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On){if(t.isAtEnd)return this.position=Fo.createAfter(n),this._next();o=n.data[t.offset]}else o=n.getChild(t.offset);if(o instanceof Nn)return this.shallow?t.offset++:t=new Fo(o,0),this.position=t,this._formatReturnValue("elementStart",o,e,t,1);if(o instanceof On){if(this.singleCharacters)return t=new Fo(o,0),this.position=t,this._next();{let n,i=o.data.length;return o==this._boundaryEndParent?(i=this.boundaries.end.offset,n=new Rn(o,0,i),t=Fo.createAfter(n)):(n=new Rn(o,0,o.data.length),t.offset++),this.position=t,this._formatReturnValue("text",n,e,t,i)}}if("string"==typeof o){let o;if(this.singleCharacters)o=1;else{o=(n===this._boundaryEndParent?this.boundaries.end.offset:n.data.length)-t.offset}const i=new Rn(n,t.offset,o);return t.offset+=o,this.position=t,this._formatReturnValue("text",i,e,t,o)}return t=Fo.createAfter(n),this.position=t,this.ignoreElementEnd?this._next():this._formatReturnValue("elementEnd",n,e,t)}_previous(){let t=Fo.createFromPosition(this.position);const e=this.position,n=t.parent;if(null===n.parent&&0===t.offset)return{done:!0};if(n==this._boundaryStartParent&&t.offset==this.boundaries.start.offset)return{done:!0};let o;if(n instanceof On){if(t.isAtStart)return this.position=Fo.createBefore(n),this._previous();o=n.data[t.offset-1]}else o=n.getChild(t.offset-1);if(o instanceof Nn)return this.shallow?(t.offset--,this.position=t,this._formatReturnValue("elementStart",o,e,t,1)):(t=new Fo(o,o.childCount),this.position=t,this.ignoreElementEnd?this._previous():this._formatReturnValue("elementEnd",o,e,t));if(o instanceof On){if(this.singleCharacters)return t=new Fo(o,o.data.length),this.position=t,this._previous();{let n,i=o.data.length;if(o==this._boundaryStartParent){const e=this.boundaries.start.offset;i=(n=new Rn(o,e,o.data.length-e)).data.length,t=Fo.createBefore(n)}else n=new Rn(o,0,o.data.length),t.offset--;return this.position=t,this._formatReturnValue("text",n,e,t,i)}}if("string"==typeof o){let o;if(this.singleCharacters)o=1;else{const e=n===this._boundaryStartParent?this.boundaries.start.offset:0;o=t.offset-e}t.offset-=o;const i=new Rn(n,t.offset,o);return this.position=t,this._formatReturnValue("text",i,e,t,o)}return t=Fo.createBefore(n),this.position=t,this._formatReturnValue("elementStart",n,e,t,1)}_formatReturnValue(t,e,n,o,i){return e instanceof Rn&&(e.offsetInText+e.data.length==e.textNode.data.length&&("forward"!=this.direction||this.boundaries&&this.boundaries.end.isEqual(this.position)?n=Fo.createAfter(e.textNode):(o=Fo.createAfter(e.textNode),this.position=o)),0===e.offsetInText&&("backward"!=this.direction||this.boundaries&&this.boundaries.start.isEqual(this.position)?n=Fo.createBefore(e.textNode):(o=Fo.createBefore(e.textNode),this.position=o))),{done:!1,value:{type:t,item:e,previousPosition:n,nextPosition:o,length:i}}}}class Fo{constructor(t,e){this.parent=t,this.offset=e}get nodeAfter(){return this.parent.is("text")?null:this.parent.getChild(this.offset)||null}get nodeBefore(){return this.parent.is("text")?null:this.parent.getChild(this.offset-1)||null}get isAtStart(){return 0===this.offset}get isAtEnd(){const t=this.parent.is("text")?this.parent.data.length:this.parent.childCount;return this.offset===t}get root(){return this.parent.root}get editableElement(){let t=this.parent;for(;!(t instanceof Oo);){if(!t.parent)return null;t=t.parent}return t}getShiftedBy(t){const e=Fo.createFromPosition(this),n=e.offset+t;return e.offset=n<0?0:n,e}getLastMatchingPosition(t,e={}){e.startPosition=this;const n=new Mo(e);return n.skip(t),n.position}getAncestors(){return this.parent.is("documentFragment")?[this.parent]:this.parent.getAncestors({includeSelf:!0})}getCommonAncestor(t){const e=this.getAncestors(),n=t.getAncestors();let o=0;for(;e[o]==n[o]&&e[o];)o++;return 0===o?null:e[o-1]}isEqual(t){return this.parent==t.parent&&this.offset==t.offset}isBefore(t){return"before"==this.compareWith(t)}isAfter(t){return"after"==this.compareWith(t)}compareWith(t){if(this.root!==t.root)return"different";if(this.isEqual(t))return"same";const e=this.parent.is("node")?this.parent.getPath():[],n=t.parent.is("node")?t.parent.getPath():[];e.push(this.offset),n.push(t.offset);const o=En(e,n);switch(o){case"prefix":return"before";case"extension":return"after";default:return e[o]<n[o]?"before":"after"}}static createAt(t,e){if(t instanceof Fo)return this.createFromPosition(t);{const n=t;if("end"==e)e=n.is("text")?n.data.length:n.childCount;else{if("before"==e)return this.createBefore(n);if("after"==e)return this.createAfter(n);e||(e=0)}return new Fo(n,e)}}static createAfter(t){if(t.is("textProxy"))return new Fo(t.textNode,t.offsetInText+t.data.length);if(!t.parent)throw new m.b("view-position-after-root: You can not make position after root.",{root:t});return new Fo(t.parent,t.index+1)}static createBefore(t){if(t.is("textProxy"))return new Fo(t.textNode,t.offsetInText);if(!t.parent)throw new m.b("view-position-before-root: You can not make position before root.",{root:t});return new Fo(t.parent,t.index)}static createFromPosition(t){return new this(t.parent,t.offset)}}class Vo{constructor(t,e=null){this.start=Fo.createFromPosition(t),this.end=e?Fo.createFromPosition(e):Fo.createFromPosition(t)}*[Symbol.iterator](){yield*new Mo({boundaries:this,ignoreElementEnd:!0})}get isCollapsed(){return this.start.isEqual(this.end)}get isFlat(){return this.start.parent===this.end.parent}get root(){return this.start.root}getEnlarged(){let t=this.start.getLastMatchingPosition(No,{direction:"backward"}),e=this.end.getLastMatchingPosition(No);return t.parent.is("text")&&t.isAtStart&&(t=Fo.createBefore(t.parent)),e.parent.is("text")&&e.isAtEnd&&(e=Fo.createAfter(e.parent)),new Vo(t,e)}getTrimmed(){let t=this.start.getLastMatchingPosition(No);if(t.isAfter(this.end)||t.isEqual(this.end))return new Vo(t,t);let e=this.end.getLastMatchingPosition(No,{direction:"backward"});const n=t.nodeAfter,o=e.nodeBefore;return n&&n.is("text")&&(t=new Fo(n,0)),o&&o.is("text")&&(e=new Fo(o,o.data.length)),new Vo(t,e)}isEqual(t){return this==t||this.start.isEqual(t.start)&&this.end.isEqual(t.end)}containsPosition(t){return t.isAfter(this.start)&&t.isBefore(this.end)}containsRange(t,e=!1){t.isCollapsed&&(e=!1);const n=this.containsPosition(t.start)||e&&this.start.isEqual(t.start),o=this.containsPosition(t.end)||e&&this.end.isEqual(t.end);return n&&o}getDifference(t){const e=[];return this.isIntersecting(t)?(this.containsPosition(t.start)&&e.push(new Vo(this.start,t.start)),this.containsPosition(t.end)&&e.push(new Vo(t.end,this.end))):e.push(Vo.createFromRange(this)),e}getIntersection(t){if(this.isIntersecting(t)){let e=this.start,n=this.end;return this.containsPosition(t.start)&&(e=t.start),this.containsPosition(t.end)&&(n=t.end),new Vo(e,n)}return null}getWalker(t={}){return t.boundaries=this,new Mo(t)}getCommonAncestor(){return this.start.getCommonAncestor(this.end)}*getItems(t={}){t.boundaries=this,t.ignoreElementEnd=!0;const e=new Mo(t);for(const t of e)yield t.item}*getPositions(t={}){t.boundaries=this;const e=new Mo(t);yield e.position;for(const t of e)yield t.nextPosition}isIntersecting(t){return this.start.isBefore(t.end)&&this.end.isAfter(t.start)}static createFromParentsAndOffsets(t,e,n,o){return new this(new Fo(t,e),new Fo(n,o))}static createFromRange(t){return new this(t.start,t.end)}static createFromPositionAndShift(t,e){const n=t,o=t.getShiftedBy(e);return e>0?new this(n,o):new this(o,n)}static createIn(t){return this.createFromParentsAndOffsets(t,0,t,t.childCount)}static createOn(t){const e=t.is("textProxy")?t.offsetSize:1;return this.createFromPositionAndShift(Fo.createBefore(t),e)}static createCollapsedAt(t,e){const n=Fo.createAt(t,e),o=Fo.createFromPosition(n);return new Vo(n,o)}}function No(t){return!(!t.item.is("attributeElement")&&!t.item.is("uiElement"))}function Do(t){let e=0;for(const n of t)e++;return e}class Bo{constructor(t=null,e,n){this._ranges=[],this._lastRangeBackward=!1,this._isFake=!1,this._fakeSelectionLabel="",this.setTo(t,e,n)}get isFake(){return this._isFake}get fakeSelectionLabel(){return this._fakeSelectionLabel}get anchor(){if(!this._ranges.length)return null;const t=this._ranges[this._ranges.length-1],e=this._lastRangeBackward?t.end:t.start;return Fo.createFromPosition(e)}get focus(){if(!this._ranges.length)return null;const t=this._ranges[this._ranges.length-1],e=this._lastRangeBackward?t.start:t.end;return Fo.createFromPosition(e)}get isCollapsed(){return 1===this.rangeCount&&this._ranges[0].isCollapsed}get rangeCount(){return this._ranges.length}get isBackward(){return!this.isCollapsed&&this._lastRangeBackward}get editableElement(){return this.anchor?this.anchor.editableElement:null}*getRanges(){for(const t of this._ranges)yield Vo.createFromRange(t)}getFirstRange(){let t=null;for(const e of this._ranges)t&&!e.start.isBefore(t.start)||(t=e);return t?Vo.createFromRange(t):null}getLastRange(){let t=null;for(const e of this._ranges)t&&!e.end.isAfter(t.end)||(t=e);return t?Vo.createFromRange(t):null}getFirstPosition(){const t=this.getFirstRange();return t?Fo.createFromPosition(t.start):null}getLastPosition(){const t=this.getLastRange();return t?Fo.createFromPosition(t.end):null}isEqual(t){if(this.isFake!=t.isFake)return!1;if(this.isFake&&this.fakeSelectionLabel!=t.fakeSelectionLabel)return!1;if(this.rangeCount!=t.rangeCount)return!1;if(0===this.rangeCount)return!0;if(!this.anchor.isEqual(t.anchor)||!this.focus.isEqual(t.focus))return!1;for(const e of this._ranges){let n=!1;for(const o of t._ranges)if(e.isEqual(o)){n=!0;break}if(!n)return!1}return!0}isSimilar(t){if(this.isBackward!=t.isBackward)return!1;const e=Do(this.getRanges());if(e!=Do(t.getRanges()))return!1;if(0==e)return!0;for(let e of this.getRanges()){e=e.getTrimmed();let n=!1;for(let o of t.getRanges())if(o=o.getTrimmed(),e.start.isEqual(o.start)&&e.end.isEqual(o.end)){n=!0;break}if(!n)return!1}return!0}getSelectedElement(){if(1!==this.rangeCount)return null;const t=this.getFirstRange(),e=t.start.nodeAfter,n=t.end.nodeBefore;return e instanceof Nn&&e==n?e:null}setTo(t,e,n){if(null===t)this._setRanges([]),this._setFakeOptions(e);else if(t instanceof Bo||t instanceof Lo)this._setRanges(t.getRanges(),t.isBackward),this._setFakeOptions({fake:t.isFake,label:t.fakeSelectionLabel});else if(t instanceof Vo)this._setRanges([t],e&&e.backward),this._setFakeOptions(e);else if(t instanceof Fo)this._setRanges([new Vo(t)]),this._setFakeOptions(e);else if(t instanceof Pn){const o=!!n&&!!n.backward;let i;if(void 0===e)throw new m.b("view-selection-setTo-required-second-parameter: selection.setTo requires the second parameter when the first parameter is a node.");i="in"==e?Vo.createIn(t):"on"==e?Vo.createOn(t):Vo.createCollapsedAt(t,e),this._setRanges([i],o),this._setFakeOptions(n)}else{if(!Mn(t))throw new m.b("view-selection-setTo-not-selectable: Cannot set selection to given place.");this._setRanges(t,e&&e.backward),this._setFakeOptions(e)}this.fire("change")}setFocus(t,e){if(null===this.anchor)throw new m.b("view-selection-setFocus-no-ranges: Cannot set selection focus if there are no ranges in selection.");const n=Fo.createAt(t,e);if("same"==n.compareWith(this.focus))return;const o=this.anchor;this._ranges.pop(),"before"==n.compareWith(o)?this._addRange(new Vo(n,o),!0):this._addRange(new Vo(o,n)),this.fire("change")}_setRanges(t,e=!1){t=Array.from(t),this._ranges=[];for(const e of t)this._addRange(e);this._lastRangeBackward=!!e}_setFakeOptions(t={}){this._isFake=!!t.fake,this._fakeSelectionLabel=t.fake&&t.label||""}_addRange(t,e=!1){if(!(t instanceof Vo))throw new m.b("view-selection-invalid-range: Invalid Range.");this._pushRange(t),this._lastRangeBackward=!!e}_pushRange(t){for(const e of this._ranges)if(t.isIntersecting(e))throw new m.b("view-selection-range-intersects: Trying to add a range that intersects with another range from selection.",{addedRange:t,intersectingRange:e});this._ranges.push(Vo.createFromRange(t))}}P(Bo,y);class Lo{constructor(t=null,e,n){this._selection=new Bo,this._selection.delegate("change").to(this),this._selection.setTo(t,e,n)}get isFake(){return this._selection.isFake}get fakeSelectionLabel(){return this._selection.fakeSelectionLabel}get anchor(){return this._selection.anchor}get focus(){return this._selection.focus}get isCollapsed(){return this._selection.isCollapsed}get rangeCount(){return this._selection.rangeCount}get isBackward(){return this._selection.isBackward}get editableElement(){return this._selection.editableElement}get _ranges(){return this._selection._ranges}*getRanges(){yield*this._selection.getRanges()}getFirstRange(){return this._selection.getFirstRange()}getLastRange(){return this._selection.getLastRange()}getFirstPosition(){return this._selection.getFirstPosition()}getLastPosition(){return this._selection.getLastPosition()}getSelectedElement(){return this._selection.getSelectedElement()}isEqual(t){return this._selection.isEqual(t)}isSimilar(t){return this._selection.isSimilar(t)}_setTo(t,e,n){this._selection.setTo(t,e,n)}_setFocus(t,e){this._selection.setFocus(t,e)}}P(Lo,y);class jo{constructor(t={}){this._items=[],this._itemMap=new Map,this._idProperty=t.idProperty||"id",this._bindToExternalToInternalMap=new WeakMap,this._bindToInternalToExternalMap=new WeakMap,this._skippedIndexesFromExternal=[]}get length(){return this._items.length}get first(){return this._items[0]||null}get last(){return this._items[this.length-1]||null}add(t,e){let n;const o=this._idProperty;if(o in t){if("string"!=typeof(n=t[o]))throw new m.b("collection-add-invalid-id");if(this.get(n))throw new m.b("collection-add-item-already-exists")}else t[o]=n=w();if(void 0===e)e=this._items.length;else if(e>this._items.length||e<0)throw new m.b("collection-add-item-invalid-index");return this._items.splice(e,0,t),this._itemMap.set(n,t),this.fire("add",t,e),this}get(t){let e;if("string"==typeof t)e=this._itemMap.get(t);else{if("number"!=typeof t)throw new m.b("collection-get-invalid-arg: Index or id must be given.");e=this._items[t]}return e||null}getIndex(t){let e;return e="string"==typeof t?this._itemMap.get(t):t,this._items.indexOf(e)}remove(t){let e,n,o,i=!1;const r=this._idProperty;if("string"==typeof t?(n=t,i=!(o=this._itemMap.get(n)),o&&(e=this._items.indexOf(o))):"number"==typeof t?(e=t,i=!(o=this._items[e]),o&&(n=o[r])):(n=(o=t)[r],i=-1==(e=this._items.indexOf(o))||!this._itemMap.get(n)),i)throw new m.b("collection-remove-404: Item not found.");this._items.splice(e,1),this._itemMap.delete(n);const s=this._bindToInternalToExternalMap.get(o);return this._bindToInternalToExternalMap.delete(o),this._bindToExternalToInternalMap.delete(s),this.fire("remove",o,e),o}map(t,e){return this._items.map(t,e)}find(t,e){return this._items.find(t,e)}filter(t,e){return this._items.filter(t,e)}clear(){for(this._bindToCollection&&(this.stopListening(this._bindToCollection),this._bindToCollection=null);this.length;)this.remove(0)}bindTo(t){if(this._bindToCollection)throw new m.b("collection-bind-to-rebind: The collection cannot be bound more than once.");return this._bindToCollection=t,{as:t=>{this._setUpBindToBinding(e=>new t(e))},using:t=>{"function"==typeof t?this._setUpBindToBinding(e=>t(e)):this._setUpBindToBinding(e=>e[t])}}}_setUpBindToBinding(t){const e=this._bindToCollection,n=(n,o,i)=>{const r=e._bindToCollection==this,s=e._bindToInternalToExternalMap.get(o);if(r&&s)this._bindToExternalToInternalMap.set(o,s),this._bindToInternalToExternalMap.set(s,o);else{const n=t(o);if(!n)return void this._skippedIndexesFromExternal.push(i);let r=i;for(const t of this._skippedIndexesFromExternal)i>t&&r--;for(const t of e._skippedIndexesFromExternal)r>=t&&r++;this._bindToExternalToInternalMap.set(o,n),this._bindToInternalToExternalMap.set(n,o),this.add(n,r);for(let t=0;t<e._skippedIndexesFromExternal.length;t++)r<=e._skippedIndexesFromExternal[t]&&e._skippedIndexesFromExternal[t]++}};for(const t of e)n(0,t,e.getIndex(t));this.listenTo(e,"add",n),this.listenTo(e,"remove",(t,e,n)=>{const o=this._bindToExternalToInternalMap.get(e);o&&this.remove(o),this._skippedIndexesFromExternal=this._skippedIndexesFromExternal.reduce((t,e)=>(n<e&&t.push(e-1),n>e&&t.push(e),t),[])})}[Symbol.iterator](){return this._items[Symbol.iterator]()}}P(jo,y);class zo{constructor(){this.selection=new Lo,this.roots=new jo({idProperty:"rootName"}),this.set("isReadOnly",!1),this.set("isFocused",!1),this.set("isComposing",!1),this._postFixers=new Set}getRoot(t="main"){return this.roots.get(t)}registerPostFixer(t){this._postFixers.add(t)}_callPostFixers(t){let e=!1;do{for(const n of this._postFixers)if(e=n(t))break}while(e)}}P(zo,xo);const qo=10;class Uo extends Nn{constructor(t,e,n){super(t,e,n),this.getFillerOffset=Wo,this._priority=qo,this._id=null,this._clonesGroup=null}get priority(){return this._priority}get id(){return this._id}getElementsWithSameId(){if(null===this.id)throw new m.b("attribute-element-get-elements-with-same-id-no-id: Cannot get elements with the same id for an attribute element without id.");return new Set(this._clonesGroup)}is(t,e=null){return e?"attributeElement"==t&&e==this.name||super.is(t,e):"attributeElement"==t||super.is(t)}isSimilar(t){return null!==this.id||null!==t.id?this.id===t.id:super.isSimilar(t)&&this.priority==t.priority}_clone(t){const e=super._clone(t);return e._priority=this._priority,e._id=this._id,e}}function Wo(){if(Ho(this))return null;let t=this.parent;for(;t&&t.is("attributeElement");){if(Ho(t)>1)return null;t=t.parent}return!t||Ho(t)>1?null:this.childCount}function Ho(t){return Array.from(t.getChildren()).filter(t=>!t.is("uiElement")).length}Uo.DEFAULT_PRIORITY=qo;class $o extends Nn{constructor(t,e,n){super(t,e,n),this.getFillerOffset=Ko}is(t,e=null){return e?"emptyElement"==t&&e==this.name||super.is(t,e):"emptyElement"==t||super.is(t)}_insertChild(t,e){if(e&&(e instanceof Pn||Array.from(e).length>0))throw new m.b("view-emptyelement-cannot-add: Cannot add child nodes to EmptyElement instance.")}}function Ko(){return null}const Go=navigator.userAgent.toLowerCase();var Jo={isMac:function(t){return t.indexOf("macintosh")>-1}(Go),isEdge:function(t){return!!t.match(/edge\/(\d+.?\d*)/)}(Go)};const Qo={"⌘":"ctrl","⇧":"shift","⌥":"alt"},Yo={ctrl:"⌘",shift:"⇧",alt:"⌥"},Xo=function(){const t={arrowleft:37,arrowup:38,arrowright:39,arrowdown:40,backspace:8,delete:46,enter:13,space:32,esc:27,tab:9,ctrl:1114112,cmd:1114112,shift:2228224,alt:4456448};for(let e=65;e<=90;e++){const n=String.fromCharCode(e);t[n.toLowerCase()]=e}for(let e=48;e<=57;e++)t[e-48]=e;for(let e=112;e<=123;e++)t["f"+(e-111)]=e;return t}();function Zo(t){let e;if("string"==typeof t){if(!(e=Xo[t.toLowerCase()]))throw new m.b("keyboard-unknown-key: Unknown key name.",{key:t})}else e=t.keyCode+(t.altKey?Xo.alt:0)+(t.ctrlKey?Xo.ctrl:0)+(t.shiftKey?Xo.shift:0);return e}function ti(t){return"string"==typeof t&&(t=ei(t)),t.map(t=>"string"==typeof t?Zo(t):t).reduce((t,e)=>e+t,0)}function ei(t){return t.split(/\s*\+\s*/)}class ni extends Nn{constructor(t,e,n){super(t,e,n),this.getFillerOffset=ii}is(t,e=null){return e?"uiElement"==t&&e==this.name||super.is(t,e):"uiElement"==t||super.is(t)}_insertChild(t,e){if(e&&(e instanceof Pn||Array.from(e).length>0))throw new m.b("view-uielement-cannot-add: Cannot add child nodes to UIElement instance.")}render(t){return this.toDomElement(t)}toDomElement(t){const e=t.createElement(this.name);for(const t of this.getAttributeKeys())e.setAttribute(t,this.getAttribute(t));return e}}function oi(t){t.document.on("keydown",(e,n)=>(function(t,e,n){if(e.keyCode==Xo.arrowright){const t=e.domTarget.ownerDocument.defaultView.getSelection(),o=1==t.rangeCount&&t.getRangeAt(0).collapsed;if(o||e.shiftKey){const e=t.focusNode,i=t.focusOffset,r=n.domPositionToView(e,i);if(null===r)return;let s=!1;const a=r.getLastMatchingPosition(t=>(t.item.is("uiElement")&&(s=!0),!(!t.item.is("uiElement")&&!t.item.is("attributeElement"))));if(s){const e=n.viewPositionToDom(a);o?t.collapse(e.parent,e.offset):t.extend(e.parent,e.offset)}}}})(0,n,t.domConverter))}function ii(){return null}class ri{constructor(t){this._children=[],t&&this._insertChild(0,t)}[Symbol.iterator](){return this._children[Symbol.iterator]()}get childCount(){return this._children.length}get isEmpty(){return 0===this.childCount}get root(){return this}get parent(){return null}is(t){return"documentFragment"==t}_appendChild(t){return this._insertChild(this.childCount,t)}getChild(t){return this._children[t]}getChildIndex(t){return this._children.indexOf(t)}getChildren(){return this._children[Symbol.iterator]()}_insertChild(t,e){this._fireChange("children",this);let n=0;const o=function(t){if("string"==typeof t)return[new On(t)];Mn(t)||(t=[t]);return Array.from(t).map(t=>"string"==typeof t?new On(t):t instanceof Rn?new On(t.data):t)}(e);for(const e of o)null!==e.parent&&e._remove(),e.parent=this,this._children.splice(t,0,e),t++,n++;return n}_removeChildren(t,e=1){this._fireChange("children",this);for(let n=t;n<t+e;n++)this._children[n].parent=null;return this._children.splice(t,e)}_fireChange(t,e){this.fire("change:"+t,e)}}P(ri,y);class si{constructor(t){this.document=t,this._cloneGroups=new Map}setSelection(t,e,n){this.document.selection._setTo(t,e,n)}setSelectionFocus(t,e){this.document.selection._setFocus(t,e)}createText(t){return new On(t)}createAttributeElement(t,e,n={}){const o=new Uo(t,e);return n.priority&&(o._priority=n.priority),n.id&&(o._id=n.id),o}createContainerElement(t,e){return new Ln(t,e)}createEditableElement(t,e){const n=new Oo(t,e);return n._document=this.document,n}createEmptyElement(t,e){return new $o(t,e)}createUIElement(t,e,n){const o=new ni(t,e);return n&&(o.render=n),o}setAttribute(t,e,n){n._setAttribute(t,e)}removeAttribute(t,e){e._removeAttribute(t)}addClass(t,e){e._addClass(t)}removeClass(t,e){e._removeClass(t)}setStyle(t,e,n){f(t)&&void 0===n&&(n=e),n._setStyle(t,e)}removeStyle(t,e){e._removeStyle(t)}setCustomProperty(t,e,n){n._setCustomProperty(t,e)}removeCustomProperty(t,e){return e._removeCustomProperty(t)}breakAttributes(t){return t instanceof Fo?this._breakAttributes(t):this._breakAttributesRange(t)}breakContainer(t){const e=t.parent;if(!e.is("containerElement"))throw new m.b("view-writer-break-non-container-element: Trying to break an element which is not a container element.");if(!e.parent)throw new m.b("view-writer-break-root: Trying to break root element.");if(t.isAtStart)return Fo.createBefore(e);if(!t.isAtEnd){const n=e._clone(!1);this.insert(Fo.createAfter(e),n);const o=new Vo(t,Fo.createAt(e,"end")),i=new Fo(n,0);this.move(o,i)}return Fo.createAfter(e)}mergeAttributes(t){const e=t.offset,n=t.parent;if(n.is("text"))return t;if(n.is("attributeElement")&&0===n.childCount){const t=n.parent,e=n.index;return n._remove(),this._removeFromClonedElementsGroup(n),this.mergeAttributes(new Fo(t,e))}const o=n.getChild(e-1),i=n.getChild(e);if(!o||!i)return t;if(o.is("text")&&i.is("text"))return ui(o,i);if(o.is("attributeElement")&&i.is("attributeElement")&&o.isSimilar(i)){const t=o.childCount;return o._appendChild(i.getChildren()),i._remove(),this._removeFromClonedElementsGroup(i),this.mergeAttributes(new Fo(o,t))}return t}mergeContainers(t){const e=t.nodeBefore,n=t.nodeAfter;if(!(e&&n&&e.is("containerElement")&&n.is("containerElement")))throw new m.b("view-writer-merge-containers-invalid-position: Element before and after given position cannot be merged.");const o=e.getChild(e.childCount-1),i=o instanceof On?Fo.createAt(o,"end"):Fo.createAt(e,"end");return this.move(Vo.createIn(n),Fo.createAt(e,"end")),this.remove(Vo.createOn(n)),i}insert(t,e){(function t(e){for(const n of e){if(!hi.some(t=>n instanceof t))throw new m.b("view-writer-insert-invalid-node");n.is("text")||t(n.getChildren())}})(e=Mn(e)?[...e]:[e]);const n=ai(t);if(!n)throw new m.b("view-writer-invalid-position-container");const o=this._breakAttributes(t,!0),i=n._insertChild(o.offset,e);for(const t of e)this._addToClonedElementsGroup(t);const r=o.getShiftedBy(i),s=this.mergeAttributes(o);if(0===i)return new Vo(s,s);{s.isEqual(o)||r.offset--;const t=this.mergeAttributes(r);return new Vo(s,t)}}remove(t){if(pi(t),t.isCollapsed)return new ri;const{start:e,end:n}=this._breakAttributesRange(t,!0),o=e.parent,i=n.offset-e.offset,r=o._removeChildren(e.offset,i);for(const t of r)this._removeFromClonedElementsGroup(t);const s=this.mergeAttributes(e);return t.start=s,t.end=Fo.createFromPosition(s),new ri(r)}clear(t,e){pi(t);const n=t.getWalker({direction:"backward",ignoreElementEnd:!0});for(const o of n){const n=o.item;let i;if(n.is("element")&&e.isSimilar(n))i=Vo.createOn(n);else if(!o.nextPosition.isAfter(t.start)&&n.is("textProxy")){const t=n.getAncestors().find(t=>t.is("element")&&e.isSimilar(t));t&&(i=Vo.createIn(t))}i&&(i.end.isAfter(t.end)&&(i.end=t.end),i.start.isBefore(t.start)&&(i.start=t.start),this.remove(i))}}move(t,e){let n;if(e.isAfter(t.end)){const o=(e=this._breakAttributes(e,!0)).parent,i=o.childCount;t=this._breakAttributesRange(t,!0),n=this.remove(t),e.offset+=o.childCount-i}else n=this.remove(t);return this.insert(e,n)}wrap(t,e){if(!(e instanceof Uo))throw new m.b("view-writer-wrap-invalid-attribute");if(pi(t),t.isCollapsed){let n=t.start;n.parent.is("element")&&!function(t){return Array.from(t.getChildren()).some(t=>!t.is("uiElement"))}(n.parent)&&(n=n.getLastMatchingPosition(t=>t.item.is("uiElement"))),n=this._wrapPosition(n,e);const o=this.document.selection;return o.isCollapsed&&o.getFirstPosition().isEqual(t.start)&&this.setSelection(n),new Vo(n)}return this._wrapRange(t,e)}unwrap(t,e){if(!(e instanceof Uo))throw new m.b("view-writer-unwrap-invalid-attribute");if(pi(t),t.isCollapsed)return t;const{start:n,end:o}=this._breakAttributesRange(t,!0);if(o.isEqual(n.getShiftedBy(1))){const t=n.nodeAfter;if(!e.isSimilar(t)&&t instanceof Uo&&this._unwrapAttributeElement(e,t)){const t=this.mergeAttributes(n);t.isEqual(n)||o.offset--;const e=this.mergeAttributes(o);return new Vo(t,e)}}const i=n.parent,r=this._unwrapChildren(i,n.offset,o.offset,e),s=this.mergeAttributes(r.start);s.isEqual(r.start)||r.end.offset--;const a=this.mergeAttributes(r.end);return new Vo(s,a)}rename(t,e){const n=new Ln(e,t.getAttributes());return this.insert(Fo.createAfter(t),n),this.move(Vo.createIn(t),Fo.createAt(n)),this.remove(Vo.createOn(t)),n}_wrapChildren(t,e,n,o){let i=e;const r=[];for(;i<n;){const e=t.getChild(i),n=e.is("text"),s=e.is("attributeElement"),a=e.is("emptyElement"),c=e.is("uiElement");if(n||a||c||s&&ci(o,e)){const n=o._clone();e._remove(),n._appendChild(e),t._insertChild(i,n),this._addToClonedElementsGroup(n),r.push(new Fo(t,i))}else s&&this._wrapChildren(e,0,e.childCount,o);i++}let s=0;for(const t of r){if(t.offset-=s,t.offset==e)continue;this.mergeAttributes(t).isEqual(t)||(s++,n--)}return Vo.createFromParentsAndOffsets(t,e,t,n)}_unwrapChildren(t,e,n,o){let i=e;const r=[];for(;i<n;){const e=t.getChild(i);if(e.isSimilar(o)){const o=e.getChildren(),s=e.childCount;e._remove(),t._insertChild(i,o),this._removeFromClonedElementsGroup(e),r.push(new Fo(t,i),new Fo(t,i+s)),i+=s,n+=s-1}else e.is("attributeElement")&&this._unwrapChildren(e,0,e.childCount,o),i++}let s=0;for(const t of r){if(t.offset-=s,t.offset==e||t.offset==n)continue;this.mergeAttributes(t).isEqual(t)||(s++,n--)}return Vo.createFromParentsAndOffsets(t,e,t,n)}_wrapRange(t,e){if(function(t){return t.start.parent==t.end.parent&&t.start.parent.is("attributeElement")&&0===t.start.offset&&t.end.offset===t.start.parent.childCount}(t)&&this._wrapAttributeElement(e,t.start.parent)){const e=t.start.parent,n=this.mergeAttributes(Fo.createAfter(e)),o=this.mergeAttributes(Fo.createBefore(e));return new Vo(o,n)}const{start:n,end:o}=this._breakAttributesRange(t,!0);if(o.isEqual(n.getShiftedBy(1))){const t=n.nodeAfter;if(t instanceof Uo&&this._wrapAttributeElement(e,t)){const t=this.mergeAttributes(n);t.isEqual(n)||o.offset--;const e=this.mergeAttributes(o);return new Vo(t,e)}}const i=n.parent,r=this._unwrapChildren(i,n.offset,o.offset,e),s=this._wrapChildren(i,r.start.offset,r.end.offset,e),a=this.mergeAttributes(s.start);a.isEqual(s.start)||s.end.offset--;const c=this.mergeAttributes(s.end);return new Vo(a,c)}_wrapPosition(t,e){if(e.isSimilar(t.parent))return li(Fo.createFromPosition(t));t.parent.is("text")&&(t=di(t));const n=this.createAttributeElement();n._priority=Number.POSITIVE_INFINITY,n.isSimilar=(()=>!1),t.parent._insertChild(t.offset,n);const o=new Vo(t,t.getShiftedBy(1));this.wrap(o,e);const i=new Fo(n.parent,n.index);n._remove();const r=i.nodeBefore,s=i.nodeAfter;return r instanceof On&&s instanceof On?ui(r,s):li(i)}_wrapAttributeElement(t,e){if(!mi(t,e))return!1;if(t.name!==e.name||t.priority!==e.priority)return!1;for(const n of t.getAttributeKeys())if("class"!==n&&"style"!==n&&e.hasAttribute(n)&&e.getAttribute(n)!==t.getAttribute(n))return!1;for(const n of t.getStyleNames())if(e.hasStyle(n)&&e.getStyle(n)!==t.getStyle(n))return!1;for(const n of t.getAttributeKeys())"class"!==n&&"style"!==n&&(e.hasAttribute(n)||this.setAttribute(n,t.getAttribute(n),e));for(const n of t.getStyleNames())e.hasStyle(n)||this.setStyle(n,t.getStyle(n),e);for(const n of t.getClassNames())e.hasClass(n)||this.addClass(n,e);return!0}_unwrapAttributeElement(t,e){if(!mi(t,e))return!1;if(t.name!==e.name||t.priority!==e.priority)return!1;for(const n of t.getAttributeKeys())if("class"!==n&&"style"!==n&&(!e.hasAttribute(n)||e.getAttribute(n)!==t.getAttribute(n)))return!1;if(!e.hasClass(...t.getClassNames()))return!1;for(const n of t.getStyleNames())if(!e.hasStyle(n)||e.getStyle(n)!==t.getStyle(n))return!1;for(const n of t.getAttributeKeys())"class"!==n&&"style"!==n&&this.removeAttribute(n,e);return this.removeClass(Array.from(t.getClassNames()),e),this.removeStyle(Array.from(t.getStyleNames()),e),!0}_breakAttributesRange(t,e=!1){const n=t.start,o=t.end;if(pi(t),t.isCollapsed){const n=this._breakAttributes(t.start,e);return new Vo(n,n)}const i=this._breakAttributes(o,e),r=i.parent.childCount,s=this._breakAttributes(n,e);return i.offset+=i.parent.childCount-r,new Vo(s,i)}_breakAttributes(t,e=!1){const n=t.offset,o=t.parent;if(t.parent.is("emptyElement"))throw new m.b("view-writer-cannot-break-empty-element");if(t.parent.is("uiElement"))throw new m.b("view-writer-cannot-break-ui-element");if(!e&&o.is("text")&&fi(o.parent))return Fo.createFromPosition(t);if(fi(o))return Fo.createFromPosition(t);if(o.is("text"))return this._breakAttributes(di(t),e);if(n==o.childCount){const t=new Fo(o.parent,o.index+1);return this._breakAttributes(t,e)}if(0===n){const t=new Fo(o.parent,o.index);return this._breakAttributes(t,e)}{const t=o.index+1,i=o._clone();o.parent._insertChild(t,i),this._addToClonedElementsGroup(i);const r=o.childCount-n,s=o._removeChildren(n,r);i._appendChild(s);const a=new Fo(o.parent,t);return this._breakAttributes(a,e)}}_addToClonedElementsGroup(t){if(!t.root.is("rootElement"))return;if(t.is("element"))for(const e of t.getChildren())this._addToClonedElementsGroup(e);const e=t.id;if(!e)return;let n=this._cloneGroups.get(e);n||(n=new Set,this._cloneGroups.set(e,n)),n.add(t),t._clonesGroup=n}_removeFromClonedElementsGroup(t){if(t.is("element"))for(const e of t.getChildren())this._removeFromClonedElementsGroup(e);const e=t.id;if(!e)return;const n=this._cloneGroups.get(e);n&&(n.delete(t),0===n.size&&this._cloneGroups.delete(e))}}function ai(t){let e=t.parent;for(;!fi(e);){if(!e)return;e=e.parent}return e}function ci(t,e){return t.priority<e.priority||!(t.priority>e.priority)&&t.getIdentity()<e.getIdentity()}function li(t){const e=t.nodeBefore;if(e&&e.is("text"))return new Fo(e,e.data.length);const n=t.nodeAfter;return n&&n.is("text")?new Fo(n,0):t}function di(t){if(t.offset==t.parent.data.length)return new Fo(t.parent.parent,t.parent.index+1);if(0===t.offset)return new Fo(t.parent.parent,t.parent.index);const e=t.parent.data.slice(t.offset);return t.parent._data=t.parent.data.slice(0,t.offset),t.parent.parent._insertChild(t.parent.index+1,new On(e)),new Fo(t.parent.parent,t.parent.index+1)}function ui(t,e){const n=t.data.length;return t._data+=e.data,e._remove(),new Fo(t,n)}const hi=[On,Uo,Ln,$o,ni];function fi(t){return t&&(t.is("containerElement")||t.is("documentFragment"))}function pi(t){const e=ai(t.start),n=ai(t.end);if(!e||!n||e!==n)throw new m.b("view-writer-invalid-range-container")}function mi(t,e){return null===t.id&&null===e.id}const gi=t=>{const e=t.createElement("br");return e.dataset.ckeFiller=!0,e},bi=t=>t.createTextNode(" "),wi=7;let vi="";for(let t=0;t<wi;t++)vi+="​";function _i(t){return t instanceof Text&&t.data.substr(0,wi)===vi}function ki(t){return t.data.length==wi&&_i(t)}function yi(t){return _i(t)?t.data.slice(wi):t.data}const xi=new WeakMap;function Ai(t,e){let n=xi.get(e);return n||(n=e(window.document),xi.set(e,n)),t.isEqualNode(n)}function Ci(t,e){if(e.keyCode==Xo.arrowleft){const t=e.domTarget.ownerDocument.defaultView.getSelection();if(1==t.rangeCount&&t.getRangeAt(0).collapsed){const 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t.ownerDocument.defaultView.Node}return!1}function Ri(t,e){if(t===e)return[];return function(t,e){const n=[],{firstIndex:o,lastIndexOld:i,lastIndexNew:r}=e;r-o>0&&n.push({index:o,type:"insert",values:t.substring(o,r).split("")});i-o>0&&n.push({index:o+(r-o),type:"delete",howMany:i-o});return n}(e,function(t,e){const n=Ii(t,e),o=Mi(t,n),i=Mi(e,n),r=Ii(o,i),s=t.length-r,a=e.length-r;return{firstIndex:n,lastIndexOld:s,lastIndexNew:a}}(t,e))}function Ii(t,e){for(let n=0;n<Math.max(t.length,e.length);n++)if(t[n]!==e[n])return n}function Mi(t,e){return t.substring(e).split("").reverse().join("")}class Fi{constructor(t,e){this.domDocuments=new Set,this.domConverter=t,this.markedAttributes=new Set,this.markedChildren=new Set,this.markedTexts=new Set,this.selection=e,this.isFocused=!1,this._inlineFiller=null,this._fakeSelectionContainer=null}markToSync(t,e){if("text"===t)this.domConverter.mapViewToDom(e.parent)&&this.markedTexts.add(e);else{if(!this.domConverter.mapViewToDom(e))return;if("attributes"===t)this.markedAttributes.add(e);else{if("children"!==t)throw new m.b("view-renderer-unknown-type: Unknown type passed to Renderer.markToSync.");this.markedChildren.add(e)}}}render(){let t;for(const t of this.markedChildren)this._updateChildrenMappings(t);this._inlineFiller&&!this._isSelectionInInlineFiller()&&this._removeInlineFiller(),this._inlineFiller?t=this._getInlineFillerPosition():this._needsInlineFillerAtSelection()&&(t=this.selection.getFirstPosition(),this.markedChildren.add(t.parent));for(const t of this.markedAttributes)this._updateAttrs(t);for(const e of this.markedChildren)this._updateChildren(e,{inlineFillerPosition:t});for(const e of this.markedTexts)!this.markedChildren.has(e.parent)&&this.domConverter.mapViewToDom(e.parent)&&this._updateText(e,{inlineFillerPosition:t});if(t){const e=this.domConverter.viewPositionToDom(t),n=e.parent.ownerDocument;_i(e.parent)?this._inlineFiller=e.parent:this._inlineFiller=Vi(n,e.parent,e.offset)}else this._inlineFiller=null;this._updateSelection(),this._updateFocus(),this.markedTexts.clear(),this.markedAttributes.clear(),this.markedChildren.clear()}_updateChildrenMappings(t){const e=this.domConverter.mapViewToDom(t);if(!e)return;const n=this.domConverter.mapViewToDom(t).childNodes,o=Array.from(this.domConverter.viewChildrenToDom(t,e.ownerDocument,{withChildren:!1})),i=this._diffNodeLists(n,o),r=this._findReplaceActions(i,n,o);if(-1!==r.indexOf("replace")){const e={equal:0,insert:0,delete:0};for(const i of r)if("replace"===i){const i=e.equal+e.insert,r=e.equal+e.delete,s=t.getChild(i);s&&!s.is("uiElement")&&this._updateElementMappings(s,n[r]),Ei(o[i]),e.equal++}else e[i]++}}_updateElementMappings(t,e){const n=this.domConverter.mapDomToView(e);(!n||n&&!n.isSimilar(t))&&this.markedAttributes.add(t),this.domConverter.unbindDomElement(e),this.domConverter.bindElements(e,t),this.markedChildren.add(t)}_getInlineFillerPosition(){const t=this.selection.getFirstPosition();return t.parent.is("text")?Fo.createBefore(this.selection.getFirstPosition().parent):t}_isSelectionInInlineFiller(){if(1!=this.selection.rangeCount||!this.selection.isCollapsed)return!1;const t=this.selection.getFirstPosition(),e=this.domConverter.viewPositionToDom(t);return!!(e&&Pi(e.parent)&&_i(e.parent))}_removeInlineFiller(){const t=this._inlineFiller;if(!_i(t))throw new m.b("view-renderer-filler-was-lost: The inline filler node was lost.");ki(t)?t.parentNode.removeChild(t):t.data=t.data.substr(wi),this._inlineFiller=null}_needsInlineFillerAtSelection(){if(1!=this.selection.rangeCount||!this.selection.isCollapsed)return!1;const t=this.selection.getFirstPosition(),e=t.parent,n=t.offset;if(!this.domConverter.mapViewToDom(e.root))return!1;if(!e.is("element"))return!1;if(!function(t){if("false"==t.getAttribute("contenteditable"))return!1;const e=t.findAncestor(t=>t.hasAttribute("contenteditable"));return!e||"true"==e.getAttribute("contenteditable")}(e))return!1;if(n===e.getFillerOffset())return!1;const o=t.nodeBefore,i=t.nodeAfter;return!(o instanceof On||i instanceof On)}_updateText(t,e){const n=this.domConverter.findCorrespondingDomText(t),o=this.domConverter.viewToDom(t,n.ownerDocument),i=n.data;let r=o.data;const s=e.inlineFillerPosition;if(s&&s.parent==t.parent&&s.offset==t.index&&(r=vi+r),i!=r){const t=Ri(i,r);for(const e of t)"insert"===e.type?n.insertData(e.index,e.values.join("")):n.deleteData(e.index,e.howMany)}}_updateAttrs(t){const e=this.domConverter.mapViewToDom(t);if(!e)return;const n=Array.from(e.attributes).map(t=>t.name),o=t.getAttributeKeys();for(const n of o)e.setAttribute(n,t.getAttribute(n));for(const o of n)t.hasAttribute(o)||e.removeAttribute(o)}_updateChildren(t,e){const n=this.domConverter.mapViewToDom(t);if(!n)return;const o=e.inlineFillerPosition,i=this.domConverter.mapViewToDom(t).childNodes,r=Array.from(this.domConverter.viewChildrenToDom(t,n.ownerDocument,{bind:!0,inlineFillerPosition:o}));o&&o.parent===t&&Vi(n.ownerDocument,r,o.offset);const s=this._diffNodeLists(i,r);let a=0;const c=new Set;for(const t of s)"insert"===t?(Si(n,a,r[a]),a++):"delete"===t?(c.add(i[a]),Ei(i[a])):(this._markDescendantTextToSync(this.domConverter.domToView(r[a])),a++);for(const t of c)t.parentNode||this.domConverter.unbindDomElement(t)}_diffNodeLists(t,e){return Ti(t,e,function(t,e,n){if(e===n)return!0;if(Pi(e)&&Pi(n))return e.data===n.data;if(Ai(e,t)&&Ai(n,t))return!0;return!1}.bind(null,this.domConverter.blockFiller))}_findReplaceActions(t,e,n){if(-1===t.indexOf("insert")||-1===t.indexOf("delete"))return t;let o=[],i=[],r=[];const s={equal:0,insert:0,delete:0};for(const a of t)"insert"===a?r.push(n[s.equal+s.insert]):"delete"===a?i.push(e[s.equal+s.delete]):((o=o.concat(Ti(i,r,Ni).map(t=>"equal"===t?"replace":t))).push("equal"),i=[],r=[]),s[a]++;return o.concat(Ti(i,r,Ni).map(t=>"equal"===t?"replace":t))}_markDescendantTextToSync(t){if(t)if(t.is("text"))this.markedTexts.add(t);else if(t.is("element"))for(const e of t.getChildren())this._markDescendantTextToSync(e)}_updateSelection(){if(0===this.selection.rangeCount)return this._removeDomSelection(),void this._removeFakeSelection();const t=this.domConverter.mapViewToDom(this.selection.editableElement);this.isFocused&&t&&(this.selection.isFake?this._updateFakeSelection(t):(this._removeFakeSelection(),this._updateDomSelection(t)))}_updateFakeSelection(t){const e=t.ownerDocument;let n=this._fakeSelectionContainer;n||(this._fakeSelectionContainer=n=e.createElement("div"),Object.assign(n.style,{position:"fixed",top:0,left:"-9999px",width:"42px"}),n.appendChild(e.createTextNode(" "))),n.parentElement||t.appendChild(n),n.firstChild.data=this.selection.fakeSelectionLabel||" ";const o=e.getSelection(),i=e.createRange();o.removeAllRanges(),i.selectNodeContents(n),o.addRange(i),this.domConverter.bindFakeSelection(n,this.selection)}_updateDomSelection(t){const e=t.ownerDocument.defaultView.getSelection();if(!this._domSelectionNeedsUpdate(e))return;const n=this.domConverter.viewPositionToDom(this.selection.anchor),o=this.domConverter.viewPositionToDom(this.selection.focus);t.focus(),e.collapse(n.parent,n.offset),e.extend(o.parent,o.offset)}_domSelectionNeedsUpdate(t){if(!this.domConverter.isDomSelectionCorrect(t))return!0;const e=t&&this.domConverter.domSelectionToView(t);return(!e||!this.selection.isEqual(e))&&!(!this.selection.isCollapsed&&this.selection.isSimilar(e))}_removeDomSelection(){for(const t of this.domDocuments){if(t.getSelection().rangeCount){const e=t.activeElement,n=this.domConverter.mapDomToView(e);e&&n&&t.getSelection().removeAllRanges()}}}_removeFakeSelection(){const t=this._fakeSelectionContainer;t&&t.remove()}_updateFocus(){if(this.isFocused){const t=this.selection.editableElement;t&&this.domConverter.focus(t)}}}function Vi(t,e,n){const o=e instanceof Array?e:e.childNodes,i=o[n];if(Pi(i))return i.data=vi+i.data,i;{const i=t.createTextNode(vi);return Array.isArray(e)?o.splice(n,0,i):Si(e,n,i),i}}function Ni(t,e){return Oi(t)&&Oi(e)&&!Pi(t)&&!Pi(e)&&t.tagName.toLowerCase()===e.tagName.toLowerCase()}P(Fi,xo);var Di={window:window,document:document};function Bi(t){let e=0;for(;t.previousSibling;)t=t.previousSibling,e++;return e}function Li(t){const e=[];for(;t&&t.nodeType!=Node.DOCUMENT_NODE;)e.unshift(t),t=t.parentNode;return e}var ji=function(t){return!!t&&1===t.nodeType&&s(t)&&!f(t)};class zi{constructor(t={}){this.blockFiller=t.blockFiller||gi,this.preElements=["pre"],this.blockElements=["p","div","h1","h2","h3","h4","h5","h6"],this._domToViewMapping=new WeakMap,this._viewToDomMapping=new WeakMap,this._fakeSelectionMapping=new WeakMap}bindFakeSelection(t,e){this._fakeSelectionMapping.set(t,new Bo(e))}fakeSelectionToView(t){return this._fakeSelectionMapping.get(t)}bindElements(t,e){this._domToViewMapping.set(t,e),this._viewToDomMapping.set(e,t)}unbindDomElement(t){const e=this._domToViewMapping.get(t);if(e){this._domToViewMapping.delete(t),this._viewToDomMapping.delete(e);for(const e of Array.from(t.childNodes))this.unbindDomElement(e)}}bindDocumentFragments(t,e){this._domToViewMapping.set(t,e),this._viewToDomMapping.set(e,t)}viewToDom(t,e,n={}){if(t.is("text")){const n=this._processDataFromViewText(t);return e.createTextNode(n)}{if(this.mapViewToDom(t))return this.mapViewToDom(t);let o;if(t.is("documentFragment"))o=e.createDocumentFragment(),n.bind&&this.bindDocumentFragments(o,t);else{if(t.is("uiElement"))return o=t.render(e),n.bind&&this.bindElements(o,t),o;o=e.createElement(t.name),n.bind&&this.bindElements(o,t);for(const e of t.getAttributeKeys())o.setAttribute(e,t.getAttribute(e))}if(n.withChildren||void 0===n.withChildren)for(const i of this.viewChildrenToDom(t,e,n))o.appendChild(i);return o}}*viewChildrenToDom(t,e,n={}){const o=t.getFillerOffset&&t.getFillerOffset();let i=0;for(const r of t.getChildren())o===i&&(yield this.blockFiller(e)),yield this.viewToDom(r,e,n),i++;o===i&&(yield this.blockFiller(e))}viewRangeToDom(t){const e=this.viewPositionToDom(t.start),n=this.viewPositionToDom(t.end),o=document.createRange();return o.setStart(e.parent,e.offset),o.setEnd(n.parent,n.offset),o}viewPositionToDom(t){const e=t.parent;if(e.is("text")){const n=this.findCorrespondingDomText(e);if(!n)return null;let o=t.offset;return _i(n)&&(o+=wi),{parent:n,offset:o}}{let n,o,i;if(0===t.offset){if(!(n=this.mapViewToDom(e)))return null;i=n.childNodes[0]}else{const e=t.nodeBefore;if(!(o=e.is("text")?this.findCorrespondingDomText(e):this.mapViewToDom(t.nodeBefore)))return null;n=o.parentNode,i=o.nextSibling}if(Pi(i)&&_i(i))return{parent:i,offset:wi};return{parent:n,offset:o?Bi(o)+1:0}}}domToView(t,e={}){if(Ai(t,this.blockFiller))return null;const n=this.getParentUIElement(t,this._domToViewMapping);if(n)return n;if(Pi(t)){if(ki(t))return null;{const e=this._processDataFromDomText(t);return""===e?null:new On(e)}}if(this.isComment(t))return null;{if(this.mapDomToView(t))return this.mapDomToView(t);let n;if(this.isDocumentFragment(t))n=new ri,e.bind&&this.bindDocumentFragments(t,n);else{const o=e.keepOriginalCase?t.tagName:t.tagName.toLowerCase();n=new Nn(o),e.bind&&this.bindElements(t,n);const i=t.attributes;for(let t=i.length-1;t>=0;t--)n._setAttribute(i[t].name,i[t].value)}if(e.withChildren||void 0===e.withChildren)for(const o of this.domChildrenToView(t,e))n._appendChild(o);return n}}*domChildrenToView(t,e={}){for(let n=0;n<t.childNodes.length;n++){const o=t.childNodes[n],i=this.domToView(o,e);null!==i&&(yield i)}}domSelectionToView(t){if(1===t.rangeCount){let e=t.getRangeAt(0).startContainer;Pi(e)&&(e=e.parentNode);const n=this.fakeSelectionToView(e);if(n)return n}const e=this.isDomSelectionBackward(t),n=[];for(let e=0;e<t.rangeCount;e++){const o=t.getRangeAt(e),i=this.domRangeToView(o);i&&n.push(i)}return new Bo(n,{backward:e})}domRangeToView(t){const e=this.domPositionToView(t.startContainer,t.startOffset),n=this.domPositionToView(t.endContainer,t.endOffset);return e&&n?new Vo(e,n):null}domPositionToView(t,e){if(Ai(t,this.blockFiller))return this.domPositionToView(t.parentNode,Bi(t));const n=this.mapDomToView(t);if(n&&n.is("uiElement"))return Fo.createBefore(n);if(Pi(t)){if(ki(t))return this.domPositionToView(t.parentNode,Bi(t));const n=this.findCorrespondingViewText(t);let o=e;return n?(_i(t)&&(o=(o-=wi)<0?0:o),new Fo(n,o)):null}if(0===e){const e=this.mapDomToView(t);if(e)return new Fo(e,0)}else{const n=t.childNodes[e-1],o=Pi(n)?this.findCorrespondingViewText(n):this.mapDomToView(n);if(o&&o.parent)return new Fo(o.parent,o.index+1)}return null}mapDomToView(t){return this.getParentUIElement(t)||this._domToViewMapping.get(t)}findCorrespondingViewText(t){if(ki(t))return null;const e=this.getParentUIElement(t);if(e)return e;const n=t.previousSibling;if(n){if(!this.isElement(n))return null;const t=this.mapDomToView(n);if(t){return t.nextSibling instanceof On?t.nextSibling:null}}else{const e=this.mapDomToView(t.parentNode);if(e){const t=e.getChild(0);return t instanceof On?t:null}}return null}mapViewToDom(t){return this._viewToDomMapping.get(t)}findCorrespondingDomText(t){const e=t.previousSibling;return e&&this.mapViewToDom(e)?this.mapViewToDom(e).nextSibling:!e&&t.parent&&this.mapViewToDom(t.parent)?this.mapViewToDom(t.parent).childNodes[0]:null}focus(t){const e=this.mapViewToDom(t);if(e&&e.ownerDocument.activeElement!==e){const{scrollX:t,scrollY:n}=Di.window,o=[];Ui(e,t=>{const{scrollLeft:e,scrollTop:n}=t;o.push([e,n])}),e.focus(),Ui(e,t=>{const[e,n]=o.shift();t.scrollLeft=e,t.scrollTop=n}),Di.window.scrollTo(t,n)}}isElement(t){return t&&t.nodeType==Node.ELEMENT_NODE}isDocumentFragment(t){return t&&t.nodeType==Node.DOCUMENT_FRAGMENT_NODE}isComment(t){return t&&t.nodeType==Node.COMMENT_NODE}isDomSelectionBackward(t){if(t.isCollapsed)return!1;const e=document.createRange();e.setStart(t.anchorNode,t.anchorOffset),e.setEnd(t.focusNode,t.focusOffset);const n=e.collapsed;return e.detach(),n}getParentUIElement(t){const e=Li(t);for(e.pop();e.length;){const t=e.pop(),n=this._domToViewMapping.get(t);if(n&&n.is("uiElement"))return n}return null}isDomSelectionCorrect(t){return 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if(Wi(t)){const{innerWidth:e,innerHeight:n}=t;Yr(this,{top:0,right:e,bottom:n,left:0,width:e,height:n})}else Yr(this,t)}clone(){return new Jr(this)}moveTo(t,e){return this.top=e,this.right=t+this.width,this.bottom=e+this.height,this.left=t,this}moveBy(t,e){return this.top+=e,this.right+=t,this.left+=t,this.bottom+=e,this}getIntersection(t){const e={top:Math.max(this.top,t.top),right:Math.min(this.right,t.right),bottom:Math.min(this.bottom,t.bottom),left:Math.max(this.left,t.left)};return e.width=e.right-e.left,e.height=e.bottom-e.top,e.width<0||e.height<0?null:new Jr(e)}getIntersectionArea(t){const e=this.getIntersection(t);return e?e.getArea():0}getArea(){return this.width*this.height}getVisible(){const t=this._source;let e=this.clone();if(!Xr(t)){let n=t.parentNode||t.commonAncestorContainer;for(;n&&!Xr(n);){const t=new Jr(n),o=e.getIntersection(t);if(!o)return null;o.getArea()<e.getArea()&&(e=o),n=n.parentNode}}return e}isEqual(t){for(const e of Qr)if(this[e]!==t[e])return!1;return!0}contains(t){const e=this.getIntersection(t);return!(!e||!e.isEqual(t))}excludeScrollbarsAndBorders(){const t=this._source;let e,n;if(Wi(t))e=t.innerWidth-t.document.documentElement.clientWidth,n=t.innerHeight-t.document.documentElement.clientHeight;else{const o=Gr(this._source);e=t.offsetWidth-t.clientWidth,n=t.offsetHeight-t.clientHeight,this.moveBy(o.left,o.top)}return this.width-=e,this.right-=e,this.height-=n,this.bottom-=n,this}static getDomRangeRects(t){const e=[],n=Array.from(t.getClientRects());if(n.length)for(const t of n)e.push(new Jr(t));else{let n=t.startContainer;Pi(n)&&(n=n.parentNode);const o=new Jr(n.getBoundingClientRect());o.right=o.left,o.width=0,e.push(o)}return e}}const Qr=["top","right","bottom","left","width","height"];function Yr(t,e){for(const n of Qr)t[n]=e[n]}function Xr(t){return!!ji(t)&&t===t.ownerDocument.body}function Zr({target:t,viewportOffset:e=0}){const n=ss(t);let o=n,i=null;for(;o;){let r;es(r=as(o==n?t:i),()=>cs(t,o));const s=cs(t,o);if(ts(o,s,e),o.parent!=o){if(i=o.frameElement,o=o.parent,!i)return}else o=null}}function ts(t,e,n){const o=e.clone().moveBy(0,n),i=e.clone().moveBy(0,-n),r=new Jr(t).excludeScrollbarsAndBorders();if(![i,o].every(t=>r.contains(t))){let{scrollX:s,scrollY:a}=t;os(i,r)?a-=r.top-e.top+n:ns(o,r)&&(a+=e.bottom-r.bottom+n),is(e,r)?s-=r.left-e.left+n:rs(e,r)&&(s+=e.right-r.right+n),t.scrollTo(s,a)}}function es(t,e){const n=ss(t);let o,i;for(;t!=n.document.body;)i=e(),(o=new Jr(t).excludeScrollbarsAndBorders()).contains(i)||(os(i,o)?t.scrollTop-=o.top-i.top:ns(i,o)&&(t.scrollTop+=i.bottom-o.bottom),is(i,o)?t.scrollLeft-=o.left-i.left:rs(i,o)&&(t.scrollLeft+=i.right-o.right)),t=t.parentNode}function ns(t,e){return t.bottom>e.bottom}function os(t,e){return t.top<e.top}function is(t,e){return t.left<e.left}function rs(t,e){return t.right>e.right}function ss(t){return Kr(t)?t.startContainer.ownerDocument.defaultView:t.ownerDocument.defaultView}function as(t){if(Kr(t)){let e=t.commonAncestorContainer;return Pi(e)&&(e=e.parentNode),e}return t.parentNode}function cs(t,e){const n=ss(t),o=new Jr(t);if(n===e)return o;{let t=n;for(;t!=e;){const e=t.frameElement,n=new Jr(e).excludeScrollbarsAndBorders();o.moveBy(n.left,n.top),t=t.parent}}return o}Object.assign({},{scrollViewportToShowTarget:Zr,scrollAncestorsToShowTarget:function(t){es(as(t),()=>new Jr(t))}});class ls{constructor(){this.document=new zo,this.domConverter=new zi,this._renderer=new Fi(this.domConverter,this.document.selection),this._renderer.bind("isFocused").to(this.document),this.domRoots=new Map,this._observers=new Map,this._ongoingChange=!1,this._renderingInProgress=!1,this._postFixersInProgress=!1,this._writer=new si(this.document),this.addObserver(Mr),this.addObserver(Wr),this.addObserver(Hr),this.addObserver(Nr),this.addObserver(qr),this.addObserver($r),function(t){t.document.on("keydown",Ci)}(this),oi(this),this.on("render",()=>{this._render(),this.document.fire("layoutChanged")})}attachDomRoot(t,e="main"){const n=this.document.getRoot(e);n._name=t.tagName.toLowerCase(),this.domRoots.set(e,t),this.domConverter.bindElements(t,n),this._renderer.markToSync("children",n),this._renderer.domDocuments.add(t.ownerDocument),n.on("change:children",(t,e)=>this._renderer.markToSync("children",e)),n.on("change:attributes",(t,e)=>this._renderer.markToSync("attributes",e)),n.on("change:text",(t,e)=>this._renderer.markToSync("text",e));for(const n of this._observers.values())n.observe(t,e)}getDomRoot(t="main"){return this.domRoots.get(t)}addObserver(t){let e=this._observers.get(t);if(e)return e;e=new t(this),this._observers.set(t,e);for(const[t,n]of this.domRoots)e.observe(n,t);return e.enable(),e}getObserver(t){return this._observers.get(t)}disableObservers(){for(const t of this._observers.values())t.disable()}enableObservers(){for(const t of this._observers.values())t.enable()}scrollToTheSelection(){const t=this.document.selection.getFirstRange();t&&Zr({target:this.domConverter.viewRangeToDom(t),viewportOffset:20})}focus(){if(!this.document.isFocused){const t=this.document.selection.editableElement;t?(this.domConverter.focus(t),this.render()):Ur.a.warn("view-focus-no-selection: There is no selection in any editable to focus.")}}change(t){if(this._renderingInProgress||this._postFixersInProgress)throw new m.b("cannot-change-view-tree: Attempting to make changes to the view when it is in incorrect state: rendering or post-fixers are in progress. This may cause some unexpected behaviour and inconsistency between the DOM and the view.");this._ongoingChange?t(this._writer):(this._ongoingChange=!0,t(this._writer),this._ongoingChange=!1,this._postFixersInProgress=!0,this.document._callPostFixers(this._writer),this._postFixersInProgress=!1,this.fire("render"))}render(){this.change(()=>{})}destroy(){for(const t of this._observers.values())t.destroy();this.stopListening()}_render(){this._renderingInProgress=!0,this.disableObservers(),this._renderer.render(),this.enableObservers(),this._renderingInProgress=!1}}function ds(t){return f(t)?In(t):new Map(t)}P(ls,xo);class us{constructor(t){this.parent=null,this._attrs=ds(t)}get index(){let t;if(!this.parent)return null;if(null===(t=this.parent.getChildIndex(this)))throw new m.b("model-node-not-found-in-parent: The node's parent does not contain this node.");return t}get startOffset(){let t;if(!this.parent)return null;if(null===(t=this.parent.getChildStartOffset(this)))throw new m.b("model-node-not-found-in-parent: The node's parent does not contain this node.");return t}get offsetSize(){return 1}get endOffset(){return this.parent?this.startOffset+this.offsetSize:null}get nextSibling(){const t=this.index;return null!==t&&this.parent.getChild(t+1)||null}get previousSibling(){const t=this.index;return null!==t&&this.parent.getChild(t-1)||null}get root(){let t=this;for(;t.parent;)t=t.parent;return t}get document(){return this.root==this?null:this.root.document||null}getPath(){const t=[];let e=this;for(;e.parent;)t.unshift(e.startOffset),e=e.parent;return t}getAncestors(t={includeSelf:!1,parentFirst:!1}){const e=[];let n=t.includeSelf?this:this.parent;for(;n;)e[t.parentFirst?"push":"unshift"](n),n=n.parent;return e}getCommonAncestor(t,e={}){const n=this.getAncestors(e),o=t.getAncestors(e);let i=0;for(;n[i]==o[i]&&n[i];)i++;return 0===i?null:n[i-1]}isBefore(t){if(this==t)return!1;if(this.root!==t.root)return!1;const e=this.getPath(),n=t.getPath(),o=En(e,n);switch(o){case"prefix":return!0;case"extension":return!1;default:return e[o]<n[o]}}isAfter(t){return this!=t&&(this.root===t.root&&!this.isBefore(t))}hasAttribute(t){return this._attrs.has(t)}getAttribute(t){return this._attrs.get(t)}getAttributes(){return this._attrs.entries()}getAttributeKeys(){return this._attrs.keys()}toJSON(){const t={};return this._attrs.size&&(t.attributes=[...this._attrs]),t}_clone(){return new us(this._attrs)}_remove(){this.parent._removeChildren(this.index)}_setAttribute(t,e){this._attrs.set(t,e)}_setAttributesTo(t){this._attrs=ds(t)}_removeAttribute(t){return this._attrs.delete(t)}_clearAttributes(){this._attrs.clear()}is(t){return"node"==t}}class hs extends us{constructor(t,e){super(e),this._data=t||""}get offsetSize(){return this.data.length}get data(){return this._data}is(t){return"text"==t||super.is(t)}toJSON(){const t=super.toJSON();return t.data=this.data,t}_clone(){return new hs(this.data,this.getAttributes())}static fromJSON(t){return new hs(t.data,t.attributes)}}class fs{constructor(t,e,n){if(this.textNode=t,e<0||e>t.offsetSize)throw new m.b("model-textproxy-wrong-offsetintext: Given offsetInText value is incorrect.");if(n<0||e+n>t.offsetSize)throw new m.b("model-textproxy-wrong-length: Given length value is incorrect.");this.data=t.data.substring(e,e+n),this.offsetInText=e}get startOffset(){return null!==this.textNode.startOffset?this.textNode.startOffset+this.offsetInText:null}get offsetSize(){return this.data.length}get endOffset(){return null!==this.startOffset?this.startOffset+this.offsetSize:null}get isPartial(){return this.offsetSize!==this.textNode.offsetSize}get parent(){return this.textNode.parent}get root(){return this.textNode.root}get document(){return this.textNode.document}is(t){return"textProxy"==t}getPath(){const t=this.textNode.getPath();return t.length>0&&(t[t.length-1]+=this.offsetInText),t}getAncestors(t={includeSelf:!1,parentFirst:!1}){const e=[];let n=t.includeSelf?this:this.parent;for(;n;)e[t.parentFirst?"push":"unshift"](n),n=n.parent;return e}hasAttribute(t){return this.textNode.hasAttribute(t)}getAttribute(t){return this.textNode.getAttribute(t)}getAttributes(){return this.textNode.getAttributes()}getAttributeKeys(){return this.textNode.getAttributeKeys()}}class ps{constructor(t){this._nodes=[],t&&this._insertNodes(0,t)}[Symbol.iterator](){return this._nodes[Symbol.iterator]()}get length(){return this._nodes.length}get maxOffset(){return this._nodes.reduce((t,e)=>t+e.offsetSize,0)}getNode(t){return this._nodes[t]||null}getNodeIndex(t){const e=this._nodes.indexOf(t);return-1==e?null:e}getNodeStartOffset(t){const e=this.getNodeIndex(t);return null===e?null:this._nodes.slice(0,e).reduce((t,e)=>t+e.offsetSize,0)}indexToOffset(t){if(t==this._nodes.length)return this.maxOffset;const e=this._nodes[t];if(!e)throw new m.b("model-nodelist-index-out-of-bounds: Given index cannot be found in the node list.");return this.getNodeStartOffset(e)}offsetToIndex(t){let e=0;for(const n of this._nodes){if(t>=e&&t<e+n.offsetSize)return this.getNodeIndex(n);e+=n.offsetSize}if(e!=t)throw new m.b("model-nodelist-offset-out-of-bounds: Given offset cannot be found in the node list.",{offset:t,nodeList:this});return this.length}_insertNodes(t,e){for(const t of e)if(!(t instanceof us))throw new m.b("model-nodelist-insertNodes-not-node: Trying to insert an object which is not a Node instance.");this._nodes.splice(t,0,...e)}_removeNodes(t,e=1){return this._nodes.splice(t,e)}toJSON(){return this._nodes.map(t=>t.toJSON())}}class ms extends us{constructor(t,e,n){super(e),this.name=t,this._children=new ps,n&&this._insertChild(0,n)}get childCount(){return this._children.length}get maxOffset(){return this._children.maxOffset}get isEmpty(){return 0===this.childCount}is(t,e=null){return e?"element"==t&&e==this.name:"element"==t||t==this.name||super.is(t)}getChild(t){return this._children.getNode(t)}getChildren(){return this._children[Symbol.iterator]()}getChildIndex(t){return this._children.getNodeIndex(t)}getChildStartOffset(t){return this._children.getNodeStartOffset(t)}offsetToIndex(t){return this._children.offsetToIndex(t)}getNodeByPath(t){let e=this;for(const n of t)e=e.getChild(e.offsetToIndex(n));return e}toJSON(){const t=super.toJSON();if(t.name=this.name,this._children.length>0){t.children=[];for(const e of this._children)t.children.push(e.toJSON())}return t}_clone(t=!1){const e=t?Array.from(this._children).map(t=>t._clone(!0)):null;return new ms(this.name,this.getAttributes(),e)}_appendChild(t){this._insertChild(this.childCount,t)}_insertChild(t,e){const n=function(t){if("string"==typeof t)return[new hs(t)];Mn(t)||(t=[t]);return Array.from(t).map(t=>"string"==typeof t?new hs(t):t instanceof fs?new hs(t.data,t.getAttributes()):t)}(e);for(const t of n)null!==t.parent&&t._remove(),t.parent=this;this._children._insertNodes(t,n)}_removeChildren(t,e=1){const n=this._children._removeNodes(t,e);for(const t of n)t.parent=null;return n}static fromJSON(t){let e=null;if(t.children){e=[];for(const n of t.children)n.name?e.push(ms.fromJSON(n)):e.push(hs.fromJSON(n))}return new ms(t.name,t.attributes,e)}}class gs{constructor(t={}){if(!t.boundaries&&!t.startPosition)throw new m.b("model-tree-walker-no-start-position: Neither boundaries nor starting position have been defined.");const e=t.direction||"forward";if("forward"!=e&&"backward"!=e)throw new m.b("model-tree-walker-unknown-direction: Only `backward` and `forward` direction allowed.",{direction:e});this.direction=e,this.boundaries=t.boundaries||null,t.startPosition?this.position=vs.createFromPosition(t.startPosition):this.position=vs.createFromPosition(this.boundaries["backward"==this.direction?"end":"start"]),this.singleCharacters=!!t.singleCharacters,this.shallow=!!t.shallow,this.ignoreElementEnd=!!t.ignoreElementEnd,this._boundaryStartParent=this.boundaries?this.boundaries.start.parent:null,this._boundaryEndParent=this.boundaries?this.boundaries.end.parent:null,this._visitedParent=this.position.parent}[Symbol.iterator](){return this}skip(t){let e,n,o,i;do{o=this.position,i=this._visitedParent,({done:e,value:n}=this.next())}while(!e&&t(n));e||(this.position=o,this._visitedParent=i)}next(){return"forward"==this.direction?this._next():this._previous()}_next(){const t=this.position,e=vs.createFromPosition(this.position),n=this._visitedParent;if(null===n.parent&&e.offset===n.maxOffset)return{done:!0};if(n===this._boundaryEndParent&&e.offset==this.boundaries.end.offset)return{done:!0};const o=e.textNode?e.textNode:e.nodeAfter;if(o instanceof ms)return this.shallow?e.offset++:(e.path.push(0),this._visitedParent=o),this.position=e,bs("elementStart",o,t,e,1);if(o instanceof hs){let i;if(this.singleCharacters)i=1;else{let t=o.endOffset;this._boundaryEndParent==n&&this.boundaries.end.offset<t&&(t=this.boundaries.end.offset),i=t-e.offset}const r=e.offset-o.startOffset,s=new fs(o,r,i);return e.offset+=i,this.position=e,bs("text",s,t,e,i)}return e.path.pop(),e.offset++,this.position=e,this._visitedParent=n.parent,this.ignoreElementEnd?this._next():bs("elementEnd",n,t,e)}_previous(){const t=this.position,e=vs.createFromPosition(this.position),n=this._visitedParent;if(null===n.parent&&0===e.offset)return{done:!0};if(n==this._boundaryStartParent&&e.offset==this.boundaries.start.offset)return{done:!0};const o=e.textNode?e.textNode:e.nodeBefore;if(o instanceof ms)return e.offset--,this.shallow?(this.position=e,bs("elementStart",o,t,e,1)):(e.path.push(o.maxOffset),this.position=e,this._visitedParent=o,this.ignoreElementEnd?this._previous():bs("elementEnd",o,t,e));if(o instanceof hs){let i;if(this.singleCharacters)i=1;else{let t=o.startOffset;this._boundaryStartParent==n&&this.boundaries.start.offset>t&&(t=this.boundaries.start.offset),i=e.offset-t}const r=e.offset-o.startOffset,s=new fs(o,r-i,i);return e.offset-=i,this.position=e,bs("text",s,t,e,i)}return e.path.pop(),this.position=e,this._visitedParent=n.parent,bs("elementStart",n,t,e,1)}}function bs(t,e,n,o,i){return{done:!1,value:{type:t,item:e,previousPosition:n,nextPosition:o,length:i}}}var ws=function(t){var e=t?t.length:0;return e?t[e-1]:void 0};class vs{constructor(t,e){if(!t.is("element")&&!t.is("documentFragment"))throw new m.b("model-position-root-invalid: Position root invalid.");if(!(e instanceof Array)||0===e.length)throw new m.b("model-position-path-incorrect: Position path must be an array with at least one item.",{path:e});e=t.getPath().concat(e),t=t.root,this.root=t,this.path=e}get offset(){return ws(this.path)}set offset(t){this.path[this.path.length-1]=t}get parent(){let t=this.root;for(let e=0;e<this.path.length-1;e++)t=t.getChild(t.offsetToIndex(this.path[e]));return t}get index(){return this.parent.offsetToIndex(this.offset)}get textNode(){const t=this.parent.getChild(this.index);return t instanceof hs&&t.startOffset<this.offset?t:null}get nodeAfter(){return null===this.textNode?this.parent.getChild(this.index):null}get nodeBefore(){return null===this.textNode?this.parent.getChild(this.index-1):null}get isAtStart(){return 0===this.offset}get isAtEnd(){return this.offset==this.parent.maxOffset}compareWith(t){if(this.root!=t.root)return"different";const e=En(this.path,t.path);switch(e){case"same":return"same";case"prefix":return"before";case"extension":return"after";default:return this.path[e]<t.path[e]?"before":"after"}}getLastMatchingPosition(t,e={}){e.startPosition=this;const n=new gs(e);return n.skip(t),n.position}getParentPath(){return this.path.slice(0,-1)}getAncestors(){return this.parent.is("documentFragment")?[this.parent]:this.parent.getAncestors({includeSelf:!0})}getCommonPath(t){if(this.root!=t.root)return[];const e=En(this.path,t.path),n="string"==typeof e?Math.min(this.path.length,t.path.length):e;return this.path.slice(0,n)}getCommonAncestor(t){const e=this.getAncestors(),n=t.getAncestors();let o=0;for(;e[o]==n[o]&&e[o];)o++;return 0===o?null:e[o-1]}getShiftedBy(t){const e=vs.createFromPosition(this),n=e.offset+t;return e.offset=n<0?0:n,e}isAfter(t){return"after"==this.compareWith(t)}isBefore(t){return"before"==this.compareWith(t)}isEqual(t){return"same"==this.compareWith(t)}isTouching(t){let e=null,n=null;switch(this.compareWith(t)){case"same":return!0;case"before":e=vs.createFromPosition(this),n=vs.createFromPosition(t);break;case"after":e=vs.createFromPosition(t),n=vs.createFromPosition(this);break;default:return!1}let o=e.parent;for(;e.path.length+n.path.length;){if(e.isEqual(n))return!0;if(e.path.length>n.path.length){if(e.offset!==o.maxOffset)return!1;e.path=e.path.slice(0,-1),o=o.parent,e.offset++}else{if(0!==n.offset)return!1;n.path=n.path.slice(0,-1)}}}_getTransformedByDeletion(t,e){const n=vs.createFromPosition(this);if(this.root!=t.root)return n;if("same"==En(t.getParentPath(),this.getParentPath())){if(t.offset<this.offset){if(t.offset+e>this.offset)return null;n.offset-=e}}else if("prefix"==En(t.getParentPath(),this.getParentPath())){const o=t.path.length-1;if(t.offset<=this.path[o]){if(t.offset+e>this.path[o])return null;n.path[o]-=e}}return n}_getTransformedByInsertion(t,e,n){const o=vs.createFromPosition(this);if(this.root!=t.root)return o;if("same"==En(t.getParentPath(),this.getParentPath()))(t.offset<this.offset||t.offset==this.offset&&n)&&(o.offset+=e);else if("prefix"==En(t.getParentPath(),this.getParentPath())){const n=t.path.length-1;t.offset<=this.path[n]&&(o.path[n]+=e)}return o}_getTransformedByMove(t,e,n,o,i){let r=this._getTransformedByDeletion(t,n);return e=e._getTransformedByDeletion(t,n),r=null===r||i&&r.isEqual(t)?this._getCombined(t,e):r._getTransformedByInsertion(e,n,o)}_getCombined(t,e){const n=t.path.length-1,o=vs.createFromPosition(e);return o.offset=o.offset+this.path[n]-t.offset,o.path=o.path.concat(this.path.slice(n+1)),o}static createAt(t,e){if(t instanceof vs)return this.createFromPosition(t);{const n=t;if("end"==e)e=n.maxOffset;else{if("before"==e)return this.createBefore(n);if("after"==e)return this.createAfter(n);e||(e=0)}return this.createFromParentAndOffset(n,e)}}static createAfter(t){if(!t.parent)throw new m.b("model-position-after-root: You cannot make a position after root.",{root:t});return this.createFromParentAndOffset(t.parent,t.endOffset)}static createBefore(t){if(!t.parent)throw new m.b("model-position-before-root: You cannot make a position before root.",{root:t});return this.createFromParentAndOffset(t.parent,t.startOffset)}static createFromParentAndOffset(t,e){if(!t.is("element")&&!t.is("documentFragment"))throw new m.b("model-position-parent-incorrect: Position parent have to be a element or document fragment.");const n=t.getPath();return n.push(e),new this(t.root,n)}static createFromPosition(t){return new this(t.root,t.path.slice())}static fromJSON(t,e){if("$graveyard"===t.root)return new vs(e.graveyard,t.path);if(!e.getRoot(t.root))throw new m.b("model-position-fromjson-no-root: Cannot create position for document. Root with specified name does not exist.",{rootName:t.root});return new vs(e.getRoot(t.root),t.path)}}class _s{constructor(t,e=null){this.start=vs.createFromPosition(t),this.end=e?vs.createFromPosition(e):vs.createFromPosition(t)}*[Symbol.iterator](){yield*new gs({boundaries:this,ignoreElementEnd:!0})}get isCollapsed(){return this.start.isEqual(this.end)}get isFlat(){return this.start.parent===this.end.parent}get root(){return this.start.root}containsPosition(t){return t.isAfter(this.start)&&t.isBefore(this.end)}containsRange(t,e=!1){t.isCollapsed&&(e=!1);const n=this.containsPosition(t.start)||e&&this.start.isEqual(t.start),o=this.containsPosition(t.end)||e&&this.end.isEqual(t.end);return n&&o}containsItem(t){const e=vs.createBefore(t);return this.containsPosition(e)||this.start.isEqual(e)}isEqual(t){return this.start.isEqual(t.start)&&this.end.isEqual(t.end)}isIntersecting(t){return this.start.isBefore(t.end)&&this.end.isAfter(t.start)}getDifference(t){const e=[];return this.isIntersecting(t)?(this.containsPosition(t.start)&&e.push(new _s(this.start,t.start)),this.containsPosition(t.end)&&e.push(new _s(t.end,this.end))):e.push(_s.createFromRange(this)),e}getIntersection(t){if(this.isIntersecting(t)){let e=this.start,n=this.end;return this.containsPosition(t.start)&&(e=t.start),this.containsPosition(t.end)&&(n=t.end),new _s(e,n)}return null}getMinimalFlatRanges(){const t=[],e=this.start.getCommonPath(this.end).length,n=vs.createFromPosition(this.start);let o=n.parent;for(;n.path.length>e+1;){const e=o.maxOffset-n.offset;0!==e&&t.push(new _s(n,n.getShiftedBy(e))),n.path=n.path.slice(0,-1),n.offset++,o=o.parent}for(;n.path.length<=this.end.path.length;){const e=this.end.path[n.path.length-1],o=e-n.offset;0!==o&&t.push(new _s(n,n.getShiftedBy(o))),n.offset=e,n.path.push(0)}return t}getWalker(t={}){return t.boundaries=this,new gs(t)}*getItems(t={}){t.boundaries=this,t.ignoreElementEnd=!0;const e=new gs(t);for(const t of e)yield t.item}*getPositions(t={}){t.boundaries=this;const e=new gs(t);yield e.position;for(const t of e)yield t.nextPosition}getTransformedByDelta(t){const e=[_s.createFromRange(this)],n=new Set(["insert","move","remove","reinsert"]);for(const o of t.operations)if(n.has(o.type))for(let n=0;n<e.length;n++){let i;i="insert"==o.type?e[n]._getTransformedByDocumentChange(o.type,t.type,o.position,o.nodes.maxOffset):e[n]._getTransformedByDocumentChange(o.type,t.type,o.targetPosition,o.howMany,o.sourcePosition),e.splice(n,1,...i),n+=i.length-1}return e}getTransformedByDeltas(t){const e=[_s.createFromRange(this)];for(const n of t)for(let t=0;t<e.length;t++){const o=e[t].getTransformedByDelta(n);e.splice(t,1,...o),t+=o.length-1}for(let t=0;t<e.length;t++){const n=e[t];for(let o=t+1;o<e.length;o++){const t=e[o];(n.containsRange(t)||t.containsRange(n)||n.isEqual(t))&&e.splice(o,1)}}return e}getCommonAncestor(){return this.start.getCommonAncestor(this.end)}_getTransformedByDocumentChange(t,e,n,o,i){if("insert"==t)return this._getTransformedByInsertion(n,o,!1,!1);{const t=_s.createFromPositionAndShift(i,o);if("merge"==e&&this.isCollapsed&&(this.start.isEqual(t.start)||this.start.isEqual(t.end))){const e=this.start.offset-t.start.offset;return[new _s(n.getShiftedBy(e))]}if("split"==e&&this.isCollapsed&&this.end.isEqual(t.end))return[new _s(n.getShiftedBy(o))];if((t.containsPosition(this.start)||t.start.isEqual(this.start))&&this.containsPosition(t.end)&&this.end.isAfter(n)){const t=this.start._getCombined(i,n._getTransformedByDeletion(i,o)),e=this.end._getTransformedByMove(i,n,o,!1,!1);return[new _s(t,e)]}if((t.containsPosition(this.end)||t.end.isEqual(this.end))&&this.containsPosition(t.start)&&this.start.isBefore(n)){const t=this.start._getTransformedByMove(i,n,o,!0,!1),e=this.end._getCombined(i,n._getTransformedByDeletion(i,o));return[new _s(t,e)]}return this._getTransformedByMove(i,n,o)}}_getTransformedByInsertion(t,e,n=!1,o=!1){if(n&&this.containsPosition(t))return[new _s(this.start,t),new _s(t._getTransformedByInsertion(t,e,!0),this.end._getTransformedByInsertion(t,e,this.isCollapsed))];{const n=_s.createFromRange(this),i=!o,r=!!n.isCollapsed||o;return n.start=n.start._getTransformedByInsertion(t,e,i),n.end=n.end._getTransformedByInsertion(t,e,r),[n]}}_getTransformedByMove(t,e,n){if(this.isCollapsed){const o=this.start._getTransformedByMove(t,e,n,!0,!1);return[new _s(o)]}let o;const i=new _s(t,t.getShiftedBy(n)),r=this.getDifference(i);let s=null;const a=this.getIntersection(i);1==r.length?s=new _s(r[0].start._getTransformedByDeletion(t,n),r[0].end._getTransformedByDeletion(t,n)):2==r.length&&(s=new _s(this.start,this.end._getTransformedByDeletion(t,n)));const c=e._getTransformedByDeletion(t,n);return o=s?s._getTransformedByInsertion(c,n,null!==a):[],a&&o.push(new _s(a.start._getCombined(i.start,c),a.end._getCombined(i.start,c))),o}static createFromPositionAndShift(t,e){const n=t,o=t.getShiftedBy(e);return e>0?new this(n,o):new this(o,n)}static createFromParentsAndOffsets(t,e,n,o){return new this(vs.createFromParentAndOffset(t,e),vs.createFromParentAndOffset(n,o))}static createFromRange(t){return new this(t.start,t.end)}static createIn(t){return this.createFromParentsAndOffsets(t,0,t,t.maxOffset)}static createOn(t){return this.createFromPositionAndShift(vs.createBefore(t),t.offsetSize)}static createCollapsedAt(t,e){const n=vs.createAt(t,e),o=vs.createFromPosition(n);return new _s(n,o)}static createFromRanges(t){if(0===t.length)throw new m.b("range-create-from-ranges-empty-array: At least one range has to be passed.");if(1==t.length)return this.createFromRange(t[0]);const e=t[0];t.sort((t,e)=>t.start.isAfter(e.start)?1:-1);const n=t.indexOf(e),o=new this(e.start,e.end);for(let e=n-1;e>=0&&t[e].end.isEqual(o.start);e++)o.start=vs.createFromPosition(t[e].start);for(let e=n+1;e<t.length&&t[e].start.isEqual(o.end);e++)o.end=vs.createFromPosition(t[e].end);return o}static fromJSON(t,e){return new this(vs.fromJSON(t.start,e),vs.fromJSON(t.end,e))}}class ks{constructor(){this._modelToViewMapping=new WeakMap,this._viewToModelMapping=new WeakMap,this._viewToModelLengthCallbacks=new Map,this._markerNameToElements=new Map,this.on("modelToViewPosition",(t,e)=>{if(e.viewPosition)return;const n=this._modelToViewMapping.get(e.modelPosition.parent);e.viewPosition=this._findPositionIn(n,e.modelPosition.offset)},{priority:"low"}),this.on("viewToModelPosition",(t,e)=>{if(e.modelPosition)return;let n=e.viewPosition.parent,o=this._viewToModelMapping.get(n);for(;!o;)n=n.parent,o=this._viewToModelMapping.get(n);const i=this._toModelOffset(e.viewPosition.parent,e.viewPosition.offset,n);e.modelPosition=vs.createFromParentAndOffset(o,i)},{priority:"low"})}bindElements(t,e){this._modelToViewMapping.set(t,e),this._viewToModelMapping.set(e,t)}unbindViewElement(t){const e=this.toModelElement(t);this._viewToModelMapping.delete(t),this._modelToViewMapping.get(e)==t&&this._modelToViewMapping.delete(e)}unbindModelElement(t){const e=this.toViewElement(t);this._modelToViewMapping.delete(t),this._viewToModelMapping.get(e)==t&&this._viewToModelMapping.delete(e)}bindElementToMarker(t,e){const n=this._markerNameToElements.get(e)||new Set;n.add(t),this._markerNameToElements.set(e,n)}unbindElementsFromMarkerName(t){this._markerNameToElements.delete(t)}clearBindings(){this._modelToViewMapping=new WeakMap,this._viewToModelMapping=new WeakMap,this._markerNameToElements=new Map}toModelElement(t){return this._viewToModelMapping.get(t)}toViewElement(t){return this._modelToViewMapping.get(t)}toModelRange(t){return new _s(this.toModelPosition(t.start),this.toModelPosition(t.end))}toViewRange(t){return new Vo(this.toViewPosition(t.start),this.toViewPosition(t.end))}toModelPosition(t){const e={viewPosition:t,mapper:this};return this.fire("viewToModelPosition",e),e.modelPosition}toViewPosition(t,e={isPhantom:!1}){const n={modelPosition:t,mapper:this,isPhantom:e.isPhantom};return this.fire("modelToViewPosition",n),n.viewPosition}markerNameToElements(t){const e=this._markerNameToElements.get(t);if(!e)return null;const n=new Set;for(const t of e)if(t.is("attributeElement"))for(const e of t.getElementsWithSameId())n.add(e);else n.add(t);return n}registerViewToModelLength(t,e){this._viewToModelLengthCallbacks.set(t,e)}_toModelOffset(t,e,n){if(n!=t){return this._toModelOffset(t.parent,t.index,n)+this._toModelOffset(t,e,t)}if(t.is("text"))return e;let o=0;for(let n=0;n<e;n++)o+=this.getModelLength(t.getChild(n));return o}getModelLength(t){if(this._viewToModelLengthCallbacks.get(t.name)){return this._viewToModelLengthCallbacks.get(t.name)(t)}if(this._viewToModelMapping.has(t))return 1;if(t.is("text"))return t.data.length;if(t.is("uiElement"))return 0;{let e=0;for(const n of t.getChildren())e+=this.getModelLength(n);return e}}_findPositionIn(t,e){let n,o=0,i=0,r=0;if(t.is("text"))return new Fo(t,e);for(;i<e;)n=t.getChild(r),i+=o=this.getModelLength(n),r++;return i==e?this._moveViewPositionToTextNode(new Fo(t,r)):this._findPositionIn(n,e-(i-o))}_moveViewPositionToTextNode(t){const e=t.nodeBefore,n=t.nodeAfter;return e instanceof On?new Fo(e,e.data.length):n instanceof On?new Fo(n,0):t}}P(ks,y);class ys{constructor(){this._consumable=new Map,this._textProxyRegistry=new Map}add(t,e){e=xs(e),t instanceof fs&&(t=this._getSymbolForTextProxy(t)),this._consumable.has(t)||this._consumable.set(t,new Map),this._consumable.get(t).set(e,!0)}consume(t,e){return e=xs(e),t instanceof fs&&(t=this._getSymbolForTextProxy(t)),!!this.test(t,e)&&(this._consumable.get(t).set(e,!1),!0)}test(t,e){e=xs(e),t instanceof fs&&(t=this._getSymbolForTextProxy(t));const n=this._consumable.get(t);if(void 0===n)return null;const o=n.get(e);return void 0===o?null:o}revert(t,e){e=xs(e),t instanceof fs&&(t=this._getSymbolForTextProxy(t));const n=this.test(t,e);return!1===n?(this._consumable.get(t).set(e,!0),!0):!0!==n&&null}_getSymbolForTextProxy(t){let e=null;const n=this._textProxyRegistry.get(t.startOffset);if(n){const o=n.get(t.endOffset);o&&(e=o.get(t.parent))}return e||(e=this._addSymbolForTextProxy(t.startOffset,t.endOffset,t.parent)),e}_addSymbolForTextProxy(t,e,n){const o=Symbol("textProxySymbol");let i,r;return(i=this._textProxyRegistry.get(t))||(i=new Map,this._textProxyRegistry.set(t,i)),(r=i.get(e))||(r=new Map,i.set(e,r)),r.set(n,o),o}}function xs(t){const e=t.split(":");return e.length>1?e[0]+":"+e[1]:e[0]}class As{constructor(t={}){this.conversionApi=wo({dispatcher:this},t)}convertChanges(t,e){for(const n of t.getMarkersToRemove())this.convertMarkerRemove(n.name,n.range,e);for(const n of t.getChanges())"insert"==n.type?this.convertInsert(_s.createFromPositionAndShift(n.position,n.length),e):"remove"==n.type?this.convertRemove(n.position,n.length,n.name,e):this.convertAttribute(n.range,n.attributeKey,n.attributeOldValue,n.attributeNewValue,e);for(const n of t.getMarkersToAdd())this.convertMarkerAdd(n.name,n.range,e)}convertInsert(t,e){this.conversionApi.writer=e,this.conversionApi.consumable=this._createInsertConsumable(t);for(const e of t){const t=e.item,n={item:t,range:_s.createFromPositionAndShift(e.previousPosition,e.length)};this._testAndFire("insert",n);for(const e of t.getAttributeKeys())n.attributeKey=e,n.attributeOldValue=null,n.attributeNewValue=t.getAttribute(e),this._testAndFire(`attribute:${e}`,n)}this._clearConversionApi()}convertRemove(t,e,n,o){this.conversionApi.writer=o,this.fire("remove:"+n,{position:t,length:e},this.conversionApi),this._clearConversionApi()}convertAttribute(t,e,n,o,i){this.conversionApi.writer=i,this.conversionApi.consumable=this._createConsumableForRange(t,`attribute:${e}`);for(const i of t){const t={item:i.item,range:_s.createFromPositionAndShift(i.previousPosition,i.length),attributeKey:e,attributeOldValue:n,attributeNewValue:o};this._testAndFire(`attribute:${e}`,t)}this._clearConversionApi()}convertSelection(t,e,n){const o=Array.from(e.getMarkersAtPosition(t.getFirstPosition()));if(this.conversionApi.writer=n,this.conversionApi.consumable=this._createSelectionConsumable(t,o),this.fire("selection",{selection:t},this.conversionApi),t.isCollapsed){for(const e of o){const n=e.getRange();if(!Cs(t.getFirstPosition(),e,this.conversionApi.mapper))continue;const o={item:t,markerName:e.name,markerRange:n};this.conversionApi.consumable.test(t,"addMarker:"+e.name)&&this.fire("addMarker:"+e.name,o,this.conversionApi)}for(const e of t.getAttributeKeys()){const n={item:t,range:t.getFirstRange(),attributeKey:e,attributeOldValue:null,attributeNewValue:t.getAttribute(e)};this.conversionApi.consumable.test(t,"attribute:"+n.attributeKey)&&this.fire("attribute:"+n.attributeKey,n,this.conversionApi)}this._clearConversionApi()}}convertMarkerAdd(t,e,n){if(!e.root.document||"$graveyard"==e.root.rootName)return;this.conversionApi.writer=n;const o="addMarker:"+t;if(e.isCollapsed){const n=new ys;return n.add(e,o),this.conversionApi.consumable=n,void this.fire(o,{markerName:t,markerRange:e},this.conversionApi)}this.conversionApi.consumable=this._createConsumableForRange(e,o);for(const n of e.getItems()){if(!this.conversionApi.consumable.test(n,o))continue;const i={item:n,range:_s.createOn(n),markerName:t,markerRange:e};this.fire(o,i,this.conversionApi)}this._clearConversionApi()}convertMarkerRemove(t,e,n){e.root.document&&"$graveyard"!=e.root.rootName&&(this.conversionApi.writer=n,this.fire("removeMarker:"+t,{markerName:t,markerRange:e},this.conversionApi),this._clearConversionApi())}_createInsertConsumable(t){const e=new ys;for(const n of t){const t=n.item;e.add(t,"insert");for(const n of t.getAttributeKeys())e.add(t,"attribute:"+n)}return e}_createConsumableForRange(t,e){const n=new ys;for(const o of t.getItems())n.add(o,e);return n}_createSelectionConsumable(t,e){const n=new ys;n.add(t,"selection");for(const o of e)n.add(t,"addMarker:"+o.name);for(const e of t.getAttributeKeys())n.add(t,"attribute:"+e);return n}_testAndFire(t,e){if(!this.conversionApi.consumable.test(e.item,t))return;const n=e.item.name||"$text";this.fire(t+":"+n,e,this.conversionApi)}_clearConversionApi(){delete this.conversionApi.writer,delete this.conversionApi.consumable}}function Cs(t,e,n){const o=e.getRange(),i=Array.from(t.getAncestors());return i.shift(),i.reverse(),!i.some(t=>{if(o.containsItem(t)){return!!n.toViewElement(t).getCustomProperty("addHighlight")}})}P(As,y);class Ts{constructor(t,e,n){this._lastRangeBackward=!1,this._ranges=[],this._attrs=new Map,t&&this.setTo(t,e,n)}get anchor(){if(this._ranges.length>0){const t=this._ranges[this._ranges.length-1];return this._lastRangeBackward?t.end:t.start}return null}get focus(){if(this._ranges.length>0){const t=this._ranges[this._ranges.length-1];return this._lastRangeBackward?t.start:t.end}return null}get isCollapsed(){return 1===this._ranges.length&&this._ranges[0].isCollapsed}get rangeCount(){return this._ranges.length}get isBackward(){return!this.isCollapsed&&this._lastRangeBackward}isEqual(t){if(this.rangeCount!=t.rangeCount)return!1;if(0===this.rangeCount)return!0;if(!this.anchor.isEqual(t.anchor)||!this.focus.isEqual(t.focus))return!1;for(const e of this._ranges){let n=!1;for(const o of t._ranges)if(e.isEqual(o)){n=!0;break}if(!n)return!1}return!0}*getRanges(){for(const t of this._ranges)yield _s.createFromRange(t)}getFirstRange(){let t=null;for(const e of this._ranges)t&&!e.start.isBefore(t.start)||(t=e);return t?_s.createFromRange(t):null}getLastRange(){let t=null;for(const e of this._ranges)t&&!e.end.isAfter(t.end)||(t=e);return t?_s.createFromRange(t):null}getFirstPosition(){const t=this.getFirstRange();return t?vs.createFromPosition(t.start):null}getLastPosition(){const t=this.getLastRange();return t?vs.createFromPosition(t.end):null}setTo(t,e,n){if(null===t)this._setRanges([]);else if(t instanceof Ts)this._setRanges(t.getRanges(),t.isBackward);else if(t&&"function"==typeof t.getRanges)this._setRanges(t.getRanges(),t.isBackward);else if(t instanceof _s)this._setRanges([t],!!e&&!!e.backward);else if(t instanceof vs)this._setRanges([new _s(t)]);else if(t instanceof us){const o=!!n&&!!n.backward;let i;if("in"==e)i=_s.createIn(t);else if("on"==e)i=_s.createOn(t);else{if(void 0===e)throw new m.b("model-selection-setTo-required-second-parameter: selection.setTo requires the second parameter when the first parameter is a node.");i=_s.createCollapsedAt(t,e)}this._setRanges([i],o)}else{if(!Mn(t))throw new m.b("model-selection-setTo-not-selectable: Cannot set selection to given place.");this._setRanges(t,e&&!!e.backward)}}_setRanges(t,e=!1){const n=(t=Array.from(t)).some(t=>{if(!(t instanceof _s))throw new m.b("model-selection-added-not-range: Trying to add an object that is not an instance of Range.");return this._ranges.every(e=>!e.isEqual(t))});if(t.length!==this._ranges.length||n){this._removeAllRanges();for(const e of t)this._pushRange(e);this._lastRangeBackward=!!e,this.fire("change:range",{directChange:!0})}}setFocus(t,e){if(null===this.anchor)throw new m.b("model-selection-setFocus-no-ranges: Cannot set selection focus if there are no ranges in selection.");const n=vs.createAt(t,e);if("same"==n.compareWith(this.focus))return;const o=this.anchor;this._ranges.length&&this._popRange(),"before"==n.compareWith(o)?(this._pushRange(new _s(n,o)),this._lastRangeBackward=!0):(this._pushRange(new _s(o,n)),this._lastRangeBackward=!1),this.fire("change:range",{directChange:!0})}getAttribute(t){return this._attrs.get(t)}getAttributes(){return this._attrs.entries()}getAttributeKeys(){return this._attrs.keys()}hasAttribute(t){return this._attrs.has(t)}removeAttribute(t){this.hasAttribute(t)&&(this._attrs.delete(t),this.fire("change:attribute",{attributeKeys:[t],directChange:!0}))}setAttribute(t,e){this.getAttribute(t)!==e&&(this._attrs.set(t,e),this.fire("change:attribute",{attributeKeys:[t],directChange:!0}))}getSelectedElement(){if(1!==this.rangeCount)return null;const t=this.getFirstRange(),e=t.start.nodeAfter,n=t.end.nodeBefore;return e instanceof ms&&e==n?e:null}*getSelectedBlocks(){const t=new WeakSet;for(const e of this.getRanges()){const n=Es(e.start,t);n&&(yield n);for(const n of e.getWalker())"elementEnd"==n.type&&Ss(n.item,t)&&(yield n.item);const o=Es(e.end,t);o&&!e.end.isTouching(vs.createAt(o))&&(yield o)}}containsEntireContent(t=this.anchor.root){const e=vs.createAt(t),n=vs.createAt(t,"end");return e.isTouching(this.getFirstPosition())&&n.isTouching(this.getLastPosition())}_pushRange(t){this._checkRange(t),this._ranges.push(_s.createFromRange(t))}_checkRange(t){for(let e=0;e<this._ranges.length;e++)if(t.isIntersecting(this._ranges[e]))throw new m.b("model-selection-range-intersects: Trying to add a range that intersects with another range from selection.",{addedRange:t,intersectingRange:this._ranges[e]})}_removeAllRanges(){for(;this._ranges.length>0;)this._popRange()}_popRange(){this._ranges.pop()}}function Ss(t,e){return!e.has(t)&&(e.add(t),t.document.model.schema.isBlock(t)&&t.parent)}function Es(t,e){const n=t.parent.getAncestors({parentFirst:!0,includeSelf:!0}),o=n.find(t=>Ss(t,e));return n.forEach(t=>e.add(t)),o}P(Ts,y);class Ps extends _s{constructor(t,e){super(t,e),function(){const t=new Set(["insert","move","remove","reinsert"]);this.listenTo(this.root.document.model,"applyOperation",(e,n)=>{const o=n[0];o.isDocumentOperation&&t.has(o.type)&&function(t){const e=t.type,n=t.delta.batch;let o,i;"insert"==e?o=_s.createFromPositionAndShift(t.position,t.nodes.maxOffset):(o=_s.createFromPositionAndShift(t.getMovedRangeStart(),t.howMany),i=t.sourcePosition);const r=o.end.offset-o.start.offset;let s=o.start;"move"!=e&&"remove"!=e&&"reinsert"!=e||(s=s._getTransformedByInsertion(i,r));const a=this._getTransformedByDocumentChange(e,t.delta.type,s,r,i);"move"!=e&&"remove"!=e&&"reinsert"!=e||3!=a.length||(a[2]=o);const c=_s.createFromRanges(a),l=!c.isEqual(this),d=this.containsPosition(s),u=i&&(this.containsPosition(i)||this.start.isEqual(i)),h=d||u;if(l){const t=_s.createFromRange(this);this.start=c.start,this.end=c.end,this.fire("change:range",t,{type:e,batch:n,range:o,sourcePosition:i})}else h&&this.fire("change:content",_s.createFromRange(this),{type:e,batch:n,range:o,sourcePosition:i})}.call(this,o)},{priority:"low"})}.call(this)}detach(){this.stopListening()}}P(Ps,y);const Os="selection:";class Rs{constructor(t){this._selection=new Is(t),this._selection.delegate("change:range").to(this),this._selection.delegate("change:attribute").to(this)}get isCollapsed(){return this._selection.isCollapsed}get anchor(){return this._selection.anchor}get focus(){return this._selection.focus}get rangeCount(){return this._selection.rangeCount}get hasOwnRange(){return this._selection.hasOwnRange}get isBackward(){return this._selection.isBackward}get isGravityOverridden(){return this._selection.isGravityOverridden}get _ranges(){return this._selection._ranges}getRanges(){return this._selection.getRanges()}getFirstPosition(){return this._selection.getFirstPosition()}getLastPosition(){return this._selection.getLastPosition()}getFirstRange(){return this._selection.getFirstRange()}getLastRange(){return this._selection.getLastRange()}getSelectedBlocks(){return this._selection.getSelectedBlocks()}getSelectedElement(){return this._selection.getSelectedElement()}containsEntireContent(t){return this._selection.containsEntireContent(t)}destroy(){this._selection.destroy()}getAttributeKeys(){return this._selection.getAttributeKeys()}getAttributes(){return this._selection.getAttributes()}getAttribute(t){return this._selection.getAttribute(t)}hasAttribute(t){return this._selection.hasAttribute(t)}_setFocus(t,e){this._selection.setFocus(t,e)}_setTo(t,e,n){this._selection.setTo(t,e,n)}_setAttribute(t,e){this._selection.setAttribute(t,e)}_removeAttribute(t){this._selection.removeAttribute(t)}_getStoredAttributes(){return this._selection._getStoredAttributes()}_overrideGravity(){return this._selection.overrideGravity()}_restoreGravity(t){this._selection.restoreGravity(t)}static _getStoreAttributeKey(t){return Os+t}static _isStoreAttributeKey(t){return t.startsWith(Os)}}P(Rs,y);class Is extends Ts{constructor(t){super(),this._model=t.model,this._document=t,this._attributePriority=new Map,this._fixGraveyardRangesData=[],this._hasChangedRange=!1,this._overriddenGravityRegister=new Set,this.on("change:range",()=>{for(const t of this.getRanges())if(!this._document._validateSelectionRange(t))throw new m.b("document-selection-wrong-position: Range from document selection starts or ends at incorrect position.",{range:t})}),this.listenTo(this._document,"change",(t,e)=>{this._updateAttributes(!1),function(t,e){const n=t.document.differ;for(const o of n.getChanges()){if("insert"!=o.type)continue;const n=o.position.parent,i=o.length===n.maxOffset;i&&t.enqueueChange(e,t=>{const e=Array.from(n.getAttributeKeys()).filter(t=>t.startsWith(Os));for(const o of e)t.removeAttribute(o,n)})}}(this._model,e)}),this.listenTo(this._model,"applyOperation",()=>{for(;this._fixGraveyardRangesData.length;){const{liveRange:t,sourcePosition:e}=this._fixGraveyardRangesData.shift();this._fixGraveyardSelection(t,e)}this._hasChangedRange&&(this._hasChangedRange=!1,this.fire("change:range",{directChange:!1}))},{priority:"lowest"})}get isCollapsed(){return 0===this._ranges.length?this._document._getDefaultRange().isCollapsed:super.isCollapsed}get anchor(){return super.anchor||this._document._getDefaultRange().start}get focus(){return super.focus||this._document._getDefaultRange().end}get rangeCount(){return this._ranges.length?this._ranges.length:1}get hasOwnRange(){return this._ranges.length>0}get isGravityOverridden(){return!!this._overriddenGravityRegister.size}destroy(){for(let t=0;t<this._ranges.length;t++)this._ranges[t].detach();this.stopListening()}*getRanges(){this._ranges.length?yield*super.getRanges():yield this._document._getDefaultRange()}getFirstRange(){return super.getFirstRange()||this._document._getDefaultRange()}getLastRange(){return super.getLastRange()||this._document._getDefaultRange()}setTo(t,e,n){super.setTo(t,e,n),this._refreshAttributes()}setFocus(t,e){super.setFocus(t,e),this._refreshAttributes()}setAttribute(t,e){if(this._setAttribute(t,e)){const e=[t];this.fire("change:attribute",{attributeKeys:e,directChange:!0})}}removeAttribute(t){if(this._removeAttribute(t)){const e=[t];this.fire("change:attribute",{attributeKeys:e,directChange:!0})}}overrideGravity(){const t=w();return this._overriddenGravityRegister.add(t),1===this._overriddenGravityRegister.size&&this._refreshAttributes(),t}restoreGravity(t){if(!this._overriddenGravityRegister.has(t))throw new m.b("document-selection-gravity-wrong-restore: Attempting to restore the selection gravity for an unknown UID.",{uid:t});this._overriddenGravityRegister.delete(t),this.isGravityOverridden||this._refreshAttributes()}_refreshAttributes(){this._updateAttributes(!0)}_popRange(){this._ranges.pop().detach()}_pushRange(t){const e=this._prepareRange(t);e&&this._ranges.push(e)}_prepareRange(t){if(this._checkRange(t),t.root==this._document.graveyard)return void Ur.a.warn("model-selection-range-in-graveyard: Trying to add a Range that is in the graveyard root. Range rejected.");const e=Ps.createFromRange(t);return e.on("change:range",(t,n,o)=>{this._hasChangedRange=!0,e.root==this._document.graveyard&&this._fixGraveyardRangesData.push({liveRange:e,sourcePosition:o.sourcePosition})}),e}_updateAttributes(t){const e=ds(this._getSurroundingAttributes()),n=ds(this.getAttributes());if(t)this._attributePriority=new Map,this._attrs=new Map;else for(const[t,e]of this._attributePriority)"low"==e&&(this._attrs.delete(t),this._attributePriority.delete(t));this._setAttributesTo(e);const o=[];for(const[t,e]of this.getAttributes())n.has(t)&&n.get(t)===e||o.push(t);for(const[t]of n)this.hasAttribute(t)||o.push(t);o.length>0&&this.fire("change:attribute",{attributeKeys:o,directChange:!1})}_setAttribute(t,e,n=!0){const o=n?"normal":"low";return("low"!=o||"normal"!=this._attributePriority.get(t))&&(super.getAttribute(t)!==e&&(this._attrs.set(t,e),this._attributePriority.set(t,o),!0))}_removeAttribute(t,e=!0){const n=e?"normal":"low";return("low"!=n||"normal"!=this._attributePriority.get(t))&&(this._attributePriority.set(t,n),!!super.hasAttribute(t)&&(this._attrs.delete(t),!0))}_setAttributesTo(t){const e=new Set;for(const[e,n]of this.getAttributes())t.get(e)!==n&&this._removeAttribute(e,!1);for(const[n,o]of t){this._setAttribute(n,o,!1)&&e.add(n)}return e}*_getStoredAttributes(){const t=this.getFirstPosition().parent;if(this.isCollapsed&&t.isEmpty)for(const e of t.getAttributeKeys())if(e.startsWith(Os)){yield[e.substr(Os.length),t.getAttribute(e)]}}_getSurroundingAttributes(){const t=this.getFirstPosition(),e=this._model.schema;let n=null;if(this.isCollapsed){const e=t.textNode?t.textNode:t.nodeBefore,o=t.textNode?t.textNode:t.nodeAfter;if(this.isGravityOverridden||(n=Ms(e)),n||(n=Ms(o)),!this.isGravityOverridden&&!n){let t=e;for(;t&&!n;)n=Ms(t=t.previousSibling)}if(!n){let t=o;for(;t&&!n;)n=Ms(t=t.nextSibling)}n||(n=this._getStoredAttributes())}else{const t=this.getFirstRange();for(const o of t){if(o.item.is("element")&&e.isObject(o.item))break;"text"==o.type&&null===n&&(n=o.item.getAttributes())}}return n}_fixGraveyardSelection(t,e){const n=vs.createFromPosition(e),o=this._model.schema.getNearestSelectionRange(n),i=this._ranges.indexOf(t);if(this._ranges.splice(i,1),t.detach(),o){const t=this._prepareRange(o);this._ranges.splice(i,0,t)}}}function Ms(t){return t instanceof fs||t instanceof hs?t.getAttributes():null}var Fs=function(t){return Tn(t,!0,!0)};function Vs(t){return(t=Fs(t)).view=Bs(t.view,"container"),e=>{e.on("insert:"+t.model,function(t){return(e,n,o)=>{const i=t(n.item,o.writer);if(!i)return;if(!o.consumable.consume(n.item,"insert"))return;const r=o.mapper.toViewPosition(n.range.start);o.mapper.bindElements(n.item,i),o.writer.insert(r,i)}}(t.view),{priority:t.converterPriority||"normal"})}}function Ns(t){let e="attribute:"+((t=Fs(t)).model.key?t.model.key:t.model);if(t.model.name&&(e+=":"+t.model.name),t.model.values)for(const e of t.model.values)t.view[e]=Bs(t.view[e],"attribute");else t.view=Bs(t.view,"attribute");const n=Ls(t);return o=>{o.on(e,function(t){return(e,n,o)=>{const i=t(n.attributeOldValue,o.writer),r=t(n.attributeNewValue,o.writer);if(!i&&!r)return;if(!o.consumable.consume(n.item,e.name))return;const s=o.writer,a=s.document.selection;if(n.item instanceof Ts||n.item instanceof Rs)s.wrap(a.getFirstRange(),r);else{let t=o.mapper.toViewRange(n.range);null!==n.attributeOldValue&&i&&(t=s.unwrap(t,i)),null!==n.attributeNewValue&&r&&s.wrap(t,r)}}}(n),{priority:t.converterPriority||"normal"})}}function Ds(t){let e="attribute:"+((t=Fs(t)).model.key?t.model.key:t.model);if(t.model.name&&(e+=":"+t.model.name),t.model.values)for(const e of t.model.values)t.view[e]=js(t.view[e]);else t.view=js(t.view);const n=Ls(t);return o=>{o.on(e,function(t){return t=t||((t,e)=>({value:t,key:e.attributeKey})),(e,n,o)=>{const i=t(n.attributeOldValue,n),r=t(n.attributeNewValue,n);if(!i&&!r)return;if(!o.consumable.consume(n.item,e.name))return;const s=o.mapper.toViewElement(n.item),a=o.writer;if(null!==n.attributeOldValue&&i)if("class"==i.key){const t=Array.isArray(i.value)?i.value:[i.value];for(const e of t)a.removeClass(e,s)}else if("style"==i.key){const t=Object.keys(i.value);for(const e of t)a.removeStyle(e,s)}else a.removeAttribute(i.key,s);if(null!==n.attributeNewValue&&r)if("class"==r.key){const t=Array.isArray(r.value)?r.value:[r.value];for(const e of t)a.addClass(e,s)}else if("style"==r.key){const t=Object.keys(r.value);for(const e of t)a.setStyle(e,r.value[e],s)}else a.setAttribute(r.key,r.value,s)}}(n),{priority:t.converterPriority||"normal"})}}function Bs(t,e){return"function"==typeof t?t:(n,o)=>(function(t,e,n){"string"==typeof t&&(t={name:t});let o;const i=Object.assign({},t.attributes);if("container"==n)o=e.createContainerElement(t.name,i);else if("attribute"==n){const n={priority:t.priority||Uo.DEFAULT_PRIORITY};o=e.createAttributeElement(t.name,i,n)}else o=e.createUIElement(t.name,i);if(t.styles){const n=Object.keys(t.styles);for(const i of n)e.setStyle(i,t.styles[i],o)}if(t.classes){const n=t.classes;if("string"==typeof n)e.addClass(n,o);else for(const t of n)e.addClass(t,o)}return o})(t,o,e)}function Ls(t){return t.model.values?(e,n)=>{const o=t.view[e];return o?o(e,n):null}:t.view}function js(t){return"string"==typeof t?e=>({key:t,value:e}):"object"==typeof t?t.value?()=>t:e=>({key:t.key,value:e}):t}class zs{constructor(t){this.model=t,this.view=new ls,this.mapper=new ks,this.downcastDispatcher=new As({mapper:this.mapper});const e=this.model.document,n=e.selection,o=this.model.markers;this.listenTo(e,"change",()=>{this.view.change(t=>{this.downcastDispatcher.convertChanges(e.differ,t),this.downcastDispatcher.convertSelection(n,o,t)})},{priority:"low"}),this.listenTo(this.view.document,"selectionChange",function(t,e){return(n,o)=>{const i=o.newSelection,r=new Ts,s=[];for(const t of i.getRanges())s.push(e.toModelRange(t));r.setTo(s,{backward:i.isBackward}),r.isEqual(t.document.selection)||t.change(t=>{t.setSelection(r)})}}(this.model,this.mapper)),this.downcastDispatcher.on("insert:$text",(t,e,n)=>{if(!n.consumable.consume(e.item,"insert"))return;const o=n.writer,i=n.mapper.toViewPosition(e.range.start),r=o.createText(e.item.data);o.insert(i,r)},{priority:"lowest"}),this.downcastDispatcher.on("remove",(t,e,n)=>{const o=n.mapper.toViewPosition(e.position),i=e.position.getShiftedBy(e.length),r=n.mapper.toViewPosition(i,{isPhantom:!0}),s=new Vo(o,r),a=n.writer.remove(s.getTrimmed());for(const t of Vo.createIn(a).getItems())n.mapper.unbindViewElement(t)},{priority:"low"}),this.downcastDispatcher.on("selection",(t,e,n)=>{const o=n.writer,i=o.document.selection;for(const t of i.getRanges())t.isCollapsed&&t.end.parent.document&&n.writer.mergeAttributes(t.start);o.setSelection(null)},{priority:"low"}),this.downcastDispatcher.on("selection",(t,e,n)=>{const o=e.selection;if(o.isCollapsed)return;if(!n.consumable.consume(o,"selection"))return;const i=[];for(const t of o.getRanges()){const e=n.mapper.toViewRange(t);i.push(e)}n.writer.setSelection(i,{backward:o.isBackward})},{priority:"low"}),this.downcastDispatcher.on("selection",(t,e,n)=>{const o=e.selection;if(!o.isCollapsed)return;if(!n.consumable.consume(o,"selection"))return;const i=n.writer,r=o.getFirstPosition(),s=n.mapper.toViewPosition(r),a=i.breakAttributes(s);i.setSelection(a)},{priority:"low"}),this.view.document.roots.bindTo(this.model.document.roots).using(t=>{if("$graveyard"==t.rootName)return null;const e=new Io(t.name);return e.rootName=t.rootName,e._document=this.view.document,this.mapper.bindElements(t,e),e})}destroy(){this.view.destroy(),this.stopListening()}}P(zs,xo);class qs{constructor(t,e=[]){this._editor=t,this._availablePlugins=new Map,this._plugins=new Map;for(const t of e)this._availablePlugins.set(t,t),t.pluginName&&this._availablePlugins.set(t.pluginName,t)}*[Symbol.iterator](){for(const t of this._plugins)"function"==typeof t[0]&&(yield t)}get(t){return this._plugins.get(t)}load(t,e=[]){const n=this,o=this._editor,i=new Set,r=[],s=u(t),a=u(e),c=function(t){const e=[];for(const n of t)d(n)||e.push(n);return e.length?e:null}(t);if(c){const t="plugincollection-plugin-not-found: Some plugins are not available and could not be loaded.";return Ur.a.error(t,{plugins:c}),Promise.reject(new m.b(t,{plugins:c}))}return Promise.all(s.map(l)).then(()=>r);function l(t){if(!a.includes(t)&&!n.get(t)&&!i.has(t))return function(t){return new Promise(s=>{i.add(t),t.requires&&t.requires.forEach(n=>{const o=d(n);if(e.includes(o))throw new m.b("plugincollection-required: Cannot load a plugin because one of its dependencies is listed inthe `removePlugins` option.",{plugin:o,requiredBy:t});l(o)});const a=new t(o);n._add(t,a),r.push(a),s()})}(t).catch(e=>{throw Ur.a.error("plugincollection-load: It was not possible to load the plugin.",{plugin:t}),e})}function d(t){return"function"==typeof t?t:n._availablePlugins.get(t)}function u(t){return t.map(t=>d(t)).filter(t=>!!t)}}destroy(){const t=Array.from(this).map(([,t])=>t).filter(t=>"function"==typeof t.destroy).map(t=>t.destroy());return Promise.all(t)}_add(t,e){this._plugins.set(t,e);const n=t.pluginName;n&&(this._plugins.has(n)?Ur.a.warn("plugincollection-plugin-name-conflict: Two plugins with the same name were loaded.",{pluginName:n,plugin1:this._plugins.get(n).constructor,plugin2:t}):this._plugins.set(n,e))}}class Us{constructor(){this._commands=new Map}add(t,e){this._commands.set(t,e)}get(t){return this._commands.get(t)}execute(t,...e){const n=this.get(t);if(!n)throw new m.b("commandcollection-command-not-found: Command does not exist.",{commandName:t});n.execute(...e)}*names(){yield*this._commands.keys()}*commands(){yield*this._commands.values()}[Symbol.iterator](){return this._commands[Symbol.iterator]()}destroy(){for(const t of this.commands())t.destroy()}}function Ws(t,e){const n=Object.keys(window.CKEDITOR_TRANSLATIONS).length;return 1===n&&(t=Object.keys(window.CKEDITOR_TRANSLATIONS)[0]),0!==n&&function(t,e){return t in window.CKEDITOR_TRANSLATIONS&&e in window.CKEDITOR_TRANSLATIONS[t]}(t,e)?window.CKEDITOR_TRANSLATIONS[t][e].replace(/ \[context: [^\]]+\]$/,""):e.replace(/ \[context: [^\]]+\]$/,"")}window.CKEDITOR_TRANSLATIONS||(window.CKEDITOR_TRANSLATIONS={});class Hs{constructor(t){this.language=t||"en",this.t=((...t)=>this._t(...t))}_t(t,e){let n=Ws(this.language,t);return e&&(n=n.replace(/%(\d+)/g,(t,n)=>n<e.length?e[n]:t)),n}}class $s{constructor(){this._consumables=new Map}add(t,e){let n;t.is("text")||t.is("documentFragment")?this._consumables.set(t,!0):(this._consumables.has(t)?n=this._consumables.get(t):(n=new Ks,this._consumables.set(t,n)),n.add(e))}test(t,e){const n=this._consumables.get(t);return void 0===n?null:t.is("text")||t.is("documentFragment")?n:n.test(e)}consume(t,e){return!!this.test(t,e)&&(t.is("text")||t.is("documentFragment")?this._consumables.set(t,!1):this._consumables.get(t).consume(e),!0)}revert(t,e){const n=this._consumables.get(t);void 0!==n&&(t.is("text")||t.is("documentFragment")?this._consumables.set(t,!0):n.revert(e))}static consumablesFromElement(t){const e={name:!0,attributes:[],classes:[],styles:[]},n=t.getAttributeKeys();for(const t of n)"style"!=t&&"class"!=t&&e.attributes.push(t);const o=t.getClassNames();for(const t of o)e.classes.push(t);const i=t.getStyleNames();for(const t of i)e.styles.push(t);return e}static createFrom(t,e){if(e||(e=new $s),t.is("text"))return e.add(t),e;t.is("element")&&e.add(t,$s.consumablesFromElement(t)),t.is("documentFragment")&&e.add(t);for(const n of t.getChildren())e=$s.createFrom(n,e);return e}}class Ks{constructor(){this._canConsumeName=null,this._consumables={attributes:new Map,styles:new Map,classes:new Map}}add(t){t.name&&(this._canConsumeName=!0);for(const e in this._consumables)e in t&&this._add(e,t[e])}test(t){if(t.name&&!this._canConsumeName)return this._canConsumeName;for(const e in this._consumables)if(e in t){const n=this._test(e,t[e]);if(!0!==n)return n}return!0}consume(t){t.name&&(this._canConsumeName=!1);for(const e in this._consumables)e in t&&this._consume(e,t[e])}revert(t){t.name&&(this._canConsumeName=!0);for(const e in this._consumables)e in t&&this._revert(e,t[e])}_add(t,e){const n=Xt(e)?e:[e],o=this._consumables[t];for(const e of n){if("attributes"===t&&("class"===e||"style"===e))throw new m.b("viewconsumable-invalid-attribute: Classes and styles should be handled separately.");o.set(e,!0)}}_test(t,e){const n=Xt(e)?e:[e],o=this._consumables[t];for(const e of n)if("attributes"!==t||"class"!==e&&"style"!==e){const t=o.get(e);if(void 0===t)return null;if(!t)return!1}else{const t="class"==e?"classes":"styles",n=this._test(t,[...this._consumables[t].keys()]);if(!0!==n)return n}return!0}_consume(t,e){const n=Xt(e)?e:[e],o=this._consumables[t];for(const e of n)if("attributes"!==t||"class"!==e&&"style"!==e)o.set(e,!1);else{const t="class"==e?"classes":"styles";this._consume(t,[...this._consumables[t].keys()])}}_revert(t,e){const n=Xt(e)?e:[e],o=this._consumables[t];for(const e of n)if("attributes"!==t||"class"!==e&&"style"!==e){!1===o.get(e)&&o.set(e,!0)}else{const t="class"==e?"classes":"styles";this._revert(t,[...this._consumables[t].keys()])}}}class Gs{constructor(){this._sourceDefinitions={},this.decorate("checkChild"),this.decorate("checkAttribute"),this.on("checkAttribute",(t,e)=>{e[0]=new Js(e[0])},{priority:"highest"}),this.on("checkChild",(t,e)=>{e[0]=new Js(e[0]),e[1]=this.getDefinition(e[1])},{priority:"highest"})}register(t,e){if(this._sourceDefinitions[t])throw new m.b("schema-cannot-register-item-twice: A single item cannot be registered twice in the schema.",{itemName:t});this._sourceDefinitions[t]=[Object.assign({},e)],this._clearCache()}extend(t,e){if(!this._sourceDefinitions[t])throw new m.b("schema-cannot-extend-missing-item: Cannot extend an item which was not registered yet.",{itemName:t});this._sourceDefinitions[t].push(Object.assign({},e)),this._clearCache()}getDefinitions(){return this._compiledDefinitions||this._compile(),this._compiledDefinitions}getDefinition(t){let e;return e="string"==typeof t?t:t.is&&(t.is("text")||t.is("textProxy"))?"$text":t.name,this.getDefinitions()[e]}isRegistered(t){return!!this.getDefinition(t)}isBlock(t){const e=this.getDefinition(t);return!(!e||!e.isBlock)}isLimit(t){const e=this.getDefinition(t);return!!e&&!(!e.isLimit&&!e.isObject)}isObject(t){const e=this.getDefinition(t);return!(!e||!e.isObject)}checkChild(t,e){return!!e&&this._checkContextMatch(e,t)}checkAttribute(t,e){const n=this.getDefinition(t.last);return!!n&&n.allowAttributes.includes(e)}checkMerge(t,e=null){if(t instanceof vs){const e=t.nodeBefore,n=t.nodeAfter;if(!(e instanceof ms))throw new m.b("schema-check-merge-no-element-before: The node before the merge position must be an element.");if(!(n instanceof ms))throw new m.b("schema-check-merge-no-element-after: The node after the merge position must be an element.");return this.checkMerge(e,n)}for(const n of e.getChildren())if(!this.checkChild(t,n))return!1;return!0}addChildCheck(t){this.on("checkChild",(e,[n,o])=>{if(!o)return;const i=t(n,o);"boolean"==typeof i&&(e.stop(),e.return=i)},{priority:"high"})}addAttributeCheck(t){this.on("checkAttribute",(e,[n,o])=>{const i=t(n,o);"boolean"==typeof i&&(e.stop(),e.return=i)},{priority:"high"})}getLimitElement(t){let e;if(t instanceof vs)e=t.parent;else{e=(t instanceof _s?[t]:Array.from(t.getRanges())).reduce((t,e)=>{const n=e.getCommonAncestor();return t?t.getCommonAncestor(n,{includeSelf:!0}):n},null)}for(;!this.isLimit(e)&&e.parent;)e=e.parent;return e}checkAttributeInSelection(t,e){if(t.isCollapsed)return this.checkAttribute([...t.getFirstPosition().getAncestors(),"$text"],e);{const n=t.getRanges();for(const t of n)for(const n of t)if(this.checkAttribute(n.item,e))return!0}return!1}getValidRanges(t,e){const n=[];for(const o of t){let t=o.start,i=o.start;const r=o.end;for(const r of o.getWalker())this.checkAttribute(r.item,e)||(i.isEqual(t)||n.push(new _s(i,t)),i=r.nextPosition),t=r.nextPosition;i&&!i.isEqual(r)&&n.push(new _s(i,r))}return n}getNearestSelectionRange(t,e="both"){if(this.checkChild(t,"$text"))return new _s(t);let n,o;"both"!=e&&"backward"!=e||(n=new gs({startPosition:t,direction:"backward"})),"both"!=e&&"forward"!=e||(o=new gs({startPosition:t}));for(const t of function*(t,e){let n=!1;for(;!n;){if(n=!0,t){const e=t.next();e.done||(n=!1,yield{walker:t,value:e.value})}if(e){const t=e.next();t.done||(n=!1,yield{walker:e,value:t.value})}}}(n,o)){const e=t.walker==n?"elementEnd":"elementStart",o=t.value;if(o.type==e&&this.isObject(o.item))return _s.createOn(o.item);if(this.checkChild(o.nextPosition,"$text"))return new _s(o.nextPosition)}return null}findAllowedParent(t,e){let n=e.parent;for(;n;){if(this.checkChild(n,t))return n;if(this.isLimit(n))return null;n=n.parent}return null}removeDisallowedAttributes(t,e){for(const n of t){for(const t of n.getAttributeKeys())this.checkAttribute(n,t)||e.removeAttribute(t,n);n.is("element")&&this.removeDisallowedAttributes(n.getChildren(),e)}}_clearCache(){this._compiledDefinitions=null}_compile(){const t={},e=this._sourceDefinitions,n=Object.keys(e);for(const o of n)t[o]=Qs(e[o],o);for(const e of n)Ys(t,e);for(const e of n)Xs(t,e);for(const e of n)Zs(t,e),ta(t,e);for(const e of n)ea(t,e),na(t,e);this._compiledDefinitions=t}_checkContextMatch(t,e,n=e.length-1){const o=e.getItem(n);if(t.allowIn.includes(o.name)){if(0==n)return!0;{const t=this.getDefinition(o);return this._checkContextMatch(t,e,n-1)}}return!1}}P(Gs,xo);class Js{constructor(t){if(t instanceof Js)return t;"string"==typeof t?t=[t]:Array.isArray(t)||(t=t.getAncestors({includeSelf:!0})),t[0]&&"string"!=typeof t[0]&&t[0].is("documentFragment")&&t.shift(),this._items=t.map(ra)}get length(){return this._items.length}get last(){return this._items[this._items.length-1]}[Symbol.iterator](){return this._items[Symbol.iterator]()}push(t){const e=new Js([t]);return e._items=[...this._items,...e._items],e}getItem(t){return this._items[t]}*getNames(){yield*this._items.map(t=>t.name)}endsWith(t){return Array.from(this.getNames()).join(" ").endsWith(t)}}function Qs(t,e){const n={name:e,allowIn:[],allowContentOf:[],allowWhere:[],allowAttributes:[],allowAttributesOf:[],inheritTypesFrom:[]};return function(t,e){for(const n of t){const t=Object.keys(n).filter(t=>t.startsWith("is"));for(const o of t)e[o]=n[o]}}(t,n),oa(t,n,"allowIn"),oa(t,n,"allowContentOf"),oa(t,n,"allowWhere"),oa(t,n,"allowAttributes"),oa(t,n,"allowAttributesOf"),oa(t,n,"inheritTypesFrom"),function(t,e){for(const n of t){const t=n.inheritAllFrom;t&&(e.allowContentOf.push(t),e.allowWhere.push(t),e.allowAttributesOf.push(t),e.inheritTypesFrom.push(t))}}(t,n),n}function Ys(t,e){for(const n of t[e].allowContentOf)if(t[n]){ia(t,n).forEach(t=>{t.allowIn.push(e)})}delete t[e].allowContentOf}function Xs(t,e){for(const n of t[e].allowWhere){const o=t[n];if(o){const n=o.allowIn;t[e].allowIn.push(...n)}}delete t[e].allowWhere}function Zs(t,e){for(const n of t[e].allowAttributesOf){const o=t[n];if(o){const n=o.allowAttributes;t[e].allowAttributes.push(...n)}}delete t[e].allowAttributesOf}function ta(t,e){const n=t[e];for(const e of n.inheritTypesFrom){const o=t[e];if(o){const t=Object.keys(o).filter(t=>t.startsWith("is"));for(const e of t)e in n||(n[e]=o[e])}}delete n.inheritTypesFrom}function ea(t,e){const n=t[e],o=n.allowIn.filter(e=>t[e]);n.allowIn=Array.from(new Set(o))}function na(t,e){const n=t[e];n.allowAttributes=Array.from(new Set(n.allowAttributes))}function oa(t,e,n){for(const o of t)"string"==typeof o[n]?e[n].push(o[n]):Array.isArray(o[n])&&e[n].push(...o[n])}function ia(t,e){const n=t[e];return function(t){return Object.keys(t).map(e=>t[e])}(t).filter(t=>t.allowIn.includes(n.name))}function ra(t){return"string"==typeof t?{name:t,*getAttributeKeys(){},getAttribute(){}}:{name:t.is("element")?t.name:"$text",*getAttributeKeys(){yield*t.getAttributeKeys()},getAttribute:e=>t.getAttribute(e)}}class sa{constructor(t={}){this._removeIfEmpty=new Set,this._modelCursor=null,this.conversionApi=Object.assign({},t),this.conversionApi.convertItem=this._convertItem.bind(this),this.conversionApi.convertChildren=this._convertChildren.bind(this),this.conversionApi.splitToAllowedParent=this._splitToAllowedParent.bind(this)}convert(t,e,n=["$root"]){this.fire("viewCleanup",t),this._modelCursor=function(t,e){let n;for(const o of new Js(t)){const t={};for(const e of o.getAttributeKeys())t[e]=o.getAttribute(e);const i=e.createElement(o.name,t);n&&e.append(i,n),n=vs.createAt(i)}return n}(n,e),this.conversionApi.writer=e,this.conversionApi.consumable=$s.createFrom(t),this.conversionApi.store={};const{modelRange:o}=this._convertItem(t,this._modelCursor),i=e.createDocumentFragment();if(o){this._removeEmptyElements();for(const t of Array.from(this._modelCursor.parent.getChildren()))e.append(t,i);i.markers=function(t,e){const n=new Set,o=new Map,i=_s.createIn(t).getItems();for(const t of i)"$marker"==t.name&&n.add(t);for(const t of n){const n=t.getAttribute("data-name"),i=vs.createBefore(t);o.has(n)?o.get(n).end=vs.createFromPosition(i):o.set(n,new _s(vs.createFromPosition(i))),e.remove(t)}return o}(i,e)}return this._modelCursor=null,this._removeIfEmpty.clear(),this.conversionApi.writer=null,this.conversionApi.store=null,i}_convertItem(t,e){const n=Object.assign({viewItem:t,modelCursor:e,modelRange:null});if(t.is("element")?this.fire("element:"+t.name,n,this.conversionApi):t.is("text")?this.fire("text",n,this.conversionApi):this.fire("documentFragment",n,this.conversionApi),n.modelRange&&!(n.modelRange instanceof _s))throw new m.b("view-conversion-dispatcher-incorrect-result: Incorrect conversion result was dropped.");return{modelRange:n.modelRange,modelCursor:n.modelCursor}}_convertChildren(t,e){const n=new _s(e);let o=e;for(const e of Array.from(t.getChildren())){const t=this._convertItem(e,o);t.modelRange instanceof _s&&(n.end=t.modelRange.end,o=t.modelCursor)}return{modelRange:n,modelCursor:o}}_splitToAllowedParent(t,e){const n=this.conversionApi.schema.findAllowedParent(t,e);if(!n)return null;if(n===e.parent)return{position:e};if(this._modelCursor.parent.getAncestors().includes(n))return null;const o=this.conversionApi.writer.split(e,n);for(const t of o.range.getPositions())t.isEqual(o.position)||this._removeIfEmpty.add(t.parent);return{position:o.position,cursorParent:o.range.end.parent}}_removeEmptyElements(){let t=!1;for(const e of this._removeIfEmpty)e.isEmpty&&(this.conversionApi.writer.remove(e),this._removeIfEmpty.delete(e),t=!0);t&&this._removeEmptyElements()}}function aa(t){const e=function(t){const e=new Fn(t.view);return(n,o,i)=>{const r=e.match(o.viewItem);if(!r)return;r.match.name=!0;const s=function(t,e,n){return t instanceof Function?t(e,n):n.createElement(t)}(t.model,o.viewItem,i.writer);if(!s)return;if(!i.consumable.test(o.viewItem,r.match))return;const a=i.splitToAllowedParent(s,o.modelCursor);if(!a)return;i.writer.insert(s,a.position);const c=i.convertChildren(o.viewItem,vs.createAt(s));i.consumable.consume(o.viewItem,r.match),o.modelRange=new _s(vs.createBefore(s),vs.createAfter(c.modelCursor.parent)),a.cursorParent?o.modelCursor=vs.createAt(a.cursorParent):o.modelCursor=o.modelRange.end}}(t=Fs(t)),n=da(t),o=n?"element:"+n:"element";return n=>{n.on(o,e,{priority:t.converterPriority||"normal"})}}function ca(t){ua(t=Fs(t));const e=ha(t,!1),n=da(t),o=n?"element:"+n:"element";return n=>{n.on(o,e,{priority:t.converterPriority||"normal"})}}function la(t){let e=null;("string"==typeof(t=Fs(t)).view||t.view.key)&&(e=function(t){"string"==typeof t.view&&(t.view={key:t.view});const e=t.view.key;let n;if("class"==e||"style"==e){const o="class"==e?"classes":"styles";n={[o]:t.view.value}}else{const o=void 0===t.view.value?/[\s\S]*/:t.view.value;n={attributes:{[e]:o}}}t.view.name&&(n.name=t.view.name);return t.view=n,e}(t)),ua(t,e);const n=ha(t,!0);return e=>{e.on("element",n,{priority:t.converterPriority||"low"})}}function da(t){return"string"==typeof t.view?t.view:"object"==typeof t.view&&"string"==typeof t.view.name?t.view.name:null}function ua(t,e=null){const n=null===e||(t=>t.getAttribute(e)),o="object"!=typeof t.model?t.model:t.model.key,i="object"!=typeof t.model||void 0===t.model.value?n:t.model.value;t.model={key:o,value:i}}function ha(t,e){const n=new Fn(t.view);return(o,i,r)=>{const s=n.match(i.viewItem);if(!s)return;const a=t.model.key,c="function"==typeof t.model.value?t.model.value(i.viewItem):t.model.value;null!==c&&(!function(t){if("object"==typeof t.view&&!da(t))return!1;return!t.view.classes&&!t.view.attributes&&!t.view.styles}(t)?delete s.match.name:s.match.name=!0,r.consumable.test(i.viewItem,s.match)&&(i.modelRange||(i=Object.assign(i,r.convertChildren(i.viewItem,i.modelCursor))),function(t,e,n,o){let i=!1;for(const r of Array.from(t.getItems({shallow:n})))o.schema.checkAttribute(r,e.key)&&(o.writer.setAttribute(e.key,e.value,r),i=!0);return i}(i.modelRange,{key:a,value:c},e,r)&&r.consumable.consume(i.viewItem,s.match)))}}P(sa,y);class fa{constructor(t,e){this.model=t,this.processor=e,this.mapper=new ks,this.downcastDispatcher=new As({mapper:this.mapper}),this.downcastDispatcher.on("insert:$text",(t,e,n)=>{if(!n.consumable.consume(e.item,"insert"))return;const o=n.writer,i=n.mapper.toViewPosition(e.range.start),r=o.createText(e.item.data);o.insert(i,r)},{priority:"lowest"}),this.upcastDispatcher=new sa({schema:t.schema}),this.upcastDispatcher.on("text",(t,e,n)=>{if(n.schema.checkChild(e.modelCursor,"$text")&&n.consumable.consume(e.viewItem)){const t=n.writer.createText(e.viewItem.data);n.writer.insert(t,e.modelCursor),e.modelRange=_s.createFromPositionAndShift(e.modelCursor,t.offsetSize),e.modelCursor=e.modelRange.end}},{priority:"lowest"}),this.upcastDispatcher.on("element",(t,e,n)=>{if(!e.modelRange&&n.consumable.consume(e.viewItem,{name:!0})){const{modelRange:t,modelCursor:o}=n.convertChildren(e.viewItem,e.modelCursor);e.modelRange=t,e.modelCursor=o}},{priority:"lowest"}),this.upcastDispatcher.on("documentFragment",(t,e,n)=>{if(!e.modelRange&&n.consumable.consume(e.viewItem,{name:!0})){const{modelRange:t,modelCursor:o}=n.convertChildren(e.viewItem,e.modelCursor);e.modelRange=t,e.modelCursor=o}},{priority:"lowest"}),this.decorate("init")}get(t="main"){return this.stringify(this.model.document.getRoot(t))}stringify(t){const e=this.toView(t);return this.processor.toData(e)}toView(t){const e=_s.createIn(t),n=new ri,o=new si(new zo);if(this.mapper.bindElements(t,n),this.downcastDispatcher.convertInsert(e,o),!t.is("documentFragment")){const e=function(t){const e=[],n=t.root.document;if(!n)return[];const o=_s.createIn(t);for(const t of n.model.markers){const n=o.getIntersection(t.getRange());n&&e.push([t.name,n])}return e}(t);for(const[t,n]of e)this.downcastDispatcher.convertMarkerAdd(t,n,o)}return this.mapper.clearBindings(),n}init(t,e="main"){if(this.model.document.version)throw new m.b("datacontroller-init-document-not-empty: Trying to set initial data to not empty document.");const n=this.model.document.getRoot(e);return this.model.enqueueChange("transparent",e=>{e.insert(this.parse(t,n),n)}),Promise.resolve()}set(t,e="main"){const n=this.model.document.getRoot(e);this.model.enqueueChange("transparent",e=>{e.setSelection(null),e.removeSelectionAttribute(this.model.document.selection.getAttributeKeys()),e.remove(_s.createIn(n)),e.insert(this.parse(t,n),n)})}parse(t,e="$root"){const n=this.processor.toView(t);return this.toModel(n,e)}toModel(t,e="$root"){return this.model.change(n=>this.upcastDispatcher.convert(t,n,e))}destroy(){}}P(fa,xo);class pa{constructor(){this._dispatchersGroups=new Map}register(t,e){if(this._dispatchersGroups.has(t))throw new m.b("conversion-register-group-exists: Trying to register a group name that was already registered.");this._dispatchersGroups.set(t,e)}for(t){const e=this._getDispatchers(t);return{add(t){return function(t,e){for(const n of t)e(n)}(e,t),this}}}elementToElement(t){this.for("downcast").add(Vs(t));for(const{model:e,view:n}of ma(t))this.for("upcast").add(aa({model:e,view:n,converterPriority:t.converterPriority}))}attributeToElement(t){this.for("downcast").add(Ns(t));for(const{model:e,view:n}of ma(t))this.for("upcast").add(ca({view:n,model:e,priority:t.priority}))}attributeToAttribute(t){this.for("downcast").add(Ds(t));for(const{model:e,view:n}of ma(t))this.for("upcast").add(la({view:n,model:e}))}_getDispatchers(t){const e=this._dispatchersGroups.get(t);if(!e)throw new m.b("conversion-for-unknown-group: Trying to add a converter to an unknown dispatchers group.");return e}}function*ma(t){if(t.model.values)for(const e of t.model.values){yield*ga({key:t.model.key,value:e},t.view[e],t.upcastAlso?t.upcastAlso[e]:void 0)}else yield*ga(t.model,t.view,t.upcastAlso)}function*ga(t,e,n){if(yield{model:t,view:e},n){n=Array.isArray(n)?n:[n];for(const e of n)yield{model:t,view:e}}}class ba{constructor(t){this.baseVersion=t,this.isDocumentOperation=null!==this.baseVersion}_validate(){}toJSON(){const t=Sn(this,!0);return t.__className=this.constructor.className,delete t.delta,delete t.isDocumentOperation,t}static get className(){return"engine.model.operation.Operation"}static fromJSON(t){return new this(t.baseVersion)}}class wa{constructor(t){this.markers=new Map,this._children=new ps,t&&this._insertChild(0,t)}[Symbol.iterator](){return this.getChildren()}get childCount(){return this._children.length}get maxOffset(){return this._children.maxOffset}get isEmpty(){return 0===this.childCount}get root(){return this}get parent(){return null}is(t){return"documentFragment"==t}getChild(t){return this._children.getNode(t)}getChildren(){return this._children[Symbol.iterator]()}getChildIndex(t){return this._children.getNodeIndex(t)}getChildStartOffset(t){return this._children.getNodeStartOffset(t)}getPath(){return[]}getNodeByPath(t){let e=this;for(const n of t)e=e.getChild(e.offsetToIndex(n));return e}offsetToIndex(t){return this._children.offsetToIndex(t)}toJSON(){const t=[];for(const e of this._children)t.push(e.toJSON());return t}static fromJSON(t){const e=[];for(const n of t)n.name?e.push(ms.fromJSON(n)):e.push(hs.fromJSON(n));return new wa(e)}_appendChild(t){this._insertChild(this.childCount,t)}_insertChild(t,e){const n=function(t){if("string"==typeof t)return[new hs(t)];Mn(t)||(t=[t]);return Array.from(t).map(t=>"string"==typeof t?new hs(t):t instanceof fs?new hs(t.data,t.getAttributes()):t)}(e);for(const t of n)null!==t.parent&&t._remove(),t.parent=this;this._children._insertNodes(t,n)}_removeChildren(t,e=1){const n=this._children._removeNodes(t,e);for(const t of n)t.parent=null;return n}}function va(t,e){const n=(e=ka(e)).reduce((t,e)=>t+e.offsetSize,0),o=t.parent;xa(t);const i=t.index;return o._insertChild(i,e),ya(o,i+e.length),ya(o,i),new _s(t,t.getShiftedBy(n))}function _a(t){if(!t.isFlat)throw new m.b("operation-utils-remove-range-not-flat: Trying to remove a range which starts and ends in different element.");const e=t.start.parent;xa(t.start),xa(t.end);const n=e._removeChildren(t.start.index,t.end.index-t.start.index);return ya(e,t.start.index),n}function ka(t){const e=[];t instanceof Array||(t=[t]);for(let n=0;n<t.length;n++)if("string"==typeof t[n])e.push(new hs(t[n]));else if(t[n]instanceof fs)e.push(new hs(t[n].data,t[n].getAttributes()));else if(t[n]instanceof wa||t[n]instanceof ps)for(const o of t[n])e.push(o);else t[n]instanceof us&&e.push(t[n]);for(let t=1;t<e.length;t++){const n=e[t],o=e[t-1];n instanceof hs&&o instanceof hs&&Aa(n,o)&&(e.splice(t-1,2,new hs(o.data+n.data,o.getAttributes())),t--)}return e}function ya(t,e){const n=t.getChild(e-1),o=t.getChild(e);if(n&&o&&n.is("text")&&o.is("text")&&Aa(n,o)){const i=new hs(n.data+o.data,n.getAttributes());t._removeChildren(e-1,2),t._insertChild(e-1,i)}}function xa(t){const e=t.textNode,n=t.parent;if(e){const o=t.offset-e.startOffset,i=e.index;n._removeChildren(i,1);const r=new hs(e.data.substr(0,o),e.getAttributes()),s=new hs(e.data.substr(o),e.getAttributes());n._insertChild(i,[r,s])}}function Aa(t,e){const n=t.getAttributes(),o=e.getAttributes();for(const t of n){if(t[1]!==e.getAttribute(t[0]))return!1;o.next()}return o.next().done}var Ca=function(t,e){return Rr(t,e)};class Ta extends ba{constructor(t,e,n,o,i){super(i),this.range=_s.createFromRange(t),this.key=e,this.oldValue=void 0===n?null:n,this.newValue=void 0===o?null:o}get type(){return null===this.oldValue?"addAttribute":null===this.newValue?"removeAttribute":"changeAttribute"}clone(){return new Ta(this.range,this.key,this.oldValue,this.newValue,this.baseVersion)}getReversed(){return new Ta(this.range,this.key,this.newValue,this.oldValue,this.baseVersion+1)}_validate(){for(const t of this.range.getItems()){if(null!==this.oldValue&&!Ca(t.getAttribute(this.key),this.oldValue))throw new m.b("attribute-operation-wrong-old-value: Changed node has different attribute value than operation's old attribute value.",{item:t,key:this.key,value:this.oldValue});if(null===this.oldValue&&null!==this.newValue&&t.hasAttribute(this.key))throw new m.b("attribute-operation-attribute-exists: The attribute with given key already exists.",{node:t,key:this.key})}}_execute(){Ca(this.oldValue,this.newValue)||function(t,e,n){xa(t.start),xa(t.end);for(const o of t.getItems()){const t=o.is("textProxy")?o.textNode:o;null!==n?t._setAttribute(e,n):t._removeAttribute(e),ya(t.parent,t.index)}ya(t.end.parent,t.end.index)}(this.range,this.key,this.newValue)}static get className(){return"engine.model.operation.AttributeOperation"}static fromJSON(t,e){return new Ta(_s.fromJSON(t.range,e),t.key,t.oldValue,t.newValue,t.baseVersion)}}class Sa extends ba{constructor(t,e,n,o){super(o),this.sourcePosition=vs.createFromPosition(t),this.howMany=e,this.targetPosition=vs.createFromPosition(n),this.isSticky=!1}get type(){return"move"}clone(){const t=new this.constructor(this.sourcePosition,this.howMany,this.targetPosition,this.baseVersion);return t.isSticky=this.isSticky,t}getMovedRangeStart(){return this.targetPosition._getTransformedByDeletion(this.sourcePosition,this.howMany)}getReversed(){const t=this.sourcePosition._getTransformedByInsertion(this.targetPosition,this.howMany),e=new this.constructor(this.getMovedRangeStart(),this.howMany,t,this.baseVersion+1);return e.isSticky=this.isSticky,e}_validate(){const t=this.sourcePosition.parent,e=this.targetPosition.parent,n=this.sourcePosition.offset,o=this.targetPosition.offset;if(!t||!e)throw new m.b("move-operation-position-invalid: Source position or target position is invalid.");if(n+this.howMany>t.maxOffset)throw new m.b("move-operation-nodes-do-not-exist: The nodes which should be moved do not exist.");if(t===e&&n<o&&o<n+this.howMany)throw new m.b("move-operation-range-into-itself: Trying to move a range of nodes to the inside of that range.");if(this.sourcePosition.root==this.targetPosition.root&&"prefix"==En(this.sourcePosition.getParentPath(),this.targetPosition.getParentPath())){const t=this.sourcePosition.path.length-1;if(this.targetPosition.path[t]>=n&&this.targetPosition.path[t]<n+this.howMany)throw new m.b("move-operation-node-into-itself: Trying to move a range of nodes into one of nodes from that range.")}}_execute(){!function(t,e){if(!t.isFlat)throw new m.b("operation-utils-move-range-not-flat: Trying to move a range which starts and ends in different element.");const n=_a(t);va(e=e._getTransformedByDeletion(t.start,t.end.offset-t.start.offset),n)}(_s.createFromPositionAndShift(this.sourcePosition,this.howMany),this.targetPosition)}static get className(){return"engine.model.operation.MoveOperation"}static fromJSON(t,e){const n=vs.fromJSON(t.sourcePosition,e),o=vs.fromJSON(t.targetPosition,e),i=new this(n,t.howMany,o,t.baseVersion);return t.isSticky&&(i.isSticky=!0),i}}class Ea extends Sa{get position(){return this.targetPosition}set position(t){this.targetPosition=t}get type(){return"reinsert"}getReversed(){const t=this.sourcePosition._getTransformedByInsertion(this.targetPosition,this.howMany);return new Pa(this.getMovedRangeStart(),this.howMany,t,this.baseVersion+1)}_validate(){if(super._validate(),!this.sourcePosition.root.document)throw new m.b("reinsert-operation-on-detached-item: Cannot reinsert detached item.");if(!this.targetPosition.root.document)throw new m.b("reinsert-operation-to-detached-parent: Cannot reinsert item to detached parent.")}static get className(){return"engine.model.operation.ReinsertOperation"}}class Pa extends Sa{get type(){return"remove"}getReversed(){const t=this.sourcePosition._getTransformedByInsertion(this.targetPosition,this.howMany);return new Ea(this.getMovedRangeStart(),this.howMany,t,this.baseVersion+1)}_validate(){if(super._validate(),!this.sourcePosition.root.document)throw new m.b("remove-operation-on-detached-item: Cannot remove detached item.")}static get className(){return"engine.model.operation.RemoveOperation"}}class Oa extends ba{constructor(t,e,n){super(n),this.position=vs.createFromPosition(t),this.nodes=new ps(ka(e))}get type(){return"insert"}clone(){const t=new ps([...this.nodes].map(t=>t._clone(!0)));return new Oa(this.position,t,this.baseVersion)}getReversed(){const t=this.position.root.document.graveyard,e=new vs(t,[0]);return new Pa(this.position,this.nodes.maxOffset,e,this.baseVersion+1)}_validate(){const t=this.position.parent;if(!t||t.maxOffset<this.position.offset)throw new m.b("insert-operation-position-invalid: Insertion position is invalid.")}_execute(){const t=this.nodes;this.nodes=new ps([...t].map(t=>t._clone(!0))),va(this.position,t)}static get className(){return"engine.model.operation.InsertOperation"}static fromJSON(t,e){const n=[];for(const e of t.nodes)e.name?n.push(ms.fromJSON(e)):n.push(hs.fromJSON(e));return new Oa(vs.fromJSON(t.position,e),n,t.baseVersion)}}class Ra extends ba{constructor(t,e,n,o,i,r){super(i),this.name=t,this.oldRange=e?_s.createFromRange(e):null,this.newRange=n?_s.createFromRange(n):null,this.affectsData=r,this._markers=o}get type(){return"marker"}clone(){return new Ra(this.name,this.oldRange,this.newRange,this._markers,this.baseVersion,this.affectsData)}getReversed(){return new Ra(this.name,this.newRange,this.oldRange,this._markers,this.baseVersion+1,this.affectsData)}_execute(){const t=this.newRange?"_set":"_remove";this._markers[t](this.name,this.newRange,!0,this.affectsData)}toJSON(){const t=super.toJSON();return delete t._markers,t}static get className(){return"engine.model.operation.MarkerOperation"}static fromJSON(t,e){return new Ra(t.name,t.oldRange?_s.fromJSON(t.oldRange,e):null,t.newRange?_s.fromJSON(t.newRange,e):null,e.model.markers,t.baseVersion,t.affectsData)}}class Ia extends ba{get type(){return"noop"}clone(){return new Ia(this.baseVersion)}getReversed(){return new Ia(this.baseVersion+1)}_execute(){}static get className(){return"engine.model.operation.NoOperation"}}class Ma extends ba{constructor(t,e,n,o){super(o),this.position=t,this.oldName=e,this.newName=n}get type(){return"rename"}clone(){return new Ma(vs.createFromPosition(this.position),this.oldName,this.newName,this.baseVersion)}getReversed(){return new Ma(vs.createFromPosition(this.position),this.newName,this.oldName,this.baseVersion+1)}_validate(){const t=this.position.nodeAfter;if(!(t instanceof ms))throw new m.b("rename-operation-wrong-position: Given position is invalid or node after it is not an instance of Element.");if(t.name!==this.oldName)throw new m.b("rename-operation-wrong-name: Element to change has different name than operation's old name.")}_execute(){this.position.nodeAfter.name=this.newName}static get className(){return"engine.model.operation.RenameOperation"}static fromJSON(t,e){return new Ma(vs.fromJSON(t.position,e),t.oldName,t.newName,t.baseVersion)}}class Fa extends ba{constructor(t,e,n,o,i){super(i),this.root=t,this.key=e,this.oldValue=n,this.newValue=o}get type(){return null===this.oldValue?"addRootAttribute":null===this.newValue?"removeRootAttribute":"changeRootAttribute"}clone(){return new Fa(this.root,this.key,this.oldValue,this.newValue,this.baseVersion)}getReversed(){return new Fa(this.root,this.key,this.newValue,this.oldValue,this.baseVersion+1)}_validate(){if(this.root!=this.root.root||this.root.is("documentFragment"))throw new m.b("rootattribute-operation-not-a-root: The element to change is not a root element.",{root:this.root,key:this.key});if(null!==this.oldValue&&this.root.getAttribute(this.key)!==this.oldValue)throw new m.b("rootattribute-operation-wrong-old-value: Changed node has different attribute value than operation's old attribute value.",{root:this.root,key:this.key});if(null===this.oldValue&&null!==this.newValue&&this.root.hasAttribute(this.key))throw new m.b("rootattribute-operation-attribute-exists: The attribute with given key already exists.",{root:this.root,key:this.key})}_execute(){null!==this.newValue?this.root._setAttribute(this.key,this.newValue):this.root._removeAttribute(this.key)}static get className(){return"engine.model.operation.RootAttributeOperation"}static fromJSON(t,e){if(!e.getRoot(t.root))throw new m.b("rootattribute-operation-fromjson-no-root: Cannot create RootAttributeOperation. Root with specified name does not exist.",{rootName:t});return new Fa(e.getRoot(t.root),t.key,t.oldValue,t.newValue,t.baseVersion)}}const Va={};Va[Ta.className]=Ta,Va[Oa.className]=Oa,Va[Ra.className]=Ra,Va[Sa.className]=Sa,Va[Ia.className]=Ia,Va[ba.className]=ba,Va[Ea.className]=Ea,Va[Pa.className]=Pa,Va[Ma.className]=Ma,Va[Fa.className]=Fa;class Na{static fromJSON(t,e){return Va[t.__className].fromJSON(t,e)}}const Da=new Map;class Ba{static fromJSON(t,e){if(!Da.has(t.__className))throw new m.b("delta-fromjson-no-deserializer: This delta has no defined deserializer",{name:t.__className});const n=new(Da.get(t.__className));for(const o of t.operations)n.addOperation(Na.fromJSON(o,e));for(const e in t)"__className"!=e&&void 0===n[e]&&(n[e]=t[e]);return n}static register(t){Da.set(t.className,t)}}class La{constructor(){this.batch=null,this.operations=[]}get baseVersion(){return this.operations.length>0?this.operations[0].baseVersion:null}set baseVersion(t){for(const e of this.operations)e.baseVersion=t++}get _reverseDeltaClass(){return La}addOperation(t){return t.delta=this,this.operations.push(t),t}clone(){const t=new this.constructor;for(const e of this.operations)t.addOperation(e.clone());return t}getReversed(){const t=new this._reverseDeltaClass;for(const e of this.operations)t.addOperation(e.getReversed());t.operations.reverse();for(let e=0;e<t.operations.length;e++)t.operations[e].baseVersion=this.operations[this.operations.length-1].baseVersion+e+1;return t}toJSON(){const t=Sn(this);return t.__className=this.constructor.className,delete t.batch,t}static get className(){return"engine.model.delta.Delta"}}Ba.register(La);class ja extends La{get type(){return"attribute"}get key(){return this.operations[0]?this.operations[0].key:null}get value(){return this.operations[0]?this.operations[0].newValue:null}get range(){if(this._range)return this._range;let t=null,e=null;for(const n of this.operations)n instanceof Ia||((null===t||t.isAfter(n.range.start))&&(t=n.range.start),(null===e||e.isBefore(n.range.end))&&(e=n.range.end));return t&&e?(this._range=new _s(t,e),this._range):null}get _reverseDeltaClass(){return ja}toJSON(){const t=super.toJSON();return delete t._range,t}static get className(){return"engine.model.delta.AttributeDelta"}}Ba.register(ja);class za extends La{get type(){return"split"}get position(){return this._moveOperation?this._moveOperation.sourcePosition:null}get _cloneOperation(){return this.operations[0]||null}get _moveOperation(){return this.operations[1]&&this.operations[1]instanceof Sa?this.operations[1]:null}get _reverseDeltaClass(){return qa}static get className(){return"engine.model.delta.SplitDelta"}}Ba.register(za);class qa extends La{get type(){return"merge"}get position(){return this._removeOperation?this._removeOperation.sourcePosition:null}get _removeOperation(){return this.operations[1]||null}get _reverseDeltaClass(){return za}static get className(){return"engine.model.delta.MergeDelta"}}Ba.register(qa);class Ua extends La{get type(){return"move"}get howMany(){return this._moveOperation?this._moveOperation.howMany:null}get sourcePosition(){return this._moveOperation?this._moveOperation.sourcePosition:null}get targetPosition(){return this._moveOperation?this._moveOperation.targetPosition:null}get _moveOperation(){return this.operations[0]||null}get _reverseDeltaClass(){return Ua}static get className(){return"engine.model.delta.MoveDelta"}}Ba.register(Ua);class Wa extends Ua{static get className(){return"engine.model.delta.RemoveDelta"}}Ba.register(Wa);class Ha extends La{get type(){return"rename"}get _reverseDeltaClass(){return Ha}static get className(){return"engine.model.delta.RenameDelta"}}Ba.register(Ha);class $a extends La{get type(){return"wrap"}get range(){const t=this._moveOperation;return t?_s.createFromPositionAndShift(t.sourcePosition,t.howMany):null}get howMany(){const t=this.range;return t?t.end.offset-t.start.offset:0}get _insertOperation(){return this.operations[0]||null}get _moveOperation(){return this.operations[1]||null}get _reverseDeltaClass(){return Ka}static get className(){return"engine.model.delta.WrapDelta"}}Ba.register($a);class Ka extends La{get type(){return"unwrap"}get position(){return this._moveOperation?this._moveOperation.targetPosition:null}get _moveOperation(){return this.operations[0]||null}get _reverseDeltaClass(){return $a}static get className(){return"engine.model.delta.UnwrapDelta"}}Ba.register(Ka);class Ga extends La{get type(){return"insert"}get position(){return this._insertOperation?this._insertOperation.position:null}get nodes(){return this._insertOperation?this._insertOperation.nodes:null}get _insertOperation(){return this.operations[0]||null}get _reverseDeltaClass(){return Wa}static get className(){return"engine.model.delta.InsertDelta"}}Ba.register(Ga);class Ja extends Ga{static get className(){return"engine.model.delta.WeakInsertDelta"}}Ba.register(Ja);var Qa=function(t,e,n={isStrong:!1}){let o,i;t instanceof Oa?o=Ya.InsertOperation:t instanceof Ta?o=Ya.AttributeOperation:t instanceof Fa?o=Ya.RootAttributeOperation:t instanceof Ma?o=Ya.RenameOperation:t instanceof Ra?o=Ya.MarkerOperation:t instanceof Sa?o=Ya.MoveOperation:i=Xa;o&&(i=e instanceof Oa?o.InsertOperation:e instanceof Ta?o.AttributeOperation:e instanceof Fa?o.RootAttributeOperation:e instanceof Ma?o.RenameOperation:e instanceof Ra?o.MarkerOperation:e instanceof Sa?o.MoveOperation:Xa);const r=i(t,e,n);return function(t,e){for(let n=0;n<e.length;n++)e[n].baseVersion=t+n+1;return e}(t.baseVersion,r)};const Ya={InsertOperation:{InsertOperation(t,e,n){const o=t.clone(),i=void 0===n.insertBefore?!n.isStrong:n.insertBefore;return o.position=o.position._getTransformedByInsertion(e.position,e.nodes.maxOffset,i),[o]},AttributeOperation:Xa,RootAttributeOperation:Xa,RenameOperation:Xa,MarkerOperation:Xa,MoveOperation(t,e,n){const o=t.clone(),i=void 0===n.insertBefore?!n.isStrong:n.insertBefore;return o.position=t.position._getTransformedByMove(e.sourcePosition,e.targetPosition,e.howMany,i,e.isSticky&&!n.forceNotSticky),[o]}},AttributeOperation:{InsertOperation:(t,e)=>t.range._getTransformedByInsertion(e.position,e.nodes.maxOffset,!0,!1).reverse().map(e=>new Ta(e,t.key,t.oldValue,t.newValue,t.baseVersion)),AttributeOperation(t,e,n){if(t.key===e.key){const o=t.range.getDifference(e.range).map(e=>new Ta(e,t.key,t.oldValue,t.newValue,t.baseVersion)),i=t.range.getIntersection(e.range);return i&&(n.isStrong?o.push(new Ta(i,e.key,e.newValue,t.newValue,t.baseVersion)):0===o.length&&o.push(new Ia(0))),o}return[t.clone()]},RootAttributeOperation:Xa,RenameOperation:Xa,MarkerOperation:Xa,MoveOperation(t,e){const n=_s.createFromPositionAndShift(e.sourcePosition,e.howMany);let o=[];const i=function(t){return 0===t.length?null:1==t.length?t[0]:(t[0].end=t[t.length-1].end,t[0])}(t.range.getDifference(n)),r=t.range.getIntersection(n);return null!==i&&(i.start=i.start._getTransformedByDeletion(e.sourcePosition,e.howMany),i.end=i.end._getTransformedByDeletion(e.sourcePosition,e.howMany),o=i._getTransformedByInsertion(e.getMovedRangeStart(),e.howMany,!0,!1).reverse()),null!==r&&(r.start=r.start._getCombined(e.sourcePosition,e.getMovedRangeStart()),r.end=r.end._getCombined(e.sourcePosition,e.getMovedRangeStart()),o.push(r)),o.map(e=>new Ta(e,t.key,t.oldValue,t.newValue,t.baseVersion))}},RootAttributeOperation:{InsertOperation:Xa,AttributeOperation:Xa,RootAttributeOperation:(t,e,n)=>t.root!==e.root||t.key!==e.key||(t.newValue===e.newValue||n.isStrong)&&t.newValue!==e.newValue?[t.clone()]:[new Ia(t.baseVersion)],RenameOperation:Xa,MarkerOperation:Xa,MoveOperation:Xa},RenameOperation:{InsertOperation(t,e){const n=t.clone();return n.position=n.position._getTransformedByInsertion(e.position,e.nodes.maxOffset,!0),[n]},AttributeOperation:Xa,RootAttributeOperation:Xa,RenameOperation(t,e,n){const o=t.clone();if(t.position.isEqual(e.position)){if(!n.isStrong)return[new Ia(t.baseVersion)];o.oldName=e.newName}return[o]},MarkerOperation:Xa,MoveOperation(t,e){const n=t.clone(),o=n.position.isEqual(e.sourcePosition);return n.position=n.position._getTransformedByMove(e.sourcePosition,e.targetPosition,e.howMany,!0,o),[n]}},MarkerOperation:{InsertOperation(t,e){const n=t.clone();return n.oldRange&&(n.oldRange=n.oldRange._getTransformedByInsertion(e.position,e.nodes.maxOffset,!1,!1)[0]),n.newRange&&(n.newRange=n.newRange._getTransformedByInsertion(e.position,e.nodes.maxOffset,!1,!1)[0]),[n]},AttributeOperation:Xa,RootAttributeOperation:Xa,RenameOperation:Xa,MarkerOperation(t,e,n){const o=t.clone();if(t.name==e.name){if(!n.isStrong)return[new Ia(t.baseVersion)];o.oldRange=e.newRange}return[o]},MoveOperation(t,e){const n=t.clone();if(n.oldRange){const t=n.oldRange._getTransformedByMove(e.sourcePosition,e.targetPosition,e.howMany);n.oldRange=_s.createFromRanges(t)}if(n.newRange){const t=n.newRange._getTransformedByMove(e.sourcePosition,e.targetPosition,e.howMany);n.newRange=_s.createFromRanges(t)}return[n]}},MoveOperation:{InsertOperation(t,e,n){let o=_s.createFromPositionAndShift(t.sourcePosition,t.howMany);const i=t.isSticky&&!n.forceNotSticky;o=o._getTransformedByInsertion(e.position,e.nodes.maxOffset,!1,i)[0];const r=void 0===n.insertBefore?!n.isStrong:n.insertBefore,s=new t.constructor(o.start,o.end.offset-o.start.offset,t.targetPosition._getTransformedByInsertion(e.position,e.nodes.maxOffset,r),t.baseVersion);return s.isSticky=t.isSticky,[s]},AttributeOperation:Xa,RootAttributeOperation:Xa,RenameOperation:Xa,MarkerOperation:Xa,MoveOperation(t,e,n){const o=_s.createFromPositionAndShift(t.sourcePosition,t.howMany),i=_s.createFromPositionAndShift(e.sourcePosition,e.howMany);let r=n.isStrong;const s=t.isSticky&&!n.forceNotSticky,a=void 0===n.insertBefore?!r:n.insertBefore,c=t.targetPosition._getTransformedByMove(e.sourcePosition,e.targetPosition,e.howMany,a,e.isSticky&&!n.forceNotSticky);if(Za(t,e)&&Za(e,t))return[e.getReversed()];const l=o.containsPosition(e.targetPosition)||o.start.isEqual(e.targetPosition)&&s||o.end.isEqual(e.targetPosition)&&s;if(l&&o.containsRange(i,!0))return o.start=o.start._getTransformedByMove(e.sourcePosition,e.targetPosition,e.howMany,!s),o.end=o.end._getTransformedByMove(e.sourcePosition,e.targetPosition,e.howMany,s),tc([o],c,t);if((i.containsPosition(t.targetPosition)||i.start.isEqual(t.targetPosition)&&e.isSticky&&!n.forceNotSticky||i.end.isEqual(t.targetPosition)&&e.isSticky&&!n.forceNotSticky)&&i.containsRange(o,!0))return 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null!==f&&r&&!l&&(f.start=f.start._getCombined(e.sourcePosition,e.getMovedRangeStart()),f.end=f.end._getCombined(e.sourcePosition,e.getMovedRangeStart()),0===u.length?u.push(f):1==u.length?i.start.isBefore(o.start)||i.start.isEqual(o.start)?u.unshift(f):u.push(f):u.splice(1,0,f)),0===u.length?[new Ia(t.baseVersion)]:tc(u,c,t)}}};function Xa(t){return[t.clone()]}function Za(t,e){return null===t.targetPosition._getTransformedByDeletion(e.sourcePosition,e.howMany)}function tc(t,e,n){const o=[];for(let i=0;i<t.length;i++){const r=ec(t[i],e,n.isSticky);o.push(r);for(let e=i+1;e<t.length;e++)t[e]=t[e]._getTransformedByMove(r.sourcePosition,r.targetPosition,r.howMany)[0];e=e._getTransformedByMove(r.sourcePosition,r.targetPosition,r.howMany,!0,!1)}return o}function ec(t,e,n){let o;const i=new(o="$graveyard"==e.root.rootName?Pa:"$graveyard"==t.start.root.rootName?Ea:Sa)(t.start,t.end.offset-t.start.offset,e,0);return i.isSticky=n,i}var nc=function(t,e,n){var 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o=(tu.getTransformationCase(t,e)||tu.defaultTransform)(t,e,Object.assign({},n));return function(t,e){for(const n of e)for(const e of n.operations)e.baseVersion=++t;return e}(Xd.last(e.operations).baseVersion,o)},defaultTransform(t,e,n){const o=[];let i=e.operations,r=[];for(const e of t.operations){const t=[e];for(const e of i)for(let o=0;o<t.length;o++){const i=t[o],s=Qa(i,e,n);Array.prototype.splice.apply(t,[o,1].concat(s)),o+=s.length-1;const a=Object.assign({},n);a.isStrong=!n.isStrong,a.insertBefore=void 0!==n.insertBefore?!n.insertBefore:void 0;const c=Qa(e,i,a);Array.prototype.push.apply(r,c)}i=r,r=[];for(const e of t)o.push(e)}return function t(e,n){let o=[];let i=null;let r;switch(e){case Ua:case Wa:for(const t of n)(i=t instanceof Ia?new La:t instanceof Pa?new Wa:new Ua).addOperation(t),o.push(i);return o;case za:case $a:return(i=new e).addOperation(n[0]),i.addOperation(n[1]),o=t(Ua,n.slice(2)),[i].concat(o);case qa:case Ka:return o=t(Ua,n.slice(0,-2)),(i=new e).addOperation(n[n.length-2]),i.addOperation(n[n.length-1]),o.concat(i);case Ha:return(i=n[0]instanceof Ia?new La:new Ha).addOperation(n[0]),[i];case ja:for(r=0;r<n.length&&n[r]instanceof Ia;r++);r==n.length?i=new La:(i=new ja,0!=r&&n.unshift(n.splice(r,1)[0]));for(const t of n)i.addOperation(t);return[i];default:i=new e;for(const t of n)i.addOperation(t);return[i]}}(t.constructor,o)},addTransformationCase(t,e,n){let o=Zd.get(t);o||(o=new Map,Zd.set(t,o)),o.set(e,n)},getTransformationCase(t,e){let n=Zd.get(t.constructor);if(!n||!n.get(e.constructor)){const o=Zd.keys();for(const i of o)if(t instanceof i&&Zd.get(i).get(e.constructor)){n=Zd.get(i);break}}if(n)return n.get(e.constructor)},transformDeltaSets(t,e,n=null){const o=Array.from(t),i=Array.from(e),r=null!==n,s={isStrong:!0};if(r){s.wasAffected=new Map,s.originalDelta=new Map,s.document=n,s.undoMode=!0;for(const t of i)s.originalDelta.set(t,t)}for(let t=0;t<o.length;t++){const e=[o[t]];for(let t=0;t<i.length;t++){const n=[i[t]];for(let t=0;t<e.length;t++)for(let o=0;o<n.length;o++){r&&iu(e[t],n[o],s);const i=tu.transform(e[t],n[o],{insertBefore:s.insertBefore,forceNotSticky:s.forceNotSticky,isStrong:s.isStrong,forceWeakRemove:s.forceWeakRemove,undoMode:s.undoMode}),a=tu.transform(n[o],e[t],{insertBefore:!s.insertBefore,forceNotSticky:s.forceNotSticky,isStrong:!s.isStrong,forceWeakRemove:s.forceWeakRemove,undoMode:s.undoMode});if(r){su(e[t],i,s);const r=s.originalDelta.get(n[o]);for(const t of a)s.originalDelta.set(t,r)}e.splice(t,1,...i),t+=i.length-1,n.splice(o,1,...a),o+=a.length-1}i.splice(t,1,...n),t+=n.length-1}o.splice(t,1,...e),t+=e.length-1}const a=nu(o)-nu(t),c=nu(i)-nu(e);return c<a?ou(i,a-c):a<c&&ou(o,c-a),{deltasA:o,deltasB:i}}};var eu=tu;function nu(t){return t.reduce((t,e)=>t+e.operations.length,0)}function ou(t,e){const n=t[t.length-1];let o=n.operations.length+n.baseVersion;const i=new La;for(let t=0;t<e;t++)i.addOperation(new Ia(o++));t.push(i)}function iu(t,e,n){!function(t,e,n){n.wasAffected.get(t)||n.wasAffected.set(t,new Map);const o=n.originalDelta.get(e);let i=!!n.wasAffected.get(t).get(o);for(const n of t.operations){for(const t of e.operations)if(n instanceof Sa&&t instanceof Sa&&ru(n,t)){i=!0;break}if(i)break}n.wasAffected.get(t).set(o,i)}(t,e,n),function(t,e,n){const o=n.originalDelta.get(e);if(n.document.history.isUndoingDelta(o)){const e=n.document.history.getUndoneDelta(o),i=n.wasAffected.get(t),r=i.get(e);void 0!==r&&(n.insertBefore=r)}}(t,e,n),function(t,e){const n=e.document.history,o=e.originalDelta.get(t);e.forceWeakRemove=n.isUndoneDelta(o)}(e,n),function(t,e){const n=e.originalDelta.get(t),o=e.document.history;e.forceNotSticky=o.isUndoneDelta(n)||o.isUndoingDelta(n)}(e,n)}function ru(t,e){const n=t.targetPosition,o=e.sourcePosition,i=En(o.getParentPath(),n.getParentPath());return n.root==o.root&&("same"==i&&o.offset<n.offset)}function su(t,e,n){delete n.insertBefore,delete n.forceNotSticky,delete n.forceWeakRemove;const o=n.wasAffected.get(t);n.wasAffected.delete(t);for(const t of e)n.wasAffected.set(t,new Map(o))}class au extends La{get type(){return"marker"}get _reverseDeltaClass(){return au}static get className(){return"engine.model.delta.MarkerDelta"}}Ba.register(au);const cu=eu.addTransformationCase,lu=eu.defaultTransform;function du(t,e){const n=t.clone(),o=n.operations[0];return o.oldRange&&(o.oldRange=o.oldRange.getTransformedByDelta(e)[0]),o.newRange&&(o.newRange=o.newRange.getTransformedByDelta(e)[0]),[n]}function uu(t,e){const n=new ja,o=t.nodes;let i=o.getNode(0).getAttribute(e.key),r=0,s=o.getNode(0).offsetSize;for(let t=1;t<o.length;t++){const n=o.getNode(t),c=n.getAttribute(e.key);c!=i&&(i!=e.value&&a(),i=c,r=s),s+=n.offsetSize}return a(),n;function a(){const o=new _s(t.position.getShiftedBy(r),t.position.getShiftedBy(s)),a=new Ta(o,e.key,i,e.value,0);n.addOperation(a)}}function hu(){const t=new La;return t.addOperation(new Ia(0)),t}cu(ja,Ja,(t,e,n)=>{const o=lu(t,e,n);return t.range.containsPosition(e.position)&&o.push(uu(e,t)),o}),cu(ja,za,(t,e,n)=>{if(!e.position)return lu(t,e,n);const o=n.undoMode,i=new vs(e.position.root,e.position.path.slice(0,-1)),r=lu(t,e,n);if(o||!(e._cloneOperation instanceof Oa))return r;for(const n of t.operations)if(n.range.containsPosition(i)||n.range.start.isEqual(i)){const t=new ja,o=i.getShiftedBy(1),s=vs.createFromPosition(o);s.path.push(0);const a=e._cloneOperation.nodes.getNode(0).getAttribute(n.key);t.addOperation(new Ta(new _s(o,s),n.key,void 0===a?null:a,n.newValue,0)),r.push(t);break}return r}),cu(Ga,qa,(t,e,n)=>{if(!e.position)return lu(t,e,n);return!n.undoMode&&t.position.isEqual(e.position)?[e.getReversed(),t.clone()]:lu(t,e,n)}),cu(au,za,du),cu(au,qa,du),cu(au,$a,du),cu(au,Ka,du),cu(au,Ua,du),cu(au,Ha,du),cu(Ua,qa,(t,e,n)=>{if(n.undoMode||!e.position)return lu(t,e,n);const o=t.sourcePosition.root==e.position.root&&"same"===En(t.sourcePosition.getParentPath(),e.position.getParentPath()),i=t.sourcePosition.offset<=e.position.offset&&t.sourcePosition.offset+t.howMany>e.position.offset;return o&&i?[e.getReversed(),t.clone()]:lu(t,e,n)}),cu(qa,Ga,(t,e,n)=>{if(!t.position)return lu(t,e,n);return!n.undoMode&&t.position.isEqual(e.position)?[hu()]:lu(t,e,n)}),cu(qa,Ua,(t,e,n)=>{if(n.undoMode||!t.position)return lu(t,e,n);const o=t.position.root==e.sourcePosition.root&&"same"===En(t.position.getParentPath(),e.sourcePosition.getParentPath()),i=e.sourcePosition.offset<=t.position.offset&&e.sourcePosition.offset+e.howMany>t.position.offset;return o&&i?[hu()]:lu(t,e,n)}),cu(za,za,(t,e,n)=>{if(n.undoMode)return lu(t,e,n);if(!t.position||!e.position)return lu(t,e,n);const o=t.position.getParentPath(),i=e.position.getParentPath();if(t.position.root==e.position.root&&"same"==En(o,i)){if((t=t.clone()).position.offset<e.position.offset||t.position.offset==e.position.offset&&n.isStrong){t._cloneOperation instanceof Ea&&e._cloneOperation instanceof Ea&&t._cloneOperation.sourcePosition.offset>e._cloneOperation.sourcePosition.offset&&t._cloneOperation.sourcePosition.offset--;const n=_s.createFromPositionAndShift(t.position,t._moveOperation.howMany),o=_s.createFromPositionAndShift(e.position,e._moveOperation.howMany),i=n.getDifference(o);let r=0;for(const t of i)r+=t.end.offset-t.start.offset;return 0===r?(t.operations.pop(),t.addOperation(new Ia(t.operations[0].baseVersion+1))):t.operations[1].howMany=r,[t]}{const o=Object.assign({},n);return o.isStrong=!0,o.insertBefore=!0,lu(t,e,o)}}return lu(t,e,n)}),cu(za,Ka,(t,e,n)=>t.position&&t.position.root==e.position.root&&"same"===En(e.position.path,t.position.getParentPath())?[hu()]:lu(t,e,n)),cu(za,$a,(t,e,n)=>{if(!t.position)return lu(t,e,n);const o=t.position.root==e.range.start.root,i=o&&"same"===En(t.position.getParentPath(),e.range.start.getParentPath()),r=e.range.start.offset<t.position.offset&&e.range.end.offset>=t.position.offset;if(i&&r)return[hu()];if(o&&"same"===En(t.position.getParentPath(),e.range.end.getShiftedBy(-1).path)){const n=t.clone(),o=vs.createFromPosition(e.range.start);o.path.push(e.howMany-1);const i=o.getShiftedBy(1);n._cloneOperation.position=i;const r=vs.createFromPosition(o);r.path.push(t.position.offset),n._moveOperation.sourcePosition=r;const s=vs.createFromPosition(i);return s.path.push(0),n._moveOperation.targetPosition=s,[n]}return lu(t,e,n)}),cu(za,ja,(t,e,n)=>{if(!t.position)return lu(t,e,n);t=t.clone();const o=n.undoMode,i=new vs(t.position.root,t.position.path.slice(0,-1));if(o||!(t._cloneOperation instanceof Oa))return[t];for(const n of e.operations)if(n.range.containsPosition(i)||n.range.start.isEqual(i)){null!==n.newValue?t._cloneOperation.nodes.getNode(0)._setAttribute(n.key,n.newValue):t._cloneOperation.nodes.getNode(0)._removeAttribute(n.key);break}return[t]}),cu(Ka,za,(t,e,n)=>e.position&&t.position.root==e.position.root&&"same"===En(t.position.path,e.position.getParentPath())?[e.getReversed(),t.clone()]:lu(t,e,n)),cu(Ja,ja,(t,e)=>{const n=[t.clone()];return e.range.containsPosition(t.position)&&n.push(uu(t,e)),n}),cu($a,za,(t,e,n)=>{if(!e.position)return lu(t,e,n);const o=t.range.start.root==e.position.root,i=o&&"same"===En(t.range.start.getParentPath(),e.position.getParentPath()),r=t.range.start.offset<e.position.offset&&t.range.end.offset>=e.position.offset;if(i&&r)return[e.getReversed(),t.clone()];if(o&&"same"===En(e.position.getParentPath(),t.range.end.getShiftedBy(-1).path)){const e=t.clone();return e._insertOperation.position.offset++,e._moveOperation.howMany++,e._moveOperation.targetPosition.path[e._moveOperation.targetPosition.path.length-2]++,[e]}return lu(t,e,n)}),cu(Ha,za,(t,e,n)=>{const o=n.undoMode,i=lu(t,e,n);if(o||!(e._cloneOperation instanceof Oa))return i;const r=e._cloneOperation.position.getShiftedBy(-1);if(r&&t.operations[0].position.isEqual(r)){const e=t.clone();e.operations[0].position=r.getShiftedBy(1),i.push(e)}return i}),cu(za,Ha,(t,e,n)=>{t=t.clone();const o=n.undoMode;if(o||!(t._cloneOperation instanceof Oa))return[t];const i=t._cloneOperation.position.getShiftedBy(-1);if(i&&!o&&e.operations[0].position.isEqual(i)){const n=e.clone();return n.operations[0].position=i.getShiftedBy(1),n.operations[0].oldName=t._cloneOperation.nodes.getNode(0).name,[t,n]}return[t]}),cu(Wa,za,(t,e,n)=>{const o=lu(t,e,n),i=e._cloneOperation.position||e._cloneOperation.targetPosition;if(!i)return lu(t,e,n);if(n.undoMode)return o;for(const t of o)if(t instanceof Wa){const e=t._moveOperation;e.sourcePosition.getShiftedBy(e.howMany).isEqual(i)&&(e.howMany+=1)}return o}),cu(za,Wa,(t,e,n)=>{if(n.undoMode)return lu(t,e,n);const o=t._cloneOperation.position||t._cloneOperation.targetPosition;if(!o)return lu(t,e,n);const i=(e=e.clone())._moveOperation;return i.sourcePosition.getShiftedBy(i.howMany).isEqual(o)&&(i.howMany+=1),lu(t,e,n)});class fu{constructor(t="default"){this.deltas=[],this.type=t}get baseVersion(){for(const t of this.deltas)if(null!==t.baseVersion)return t.baseVersion;return null}addDelta(t){return t.batch=this,this.deltas.push(t),t}*getOperations(){for(const t of this.deltas)yield*t.operations}}class pu extends La{static get className(){return"engine.model.delta.RootAttributeDelta"}}Ba.register(pu);class mu extends ba{constructor(t,e){super(null),this.sourcePosition=vs.createFromPosition(t),this.howMany=e}get type(){return"detach"}_validate(){if(this.sourcePosition.root.document)throw new m.b("detach-operation-on-document-node: Cannot detach document node.")}_execute(){_a(_s.createFromPositionAndShift(this.sourcePosition,this.howMany))}static get className(){return"engine.model.operation.DetachOperation"}}class gu extends ms{constructor(t,e,n="main"){super(e),this._doc=t,this.rootName=n}get document(){return this._doc}is(t,e){return e?"rootElement"==t&&e==this.name||super.is(t,e):"rootElement"==t||super.is(t)}toJSON(){return this.rootName}}class bu{constructor(t,e){this.model=t,this.batch=e}createText(t,e){return new hs(t,e)}createElement(t,e){return new ms(t,e)}createDocumentFragment(){return new wa}insert(t,e,n){this._assertWriterUsedCorrectly();const o=vs.createAt(e,n),i=t instanceof hs&&!t.parent?new Ja:new Ga;if(t.parent){if(yu(t.root,o.root))return void this.move(_s.createOn(t),o);if(t.root.document)throw new Error("model-writer-insert-forbidden-move: Cannot move a node from a document to a different tree.");this.remove(t)}const r=o.root.document?o.root.document.version:null,s=new Oa(o,t,r);if(this.batch.addDelta(i),i.addOperation(s),this.model.applyOperation(s),t instanceof wa)for(const[e,n]of t.markers){const t=vs.createAt(n.root),i=new _s(n.start._getCombined(t,o),n.end._getCombined(t,o));this.addMarker(e,{range:i,usingOperation:!0})}}insertText(t,e,n,o){e instanceof wa||e instanceof ms||e instanceof vs?this.insert(this.createText(t),e,n):this.insert(this.createText(t,e),n,o)}insertElement(t,e,n,o){e instanceof wa||e instanceof ms||e instanceof vs?this.insert(this.createElement(t),e,n):this.insert(this.createElement(t,e),n,o)}append(t,e){this.insert(t,e,"end")}appendText(t,e,n){e instanceof wa||e instanceof ms?this.insert(this.createText(t),e,"end"):this.insert(this.createText(t,e),n,"end")}appendElement(t,e,n){e instanceof wa||e instanceof ms?this.insert(this.createElement(t),e,"end"):this.insert(this.createElement(t,e),n,"end")}setAttribute(t,e,n){this._assertWriterUsedCorrectly(),n instanceof _s?wu(this,t,e,n):vu(this,t,e,n)}setAttributes(t,e){for(const[n,o]of ds(t))this.setAttribute(n,o,e)}removeAttribute(t,e){this._assertWriterUsedCorrectly(),e instanceof _s?wu(this,t,null,e):vu(this,t,null,e)}clearAttributes(t){this._assertWriterUsedCorrectly();const e=t=>{for(const e of t.getAttributeKeys())this.removeAttribute(e,t)};if(t instanceof _s)for(const n of t.getItems())e(n);else e(t)}move(t,e,n){if(this._assertWriterUsedCorrectly(),!(t instanceof _s))throw new m.b("writer-move-invalid-range: Invalid range to move.");if(!t.isFlat)throw new m.b("writer-move-range-not-flat: Range to move is not flat.");const o=vs.createAt(e,n);if(!yu(t.root,o.root))throw new m.b("writer-move-different-document: Range is going to be moved between different documents.");const i=new Ua;this.batch.addDelta(i);const r=t.root.document?t.root.document.version:null,s=new Sa(t.start,t.end.offset-t.start.offset,o,r);i.addOperation(s),this.model.applyOperation(s)}remove(t){this._assertWriterUsedCorrectly();const e=(t,e)=>{const n=new Wa;this.batch.addDelta(n),ku(t,e,n,this.model)};if(t instanceof _s){const n=t.getMinimalFlatRanges().reverse();for(const t of n)e(t.start,t.end.offset-t.start.offset)}else{const n=t.is("text")?t.offsetSize:1;e(vs.createBefore(t),n)}}merge(t){this._assertWriterUsedCorrectly();const e=new qa;this.batch.addDelta(e);const n=t.nodeBefore,o=t.nodeAfter;if(!(n instanceof ms))throw new m.b("writer-merge-no-element-before: Node before merge position must be an element.");if(!(o instanceof ms))throw new m.b("writer-merge-no-element-after: Node after merge position must be an element.");const i=vs.createFromParentAndOffset(o,0),r=vs.createFromParentAndOffset(n,n.maxOffset),s=t.root.document?t.root.document.version:null,a=new Sa(i,o.maxOffset,r,s);a.isSticky=!0,e.addOperation(a),this.model.applyOperation(a),ku(t,1,e,this.model)}rename(t,e){if(this._assertWriterUsedCorrectly(),!(t instanceof ms))throw new m.b("writer-rename-not-element-instance: Trying to rename an object which is not an instance of Element.");const n=new Ha;this.batch.addDelta(n);const o=t.root.document?t.root.document.version:null,i=new Ma(vs.createBefore(t),t.name,e,o);n.addOperation(i),this.model.applyOperation(i)}split(t,e){this._assertWriterUsedCorrectly();let n,o,i=t.parent;if(!i.parent)throw new m.b("writer-split-element-no-parent: Element with no parent can not be split.");if(e||(e=i.parent),!t.parent.getAncestors({includeSelf:!0}).includes(e))throw new m.b("writer-split-invalid-limit-element: Limit element is not a position ancestor.");do{const e=new za;this.batch.addDelta(e);const r=new ms(i.name,i.getAttributes()),s=i.root.document?i.root.document.version:null,a=new Oa(vs.createAfter(i),r,s);e.addOperation(a),this.model.applyOperation(a);const c=null!==s?s+1:null,l=new Sa(t,i.maxOffset-t.offset,vs.createFromParentAndOffset(r,0),c);l.isSticky=!0,e.addOperation(l),this.model.applyOperation(l),n||o||(n=i,o=r),i=(t=vs.createBefore(r)).parent}while(i!==e);return{position:t,range:new _s(vs.createAt(n,"end"),vs.createAt(o))}}wrap(t,e){if(this._assertWriterUsedCorrectly(),!t.isFlat)throw new m.b("writer-wrap-range-not-flat: Range to wrap is not flat.");const n=e instanceof ms?e:new ms(e);if(n.childCount>0)throw new m.b("writer-wrap-element-not-empty: Element to wrap with is not empty.");if(null!==n.parent)throw new m.b("writer-wrap-element-attached: Element to wrap with is already attached to tree model.");const o=new $a;this.batch.addDelta(o);const i=t.root.document?t.root.document.version:null,r=new Oa(t.end,n,i);o.addOperation(r),this.model.applyOperation(r);const s=null!==i?i+1:null,a=vs.createFromParentAndOffset(n,0),c=new Sa(t.start,t.end.offset-t.start.offset,a,s);o.addOperation(c),this.model.applyOperation(c)}unwrap(t){if(this._assertWriterUsedCorrectly(),null===t.parent)throw new m.b("writer-unwrap-element-no-parent: Trying to unwrap an element which has no parent.");const e=new Ka;this.batch.addDelta(e);const n=vs.createFromParentAndOffset(t,0),o=n.root.document?n.root.document.version:null,i=new Sa(n,t.maxOffset,vs.createBefore(t),o);i.isSticky=!0,e.addOperation(i),this.model.applyOperation(i),ku(vs.createBefore(t),1,e,this.model)}addMarker(t,e){if(this._assertWriterUsedCorrectly(),!e||"boolean"!=typeof e.usingOperation)throw new m.b("writer-addMarker-no-usingOperations: The options.usingOperations parameter is required when adding a new marker.");const n=e.usingOperation,o=e.range,i=void 0!==e.affectsData&&e.affectsData;if(this.model.markers.has(t))throw new m.b("writer-addMarker-marker-exists: Marker with provided name already exists.");if(!o)throw new m.b("writer-addMarker-no-range: Range parameter is required when adding a new marker.");return n?(_u(this,t,null,o,i),this.model.markers.get(t)):this.model.markers._set(t,o,n,i)}updateMarker(t,e={}){this._assertWriterUsedCorrectly();const n="string"==typeof t?t:t.name,o=this.model.markers.get(n);if(!o)throw new m.b("writer-updateMarker-marker-not-exists: Marker with provided name does not exists.");const i="boolean"==typeof e.usingOperation,r="boolean"==typeof e.affectsData,s=r?e.affectsData:o.affectsData;if(!i&&!e.range&&!r)throw new m.b("writer-updateMarker-wrong-options: One of the options is required - provide range, usingOperations or affectsData.");const a=o.getRange(),c=e.range?e.range:a;i&&e.usingOperation!==o.managedUsingOperations?e.usingOperation?_u(this,n,null,c,s):(_u(this,n,a,null,s),this.model.markers._set(n,c,void 0,s)):o.managedUsingOperations?_u(this,n,a,c,s):this.model.markers._set(n,c,void 0,s)}removeMarker(t){this._assertWriterUsedCorrectly();const e="string"==typeof t?t:t.name;if(!this.model.markers.has(e))throw new m.b("writer-removeMarker-no-marker: Trying to remove marker which does not exist.");const n=this.model.markers.get(e);n.managedUsingOperations?_u(this,e,n.getRange(),null,n.affectsData):this.model.markers._remove(e)}setSelection(t,e,n){this._assertWriterUsedCorrectly(),this.model.document.selection._setTo(t,e,n)}setSelectionFocus(t,e){this._assertWriterUsedCorrectly(),this.model.document.selection._setFocus(t,e)}setSelectionAttribute(t,e){if(this._assertWriterUsedCorrectly(),"string"==typeof t)this._setSelectionAttribute(t,e);else for(const[e,n]of ds(t))this._setSelectionAttribute(e,n)}removeSelectionAttribute(t){if(this._assertWriterUsedCorrectly(),"string"==typeof t)this._removeSelectionAttribute(t);else for(const e of t)this._removeSelectionAttribute(e)}overrideSelectionGravity(){return this.model.document.selection._overrideGravity()}restoreSelectionGravity(t){this.model.document.selection._restoreGravity(t)}_setSelectionAttribute(t,e){const n=this.model.document.selection;if(n.isCollapsed&&n.anchor.parent.isEmpty){const o=Rs._getStoreAttributeKey(t);this.setAttribute(o,e,n.anchor.parent)}n._setAttribute(t,e)}_removeSelectionAttribute(t){const e=this.model.document.selection;if(e.isCollapsed&&e.anchor.parent.isEmpty){const n=Rs._getStoreAttributeKey(t);this.removeAttribute(n,e.anchor.parent)}e._removeAttribute(t)}_assertWriterUsedCorrectly(){if(this.model._currentWriter!==this)throw new m.b("writer-incorrect-use: Trying to use a writer outside the change() block.")}}function wu(t,e,n,o){const i=new ja,r=t.model,s=r.document;let a,c,l,d=o.start;for(const t of o)l=t.item.getAttribute(e),a&&c!=l&&(c!=n&&u(),d=a),a=t.nextPosition,c=l;function u(){0===i.operations.length&&t.batch.addDelta(i);const o=new _s(d,a),l=o.root.document?s.version:null,u=new Ta(o,e,c,n,l);i.addOperation(u),r.applyOperation(u)}a instanceof vs&&a!=d&&c!=n&&u()}function vu(t,e,n,o){const i=t.model,r=i.document,s=o.getAttribute(e);let a,c;if(s!=n){const l=o.root===o,d=l?new pu:new ja;if(t.batch.addDelta(d),l){const t=o.document?r.version:null;c=new Fa(o,e,s,n,t)}else{const t=(a=o.is("element")?new _s(vs.createBefore(o),vs.createFromParentAndOffset(o,0)):new _s(vs.createBefore(o),vs.createAfter(o))).root.document?r.version:null;c=new Ta(a,e,s,n,t)}d.addOperation(c),i.applyOperation(c)}}function _u(t,e,n,o,i){const r=t.model,s=r.document,a=new au,c=new Ra(e,n,o,r.markers,s.version,i);t.batch.addDelta(a),a.addOperation(c),r.applyOperation(c)}function ku(t,e,n,o){let i;if(t.root.document){const n=o.document,r=new vs(n.graveyard,[0]);i=new Pa(t,e,r,n.version)}else i=new mu(t,e);n.addOperation(i),o.applyOperation(i)}function yu(t,e){return t===e||t instanceof gu&&e instanceof gu}class xu{constructor(t){this._markerCollection=t,this._changesInElement=new Map,this._elementSnapshots=new Map,this._changedMarkers=new Map,this._changeCount=0,this._cachedChanges=null,this._cachedChangesWithGraveyard=null}get isEmpty(){return 0==this._changesInElement.size&&0==this._changedMarkers.size}bufferOperation(t){switch(t.type){case"insert":if(this._isInInsertedElement(t.position.parent))return;this._markInsert(t.position.parent,t.position.offset,t.nodes.maxOffset);break;case"addAttribute":case"removeAttribute":case"changeAttribute":for(const e of t.range.getItems())this._isInInsertedElement(e.parent)||this._markAttribute(e);break;case"remove":case"move":case"reinsert":{const e=this._isInInsertedElement(t.sourcePosition.parent),n=this._isInInsertedElement(t.targetPosition.parent);e||this._markRemove(t.sourcePosition.parent,t.sourcePosition.offset,t.howMany),n||this._markInsert(t.targetPosition.parent,t.getMovedRangeStart().offset,t.howMany);break}case"rename":{if(this._isInInsertedElement(t.position.parent))return;this._markRemove(t.position.parent,t.position.offset,1),this._markInsert(t.position.parent,t.position.offset,1);const e=_s.createFromPositionAndShift(t.position,1);for(const t of this._markerCollection.getMarkersIntersectingRange(e)){const e=t.getRange();this.bufferMarkerChange(t.name,e,e,t.affectsData)}break}}this._cachedChanges=null}bufferMarkerChange(t,e,n,o){const i=this._changedMarkers.get(t);i?(i.newRange=n,i.affectsData=o,null==i.oldRange&&null==i.newRange&&this._changedMarkers.delete(t)):this._changedMarkers.set(t,{oldRange:e,newRange:n,affectsData:o})}getMarkersToRemove(){const t=[];for(const[e,n]of this._changedMarkers)null!=n.oldRange&&t.push({name:e,range:n.oldRange});return t}getMarkersToAdd(){const t=[];for(const[e,n]of this._changedMarkers)null!=n.newRange&&t.push({name:e,range:n.newRange});return t}hasDataChanges(){for(const[,t]of this._changedMarkers)if(t.affectsData)return!0;return this._changesInElement.size>0}getChanges(t={includeChangesInGraveyard:!1}){if(this._cachedChanges)return t.includeChangesInGraveyard?this._cachedChangesWithGraveyard.slice():this._cachedChanges.slice();const e=[];for(const t of this._changesInElement.keys()){const n=this._changesInElement.get(t).sort((t,e)=>t.offset===e.offset?t.type!=e.type?"remove"==t.type?-1:1:0:t.offset<e.offset?-1:1),o=this._elementSnapshots.get(t),i=Au(t.getChildren()),r=Cu(o.length,n);let s=0,a=0;for(const n of r)if("i"===n)e.push(this._getInsertDiff(t,s,i[s].name)),s++;else if("r"===n)e.push(this._getRemoveDiff(t,s,o[a].name)),a++;else if("a"===n){const n=i[s].attributes,r=o[a].attributes;let c;if("$text"==i[s].name)c=_s.createFromParentsAndOffsets(t,s,t,s+1);else{const e=t.offsetToIndex(s);c=_s.createFromParentsAndOffsets(t,s,t.getChild(e),0)}e.push(...this._getAttributesDiff(c,r,n)),s++,a++}else s++,a++}e.sort((t,e)=>t.position.root!=e.position.root?t.position.root.rootName<e.position.root.rootName?-1:1:t.position.isEqual(e.position)?t.changeCount<e.changeCount?-1:1:t.position.isBefore(e.position)?-1:1);for(let t=1;t<e.length;t++){const n=e[t-1],o=e[t],i="remove"==n.type&&"remove"==o.type&&"$text"==n.name&&"$text"==o.name&&n.position.isEqual(o.position),r="insert"==n.type&&"insert"==o.type&&"$text"==n.name&&"$text"==o.name&&n.position.parent==o.position.parent&&n.position.offset+n.length==o.position.offset,s="attribute"==n.type&&"attribute"==o.type&&n.position.parent==o.position.parent&&n.range.isFlat&&o.range.isFlat&&n.position.offset+n.length==o.position.offset&&n.attributeKey==o.attributeKey&&n.attributeOldValue==o.attributeOldValue&&n.attributeNewValue==o.attributeNewValue;(i||r||s)&&(e[t-1].length++,s&&(e[t-1].range.end=e[t-1].range.end.getShiftedBy(1)),e.splice(t,1),t--)}for(const t of e)delete t.changeCount,"attribute"==t.type&&(delete t.position,delete t.length);return this._changeCount=0,this._cachedChangesWithGraveyard=e.slice(),this._cachedChanges=e.slice().filter(Tu),t.includeChangesInGraveyard?this._cachedChangesWithGraveyard:this._cachedChanges}reset(){this._changesInElement.clear(),this._elementSnapshots.clear(),this._changedMarkers.clear(),this._cachedChanges=null}_markInsert(t,e,n){const o={type:"insert",offset:e,howMany:n,count:this._changeCount++};this._markChange(t,o)}_markRemove(t,e,n){const o={type:"remove",offset:e,howMany:n,count:this._changeCount++};this._markChange(t,o),this._removeAllNestedChanges(t,e,n)}_markAttribute(t){const e={type:"attribute",offset:t.startOffset,howMany:t.offsetSize,count:this._changeCount++};this._markChange(t.parent,e)}_markChange(t,e){this._makeSnapshot(t);const n=this._getChangesForElement(t);this._handleChange(e,n),n.push(e);for(let t=0;t<n.length;t++)n[t].howMany<1&&(n.splice(t,1),t--)}_getChangesForElement(t){let e;return this._changesInElement.has(t)?e=this._changesInElement.get(t):(e=[],this._changesInElement.set(t,e)),e}_makeSnapshot(t){this._elementSnapshots.has(t)||this._elementSnapshots.set(t,Au(t.getChildren()))}_handleChange(t,e){t.nodesToHandle=t.howMany;for(const n of e){const o=t.offset+t.howMany,i=n.offset+n.howMany;if("insert"==t.type&&("insert"==n.type&&(t.offset<=n.offset?n.offset+=t.howMany:t.offset<i&&(n.howMany+=t.nodesToHandle,t.nodesToHandle=0)),"remove"==n.type&&t.offset<n.offset&&(n.offset+=t.howMany),"attribute"==n.type))if(t.offset<=n.offset)n.offset+=t.howMany;else if(t.offset<i){const i=n.howMany;n.howMany=t.offset-n.offset,e.unshift({type:"attribute",offset:o,howMany:i-n.howMany,count:this._changeCount++})}if("remove"==t.type){if("insert"==n.type)if(o<=n.offset)n.offset-=t.howMany;else if(o<=i)if(t.offset<n.offset){const e=o-n.offset;n.offset=t.offset,n.howMany-=e,t.nodesToHandle-=e}else n.howMany-=t.nodesToHandle,t.nodesToHandle=0;else if(t.offset<=n.offset)t.nodesToHandle-=n.howMany,n.howMany=0;else if(t.offset<i){const e=i-t.offset;n.howMany-=e,t.nodesToHandle-=e}if("remove"==n.type&&(o<=n.offset?n.offset-=t.howMany:t.offset<n.offset&&(t.nodesToHandle+=n.howMany,n.howMany=0)),"attribute"==n.type)if(o<=n.offset)n.offset-=t.howMany;else if(t.offset<n.offset){const e=o-n.offset;n.offset=t.offset,n.howMany-=e}else if(t.offset<i)if(o<=i){const o=n.howMany;n.howMany=t.offset-n.offset;const i=o-n.howMany-t.nodesToHandle;e.unshift({type:"attribute",offset:t.offset,howMany:i,count:this._changeCount++})}else n.howMany-=i-t.offset}if("attribute"==t.type){if("insert"==n.type)if(t.offset<n.offset&&o>n.offset){if(o>i){const t={type:"attribute",offset:i,howMany:o-i,count:this._changeCount++};this._handleChange(t,e),e.push(t)}t.nodesToHandle=n.offset-t.offset,t.howMany=t.nodesToHandle}else t.offset>=n.offset&&t.offset<i&&(o>i?(t.nodesToHandle=o-i,t.offset=i):t.nodesToHandle=0);"attribute"==n.type&&(t.offset>=n.offset&&o<=i?(t.nodesToHandle=0,t.howMany=0,t.offset=0):t.offset<=n.offset&&o>=i&&(n.howMany=0))}}t.howMany=t.nodesToHandle,delete t.nodesToHandle}_getInsertDiff(t,e,n){return{type:"insert",position:vs.createFromParentAndOffset(t,e),name:n,length:1,changeCount:this._changeCount++}}_getRemoveDiff(t,e,n){return{type:"remove",position:vs.createFromParentAndOffset(t,e),name:n,length:1,changeCount:this._changeCount++}}_getAttributesDiff(t,e,n){const o=[];n=new Map(n);for(const[i,r]of e){const e=n.has(i)?n.get(i):null;e!==r&&o.push({type:"attribute",position:t.start,range:_s.createFromRange(t),length:1,attributeKey:i,attributeOldValue:r,attributeNewValue:e,changeCount:this._changeCount++}),n.delete(i)}for(const[e,i]of n)o.push({type:"attribute",position:t.start,range:_s.createFromRange(t),length:1,attributeKey:e,attributeOldValue:null,attributeNewValue:i,changeCount:this._changeCount++});return o}_isInInsertedElement(t){const e=t.parent;if(!e)return!1;const n=this._changesInElement.get(e),o=t.startOffset;if(n)for(const t of n)if("insert"==t.type&&o>=t.offset&&o<t.offset+t.howMany)return!0;return this._isInInsertedElement(e)}_removeAllNestedChanges(t,e,n){const o=_s.createFromParentsAndOffsets(t,e,t,e+n);for(const t of o.getItems({shallow:!0}))t.is("element")&&(this._elementSnapshots.delete(t),this._changesInElement.delete(t),this._removeAllNestedChanges(t,0,t.maxOffset))}}function Au(t){const e=[];for(const n of t)if(n.is("text"))for(let t=0;t<n.data.length;t++)e.push({name:"$text",attributes:new Map(n.getAttributes())});else e.push({name:n.name,attributes:new Map(n.getAttributes())});return e}function Cu(t,e){const n=[];let o=0,i=0;for(const t of e)t.offset>o&&(n.push(..."e".repeat(t.offset-o).split("")),i+=t.offset-o),"insert"==t.type?(n.push(..."i".repeat(t.howMany).split("")),o=t.offset+t.howMany):"remove"==t.type?(n.push(..."r".repeat(t.howMany).split("")),o=t.offset,i+=t.howMany):(n.push(..."a".repeat(t.howMany).split("")),o=t.offset+t.howMany,i+=t.howMany);return i<t&&n.push(..."e".repeat(t-i).split("")),n}function Tu(t){const e=t.position&&"$graveyard"==t.position.root.rootName,n=t.range&&"$graveyard"==t.range.root.rootName;return!e&&!n}class Su{constructor(){this._deltas=[],this._historyPoints=new Map,this._undoPairs=new Map,this._undoneDeltas=new Set}addDelta(t){if(t.operations.length>0&&!this._historyPoints.has(t.baseVersion)){const e=this._deltas.length;this._deltas[e]=t,this._historyPoints.set(t.baseVersion,e)}}*getDeltas(t=0,e=Number.POSITIVE_INFINITY){if(0===this._deltas.length)return;let n=this._getIndex(t);if(-1!=n)for(;n<this._deltas.length;){const t=this._deltas[n++];if(t.baseVersion>=e)break;yield t}}getDelta(t){const e=this._historyPoints.get(t);return void 0===e?null:this._deltas[e]}setDeltaAsUndone(t,e){this._undoPairs.set(e,t),this._undoneDeltas.add(t)}isUndoingDelta(t){return this._undoPairs.has(t)}isUndoneDelta(t){return this._undoneDeltas.has(t)}getUndoneDelta(t){return this._undoPairs.get(t)}_getIndex(t){const e=this._historyPoints.get(t);if(void 0===e){const e=this._deltas[this._deltas.length-1],n=e.baseVersion+e.operations.length;if(t<0||t>=n)return-1;throw new m.b("model-history-wrong-version: Given base version points to the middle of a delta.")}return e}}function Eu(t,e){return function(t){return!!t&&1==t.length&&/[\ud800-\udbff]/.test(t)}(t.charAt(e-1))&&function(t){return!!t&&1==t.length&&/[\udc00-\udfff]/.test(t)}(t.charAt(e))}function Pu(t,e){return function(t){return!!t&&1==t.length&&/[\u0300-\u036f\u1ab0-\u1aff\u1dc0-\u1dff\u20d0-\u20ff\ufe20-\ufe2f]/.test(t)}(t.charAt(e))}const Ou="$graveyard";class Ru{constructor(t){this.model=t,this.version=0,this.history=new Su(this),this.selection=new Rs(this),this.roots=new jo({idProperty:"rootName"}),this.differ=new xu(t.markers),this._postFixers=new Set,this.createRoot("$root",Ou),this.listenTo(t,"applyOperation",(t,e)=>{const n=e[0];if(n.isDocumentOperation&&n.baseVersion!==this.version)throw new m.b("model-document-applyOperation-wrong-version: Only operations with matching versions can be applied.",{operation:n})},{priority:"highest"}),this.listenTo(t,"applyOperation",(t,e)=>{const n=e[0];n.isDocumentOperation&&this.differ.bufferOperation(n)},{priority:"high"}),this.listenTo(t,"applyOperation",(t,e)=>{const n=e[0];n.isDocumentOperation&&(this.version++,this.history.addDelta(n.delta))},{priority:"low"});let e=!1;this.listenTo(this.selection,"change",()=>{e=!0}),this.listenTo(t,"_change",(t,n)=>{this.differ.isEmpty&&!e||(this._callPostFixers(n),this.differ.hasDataChanges()?this.fire("change:data",n.batch):this.fire("change",n.batch),this.differ.reset(),e=!1)}),this.listenTo(t.markers,"update",(t,e,n,o)=>{this.differ.bufferMarkerChange(e.name,n,o,e.affectsData),null===n&&e.on("change",(t,n)=>{this.differ.bufferMarkerChange(e.name,n,e.getRange(),e.affectsData)})})}get graveyard(){return this.getRoot(Ou)}createRoot(t="$root",e="main"){if(this.roots.get(e))throw new m.b("model-document-createRoot-name-exists: Root with specified name already exists.",{name:e});const n=new gu(this,t,e);return this.roots.add(n),n}destroy(){this.selection.destroy(),this.stopListening()}getRoot(t="main"){return this.roots.get(t)}getRootNames(){return Array.from(this.roots,t=>t.rootName).filter(t=>t!=Ou)}registerPostFixer(t){this._postFixers.add(t)}toJSON(){const t=Sn(this);return t.selection="[engine.model.DocumentSelection]",t.model="[engine.model.Model]",t}_getDefaultRoot(){for(const t of this.roots)if(t!==this.graveyard)return t;return this.graveyard}_getDefaultRange(){const t=this._getDefaultRoot(),e=this.model.schema,n=new vs(t,[0]);return e.getNearestSelectionRange(n)||new _s(n)}_validateSelectionRange(t){return Iu(t.start)&&Iu(t.end)}_callPostFixers(t){let e=!1;do{for(const n of this._postFixers)if(e=n(t))break}while(e)}}function Iu(t){const e=t.textNode;if(e){const n=e.data,o=t.offset-e.startOffset;return!Eu(n,o)&&!Pu(n,o)}return!0}P(Ru,y);class Mu{constructor(){this._markers=new Map}[Symbol.iterator](){return this._markers.values()}has(t){return this._markers.has(t)}get(t){return this._markers.get(t)||null}_set(t,e,n=!1,o=!1){const i=t instanceof Fu?t.name:t,r=this._markers.get(i);if(r){const t=r.getRange();let s=!1;return t.isEqual(e)||(r._attachLiveRange(Ps.createFromRange(e)),s=!0),n!=r.managedUsingOperations&&(r._managedUsingOperations=n,s=!0),"boolean"==typeof o&&o!=r.affectsData&&(r._affectsData=o,s=!0),s&&this.fire("update:"+i,r,t,e),r}const s=Ps.createFromRange(e),a=new Fu(i,s,n,o);return this._markers.set(i,a),this.fire("update:"+i,a,null,e),a}_remove(t){const e=t instanceof Fu?t.name:t,n=this._markers.get(e);return!!n&&(this._markers.delete(e),this.fire("update:"+e,n,n.getRange(),null),this._destroyMarker(n),!0)}*getMarkersAtPosition(t){for(const e of this)e.getRange().containsPosition(t)&&(yield e)}*getMarkersIntersectingRange(t){for(const e of this)null!==e.getRange().getIntersection(t)&&(yield e)}destroy(){for(const t of this._markers.values())this._destroyMarker(t);this._markers=null,this.stopListening()}*getMarkersGroup(t){for(const e of this._markers.values())e.name.startsWith(t+":")&&(yield e)}_destroyMarker(t){t.stopListening(),t._detachLiveRange()}}P(Mu,y);class Fu{constructor(t,e,n,o){this.name=t,this._liveRange=this._attachLiveRange(e),this._managedUsingOperations=n,this._affectsData=o}get managedUsingOperations(){if(!this._liveRange)throw new m.b("marker-destroyed: Cannot use a destroyed marker instance.");return this._managedUsingOperations}get affectsData(){if(!this._liveRange)throw new m.b("marker-destroyed: Cannot use a destroyed marker instance.");return this._affectsData}getStart(){if(!this._liveRange)throw new m.b("marker-destroyed: Cannot use a destroyed marker instance.");return vs.createFromPosition(this._liveRange.start)}getEnd(){if(!this._liveRange)throw new m.b("marker-destroyed: Cannot use a destroyed marker instance.");return vs.createFromPosition(this._liveRange.end)}getRange(){if(!this._liveRange)throw new m.b("marker-destroyed: Cannot use a destroyed marker instance.");return _s.createFromRange(this._liveRange)}_attachLiveRange(t){return this._liveRange&&this._detachLiveRange(),t.delegate("change:range").to(this),t.delegate("change:content").to(this),this._liveRange=t,t}_detachLiveRange(){this._liveRange.stopDelegating("change:range",this),this._liveRange.stopDelegating("change:content",this),this._liveRange.detach(),this._liveRange=null}}P(Fu,y);class Vu extends vs{constructor(t,e,n){if(super(t,e),!this.root.is("rootElement"))throw new m.b("model-liveposition-root-not-rootelement: LivePosition's root has to be an instance of RootElement.");this.stickiness=n||"sticksToNext",function(){const t=new Set(["insert","move","remove","reinsert"]);this.listenTo(this.root.document.model,"applyOperation",(e,n)=>{const o=n[0];o.isDocumentOperation&&t.has(o.type)&&function(t){let e,n;"insert"==t.type?e=_s.createFromPositionAndShift(t.position,t.nodes.maxOffset):(e=_s.createFromPositionAndShift(t.getMovedRangeStart(),t.howMany),n=t.sourcePosition);const o=e.end.offset-e.start.offset;let i;switch(t.type){case"insert":const r="sticksToNext"==this.stickiness;i=this._getTransformedByInsertion(e.start,o,r);break;case"move":case"remove":case"reinsert":const s=_s.createFromPositionAndShift(n,o),a=s.containsPosition(this)||s.start.isEqual(this)&&"sticksToNext"==this.stickiness||s.end.isEqual(this)&&"sticksToPrevious"==this.stickiness;if(a)i=this._getCombined(n,e.start);else{const t="sticksToNext"==this.stickiness,r=e.start._getTransformedByInsertion(n,o);i=this._getTransformedByMove(n,r,o,t)}}if(!this.isEqual(i)){const t=vs.createFromPosition(this);this.path=i.path,this.root=i.root,this.fire("change",t)}}.call(this,o)},{priority:"low"})}.call(this)}detach(){this.stopListening()}}P(Vu,y);class Nu{constructor(t,e,n){this.model=t,this.writer=e,this.position=n,this.canMergeWith=new Set([this.position.parent]),this.schema=t.schema,this._filterAttributesOf=[]}handleNodes(t,e){t=Array.from(t);for(let n=0;n<t.length;n++){const o=t[n];this._handleNode(o,{isFirst:0===n&&e.isFirst,isLast:n===t.length-1&&e.isLast})}this.schema.removeDisallowedAttributes(this._filterAttributesOf,this.writer),this._filterAttributesOf=[]}getSelectionRange(){return this.nodeToSelect?_s.createOn(this.nodeToSelect):this.model.schema.getNearestSelectionRange(this.position)}_handleNode(t,e){if(this.schema.isObject(t))return void this._handleObject(t,e);this._checkAndSplitToAllowedPosition(t,e)?(this._insert(t),this._mergeSiblingsOf(t,e)):this._handleDisallowedNode(t,e)}_handleObject(t,e){this._checkAndSplitToAllowedPosition(t)?this._insert(t):this._tryAutoparagraphing(t,e)}_handleDisallowedNode(t,e){t.is("element")?this.handleNodes(t.getChildren(),e):this._tryAutoparagraphing(t,e)}_insert(t){if(!this.schema.checkChild(this.position,t))return void Ur.a.error("insertcontent-wrong-position: The node cannot be inserted on the given position.",{node:t,position:this.position});const e=Vu.createFromPosition(this.position);this.writer.insert(t,this.position),this.position=vs.createFromPosition(e),e.detach(),this.schema.isObject(t)&&!this.schema.checkChild(this.position,"$text")?this.nodeToSelect=t:this.nodeToSelect=null,this._filterAttributesOf.push(t)}_mergeSiblingsOf(t,e){if(!(t instanceof ms))return;const n=this._canMergeLeft(t,e),o=this._canMergeRight(t,e),i=Vu.createBefore(t),r=Vu.createAfter(t);if(n){const t=Vu.createFromPosition(this.position);this.writer.merge(i),this.position=vs.createFromPosition(t),t.detach()}if(o){this.position.isEqual(r)||Ur.a.error("insertcontent-wrong-position-on-merge: The insertion position should equal the merge position"),this.position=vs.createAt(r.nodeBefore,"end");const t=new Vu(this.position.root,this.position.path,"sticksToPrevious");this.writer.merge(r),this.position=vs.createFromPosition(t),t.detach()}(n||o)&&this._filterAttributesOf.push(this.position.parent),i.detach(),r.detach()}_canMergeLeft(t,e){const n=t.previousSibling;return e.isFirst&&n instanceof ms&&this.canMergeWith.has(n)&&this.model.schema.checkMerge(n,t)}_canMergeRight(t,e){const n=t.nextSibling;return e.isLast&&n instanceof ms&&this.canMergeWith.has(n)&&this.model.schema.checkMerge(t,n)}_tryAutoparagraphing(t,e){const n=this.writer.createElement("paragraph");this._getAllowedIn(n,this.position.parent)&&this.schema.checkChild(n,t)&&(n._appendChild(t),this._handleNode(n,e))}_checkAndSplitToAllowedPosition(t){const e=this._getAllowedIn(t,this.position.parent);if(!e)return!1;for(;e!=this.position.parent;){if(this.schema.isLimit(this.position.parent))return!1;if(this.position.isAtStart){const t=this.position.parent;this.position=vs.createBefore(t),t.isEmpty&&this.writer.remove(t)}else if(this.position.isAtEnd)this.position=vs.createAfter(this.position.parent);else{const t=vs.createAfter(this.position.parent);this.writer.split(this.position),this.position=t,this.canMergeWith.add(this.position.nodeAfter)}}return!0}_getAllowedIn(t,e){return this.schema.checkChild(e,t)?e:e.parent?this._getAllowedIn(t,e.parent):null}}function Du(t,e,n={}){if(e.isCollapsed)return;const o=t.schema;t.change(t=>{if(!n.doNotResetEntireContent&&function(t,e){const n=t.getLimitElement(e);if(!e.containsEntireContent(n))return!1;const o=e.getFirstRange();if(o.start.parent==o.end.parent)return!1;return t.checkChild(n,"paragraph")}(o,e))return void function(t,e){const n=t.model.schema.getLimitElement(e);t.remove(_s.createIn(n)),Bu(t,vs.createAt(n),e)}(t,e);const i=e.getFirstRange(),r=i.start,s=Vu.createFromPosition(i.end);i.start.isTouching(i.end)||t.remove(i),n.leaveUnmerged||(!function t(e,n,o){const i=n.parent;const r=o.parent;if(i==r)return;if(!i.parent||!r.parent)return;if(!function(t,e,n){const o=new _s(t,e);for(const t of o.getWalker())if(n.isLimit(t.item))return!1;return!0}(n,o,e.model.schema))return;n=vs.createAfter(i);o=vs.createBefore(r);o.isEqual(n)||e.insert(r,n);e.merge(n);for(;o.parent.isEmpty;){const t=o.parent;o=vs.createBefore(t),e.remove(t)}t(e,n,o)}(t,r,s),o.removeDisallowedAttributes(r.parent.getChildren(),t)),e instanceof Rs?t.setSelection(r):e.setTo(r),function(t,e){const n=t.checkChild(e,"$text"),o=t.checkChild(e,"paragraph");return!n&&o}(o,r)&&Bu(t,r,e),s.detach()})}function Bu(t,e,n){const o=t.createElement("paragraph");t.insert(o,e),n instanceof Rs?t.setSelection(o,0):n.setTo(o,0)}const Lu=' ,.?!:;"-()';function ju(t,e,n={}){const o=t.schema,i="backward"!=n.direction,r=n.unit?n.unit:"character",s=e.focus,a=new gs({boundaries:function(t,e){const n=t.root,o=vs.createAt(n,e?"end":0);return e?new _s(t,o):new _s(o,t)}(s,i),singleCharacters:!0,direction:i?"forward":"backward"}),c={walker:a,schema:o,isForward:i,unit:r};let l;for(;l=a.next();){if(l.done)return;const n=zu(c,l.value);if(n)return void(e instanceof Rs?t.change(t=>{t.setSelectionFocus(n)}):e.setFocus(n))}}function zu(t,e){if("text"==e.type)return"word"===t.unit?function(t,e){let n=t.position.textNode;if(n){let o=t.position.offset-n.startOffset;for(;!qu(n.data,o,e)&&!Uu(n,o,e);){t.next();const i=e?t.position.nodeAfter:t.position.nodeBefore;if(i&&i.is("text")){const o=i.data.charAt(e?0:i.data.length-1);Lu.includes(o)||(t.next(),n=t.position.textNode)}o=t.position.offset-n.startOffset}}return t.position}(t.walker,t.isForward):function(t,e){const n=t.position.textNode;if(n){const o=n.data;let i=t.position.offset-n.startOffset;for(;Eu(o,i)||"character"==e&&Pu(o,i);)t.next(),i=t.position.offset-n.startOffset}return t.position}(t.walker,t.unit,t.isForward);if(e.type==(t.isForward?"elementStart":"elementEnd")){if(t.schema.isObject(e.item))return vs.createAt(e.item,t.isForward?"after":"before");if(t.schema.checkChild(e.nextPosition,"$text"))return e.nextPosition}else{if(t.schema.isLimit(e.item))return void t.walker.skip(()=>!0);if(t.schema.checkChild(e.nextPosition,"$text"))return e.nextPosition}}function qu(t,e,n){const o=e+(n?0:-1);return Lu.includes(t.charAt(o))}function Uu(t,e,n){return e===(n?t.endOffset:0)}function Wu(t,e){const n=[];Array.from(t.getItems({direction:"backward"})).map(t=>_s.createOn(t)).filter(e=>{return(e.start.isAfter(t.start)||e.start.isEqual(t.start))&&(e.end.isBefore(t.end)||e.end.isEqual(t.end))}).forEach(t=>{n.push(t.start.parent),e.remove(t)}),n.forEach(t=>{let n=t;for(;n.parent&&n.isEmpty;){const t=_s.createOn(n);n=n.parent,e.remove(t)}})}function Hu(t){t.document.registerPostFixer(e=>(function(t,e){const n=e.document.selection,o=e.schema,i=[];let r=!1;for(const t of n.getRanges()){const e=$u(t,o);e?(i.push(e),r=!0):i.push(t)}if(r){let e=i;if(i.length>1){const t=i[0].start,n=i[i.length-1].end;e=[new _s(t,n)]}t.setSelection(e,{backward:n.isBackward})}})(e,t))}function $u(t,e){return t.isCollapsed?function(t,e){const n=t.start,o=e.getNearestSelectionRange(n);if(!o)return null;const i=o.start;if(n.isEqual(i))return null;if(i.nodeAfter&&e.isLimit(i.nodeAfter))return new _s(i,vs.createAfter(i.nodeAfter));return new _s(i)}(t,e):function(t,e){const n=t.start,o=t.end,i=e.checkChild(n,"$text"),r=e.checkChild(o,"$text"),s=e.getLimitElement(n),a=e.getLimitElement(o);if(s===a){if(i&&r)return null;if(function(t,e,n){const o=t.nodeAfter&&!n.isLimit(t.nodeAfter)||n.checkChild(t,"$text"),i=e.nodeBefore&&!n.isLimit(e.nodeBefore)||n.checkChild(e,"$text");return o&&i}(n,o,e)){const t=e.getNearestSelectionRange(n,"forward"),i=e.getNearestSelectionRange(o,"backward");return new _s(t?t.start:n,i?i.start:o)}}const c=s&&!s.is("rootElement"),l=a&&!a.is("rootElement");if(c||l){const t=c?Ku(vs.createAt(s),e,"start"):n,i=l?Ku(vs.createAt(a),e,"end"):o;return new _s(t,i)}return null}(t,e)}function Ku(t,e,n){let o=t.parent,i=o;for(;e.isLimit(i)&&i.parent;)o=i,i=i.parent;return"start"===n?vs.createBefore(o):vs.createAfter(o)}class Gu{constructor(){this.markers=new Mu,this.document=new Ru(this),this.schema=new Gs,this._pendingChanges=[],this._currentWriter=null,["insertContent","deleteContent","modifySelection","getSelectedContent","applyOperation"].forEach(t=>this.decorate(t)),this.on("applyOperation",(t,e)=>{e[0]._validate()},{priority:"highest"}),this.schema.register("$root",{isLimit:!0}),this.schema.register("$block",{allowIn:"$root",isBlock:!0}),this.schema.register("$text",{allowIn:"$block"}),this.schema.register("$clipboardHolder",{allowContentOf:"$root",isLimit:!0}),this.schema.extend("$text",{allowIn:"$clipboardHolder"}),this.schema.register("$marker",{allowIn:["$root","$block"]}),Hu(this)}change(t){return 0===this._pendingChanges.length?(this._pendingChanges.push({batch:new fu,callback:t}),this._runPendingChanges()[0]):t(this._currentWriter)}enqueueChange(t,e){"string"==typeof t?t=new fu(t):"function"==typeof t&&(e=t,t=new fu),this._pendingChanges.push({batch:t,callback:e}),1==this._pendingChanges.length&&this._runPendingChanges()}applyOperation(t){t._execute()}transformDeltas(t,e,n=!1){return eu.transformDeltaSets(t,e,n?this.document:null)}insertContent(t,e){!function(t,e,n){t.change(o=>{n.isCollapsed||t.deleteContent(n);const i=new Nu(t,o,n.anchor);let r;r=e.is("documentFragment")?e.getChildren():[e],i.handleNodes(r,{isFirst:!0,isLast:!0});const s=i.getSelectionRange();s?n instanceof Rs?o.setSelection(s):n.setTo(s):Ur.a.warn("insertcontent-no-range: Cannot determine a proper selection range after insertion.")})}(this,t,e)}deleteContent(t,e){Du(this,t,e)}modifySelection(t,e){ju(this,t,e)}getSelectedContent(t){return function(t,e){return t.change(t=>{const n=t.createDocumentFragment(),o=e.getFirstRange();if(!o||o.isCollapsed)return n;const i=o.start.root,r=o.start.getCommonPath(o.end),s=i.getNodeByPath(r);let a;const c=(a=o.start.parent==o.end.parent?o:_s.createFromParentsAndOffsets(s,o.start.path[r.length],s,o.end.path[r.length]+1)).end.offset-a.start.offset;for(const e of a.getItems({shallow:!0}))e.is("textProxy")?t.appendText(e.data,e.getAttributes(),n):t.append(e._clone(!0),n);if(a!=o){const e=o._getTransformedByMove(a.start,vs.createAt(n,0),c)[0],i=new _s(vs.createAt(n),e.start);Wu(new _s(e.end,vs.createAt(n,"end")),t),Wu(i,t)}return n})}(this,t)}hasContent(t){if(t instanceof ms&&(t=_s.createIn(t)),t.isCollapsed)return!1;for(const e of t.getItems())if(e.is("textProxy")||this.schema.isObject(e))return!0;return!1}destroy(){this.document.destroy(),this.stopListening()}_runPendingChanges(){const t=[];for(;this._pendingChanges.length;){const e=this._pendingChanges[0].batch;this._currentWriter=new bu(this,e);const n=this._pendingChanges[0].callback(this._currentWriter);t.push(n),this.fire("_change",this._currentWriter),this._pendingChanges.shift(),this._currentWriter=null}return t}}P(Gu,xo);class Ju{constructor(){this._listener=Object.create(Hi)}listenTo(t){this._listener.listenTo(t,"keydown",(t,e)=>{this._listener.fire("_keydown:"+Zo(e),e)})}set(t,e,n={}){const o=ti(t),i=n.priority;this._listener.listenTo(this._listener,"_keydown:"+o,(t,n)=>{e(n,()=>{n.preventDefault(),n.stopPropagation(),t.stop()}),t.return=!0},{priority:i})}press(t){return!!this._listener.fire("_keydown:"+Zo(t),t)}destroy(){this._listener.stopListening()}}class Qu extends Ju{constructor(t){super(),this.editor=t}set(t,e,n={}){if("string"==typeof e){const t=e;e=((e,n)=>{this.editor.execute(t),n()})}super.set(t,e,n)}}n(32);class Yu{constructor(t){const e=this.constructor.builtinPlugins;this.config=new p(t,this.constructor.defaultConfig),this.config.define("plugins",e),this.plugins=new qs(this,e),this.commands=new Us,this.locale=new Hs(this.config.get("language")),this.t=this.locale.t,this.set("state","initializing"),this.once("ready",()=>this.state="ready",{priority:"high"}),this.once("destroy",()=>this.state="destroyed",{priority:"high"}),this.set("isReadOnly",!1),this.model=new Gu,this.data=new fa(this.model),this.editing=new zs(this.model),this.editing.view.document.bind("isReadOnly").to(this),this.conversion=new pa,this.conversion.register("downcast",[this.editing.downcastDispatcher,this.data.downcastDispatcher]),this.conversion.register("editingDowncast",[this.editing.downcastDispatcher]),this.conversion.register("dataDowncast",[this.data.downcastDispatcher]),this.conversion.register("upcast",[this.data.upcastDispatcher]),this.keystrokes=new Qu(this),this.keystrokes.listenTo(this.editing.view.document)}initPlugins(){const t=this,e=this.config;return function(){const n=e.get("plugins")||[],o=e.get("removePlugins")||[];return t.plugins.load(n,o)}().then(t=>n(t,"init").then(()=>n(t,"afterInit"))).then(()=>this.fire("pluginsReady"));function n(t,e){return t.reduce((t,n)=>n[e]?t.then(n[e].bind(n)):t,Promise.resolve())}}destroy(){let t=Promise.resolve();return"initializing"==this.state&&(t=new Promise(t=>this.once("ready",t))),t.then(()=>{this.fire("destroy"),this.stopListening(),this.commands.destroy()}).then(()=>this.plugins.destroy()).then(()=>{this.model.destroy(),this.data.destroy(),this.editing.destroy(),this.keystrokes.destroy()})}execute(...t){this.commands.execute(...t)}static create(t){return new Promise(e=>{const n=new this(t);e(n.initPlugins().then(()=>{n.fire("dataReady"),n.fire("ready")}).then(()=>n))})}}P(Yu,xo);var Xu={setData(t){this.data.set(t)},getData(){return this.data.get()}};var Zu={updateSourceElement(){if(!this.sourceElement)throw new m.b("editor-missing-sourceelement: Cannot update the source element of a detached editor.");!function(t,e){t instanceof HTMLTextAreaElement&&(t.value=e),t.innerHTML=e}(this.sourceElement,this.data.get())}};class th{getHtml(t){const e=document.implementation.createHTMLDocument("").createElement("div");return e.appendChild(t),e.innerHTML}}class eh{constructor(){this._domParser=new DOMParser,this._domConverter=new zi({blockFiller:bi}),this._htmlWriter=new th}toData(t){const e=this._domConverter.viewToDom(t,document);return this._htmlWriter.getHtml(e)}toView(t){const e=this._toDom(t);return this._domConverter.domToView(e)}_toDom(t){const e=this._domParser.parseFromString(t,"text/html"),n=e.createDocumentFragment(),o=e.body.childNodes;for(;o.length>0;)n.appendChild(o[0]);return n}}class nh{constructor(t){this.editor=t,this._components=new Map}*names(){for(const t of this._components.values())yield t.originalName}add(t,e){if(this.has(t))throw new m.b("componentfactory-item-exists: The item already exists in the component factory.",{name:t});this._components.set(oh(t),{callback:e,originalName:t})}create(t){if(!this.has(t))throw new m.b("componentfactory-item-missing: The required component is not registered in the factory.",{name:t});return this._components.get(oh(t)).callback(this.editor.locale)}has(t){return this._components.has(oh(t))}}function oh(t){return String(t).toLowerCase()}class ih{constructor(){this.set("isFocused",!1),this.focusedElement=null,this._elements=new Set,this._nextEventLoopTimeout=null}add(t){if(this._elements.has(t))throw new m.b("focusTracker-add-element-already-exist");this.listenTo(t,"focus",()=>this._focus(t),{useCapture:!0}),this.listenTo(t,"blur",()=>this._blur(),{useCapture:!0}),this._elements.add(t)}remove(t){t===this.focusedElement&&this._blur(t),this._elements.has(t)&&(this.stopListening(t),this._elements.delete(t))}_focus(t){clearTimeout(this._nextEventLoopTimeout),this.focusedElement=t,this.isFocused=!0}_blur(){clearTimeout(this._nextEventLoopTimeout),this._nextEventLoopTimeout=setTimeout(()=>{this.focusedElement=null,this.isFocused=!1},0)}}P(ih,Hi),P(ih,xo);class rh{constructor(t,e){this.editor=t,this.view=e,this.componentFactory=new nh(t),this.focusTracker=new ih,this.listenTo(t.editing.view.document,"layoutChanged",()=>this.update())}update(){this.fire("update")}destroy(){this.stopListening(),this.view.destroy()}}P(rh,y);class sh extends rh{constructor(t,e){super(t,e),this._toolbarConfig=function(t){return Array.isArray(t)?{items:t}:t?Object.assign({items:[]},t):{items:[]}}(t.config.get("toolbar"))}init(){const t=this.editor,e=this.view;e.render(),e.stickyPanel.bind("isActive").to(this.focusTracker,"isFocused"),e.stickyPanel.limiterElement=e.element,this._toolbarConfig.viewportTopOffset&&(e.stickyPanel.viewportTopOffset=this._toolbarConfig.viewportTopOffset);const n=t.editing.view.document.getRoot();e.editable.bind("isReadOnly").to(n),e.editable.bind("isFocused").to(t.editing.view.document),e.editable.name=n.rootName,this.focusTracker.add(this.view.editableElement),this.view.toolbar.fillFromConfig(this._toolbarConfig.items,this.componentFactory),function({origin:t,originKeystrokeHandler:e,originFocusTracker:n,toolbar:o,beforeFocus:i,afterBlur:r}){n.add(o.element),e.set("Alt+F10",(t,e)=>{n.isFocused&&!o.focusTracker.isFocused&&(i&&i(),o.focus(),e())}),o.keystrokes.set("Esc",(e,n)=>{o.focusTracker.isFocused&&(t.focus(),r&&r(),n())})}({origin:t.editing.view,originFocusTracker:this.focusTracker,originKeystrokeHandler:t.keystrokes,toolbar:this.view.toolbar})}}class ah extends jo{constructor(t){super({idProperty:"viewUid"}),this.on("add",(t,e,n)=>{e.isRendered||e.render(),e.element&&this._parentElement&&this._parentElement.insertBefore(e.element,this._parentElement.children[n])}),this.on("remove",(t,e)=>{e.element&&this._parentElement&&e.element.remove()}),this.locale=t,this._parentElement=null}destroy(){this.map(t=>t.destroy())}setParent(t){this._parentElement=t}delegate(...t){if(!t.length||!function(t){return t.every(t=>"string"==typeof t)}(t))throw new m.b("ui-viewcollection-delegate-wrong-events: All event names must be strings.");return{to:e=>{for(const n of this)for(const o of t)n.delegate(o).to(e);this.on("add",(n,o)=>{for(const n of t)o.delegate(n).to(e)}),this.on("remove",(n,o)=>{for(const n of t)o.stopDelegating(n,e)})}}}}P(jo,xo);var ch=function(t,e){return Tn(t,!0,!0,e)};const lh="http://www.w3.org/1999/xhtml";class dh{constructor(t){Object.assign(this,vh(wh(t))),this._isRendered=!1,this._revertData=null}render(){const t=this._renderNode({intoFragment:!0});return this._isRendered=!0,t}apply(t){return this._revertData={children:[],bindings:[],attributes:{}},this._renderNode({node:t,isApplying:!0,revertData:this._revertData}),t}revert(t){if(!this._revertData)throw new m.b("ui-template-revert-not-applied: Attempting to revert a template which has not been applied yet.");this._revertTemplateFromNode(t,this._revertData)}*getViews(){yield*function*t(e){if(e.children)for(const n of e.children)Ah(n)?yield n:Ch(n)&&(yield*t(n))}(this)}static bind(t,e){return{to:(n,o)=>new hh({eventNameOrFunction:n,attribute:n,observable:t,emitter:e,callback:o}),if:(n,o,i)=>new fh({observable:t,emitter:e,attribute:n,valueIfTrue:o,callback:i})}}static extend(t,e){t._isRendered&&Ur.a.warn("template-extend-render: Attempting to extend a template which has already been rendered."),function t(e,n){n.attributes&&(e.attributes||(e.attributes={}),yh(e.attributes,n.attributes));n.eventListeners&&(e.eventListeners||(e.eventListeners={}),yh(e.eventListeners,n.eventListeners));n.text&&e.text.push(...n.text);if(n.children&&n.children.length){if(e.children.length!=n.children.length)throw new m.b("ui-template-extend-children-mismatch: The number of children in extended definition does not match.");let o=0;for(const i of n.children)t(e.children[o++],i)}}(t,vh(wh(e)))}_renderNode(t){let e;if(e=t.node?this.tag&&this.text:this.tag?this.text:!this.text)throw new m.b('ui-template-wrong-syntax: Node definition must have either "tag" or "text" when rendering a new Node.');return this.text?this._renderText(t):this._renderElement(t)}_renderElement(t){let e=t.node;return e||(e=t.node=document.createElementNS(this.ns||lh,this.tag)),this._renderAttributes(t),this._renderElementChildren(t),this._setUpListeners(t),e}_renderText(t){let e=t.node;return e?t.revertData.text=e.textContent:e=t.node=document.createTextNode(""),ph(this.text)?this._bindToObservable({schema:this.text,updater:function(t){return{set(e){t.textContent=e},remove(){t.textContent=""}}}(e),data:t}):e.textContent=this.text.join(""),e}_renderAttributes(t){let e,n,o,i;if(!this.attributes)return;const r=t.node,s=t.revertData;for(e in this.attributes)if(o=r.getAttribute(e),n=this.attributes[e],s&&(s.attributes[e]=o),i=W(n[0])&&n[0].ns?n[0].ns:null,ph(n)){const a=i?n[0].value:n;s&&Sh(e)&&a.unshift(o),this._bindToObservable({schema:a,updater:gh(r,e,i),data:t})}else"style"==e&&"string"!=typeof n[0]?this._renderStyleAttribute(n[0],t):(s&&o&&Sh(e)&&n.unshift(o),xh(n=n.map(t=>t&&t.value||t).reduce((t,e)=>t.concat(e),[]).reduce(kh,""))||r.setAttributeNS(i,e,n))}_renderStyleAttribute(t,e){const n=e.node;for(const o in t){const i=t[o];ph(i)?this._bindToObservable({schema:[i],updater:bh(n,o),data:e}):n.style[o]=i}}_renderElementChildren(t){const e=t.node,n=t.intoFragment?document.createDocumentFragment():e,o=t.isApplying;let i=0;for(const r of this.children)if(Th(r)){if(!o){r.setParent(e);for(const t of r)n.appendChild(t.element)}}else if(Ah(r))o||(r.isRendered||r.render(),n.appendChild(r.element));else if(Oi(r))n.appendChild(r);else if(o){const e={children:[],bindings:[],attributes:{}};t.revertData.children.push(e),r._renderNode({node:n.childNodes[i++],isApplying:!0,revertData:e})}else n.appendChild(r.render());t.intoFragment&&e.appendChild(n)}_setUpListeners(t){if(this.eventListeners)for(const e in this.eventListeners){const n=this.eventListeners[e].map(n=>{const[o,i]=e.split("@");return n.activateDomEventListener(o,i,t)});t.revertData&&t.revertData.bindings.push(n)}}_bindToObservable({schema:t,updater:e,data:n}){const o=n.revertData;mh(t,e,n);const i=t.filter(t=>!xh(t)).filter(t=>t.observable).map(o=>o.activateAttributeListener(t,e,n));o&&o.bindings.push(i)}_revertTemplateFromNode(t,e){for(const t of e.bindings)for(const e of t)e();if(e.text)t.textContent=e.text;else{for(const n in e.attributes){const o=e.attributes[n];null===o?t.removeAttribute(n):t.setAttribute(n,o)}for(let n=0;n<e.children.length;++n)this._revertTemplateFromNode(t.childNodes[n],e.children[n])}}}P(dh,y);class uh{constructor(t){Object.assign(this,t)}getValue(t){const e=this.observable[this.attribute];return this.callback?this.callback(e,t):e}activateAttributeListener(t,e,n){const o=()=>mh(t,e,n);return this.emitter.listenTo(this.observable,"change:"+this.attribute,o),()=>{this.emitter.stopListening(this.observable,"change:"+this.attribute,o)}}}class hh extends uh{activateDomEventListener(t,e,n){const o=(t,n)=>{e&&!n.target.matches(e)||("function"==typeof this.eventNameOrFunction?this.eventNameOrFunction(n):this.observable.fire(this.eventNameOrFunction,n))};return this.emitter.listenTo(n.node,t,o),()=>{this.emitter.stopListening(n.node,t,o)}}}class fh extends uh{getValue(t){return!xh(super.getValue(t))&&(this.valueIfTrue||!0)}}function ph(t){return!!t&&(t.value&&(t=t.value),Array.isArray(t)?t.some(ph):t instanceof uh)}function mh(t,e,{node:n}){let o=function(t,e){return t.map(t=>t instanceof uh?t.getValue(e):t)}(t,n);xh(o=1==t.length&&t[0]instanceof fh?o[0]:o.reduce(kh,""))?e.remove():e.set(o)}function gh(t,e,n){return{set(o){t.setAttributeNS(n,e,o)},remove(){t.removeAttributeNS(n,e)}}}function bh(t,e){return{set(n){t.style[e]=n},remove(){t.style[e]=null}}}function wh(t){return ch(t,t=>{if(t&&(t instanceof uh||Ch(t)||Ah(t)||Th(t)))return t})}function vh(t){if("string"==typeof t?t=function(t){return{text:[t]}}(t):t.text&&function(t){Array.isArray(t.text)||(t.text=[t.text])}(t),t.on&&(t.eventListeners=function(t){for(const e in t)_h(t,e);return t}(t.on),delete t.on),!t.text){t.attributes&&function(t){for(const e in t)t[e].value&&(t[e].value=[].concat(t[e].value)),_h(t,e)}(t.attributes);const e=[];if(t.children)if(Th(t.children))e.push(t.children);else for(const n of t.children)Ch(n)||Ah(n)||Oi(n)?e.push(n):e.push(new dh(n));t.children=e}return t}function _h(t,e){Array.isArray(t[e])||(t[e]=[t[e]])}function kh(t,e){return xh(e)?t:xh(t)?e:`${t} ${e}`}function yh(t,e){for(const n in e)t[n]?t[n].push(...e[n]):t[n]=e[n]}function xh(t){return!t&&0!==t}function Ah(t){return t instanceof Eh}function Ch(t){return t instanceof dh}function Th(t){return t instanceof ah}function Sh(t){return"class"==t||"style"==t}n(33);class Eh{constructor(t){this.element=null,this.isRendered=!1,this.locale=t,this.t=t&&t.t,this._viewCollections=new jo,this._unboundChildren=this.createCollection(),this._viewCollections.on("add",(e,n)=>{n.locale=t}),this.decorate("render")}get bindTemplate(){return this._bindTemplate?this._bindTemplate:this._bindTemplate=dh.bind(this,this)}createCollection(){const t=new ah;return this._viewCollections.add(t),t}registerChild(t){Mn(t)||(t=[t]);for(const e of t)this._unboundChildren.add(e)}deregisterChild(t){Mn(t)||(t=[t]);for(const e of t)this._unboundChildren.remove(e)}setTemplate(t){this.template=new dh(t)}extendTemplate(t){dh.extend(this.template,t)}render(){if(this.isRendered)throw new m.b("ui-view-render-already-rendered: This View has already been rendered.");this.template&&(this.element=this.template.render(),this.registerChild(this.template.getViews())),this.isRendered=!0}destroy(){this.stopListening(),this._viewCollections.map(t=>t.destroy())}}P(Eh,Hi),P(Eh,xo);n(36);class Ph extends Eh{constructor(t){super(t),this.body=this.createCollection()}render(){super.render(),this._renderBodyCollection()}destroy(){return this._bodyCollectionContainer.remove(),super.destroy()}_renderBodyCollection(){const t=this._bodyCollectionContainer=new dh({tag:"div",attributes:{class:["ck","ck-reset_all","ck-body","ck-rounded-corners"]},children:this.body}).render();document.body.appendChild(t)}}n(38);class Oh extends Eh{constructor(t){super(t),this.set("text"),this.set("for");const e=this.bindTemplate;this.setTemplate({tag:"label",attributes:{class:["ck","ck-label"],for:e.to("for")},children:[{text:e.to("text")}]})}}class Rh extends Ph{constructor(t){super(t);const e=w();this.top=this.createCollection(),this.main=this.createCollection(),this._voiceLabelView=this._createVoiceLabel(e),this.setTemplate({tag:"div",attributes:{class:["ck","ck-reset","ck-editor","ck-rounded-corners"],role:"application",dir:"ltr",lang:t.language,"aria-labelledby":`ck-editor__aria-label_${e}`},children:[this._voiceLabelView,{tag:"div",attributes:{class:["ck","ck-editor__top","ck-reset_all"],role:"presentation"},children:this.top},{tag:"div",attributes:{class:["ck","ck-editor__main"],role:"presentation"},children:this.main}]})}_createVoiceLabel(t){const e=this.t,n=new Oh;return n.text=e("ag"),n.extendTemplate({attributes:{id:`ck-editor__aria-label_${t}`,class:"ck-voice-label"}}),n}}class Ih extends Eh{constructor(t,e){super(t);const n=this.bindTemplate;e&&(this.element=this.editableElement=e),this.setTemplate({tag:"div",attributes:{class:["ck","ck-content","ck-editor__editable","ck-rounded-corners",n.to("isFocused",t=>t?"ck-focused":"ck-blurred")],contenteditable:n.to("isReadOnly",t=>!t)}}),this.set("isReadOnly",!1),this.set("isFocused",!1),this.externalElement=e}render(){super.render(),this.externalElement?this.template.apply(this.element=this.externalElement):this.editableElement=this.element}destroy(){this.externalElement&&this.template.revert(this.externalElement),super.destroy()}}class Mh extends Ih{constructor(t,e){super(t,e);const n=this.bindTemplate,o=this.t;this.set("name",null);this.extendTemplate({attributes:{role:"textbox","aria-label":n.to("name",t=>o("af",[t])),class:"ck-editor__editable_inline"}})}}function Fh(t){return e=>e+t}n(40);const Vh=Fh("px");class Nh extends Eh{constructor(t){super(t);const e=this.bindTemplate;this.set("isActive",!1),this.set("isSticky",!1),this.set("limiterElement",null),this.set("limiterBottomOffset",50),this.set("viewportTopOffset",0),this.set("_marginLeft",null),this.set("_isStickyToTheLimiter",!1),this.set("_hasViewportTopOffset",!1),this.content=this.createCollection(),this._contentPanelPlaceholder=new dh({tag:"div",attributes:{class:["ck","ck-sticky-panel__placeholder"],style:{display:e.to("isSticky",t=>t?"block":"none"),height:e.to("isSticky",t=>t?Vh(this._panelRect.height):null)}}}).render(),this._contentPanel=new dh({tag:"div",attributes:{class:["ck","ck-sticky-panel__content",e.if("isSticky","ck-sticky-panel__content_sticky"),e.if("_isStickyToTheLimiter","ck-sticky-panel__content_sticky_bottom-limit")],style:{width:e.to("isSticky",t=>t?Vh(this._contentPanelPlaceholder.getBoundingClientRect().width):null),top:e.to("_hasViewportTopOffset",t=>t?Vh(this.viewportTopOffset):null),bottom:e.to("_isStickyToTheLimiter",t=>t?Vh(this.limiterBottomOffset):null),marginLeft:e.to("_marginLeft")}},children:this.content}).render(),this.setTemplate({tag:"div",attributes:{class:["ck","ck-sticky-panel"]},children:[this._contentPanelPlaceholder,this._contentPanel]})}render(){super.render(),this._checkIfShouldBeSticky(),this.listenTo(Di.window,"scroll",()=>{this._checkIfShouldBeSticky()}),this.listenTo(this,"change:isActive",()=>{this._checkIfShouldBeSticky()})}_checkIfShouldBeSticky(){const t=this._panelRect=this._contentPanel.getBoundingClientRect();let e;this.limiterElement?(e=this._limiterRect=this.limiterElement.getBoundingClientRect(),this.isSticky=this.isActive&&e.top<this.viewportTopOffset&&this._panelRect.height+this.limiterBottomOffset<e.height):this.isSticky=!1,this.isSticky?(this._isStickyToTheLimiter=e.bottom<t.height+this.limiterBottomOffset+this.viewportTopOffset,this._hasViewportTopOffset=!this._isStickyToTheLimiter&&!!this.viewportTopOffset,this._marginLeft=this._isStickyToTheLimiter?null:Vh(-Di.window.scrollX)):(this._isStickyToTheLimiter=!1,this._hasViewportTopOffset=!1,this._marginLeft=null)}}class Dh{constructor(t){if(Object.assign(this,t),t.actions&&t.keystrokeHandler)for(const e in t.actions){let n=t.actions[e];"string"==typeof n&&(n=[n]);for(const o of n)t.keystrokeHandler.set(o,(t,n)=>{this[e](),n()})}}get first(){return this.focusables.find(Bh)||null}get last(){return this.focusables.filter(Bh).slice(-1)[0]||null}get next(){return this._getFocusableItem(1)}get previous(){return this._getFocusableItem(-1)}get current(){let t=null;return null===this.focusTracker.focusedElement?null:(this.focusables.find((e,n)=>{const o=e.element===this.focusTracker.focusedElement;return o&&(t=n),o}),t)}focusFirst(){this._focus(this.first)}focusLast(){this._focus(this.last)}focusNext(){this._focus(this.next)}focusPrevious(){this._focus(this.previous)}_focus(t){t&&t.focus()}_getFocusableItem(t){const e=this.current,n=this.focusables.length;if(!n)return null;if(null===e)return this[1===t?"first":"last"];let o=(e+n+t)%n;do{const e=this.focusables.get(o);if(Bh(e))return e;o=(o+n+t)%n}while(o!==e);return null}}function Bh(t){return!(!t.focus||"none"==Di.window.getComputedStyle(t.element).display)}class Lh extends Eh{constructor(t){super(t),this.setTemplate({tag:"span",attributes:{class:["ck","ck-toolbar__separator"]}})}}n(42);class jh extends Eh{constructor(t){super(t);const e=this.bindTemplate;this.items=this.createCollection(),this.focusTracker=new ih,this.keystrokes=new Ju,this.set("isVertical",!1),this.set("className"),this._focusCycler=new Dh({focusables:this.items,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:["arrowleft","arrowup"],focusNext:["arrowright","arrowdown"]}}),this.setTemplate({tag:"div",attributes:{class:["ck","ck-toolbar",e.if("isVertical","ck-toolbar_vertical"),e.to("className")]},children:this.items,on:{mousedown:function(t){return t.bindTemplate.to(e=>{e.target===t.element&&e.preventDefault()})}(this)}})}render(){super.render();for(const t of this.items)this.focusTracker.add(t.element);this.items.on("add",(t,e)=>{this.focusTracker.add(e.element)}),this.items.on("remove",(t,e)=>{this.focusTracker.remove(e.element)}),this.keystrokes.listenTo(this.element)}focus(){this._focusCycler.focusFirst()}focusLast(){this._focusCycler.focusLast()}fillFromConfig(t,e){t.map(t=>{"|"==t?this.items.add(new Lh):e.has(t)?this.items.add(e.create(t)):Ur.a.warn("toolbarview-item-unavailable: The requested toolbar item is unavailable.",{name:t})})}}n(44);class zh extends Rh{constructor(t){super(t),this.stickyPanel=new Nh(t),this.toolbar=new jh(t),this.editable=new Mh(t)}render(){super.render(),this.stickyPanel.content.add(this.toolbar),this.top.add(this.stickyPanel),this.main.add(this.editable)}get editableElement(){return this.editable.element}}class qh{constructor(){this._replacedElements=[]}replace(t,e){this._replacedElements.push({element:t,newElement:e}),t.style.display="none",e&&t.parentNode.insertBefore(e,t.nextSibling)}restore(){this._replacedElements.forEach(({element:t,newElement:e})=>{t.style.display="",e&&e.remove()}),this._replacedElements=[]}}class Uh extends Yu{constructor(t,e){super(e),ji(t)&&(this.sourceElement=t),this._elementReplacer=new qh,this.data.processor=new eh,this.model.document.createRoot(),this.ui=new sh(this,new zh(this.locale)),function(t){if(!G(t.updateSourceElement))throw new m.b("attachtoform-missing-elementapi-interface: Editor passed to attachToForm() must implement ElementApi.");const e=t.sourceElement;if(e&&"textarea"===e.tagName.toLowerCase()&&e.form){let n;const o=e.form,i=()=>t.updateSourceElement();G(o.submit)&&(n=o.submit,o.submit=(()=>{i(),n.apply(o)})),o.addEventListener("submit",i),t.on("destroy",()=>{o.removeEventListener("submit",i),n&&(o.submit=n)})}}(this)}get element(){return this.ui.view.element}destroy(){return this.sourceElement&&this.updateSourceElement(),this._elementReplacer.restore(),this.ui.destroy(),super.destroy()}static create(t,e){return new Promise(n=>{const o=new this(t,e);n(o.initPlugins().then(()=>o.ui.init()).then(()=>{ji(t)&&o._elementReplacer.replace(t,o.element),o.fire("uiReady")}).then(()=>o.editing.view.attachDomRoot(o.ui.view.editableElement)).then(()=>{const e=ji(t)?function(t){return t instanceof HTMLTextAreaElement?t.value:t.innerHTML}(t):t;return o.data.init(e)}).then(()=>{o.fire("dataReady"),o.fire("ready")}).then(()=>o))})}}P(Uh,Xu),P(Uh,Zu);class Wh{constructor(t){this.editor=t}destroy(){this.stopListening()}}P(Wh,xo);class Hh{constructor(t){this.files=function(t){const e=t.files?Array.from(t.files):[],n=t.items?Array.from(t.items):[];if(e.length)return e;return n.filter(t=>"file"===t.kind).map(t=>t.getAsFile())}(t),this._native=t}get types(){return this._native.types}getData(t){return this._native.getData(t)}setData(t,e){this._native.setData(t,e)}}class $h extends Vr{constructor(t){super(t);const e=this.document;function n(t,n){n.preventDefault();const o=n.dropRange?[n.dropRange]:Array.from(e.selection.getRanges());e.fire("clipboardInput",{dataTransfer:n.dataTransfer,targetRanges:o})}this.domEventType=["paste","copy","cut","drop","dragover"],this.listenTo(e,"paste",n,{priority:"low"}),this.listenTo(e,"drop",n,{priority:"low"})}onDomEvent(t){const e={dataTransfer:new Hh(t.clipboardData?t.clipboardData:t.dataTransfer)};"drop"==t.type&&(e.dropRange=function(t,e){const n=e.target.ownerDocument,o=e.clientX,i=e.clientY;let r;n.caretRangeFromPoint&&n.caretRangeFromPoint(o,i)?r=n.caretRangeFromPoint(o,i):e.rangeParent&&((r=n.createRange()).setStart(e.rangeParent,e.rangeOffset),r.collapse(!0));return r?t.domConverter.domRangeToView(r):t.document.selection.getFirstRange()}(this.view,t)),this.fire(t.type,t,e)}}const Kh=["figcaption","li"];class Gh extends Wh{static get pluginName(){return"Clipboard"}init(){const t=this.editor,e=t.model.document,n=t.editing.view,o=n.document;function i(n,i){const r=i.dataTransfer;i.preventDefault();const s=t.data.toView(t.model.getSelectedContent(e.selection));o.fire("clipboardOutput",{dataTransfer:r,content:s,method:n.name})}this._htmlDataProcessor=new eh,n.addObserver($h),this.listenTo(o,"clipboardInput",e=>{t.isReadOnly&&e.stop()},{priority:"highest"}),this.listenTo(o,"clipboardInput",(t,e)=>{const o=e.dataTransfer;let i="";o.getData("text/html")?i=function(t){return t.replace(/<span(?: class="Apple-converted-space"|)>(\s+)<\/span>/g,(t,e)=>1==e.length?" ":e)}(o.getData("text/html")):o.getData("text/plain")&&(i=function(t){return(t=t.replace(/</g,"&lt;").replace(/>/g,"&gt;").replace(/\n\n/g,"</p><p>").replace(/\n/g,"<br>").replace(/^\s/,"&nbsp;").replace(/\s$/,"&nbsp;").replace(/\s\s/g," &nbsp;")).indexOf("</p><p>")>-1&&(t=`<p>${t}</p>`),t}(o.getData("text/plain"))),i=this._htmlDataProcessor.toView(i),this.fire("inputTransformation",{content:i}),n.scrollToTheSelection()},{priority:"low"}),this.listenTo(this,"inputTransformation",(t,n)=>{if(!n.content.isEmpty){const t=this.editor.data,o=this.editor.model,i=t.toModel(n.content,"$clipboardHolder");if(0==i.childCount)return;o.insertContent(i,e.selection)}},{priority:"low"}),this.listenTo(o,"copy",i,{priority:"low"}),this.listenTo(o,"cut",(e,n)=>{t.isReadOnly?n.preventDefault():i(e,n)},{priority:"low"}),this.listenTo(o,"clipboardOutput",(n,o)=>{o.content.isEmpty||(o.dataTransfer.setData("text/html",this._htmlDataProcessor.toData(o.content)),o.dataTransfer.setData("text/plain",function t(e){let n="";if(e.is("text")||e.is("textProxy"))n=e.data;else if(e.is("img")&&e.hasAttribute("alt"))n=e.getAttribute("alt");else{let o=null;for(const i of e.getChildren()){const e=t(i);o&&(o.is("containerElement")||i.is("containerElement"))&&(Kh.includes(o.name)||Kh.includes(i.name)?n+="\n":n+="\n\n"),n+=e,o=i}}return n}(o.content))),"cut"==o.method&&t.model.deleteContent(e.selection)},{priority:"low"})}}class Jh{constructor(t){this.editor=t,this.set("value",void 0),this.set("isEnabled",!1),this.decorate("execute"),this.listenTo(this.editor.model.document,"change",()=>{this.refresh()}),this.on("execute",t=>{this.isEnabled||t.stop()},{priority:"high"}),this.listenTo(t,"change:isReadOnly",(t,e,n)=>{n?(this.on("set:isEnabled",Qh,{priority:"highest"}),this.isEnabled=!1):(this.off("set:isEnabled",Qh),this.refresh())})}refresh(){this.isEnabled=!0}execute(){}destroy(){this.stopListening()}}function Qh(t){t.return=!1,t.stop()}P(Jh,xo);class Yh extends Jh{execute(){const t=this.editor.model,e=t.document;t.change(n=>{!function(t,e,n,o){const i=n.isCollapsed,r=n.getFirstRange(),s=r.start.parent,a=r.end.parent;if(o.isLimit(s)||o.isLimit(a))return void(i||s!=a||t.deleteContent(n));if(i)Xh(e,n,r.start);else{const o=!(r.start.isAtStart&&r.end.isAtEnd),i=s==a;t.deleteContent(n,{leaveUnmerged:o}),o&&(i?Xh(e,n,n.focus):e.setSelection(a,0))}}(this.editor.model,n,e.selection,t.schema),this.fire("afterExecute",{writer:n})})}}function Xh(t,e,n){const o=n.parent,i=new o.constructor(o.name,o.getAttributes());n.isAtEnd?t.insert(i,n.parent,"after"):n.isAtStart?t.insert(i,n.parent,"before"):t.split(n),t.setSelection(n.parent.nextSibling,0)}class Zh extends Gi{constructor(t){super(t);const e=this.document;e.on("keydown",(t,n)=>{if(this.isEnabled&&n.keyCode==Xo.enter){let o;e.once("enter",t=>o=t,{priority:"highest"}),e.fire("enter",new Fr(e,n.domEvent,{isSoft:n.shiftKey})),o&&o.stop.called&&t.stop()}})}observe(){}}class tf extends Wh{static get pluginName(){return"Enter"}init(){const t=this.editor,e=t.editing.view,n=e.document;e.addObserver(Zh),t.commands.add("enter",new Yh(t)),this.listenTo(n,"enter",(n,o)=>{o.isSoft||(t.execute("enter"),o.preventDefault(),e.scrollToTheSelection())},{priority:"low"})}}class ef extends Jh{execute(){const t=this.editor.model,e=t.document;t.change(n=>{!function(t,e,n){const o=n.isCollapsed,i=n.getFirstRange(),r=i.start.parent,s=i.end.parent,a=r==s;if(o)nf(e,i.end);else{const o=!(i.start.isAtStart&&i.end.isAtEnd);t.deleteContent(n,{leaveUnmerged:o}),a?nf(e,n.focus):o&&e.setSelection(s,0)}}(t,n,e.selection),this.fire("afterExecute",{writer:n})})}refresh(){const t=this.editor.model,e=t.document;this.isEnabled=function(t,e){if(e.rangeCount>1)return!1;const n=e.anchor;if(!n||!t.checkChild(n,"softBreak"))return!1;const o=e.getFirstRange(),i=o.start.parent,r=o.end.parent;if((of(i,t)||of(r,t))&&i!==r)return!1;return!0}(t.schema,e.selection)}}function nf(t,e){const n=t.createElement("softBreak");t.insert(n,e),t.setSelection(n,"after")}function of(t,e){return!t.is("rootElement")&&(e.isLimit(t)||of(t.parent,e))}class rf extends Wh{static get pluginName(){return"ShiftEnter"}init(){const t=this.editor,e=t.model.schema,n=t.conversion,o=t.editing.view,i=o.document;e.register("softBreak",{allowWhere:"$text"}),n.for("upcast").add(aa({model:"softBreak",view:"br"})),n.for("downcast").add(Vs({model:"softBreak",view:(t,e)=>e.createEmptyElement("br")})),o.addObserver(Zh),t.commands.add("shiftEnter",new ef(t)),this.listenTo(i,"enter",(e,n)=>{n.isSoft&&(t.execute("shiftEnter"),n.preventDefault(),o.scrollToTheSelection())},{priority:"low"})}}class sf{constructor(t,e=20){this.model=t,this.size=0,this.limit=e,this.isLocked=!1,this._changeCallback=((t,e)=>{"transparent"!=e.type&&e!==this._batch&&this._reset(!0)}),this._selectionChangeCallback=(()=>{this._reset()}),this.model.document.on("change",this._changeCallback),this.model.document.selection.on("change:range",this._selectionChangeCallback),this.model.document.selection.on("change:attribute",this._selectionChangeCallback)}get batch(){return this._batch||(this._batch=new fu),this._batch}input(t){this.size+=t,this.size>=this.limit&&this._reset(!0)}lock(){this.isLocked=!0}unlock(){this.isLocked=!1}destroy(){this.model.document.off("change",this._changeCallback),this.model.document.selection.off("change:range",this._selectionChangeCallback),this.model.document.selection.off("change:attribute",this._selectionChangeCallback)}_reset(t){this.isLocked&&!t||(this._batch=null,this.size=0)}}class af extends Jh{constructor(t,e){super(t),this._buffer=new sf(t.model,e)}get buffer(){return this._buffer}destroy(){super.destroy(),this._buffer.destroy()}execute(t={}){const e=this.editor.model,n=e.document,o=t.text||"",i=o.length,r=t.range||n.selection.getFirstRange(),s=t.resultRange;e.enqueueChange(this._buffer.batch,t=>{const e=r.isCollapsed;this._buffer.lock(),e||t.remove(r),o&&t.insertText(o,n.selection.getAttributes(),r.start),s?t.setSelection(s):e&&t.setSelection(r.start.getShiftedBy(i)),this._buffer.unlock(),this._buffer.input(i)})}}function cf(t){let e=null;const n=t.model,o=t.editing.view,i=t.commands.get("input");function r(){const t=i.buffer;t.lock(),n.enqueueChange(t.batch,()=>{n.deleteContent(n.document.selection)}),t.unlock()}o.document.on("keydown",(t,s)=>(function(t){const s=n.document,a=o.document.isComposing,c=e&&e.isEqual(s.selection);if(e=null,!i.isEnabled)return;if(function(t){if(t.ctrlKey)return!0;return lf.includes(t.keyCode)}(t)||s.selection.isCollapsed)return;if(a&&229===t.keyCode)return;if(!a&&229===t.keyCode&&c)return;r()})(s),{priority:"lowest"}),o.document.on("compositionstart",function(){const t=n.document,e=1!==t.selection.rangeCount||t.selection.getFirstRange().isFlat;if(t.selection.isCollapsed||e)return;r()},{priority:"lowest"}),o.document.on("compositionend",()=>{e=new Ts(n.document.selection)},{priority:"lowest"})}const lf=[Zo("arrowUp"),Zo("arrowRight"),Zo("arrowDown"),Zo("arrowLeft"),9,16,17,18,20,27,33,34,35,36];for(let t=112;t<=135;t++)lf.push(t);function df(t){if(0==t.length)return!1;for(const e of t)if("children"===e.type&&!uf(e))return!0;return!1}function uf(t){if(t.newChildren.length-t.oldChildren.length!=1)return;const e=function(t,e){const n=[];let o,i=0;return t.forEach(t=>{"equal"==t?(r(),i++):"insert"==t?(s("insert")?o.values.push(e[i]):(r(),o={type:"insert",index:i,values:[e[i]]}),i++):s("delete")?o.howMany++:(r(),o={type:"delete",index:i,howMany:1})}),r(),n;function r(){o&&(n.push(o),o=null)}function s(t){return o&&o.type==t}}(Ti(t.oldChildren,t.newChildren,hf),t.newChildren);if(e.length>1)return;const n=e[0];return n.values[0]instanceof On?n:void 0}function hf(t,e){return t instanceof On&&e instanceof On?t.data===e.data:t===e}class ff{constructor(t){this.editor=t,this.editing=this.editor.editing}handle(t,e){if(df(t))this._handleContainerChildrenMutations(t,e);else for(const n of t)this._handleTextMutation(n,e),this._handleTextNodeInsertion(n)}_handleContainerChildrenMutations(t,e){const n=function(t){const e=t.map(t=>t.node).reduce((t,e)=>t.getCommonAncestor(e,{includeSelf:!0}));if(!e)return;return e.getAncestors({includeSelf:!0,parentFirst:!0}).find(t=>t.is("containerElement")||t.is("rootElement"))}(t);if(!n)return;const o=this.editor.editing.view.domConverter.mapViewToDom(n),i=new zi,r=this.editor.data.toModel(i.domToView(o)).getChild(0),s=this.editor.editing.mapper.toModelElement(n);if(!s)return;const a=Array.from(r.getChildren()),c=Array.from(s.getChildren()),l=a[a.length-1],d=c[c.length-1];if(l&&l.is("softBreak")&&d&&!d.is("softBreak")&&a.pop(),!pf(a)||!pf(c))return;const u=a.map(t=>t.is("text")?t.data:"@").join("").replace(/\u00A0/g," "),h=c.map(t=>t.is("text")?t.data:"@").join("");if(h===u)return;const f=Ti(h,u),{firstChangeAt:p,insertions:m,deletions:g}=mf(f);let b=null;e&&(b=this.editing.mapper.toModelRange(e.getFirstRange()));const w=u.substr(p,m),v=_s.createFromParentsAndOffsets(s,p,s,p+g);this.editor.execute("input",{text:w,range:v,resultRange:b})}_handleTextMutation(t,e){if("text"!=t.type)return;const n=t.newText.replace(/\u00A0/g," "),o=Ti(t.oldText.replace(/\u00A0/g," "),n),{firstChangeAt:i,insertions:r,deletions:s}=mf(o);let a=null;e&&(a=this.editing.mapper.toModelRange(e.getFirstRange()));const c=new Fo(t.node,i),l=this.editing.mapper.toModelPosition(c),d=_s.createFromPositionAndShift(l,s),u=n.substr(i,r);this.editor.execute("input",{text:u,range:d,resultRange:a})}_handleTextNodeInsertion(t){if("children"!=t.type)return;const e=uf(t),n=new Fo(t.node,e.index),o=this.editing.mapper.toModelPosition(n),i=e.values[0].data;this.editor.execute("input",{text:i.replace(/\u00A0/g," "),range:new _s(o)})}}function pf(t){return t.every(t=>t.is("text")||t.is("softBreak"))}function mf(t){let e=null,n=null;for(let o=0;o<t.length;o++){"equal"!=t[o]&&(e=null===e?o:e,n=o)}let o=0,i=0;for(let r=e;r<=n;r++)"insert"!=t[r]&&o++,"delete"!=t[r]&&i++;return{insertions:i,deletions:o,firstChangeAt:e}}class gf extends Wh{static get pluginName(){return"Input"}init(){const t=this.editor,e=new af(t,t.config.get("typing.undoStep")||20);t.commands.add("input",e),cf(t),function(t){t.editing.view.document.on("mutations",(e,n,o)=>{new ff(t).handle(n,o)})}(t)}}class bf extends Jh{constructor(t,e){super(t),this.direction=e,this._buffer=new sf(t.model,t.config.get("typing.undoStep"))}execute(t={}){const e=this.editor.model,n=e.document;e.enqueueChange(this._buffer.batch,o=>{this._buffer.lock();const i=new Ts(n.selection),r=i.isCollapsed;if(i.isCollapsed&&e.modifySelection(i,{direction:this.direction,unit:t.unit}),this._shouldEntireContentBeReplacedWithParagraph(t.sequence||1))return void this._replaceEntireContentWithParagraph(o);if(i.isCollapsed)return;let s=0;i.getFirstRange().getMinimalFlatRanges().forEach(t=>{s+=Do(t.getWalker({singleCharacters:!0,ignoreElementEnd:!0,shallow:!0}))}),e.deleteContent(i,{doNotResetEntireContent:r}),this._buffer.input(s),o.setSelection(i),this._buffer.unlock()})}_shouldEntireContentBeReplacedWithParagraph(t){if(t>1)return!1;const e=this.editor.model,n=e.document.selection,o=e.schema.getLimitElement(n);if(!(n.isCollapsed&&n.containsEntireContent(o)))return!1;if(!e.schema.checkChild(o,"paragraph"))return!1;const i=o.getChild(0);return!i||"paragraph"!==i.name}_replaceEntireContentWithParagraph(t){const e=this.editor.model,n=e.document.selection,o=e.schema.getLimitElement(n),i=new ms("paragraph");t.remove(_s.createIn(o)),t.insert(i,o),t.setSelection(i,0)}}class wf extends Gi{constructor(t){super(t);const e=t.document;let n=0;e.on("keyup",(t,e)=>{e.keyCode!=Xo.delete&&e.keyCode!=Xo.backspace||(n=0)}),e.on("keydown",(t,o)=>{const i={};if(o.keyCode==Xo.delete)i.direction="forward",i.unit="character";else{if(o.keyCode!=Xo.backspace)return;i.direction="backward",i.unit="codePoint"}const r=Jo.isMac?o.altKey:o.ctrlKey;let s;i.unit=r?"word":i.unit,i.sequence=++n,e.once("delete",t=>s=t,{priority:"highest"}),e.fire("delete",new Fr(e,o.domEvent,i)),s&&s.stop.called&&t.stop()})}observe(){}}function vf(t){const e=t.model,n=t.editing.view,o=200;let i=null,r=new Ts(e.document.selection),s=Date.now();e.document.selection.on("change",function(t){const e=new Ts(t.source);r.isEqual(e)||(i=r,r=e,s=Date.now())}),n.document.on("mutations",function(n,a){df(a)&&function(t){for(const e of t){if("children"!==e.type)continue;const t=e.oldChildren,n=e.newChildren;if(!_f(t))continue;const o=Ti(t,n),i=o.some(t=>"delete"===t),r=o.some(t=>"insert"===t);if(i&&!r)return!0}return!1}(a)&&(!function(){Date.now()-s<o&&i&&!i.isCollapsed&&r.isCollapsed&&r.getLastPosition().isEqual(i.getLastPosition())&&e.enqueueChange(t=>{t.setSelection(i)});t.execute("delete")}(),n.stop())},{priority:"highest"})}function _f(t){return t.every(t=>t.is("containerElement"))}class kf extends Wh{static get pluginName(){return"Delete"}init(){const t=this.editor,e=t.editing.view,n=e.document;e.addObserver(wf),t.commands.add("forwardDelete",new bf(t,"forward")),t.commands.add("delete",new bf(t,"backward")),this.listenTo(n,"delete",(n,o)=>{t.execute("forward"==o.direction?"forwardDelete":"delete",{unit:o.unit,sequence:o.sequence}),o.preventDefault(),e.scrollToTheSelection()}),vf(t)}}class yf extends Wh{static get requires(){return[gf,kf]}static get pluginName(){return"Typing"}}class xf extends Jh{constructor(t){super(t),this._stack=[],this._createdBatches=new WeakSet,this.refresh()}refresh(){this.isEnabled=this._stack.length>0}addBatch(t){const e=this.editor.model.document.selection,n={ranges:e.hasOwnRange?Array.from(e.getRanges()):[],isBackward:e.isBackward};this._stack.push({batch:t,selection:n}),this.refresh()}clearStack(){this._stack=[],this.refresh()}_restoreSelection(t,e,n){const o=this.editor.model,i=o.document,r=[];for(const e of t){const t=Af(e,n).find(t=>t.start.root!=i.graveyard);t&&r.push(t)}r.length&&o.change(t=>{t.setSelection(r,{backward:e})})}_undo(t,e){const n=this.editor.model,o=n.document;this._createdBatches.add(e);const i=t.deltas.slice();i.reverse();for(const t of i)if(t.operations.some(t=>t.isDocumentOperation)){const i=t.baseVersion+t.operations.length,r=Array.from(o.history.getDeltas(i)),s=n.transformDeltas([t.getReversed()],r,!0).deltasA;for(const i of s){i.baseVersion=o.version,e.addDelta(i);for(const t of i.operations)n.applyOperation(t);o.history.setDeltaAsUndone(t,i)}}}}function Af(t,e){const n=function(t,e){for(const n of e)for(const e of n.operations)for(let n=0;n<t.length;n++){let o;switch(e.type){case"insert":o=t[n]._getTransformedByInsertion(e.position,e.nodes.maxOffset,!0);break;case"move":case"remove":case"reinsert":o=t[n]._getTransformedByMove(e.sourcePosition,e.targetPosition,e.howMany,!0)}o&&(t.splice(n,1,...o),n=n+o.length-1)}return t}([t],e);n.sort((t,e)=>t.start.isBefore(e.start)?-1:1);for(let t=1;t<n.length;t++){const e=n[t-1],o=n[t];e.end.isTouching(o.start)&&(e.end=o.end,n.splice(t,1),t--)}return n}class Cf extends xf{execute(t=null){const e=t?this._stack.findIndex(e=>e.batch==t):this._stack.length-1,n=this._stack.splice(e,1)[0],o=new fu;this.editor.model.enqueueChange(o,()=>{this._undo(n.batch,o);const t=this.editor.model.document.history.getDeltas(n.batch.baseVersion);this._restoreSelection(n.selection.ranges,n.selection.isBackward,t),this.fire("revert",n.batch,o)}),this.refresh()}}class Tf extends xf{execute(){const t=this._stack.pop(),e=new fu;this.editor.model.enqueueChange(e,()=>{const n=t.batch.deltas[t.batch.deltas.length-1],o=n.baseVersion+n.operations.length,i=this.editor.model.document.history.getDeltas(o);this._restoreSelection(t.selection.ranges,t.selection.isBackward,i),this._undo(t.batch,e)}),this.refresh()}}class Sf extends Wh{constructor(t){super(t),this._batchRegistry=new WeakSet}init(){const t=this.editor;this._undoCommand=new Cf(t),this._redoCommand=new Tf(t),t.commands.add("undo",this._undoCommand),t.commands.add("redo",this._redoCommand),this.listenTo(t.model,"applyOperation",(t,e)=>{const n=e[0];if(!n.isDocumentOperation)return;const o=n.delta.batch;this._batchRegistry.has(o)||"transparent"==o.type||(this._redoCommand._createdBatches.has(o)?this._undoCommand.addBatch(o):this._undoCommand._createdBatches.has(o)||(this._undoCommand.addBatch(o),this._redoCommand.clearStack()),this._batchRegistry.add(o))},{priority:"highest"}),this.listenTo(this._undoCommand,"revert",(t,e,n)=>{this._redoCommand.addBatch(n)}),t.keystrokes.set("CTRL+Z","undo"),t.keystrokes.set("CTRL+Y","redo"),t.keystrokes.set("CTRL+SHIFT+Z","redo")}}n(46);class Ef extends Eh{constructor(){super();const t=this.bindTemplate;this.set("content",""),this.set("viewBox","0 0 20 20"),this.set("fillColor",""),this.setTemplate({tag:"svg",ns:"http://www.w3.org/2000/svg",attributes:{class:["ck","ck-icon"],viewBox:t.to("viewBox")}})}render(){super.render(),this._updateXMLContent(),this._colorFillPaths(),this.on("change:content",()=>{this._updateXMLContent(),this._colorFillPaths()}),this.on("change:fillColor",()=>{this._colorFillPaths()})}_updateXMLContent(){if(this.content){const t=(new DOMParser).parseFromString(this.content.trim(),"image/svg+xml").querySelector("svg"),e=t.getAttribute("viewBox");for(e&&(this.viewBox=e),this.element.innerHTML="";t.childNodes.length>0;)this.element.appendChild(t.childNodes[0])}}_colorFillPaths(){this.fillColor&&this.element.querySelectorAll(".ck-icon__fill").forEach(t=>{t.style.fill=this.fillColor})}}n(48);class Pf extends Eh{constructor(t){super(t),this.set("text",""),this.set("position","s");const e=this.bindTemplate;this.setTemplate({tag:"span",attributes:{class:["ck","ck-tooltip",e.to("position",t=>"ck-tooltip_"+t),e.if("text","ck-hidden",t=>!t.trim())]},children:[{tag:"span",attributes:{class:["ck","ck-tooltip__text"]},children:[{text:e.to("text")}]}]})}}n(50);class Of extends Eh{constructor(t){super(t);const e=this.bindTemplate,n=w();this.set("class"),this.set("labelStyle"),this.set("icon"),this.set("isEnabled",!0),this.set("isOn",!1),this.set("isVisible",!0),this.set("keystroke"),this.set("label"),this.set("tabindex",-1),this.set("tooltip"),this.set("tooltipPosition","s"),this.set("type","button"),this.set("withText",!1),this.children=this.createCollection(),this.tooltipView=this._createTooltipView(),this.labelView=this._createLabelView(n),this.iconView=new Ef,this.iconView.extendTemplate({attributes:{class:"ck-button__icon"}}),this.bind("_tooltipString").to(this,"tooltip",this,"label",this,"keystroke",this._getTooltipString.bind(this)),this.setTemplate({tag:"button",attributes:{class:["ck","ck-button",e.to("class"),e.if("isEnabled","ck-disabled",t=>!t),e.if("isVisible","ck-hidden",t=>!t),e.to("isOn",t=>t?"ck-on":"ck-off"),e.if("withText","ck-button_with-text")],type:e.to("type",t=>t||"button"),tabindex:e.to("tabindex"),"aria-labelledby":`ck-editor__aria-label_${n}`,"aria-disabled":e.if("isEnabled",!0,t=>!t),"aria-pressed":e.if("isOn",!0)},children:this.children,on:{mousedown:e.to(t=>{t.preventDefault()}),click:e.to(t=>{this.isEnabled?this.fire("execute"):t.preventDefault()})}})}render(){super.render(),this.icon&&(this.iconView.bind("content").to(this,"icon"),this.children.add(this.iconView)),this.children.add(this.tooltipView),this.children.add(this.labelView)}focus(){this.element.focus()}_createTooltipView(){const t=new Pf;return t.bind("text").to(this,"_tooltipString"),t.bind("position").to(this,"tooltipPosition"),t}_createLabelView(t){const e=new Eh,n=this.bindTemplate;return e.setTemplate({tag:"span",attributes:{class:["ck","ck-button__label"],style:n.to("labelStyle"),id:`ck-editor__aria-label_${t}`},children:[{text:this.bindTemplate.to("label")}]}),e}_getTooltipString(t,e,n){return t?"string"==typeof t?t:(n&&(n=function(t){return Jo.isMac?ei(t).map(t=>Yo[t.toLowerCase()]||t).reduce((t,e)=>t.slice(-1)in Qo?t+e:t+"+"+e):t}(n)),t instanceof Function?t(e,n):`${e}${n?` (${n})`:""}`):""}}var Rf=n(17),If=n.n(Rf),Mf=n(18),Ff=n.n(Mf);class Vf extends Wh{init(){const t=this.editor.t;this._addButton("undo",t("ai"),"CTRL+Z",If.a),this._addButton("redo",t("aj"),"CTRL+Y",Ff.a)}_addButton(t,e,n,o){const i=this.editor;i.ui.componentFactory.add(t,r=>{const s=i.commands.get(t),a=new Of(r);return a.set({label:e,icon:o,keystroke:n,tooltip:!0}),a.bind("isEnabled").to(s,"isEnabled"),this.listenTo(a,"execute",()=>i.execute(t)),a})}}class Nf extends Wh{static get requires(){return[Sf,Vf]}static get pluginName(){return"Undo"}}class Df extends Wh{static get pluginName(){return"PendingActions"}init(){this.set("hasAny",!1),this._actions=new jo({idProperty:"_id"}),this._actions.delegate("add","remove").to(this)}add(t){if("string"!=typeof t)throw new m.b("pendingactions-add-invalid-message: The message must be a string.");const e=Object.create(xo);return e.set("message",t),this._actions.add(e),this.hasAny=!0,e}remove(t){this._actions.remove(t),this.hasAny=!!this._actions.length}get first(){return this._actions.get(0)}[Symbol.iterator](){return this._actions[Symbol.iterator]()}}class Bf{constructor(){const t=new window.FileReader;this._reader=t,this.set("loaded",0),t.onprogress=(t=>{this.loaded=t.loaded})}get error(){return this._reader.error}read(t){const e=this._reader;return this.total=t.size,new Promise((n,o)=>{e.onload=(()=>{n(e.result)}),e.onerror=(()=>{o("error")}),e.onabort=(()=>{o("aborted")}),this._reader.readAsDataURL(t)})}abort(){this._reader.abort()}}P(Bf,xo);class Lf extends Wh{static get pluginName(){return"FileRepository"}static get requires(){return[Df]}init(){this.loaders=new jo,this.loaders.on("add",()=>this._updatePendingAction()),this.loaders.on("remove",()=>this._updatePendingAction()),this._pendingAction=null,this.set("uploaded",0),this.set("uploadTotal",null),this.bind("uploadedPercent").to(this,"uploaded",this,"uploadTotal",(t,e)=>e?t/e*100:0)}getLoader(t){for(const e of this.loaders)if(e.file==t)return e;return null}createLoader(t){if(!this.createUploadAdapter)return Ur.a.error("filerepository-no-upload-adapter: Upload adapter is not defined."),null;const e=new jf(t);return e._adapter=this.createUploadAdapter(e),this.loaders.add(e),e.on("change:uploaded",()=>{let t=0;for(const e of this.loaders)t+=e.uploaded;this.uploaded=t}),e.on("change:uploadTotal",()=>{let t=0;for(const e of this.loaders)e.uploadTotal&&(t+=e.uploadTotal);this.uploadTotal=t}),e}destroyLoader(t){const e=t instanceof jf?t:this.getLoader(t);e._destroy(),this.loaders.remove(e)}_updatePendingAction(){const t=this.editor.plugins.get(Df);if(this.loaders.length){if(!this._pendingAction){const e=this.editor.t,n=t=>`${e("s")} ${parseInt(t)}%.`;this._pendingAction=t.add(n(this.uploadedPercent)),this._pendingAction.bind("message").to(this,"uploadedPercent",n)}}else t.remove(this._pendingAction),this._pendingAction=null}}P(Lf,xo);class jf{constructor(t,e){this.id=w(),this.file=t,this._adapter=e,this._reader=new Bf,this.set("status","idle"),this.set("uploaded",0),this.set("uploadTotal",null),this.bind("uploadedPercent").to(this,"uploaded",this,"uploadTotal",(t,e)=>e?t/e*100:0),this.set("uploadResponse",null)}read(){if("idle"!=this.status)throw new m.b("filerepository-read-wrong-status: You cannot call read if the status is different than idle.");return this.status="reading",this._reader.read(this.file).then(t=>(this.status="idle",t)).catch(t=>{if("aborted"===t)throw this.status="aborted","aborted";throw this.status="error",this._reader.error})}upload(){if("idle"!=this.status)throw new m.b("filerepository-upload-wrong-status: You cannot call upload if the status is different than idle.");return this.status="uploading",this._adapter.upload().then(t=>(this.uploadResponse=t,this.status="idle",t)).catch(t=>{if("aborted"===this.status)throw"aborted";throw this.status="error",t})}abort(){const t=this.status;this.status="aborted","reading"==t&&this._reader.abort(),"uploading"==t&&this._adapter.abort&&this._adapter.abort(),this._destroy()}_destroy(){this._reader=void 0,this._adapter=void 0,this.data=void 0,this.uploadResponse=void 0,this.file=void 0}}P(jf,xo);const zf="ckCsrfToken",qf=40,Uf="abcdefghijklmnopqrstuvwxyz0123456789";function Wf(){let t=function(t){t=t.toLowerCase();const e=document.cookie.split(";");for(const n of e){const e=n.split("="),o=decodeURIComponent(e[0].trim().toLowerCase());if(o===t)return decodeURIComponent(e[1])}return null}(zf);return t&&t.length==qf||(t=function(t){let e="";const n=new Uint8Array(t);window.crypto.getRandomValues(n);for(let t=0;t<n.length;t++){const o=Uf.charAt(n[t]%Uf.length);e+=Math.random()>.5?o.toUpperCase():o}return e}(qf),function(t,e){document.cookie=encodeURIComponent(t)+"="+encodeURIComponent(e)+";path=/"}(zf,t)),t}class Hf{constructor(t,e,n){this.loader=t,this.url=e,this.t=n}upload(){return new Promise((t,e)=>{this._initRequest(),this._initListeners(t,e),this._sendRequest()})}abort(){this.xhr&&this.xhr.abort()}_initRequest(){const t=this.xhr=new XMLHttpRequest;t.open("POST",this.url,!0),t.responseType="json"}_initListeners(t,e){const n=this.xhr,o=this.loader,i=(0,this.t)("a")+` ${o.file.name}.`;n.addEventListener("error",()=>e(i)),n.addEventListener("abort",()=>e()),n.addEventListener("load",()=>{const o=n.response;if(!o||!o.uploaded)return e(o&&o.error&&o.error.message?o.error.message:i);t({default:o.url})}),n.upload&&n.upload.addEventListener("progress",t=>{t.lengthComputable&&(o.uploadTotal=t.total,o.uploaded=t.loaded)})}_sendRequest(){const t=new FormData;t.append("upload",this.loader.file),t.append("ckCsrfToken",Wf()),this.xhr.send(t)}}class $f{constructor(t,e,n){let o;if("function"==typeof n)o=n;else{const e=n;o=(()=>{t.execute(e)})}t.model.document.on("change",(n,i)=>{if("transparent"==i.type)return;const r=Array.from(t.model.document.differ.getChanges()),s=r[0];if(1!=r.length||"insert"!==s.type||"$text"!=s.name||1!=s.length)return;const a=s.position.textNode||s.position.nodeAfter;if(!a.parent.is("paragraph"))return;const c=e.exec(a.data);c&&t.model.enqueueChange(t=>{const e=_s.createFromParentsAndOffsets(a.parent,0,a.parent,c[0].length);t.remove(e),o({match:c})})})}}class Kf{constructor(t,e,n){let o,i,r,s;e instanceof RegExp?o=e:r=e,"string"==typeof n?i=n:s=n,r=r||(t=>{let e;const n=[],i=[];for(;null!==(e=o.exec(t))&&!(e&&e.length<4);){let{index:t,1:o,2:r,3:s}=e;const a=o+r+s,c=[t+=e[0].length-a.length,t+o.length],l=[t+o.length+r.length,t+o.length+r.length+s.length];n.push(c),n.push(l),i.push([t+o.length,t+o.length+r.length])}return{remove:n,format:i}}),s=s||((t,e)=>{for(const n of e)t.setAttribute(i,!0,n);t.removeSelectionAttribute(i)}),t.model.document.on("change",(e,n)=>{if("transparent"==n.type)return;const o=t.model.document.selection;if(!o.isCollapsed)return;const a=Array.from(t.model.document.differ.getChanges()),c=a[0];if(1!=a.length||"insert"!==c.type||"$text"!=c.name||1!=c.length)return;const l=o.focus.parent,d=function(t){return Array.from(t.getChildren()).reduce((t,e)=>t+e.data,"")}(l).slice(0,o.focus.offset),u=r(d),h=Gf(l,u.format),f=Gf(l,u.remove);h.length&&f.length&&t.model.enqueueChange(e=>{const n=t.model.schema.getValidRanges(h,i);s(e,n);for(const t of f.reverse())e.remove(t)})})}}function Gf(t,e){return e.filter(t=>void 0!==t[0]&&void 0!==t[1]).map(e=>_s.createFromParentsAndOffsets(t,e[0],t,e[1]))}class Jf extends Jh{constructor(t,e){super(t),this.attributeKey=e}refresh(){const t=this.editor.model,e=t.document;this.value=this._getValueFromFirstAllowedNode(),this.isEnabled=t.schema.checkAttributeInSelection(e.selection,this.attributeKey)}execute(t={}){const e=this.editor.model,n=e.document.selection,o=void 0===t.forceValue?!this.value:t.forceValue;e.change(t=>{if(n.isCollapsed)o?t.setSelectionAttribute(this.attributeKey,!0):t.removeSelectionAttribute(this.attributeKey);else{const i=e.schema.getValidRanges(n.getRanges(),this.attributeKey);for(const e of i)o?t.setAttribute(this.attributeKey,o,e):t.removeAttribute(this.attributeKey,e)}})}_getValueFromFirstAllowedNode(){const t=this.editor.model,e=t.schema,n=t.document.selection;if(n.isCollapsed)return n.hasAttribute(this.attributeKey);for(const t of n.getRanges())for(const n of t.getItems())if(e.checkAttribute(n,this.attributeKey))return n.hasAttribute(this.attributeKey);return!1}}const Qf="bold";class Yf extends Wh{init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:Qf}),t.conversion.attributeToElement({model:Qf,view:"strong",upcastAlso:["b",{styles:{"font-weight":"bold"}}]}),t.commands.add(Qf,new Jf(t,Qf)),t.keystrokes.set("CTRL+B",Qf)}}var Xf=n(19),Zf=n.n(Xf);const tp="bold";class ep extends Wh{init(){const t=this.editor,e=t.t;t.ui.componentFactory.add(tp,n=>{const o=t.commands.get(tp),i=new Of(n);return i.set({label:e("c"),icon:Zf.a,keystroke:"CTRL+B",tooltip:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",()=>t.execute(tp)),i})}}const np="italic";class op extends Wh{init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:np}),t.conversion.attributeToElement({model:np,view:"i",upcastAlso:["em",{styles:{"font-style":"italic"}}]}),t.commands.add(np,new Jf(t,np)),t.keystrokes.set("CTRL+I",np)}}var ip=n(20),rp=n.n(ip);const sp="italic";class ap extends Wh{init(){const t=this.editor,e=t.t;t.ui.componentFactory.add(sp,n=>{const o=t.commands.get(sp),i=new Of(n);return i.set({label:e("f"),icon:rp.a,keystroke:"CTRL+I",tooltip:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",()=>t.execute(sp)),i})}}function cp(t){const e=t.next();return e.done?null:e.value}class lp extends Jh{refresh(){this.value=this._getValue(),this.isEnabled=this._checkEnabled()}execute(){const t=this.editor.model,e=t.document,n=t.schema,o=Array.from(e.selection.getSelectedBlocks());t.change(t=>{if(this.value)this._removeQuote(t,o.filter(dp));else{const e=o.filter(t=>dp(t)||hp(n,t));this._applyQuote(t,e)}})}_getValue(){const t=cp(this.editor.model.document.selection.getSelectedBlocks());return!(!t||!dp(t))}_checkEnabled(){if(this.value)return!0;const t=this.editor.model.document.selection,e=this.editor.model.schema,n=cp(t.getSelectedBlocks());return!!n&&hp(e,n)}_removeQuote(t,e){up(e).reverse().forEach(e=>{if(e.start.isAtStart&&e.end.isAtEnd)return void t.unwrap(e.start.parent);if(e.start.isAtStart){const n=vs.createBefore(e.start.parent);return void t.move(e,n)}e.end.isAtEnd||t.split(e.end);const n=vs.createAfter(e.end.parent);t.move(e,n)})}_applyQuote(t,e){const n=[];up(e).reverse().forEach(e=>{let o=dp(e.start);o||(o=new ms("blockQuote"),t.wrap(e,o)),n.push(o)}),n.reverse().reduce((e,n)=>e.nextSibling==n?(t.merge(vs.createAfter(e)),e):n)}}function dp(t){return"blockQuote"==t.parent.name?t.parent:null}function up(t){let e,n=0;const o=[];for(;n<t.length;){const i=t[n],r=t[n+1];e||(e=vs.createBefore(i)),r&&i.nextSibling==r||(o.push(new _s(e,vs.createAfter(i))),e=null),n++}return o}function hp(t,e){const n=t.checkChild(e.parent,"blockQuote"),o=t.checkChild(["$root","blockQuote"],e);return n&&o}class fp extends Wh{init(){const t=this.editor,e=t.model.schema;t.commands.add("blockQuote",new lp(t)),e.register("blockQuote",{allowWhere:"$block",allowContentOf:"$root"}),e.addChildCheck((t,e)=>{if(t.endsWith("blockQuote")&&"blockQuote"==e.name)return!1}),t.conversion.elementToElement({model:"blockQuote",view:"blockquote"})}afterInit(){const t=this.editor.commands.get("blockQuote");this.listenTo(this.editor.editing.view.document,"enter",(e,n)=>{const o=this.editor.model.document,i=o.selection.getLastPosition().parent;o.selection.isCollapsed&&i.isEmpty&&t.value&&(this.editor.execute("blockQuote"),this.editor.editing.view.scrollToTheSelection(),n.preventDefault(),e.stop())})}}var pp=n(21),mp=n.n(pp);n(52);class gp extends Wh{init(){const t=this.editor,e=t.t;t.ui.componentFactory.add("blockQuote",n=>{const o=t.commands.get("blockQuote"),i=new Of(n);return i.set({label:e("b"),icon:mp.a,tooltip:!0}),i.bind("isOn","isEnabled").to(o,"value","isEnabled"),this.listenTo(i,"execute",()=>t.execute("blockQuote")),i})}}const bp=/^data:(\S*?);base64,/;class wp{constructor(t,e,n){if(!t)throw new Error("File must be provided");if(!e)throw new Error("Token must be provided");if(!n)throw new Error("Api address must be provided");this.file=function(t){if("string"!=typeof t)return!1;const e=t.match(bp);return!(!e||!e.length)}(t)?function(t,e=512){try{const n=t.match(bp)[1],o=atob(t.replace(bp,"")),i=[];for(let t=0;t<o.length;t+=e){const n=o.slice(t,t+e),r=new Array(n.length);for(let t=0;t<n.length;t++)r[t]=n.charCodeAt(t);i.push(new Uint8Array(r))}return new Blob(i,{type:n})}catch(t){throw new Error("Problem with decoding Base64 image data.")}}(t):t,this._token=e,this._apiAddress=n}onProgress(t){return this.on("progress",(e,n)=>t(n)),this}onError(t){return this.once("error",(e,n)=>t(n)),this}abort(){this.xhr.abort()}send(){return this._prepareRequest(),this._attachXHRListeners(),this._sendRequest()}_prepareRequest(){const t=new XMLHttpRequest;t.open("POST",this._apiAddress),t.setRequestHeader("Authorization",this._token.value),t.responseType="json",this.xhr=t}_attachXHRListeners(){const t=this,e=this.xhr;function n(e){return()=>t.fire("error",e)}e.addEventListener("error",n("Network Error")),e.addEventListener("abort",n("Abort")),e.upload&&e.upload.addEventListener("progress",t=>{t.lengthComputable&&this.fire("progress",{total:t.total,uploaded:t.loaded})}),e.addEventListener("load",()=>{const t=e.status,n=e.response;if(t<200||t>299)return this.fire("error",n.message||n.error)})}_sendRequest(){const t=new FormData,e=this.xhr;return t.append("file",this.file),new Promise((n,o)=>{e.addEventListener("load",()=>{const t=e.status,i=e.response;return t<200||t>299?o(i.message||i.error):n(i)}),e.addEventListener("error",()=>o("Network Error")),e.addEventListener("abort",()=>o("Abort")),e.send(t)})}}P(wp,y);var vp=wp;const _p={refreshInterval:36e5,autoRefresh:!0};class kp{constructor(t,e=_p){if(!t)throw new Error("`tokenUrl` must be provided");this.set("value",e.initValue),this._tokenUrl=t,this._options=Object.assign({},_p,e)}init(){return new Promise((t,e)=>{this._options.autoRefresh&&this._startRefreshing(),this.value?t(this):this._refreshToken().then(t).catch(e)})}_refreshToken(){return new Promise((t,e)=>{const n=new XMLHttpRequest;n.open("GET",this._tokenUrl),n.addEventListener("load",()=>{const o=n.status,i=n.response;return o<200||o>299?e("Cannot download new token!"):(this.set("value",i),t(this))}),n.addEventListener("error",()=>e("Network Error")),n.addEventListener("abort",()=>e("Abort")),n.send()})}_startRefreshing(){this._refreshInterval=setInterval(this._refreshToken.bind(this),this._options.refreshInterval)}_stopRefreshing(){clearInterval(this._refreshInterval)}static create(t,e=_p){return new kp(t,e).init()}}P(kp,xo);var yp=kp;class xp extends Wh{init(){const t=this.editor.config.get("cloudServices")||{};for(const e in t)this[e]=t[e];if(this.tokenUrl)return this.token=new xp.Token(this.tokenUrl),this.token.init();this.token=null}}xp.Token=yp;class Ap extends Wh{static get requires(){return[Lf,xp]}init(){const t=this.editor,e=t.plugins.get(xp),n=e.token,o=e.uploadUrl;n&&(this._uploadGateway=new Ap._UploadGateway(n,o),t.plugins.get(Lf).createUploadAdapter=(t=>new Cp(this._uploadGateway,t)))}}class Cp{constructor(t,e){this.uploadGateway=t,this.loader=e}upload(){return this.fileUploader=this.uploadGateway.upload(this.loader.file),this.fileUploader.on("progress",(t,e)=>{this.loader.uploadTotal=e.total,this.loader.uploaded=e.uploaded}),this.fileUploader.send()}abort(){this.fileUploader.abort()}}Ap._UploadGateway=class{constructor(t,e){if(!t)throw new Error("Token must be provided");if(!e)throw new Error("Api address must be provided");this._token=t,this._apiAddress=e}upload(t){return new vp(t,this._token,this._apiAddress)}};class Tp extends Gi{constructor(t){super(t),this._observedElements=new Set}observe(t,e){this.document.getRoot(e).on("change:children",(e,n)=>{this.view.once("render",()=>this._updateObservedElements(t,n))})}_updateObservedElements(t,e){if(!e.is("element")||e.is("attributeElement"))return;const n=this.view.domConverter.mapViewToDom(e);if(n){for(const t of n.querySelectorAll("img"))this._observedElements.has(t)||(this.listenTo(t,"load",(t,e)=>this._fireEvents(e)),this._observedElements.add(t));for(const e of this._observedElements)t.contains(e)||(this.stopListening(e),this._observedElements.delete(e))}}_fireEvents(t){this.isEnabled&&(this.document.fire("layoutChanged"),this.document.fire("imageLoaded",t))}destroy(){this._observedElements.clear(),super.destroy()}}function Sp(t){return n=>{n.on(`attribute:${t}:image`,e)};function e(t,e,n){if(!n.consumable.consume(e.item,t.name))return;const o=n.writer,i=n.mapper.toViewElement(e.item).getChild(0);null!==e.attributeNewValue?o.setAttribute(e.attributeKey,e.attributeNewValue,i):o.removeAttribute(e.attributeKey,i)}}class Ep{constructor(){this._stack=[]}add(t,e){const n=this._stack,o=n[0];this._insertDescriptor(t);const i=n[0];o===i||Pp(o,i)||this.fire("change:top",{oldDescriptor:o,newDescriptor:i,writer:e})}remove(t,e){const n=this._stack,o=n[0];this._removeDescriptor(t);const i=n[0];o===i||Pp(o,i)||this.fire("change:top",{oldDescriptor:o,newDescriptor:i,writer:e})}_insertDescriptor(t){const e=this._stack,n=e.findIndex(e=>e.id===t.id);if(Pp(t,e[n]))return;n>-1&&e.splice(n,1);let o=0;for(;e[o]&&Op(e[o],t);)o++;e.splice(o,0,t)}_removeDescriptor(t){const e=this._stack,n=e.findIndex(e=>e.id===t);n>-1&&e.splice(n,1)}}function Pp(t,e){return t&&e&&t.priority==e.priority&&Rp(t.classes)==Rp(e.classes)}function Op(t,e){return t.priority>e.priority||!(t.priority<e.priority)&&Rp(t.classes)>Rp(e.classes)}function Rp(t){return Array.isArray(t)?t.sort().join(","):t}P(Ep,y);var Ip=n(22),Mp=n.n(Ip);const Fp=Symbol("isWidget"),Vp=Symbol("label"),Np="ck-widget",Dp="ck-widget_selected";function Bp(t){return!!t.getCustomProperty(Fp)}function Lp(t,e,n={}){return Jo.isEdge||e.setAttribute("contenteditable","false",t),e.addClass(Np,t),e.setCustomProperty(Fp,!0,t),t.getFillerOffset=zp,n.label&&function(t,e,n){n.setCustomProperty(Vp,e,t)}(t,n.label,e),n.hasSelectionHandler&&function(t,e){const n=e.createUIElement("div",{class:"ck ck-widget__selection-handler"},function(t){const e=this.toDomElement(t),n=new Ef;return n.set("content",Mp.a),n.render(),e.appendChild(n.element),e});e.insert(Fo.createAt(t),n),e.addClass(["ck-widget_selectable"],t)}(t,e),function(t,e,n,o){const i=new Ep;i.on("change:top",(e,i)=>{i.oldDescriptor&&o(t,i.oldDescriptor,i.writer),i.newDescriptor&&n(t,i.newDescriptor,i.writer)}),e.setCustomProperty("addHighlight",(t,e,n)=>i.add(e,n),t),e.setCustomProperty("removeHighlight",(t,e,n)=>i.remove(e,n),t)}(t,e,(t,e,n)=>n.addClass(o(e.classes),t),(t,e,n)=>n.removeClass(o(e.classes),t)),t;function o(t){return Array.isArray(t)?t:[t]}}function jp(t){const e=t.getCustomProperty(Vp);return e?"function"==typeof e?e():e:""}function zp(){return null}const qp=Symbol("isImage");function Up(t){const e=t.getSelectedElement();return!(!e||!function(t){return!!t.getCustomProperty(qp)&&Bp(t)}(e))}function Wp(t){return t instanceof ms&&"image"==t.name}class Hp extends Wh{init(){const t=this.editor,e=t.model.schema,n=t.t,o=t.conversion;t.editing.view.addObserver(Tp),e.register("image",{isObject:!0,isBlock:!0,allowWhere:"$block",allowAttributes:["alt","src","srcset"]}),o.for("dataDowncast").add(Vs({model:"image",view:(t,e)=>$p(e)})),o.for("editingDowncast").add(Vs({model:"image",view:(t,e)=>(function(t,e,n){return e.setCustomProperty(qp,!0,t),Lp(t,e,{label:function(){const e=t.getChild(0).getAttribute("alt");return e?`${e} ${n}`:n}})})($p(e),e,n("g"))})),o.for("downcast").add(Sp("src")).add(Sp("alt")).add(function(){return e=>{e.on("attribute:srcset:image",t)};function t(t,e,n){if(!n.consumable.consume(e.item,t.name))return;const o=n.writer,i=n.mapper.toViewElement(e.item).getChild(0);if(null===e.attributeNewValue){const t=e.attributeOldValue;t.data&&(o.removeAttribute("srcset",i),o.removeAttribute("sizes",i),t.width&&o.removeAttribute("width",i))}else{const t=e.attributeNewValue;t.data&&(o.setAttribute("srcset",t.data,i),o.setAttribute("sizes","100vw",i),t.width&&o.setAttribute("width",t.width,i))}}}()),o.for("upcast").add(aa({view:{name:"img",attributes:{src:!0}},model:(t,e)=>e.createElement("image",{src:t.getAttribute("src")})})).add(la({view:{name:"img",key:"alt"},model:"alt"})).add(la({view:{name:"img",key:"srcset"},model:{key:"srcset",value:t=>{const e={data:t.getAttribute("srcset")};return t.hasAttribute("width")&&(e.width=t.getAttribute("width")),e}}})).add(function(){return e=>{e.on("element:figure",t)};function t(t,e,n){if(!n.consumable.test(e.viewItem,{name:!0,classes:"image"}))return;const o=Array.from(e.viewItem.getChildren()).find(t=>t.is("img"));if(!o||!o.hasAttribute("src")||!n.consumable.test(o,{name:!0}))return;const i=n.convertItem(o,e.modelCursor),r=cp(i.modelRange.getItems());r&&(n.convertChildren(e.viewItem,vs.createAt(r)),e.modelRange=i.modelRange,e.modelCursor=i.modelCursor)}}())}}function $p(t){const e=t.createEmptyElement("img"),n=t.createContainerElement("figure",{class:"image"});return t.insert(Fo.createAt(n),e),n}class Kp extends Vr{constructor(t){super(t),this.domEventType="mousedown"}onDomEvent(t){this.fire(t.type,t)}}n(54);const Gp=ti("Ctrl+A");class Jp extends Wh{static get pluginName(){return"Widget"}init(){const t=this.editor.editing.view,e=t.document;this._previouslySelected=new Set,this.editor.editing.downcastDispatcher.on("selection",(t,e,n)=>{this._clearPreviouslySelectedWidgets(n.writer);const o=n.writer,i=o.document.selection,r=i.getSelectedElement();for(const t of i.getRanges())for(const e of t){const t=e.item;t.is("element")&&Bp(t)&&(o.addClass(Dp,t),this._previouslySelected.add(t),t==r&&o.setSelection(i.getRanges(),{fake:!0,label:jp(r)}))}},{priority:"low"}),t.addObserver(Kp),this.listenTo(e,"mousedown",(...t)=>this._onMousedown(...t)),this.listenTo(e,"keydown",(...t)=>this._onKeydown(...t),{priority:"high"}),this.listenTo(e,"delete",(t,e)=>{this._handleDelete("forward"==e.direction)&&(e.preventDefault(),t.stop())},{priority:"high"})}_onMousedown(t,e){const n=this.editor,o=n.editing.view,i=o.document;let r=e.target;if(function(t){for(;t;){if(t instanceof Oo&&!(t instanceof Io))return!0;t=t.parent}return!1}(r))return;if(!Bp(r)&&!(r=r.findAncestor(Bp)))return;e.preventDefault(),i.isFocused||o.focus();const s=n.editing.mapper.toModelElement(r);this._setSelectionOverElement(s)}_onKeydown(t,e){const n=e.keyCode,o=n==Xo.delete||n==Xo.arrowdown||n==Xo.arrowright;let i=!1;!function(t){return t==Xo.arrowright||t==Xo.arrowleft||t==Xo.arrowup||t==Xo.arrowdown}(n)?!function(t){return Zo(t)==Gp}(e)?n===Xo.enter&&(i=this._handleEnterKey(e.shiftKey)):i=this._selectAllNestedEditableContent()||this._selectAllContent():i=this._handleArrowKeys(o),i&&(e.preventDefault(),t.stop())}_handleDelete(t){if(this.editor.isReadOnly)return;const e=this.editor.model.document.selection;if(!e.isCollapsed)return;const n=this._getObjectElementNextToSelection(t);return n?(this.editor.model.change(t=>{let o=e.anchor.parent;for(;o.isEmpty;){const e=o;o=e.parent,t.remove(e)}this._setSelectionOverElement(n)}),!0):void 0}_handleArrowKeys(t){const e=this.editor.model,n=e.schema,o=e.document.selection,i=o.getSelectedElement();if(i&&n.isObject(i)){const i=t?o.getLastPosition():o.getFirstPosition(),r=n.getNearestSelectionRange(i,t?"forward":"backward");return r&&e.change(t=>{t.setSelection(r)}),!0}if(!o.isCollapsed)return;const r=this._getObjectElementNextToSelection(t);return r instanceof ms&&n.isObject(r)?(this._setSelectionOverElement(r),!0):void 0}_handleEnterKey(t){const e=this.editor.model,n=e.document.selection.getSelectedElement();if(n&&e.schema.isObject(n))return e.change(e=>{const o=e.createElement("paragraph");e.insert(o,n,t?"before":"after"),e.setSelection(o,"in")}),!0}_selectAllNestedEditableContent(){const t=this.editor.model,e=t.document.selection,n=t.schema.getLimitElement(e);return e.getFirstRange().root!=n&&(t.change(t=>{t.setSelection(_s.createIn(n))}),!0)}_selectAllContent(){const t=this.editor.model,e=this.editor.editing,n=e.view.document.selection.getSelectedElement();if(n&&Bp(n)){const o=e.mapper.toModelElement(n.parent);return t.change(t=>{t.setSelection(_s.createIn(o))}),!0}return!1}_setSelectionOverElement(t){this.editor.model.change(e=>{e.setSelection(_s.createOn(t))})}_getObjectElementNextToSelection(t){const e=this.editor.model,n=e.schema,o=e.document.selection,i=new Ts(o);e.modifySelection(i,{direction:t?"forward":"backward"});const r=t?i.focus.nodeBefore:i.focus.nodeAfter;return r instanceof ms&&n.isObject(r)?r:null}_clearPreviouslySelectedWidgets(t){for(const e of this._previouslySelected)t.removeClass(Dp,e);this._previouslySelected.clear()}}class Qp extends Jh{refresh(){const t=this.editor.model.document.selection.getSelectedElement();this.isEnabled=Wp(t),Wp(t)&&t.hasAttribute("alt")?this.value=t.getAttribute("alt"):this.value=!1}execute(t){const e=this.editor.model,n=e.document.selection.getSelectedElement();e.change(e=>{e.setAttribute("alt",t.newValue,n)})}}class Yp extends Wh{init(){this.editor.commands.add("imageTextAlternative",new Qp(this.editor))}}function Xp({emitter:t,activator:e,callback:n,contextElements:o}){t.listenTo(document,"mousedown",(t,{target:i})=>{if(e()){for(const t of o)if(t.contains(i))return;n()}})}class Zp extends Eh{constructor(t,e){super(t);const n=`ck-input-${w()}`;this.set("label"),this.set("value"),this.set("isReadOnly",!1),this.labelView=this._createLabelView(n),this.inputView=this._createInputView(e,n);const o=this.bindTemplate;this.setTemplate({tag:"div",attributes:{class:["ck","ck-labeled-input",o.if("isReadOnly","ck-disabled")]},children:[this.labelView,this.inputView]})}_createLabelView(t){const e=new Oh(this.locale);return e.for=t,e.bind("text").to(this,"label"),e}_createInputView(t,e){const n=new t(this.locale);return n.id=e,n.bind("value").to(this),n.bind("isReadOnly").to(this),n}select(){this.inputView.select()}focus(){this.inputView.focus()}}n(56);class tm extends Eh{constructor(t){super(t),this.set("value"),this.set("id"),this.set("placeholder"),this.set("isReadOnly",!1);const e=this.bindTemplate;this.setTemplate({tag:"input",attributes:{type:"text",class:["ck","ck-input","ck-input-text"],id:e.to("id"),placeholder:e.to("placeholder"),readonly:e.to("isReadOnly")}})}render(){super.render();const t=t=>{this.element.value=t||0===t?t:""};t(this.value),this.on("change:value",(e,n,o)=>{t(o)})}select(){this.element.select()}focus(){this.element.focus()}}function em({view:t}){t.listenTo(t.element,"submit",(e,n)=>{n.preventDefault(),t.fire("submit")},{useCapture:!0})}var nm=n(5),om=n.n(nm),im=n(6),rm=n.n(im);n(58);class sm extends Eh{constructor(t){super(t);const e=this.locale.t;this.focusTracker=new ih,this.keystrokes=new Ju,this.labeledInput=this._createLabeledInputView(),this.saveButtonView=this._createButton(e("y"),om.a,"ck-button-save"),this.saveButtonView.type="submit",this.cancelButtonView=this._createButton(e("z"),rm.a,"ck-button-cancel","cancel"),this._focusables=new ah,this._focusCycler=new Dh({focusables:this._focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}}),this.setTemplate({tag:"form",attributes:{class:["ck","ck-text-alternative-form"],tabindex:"-1"},children:[this.labeledInput,this.saveButtonView,this.cancelButtonView]})}render(){super.render(),this.keystrokes.listenTo(this.element),em({view:this}),[this.labeledInput,this.saveButtonView,this.cancelButtonView].forEach(t=>{this._focusables.add(t),this.focusTracker.add(t.element)})}_createButton(t,e,n,o){const i=new Of(this.locale);return i.set({label:t,icon:e,tooltip:!0}),i.extendTemplate({attributes:{class:n}}),o&&i.delegate("execute").to(this,o),i}_createLabeledInputView(){const t=this.locale.t,e=new Zp(this.locale,tm);return e.label=t("ah"),e.inputView.placeholder=t("ah"),e}}function am(t,e,n){const{left:o,top:i,name:r}=t(e,n);return[r,n.clone().moveTo(o,i)]}function cm({left:t,top:e}){const{scrollX:n,scrollY:o}=Di.window;return{left:t+n,top:e+o}}n(60);const lm=Fh("px"),dm=Di.document.body;class um extends Eh{constructor(t){super(t);const e=this.bindTemplate;this.set("top",0),this.set("left",0),this.set("position","arrow_nw"),this.set("isVisible",!1),this.set("withArrow",!0),this.set("className"),this.content=this.createCollection(),this.setTemplate({tag:"div",attributes:{class:["ck","ck-balloon-panel",e.to("position",t=>`ck-balloon-panel_${t}`),e.if("isVisible","ck-balloon-panel_visible"),e.if("withArrow","ck-balloon-panel_with-arrow"),e.to("className")],style:{top:e.to("top",lm),left:e.to("left",lm)}},children:this.content})}show(){this.isVisible=!0}hide(){this.isVisible=!1}attachTo(t){this.show();const e=um.defaultPositions,n=Object.assign({},{element:this.element,positions:[e.southArrowNorth,e.southArrowNorthWest,e.southArrowNorthEast,e.northArrowSouth,e.northArrowSouthWest,e.northArrowSouthEast],limiter:dm,fitInViewport:!0},t),{top:o,left:i,name:r}=um._getOptimalPosition(n);Object.assign(this,{top:o,left:i,position:r})}pin(t){this.unpin(),this._pinWhenIsVisibleCallback=(()=>{this.isVisible?this._startPinning(t):this._stopPinning()}),this._startPinning(t),this.listenTo(this,"change:isVisible",this._pinWhenIsVisibleCallback)}unpin(){this._pinWhenIsVisibleCallback&&(this._stopPinning(),this.stopListening(this,"change:isVisible",this._pinWhenIsVisibleCallback),this._pinWhenIsVisibleCallback=null,this.hide())}_startPinning(t){this.attachTo(t);const e=hm(t.target),n=t.limiter?hm(t.limiter):dm;this.listenTo(Di.document,"scroll",(o,i)=>{const r=i.target,s=e&&r.contains(e),a=n&&r.contains(n);!s&&!a&&e&&n||this.attachTo(t)},{useCapture:!0}),this.listenTo(Di.window,"resize",()=>{this.attachTo(t)})}_stopPinning(){this.stopListening(Di.document,"scroll"),this.stopListening(Di.window,"resize")}}function hm(t){return ji(t)?t:Kr(t)?t.commonAncestorContainer:"function"==typeof t?hm(t()):null}function fm(t,e){return t.top-e.height-um.arrowVerticalOffset}function pm(t){return t.bottom+um.arrowVerticalOffset}um.arrowHorizontalOffset=25,um.arrowVerticalOffset=10,um._getOptimalPosition=function({element:t,target:e,positions:n,limiter:o,fitInViewport:i}){G(e)&&(e=e()),G(o)&&(o=o());const r=function(t){for(;t&&"html"!=t.tagName.toLowerCase();){if("static"!=Di.window.getComputedStyle(t).position)return t;t=t.parentElement}return null}(t.parentElement),s=new Jr(t),a=new Jr(e);let c,l;if(o||i){const t=o&&new Jr(o).getVisible(),e=i&&new Jr(Di.window);[l,c]=function(t,e,n,o,i){let r,s,a=0,c=0;const l=n.getArea();return t.some(t=>{const[d,u]=am(t,e,n);let h,f;if(o)if(i){const t=o.getIntersection(i);h=t?t.getIntersectionArea(u):0}else h=o.getIntersectionArea(u);function p(){c=f,a=h,r=u,s=d}return i&&(f=i.getIntersectionArea(u)),i&&!o?f>c&&p():!i&&o?h>a&&p():f>c&&h>=a?p():f>=c&&h>a&&p(),h===l}),r?[s,r]:null}(n,a,s,t,e)||am(n[0],a,s)}else[l,c]=am(n[0],a,s);let{left:d,top:u}=cm(c);if(r){const t=cm(new Jr(r)),e=Gr(r);d-=t.left,u-=t.top,d+=r.scrollLeft,u+=r.scrollTop,d-=e.left,u-=e.top}return{left:d,top:u,name:l}},um.defaultPositions={northArrowSouth:(t,e)=>({top:fm(t,e),left:t.left+t.width/2-e.width/2,name:"arrow_s"}),northArrowSouthEast:(t,e)=>({top:fm(t,e),left:t.left+t.width/2-e.width+um.arrowHorizontalOffset,name:"arrow_se"}),northArrowSouthWest:(t,e)=>({top:fm(t,e),left:t.left+t.width/2-um.arrowHorizontalOffset,name:"arrow_sw"}),northWestArrowSouth:(t,e)=>({top:fm(t,e),left:t.left-e.width/2,name:"arrow_s"}),northWestArrowSouthWest:(t,e)=>({top:fm(t,e),left:t.left-um.arrowHorizontalOffset,name:"arrow_sw"}),northWestArrowSouthEast:(t,e)=>({top:fm(t,e),left:t.left-e.width+um.arrowHorizontalOffset,name:"arrow_se"}),northEastArrowSouth:(t,e)=>({top:fm(t,e),left:t.right-e.width/2,name:"arrow_s"}),northEastArrowSouthEast:(t,e)=>({top:fm(t,e),left:t.right-e.width+um.arrowHorizontalOffset,name:"arrow_se"}),northEastArrowSouthWest:(t,e)=>({top:fm(t,e),left:t.right-um.arrowHorizontalOffset,name:"arrow_sw"}),southArrowNorth:(t,e)=>({top:pm(t),left:t.left+t.width/2-e.width/2,name:"arrow_n"}),southArrowNorthEast:(t,e)=>({top:pm(t),left:t.left+t.width/2-e.width+um.arrowHorizontalOffset,name:"arrow_ne"}),southArrowNorthWest:(t,e)=>({top:pm(t),left:t.left+t.width/2-um.arrowHorizontalOffset,name:"arrow_nw"}),southWestArrowNorth:(t,e)=>({top:pm(t),left:t.left-e.width/2,name:"arrow_n"}),southWestArrowNorthWest:(t,e)=>({top:pm(t),left:t.left-um.arrowHorizontalOffset,name:"arrow_nw"}),southWestArrowNorthEast:(t,e)=>({top:pm(t),left:t.left-e.width+um.arrowHorizontalOffset,name:"arrow_ne"}),southEastArrowNorth:(t,e)=>({top:pm(t),left:t.right-e.width/2,name:"arrow_n"}),southEastArrowNorthEast:(t,e)=>({top:pm(t),left:t.right-e.width+um.arrowHorizontalOffset,name:"arrow_ne"}),southEastArrowNorthWest:(t,e)=>({top:pm(t),left:t.right-um.arrowHorizontalOffset,name:"arrow_nw"})};class mm extends Wh{static get pluginName(){return"ContextualBalloon"}init(){this.view=new um,this.positionLimiter=(()=>{const t=this.editor.editing.view,e=t.document.selection.editableElement;return e?t.domConverter.mapViewToDom(e.root):null}),this._stack=new Map,this.editor.ui.view.body.add(this.view),this.editor.ui.focusTracker.add(this.view.element)}get visibleView(){const t=this._stack.get(this.view.content.get(0));return t?t.view:null}hasView(t){return this._stack.has(t)}add(t){if(this.hasView(t.view))throw new m.b("contextualballoon-add-view-exist: Cannot add configuration of the same view twice.");this.visibleView&&this.view.content.remove(this.visibleView),this._stack.set(t.view,t),this._show(t)}remove(t){if(!this.hasView(t))throw new m.b("contextualballoon-remove-view-not-exist: Cannot remove configuration of not existing view.");if(this.visibleView===t){this.view.content.remove(t),this._stack.delete(t);const e=Array.from(this._stack.values()).pop();e?this._show(e):this.view.hide()}else this._stack.delete(t)}updatePosition(t){t&&(this._stack.get(this.visibleView).position=t),this.view.pin(this._getBalloonPosition())}_show({view:t,balloonClassName:e=""}){this.view.className=e,this.view.content.add(t),this.view.pin(this._getBalloonPosition())}_getBalloonPosition(){let t=Array.from(this._stack.values()).pop().position;return t&&!t.limiter&&(t=Object.assign({},t,{limiter:this.positionLimiter})),t}}var gm=n(23),bm=n.n(gm);function wm(t){const e=t.plugins.get("ContextualBalloon");if(Up(t.editing.view.document.selection)){const n=vm(t);e.updatePosition(n)}}function vm(t){const e=t.editing.view,n=um.defaultPositions;return{target:e.domConverter.viewToDom(e.document.selection.getSelectedElement()),positions:[n.northArrowSouth,n.northArrowSouthWest,n.northArrowSouthEast,n.southArrowNorth,n.southArrowNorthWest,n.southArrowNorthEast]}}class _m extends Wh{static get requires(){return[mm]}init(){this._createButton(),this._createForm()}_createButton(){const t=this.editor,e=t.t;t.ui.componentFactory.add("imageTextAlternative",n=>{const o=t.commands.get("imageTextAlternative"),i=new Of(n);return i.set({label:e("x"),icon:bm.a,tooltip:!0}),i.bind("isEnabled").to(o,"isEnabled"),this.listenTo(i,"execute",()=>this._showForm()),i})}_createForm(){const t=this.editor,e=t.editing.view.document;this._balloon=this.editor.plugins.get("ContextualBalloon"),this._form=new sm(t.locale),this._form.render(),this.listenTo(this._form,"submit",()=>{t.execute("imageTextAlternative",{newValue:this._form.labeledInput.inputView.element.value}),this._hideForm(!0)}),this.listenTo(this._form,"cancel",()=>{this._hideForm(!0)}),this._form.keystrokes.set("Esc",(t,e)=>{this._hideForm(!0),e()}),this.listenTo(t.ui,"update",()=>{Up(e.selection)?this._isVisible&&wm(t):this._hideForm(!0)}),Xp({emitter:this._form,activator:()=>this._isVisible,contextElements:[this._form.element],callback:()=>this._hideForm()})}_showForm(){if(this._isVisible)return;const t=this.editor,e=t.commands.get("imageTextAlternative"),n=this._form.labeledInput;this._balloon.hasView(this._form)||this._balloon.add({view:this._form,position:vm(t)}),n.value=n.inputView.element.value=e.value||"",this._form.labeledInput.select()}_hideForm(t){this._isVisible&&(this._balloon.remove(this._form),t&&this.editor.editing.view.focus())}get _isVisible(){return this._balloon.visibleView==this._form}}class km extends Wh{static get requires(){return[Yp,_m]}static get pluginName(){return"ImageTextAlternative"}}n(62);class ym extends Wh{static get requires(){return[Hp,Jp,km]}static get pluginName(){return"Image"}}class xm extends Eh{constructor(t){super(t),this.buttonView=new Of(t),this._fileInputView=new Am(t),this._fileInputView.bind("acceptedType").to(this),this._fileInputView.bind("allowMultipleFiles").to(this),this._fileInputView.delegate("done").to(this),this.setTemplate({tag:"span",attributes:{class:"ck-file-dialog-button"},children:[this.buttonView,this._fileInputView]}),this.buttonView.on("execute",()=>{this._fileInputView.open()})}focus(){this.buttonView.focus()}}class Am extends Eh{constructor(t){super(t),this.set("acceptedType"),this.set("allowMultipleFiles",!1);const e=this.bindTemplate;this.setTemplate({tag:"input",attributes:{class:["ck-hidden"],type:"file",tabindex:"-1",accept:e.to("acceptedType"),multiple:e.to("allowMultipleFiles")},on:{change:e.to(()=>{this.element&&this.element.files&&this.element.files.length&&this.fire("done",this.element.files),this.element.value=""})}})}open(){this.element.click()}}var Cm=n(24),Tm=n.n(Cm);function Sm(t){return/^image\/(jpeg|png|gif|bmp)$/.test(t.type)}function Em(t){const e=t.getSelectedElement();if(e)return vs.createAfter(e);const n=t.getSelectedBlocks().next().value;if(n){if(n.isEmpty)return vs.createAt(n);const e=vs.createAfter(n);return t.focus.isTouching(e)?e:vs.createBefore(n)}return t.focus}class Pm extends Wh{init(){const t=this.editor,e=t.t;t.ui.componentFactory.add("imageUpload",n=>{const o=new xm(n),i=t.commands.get("imageUpload");return o.set({acceptedType:"image/*",allowMultipleFiles:!0}),o.buttonView.set({label:e("q"),icon:Tm.a,tooltip:!0}),o.buttonView.bind("isEnabled").to(i),o.on("done",(e,n)=>{for(const e of Array.from(n)){const n=Em(t.model.document.selection);Sm(e)&&t.execute("imageUpload",{file:e,insertAt:n})}}),o})}}var Om=n(25),Rm=n.n(Om);n(64),n(66),n(68);class Im extends Wh{constructor(t){super(t),this.placeholder="data:image/svg+xml;utf8,"+encodeURIComponent(Rm.a)}init(){this.editor.editing.downcastDispatcher.on("attribute:uploadStatus:image",(...t)=>this.uploadStatusChange(...t))}uploadStatusChange(t,e,n){const o=this.editor,i=e.item,r=i.getAttribute("uploadId");if(!n.consumable.consume(e.item,t.name))return;const s=o.plugins.get(Lf),a=r?e.attributeNewValue:null,c=this.placeholder,l=o.editing.mapper.toViewElement(i),d=n.writer;if("reading"==a)return Vm(l,d),void Nm(c,l,d);if("uploading"==a){const t=s.loaders.get(r);return Vm(l,d),void(t?(Dm(l,d),function(t,e,n,o){const i=function(t){const e=t.createUIElement("div",{class:"ck-progress-bar"});return t.setCustomProperty(Mm,!0,e),e}(e);e.insert(Fo.createAt(t,"end"),i),n.on("change:uploadedPercent",(t,e,n)=>{o.change(t=>{t.setStyle("width",n+"%",i)})})}(l,d,t,o.editing.view)):Nm(c,l,d))}"complete"==a&&s.loaders.get(r)&&!Jo.isEdge&&function(t,e,n){const o=new ni("div",{class:"ck-image-upload-complete-icon"});e.insert(Fo.createAt(t,"end"),o),setTimeout(()=>{n.change(t=>t.remove(Vo.createOn(o)))},3e3)}(l,d,o.editing.view),function(t,e){Lm(t,e,Mm)}(l,d),Dm(l,d),function(t,e){e.removeClass("ck-appear",t)}(l,d)}}const Mm=Symbol("progress-bar"),Fm=Symbol("placeholder");function Vm(t,e){t.hasClass("ck-appear")||e.addClass("ck-appear",t)}function Nm(t,e,n){e.hasClass("ck-image-upload-placeholder")||n.addClass("ck-image-upload-placeholder",e);const o=e.getChild(0);o.getAttribute("src")!==t&&n.setAttribute("src",t,o),Bm(e,Fm)||n.insert(Fo.createAfter(o),function(t){const e=t.createUIElement("div",{class:"ck-upload-placeholder-loader"});return t.setCustomProperty(Fm,!0,e),e}(n))}function Dm(t,e){t.hasClass("ck-image-upload-placeholder")&&e.removeClass("ck-image-upload-placeholder",t),Lm(t,e,Fm)}function Bm(t,e){for(const n of t.getChildren())if(n.getCustomProperty(e))return n}function Lm(t,e,n){const o=Bm(t,n);o&&e.remove(Vo.createOn(o))}class jm extends Jh{execute(t){const e=this.editor,n=e.model.document,o=t.file,i=e.plugins.get(Lf);e.model.change(r=>{const s=i.createLoader(o);if(!s)return;const a=r.createElement("image",{uploadId:s.id});let c;c=t.insertAt?new Ts([new _s(t.insertAt)]):n.selection,e.model.insertContent(a,c),a.parent&&r.setSelection(a,"on")})}}class zm extends Wh{static get pluginName(){return"Notification"}init(){this.on("show:warning",(t,e)=>{window.alert(e.message)},{priority:"lowest"})}showSuccess(t,e={}){this._showNotification({message:t,type:"success",namespace:e.namespace,title:e.title})}showInfo(t,e={}){this._showNotification({message:t,type:"info",namespace:e.namespace,title:e.title})}showWarning(t,e={}){this._showNotification({message:t,type:"warning",namespace:e.namespace,title:e.title})}_showNotification(t){const e=`show:${t.type}`+(t.namespace?`:${t.namespace}`:"");this.fire(e,{message:t.message,type:t.type,title:t.title||""})}}class qm extends Wh{static get requires(){return[Lf,zm]}init(){const t=this.editor,e=t.model.document,n=t.model.schema,o=t.plugins.get(Lf);n.extend("image",{allowAttributes:["uploadId","uploadStatus"]}),t.commands.add("imageUpload",new jm(t)),this.listenTo(t.editing.view.document,"clipboardInput",(n,i)=>{if(function(t){return Array.from(t.types).includes("text/html")&&""!==t.getData("text/html")}(i.dataTransfer))return;let r=new Ts(i.targetRanges.map(e=>t.editing.mapper.toModelRange(e)));for(const s of i.dataTransfer.files){if(Sm(s)){const e=Em(r);t.model.change(n=>{const i=o.createLoader(s);if(!i)return;const r=n.createElement("image",{uploadId:i.id}),a=new Ts([new _s(e)]);t.model.insertContent(r,a),r.parent&&n.setSelection(r,"on")}),n.stop()}r=e.selection}}),t.editing.view.document.on("dragover",(t,e)=>{e.preventDefault()}),e.on("change",()=>{const t=e.differ.getChanges({includeChangesInGraveyard:!0});for(const e of t)if("insert"==e.type&&"image"==e.name){const t=e.position.nodeAfter,n="$graveyard"==e.position.root.rootName,i=t.getAttribute("uploadId");if(!i)continue;const r=o.loaders.get(i);if(!r)continue;n?r.abort():"idle"==r.status&&this._load(r,t)}})}_load(t,e){const n=this.editor,o=n.model,i=n.locale.t,r=n.plugins.get(Lf),s=n.plugins.get(zm);return o.enqueueChange("transparent",t=>{t.setAttribute("uploadStatus","reading",e)}),t.read().then(i=>{const r=n.editing.mapper.toViewElement(e).getChild(0),s=t.upload();return n.editing.view.change(t=>{t.setAttribute("src",i,r)}),o.enqueueChange("transparent",t=>{t.setAttribute("uploadStatus","uploading",e)}),s}).then(t=>{o.enqueueChange("transparent",n=>{n.setAttributes({uploadStatus:"complete",src:t.default},e);let o=0;const i=Object.keys(t).filter(t=>{const e=parseInt(t,10);if(!isNaN(e))return o=Math.max(o,e),!0}).map(e=>`${t[e]} ${e}w`).join(", ");""!=i&&n.setAttribute("srcset",{data:i,width:o},e)}),a()}).catch(n=>{if("error"!==t.status&&"aborted"!==t.status)throw n;"error"==t.status&&s.showWarning(n,{title:i("r"),namespace:"upload"}),a(),o.enqueueChange("transparent",t=>{t.remove(e)})});function a(){o.enqueueChange("transparent",t=>{t.removeAttribute("uploadId",e),t.removeAttribute("uploadStatus",e)}),r.destroyLoader(t)}}}class Um extends Wh{static get pluginName(){return"ImageUpload"}static get requires(){return[qm,Pm,Im]}}class Wm extends Jh{refresh(){const t=this.editor.model,e=cp(t.document.selection.getSelectedBlocks());this.value=!!e&&e.is("paragraph"),this.isEnabled=!!e&&Hm(e,t.schema)}execute(t={}){const e=this.editor.model,n=e.document;e.change(o=>{const i=(t.selection||n.selection).getSelectedBlocks();for(const t of i)!t.is("paragraph")&&Hm(t,e.schema)&&o.rename(t,"paragraph")})}}function Hm(t,e){return e.checkChild(t.parent,"paragraph")&&!e.isObject(t)}class $m extends Wh{static get pluginName(){return"Paragraph"}init(){const t=this.editor,e=t.model,n=t.data;t.commands.add("paragraph",new Wm(t)),e.schema.register("paragraph",{inheritAllFrom:"$block"}),t.conversion.elementToElement({model:"paragraph",view:"p"}),n.upcastDispatcher.on("element",(t,e,n)=>{if(n.consumable.test(e.viewItem,{name:e.viewItem.name}))if($m.paragraphLikeElements.has(e.viewItem.name)){if(e.viewItem.isEmpty)return;const t=n.writer.createElement("paragraph"),o=n.splitToAllowedParent(t,e.modelCursor);if(!o)return;n.writer.insert(t,o.position);const{modelRange:i}=n.convertChildren(e.viewItem,vs.createAt(t));e.modelRange=new _s(vs.createBefore(t),i.end),e.modelCursor=e.modelRange.end}else Gm(e.viewItem,e.modelCursor,n.schema)&&(e=Object.assign(e,Km(e.viewItem,e.modelCursor,n)))},{priority:"low"}),n.upcastDispatcher.on("text",(t,e,n)=>{e.modelRange||Gm(e.viewItem,e.modelCursor,n.schema)&&(e=Object.assign(e,Km(e.viewItem,e.modelCursor,n)))},{priority:"lowest"}),e.document.registerPostFixer(t=>this._autoparagraphEmptyRoots(t)),t.on("dataReady",()=>{e.enqueueChange("transparent",t=>this._autoparagraphEmptyRoots(t))},{priority:"lowest"})}_autoparagraphEmptyRoots(t){const e=this.editor.model;for(const n of e.document.getRootNames()){const o=e.document.getRoot(n);if(o.isEmpty&&"$graveyard"!=o.rootName&&e.schema.checkChild(o,"paragraph"))return t.insertElement("paragraph",o),!0}}}function Km(t,e,n){const o=n.writer.createElement("paragraph");return n.writer.insert(o,e),n.convertItem(t,vs.createAt(o))}function Gm(t,e,n){const o=new Js(e);return!!n.checkChild(o,"paragraph")&&!!n.checkChild(o.push("paragraph"),t)}$m.paragraphLikeElements=new Set(["blockquote","dd","div","dt","h1","h2","h3","h4","h5","h6","li","p","td"]);class Jm extends Jh{constructor(t,e){super(t),this.modelElements=e}refresh(){const t=cp(this.editor.model.document.selection.getSelectedBlocks());this.value=!!t&&this.modelElements.includes(t.name)&&t.name,this.isEnabled=!!t&&this.modelElements.some(e=>Qm(t,e,this.editor.model.schema))}execute(t){const e=this.editor.model,n=e.document,o=t.value;e.change(t=>{const i=Array.from(n.selection.getSelectedBlocks()).filter(t=>Qm(t,o,e.schema));for(const e of i)e.is(o)||t.rename(e,o)})}}function Qm(t,e,n){return n.checkChild(t.parent,e)&&!n.isObject(t)}const Ym="paragraph";class Xm extends Wh{constructor(t){super(t),t.config.define("heading",{options:[{model:"paragraph",title:"Paragraph",class:"ck-heading_paragraph"},{model:"heading1",view:"h2",title:"Heading 1",class:"ck-heading_heading1"},{model:"heading2",view:"h3",title:"Heading 2",class:"ck-heading_heading2"},{model:"heading3",view:"h4",title:"Heading 3",class:"ck-heading_heading3"}]})}static get requires(){return[$m]}init(){const t=this.editor,e=t.config.get("heading.options"),n=[];for(const o of e)o.model!==Ym&&(t.model.schema.register(o.model,{inheritAllFrom:"$block"}),t.conversion.elementToElement(o),n.push(o.model));t.commands.add("heading",new Jm(t,n))}afterInit(){const t=this.editor,e=t.commands.get("enter"),n=t.config.get("heading.options");e&&this.listenTo(e,"afterExecute",(e,o)=>{const i=t.model.document.selection.getFirstPosition().parent;n.some(t=>i.is(t.model))&&!i.is(Ym)&&0===i.childCount&&o.writer.rename(i,Ym)})}}class Zm{constructor(t,e){e&&wo(this,e),t&&this.set(t)}}P(Zm,xo);class tg extends Eh{constructor(t){super(t);const e=this.bindTemplate;this.set("isVisible",!1),this.children=this.createCollection(),this.setTemplate({tag:"div",attributes:{class:["ck","ck-reset","ck-dropdown__panel",e.if("isVisible","ck-dropdown__panel-visible")]},children:this.children,on:{selectstart:e.to(t=>t.preventDefault())}})}focus(){this.children.length&&this.children.first.focus()}focusLast(){if(this.children.length){const t=this.children.last;"function"==typeof t.focusLast?t.focusLast():t.focus()}}}n(70);class eg extends Eh{constructor(t,e,n){super(t);const o=this.bindTemplate;this.buttonView=e,this.panelView=n,this.set("isOpen",!1),this.set("isEnabled",!0),this.focusTracker=new ih,this.keystrokes=new Ju,this.setTemplate({tag:"div",attributes:{class:["ck","ck-dropdown",o.if("isEnabled","ck-disabled",t=>!t)]},children:[e,n]}),e.extendTemplate({attributes:{class:["ck-dropdown__button"]}})}render(){super.render(),this.listenTo(this.buttonView,"open",()=>{this.isOpen=!this.isOpen}),this.panelView.bind("isVisible").to(this,"isOpen"),this.keystrokes.listenTo(this.element),this.focusTracker.add(this.element);const t=(t,e)=>{this.isOpen&&(this.buttonView.focus(),this.isOpen=!1,e())};this.keystrokes.set("arrowdown",(t,e)=>{this.buttonView.isEnabled&&!this.isOpen&&(this.isOpen=!0,e())}),this.keystrokes.set("arrowright",(t,e)=>{this.isOpen&&e()}),this.keystrokes.set("arrowleft",t),this.keystrokes.set("esc",t)}focus(){this.buttonView.focus()}}var ng=n(26),og=n.n(ng);class ig extends Of{constructor(t){super(t),this.arrowView=this._createArrowView(),this.extendTemplate({attributes:{"aria-haspopup":!0}}),this.delegate("execute").to(this,"open")}render(){super.render(),this.children.add(this.arrowView)}_createArrowView(){const t=new Ef;return t.content=og.a,t.extendTemplate({attributes:{class:"ck-dropdown__arrow"}}),t}}n(72);class rg extends Eh{constructor(){super(),this.items=this.createCollection(),this.focusTracker=new ih,this.keystrokes=new Ju,this._focusCycler=new Dh({focusables:this.items,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"arrowup",focusNext:"arrowdown"}}),this.setTemplate({tag:"ul",attributes:{class:["ck","ck-reset","ck-list"]},children:this.items})}render(){super.render();for(const t of this.items)this.focusTracker.add(t.element);this.items.on("add",(t,e)=>{this.focusTracker.add(e.element)}),this.items.on("remove",(t,e)=>{this.focusTracker.remove(e.element)}),this.keystrokes.listenTo(this.element)}focus(){this._focusCycler.focusFirst()}focusLast(){this._focusCycler.focusLast()}}class sg extends Eh{constructor(t){super(t),this.children=this.createCollection(),this.setTemplate({tag:"li",attributes:{class:["ck","ck-list__item"]},children:this.children})}focus(){this.children.first.focus()}}class ag extends Eh{constructor(t){super(t),this.setTemplate({tag:"li",attributes:{class:["ck","ck-list__separator"]}})}}n(74);class cg extends Of{constructor(t){super(t),this.toggleSwitchView=this._createToggleView(),this.extendTemplate({attributes:{class:"ck-switchbutton"}})}render(){super.render(),this.children.add(this.toggleSwitchView)}_createToggleView(){const t=new Eh;return t.setTemplate({tag:"span",attributes:{class:["ck","ck-button__toggle"]},children:[{tag:"span",attributes:{class:["ck","ck-button__toggle__inner"]}}]}),t}}n(76),n(78);function lg(t,e=ig){const n=new e(t),o=new tg(t),i=new eg(t,n,o);return n.bind("isEnabled").to(i),n instanceof ig?n.bind("isOn").to(i,"isOpen"):n.arrowView.bind("isOn").to(i,"isOpen"),function(t){(function(t){t.on("render",()=>{Xp({emitter:t,activator:()=>t.isOpen,callback:()=>{t.isOpen=!1},contextElements:[t.element]})})})(t),function(t){t.on("execute",e=>{e.source instanceof cg||(t.isOpen=!1)})}(t),function(t){t.keystrokes.set("arrowdown",(e,n)=>{t.isOpen&&(t.panelView.focus(),n())}),t.keystrokes.set("arrowup",(e,n)=>{t.isOpen&&(t.panelView.focusLast(),n())})}(t)}(i),i}n(14);class dg extends Wh{init(){const t=this.editor,e=t.t,n=function(t){const e=t.t,n={Paragraph:e("t"),"Heading 1":e("u"),"Heading 2":e("v"),"Heading 3":e("w")};return t.config.get("heading.options").map(t=>{const e=n[t.title];return e&&e!=t.title&&(t=Object.assign({},t,{title:e})),t})}(t),o=e("d"),i=e("e");t.ui.componentFactory.add("heading",e=>{const r={},s=new jo,a=t.commands.get("heading"),c=t.commands.get("paragraph"),l=[a];for(const t of n){const e={type:"button",model:new Zm({label:t.title,class:t.class,withText:!0})};"paragraph"===t.model?(e.model.bind("isOn").to(c,"value"),e.model.set("commandName","paragraph"),l.push(c)):(e.model.bind("isOn").to(a,"value",e=>e===t.model),e.model.set({commandName:"heading",commandValue:t.model})),s.add(e),r[t.model]=t.title}const d=lg(e);return function(t,e){const n=t.locale,o=t.listView=new rg(n);o.items.bindTo(e).using(({type:t,model:e})=>{if("separator"===t)return new ag(n);if("button"===t||"switchbutton"===t){const o=new sg(n);let i;return(i="button"===t?new Of(n):new cg(n)).bind(...Object.keys(e)).to(e),i.delegate("execute").to(o),o.children.add(i),o}}),t.panelView.children.add(o),o.items.delegate("execute").to(t)}(d,s),d.buttonView.set({isOn:!1,withText:!0,tooltip:i}),d.extendTemplate({attributes:{class:["ck-heading-dropdown"]}}),d.bind("isEnabled").toMany(l,"isEnabled",(...t)=>t.some(t=>t)),d.buttonView.bind("label").to(a,"value",c,"value",(t,e)=>{const n=t||e&&"paragraph";return r[n]?r[n]:o}),this.listenTo(d,"execute",e=>{t.execute(e.source.commandName,e.source.commandValue?{value:e.source.commandValue}:void 0),t.editing.view.focus()}),d})}}n(81);const ug=new WeakMap;function hg(t,e,n,o){const i=t.document;ug.has(i)||(ug.set(i,new Map),i.registerPostFixer(t=>(function(t,e){const n=ug.get(t);let o=!1;for(const[t,i]of n)fg(e,t,i)&&(o=!0);return o})(i,t))),ug.get(i).set(e,{placeholderText:n,checkFunction:o}),t.render()}function fg(t,e,n){const o=e.document,i=n.placeholderText;let r=!1;if(!o)return!1;e.getAttribute("data-placeholder")!==i&&(t.setAttribute("data-placeholder",i,e),r=!0);const s=o.selection.anchor,a=n.checkFunction;if(a&&!a())return e.hasClass("ck-placeholder")&&(t.removeClass("ck-placeholder",e),r=!0),r;const c=!Array.from(e.getChildren()).some(t=>!t.is("uiElement"));return!o.isFocused&&c?(e.hasClass("ck-placeholder")||(t.addClass("ck-placeholder",e),r=!0),r):(c&&s&&s.parent!==e?e.hasClass("ck-placeholder")||(t.addClass("ck-placeholder",e),r=!0):e.hasClass("ck-placeholder")&&(t.removeClass("ck-placeholder",e),r=!0),r)}const pg=Symbol("imageCaption");function mg(t,e){return n=>{const o=n.createEditableElement("figcaption");return n.setCustomProperty(pg,!0,o),hg(t,o,e),function(t,e){return e.addClass(["ck-editor__editable","ck-editor__nested-editable"],t),Jo.isEdge||(e.setAttribute("contenteditable",t.isReadOnly?"false":"true",t),t.on("change:isReadOnly",(n,o,i)=>{e.setAttribute("contenteditable",i?"false":"true",t)})),t.on("change:isFocused",(n,o,i)=>{i?e.addClass("ck-editor__nested-editable_focused",t):e.removeClass("ck-editor__nested-editable_focused",t)}),t}(o,n)}}function gg(t){for(const e of t.getChildren())if(e instanceof ms&&"caption"==e.name)return e;return null}function bg(t){const e=t.parent;return"figcaption"==t.name&&e&&"figure"==e.name&&e.hasClass("image")?{name:!0}:null}class wg extends Wh{init(){const t=this.editor,e=t.editing.view,n=t.model.schema,o=t.data,i=t.editing,r=t.t;n.register("caption",{allowIn:"image",allowContentOf:"$block",isLimit:!0}),t.model.document.registerPostFixer(t=>this._insertMissingModelCaptionElement(t)),t.conversion.for("upcast").add(aa({view:bg,model:"caption"}));o.downcastDispatcher.on("insert:caption",vg(t=>t.createContainerElement("figcaption"),!1));const s=mg(e,r("h"));i.downcastDispatcher.on("insert:caption",vg(s)),i.downcastDispatcher.on("insert",this._fixCaptionVisibility(t=>t.item),{priority:"high"}),i.downcastDispatcher.on("remove",this._fixCaptionVisibility(t=>t.position.parent),{priority:"high"}),e.document.registerPostFixer(t=>this._updateCaptionVisibility(t))}_updateCaptionVisibility(t){const e=this.editor.editing.mapper,n=this._lastSelectedCaption;let o;const i=this.editor.model.document.selection,r=i.getSelectedElement();if(r&&r.is("image")){const t=gg(r);o=e.toViewElement(t)}const s=_g(i.getFirstPosition().parent);if(s&&(o=e.toViewElement(s)),o)return n?n===o?yg(o,t):(kg(n,t),this._lastSelectedCaption=o,yg(o,t)):(this._lastSelectedCaption=o,yg(o,t));if(n){const e=kg(n,t);return this._lastSelectedCaption=null,e}return!1}_fixCaptionVisibility(t){return(e,n,o)=>{const i=_g(t(n)),r=this.editor.editing.mapper,s=o.writer;if(i){const t=r.toViewElement(i);t&&(i.childCount?s.removeClass("ck-hidden",t):s.addClass("ck-hidden",t))}}}_insertMissingModelCaptionElement(t){const e=this.editor.model.document.differ.getChanges();for(const n of e)if("insert"==n.type&&"image"==n.name){const e=n.position.nodeAfter;if(!gg(e))return t.appendElement("caption",e),!0}}}function vg(t,e=!0){return(n,o,i)=>{const r=o.item;if((r.childCount||e)&&Wp(r.parent)){if(!i.consumable.consume(o.item,"insert"))return;const e=i.mapper.toViewElement(o.range.start.parent),n=t(i.writer),s=i.writer;r.childCount||s.addClass("ck-hidden",n),function(t,e,n,o){const i=Fo.createAt(n,"end");o.writer.insert(i,t),o.mapper.bindElements(e,t)}(n,o.item,e,i)}}}function _g(t){const e=t.getAncestors({includeSelf:!0}).find(t=>"caption"==t.name);return e&&e.parent&&"image"==e.parent.name?e:null}function kg(t,e){return!t.childCount&&!t.hasClass("ck-hidden")&&(e.addClass("ck-hidden",t),!0)}function yg(t,e){return!!t.hasClass("ck-hidden")&&(e.removeClass("ck-hidden",t),!0)}n(83);class xg extends Jh{constructor(t,e){super(t),this._defaultStyle=!1,this.styles=e.reduce((t,e)=>(t[e.name]=e,e.isDefault&&(this._defaultStyle=e.name),t),{})}refresh(){const t=this.editor.model.document.selection.getSelectedElement();if(this.isEnabled=Wp(t),t)if(t.hasAttribute("imageStyle")){const e=t.getAttribute("imageStyle");this.value=!!this.styles[e]&&e}else this.value=this._defaultStyle;else this.value=!1}execute(t){const e=t.value,n=this.editor.model,o=n.document.selection.getSelectedElement();n.change(t=>{this.styles[e].isDefault?t.removeAttribute("imageStyle",o):t.setAttribute("imageStyle",e,o)})}}function Ag(t,e){for(const n of e)if(n.name===t)return n}var Cg=n(9),Tg=n.n(Cg),Sg=n(10),Eg=n.n(Sg),Pg=n(11),Og=n.n(Pg),Rg=n(7),Ig=n.n(Rg);const Mg={full:{name:"full",title:"Full size image",icon:Tg.a,isDefault:!0},side:{name:"side",title:"Side image",icon:Ig.a,className:"image-style-side"},alignLeft:{name:"alignLeft",title:"Left aligned image",icon:Eg.a,className:"image-style-align-left"},alignCenter:{name:"alignCenter",title:"Centered image",icon:Og.a,className:"image-style-align-center"},alignRight:{name:"alignRight",title:"Right aligned image",icon:Ig.a,className:"image-style-align-right"}},Fg={full:Tg.a,left:Eg.a,right:Ig.a,center:Og.a};function Vg(t=[]){return t.map(Ng).map(t=>Object.assign({},t))}function Ng(t){if("string"==typeof t){const e=t;Mg[e]?t=Object.assign({},Mg[e]):(Ur.a.warn("image-style-not-found: There is no such image style of given name.",{name:e}),t={name:e})}else if(Mg[t.name]){const e=Mg[t.name],n=Object.assign({},t);for(const o in e)t.hasOwnProperty(o)||(n[o]=e[o]);t=n}return"string"==typeof t.icon&&Fg[t.icon]&&(t.icon=Fg[t.icon]),t}class Dg extends Wh{static get requires(){return[Hp]}static get pluginName(){return"ImageStyleEditing"}init(){const t=this.editor,e=t.model.schema,n=t.data,o=t.editing;t.config.define("image.styles",["full","side"]);const i=Vg(t.config.get("image.styles"));e.extend("image",{allowAttributes:"imageStyle"});const r=function(t){return(e,n,o)=>{if(!o.consumable.consume(n.item,e.name))return;const i=Ag(n.attributeNewValue,t),r=Ag(n.attributeOldValue,t),s=o.mapper.toViewElement(n.item),a=o.writer;r&&a.removeClass(r.className,s),i&&a.addClass(i.className,s)}}(i);o.downcastDispatcher.on("attribute:imageStyle:image",r),n.downcastDispatcher.on("attribute:imageStyle:image",r),n.upcastDispatcher.on("element:figure",function(t){const e=t.filter(t=>!t.isDefault);return(t,n,o)=>{if(!n.modelRange)return;const i=n.viewItem,r=cp(n.modelRange.getItems());if(o.schema.checkAttribute(r,"imageStyle"))for(const t of e)o.consumable.consume(i,{classes:t.className})&&o.writer.setAttribute("imageStyle",t.name,r)}}(i),{priority:"low"}),t.commands.add("imageStyle",new xg(t,i))}}n(85);class Bg extends Wh{get localizedDefaultStylesTitles(){const t=this.editor.t;return{"Full size image":t("i"),"Side image":t("j"),"Left aligned image":t("k"),"Centered image":t("l"),"Right aligned image":t("m")}}init(){const t=function(t,e){for(const n of t)e[n.title]&&(n.title=e[n.title]);return t}(Vg(this.editor.config.get("image.styles")),this.localizedDefaultStylesTitles);for(const e of t)this._createButton(e)}_createButton(t){const e=this.editor,n=`imageStyle:${t.name}`;e.ui.componentFactory.add(n,n=>{const o=e.commands.get("imageStyle"),i=new Of(n);return i.set({label:t.title,icon:t.icon,tooltip:!0}),i.bind("isEnabled").to(o,"isEnabled"),i.bind("isOn").to(o,"value",e=>e===t.name),this.listenTo(i,"execute",()=>e.execute("imageStyle",{value:t.name})),i})}}const Lg="ck-toolbar-container";function jg(t,e){return new _s(zg(t,e,!0),zg(t,e,!1))}function zg(t,e,n){let o=t.textNode||(n?t.nodeBefore:t.nodeAfter),i=null;for(;o&&o.getAttribute("linkHref")==e;)i=o,o=n?o.previousSibling:o.nextSibling;return i?vs.createAt(i,n?"before":"after"):t}class qg extends Jh{refresh(){const t=this.editor.model,e=t.document;this.value=e.selection.getAttribute("linkHref"),this.isEnabled=t.schema.checkAttributeInSelection(e.selection,"linkHref")}execute(t){const e=this.editor.model,n=e.document.selection;e.change(o=>{if(n.isCollapsed){const e=n.getFirstPosition();if(n.hasAttribute("linkHref")){const e=jg(n.getFirstPosition(),n.getAttribute("linkHref"));o.setAttribute("linkHref",t,e),o.setSelection(e)}else if(""!==t){const i=ds(n.getAttributes());i.set("linkHref",t);const r=o.createText(t,i);o.insert(r,e),o.setSelection(_s.createOn(r))}}else{const i=e.schema.getValidRanges(n.getRanges(),"linkHref");for(const e of i)o.setAttribute("linkHref",t,e)}})}}class Ug extends Jh{refresh(){this.isEnabled=this.editor.model.document.selection.hasAttribute("linkHref")}execute(){const t=this.editor.model,e=t.document.selection;t.change(t=>{const n=e.isCollapsed?[jg(e.getFirstPosition(),e.getAttribute("linkHref"))]:e.getRanges();for(const e of n)t.removeAttribute("linkHref",e)})}}const Wg=Symbol("linkElement"),Hg=/[\u0000-\u0020\u00A0\u1680\u180E\u2000-\u2029\u205f\u3000]/g,$g=/^(?:(?:https?|ftps?|mailto):|[^a-z]|[a-z+.-]+(?:[^a-z+.:-]|$))/i;function Kg(t,e){const n=e.createAttributeElement("a",{href:t},{priority:5});return e.setCustomProperty(Wg,!0,n),n}function Gg(t){return function(t){return t.replace(Hg,"").match($g)}(t=String(t))?t:"#"}class Jg{constructor(t,e,n){this.model=t,this.attribute=n,this._modelSelection=t.document.selection,this._overrideUid=null,this._isNextGravityRestorationSkipped=!1,e.listenTo(this._modelSelection,"change:range",(t,e)=>{this._isNextGravityRestorationSkipped?this._isNextGravityRestorationSkipped=!1:this._isGravityOverridden&&(!e.directChange&&Qg(this._modelSelection.getFirstPosition(),n)||this._restoreGravity())})}handleForwardMovement(t,e){const n=this.attribute;if(!(this._isGravityOverridden||t.isAtStart&&this._hasSelectionAttribute))return Zg(t,n)&&this._hasSelectionAttribute?(this._preventCaretMovement(e),this._removeSelectionAttribute(),!0):Yg(t,n)?(this._preventCaretMovement(e),this._overrideGravity(),!0):Xg(t,n)&&this._hasSelectionAttribute?(this._preventCaretMovement(e),this._overrideGravity(),!0):void 0}handleBackwardMovement(t,e){const n=this.attribute;return this._isGravityOverridden?Zg(t,n)&&this._hasSelectionAttribute?(this._preventCaretMovement(e),this._restoreGravity(),this._removeSelectionAttribute(),!0):(this._preventCaretMovement(e),this._restoreGravity(),t.isAtStart&&this._removeSelectionAttribute(),!0):Zg(t,n)&&!this._hasSelectionAttribute?(this._preventCaretMovement(e),this._setSelectionAttributeFromTheNodeBefore(t),!0):t.isAtEnd&&Xg(t,n)?this._hasSelectionAttribute?void(tb(t,n)&&(this._skipNextAutomaticGravityRestoration(),this._overrideGravity())):(this._preventCaretMovement(e),this._setSelectionAttributeFromTheNodeBefore(t),!0):t.isAtStart?this._hasSelectionAttribute?(this._removeSelectionAttribute(),this._preventCaretMovement(e),!0):void 0:void(tb(t,n)&&(this._skipNextAutomaticGravityRestoration(),this._overrideGravity()))}get _isGravityOverridden(){return!!this._overrideUid}get _hasSelectionAttribute(){return this._modelSelection.hasAttribute(this.attribute)}_overrideGravity(){this._overrideUid=this.model.change(t=>t.overrideSelectionGravity())}_restoreGravity(){this.model.change(t=>{t.restoreSelectionGravity(this._overrideUid),this._overrideUid=null})}_preventCaretMovement(t){t.preventDefault()}_removeSelectionAttribute(){this.model.change(t=>{t.removeSelectionAttribute(this.attribute)})}_setSelectionAttributeFromTheNodeBefore(t){const e=this.attribute;this.model.change(n=>{n.setSelectionAttribute(this.attribute,t.nodeBefore.getAttribute(e))})}_skipNextAutomaticGravityRestoration(){this._isNextGravityRestorationSkipped=!0}}function Qg(t,e){return Yg(t,e)||Xg(t,e)}function Yg(t,e){const{nodeBefore:n,nodeAfter:o}=t,i=!!n&&n.hasAttribute(e);return!!o&&o.hasAttribute(e)&&(!i||n.getAttribute(e)!==o.getAttribute(e))}function Xg(t,e){const{nodeBefore:n,nodeAfter:o}=t,i=!!n&&n.hasAttribute(e),r=!!o&&o.hasAttribute(e);return i&&(!r||n.getAttribute(e)!==o.getAttribute(e))}function Zg(t,e){const{nodeBefore:n,nodeAfter:o}=t,i=!!n&&n.hasAttribute(e);if(!!o&&o.hasAttribute(e)&&i)return o.getAttribute(e)!==n.getAttribute(e)}function tb(t,e){return Qg(t.getShiftedBy(-1),e)}n(87);const eb="ck-link_selected";class nb extends Wh{init(){const t=this.editor;t.model.schema.extend("$text",{allowAttributes:"linkHref"}),t.conversion.for("dataDowncast").add(Ns({model:"linkHref",view:Kg})),t.conversion.for("editingDowncast").add(Ns({model:"linkHref",view:(t,e)=>Kg(Gg(t),e)})),t.conversion.for("upcast").add(ca({view:{name:"a",attributes:{href:!0}},model:{key:"linkHref",value:t=>t.getAttribute("href")}})),t.commands.add("link",new qg(t)),t.commands.add("unlink",new Ug(t)),function(t,e,n,o){const i=new Jg(e,n,o),r=e.document.selection;n.listenTo(t.document,"keydown",(t,e)=>{if(!r.isCollapsed)return;if(e.shiftKey||e.altKey||e.ctrlKey)return;const n=e.keyCode==Xo.arrowright,o=e.keyCode==Xo.arrowleft;if(!n&&!o)return;const s=r.getFirstPosition();let a;(a=n?i.handleForwardMovement(s,e):i.handleBackwardMovement(s,e))&&t.stop()},{priority:v.get("high")+1})}(t.editing.view,t.model,this,"linkHref"),this._setupLinkHighlight()}_setupLinkHighlight(){const t=this.editor,e=t.editing.view,n=new Set;e.document.registerPostFixer(e=>{const o=t.model.document.selection;if(o.hasAttribute("linkHref")){const i=jg(o.getFirstPosition(),o.getAttribute("linkHref")),r=t.editing.mapper.toViewRange(i);for(const t of r.getItems())t.is("a")&&(e.addClass(eb,t),n.add(t))}}),t.conversion.for("editingDowncast").add(t=>{function o(){e.change(t=>{for(const e of n.values())t.removeClass(eb,e),n.delete(e)})}t.on("insert",o,{priority:"highest"}),t.on("remove",o,{priority:"highest"}),t.on("attribute",o,{priority:"highest"}),t.on("selection",o,{priority:"highest"})})}}class ob extends Vr{constructor(t){super(t),this.domEventType="click"}onDomEvent(t){this.fire(t.type,t)}}n(89);class ib extends Eh{constructor(t){super(t);const e=t.t;this.focusTracker=new ih,this.keystrokes=new Ju,this.urlInputView=this._createUrlInput(),this.saveButtonView=this._createButton(e("y"),om.a,"ck-button-save"),this.saveButtonView.type="submit",this.cancelButtonView=this._createButton(e("z"),rm.a,"ck-button-cancel","cancel"),this._focusables=new ah,this._focusCycler=new Dh({focusables:this._focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}}),this.setTemplate({tag:"form",attributes:{class:["ck","ck-link-form"],tabindex:"-1"},children:[this.urlInputView,this.saveButtonView,this.cancelButtonView]})}render(){super.render(),em({view:this}),[this.urlInputView,this.saveButtonView,this.cancelButtonView].forEach(t=>{this._focusables.add(t),this.focusTracker.add(t.element)}),this.keystrokes.listenTo(this.element)}focus(){this._focusCycler.focusFirst()}_createUrlInput(){const t=this.locale.t,e=new Zp(this.locale,tm);return e.label=t("aa"),e.inputView.placeholder="https://example.com",e}_createButton(t,e,n,o){const i=new Of(this.locale);return i.set({label:t,icon:e,tooltip:!0}),i.extendTemplate({attributes:{class:n}}),o&&i.delegate("execute").to(this,o),i}}var rb=n(27),sb=n.n(rb),ab=n(28),cb=n.n(ab);n(91);class lb extends Eh{constructor(t){super(t);const e=t.t;this.focusTracker=new ih,this.keystrokes=new Ju,this.previewButtonView=this._createPreviewButton(),this.unlinkButtonView=this._createButton(e("ab"),sb.a,"unlink"),this.editButtonView=this._createButton(e("ac"),cb.a,"edit"),this.set("href"),this._focusables=new ah,this._focusCycler=new Dh({focusables:this._focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:"shift + tab",focusNext:"tab"}}),this.setTemplate({tag:"div",attributes:{class:["ck","ck-link-actions"],tabindex:"-1"},children:[this.previewButtonView,this.editButtonView,this.unlinkButtonView]})}render(){super.render(),[this.previewButtonView,this.editButtonView,this.unlinkButtonView].forEach(t=>{this._focusables.add(t),this.focusTracker.add(t.element)}),this.keystrokes.listenTo(this.element)}focus(){this._focusCycler.focusFirst()}_createButton(t,e,n){const o=new Of(this.locale);return o.set({label:t,icon:e,tooltip:!0}),o.delegate("execute").to(this,n),o}_createPreviewButton(){const t=new Of(this.locale),e=this.bindTemplate,n=this.t;return t.set({withText:!0,tooltip:n("ad")}),t.extendTemplate({attributes:{class:["ck","ck-link-actions__preview"],href:e.to("href",t=>t&&Gg(t)),target:"_blank"}}),t.bind("label").to(this,"href",t=>t||n("ae")),t.bind("isEnabled").to(this,"href",t=>!!t),t.template.tag="a",t.template.eventListeners={},t}}var db=n(29),ub=n.n(db);const hb="Ctrl+K";class fb extends Wh{static get requires(){return[mm]}init(){const t=this.editor;t.editing.view.addObserver(ob),this.actionsView=this._createActionsView(),this.formView=this._createFormView(),this._balloon=t.plugins.get(mm),this._createToolbarLinkButton(),this._enableUserBalloonInteractions()}_createActionsView(){const t=this.editor,e=new lb(t.locale),n=t.commands.get("link"),o=t.commands.get("unlink");return e.bind("href").to(n,"value"),e.editButtonView.bind("isEnabled").to(n),e.unlinkButtonView.bind("isEnabled").to(o),this.listenTo(e,"edit",()=>{this._addFormView()}),this.listenTo(e,"unlink",()=>{t.execute("unlink"),this._hideUI()}),e.keystrokes.set("Esc",(t,e)=>{this._hideUI(),e()}),e.keystrokes.set(hb,(t,e)=>{this._addFormView(),e()}),e}_createFormView(){const t=this.editor,e=new ib(t.locale),n=t.commands.get("link");return e.urlInputView.bind("value").to(n,"value"),e.urlInputView.bind("isReadOnly").to(n,"isEnabled",t=>!t),e.saveButtonView.bind("isEnabled").to(n),this.listenTo(e,"submit",()=>{t.execute("link",e.urlInputView.inputView.element.value),this._removeFormView()}),this.listenTo(e,"cancel",()=>{this._removeFormView()}),e.keystrokes.set("Esc",(t,e)=>{this._removeFormView(),e()}),e}_createToolbarLinkButton(){const t=this.editor,e=t.commands.get("link"),n=t.t;t.keystrokes.set(hb,(t,n)=>{n(),e.isEnabled&&this._showUI()}),t.ui.componentFactory.add("link",t=>{const o=new Of(t);return o.isEnabled=!0,o.label=n("p"),o.icon=ub.a,o.keystroke=hb,o.tooltip=!0,o.bind("isEnabled").to(e,"isEnabled"),this.listenTo(o,"execute",()=>this._showUI()),o})}_enableUserBalloonInteractions(){const t=this.editor.editing.view.document;this.listenTo(t,"click",()=>{this._getSelectedLinkElement()&&this._showUI()}),this.editor.keystrokes.set("Tab",(t,e)=>{this._areActionsVisible&&!this.actionsView.focusTracker.isFocused&&(this.actionsView.focus(),e())},{priority:"high"}),this.editor.keystrokes.set("Esc",(t,e)=>{this._isUIVisible&&(this._hideUI(),e())}),Xp({emitter:this.formView,activator:()=>this._isUIVisible,contextElements:[this._balloon.view.element],callback:()=>this._hideUI()})}_addActionsView(){this._areActionsInPanel||this._balloon.add({view:this.actionsView,position:this._getBalloonPositionData()})}_addFormView(){if(this._isFormInPanel)return;const t=this.editor.commands.get("link");this._balloon.add({view:this.formView,position:this._getBalloonPositionData()}),this.formView.urlInputView.select(),this.formView.urlInputView.inputView.element.value=t.value||""}_removeFormView(){this._isFormInPanel&&(this._balloon.remove(this.formView),this.editor.editing.view.focus())}_showUI(){this.editor.commands.get("link").isEnabled&&(this._getSelectedLinkElement()?this._areActionsVisible?this._addFormView():this._addActionsView():(this._addActionsView(),this._addFormView()),this._startUpdatingUI())}_hideUI(){if(!this._isUIInPanel)return;const t=this.editor;this.stopListening(t.ui,"update"),this._removeFormView(),this._balloon.remove(this.actionsView),t.editing.view.focus()}_startUpdatingUI(){const t=this.editor,e=t.editing.view.document;let n=this._getSelectedLinkElement(),o=i();function i(){return e.selection.focus.getAncestors().reverse().find(t=>t.is("element"))}this.listenTo(t.ui,"update",()=>{const t=this._getSelectedLinkElement(),e=i();n&&!t||!n&&e!==o?this._hideUI():this._balloon.updatePosition(this._getBalloonPositionData()),n=t,o=e})}get _isFormInPanel(){return this._balloon.hasView(this.formView)}get _areActionsInPanel(){return this._balloon.hasView(this.actionsView)}get _areActionsVisible(){return this._balloon.visibleView===this.actionsView}get _isUIInPanel(){return this._isFormInPanel||this._areActionsInPanel}get _isUIVisible(){return this._balloon.visibleView==this.formView||this._areActionsVisible}_getBalloonPositionData(){const t=this.editor.editing.view,e=t.document,n=this._getSelectedLinkElement();return{target:n?t.domConverter.mapViewToDom(n):t.domConverter.viewRangeToDom(e.selection.getFirstRange())}}_getSelectedLinkElement(){const t=this.editor.editing.view.document.selection;if(t.isCollapsed)return pb(t.getFirstPosition());{const e=t.getFirstRange().getTrimmed(),n=pb(e.start),o=pb(e.end);return n&&n==o&&Vo.createIn(n).getTrimmed().isEqual(e)?n:null}}}function pb(t){return t.getAncestors().find(t=>(function(t){return t.is("attributeElement")&&!!t.getCustomProperty(Wg)})(t))}class mb extends Jh{constructor(t,e){super(t),this.type="bulleted"==e?"bulleted":"numbered"}refresh(){this.value=this._getValue(),this.isEnabled=this._checkEnabled()}execute(){const t=this.editor.model,e=t.document,n=Array.from(e.selection.getSelectedBlocks()).filter(e=>bb(e,t.schema)),o=!0===this.value;t.change(t=>{if(o){let e=n[n.length-1].nextSibling,o=Number.POSITIVE_INFINITY,i=[];for(;e&&"listItem"==e.name&&0!==e.getAttribute("listIndent");){const t=e.getAttribute("listIndent");t<o&&(o=t);const n=t-o;i.push({element:e,listIndent:n}),e=e.nextSibling}i=i.reverse();for(const e of i)t.setAttribute("listIndent",e.listIndent,e.element)}if(!o){let t=Number.POSITIVE_INFINITY;for(const e of n)e.is("listItem")&&e.getAttribute("listIndent")<t&&(t=e.getAttribute("listIndent"));gb(n,!0,t=0===t?1:t),gb(n,!1,t)}for(const e of n.reverse())o&&"listItem"==e.name?t.rename(e,"paragraph"):o||"listItem"==e.name?o||"listItem"!=e.name||e.getAttribute("listType")==this.type||t.setAttribute("listType",this.type,e):(t.setAttributes({listType:this.type,listIndent:0},e),t.rename(e,"listItem"))})}_getValue(){const t=cp(this.editor.model.document.selection.getSelectedBlocks());return!!t&&t.is("listItem")&&t.getAttribute("listType")==this.type}_checkEnabled(){if(this.value)return!0;const t=this.editor.model.document.selection,e=this.editor.model.schema,n=cp(t.getSelectedBlocks());return!!n&&bb(n,e)}}function gb(t,e,n){const o=e?t[0]:t[t.length-1];if(o.is("listItem")){let i=o[e?"previousSibling":"nextSibling"],r=o.getAttribute("listIndent");for(;i&&i.is("listItem")&&i.getAttribute("listIndent")>=n;)r>i.getAttribute("listIndent")&&(r=i.getAttribute("listIndent")),i.getAttribute("listIndent")==r&&t[e?"unshift":"push"](i),i=i[e?"previousSibling":"nextSibling"]}}function bb(t,e){return e.checkChild(t.parent,"listItem")&&!e.isObject(t)}class wb extends Jh{constructor(t,e){super(t),this._indentBy="forward"==e?1:-1}refresh(){this.isEnabled=this._checkEnabled()}execute(){const t=this.editor.model,e=t.document;let n=Array.from(e.selection.getSelectedBlocks());t.change(t=>{const e=n[n.length-1];let o=e.nextSibling;for(;o&&"listItem"==o.name&&o.getAttribute("listIndent")>e.getAttribute("listIndent");)n.push(o),o=o.nextSibling;this._indentBy<0&&(n=n.reverse());for(const e of n){const n=e.getAttribute("listIndent")+this._indentBy;n<0?t.rename(e,"paragraph"):t.setAttribute("listIndent",n,e)}})}_checkEnabled(){const t=cp(this.editor.model.document.selection.getSelectedBlocks());if(!t||!t.is("listItem"))return!1;if(this._indentBy>0){const e=t.getAttribute("listIndent"),n=t.getAttribute("listType");let o=t.previousSibling;for(;o&&o.is("listItem")&&o.getAttribute("listIndent")>=e;){if(o.getAttribute("listIndent")==e)return o.getAttribute("listType")==n;o=o.previousSibling}return!1}return!0}}function vb(){const t=!this.isEmpty&&("ul"==this.getChild(0).name||"ol"==this.getChild(0).name);return this.isEmpty||t?0:null}function _b(t,e,n){const o=n.consumable;if(!o.test(e.item,"insert")||!o.test(e.item,"attribute:listType")||!o.test(e.item,"attribute:listIndent"))return;o.consume(e.item,"insert"),o.consume(e.item,"attribute:listType"),o.consume(e.item,"attribute:listIndent");const i=e.item;Fb(i,function(t,e){const n=e.mapper,o=e.writer,i="numbered"==t.getAttribute("listType")?"ol":"ul",r=function(t){const e=t.createContainerElement("li");return e.getFillerOffset=vb,e}(o),s=o.createContainerElement(i,null);return o.insert(Fo.createAt(s),r),n.bindElements(t,r),r}(i,n),n)}function kb(t,e,n){const o=n.mapper.toViewPosition(e.position).getLastMatchingPosition(t=>!t.item.is("li")).nodeAfter,i=n.writer;i.breakContainer(Fo.createBefore(o)),i.breakContainer(Fo.createAfter(o));const r=o.parent,s=r.previousSibling,a=Vo.createOn(r),c=i.remove(a);s&&s.nextSibling&&Mb(i,s,s.nextSibling),Vb(n.mapper.toModelElement(o).getAttribute("listIndent")+1,e.position,a.start,o,n);for(const t of Vo.createIn(c).getItems())n.mapper.unbindViewElement(t);t.stop()}function yb(t,e,n){if(!n.consumable.consume(e.item,"attribute:listType"))return;const o=n.mapper.toViewElement(e.item),i=n.writer;i.breakContainer(Fo.createBefore(o)),i.breakContainer(Fo.createAfter(o));let r=o.parent;const s="numbered"==e.attributeNewValue?"ol":"ul";Mb(i,r=i.rename(r,s),r.nextSibling),Mb(i,r.previousSibling,r);for(const t of e.item.getChildren())n.consumable.consume(t,"insert")}function xb(t,e,n){if(!n.consumable.consume(e.item,"attribute:listIndent"))return;const o=n.mapper.toViewElement(e.item),i=n.writer;i.breakContainer(Fo.createBefore(o)),i.breakContainer(Fo.createAfter(o));const r=o.parent,s=r.previousSibling,a=Vo.createOn(r);i.remove(a),s&&s.nextSibling&&Mb(i,s,s.nextSibling),Vb(e.attributeOldValue+1,e.range.start,a.start,o,n),Fb(e.item,o,n);for(const t of e.item.getChildren())n.consumable.consume(t,"insert")}function Ab(t,e,n){if("listItem"!=e.item.name){let t=n.mapper.toViewPosition(e.range.start);const o=n.writer,i=[];for(;("ul"==t.parent.name||"ol"==t.parent.name)&&"li"==(t=o.breakContainer(t)).parent.name;){const e=t,n=Fo.createAt(t.parent,"end");if(!e.isEqual(n)){const t=o.remove(new Vo(e,n));i.push(t)}t=Fo.createAfter(t.parent)}if(i.length>0){for(let e=0;e<i.length;e++){const n=t.nodeBefore;if(t=o.insert(t,i[e]).end,e>0){const e=Mb(o,n,n.nextSibling);e&&e.parent==n&&t.offset--}}Mb(o,t.nodeBefore,t.nodeAfter)}}}function Cb(t,e,n){const o=n.mapper.toViewPosition(e.position),i=o.nodeBefore,r=o.nodeAfter;Mb(n.writer,i,r)}function Tb(t,e,n){if(n.consumable.consume(e.viewItem,{name:!0})){const t=n.writer,o=this.conversionApi.store,i=t.createElement("listItem");o.indent=o.indent||0,t.setAttribute("listIndent",o.indent,i);const r=e.viewItem.parent&&"ol"==e.viewItem.parent.name?"numbered":"bulleted";t.setAttribute("listType",r,i),o.indent++;const s=n.splitToAllowedParent(i,e.modelCursor);if(!s)return;t.insert(i,s.position);let a=vs.createAfter(i);for(const t of e.viewItem.getChildren())"ul"==t.name||"ol"==t.name?a=n.convertItem(t,a).modelCursor:n.convertItem(t,vs.createAt(i,"end"));o.indent--,e.modelRange=new _s(e.modelCursor,a),s.cursorParent?e.modelCursor=vs.createAt(s.cursorParent):e.modelCursor=e.modelRange.end}}function Sb(t,e,n){if(n.consumable.test(e.viewItem,{name:!0})){const t=Array.from(e.viewItem.getChildren());for(const e of t)e.is("li")||e._remove()}}function Eb(t,e,n){if(n.consumable.test(e.viewItem,{name:!0})){if(0===e.viewItem.childCount)return;const t=[...e.viewItem.getChildren()];let n=!1,o=!0;for(const e of t)!n||e.is("ul")||e.is("ol")||e._remove(),e.is("text")?(o&&(e._data=e.data.replace(/^\s+/,"")),(!e.nextSibling||e.nextSibling.is("ul")||e.nextSibling.is("ol"))&&(e._data=e.data.replace(/\s+$/,""))):(e.is("ul")||e.is("ol"))&&(n=!0),o=!1}}function Pb(t,e){if(e.isPhantom)return;const n=e.modelPosition.nodeBefore;if(n&&n.is("listItem")){const t=e.mapper.toViewElement(n),o=t.getAncestors().find(t=>t.is("ul")||t.is("ol")),i=new Mo({startPosition:Fo.createAt(t,0)});for(const t of i){if("elementStart"==t.type&&t.item.is("li")){e.viewPosition=t.previousPosition;break}if("elementEnd"==t.type&&t.item==o){e.viewPosition=t.nextPosition;break}}}}function Ob(t,e){const n=e.viewPosition,o=n.parent,i=e.mapper;if("ul"==o.name||"ol"==o.name){if(n.isAtEnd){const t=i.toModelElement(n.nodeBefore),o=i.getModelLength(n.nodeBefore);e.modelPosition=vs.createBefore(t).getShiftedBy(o)}else{const t=i.toModelElement(n.nodeAfter);e.modelPosition=vs.createBefore(t)}t.stop()}else if("li"==o.name&&n.nodeBefore&&("ul"==n.nodeBefore.name||"ol"==n.nodeBefore.name)){const r=i.toModelElement(o);let s=1,a=n.nodeBefore;for(;a&&(a.is("ul")||a.is("ol"));)s+=i.getModelLength(a),a=a.previousSibling;e.modelPosition=vs.createBefore(r).getShiftedBy(s),t.stop()}}function Rb(t,[e,n]){let o=e.is("documentFragment")?e.getChild(0):e;if(o&&o.is("listItem")){const t=n.getFirstPosition();let e=null;if(t.parent.is("listItem")?e=t.parent:t.nodeBefore&&t.nodeBefore.is("listItem")&&(e=t.nodeBefore),e){const t=e.getAttribute("listIndent");if(t>0)for(;o&&o.is("listItem");)o._setAttribute("listIndent",o.getAttribute("listIndent")+t),o=o.nextSibling}}}function Ib(t,e){const n=!!e.sameIndent,o=!!e.smallerIndent,i=t instanceof ms?t.getAttribute("listIndent"):e.listIndent;let r=t instanceof ms?t.previousSibling:t.nodeBefore;for(;r&&"listItem"==r.name;){const t=r.getAttribute("listIndent");if(n&&i==t||o&&i>t)return r;r=r.previousSibling}return null}function Mb(t,e,n){return e&&n&&("ul"==e.name||"ol"==e.name)&&e.name==n.name?t.mergeContainers(Fo.createAfter(e)):null}function Fb(t,e,n){const o=e.parent,i=n.mapper,r=n.writer;let s=i.toViewPosition(vs.createBefore(t));const a=Ib(t,{sameIndent:!0,smallerIndent:!0}),c=t.previousSibling;if(a&&a.getAttribute("listIndent")==t.getAttribute("listIndent")){const t=i.toViewElement(a);s=r.breakContainer(Fo.createAfter(t))}else s=c&&"listItem"==c.name?i.toViewPosition(vs.createAt(c,"end")):i.toViewPosition(vs.createBefore(t));if(s=Nb(s),r.insert(s,o),c&&"listItem"==c.name){const t=i.toViewElement(c),n=new Mo({boundaries:new Vo(Fo.createAt(t,0),s),ignoreElementEnd:!0});for(const t of n)if(t.item.is("li")){const o=r.breakContainer(Fo.createBefore(t.item)),i=t.item.parent,s=Fo.createAt(e,"end");Mb(r,s.nodeBefore,s.nodeAfter),r.move(Vo.createOn(i),s),n.position=o}}else{const n=o.nextSibling;if(n&&(n.is("ul")||n.is("ol"))){let o=null;for(const e of n.getChildren()){const n=i.toModelElement(e);if(!(n&&n.getAttribute("listIndent")>t.getAttribute("listIndent")))break;o=e}o&&(r.breakContainer(Fo.createAfter(o)),r.move(Vo.createOn(o.parent),Fo.createAt(e,"end")))}}Mb(r,o,o.nextSibling),Mb(r,o.previousSibling,o)}function Vb(t,e,n,o,i){const r=Ib(e,{sameIndent:!0,smallerIndent:!0,listIndent:t}),s=i.mapper,a=i.writer,c=r?r.getAttribute("listIndent"):null;let l;if(r)if(c==t){const t=s.toViewElement(r).parent;l=Fo.createAfter(t)}else{const t=vs.createAt(r,"end");l=s.toViewPosition(t)}else l=n;l=Nb(l);for(const t of[...o.getChildren()])(t.is("ul")||t.is("ol"))&&(l=a.move(Vo.createOn(t),l).end,Mb(a,t,t.nextSibling),Mb(a,t.previousSibling,t))}function Nb(t){return t.getLastMatchingPosition(t=>t.item.is("uiElement"))}class Db extends Wh{static get requires(){return[$m]}init(){const t=this.editor;t.model.schema.register("listItem",{inheritAllFrom:"$block",allowAttributes:["listType","listIndent"]});const e=t.data,n=t.editing;t.model.document.registerPostFixer(e=>(function(t,e){const n=t.document.differ.getChanges(),o=new Map;let i=!1;for(const t of n)if("insert"==t.type&&"listItem"==t.name)r(t.position);else if("insert"==t.type&&"listItem"!=t.name){if("$text"!=t.name){const n=t.position.nodeAfter;n.hasAttribute("listIndent")&&(e.removeAttribute("listIndent",n),i=!0),n.hasAttribute("listType")&&(e.removeAttribute("listType",n),i=!0)}r(t.position.getShiftedBy(t.length))}else"remove"==t.type&&"listItem"==t.name?r(t.position):"attribute"==t.type&&"listIndent"==t.attributeKey?r(t.range.start):"attribute"==t.type&&"listType"==t.attributeKey&&r(t.range.start);for(const t of o.values())s(t),a(t);return i;function r(t){const e=t.nodeBefore;if(e&&e.is("listItem")){let n=e;if(o.has(n))return;for(;n.previousSibling&&n.previousSibling.is("listItem");)if(n=n.previousSibling,o.has(n))return;o.set(t.nodeBefore,n)}else{const e=t.nodeAfter;e&&e.is("listItem")&&o.set(e,e)}}function s(t){let n=0,o=null;for(;t&&t.is("listItem");){const r=t.getAttribute("listIndent");if(r>n){let s;null===o?(o=r-n,s=n):(o>r&&(o=r),s=r-o),e.setAttribute("listIndent",s,t),i=!0}else o=null,n=t.getAttribute("listIndent")+1;t=t.nextSibling}}function a(t){let n=[],o=null;for(;t&&t.is("listItem");){const r=t.getAttribute("listIndent");if(o&&o.getAttribute("listIndent")>r&&(n=n.slice(0,r+1)),0!=r)if(n[r]){const o=n[r];t.getAttribute("listType")!=o&&(e.setAttribute("listType",o,t),i=!0)}else n[r]=t.getAttribute("listType");o=t,t=t.nextSibling}}})(t.model,e)),n.mapper.registerViewToModelLength("li",Bb),e.mapper.registerViewToModelLength("li",Bb),n.mapper.on("modelToViewPosition",Pb),n.mapper.on("viewToModelPosition",Ob),e.mapper.on("modelToViewPosition",Pb),n.downcastDispatcher.on("insert",Ab,{priority:"high"}),n.downcastDispatcher.on("insert:listItem",_b),e.downcastDispatcher.on("insert",Ab,{priority:"high"}),e.downcastDispatcher.on("insert:listItem",_b),n.downcastDispatcher.on("attribute:listType:listItem",yb),e.downcastDispatcher.on("attribute:listType:listItem",yb),n.downcastDispatcher.on("attribute:listIndent:listItem",xb),e.downcastDispatcher.on("attribute:listIndent:listItem",xb),n.downcastDispatcher.on("remove:listItem",kb),n.downcastDispatcher.on("remove",Cb,{priority:"low"}),e.downcastDispatcher.on("remove:listItem",kb),e.downcastDispatcher.on("remove",Cb,{priority:"low"}),e.upcastDispatcher.on("element:ul",Sb,{priority:"high"}),e.upcastDispatcher.on("element:ol",Sb,{priority:"high"}),e.upcastDispatcher.on("element:li",Eb,{priority:"high"}),e.upcastDispatcher.on("element:li",Tb),t.model.on("insertContent",Rb,{priority:"high"}),t.commands.add("numberedList",new mb(t,"numbered")),t.commands.add("bulletedList",new mb(t,"bulleted")),t.commands.add("indentList",new wb(t,"forward")),t.commands.add("outdentList",new wb(t,"backward"));const o=this.editor.editing.view.document;this.listenTo(o,"enter",(t,e)=>{const n=this.editor.model.document,o=n.selection.getLastPosition().parent;n.selection.isCollapsed&&"listItem"==o.name&&o.isEmpty&&(this.editor.execute("outdentList"),e.preventDefault(),t.stop())}),this.listenTo(o,"delete",(t,e)=>{if("backward"!==e.direction)return;const n=this.editor.model.document.selection;if(!n.isCollapsed)return;const o=n.getFirstPosition();if(!o.isAtStart)return;const i=o.parent;"listItem"===i.name&&(i.previousSibling&&"listItem"===i.previousSibling.name||(this.editor.execute("outdentList"),e.preventDefault(),t.stop()))},{priority:"high"});const i=t=>(e,n)=>{this.editor.commands.get(t).isEnabled&&(this.editor.execute(t),n())};this.editor.keystrokes.set("Tab",i("indentList")),this.editor.keystrokes.set("Shift+Tab",i("outdentList"))}}function Bb(t){let e=1;for(const n of t.getChildren())if("ul"==n.name||"ol"==n.name)for(const t of n.getChildren())e+=Bb(t);return e}var Lb=n(30),jb=n.n(Lb),zb=n(31),qb=n.n(zb);class Ub extends Wh{init(){const t=this.editor.t;this._addButton("numberedList",t("n"),jb.a),this._addButton("bulletedList",t("o"),qb.a)}_addButton(t,e,n){const o=this.editor;o.ui.componentFactory.add(t,i=>{const r=o.commands.get(t),s=new Of(i);return s.set({label:e,icon:n,tooltip:!0}),s.bind("isOn","isEnabled").to(r,"value","isEnabled"),this.listenTo(s,"execute",()=>o.execute(t)),s})}}n.d(e,"default",function(){return Wb});class Wb extends Uh{}Wb.builtinPlugins=[class extends Wh{static get requires(){return[Gh,tf,rf,yf,Nf]}static get pluginName(){return"Essentials"}},class extends Wh{static get requires(){return[Lf]}static get pluginName(){return"CKFinderUploadAdapter"}init(){const t=this.editor.config.get("ckfinder.uploadUrl");t&&(this.editor.plugins.get(Lf).createUploadAdapter=(e=>new Hf(e,t,this.editor.t)))}},class extends Wh{static get pluginName(){return"Autoformat"}afterInit(){this._addListAutoformats(),this._addBasicStylesAutoformats(),this._addHeadingAutoformats(),this._addBlockQuoteAutoformats()}_addListAutoformats(){const t=this.editor.commands;t.get("bulletedList")&&new $f(this.editor,/^[*-]\s$/,"bulletedList"),t.get("numberedList")&&new $f(this.editor,/^\d+[.|)]\s$/,"numberedList")}_addBasicStylesAutoformats(){const t=this.editor.commands;t.get("bold")&&(new Kf(this.editor,/(\*\*)([^*]+)(\*\*)$/g,"bold"),new Kf(this.editor,/(__)([^_]+)(__)$/g,"bold")),t.get("italic")&&(new Kf(this.editor,/(?:^|[^*])(\*)([^*_]+)(\*)$/g,"italic"),new Kf(this.editor,/(?:^|[^_])(_)([^_]+)(_)$/g,"italic")),t.get("code")&&new Kf(this.editor,/(`)([^`]+)(`)$/g,"code")}_addHeadingAutoformats(){const t=this.editor.commands.get("heading");t&&t.modelElements.filter(t=>t.match(/^heading[1-6]$/)).forEach(t=>{const e=t[7],n=new RegExp(`^(#{${e}})\\s$`);new $f(this.editor,n,()=>{this.editor.execute("heading",{value:t})})})}_addBlockQuoteAutoformats(){this.editor.commands.get("blockQuote")&&new $f(this.editor,/^>\s$/,"blockQuote")}},class extends Wh{static get requires(){return[Yf,ep]}static get pluginName(){return"Bold"}},class extends Wh{static get requires(){return[op,ap]}static get pluginName(){return"Italic"}},class extends Wh{static get requires(){return[fp,gp]}static get pluginName(){return"BlockQuote"}},class extends Wh{static get requires(){return[Ap,ym,Um]}static get pluginName(){return"EasyImage"}},class extends Wh{static get requires(){return[Xm,dg]}static get pluginName(){return"Heading"}},ym,class extends Wh{static get requires(){return[wg]}static get pluginName(){return"ImageCaption"}},class extends Wh{static get requires(){return[Dg,Bg]}static get pluginName(){return"ImageStyle"}},class extends Wh{static get requires(){return[mm]}static get pluginName(){return"ImageToolbar"}init(){const t=this.editor,e=t.plugins.get("BalloonToolbar");e&&this.listenTo(e,"show",e=>{Up(t.editing.view.document.selection)&&e.stop()},{priority:"high"})}afterInit(){const t=this.editor,e=t.config.get("image.toolbar");e&&e.length&&(this._balloon=this.editor.plugins.get("ContextualBalloon"),this._toolbar=new jh,this._toolbar.fillFromConfig(e,t.ui.componentFactory),this.listenTo(t.ui,"update",()=>{this._checkIsVisible()}),this.listenTo(t.ui.focusTracker,"change:isFocused",()=>{this._checkIsVisible()},{priority:"low"}))}_checkIsVisible(){const t=this.editor;t.ui.focusTracker.isFocused&&Up(t.editing.view.document.selection)?this._showToolbar():this._hideToolbar()}_showToolbar(){const t=this.editor;this._isVisible?wm(t):this._balloon.hasView(this._toolbar)||this._balloon.add({view:this._toolbar,position:vm(t),balloonClassName:Lg})}_hideToolbar(){this._isVisible&&this._balloon.remove(this._toolbar)}get _isVisible(){return this._balloon.visibleView==this._toolbar}},Um,class extends Wh{static get requires(){return[nb,fb]}static get pluginName(){return"Link"}},class extends Wh{static get requires(){return[Db,Ub]}static get pluginName(){return"List"}},$m],Wb.defaultConfig={toolbar:{items:["heading","|","bold","italic","link","bulletedList","numberedList","imageUpload","blockQuote","undo","redo"]},image:{toolbar:["imageStyle:full","imageStyle:side","|","imageTextAlternative"]},language:"en"}}]).default});
//# sourceMappingURL=ckeditor.js.map