OrdersApp/static/gogo/js/vendor/ckeditor5-build-classic/ckeditor.js

/**
 * @license Copyright (c) 2003-2018, CKSource - Frederico Knabben. All rights reserved.
 * For licensing, see LICENSE.md.
 */
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this._fireChange('attributes',this),'class'==e?!!(0<this._classes.size)&&(this._classes.clear(),!0):'style'==e?!!(0<this._styles.size)&&(this._styles.clear(),!0):this._attrs.delete(e)}_addClass(e){this._fireChange('attributes',this),e=Array.isArray(e)?e:[e],e.forEach((e)=>this._classes.add(e))}_removeClass(e){this._fireChange('attributes',this),e=Array.isArray(e)?e:[e],e.forEach((e)=>this._classes.delete(e))}_setStyle(e,t){if(this._fireChange('attributes',this),hs(e)){const t=Object.keys(e);for(const o of t)this._styles.set(o,e[o])}else this._styles.set(e,t)}_removeStyle(e){this._fireChange('attributes',this),e=Array.isArray(e)?e:[e],e.forEach((e)=>this._styles.delete(e))}_setCustomProperty(e,t){this._customProperties.set(e,t)}_removeCustomProperty(e){return this._customProperties.delete(e)}}class ec extends Zd{constructor(e,t,o){super(e,t,o),this.getFillerOffset=M}is(e,t=null){return t?'containerElement'==e&&t==this.name||super.is(e,t):'containerElement'==e||super.is(e)}}var 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_s('observable-bind-rebind: Cannot bind the same property more that once.')});const o=new Map;return e.forEach((e)=>{const n={property:e,to:[]};t.set(e,n),o.set(e,n)}),{to:j,toMany:q,_observable:this,_bindProperties:e,_to:[],_bindings:o}},unbind(...e){if(!(Vc in this))return;const t=this[Nc],o=this[Fc];if(e.length){if(!U(e))throw new _s('observable-unbind-wrong-properties: Properties must be strings.');e.forEach((e)=>{const n=t.get(e);if(!n)return;let i,r,a,s;n.to.forEach((e)=>{i=e[0],r=e[1],a=o.get(i),s=a[r],s.delete(n),s.size||delete a[r],Object.keys(a).length||(o.delete(i),this.stopListening(i,'change'))}),t.delete(e)})}else o.forEach((e,t)=>{this.stopListening(t,'change')}),o.clear(),t.clear()},decorate(e){const t=this[e];if(!t)throw new _s('observablemixin-cannot-decorate-undefined: Cannot decorate an undefined method.',{object:this,methodName:e});this.on(e,(e,o)=>{e.return=t.apply(this,o)}),this[e]=function(...t){return this.fire(e,t)}}};Rc(Dc,Ps);var Mc=Dc;const Bc=Symbol('document');class Lc extends ec{constructor(e,t,o){super(e,t,o),this.set('isReadOnly',!1),this.set('isFocused',!1)}get document(){return this.getCustomProperty(Bc)}set _document(e){if(this.getCustomProperty(Bc))throw new _s('view-editableelement-document-already-set: View document is already set.');this._setCustomProperty(Bc,e),this.bind('isReadOnly').to(e),this.bind('isFocused').to(e,'isFocused',(t)=>t&&e.selection.editableElement==this),this.listenTo(e.selection,'change',()=>{this.isFocused=e.isFocused&&e.selection.editableElement==this})}}f(Lc,Mc);const zc=Symbol('rootName');class jc extends Lc{constructor(e){super(e),this.rootName='main'}is(e,t=null){return t?'rootElement'==e&&t==this.name||super.is(e,t):'rootElement'==e||super.is(e)}get rootName(){return this.getCustomProperty(zc)}set rootName(e){this._setCustomProperty(zc,e)}set _name(e){this.name=e}}class qc{constructor(e={}){if(!e.boundaries&&!e.startPosition)throw new _s('view-tree-walker-no-start-position: Neither boundaries nor starting position have been defined.');if(e.direction&&'forward'!=e.direction&&'backward'!=e.direction)throw new _s('view-tree-walker-unknown-direction: Only `backward` and `forward` direction allowed.',{direction:e.direction});this.boundaries=e.boundaries||null,this.position=e.startPosition?Wc.createFromPosition(e.startPosition):Wc.createFromPosition(e.boundaries['backward'==e.direction?'end':'start']),this.direction=e.direction||'forward',this.singleCharacters=!!e.singleCharacters,this.shallow=!!e.shallow,this.ignoreElementEnd=!!e.ignoreElementEnd,this._boundaryStartParent=this.boundaries?this.boundaries.start.parent:null,this._boundaryEndParent=this.boundaries?this.boundaries.end.parent:null}[Symbol.iterator](){return this}skip(e){let t,o,n;do n=this.position,({done:t,value:o}=this.next());while(!t&&e(o));t||(this.position=n)}next(){return'forward'==this.direction?this._next():this._previous()}_next(){let e=Wc.createFromPosition(this.position);const t=this.position,o=e.parent;if(null===o.parent&&e.offset===o.childCount)return{done:!0};if(o===this._boundaryEndParent&&e.offset==this.boundaries.end.offset)return{done:!0};let n;if(o instanceof Qd){if(e.isAtEnd)return this.position=Wc.createAfter(o),this._next();n=o.data[e.offset]}else n=o.getChild(e.offset);if(n instanceof Zd)return this.shallow?e.offset++:e=new Wc(n,0),this.position=e,this._formatReturnValue('elementStart',n,t,e,1);if(!(n instanceof Qd)){if('string'==typeof n){let n;if(this.singleCharacters)n=1;else{const t=o===this._boundaryEndParent?this.boundaries.end.offset:o.data.length;n=t-e.offset}const i=new Yd(o,e.offset,n);return e.offset+=n,this.position=e,this._formatReturnValue('text',i,t,e,n)}return e=Wc.createAfter(o),this.position=e,this.ignoreElementEnd?this._next():this._formatReturnValue('elementEnd',o,t,e)}if(this.singleCharacters)return e=new Wc(n,0),this.position=e,this._next();else{let o=n.data.length,i;return n==this._boundaryEndParent?(o=this.boundaries.end.offset,i=new Yd(n,0,o),e=Wc.createAfter(i)):(i=new Yd(n,0,n.data.length),e.offset++),this.position=e,this._formatReturnValue('text',i,t,e,o)}}_previous(){let e=Wc.createFromPosition(this.position);const t=this.position,o=e.parent;if(null===o.parent&&0===e.offset)return{done:!0};if(o==this._boundaryStartParent&&e.offset==this.boundaries.start.offset)return{done:!0};let n;if(o instanceof Qd){if(e.isAtStart)return this.position=Wc.createBefore(o),this._previous();n=o.data[e.offset-1]}else n=o.getChild(e.offset-1);if(n instanceof Zd)return this.shallow?(e.offset--,this.position=e,this._formatReturnValue('elementStart',n,t,e,1)):(e=new Wc(n,n.childCount),this.position=e,this.ignoreElementEnd?this._previous():this._formatReturnValue('elementEnd',n,t,e));if(!(n instanceof Qd)){if('string'==typeof n){let n;if(!this.singleCharacters){const t=o===this._boundaryStartParent?this.boundaries.start.offset:0;n=e.offset-t}else n=1;e.offset-=n;const i=new Yd(o,e.offset,n);return this.position=e,this._formatReturnValue('text',i,t,e,n)}return e=Wc.createBefore(o),this.position=e,this._formatReturnValue('elementStart',o,t,e,1)}if(this.singleCharacters)return e=new Wc(n,n.data.length),this.position=e,this._previous();else{let o=n.data.length,i;if(n==this._boundaryStartParent){const t=this.boundaries.start.offset;i=new Yd(n,t,n.data.length-t),o=i.data.length,e=Wc.createBefore(i)}else i=new Yd(n,0,n.data.length),e.offset--;return this.position=e,this._formatReturnValue('text',i,t,e,o)}}_formatReturnValue(e,t,o,n,i){return t instanceof Yd&&(t.offsetInText+t.data.length==t.textNode.data.length&&('forward'!=this.direction||this.boundaries&&this.boundaries.end.isEqual(this.position)?o=Wc.createAfter(t.textNode):(n=Wc.createAfter(t.textNode),this.position=n)),0===t.offsetInText&&('backward'!=this.direction||this.boundaries&&this.boundaries.start.isEqual(this.position)?o=Wc.createBefore(t.textNode):(n=Wc.createBefore(t.textNode),this.position=n))),{done:!1,value:{type:e,item:t,previousPosition:o,nextPosition:n,length:i}}}}class Wc{constructor(e,t){this.parent=e,this.offset=t}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 e=this.parent.is('text')?this.parent.data.length:this.parent.childCount;return this.offset===e}get root(){return this.parent.root}get editableElement(){let e=this.parent;for(;!(e instanceof Lc);)if(e.parent)e=e.parent;else return null;return e}getShiftedBy(e){const t=Wc.createFromPosition(this),o=t.offset+e;return t.offset=0>o?0:o,t}getLastMatchingPosition(e,t={}){t.startPosition=this;const o=new qc(t);return o.skip(e),o.position}getAncestors(){return this.parent.is('documentFragment')?[this.parent]:this.parent.getAncestors({includeSelf:!0})}getCommonAncestor(e){const t=this.getAncestors(),o=e.getAncestors();let n=0;for(;t[n]==o[n]&&t[n];)n++;return 0==n?null:t[n-1]}isEqual(e){return this.parent==e.parent&&this.offset==e.offset}isBefore(e){return'before'==this.compareWith(e)}isAfter(e){return'after'==this.compareWith(e)}compareWith(e){if(this.root!==e.root)return'different';if(this.isEqual(e))return'same';const t=this.parent.is('node')?this.parent.getPath():[],o=e.parent.is('node')?e.parent.getPath():[];t.push(this.offset),o.push(e.offset);const n=A(t,o);return'prefix'===n?'before':'extension'===n?'after':t[n]<o[n]?'before':'after'}static createAt(e,t){if(e instanceof Wc)return this.createFromPosition(e);else{const o=e;if('end'==t)t=o.is('text')?o.data.length:o.childCount;else{if('before'==t)return this.createBefore(o);if('after'==t)return this.createAfter(o);t||(t=0)}return new Wc(o,t)}}static createAfter(e){if(e.is('textProxy'))return new Wc(e.textNode,e.offsetInText+e.data.length);if(!e.parent)throw new _s('view-position-after-root: You can not make position after root.',{root:e});return new Wc(e.parent,e.index+1)}static createBefore(e){if(e.is('textProxy'))return new Wc(e.textNode,e.offsetInText);if(!e.parent)throw new _s('view-position-before-root: You can not make position before root.',{root:e});return new Wc(e.parent,e.index)}static createFromPosition(e){return new this(e.parent,e.offset)}}class Uc{constructor(e,t=null){this.start=Wc.createFromPosition(e),this.end=t?Wc.createFromPosition(t):Wc.createFromPosition(e)}*[Symbol.iterator](){yield*new qc({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 e=this.start.getLastMatchingPosition(Q,{direction:'backward'}),t=this.end.getLastMatchingPosition(Q);return e.parent.is('text')&&e.isAtStart&&(e=Wc.createBefore(e.parent)),t.parent.is('text')&&t.isAtEnd&&(t=Wc.createAfter(t.parent)),new Uc(e,t)}getTrimmed(){let e=this.start.getLastMatchingPosition(Q);if(e.isAfter(this.end)||e.isEqual(this.end))return new Uc(e,e);let t=this.end.getLastMatchingPosition(Q,{direction:'backward'});const o=e.nodeAfter,n=t.nodeBefore;return o&&o.is('text')&&(e=new Wc(o,0)),n&&n.is('text')&&(t=new Wc(n,n.data.length)),new Uc(e,t)}isEqual(e){return this==e||this.start.isEqual(e.start)&&this.end.isEqual(e.end)}containsPosition(e){return e.isAfter(this.start)&&e.isBefore(this.end)}containsRange(e,t=!1){e.isCollapsed&&(t=!1);const o=this.containsPosition(e.start)||t&&this.start.isEqual(e.start),n=this.containsPosition(e.end)||t&&this.end.isEqual(e.end);return o&&n}getDifference(e){const t=[];return this.isIntersecting(e)?(this.containsPosition(e.start)&&t.push(new Uc(this.start,e.start)),this.containsPosition(e.end)&&t.push(new Uc(e.end,this.end))):t.push(Uc.createFromRange(this)),t}getIntersection(e){if(this.isIntersecting(e)){let t=this.start,o=this.end;return this.containsPosition(e.start)&&(t=e.start),this.containsPosition(e.end)&&(o=e.end),new Uc(t,o)}return null}getWalker(e={}){return e.boundaries=this,new qc(e)}getCommonAncestor(){return this.start.getCommonAncestor(this.end)}*getItems(e={}){e.boundaries=this,e.ignoreElementEnd=!0;const t=new qc(e);for(const o of t)yield o.item}*getPositions(e={}){e.boundaries=this;const t=new qc(e);yield t.position;for(const o of t)yield o.nextPosition}isIntersecting(e){return this.start.isBefore(e.end)&&this.end.isAfter(e.start)}static createFromParentsAndOffsets(e,t,o,n){return new this(new Wc(e,t),new Wc(o,n))}static createFromRange(e){return new this(e.start,e.end)}static createFromPositionAndShift(e,t){const o=e,n=e.getShiftedBy(t);return 0<t?new this(o,n):new this(n,o)}static createIn(e){return this.createFromParentsAndOffsets(e,0,e,e.childCount)}static createOn(e){const t=e.is('textProxy')?e.offsetSize:1;return this.createFromPositionAndShift(Wc.createBefore(e),t)}static createCollapsedAt(e,t){const o=Wc.createAt(e,t),n=Wc.createFromPosition(o);return new Uc(o,n)}}class Hc{constructor(e=null,t,o){this._ranges=[],this._lastRangeBackward=!1,this._isFake=!1,this._fakeSelectionLabel='',this.setTo(e,t,o)}get isFake(){return this._isFake}get fakeSelectionLabel(){return this._fakeSelectionLabel}get anchor(){if(!this._ranges.length)return null;const e=this._ranges[this._ranges.length-1],t=this._lastRangeBackward?e.end:e.start;return Wc.createFromPosition(t)}get focus(){if(!this._ranges.length)return null;const e=this._ranges[this._ranges.length-1],t=this._lastRangeBackward?e.start:e.end;return Wc.createFromPosition(t)}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 e of this._ranges)yield Uc.createFromRange(e)}getFirstRange(){let e=null;for(const t of this._ranges)(!e||t.start.isBefore(e.start))&&(e=t);return e?Uc.createFromRange(e):null}getLastRange(){let e=null;for(const t of this._ranges)(!e||t.end.isAfter(e.end))&&(e=t);return e?Uc.createFromRange(e):null}getFirstPosition(){const e=this.getFirstRange();return e?Wc.createFromPosition(e.start):null}getLastPosition(){const e=this.getLastRange();return e?Wc.createFromPosition(e.end):null}isEqual(e){if(this.isFake!=e.isFake)return!1;if(this.isFake&&this.fakeSelectionLabel!=e.fakeSelectionLabel)return!1;if(this.rangeCount!=e.rangeCount)return!1;if(0===this.rangeCount)return!0;if(!this.anchor.isEqual(e.anchor)||!this.focus.isEqual(e.focus))return!1;for(const t of this._ranges){let o=!1;for(const n of e._ranges)if(t.isEqual(n)){o=!0;break}if(!o)return!1}return!0}isSimilar(e){if(this.isBackward!=e.isBackward)return!1;const t=Y(this.getRanges()),o=Y(e.getRanges());if(t!=o)return!1;if(0==t)return!0;for(let t of this.getRanges()){t=t.getTrimmed();let o=!1;for(let n of e.getRanges())if(n=n.getTrimmed(),t.start.isEqual(n.start)&&t.end.isEqual(n.end)){o=!0;break}if(!o)return!1}return!0}getSelectedElement(){if(1!==this.rangeCount)return null;const e=this.getFirstRange(),t=e.start.nodeAfter,o=e.end.nodeBefore;return t instanceof Zd&&t==o?t:null}setTo(e,t,o){if(null===e)this._setRanges([]),this._setFakeOptions(t);else if(e instanceof Hc||e instanceof Kc)this._setRanges(e.getRanges(),e.isBackward),this._setFakeOptions({fake:e.isFake,label:e.fakeSelectionLabel});else if(e instanceof Uc)this._setRanges([e],t&&t.backward),this._setFakeOptions(t);else if(e instanceof Wc)this._setRanges([new Uc(e)]),this._setFakeOptions(t);else if(e instanceof Jd){const n=!!o&&!!o.backward;let i;if(t===void 0)throw new _s('view-selection-setTo-required-second-parameter: selection.setTo requires the second parameter when the first parameter is a node.');else i='in'==t?Uc.createIn(e):'on'==t?Uc.createOn(e):Uc.createCollapsedAt(e,t);this._setRanges([i],n),this._setFakeOptions(o)}else if(P(e))this._setRanges(e,t&&t.backward),this._setFakeOptions(t);else throw new _s('view-selection-setTo-not-selectable: Cannot set selection to given place.');this.fire('change')}setFocus(e,t){if(null===this.anchor)throw new _s('view-selection-setFocus-no-ranges: Cannot set selection focus if there are no ranges in selection.');const o=Wc.createAt(e,t);if('same'!=o.compareWith(this.focus)){const e=this.anchor;this._ranges.pop(),'before'==o.compareWith(e)?this._addRange(new Uc(o,e),!0):this._addRange(new Uc(e,o)),this.fire('change')}}_setRanges(e,t=!1){e=Array.from(e),this._ranges=[];for(const o of e)this._addRange(o);this._lastRangeBackward=!!t}_setFakeOptions(e={}){this._isFake=!!e.fake,this._fakeSelectionLabel=e.fake?e.label||'':''}_addRange(e,t=!1){if(!(e instanceof Uc))throw new _s('view-selection-invalid-range: Invalid Range.');this._pushRange(e),this._lastRangeBackward=!!t}_pushRange(e){for(const t of this._ranges)if(e.isIntersecting(t))throw new _s('view-selection-range-intersects: Trying to add a range that intersects with another range from selection.',{addedRange:e,intersectingRange:t});this._ranges.push(Uc.createFromRange(e))}}f(Hc,Ps);class Kc{constructor(e=null,t,o){this._selection=new Hc,this._selection.delegate('change').to(this),this._selection.setTo(e,t,o)}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(e){return this._selection.isEqual(e)}isSimilar(e){return this._selection.isSimilar(e)}_setTo(e,t,o){this._selection.setTo(e,t,o)}_setFocus(e,t){this._selection.setFocus(e,t)}}f(Kc,Ps);class Gc{constructor(e={}){this._items=[],this._itemMap=new Map,this._idProperty=e.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(e,t){let o;const n=this._idProperty;if(n in e){if(o=e[n],'string'!=typeof o)throw new _s('collection-add-invalid-id');if(this.get(o))throw new _s('collection-add-item-already-exists')}else e[n]=o=i();if(void 0===t)t=this._items.length;else if(t>this._items.length||0>t)throw new _s('collection-add-item-invalid-index');return this._items.splice(t,0,e),this._itemMap.set(o,e),this.fire('add',e,t),this}get(e){let t;if('string'==typeof e)t=this._itemMap.get(e);else if('number'==typeof e)t=this._items[e];else throw new _s('collection-get-invalid-arg: Index or id must be given.');return t||null}getIndex(e){let t;return t='string'==typeof e?this._itemMap.get(e):e,this._items.indexOf(t)}remove(e){let t=!1,o,n,i;const r=this._idProperty;if('string'==typeof e?(n=e,i=this._itemMap.get(n),t=!i,i&&(o=this._items.indexOf(i))):'number'==typeof e?(o=e,i=this._items[o],t=!i,i&&(n=i[r])):(i=e,n=i[r],o=this._items.indexOf(i),t=-1==o||!this._itemMap.get(n)),t)throw new _s('collection-remove-404: Item not found.');this._items.splice(o,1),this._itemMap.delete(n);const a=this._bindToInternalToExternalMap.get(i);return this._bindToInternalToExternalMap.delete(i),this._bindToExternalToInternalMap.delete(a),this.fire('remove',i,o),i}map(e,t){return this._items.map(e,t)}find(e,t){return this._items.find(e,t)}filter(e,t){return this._items.filter(e,t)}clear(){for(this._bindToCollection&&(this.stopListening(this._bindToCollection),this._bindToCollection=null);this.length;)this.remove(0)}bindTo(e){if(this._bindToCollection)throw new _s('collection-bind-to-rebind: The collection cannot be bound more than once.');return this._bindToCollection=e,{as:(e)=>{this._setUpBindToBinding((t)=>new e(t))},using:(e)=>{'function'==typeof e?this._setUpBindToBinding((t)=>e(t)):this._setUpBindToBinding((t)=>t[e])}}}_setUpBindToBinding(e){const t=this._bindToCollection,o=(o,n,i)=>{const r=t._bindToCollection==this,a=t._bindToInternalToExternalMap.get(n);if(r&&a)this._bindToExternalToInternalMap.set(n,a),this._bindToInternalToExternalMap.set(a,n);else{const o=e(n);if(!o)return void this._skippedIndexesFromExternal.push(i);let r=i;for(const e of this._skippedIndexesFromExternal)i>e&&r--;for(const e of t._skippedIndexesFromExternal)r>=e&&r++;this._bindToExternalToInternalMap.set(n,o),this._bindToInternalToExternalMap.set(o,n),this.add(o,r);for(let e=0;e<t._skippedIndexesFromExternal.length;e++)r<=t._skippedIndexesFromExternal[e]&&t._skippedIndexesFromExternal[e]++}};for(const n of t)o(null,n,t.getIndex(n));this.listenTo(t,'add',o),this.listenTo(t,'remove',(e,t,o)=>{const n=this._bindToExternalToInternalMap.get(t);n&&this.remove(n),this._skippedIndexesFromExternal=this._skippedIndexesFromExternal.reduce((e,t)=>(o<t&&e.push(t-1),o>t&&e.push(t),e),[])})}[Symbol.iterator](){return this._items[Symbol.iterator]()}}f(Gc,Ps);class $c{constructor(){this.selection=new Kc,this.roots=new Gc({idProperty:'rootName'}),this.set('isReadOnly',!1),this.set('isFocused',!1),this.set('isComposing',!1),this._postFixers=new Set}getRoot(e='main'){return this.roots.get(e)}registerPostFixer(e){this._postFixers.add(e)}_callPostFixers(e){let t=!1;do for(const o of this._postFixers)if(t=o(e),t)break;while(t)}}f($c,Mc);const Jc=10;class Qc extends Zd{constructor(e,t,o){super(e,t,o),this.getFillerOffset=X,this._priority=Jc,this._id=null,this._clonesGroup=null}get priority(){return this._priority}get id(){return this._id}getElementsWithSameId(){if(null===this.id)throw new _s('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(e,t=null){return t?'attributeElement'==e&&t==this.name||super.is(e,t):'attributeElement'==e||super.is(e)}isSimilar(e){return null!==this.id||null!==e.id?this.id===e.id:super.isSimilar(e)&&this.priority==e.priority}_clone(e){const t=super._clone(e);return t._priority=this._priority,t._id=this._id,t}}Qc.DEFAULT_PRIORITY=Jc;class Yc extends Zd{constructor(e,t,o){super(e,t,o),this.getFillerOffset=ee}is(e,t=null){return t?'emptyElement'==e&&t==this.name||super.is(e,t):'emptyElement'==e||super.is(e)}_insertChild(e,t){if(t&&(t instanceof Jd||0<Array.from(t).length))throw new _s('view-emptyelement-cannot-add: Cannot add child nodes to EmptyElement instance.')}}const Xc=navigator.userAgent.toLowerCase(),Zc={isMac:function(e){return-1<e.indexOf('macintosh')}(Xc)};var em=Zc;const tm={"⌘":'ctrl',"⇧":'shift',"⌥":'alt'},om={ctrl:'\u2318',shift:'\u21E7',alt:'\u2325'},nm=function(){const e={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 t=65;90>=t;t++){const o=String.fromCharCode(t);e[o.toLowerCase()]=t}for(let t=48;57>=t;t++)e[t-48]=t;for(let t=112;123>=t;t++)e['f'+(t-111)]=t;return e}();class im extends Zd{constructor(e,t,o){super(e,t,o),this.getFillerOffset=ae}is(e,t=null){return t?'uiElement'==e&&t==this.name||super.is(e,t):'uiElement'==e||super.is(e)}_insertChild(e,t){if(t&&(t instanceof Jd||0<Array.from(t).length))throw new _s('view-uielement-cannot-add: Cannot add child nodes to UIElement instance.')}render(e){return this.toDomElement(e)}toDomElement(e){const t=e.createElement(this.name);for(const o of this.getAttributeKeys())t.setAttribute(o,this.getAttribute(o));return t}}class rm{constructor(e){this._children=[],e&&this._insertChild(0,e)}[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(e){return'documentFragment'==e}_appendChild(e){return this._insertChild(this.childCount,e)}getChild(e){return this._children[e]}getChildIndex(e){return this._children.indexOf(e)}getChildren(){return this._children[Symbol.iterator]()}_insertChild(e,t){this._fireChange('children',this);let o=0;const n=le(t);for(const i of n)null!==i.parent&&i._remove(),i.parent=this,this._children.splice(e,0,i),e++,o++;return o}_removeChildren(e,t=1){this._fireChange('children',this);for(let o=e;o<e+t;o++)this._children[o].parent=null;return this._children.splice(e,t)}_fireChange(e,t){this.fire('change:'+e,t)}}f(rm,Ps);class am{constructor(e){this.document=e,this._cloneGroups=new Map}setSelection(e,t,o){this.document.selection._setTo(e,t,o)}setSelectionFocus(e,t){this.document.selection._setFocus(e,t)}createText(e){return new Qd(e)}createAttributeElement(e,t,o={}){const n=new Qc(e,t);return o.priority&&(n._priority=o.priority),o.id&&(n._id=o.id),n}createContainerElement(e,t){return new ec(e,t)}createEditableElement(e,t){const o=new Lc(e,t);return o._document=this.document,o}createEmptyElement(e,t){return new Yc(e,t)}createUIElement(e,t,o){const n=new im(e,t);return o&&(n.render=o),n}setAttribute(e,t,o){o._setAttribute(e,t)}removeAttribute(e,t){t._removeAttribute(e)}addClass(e,t){t._addClass(e)}removeClass(e,t){t._removeClass(e)}setStyle(e,t,o){hs(e)&&o===void 0&&(o=t),o._setStyle(e,t)}removeStyle(e,t){t._removeStyle(e)}setCustomProperty(e,t,o){o._setCustomProperty(e,t)}removeCustomProperty(e,t){return t._removeCustomProperty(e)}breakAttributes(e){return e instanceof Wc?this._breakAttributes(e):this._breakAttributesRange(e)}breakContainer(e){const t=e.parent;if(!t.is('containerElement'))throw new _s('view-writer-break-non-container-element: Trying to break an element which is not a container element.');if(!t.parent)throw new _s('view-writer-break-root: Trying to break root element.');if(e.isAtStart)return Wc.createBefore(t);if(!e.isAtEnd){const o=t._clone(!1);this.insert(Wc.createAfter(t),o);const n=new Uc(e,Wc.createAt(t,'end')),i=new Wc(o,0);this.move(n,i)}return Wc.createAfter(t)}mergeAttributes(e){const t=e.offset,o=e.parent;if(o.is('text'))return e;if(o.is('attributeElement')&&0===o.childCount){const e=o.parent,t=o.index;return o._remove(),this._removeFromClonedElementsGroup(o),this.mergeAttributes(new Wc(e,t))}const n=o.getChild(t-1),i=o.getChild(t);if(!n||!i)return e;if(n.is('text')&&i.is('text'))return ge(n,i);if(n.is('attributeElement')&&i.is('attributeElement')&&n.isSimilar(i)){const e=n.childCount;return n._appendChild(i.getChildren()),i._remove(),this._removeFromClonedElementsGroup(i),this.mergeAttributes(new Wc(n,e))}return e}mergeContainers(e){const t=e.nodeBefore,o=e.nodeAfter;if(!t||!o||!t.is('containerElement')||!o.is('containerElement'))throw new _s('view-writer-merge-containers-invalid-position: Element before and after given position cannot be merged.');const n=t.getChild(t.childCount-1),i=n instanceof Qd?Wc.createAt(n,'end'):Wc.createAt(t,'end');return this.move(Uc.createIn(o),Wc.createAt(t,'end')),this.remove(Uc.createOn(o)),i}insert(e,t){t=P(t)?[...t]:[t],he(t);const o=ce(e);if(!o)throw new _s('view-writer-invalid-position-container');const n=this._breakAttributes(e,!0),i=o._insertChild(n.offset,t);for(const o of t)this._addToClonedElementsGroup(o);const r=n.getShiftedBy(i),a=this.mergeAttributes(n);if(0===i)return new Uc(a,a);else{a.isEqual(n)||r.offset--;const e=this.mergeAttributes(r);return new Uc(a,e)}}remove(e){if(ke(e),e.isCollapsed)return new rm;const{start:t,end:o}=this._breakAttributesRange(e,!0),n=t.parent,i=o.offset-t.offset,r=n._removeChildren(t.offset,i);for(const t of r)this._removeFromClonedElementsGroup(t);const a=this.mergeAttributes(t);return e.start=a,e.end=Wc.createFromPosition(a),new rm(r)}clear(e,t){ke(e);const o=e.getWalker({direction:'backward',ignoreElementEnd:!0});for(const n of o){const o=n.item;let i;if(o.is('element')&&t.isSimilar(o))i=Uc.createOn(o);else if(!n.nextPosition.isAfter(e.start)&&o.is('textProxy')){const e=o.getAncestors().find((e)=>e.is('element')&&t.isSimilar(e));e&&(i=Uc.createIn(e))}i&&(i.end.isAfter(e.end)&&(i.end=e.end),i.start.isBefore(e.start)&&(i.start=e.start),this.remove(i))}}move(e,t){let o;if(t.isAfter(e.end)){t=this._breakAttributes(t,!0);const n=t.parent,i=n.childCount;e=this._breakAttributesRange(e,!0),o=this.remove(e),t.offset+=n.childCount-i}else o=this.remove(e);return this.insert(t,o)}wrap(e,t){if(!(t instanceof Qc))throw new _s('view-writer-wrap-invalid-attribute');if(ke(e),!e.isCollapsed)return this._wrapRange(e,t);else{let o=e.start;o.parent.is('element')&&!de(o.parent)&&(o=o.getLastMatchingPosition((e)=>e.item.is('uiElement'))),o=this._wrapPosition(o,t);const n=this.document.selection;return n.isCollapsed&&n.getFirstPosition().isEqual(e.start)&&this.setSelection(o),new Uc(o)}}unwrap(e,t){if(!(t instanceof Qc))throw new _s('view-writer-unwrap-invalid-attribute');if(ke(e),e.isCollapsed)return e;const{start:o,end:n}=this._breakAttributesRange(e,!0);if(n.isEqual(o.getShiftedBy(1))){const e=o.nodeAfter;if(!t.isSimilar(e)&&e instanceof Qc&&this._unwrapAttributeElement(t,e)){const e=this.mergeAttributes(o);e.isEqual(o)||n.offset--;const t=this.mergeAttributes(n);return new Uc(e,t)}}const i=o.parent,r=this._unwrapChildren(i,o.offset,n.offset,t),a=this.mergeAttributes(r.start);a.isEqual(r.start)||r.end.offset--;const s=this.mergeAttributes(r.end);return new Uc(a,s)}rename(e,t){const o=new ec(t,e.getAttributes());return this.insert(Wc.createAfter(e),o),this.move(Uc.createIn(e),Wc.createAt(o)),this.remove(Uc.createOn(e)),o}_wrapChildren(e,t,o,n){let r=t;const i=[];for(;r<o;){const t=e.getChild(r),o=t.is('text'),a=t.is('attributeElement'),s=t.is('emptyElement'),l=t.is('uiElement');if(o||s||l||a&&me(n,t)){const o=n._clone();t._remove(),o._appendChild(t),e._insertChild(r,o),this._addToClonedElementsGroup(o),i.push(new Wc(e,r))}else a&&this._wrapChildren(t,0,t.childCount,n);r++}let a=0;for(const r of i){if(r.offset-=a,r.offset==t)continue;const e=this.mergeAttributes(r);e.isEqual(r)||(a++,o--)}return Uc.createFromParentsAndOffsets(e,t,e,o)}_unwrapChildren(e,t,o,n){let r=t;const i=[];for(;r<o;){const t=e.getChild(r);if(t.isSimilar(n)){const n=t.getChildren(),a=t.childCount;t._remove(),e._insertChild(r,n),this._removeFromClonedElementsGroup(t),i.push(new Wc(e,r),new Wc(e,r+a)),r+=a,o+=a-1}else t.is('attributeElement')&&this._unwrapChildren(t,0,t.childCount,n),r++}let a=0;for(const r of i){if(r.offset-=a,r.offset==t||r.offset==o)continue;const e=this.mergeAttributes(r);e.isEqual(r)||(a++,o--)}return Uc.createFromParentsAndOffsets(e,t,e,o)}_wrapRange(e,t){if(fe(e)&&this._wrapAttributeElement(t,e.start.parent)){const t=e.start.parent,o=this.mergeAttributes(Wc.createAfter(t)),n=this.mergeAttributes(Wc.createBefore(t));return new Uc(n,o)}const{start:o,end:n}=this._breakAttributesRange(e,!0);if(n.isEqual(o.getShiftedBy(1))){const e=o.nodeAfter;if(e instanceof Qc&&this._wrapAttributeElement(t,e)){const e=this.mergeAttributes(o);e.isEqual(o)||n.offset--;const t=this.mergeAttributes(n);return new Uc(e,t)}}const i=o.parent,r=this._unwrapChildren(i,o.offset,n.offset,t),a=this._wrapChildren(i,r.start.offset,r.end.offset,t),s=this.mergeAttributes(a.start);s.isEqual(a.start)||a.end.offset--;const l=this.mergeAttributes(a.end);return new Uc(s,l)}_wrapPosition(e,t){if(t.isSimilar(e.parent))return ue(Wc.createFromPosition(e));e.parent.is('text')&&(e=pe(e));const o=this.createAttributeElement();o._priority=ns,o.isSimilar=()=>!1,e.parent._insertChild(e.offset,o);const n=new Uc(e,e.getShiftedBy(1));this.wrap(n,t);const i=new Wc(o.parent,o.index);o._remove();const r=i.nodeBefore,a=i.nodeAfter;return r instanceof Qd&&a instanceof Qd?ge(r,a):ue(i)}_wrapAttributeElement(e,t){if(!_e(e,t))return!1;if(e.name!==t.name||e.priority!==t.priority)return!1;for(const o of e.getAttributeKeys())if('class'!==o&&'style'!==o&&t.hasAttribute(o)&&t.getAttribute(o)!==e.getAttribute(o))return!1;for(const o of e.getStyleNames())if(t.hasStyle(o)&&t.getStyle(o)!==e.getStyle(o))return!1;for(const o of e.getAttributeKeys())'class'!==o&&'style'!==o&&(t.hasAttribute(o)||this.setAttribute(o,e.getAttribute(o),t));for(const o of e.getStyleNames())t.hasStyle(o)||this.setStyle(o,e.getStyle(o),t);for(const o of e.getClassNames())t.hasClass(o)||this.addClass(o,t);return!0}_unwrapAttributeElement(e,t){if(!_e(e,t))return!1;if(e.name!==t.name||e.priority!==t.priority)return!1;for(const o of e.getAttributeKeys())if('class'!==o&&'style'!==o&&(!t.hasAttribute(o)||t.getAttribute(o)!==e.getAttribute(o)))return!1;if(!t.hasClass(...e.getClassNames()))return!1;for(const o of e.getStyleNames())if(!t.hasStyle(o)||t.getStyle(o)!==e.getStyle(o))return!1;for(const o of e.getAttributeKeys())'class'!==o&&'style'!==o&&this.removeAttribute(o,t);return this.removeClass(Array.from(e.getClassNames()),t),this.removeStyle(Array.from(e.getStyleNames()),t),!0}_breakAttributesRange(e,t=!1){const o=e.start,n=e.end;if(ke(e),e.isCollapsed){const o=this._breakAttributes(e.start,t);return new Uc(o,o)}const i=this._breakAttributes(n,t),r=i.parent.childCount,a=this._breakAttributes(o,t);return i.offset+=i.parent.childCount-r,new Uc(a,i)}_breakAttributes(e,t=!1){const o=e.offset,n=e.parent;if(e.parent.is('emptyElement'))throw new _s('view-writer-cannot-break-empty-element');if(e.parent.is('uiElement'))throw new _s('view-writer-cannot-break-ui-element');if(!t&&n.is('text')&&be(n.parent))return Wc.createFromPosition(e);if(be(n))return Wc.createFromPosition(e);if(n.is('text'))return this._breakAttributes(pe(e),t);const i=n.childCount;if(o==i){const e=new Wc(n.parent,n.index+1);return this._breakAttributes(e,t)}if(0===o){const e=new Wc(n.parent,n.index);return this._breakAttributes(e,t)}else{const e=n.index+1,i=n._clone();n.parent._insertChild(e,i),this._addToClonedElementsGroup(i);const r=n.childCount-o,a=n._removeChildren(o,r);i._appendChild(a);const s=new Wc(n.parent,e);return this._breakAttributes(s,t)}}_addToClonedElementsGroup(e){if(!e.root.is('rootElement'))return;if(e.is('element'))for(const t of e.getChildren())this._addToClonedElementsGroup(t);const t=e.id;if(!t)return;let o=this._cloneGroups.get(t);o||(o=new Set,this._cloneGroups.set(t,o)),o.add(e),e._clonesGroup=o}_removeFromClonedElementsGroup(e){if(e.is('element'))for(const t of e.getChildren())this._removeFromClonedElementsGroup(t);const t=e.id;if(t){const o=this._cloneGroups.get(t);o&&(o.delete(e),0===o.size&&this._cloneGroups.delete(t))}}}const sm=[Qd,Qc,ec,Yc,im],lm=(e)=>{const t=e.createElement('br');return t.dataset.ckeFiller=!0,t},dm=(e)=>e.createTextNode('\xA0'),cm=7;let mm='';for(let n=0;n<cm;n++)mm+='\u200B';const um=new WeakMap;class pm{constructor(e,t){this.domDocuments=new Set,this.domConverter=e,this.markedAttributes=new Set,this.markedChildren=new Set,this.markedTexts=new Set,this.selection=t,this.isFocused=!1,this._inlineFiller=null,this._fakeSelectionContainer=null}markToSync(e,t){if('text'===e)this.domConverter.mapViewToDom(t.parent)&&this.markedTexts.add(t);else{if(!this.domConverter.mapViewToDom(t))return;if('attributes'===e)this.markedAttributes.add(t);else if('children'===e)this.markedChildren.add(t);else throw new _s('view-renderer-unknown-type: Unknown type passed to Renderer.markToSync.')}}render(){let e;for(const e of this.markedChildren)this._updateChildrenMappings(e);this._inlineFiller&&!this._isSelectionInInlineFiller()&&this._removeInlineFiller(),this._inlineFiller?e=this._getInlineFillerPosition():this._needsInlineFillerAtSelection()&&(e=this.selection.getFirstPosition(),this.markedChildren.add(e.parent));for(const e of this.markedAttributes)this._updateAttrs(e);for(const t of this.markedChildren)this._updateChildren(t,{inlineFillerPosition:e});for(const t of this.markedTexts)!this.markedChildren.has(t.parent)&&this.domConverter.mapViewToDom(t.parent)&&this._updateText(t,{inlineFillerPosition:e});if(e){const t=this.domConverter.viewPositionToDom(e),o=t.parent.ownerDocument;this._inlineFiller=we(t.parent)?t.parent:this._addInlineFiller(o,t.parent,t.offset)}else this._inlineFiller=null;this._updateSelection(),this._updateFocus(),this.markedTexts.clear(),this.markedAttributes.clear(),this.markedChildren.clear()}_updateChildrenMappings(e){const t=this.domConverter.mapViewToDom(e);if(t){const t=this._diffChildren(e),o=this._findReplaceActions(t.actions,t.actualDomChildren,t.expectedDomChildren);if(-1!==o.indexOf('replace')){const n={equal:0,insert:0,delete:0};for(const i of o)if('replace'===i){const o=n.equal+n.insert,i=n.equal+n.delete,r=e.getChild(o);r&&!r.is('uiElement')&&this._updateElementMappings(r,t.actualDomChildren[i]),Ee(t.expectedDomChildren[o]),n.equal++}else n[i]++}}}_updateElementMappings(e,t){const o=this.domConverter.mapDomToView(t);o&&(!o||o.isSimilar(e))||this.markedAttributes.add(e),this.domConverter.unbindDomElement(t),this.domConverter.bindElements(t,e),this.markedChildren.add(e)}_addInlineFiller(e,t,o){const n=t instanceof Array?t:t.childNodes,i=n[o];if(Se(i))return i.data=mm+i.data,i;else{const i=e.createTextNode(mm);return Array.isArray(t)?n.splice(o,0,i):Pe(t,o,i),i}}_getInlineFillerPosition(){const e=this.selection.getFirstPosition();return e.parent.is('text')?Wc.createBefore(this.selection.getFirstPosition().parent):e}_isSelectionInInlineFiller(){if(1!=this.selection.rangeCount||!this.selection.isCollapsed)return!1;const e=this.selection.getFirstPosition(),t=this.domConverter.viewPositionToDom(e);return!!(t&&Se(t.parent)&&we(t.parent))}_removeInlineFiller(){const e=this._inlineFiller;if(!we(e))throw new _s('view-renderer-filler-was-lost: The inline filler node was lost.');ve(e)?e.parentNode.removeChild(e):e.data=e.data.substr(cm),this._inlineFiller=null}_needsInlineFillerAtSelection(){if(1!=this.selection.rangeCount||!this.selection.isCollapsed)return!1;const e=this.selection.getFirstPosition(),t=e.parent,o=e.offset;if(!this.domConverter.mapViewToDom(t.root))return!1;if(!t.is('element'))return!1;if(!De(t))return!1;if(o===t.getFillerOffset())return!1;const n=e.nodeBefore,i=e.nodeAfter;return!(n instanceof Qd||i instanceof Qd)}_updateText(e,t){const o=this.domConverter.findCorrespondingDomText(e),n=this.domConverter.viewToDom(e,o.ownerDocument),i=o.data;let r=n.data;const a=t.inlineFillerPosition;if(a&&a.parent==e.parent&&a.offset==e.index&&(r=mm+r),i!=r){const e=Ie(i,r);for(const t of e)'insert'===t.type?o.insertData(t.index,t.values.join('')):o.deleteData(t.index,t.howMany)}}_updateAttrs(e){const t=this.domConverter.mapViewToDom(e);if(t){const o=Array.from(t.attributes).map((e)=>e.name),n=e.getAttributeKeys();for(const o of n)t.setAttribute(o,e.getAttribute(o));for(const n of o)e.hasAttribute(n)||t.removeAttribute(n)}}_updateChildren(e,t){const o=this.domConverter.mapViewToDom(e);if(o){const n=t.inlineFillerPosition,r=this._getElementExpectedChildren(e,o,{bind:!0,inlineFillerPosition:n}),a=this._diffChildren(e,n),s=a.actualDomChildren;let l=0;const i=new Set;for(const e of a.actions)'insert'===e?(Pe(o,l,r[l]),l++):'delete'===e?(i.add(s[l]),Ee(s[l])):(this._markDescendantTextToSync(this.domConverter.domToView(r[l])),l++);for(const e of i)e.parentNode||this.domConverter.unbindDomElement(e)}}_diffChildren(e,t=null){const o=this.domConverter.mapViewToDom(e),n=o.childNodes,i=this._getElementExpectedChildren(e,o,{withChildren:!1,inlineFillerPosition:t});return{actions:Te(n,i,Be.bind(null,this.domConverter.blockFiller)),actualDomChildren:n,expectedDomChildren:i}}_getElementExpectedChildren(e,t,o){const n=Array.from(this.domConverter.viewChildrenToDom(e,t.ownerDocument,o)),i=o.inlineFillerPosition;return i&&i.parent===e&&this._addInlineFiller(t.ownerDocument,n,i.offset),n}_findReplaceActions(e,t,o){if(-1===e.indexOf('insert')||-1===e.indexOf('delete'))return e;let n=[],i=[],r=[];const a={equal:0,insert:0,delete:0};for(const s of e)'insert'===s?r.push(o[a.equal+a.insert]):'delete'===s?i.push(t[a.equal+a.delete]):(n=n.concat(Te(i,r,Me).map((e)=>'equal'===e?'replace':e)),n.push('equal'),i=[],r=[]),a[s]++;return n.concat(Te(i,r,Me).map((e)=>'equal'===e?'replace':e))}_markDescendantTextToSync(e){if(e)if(e.is('text'))this.markedTexts.add(e);else if(e.is('element'))for(const t of e.getChildren())this._markDescendantTextToSync(t)}_updateSelection(){if(0===this.selection.rangeCount)return this._removeDomSelection(),void this._removeFakeSelection();const e=this.domConverter.mapViewToDom(this.selection.editableElement);this.isFocused&&e&&(this.selection.isFake?this._updateFakeSelection(e):(this._removeFakeSelection(),this._updateDomSelection(e)))}_updateFakeSelection(e){const t=e.ownerDocument;let o=this._fakeSelectionContainer;o||(this._fakeSelectionContainer=o=t.createElement('div'),Object.assign(o.style,{position:'fixed',top:0,left:'-9999px',width:'42px'}),o.appendChild(t.createTextNode('\xA0'))),o.parentElement||e.appendChild(o),o.firstChild.data=this.selection.fakeSelectionLabel||'\xA0';const n=t.getSelection(),i=t.createRange();n.removeAllRanges(),i.selectNodeContents(o),n.addRange(i),this.domConverter.bindFakeSelection(o,this.selection)}_updateDomSelection(e){const t=e.ownerDocument.defaultView.getSelection();if(this._domSelectionNeedsUpdate(t)){const o=this.domConverter.viewPositionToDom(this.selection.anchor),n=this.domConverter.viewPositionToDom(this.selection.focus);e.focus(),t.collapse(o.parent,o.offset),t.extend(n.parent,n.offset)}}_domSelectionNeedsUpdate(e){if(!this.domConverter.isDomSelectionCorrect(e))return!0;const t=e&&this.domConverter.domSelectionToView(e);return!(t&&this.selection.isEqual(t))&&(this.selection.isCollapsed||!this.selection.isSimilar(t))}_removeDomSelection(){for(const e of this.domDocuments){const t=e.getSelection();if(t.rangeCount){const t=e.activeElement,o=this.domConverter.mapDomToView(t);t&&o&&e.getSelection().removeAllRanges()}}}_removeFakeSelection(){const e=this._fakeSelectionContainer;e&&e.remove()}_updateFocus(){if(this.isFocused){const e=this.selection.editableElement;e&&this.domConverter.focus(e)}}}f(pm,Mc);var gm={window,document},fm=function(e){return!!e&&1===e.nodeType&&cs(e)&&!hs(e)};class hm{constructor(e={}){this.blockFiller=e.blockFiller||lm,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(e,t){this._fakeSelectionMapping.set(e,new Hc(t))}fakeSelectionToView(e){return this._fakeSelectionMapping.get(e)}bindElements(e,t){this._domToViewMapping.set(e,t),this._viewToDomMapping.set(t,e)}unbindDomElement(e){const t=this._domToViewMapping.get(e);if(t){this._domToViewMapping.delete(e),this._viewToDomMapping.delete(t);for(const t of Array.from(e.childNodes))this.unbindDomElement(t)}}bindDocumentFragments(e,t){this._domToViewMapping.set(e,t),this._viewToDomMapping.set(t,e)}viewToDom(e,t,o={}){if(e.is('text')){const o=this._processDataFromViewText(e);return t.createTextNode(o)}else{if(this.mapViewToDom(e))return this.mapViewToDom(e);let n;if(e.is('documentFragment'))n=t.createDocumentFragment(),o.bind&&this.bindDocumentFragments(n,e);else{if(e.is('uiElement'))return n=e.render(t),o.bind&&this.bindElements(n,e),n;n=t.createElement(e.name),o.bind&&this.bindElements(n,e);for(const t of e.getAttributeKeys())n.setAttribute(t,e.getAttribute(t))}if(o.withChildren||void 0===o.withChildren)for(const i of this.viewChildrenToDom(e,t,o))n.appendChild(i);return n}}*viewChildrenToDom(e,t,o={}){const n=e.getFillerOffset&&e.getFillerOffset();let i=0;for(const r of e.getChildren())n===i&&(yield this.blockFiller(t)),yield this.viewToDom(r,t,o),i++;n===i&&(yield this.blockFiller(t))}viewRangeToDom(e){const t=this.viewPositionToDom(e.start),o=this.viewPositionToDom(e.end),n=document.createRange();return n.setStart(t.parent,t.offset),n.setEnd(o.parent,o.offset),n}viewPositionToDom(e){const t=e.parent;if(t.is('text')){const o=this.findCorrespondingDomText(t);if(!o)return null;let n=e.offset;return we(o)&&(n+=cm),{parent:o,offset:n}}else{let o,n,i;if(0===e.offset){if(o=this.mapViewToDom(t),!o)return null;i=o.childNodes[0]}else{const t=e.nodeBefore;if(n=t.is('text')?this.findCorrespondingDomText(t):this.mapViewToDom(e.nodeBefore),!n)return null;o=n.parentNode,i=n.nextSibling}if(Se(i)&&we(i))return{parent:i,offset:cm};const r=n?Le(n)+1:0;return{parent:o,offset:r}}}domToView(e,t={}){if(xe(e,this.blockFiller))return null;const o=this.getParentUIElement(e,this._domToViewMapping);if(o)return o;if(Se(e)){if(ve(e))return null;else{const t=this._processDataFromDomText(e);return''===t?null:new Qd(t)}}else if(this.isComment(e))return null;else{if(this.mapDomToView(e))return this.mapDomToView(e);let o;if(this.isDocumentFragment(e))o=new rm,t.bind&&this.bindDocumentFragments(e,o);else{const n=t.keepOriginalCase?e.tagName:e.tagName.toLowerCase();o=new Zd(n),t.bind&&this.bindElements(e,o);const r=e.attributes;for(let e=r.length-1;0<=e;e--)o._setAttribute(r[e].name,r[e].value)}if(t.withChildren||void 0===t.withChildren)for(const n of this.domChildrenToView(e,t))o._appendChild(n);return o}}*domChildrenToView(e,t={}){for(let o=0;o<e.childNodes.length;o++){const n=e.childNodes[o],i=this.domToView(n,t);null!==i&&(yield i)}}domSelectionToView(e){if(1===e.rangeCount){let t=e.getRangeAt(0).startContainer;Se(t)&&(t=t.parentNode);const o=this.fakeSelectionToView(t);if(o)return o}const t=this.isDomSelectionBackward(e),o=[];for(let t=0;t<e.rangeCount;t++){const n=e.getRangeAt(t),i=this.domRangeToView(n);i&&o.push(i)}return new Hc(o,{backward:t})}domRangeToView(e){const t=this.domPositionToView(e.startContainer,e.startOffset),o=this.domPositionToView(e.endContainer,e.endOffset);return t&&o?new Uc(t,o):null}domPositionToView(e,t){if(xe(e,this.blockFiller))return this.domPositionToView(e.parentNode,Le(e));const o=this.mapDomToView(e);if(o&&o.is('uiElement'))return Wc.createBefore(o);if(Se(e)){if(ve(e))return this.domPositionToView(e.parentNode,Le(e));const o=this.findCorrespondingViewText(e);let n=t;return o?(we(e)&&(n-=cm,n=0>n?0:n),new Wc(o,n)):null}if(0===t){const t=this.mapDomToView(e);if(t)return new Wc(t,0)}else{const o=e.childNodes[t-1],n=Se(o)?this.findCorrespondingViewText(o):this.mapDomToView(o);if(n&&n.parent)return new Wc(n.parent,n.index+1)}return null}mapDomToView(e){return this.getParentUIElement(e)||this._domToViewMapping.get(e)}findCorrespondingViewText(e){if(ve(e))return null;const t=this.getParentUIElement(e);if(t)return t;const o=e.previousSibling;if(o){if(!this.isElement(o))return null;const e=this.mapDomToView(o);if(e){const t=e.nextSibling;return t instanceof Qd?e.nextSibling:null}}else{const t=this.mapDomToView(e.parentNode);if(t){const e=t.getChild(0);return e instanceof Qd?e:null}}return null}mapViewToDom(e){return this._viewToDomMapping.get(e)}findCorrespondingDomText(e){const t=e.previousSibling;return t&&this.mapViewToDom(t)?this.mapViewToDom(t).nextSibling:!t&&e.parent&&this.mapViewToDom(e.parent)?this.mapViewToDom(e.parent).childNodes[0]:null}focus(e){const t=this.mapViewToDom(e);if(t&&t.ownerDocument.activeElement!==t){const{scrollX:e,scrollY:o}=gm.window,n=[];We(t,(e)=>{const{scrollLeft:t,scrollTop:o}=e;n.push([t,o])}),t.focus(),We(t,(e)=>{const[t,o]=n.shift();e.scrollLeft=t,e.scrollTop=o}),gm.window.scrollTo(e,o)}}isElement(e){return e&&e.nodeType==Node.ELEMENT_NODE}isDocumentFragment(e){return e&&e.nodeType==Node.DOCUMENT_FRAGMENT_NODE}isComment(e){return e&&e.nodeType==Node.COMMENT_NODE}isDomSelectionBackward(e){if(e.isCollapsed)return!1;const t=document.createRange();t.setStart(e.anchorNode,e.anchorOffset),t.setEnd(e.focusNode,e.focusOffset);const o=t.collapsed;return t.detach(),o}getParentUIElement(e){const t=ze(e);for(t.pop();t.length;){const e=t.pop(),o=this._domToViewMapping.get(e);if(o&&o.is('uiElement'))return o}return null}isDomSelectionCorrect(e){return this._isDomSelectionPositionCorrect(e.anchorNode,e.anchorOffset)&&this._isDomSelectionPositionCorrect(e.focusNode,e.focusOffset)}_isDomSelectionPositionCorrect(e,t){if(Se(e)&&we(e)&&t<cm)return!1;if(this.isElement(e)&&we(e.childNodes[t]))return!1;const o=this.mapDomToView(e);return!(o&&o.is('uiElement'))}_processDataFromViewText(e){let t=e.data;if(e.getAncestors().some((e)=>this.preElements.includes(e.name)))return t;if(' '==t.charAt(0)){const o=this._getTouchingViewTextNode(e,!1),n=o&&this._nodeEndsWithSpace(o);(n||!o)&&(t='\xA0'+t.substr(1))}if(' '==t.charAt(t.length-1)){const o=this._getTouchingViewTextNode(e,!0);o||(t=t.substr(0,t.length-1)+'\xA0')}return t.replace(/ {2}/g,' \xA0')}_nodeEndsWithSpace(e){if(e.getAncestors().some((e)=>this.preElements.includes(e.name)))return!1;const t=this._processDataFromViewText(e);return' '==t.charAt(t.length-1)}_processDataFromDomText(e){let t=e.data;if(qe(e,this.preElements))return ye(e);t=t.replace(/[ \n\t\r]{1,}/g,' ');const o=this._getTouchingInlineDomNode(e,!1),n=this._getTouchingInlineDomNode(e,!0),i=this._checkShouldLeftTrimDomText(o),r=this._checkShouldRightTrimDomText(e,n);return i&&(t=t.replace(/^ /,'')),r&&(t=t.replace(/ $/,'')),t=ye(new Text(t)),t=t.replace(/ \u00A0/g,'  '),i&&(t=t.replace(/^\u00A0/,' ')),(!Se(n)||'\xA0'==n.data.charAt(0))&&(t=t.replace(/\u00A0( *)$/,' $1')),t}_checkShouldLeftTrimDomText(e){return!e||!!fm(e)||/[^\S\u00A0]/.test(e.data.charAt(e.data.length-1))}_checkShouldRightTrimDomText(e,t){return!t&&!we(e)}_getTouchingViewTextNode(e,t){const o=new qc({startPosition:t?Wc.createAfter(e):Wc.createBefore(e),direction:t?'forward':'backward'});for(const n of o){if(n.item.is('containerElement'))return null;if(n.item.is('br'))return null;if(n.item.is('textProxy'))return n.item}return null}_getTouchingInlineDomNode(e,t){if(!e.parentNode)return null;const o=t?'nextNode':'previousNode',n=e.ownerDocument,i=ze(e)[0],r=n.createTreeWalker(i,NodeFilter.SHOW_TEXT|NodeFilter.SHOW_ELEMENT,{acceptNode(e){return Se(e)?NodeFilter.FILTER_ACCEPT:'BR'==e.tagName?NodeFilter.FILTER_ACCEPT:NodeFilter.FILTER_SKIP}});r.currentNode=e;const a=r[o]();if(null!==a){const t=je(e,a);if(t&&!qe(e,this.blockElements,t)&&!qe(a,this.blockElements,t))return a}return null}}const bm=Rc({},Ps,{listenTo(e,...t){if(Oe(e)||Ue(e)){const o=this._getProxyEmitter(e)||new _m(e);o.attach(...t),e=o}Ps.listenTo.call(this,e,...t)},stopListening(e,t,o){if(Oe(e)||Ue(e)){const t=this._getProxyEmitter(e);if(!t)return;e=t}Ps.stopListening.call(this,e,t,o),e instanceof _m&&e.detach(t)},_getProxyEmitter(e){return r(this,He(e))}});var km=bm;class _m{constructor(e){a(this,He(e)),this._domNode=e}}Rc(_m.prototype,Ps,{attach(e,t,o={}){if(!(this._domListeners&&this._domListeners[e])){const t=this._createDomListener(e,!!o.useCapture);this._domNode.addEventListener(e,t,!!o.useCapture),this._domListeners||(this._domListeners={}),this._domListeners[e]=t}},detach(e){let t;!this._domListeners[e]||(t=this._events[e])&&t.callbacks.length||this._domListeners[e].removeListener()},_createDomListener(e,t){const o=(t)=>{this.fire(e,t)};return o.removeListener=()=>{this._domNode.removeEventListener(e,o,t),delete this._domListeners[e]},o}});class wm{constructor(e){this.view=e,this.document=e.document,this.isEnabled=!1}enable(){this.isEnabled=!0}disable(){this.isEnabled=!1}destroy(){this.disable(),this.stopListening()}}f(wm,km);Ke.prototype.add=Ke.prototype.push=function(e){return this.__data__.set(e,'__lodash_hash_undefined__'),this},Ke.prototype.has=function(e){return this.__data__.has(e)};var vm=Ke,ym=function(e,t){for(var o=-1,n=e.length;++o<n;)if(t(e[o],o,e))return!0;return!1},xm=function(e,t,o,n,i,r){var a=i&2,s=e.length,l=t.length;if(s!=l&&!(a&&l>s))return!1;var d=r.get(e);if(d)return d==t;var c=-1,m=!0,u=i&1?new vm:void 0;for(r.set(e,t);++c<s;){var p=e[c],g=t[c];if(n)var f=a?n(g,p,c,t,e,r):n(p,g,c,e,t,r);if(void 0!==f){if(f)continue;m=!1;break}if(u){if(!ym(t,function(e,t){if(!u.has(t)&&(p===e||o(p,e,n,i,r)))return u.add(t)})){m=!1;break}}else if(!(p===g||o(p,g,n,i,r))){m=!1;break}}return r['delete'](e),m},Cm=Rd?Rd.prototype:void 0,Am=Cm?Cm.valueOf:void 0,Tm=function(e,t,o,n,i,r,a){switch(o){case'[object DataView]':if(e.byteLength!=t.byteLength||e.byteOffset!=t.byteOffset)return!1;e=e.buffer,t=t.buffer;case'[object ArrayBuffer]':return!!(e.byteLength==t.byteLength&&n(new _d(e),new _d(t)));case'[object Boolean]':case'[object Date]':return+e==+t;case'[object Error]':return e.name==t.name&&e.message==t.message;case'[object Number]':return e==+e?e==+t:t!=+t;case'[object RegExp]':case'[object String]':return e==t+'';case'[object Map]':var s=Cd;case'[object Set]':var l=r&2;if(s||(s=Sd),e.size!=t.size&&!l)return!1;var d=a.get(e);return d?d==t:(r|=1,a.set(e,t),xm(s(e),s(t),n,i,r,a));case'[object Symbol]':if(Am)return Am.call(e)==Am.call(t);}return!1},Pm=2,Em={};Em['[object Float32Array]']=Em['[object Float64Array]']=Em['[object Int8Array]']=Em['[object Int16Array]']=Em['[object Int32Array]']=Em['[object Uint8Array]']=Em['[object Uint8ClampedArray]']=Em['[object Uint16Array]']=Em['[object Uint32Array]']=!0,Em['[object Arguments]']=Em['[object Array]']=Em['[object ArrayBuffer]']=Em['[object Boolean]']=Em['[object DataView]']=Em['[object Date]']=Em['[object Error]']=Em['[object Function]']=Em['[object Map]']=Em['[object Number]']=Em['[object Object]']=Em['[object RegExp]']=Em['[object Set]']=Em['[object String]']=Em['[object WeakMap]']=!1;var Sm=Object.prototype,Om=Sm.toString,Im=function(e){return cs(e)&&wl(e.length)&&!!Em[Om.call(e)]},Rm='[object Arguments]',Vm='[object Array]',Fm='[object Object]',Nm=Object.prototype,Dm=Nm.hasOwnProperty,Mm=function(e,t,o,n,i,r){var a=Sl(e),s=Sl(t),l=Vm,d=Vm;a||(l=gd(e),l=l==Rm?Fm:l),s||(d=gd(t),d=d==Rm?Fm:d);var c=l==Fm&&!ds(e),m=d==Fm&&!ds(t),u=l==d;if(u&&!c)return r||(r=new al),a||Im(e)?xm(e,t,o,n,i,r):Tm(e,t,l,o,n,i,r);if(!(i&2)){var p=c&&Dm.call(e,'__wrapped__'),g=m&&Dm.call(t,'__wrapped__');if(p||g){var f=p?e.value():e,h=g?t.value():t;return r||(r=new al),o(f,h,n,i,r)}}return!!u&&(r||(r=new al),Ge(e,t,o,n,i,r))},Bm=$e,Lm=function(e,t,o){o='function'==typeof o?o:void 0;var n=o?o(e,t):void 0;return n===void 0?Bm(e,t,o):!!n};class zm extends wm{constructor(e){super(e),this._config={childList:!0,characterData:!0,characterDataOldValue:!0,subtree:!0},this.domConverter=e.domConverter,this.renderer=e._renderer,this._domElements=[],this._mutationObserver=new window.MutationObserver(this._onMutations.bind(this))}flush(){this._onMutations(this._mutationObserver.takeRecords())}observe(e){this._domElements.push(e),this.isEnabled&&this._mutationObserver.observe(e,this._config)}enable(){super.enable();for(const e of this._domElements)this._mutationObserver.observe(e,this._config)}disable(){super.disable(),this._mutationObserver.disconnect()}destroy(){super.destroy(),this._mutationObserver.disconnect()}_onMutations(e){function t(e,t){if(!Array.isArray(e))return e===t||!!(e.is('text')&&t.is('text'))&&e.data===t.data}if(0===e.length)return;const o=this.domConverter,n=new Map,i=new Set;for(const t of e)if('childList'===t.type){const e=o.mapDomToView(t.target);if(e&&e.is('uiElement'))continue;e&&!this._isBogusBrMutation(t)&&i.add(e)}for(const t of e){const e=o.mapDomToView(t.target);if(!(e&&e.is('uiElement'))&&'characterData'===t.type){const e=o.findCorrespondingViewText(t.target);e&&!i.has(e.parent)?n.set(e,{type:'text',oldText:e.data,newText:ye(t.target),node:e}):!e&&we(t.target)&&i.add(o.mapDomToView(t.target.parentNode))}}const r=[];for(const t of n.values())this.renderer.markToSync('text',t.node),r.push(t);for(const n of i){const e=o.mapViewToDom(n),i=Array.from(n.getChildren()),a=Array.from(o.domChildrenToView(e,{withChildren:!1}));Lm(i,a,t)||(this.renderer.markToSync('children',n),r.push({type:'children',oldChildren:i,newChildren:a,node:n}))}const a=e[0].target.ownerDocument.getSelection();let s=null;if(a&&a.anchorNode){const e=o.domPositionToView(a.anchorNode,a.anchorOffset),t=o.domPositionToView(a.focusNode,a.focusOffset);e&&t&&(s=new Hc(e),s.setFocus(t))}this.document.fire('mutations',r,s),this.view.render()}_isBogusBrMutation(e){let t=null;return null===e.nextSibling&&0===e.removedNodes.length&&1==e.addedNodes.length&&(t=this.domConverter.domToView(e.addedNodes[0],{withChildren:!1})),t&&t.is('element','br')}}class jm{constructor(e,t,o){this.view=e,this.document=e.document,this.domEvent=t,this.domTarget=t.target,Rc(this,o)}get target(){return this.view.domConverter.mapDomToView(this.domTarget)}preventDefault(){this.domEvent.preventDefault()}stopPropagation(){this.domEvent.stopPropagation()}}class qm extends wm{constructor(e){super(e),this.useCapture=!1}observe(e){const t='string'==typeof this.domEventType?[this.domEventType]:this.domEventType;t.forEach((t)=>{this.listenTo(e,t,(e,t)=>{this.isEnabled&&this.onDomEvent(t)},{useCapture:this.useCapture})})}fire(e,t,o){this.isEnabled&&this.document.fire(e,new jm(this.view,t,o))}}class Wm extends qm{constructor(e){super(e),this.domEventType=['keydown','keyup']}onDomEvent(e){this.fire(e.type,e,{keyCode:e.keyCode,altKey:e.altKey,ctrlKey:e.ctrlKey||e.metaKey,shiftKey:e.shiftKey,get keystroke(){return te(this)}})}}var Um=Date.now,Hm=Um,Km='Expected a function',Gm=is,$m=rs,Jm=Je;class Qm extends wm{constructor(e){super(e),this._fireSelectionChangeDoneDebounced=Jm((e)=>this.document.fire('selectionChangeDone',e),200)}observe(){const e=this.document;e.on('keydown',(t,o)=>{const n=e.selection;n.isFake&&Qe(o.keyCode)&&this.isEnabled&&(o.preventDefault(),this._handleSelectionMove(o.keyCode))},{priority:'lowest'})}destroy(){super.destroy(),this._fireSelectionChangeDoneDebounced.cancel()}_handleSelectionMove(e){const t=this.document.selection,o=new Hc(t.getRanges(),{backward:t.isBackward,fake:!1});(e==nm.arrowleft||e==nm.arrowup)&&o.setTo(o.getFirstPosition()),(e==nm.arrowright||e==nm.arrowdown)&&o.setTo(o.getLastPosition());const n={oldSelection:t,newSelection:o,domSelection:null};this.document.fire('selectionChange',n),this._fireSelectionChangeDoneDebounced(n)}}const Ym={error(e,t){console.error(n(e),t)},warn(e,t){console.warn(n(e),t)}};var Xm=Ym;class Zm extends wm{constructor(e){super(e),this.mutationObserver=e.getObserver(zm),this.selection=this.document.selection,this.domConverter=e.domConverter,this._documents=new WeakSet,this._fireSelectionChangeDoneDebounced=Jm((e)=>this.document.fire('selectionChangeDone',e),200),this._clearInfiniteLoopInterval=setInterval(()=>this._clearInfiniteLoop(),1e3),this._loopbackCounter=0}observe(e){const t=e.ownerDocument;this._documents.has(t)||(this.listenTo(t,'selectionchange',()=>{this._handleSelectionChange(t)}),this._documents.add(t))}destroy(){super.destroy(),clearInterval(this._clearInfiniteLoopInterval),this._fireSelectionChangeDoneDebounced.cancel()}_handleSelectionChange(e){if(this.isEnabled&&(this.document.isFocused||this.document.isReadOnly)){this.mutationObserver.flush();const t=e.defaultView.getSelection(),o=this.domConverter.domSelectionToView(t);if(!(this.selection.isEqual(o)&&this.domConverter.isDomSelectionCorrect(t))){if(60<++this._loopbackCounter)return void Xm.warn('selectionchange-infinite-loop: Selection change observer detected an infinite rendering loop.');if(this.selection.isSimilar(o))this.view.render();else{const e={oldSelection:this.selection,newSelection:o,domSelection:t};this.document.fire('selectionChange',e),this._fireSelectionChangeDoneDebounced(e)}}}}_clearInfiniteLoop(){this._loopbackCounter=0}}class eu extends qm{constructor(e){super(e),this.domEventType=['focus','blur'],this.useCapture=!0;const t=this.document;t.on('focus',()=>{t.isFocused=!0,this._renderTimeoutId=setTimeout(()=>e.render(),50)}),t.on('blur',(o,n)=>{const i=t.selection.editableElement;(null===i||i===n.target)&&(t.isFocused=!1,e.render())})}onDomEvent(e){this.fire(e.type,e)}destroy(){this._renderTimeoutId&&clearTimeout(this._renderTimeoutId),super.destroy()}}class tu extends qm{constructor(e){super(e),this.domEventType=['compositionstart','compositionupdate','compositionend'];const t=this.document;t.on('compositionstart',()=>{t.isComposing=!0}),t.on('compositionend',()=>{t.isComposing=!1})}onDomEvent(e){this.fire(e.type,e)}}class ou{constructor(e){const t=Ye(e);if(Object.defineProperty(this,'_source',{value:e._source||e,writable:!0,enumerable:!1}),fm(e)||t){const o=t?e.startContainer:e;o.ownerDocument&&o.ownerDocument.body.contains(o)||Xm.warn('rect-source-not-in-dom: The source of this rect does not belong to any rendered DOM tree.',{source:e}),t?Ze(this,ou.getDomRangeRects(e)[0]):Ze(this,e.getBoundingClientRect())}else if(Ue(e)){const{innerWidth:t,innerHeight:o}=e;Ze(this,{top:0,right:t,bottom:o,left:0,width:t,height:o})}else Ze(this,e)}clone(){return new ou(this)}moveTo(e,t){return this.top=t,this.right=e+this.width,this.bottom=t+this.height,this.left=e,this}moveBy(e,t){return this.top+=t,this.right+=e,this.left+=e,this.bottom+=t,this}getIntersection(e){const t={top:is(this.top,e.top),right:rs(this.right,e.right),bottom:rs(this.bottom,e.bottom),left:is(this.left,e.left)};return t.width=t.right-t.left,t.height=t.bottom-t.top,0>t.width||0>t.height?null:new ou(t)}getIntersectionArea(e){const t=this.getIntersection(e);return t?t.getArea():0}getArea(){return this.width*this.height}getVisible(){const e=this._source;let t=this.clone();if(!et(e))for(let o=e.parentNode||e.commonAncestorContainer;o&&!et(o);){const e=new ou(o),n=t.getIntersection(e);if(n)n.getArea()<t.getArea()&&(t=n);else return null;o=o.parentNode}return t}isEqual(e){for(const t of nu)if(this[t]!==e[t])return!1;return!0}contains(e){const t=this.getIntersection(e);return!!(t&&t.isEqual(e))}excludeScrollbarsAndBorders(){const e=this._source;let t,o;if(Ue(e))t=e.innerWidth-e.document.documentElement.clientWidth,o=e.innerHeight-e.document.documentElement.clientHeight;else{const n=Xe(this._source);t=e.offsetWidth-e.clientWidth,o=e.offsetHeight-e.clientHeight,this.moveBy(n.left,n.top)}return this.width-=t,this.right-=t,this.height-=o,this.bottom-=o,this}static getDomRangeRects(e){const t=[],o=Array.from(e.getClientRects());if(o.length)for(const e of o)t.push(new ou(e));else{let o=e.startContainer;Se(o)&&(o=o.parentNode);const n=new ou(o.getBoundingClientRect());n.right=n.left,n.width=0,t.push(n)}return t}}const nu=['top','right','bottom','left','width','height'];Object.assign({},{scrollViewportToShowTarget:tt,scrollAncestorsToShowTarget:function(e){const t=ct(e);it(t,()=>new ou(e))}});class iu{constructor(){this.document=new $c,this.domConverter=new hm,this._renderer=new pm(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 am(this.document),this.addObserver(zm),this.addObserver(Zm),this.addObserver(eu),this.addObserver(Wm),this.addObserver(Qm),this.addObserver(tu),Ce(this),re(this),this.on('render',()=>{this._render()})}attachDomRoot(e,t='main'){const o=this.document.getRoot(t);o._name=e.tagName.toLowerCase(),this.domRoots.set(t,e),this.domConverter.bindElements(e,o),this._renderer.markToSync('children',o),this._renderer.domDocuments.add(e.ownerDocument),o.on('change:children',(e,t)=>this._renderer.markToSync('children',t)),o.on('change:attributes',(e,t)=>this._renderer.markToSync('attributes',t)),o.on('change:text',(e,t)=>this._renderer.markToSync('text',t));for(const o of this._observers.values())o.observe(e,t)}getDomRoot(e='main'){return this.domRoots.get(e)}addObserver(e){let t=this._observers.get(e);if(t)return t;t=new e(this),this._observers.set(e,t);for(const[o,n]of this.domRoots)t.observe(n,o);return t.enable(),t}getObserver(e){return this._observers.get(e)}disableObservers(){for(const e of this._observers.values())e.disable()}enableObservers(){for(const e of this._observers.values())e.enable()}scrollToTheSelection(){const e=this.document.selection.getFirstRange();e&&tt({target:this.domConverter.viewRangeToDom(e),viewportOffset:20})}focus(){if(!this.document.isFocused){const e=this.document.selection.editableElement;e?(this.domConverter.focus(e),this.render()):Xm.warn('view-focus-no-selection: There is no selection in any editable to focus.')}}change(e){if(this._renderingInProgress||this._postFixersInProgress)throw new _s('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.');return this._ongoingChange?void e(this._writer):void(this._ongoingChange=!0,e(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 e of this._observers.values())e.destroy();this.stopListening()}_render(){this._renderingInProgress=!0,this.disableObservers(),this._renderer.render(),this.enableObservers(),this._renderingInProgress=!1}}f(iu,Mc);class ru{constructor(e){this.parent=null,this._attrs=ut(e)}get index(){let e;if(!this.parent)return null;if(null===(e=this.parent.getChildIndex(this)))throw new _s('model-node-not-found-in-parent: The node\'s parent does not contain this node.');return e}get startOffset(){let e;if(!this.parent)return null;if(null===(e=this.parent.getChildStartOffset(this)))throw new _s('model-node-not-found-in-parent: The node\'s parent does not contain this node.');return e}get offsetSize(){return 1}get endOffset(){return this.parent?this.startOffset+this.offsetSize:null}get nextSibling(){const e=this.index;return null!==e&&this.parent.getChild(e+1)||null}get previousSibling(){const e=this.index;return null!==e&&this.parent.getChild(e-1)||null}get root(){let e=this;for(;e.parent;)e=e.parent;return e}get document(){return this.root==this?null:this.root.document||null}getPath(){const e=[];for(let t=this;t.parent;)e.unshift(t.startOffset),t=t.parent;return e}getAncestors(e={includeSelf:!1,parentFirst:!1}){const t=[];for(let o=e.includeSelf?this:this.parent;o;)t[e.parentFirst?'push':'unshift'](o),o=o.parent;return t}getCommonAncestor(e,t={}){const o=this.getAncestors(t),n=e.getAncestors(t);let r=0;for(;o[r]==n[r]&&o[r];)r++;return 0==r?null:o[r-1]}isBefore(e){if(this==e)return!1;if(this.root!==e.root)return!1;const t=this.getPath(),o=e.getPath(),n=A(t,o);return!('prefix'!==n)||'extension'!==n&&t[n]<o[n]}isAfter(e){return this!=e&&!(this.root!==e.root)&&!this.isBefore(e)}hasAttribute(e){return this._attrs.has(e)}getAttribute(e){return this._attrs.get(e)}getAttributes(){return this._attrs.entries()}getAttributeKeys(){return this._attrs.keys()}toJSON(){const e={};return this._attrs.size&&(e.attributes=[...this._attrs]),e}_clone(){return new ru(this._attrs)}_remove(){this.parent._removeChildren(this.index)}_setAttribute(e,t){this._attrs.set(e,t)}_setAttributesTo(e){this._attrs=ut(e)}_removeAttribute(e){return this._attrs.delete(e)}_clearAttributes(){this._attrs.clear()}is(e){return'node'==e}}class au extends ru{constructor(e,t){super(t),this._data=e||''}get offsetSize(){return this.data.length}get data(){return this._data}is(e){return'text'==e||super.is(e)}toJSON(){const e=super.toJSON();return e.data=this.data,e}_clone(){return new au(this.data,this.getAttributes())}static fromJSON(e){return new au(e.data,e.attributes)}}class su{constructor(e,t,o){if(this.textNode=e,0>t||t>e.offsetSize)throw new _s('model-textproxy-wrong-offsetintext: Given offsetInText value is incorrect.');if(0>o||t+o>e.offsetSize)throw new _s('model-textproxy-wrong-length: Given length value is incorrect.');this.data=e.data.substring(t,t+o),this.offsetInText=t}get startOffset(){return null===this.textNode.startOffset?null:this.textNode.startOffset+this.offsetInText}get offsetSize(){return this.data.length}get endOffset(){return null===this.startOffset?null:this.startOffset+this.offsetSize}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(e){return'textProxy'==e}getPath(){const e=this.textNode.getPath();return 0<e.length&&(e[e.length-1]+=this.offsetInText),e}getAncestors(e={includeSelf:!1,parentFirst:!1}){const t=[];for(let o=e.includeSelf?this:this.parent;o;)t[e.parentFirst?'push':'unshift'](o),o=o.parent;return t}hasAttribute(e){return this.textNode.hasAttribute(e)}getAttribute(e){return this.textNode.getAttribute(e)}getAttributes(){return this.textNode.getAttributes()}getAttributeKeys(){return this.textNode.getAttributeKeys()}}class lu{constructor(e){this._nodes=[],e&&this._insertNodes(0,e)}[Symbol.iterator](){return this._nodes[Symbol.iterator]()}get length(){return this._nodes.length}get maxOffset(){return this._nodes.reduce((e,t)=>e+t.offsetSize,0)}getNode(e){return this._nodes[e]||null}getNodeIndex(e){const t=this._nodes.indexOf(e);return-1==t?null:t}getNodeStartOffset(e){const t=this.getNodeIndex(e);return null===t?null:this._nodes.slice(0,t).reduce((e,t)=>e+t.offsetSize,0)}indexToOffset(e){if(e==this._nodes.length)return this.maxOffset;const t=this._nodes[e];if(!t)throw new _s('model-nodelist-index-out-of-bounds: Given index cannot be found in the node list.');return this.getNodeStartOffset(t)}offsetToIndex(e){let t=0;for(const o of this._nodes){if(e>=t&&e<t+o.offsetSize)return this.getNodeIndex(o);t+=o.offsetSize}if(t!=e)throw new _s('model-nodelist-offset-out-of-bounds: Given offset cannot be found in the node list.',{offset:e,nodeList:this});return this.length}_insertNodes(e,t){for(const o of t)if(!(o instanceof ru))throw new _s('model-nodelist-insertNodes-not-node: Trying to insert an object which is not a Node instance.');this._nodes.splice(e,0,...t)}_removeNodes(e,t=1){return this._nodes.splice(e,t)}toJSON(){return this._nodes.map((e)=>e.toJSON())}}class du extends ru{constructor(e,t,o){super(t),this.name=e,this._children=new lu,o&&this._insertChild(0,o)}get childCount(){return this._children.length}get maxOffset(){return this._children.maxOffset}get isEmpty(){return 0===this.childCount}is(e,t=null){return t?'element'==e&&t==this.name:'element'==e||e==this.name||super.is(e)}getChild(e){return this._children.getNode(e)}getChildren(){return this._children[Symbol.iterator]()}getChildIndex(e){return this._children.getNodeIndex(e)}getChildStartOffset(e){return this._children.getNodeStartOffset(e)}offsetToIndex(e){return this._children.offsetToIndex(e)}getNodeByPath(e){let t=this;for(const o of e)t=t.getChild(t.offsetToIndex(o));return t}toJSON(){const e=super.toJSON();if(e.name=this.name,0<this._children.length){e.children=[];for(const t of this._children)e.children.push(t.toJSON())}return e}_clone(e=!1){const t=e?Array.from(this._children).map((e)=>e._clone(!0)):null;return new du(this.name,this.getAttributes(),t)}_appendChild(e){this._insertChild(this.childCount,e)}_insertChild(e,t){const o=pt(t);for(const n of o)null!==n.parent&&n._remove(),n.parent=this;this._children._insertNodes(e,o)}_removeChildren(e,t=1){const o=this._children._removeNodes(e,t);for(const n of o)n.parent=null;return o}static fromJSON(e){let t=null;if(e.children){t=[];for(const o of e.children)o.name?t.push(du.fromJSON(o)):t.push(au.fromJSON(o))}return new du(e.name,e.attributes,t)}}class cu{constructor(e={}){if(!e.boundaries&&!e.startPosition)throw new _s('model-tree-walker-no-start-position: Neither boundaries nor starting position have been defined.');const t=e.direction||'forward';if('forward'!=t&&'backward'!=t)throw new _s('model-tree-walker-unknown-direction: Only `backward` and `forward` direction allowed.',{direction:t});this.direction=t,this.boundaries=e.boundaries||null,this.position=e.startPosition?uu.createFromPosition(e.startPosition):uu.createFromPosition(this.boundaries['backward'==this.direction?'end':'start']),this.singleCharacters=!!e.singleCharacters,this.shallow=!!e.shallow,this.ignoreElementEnd=!!e.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(e){let t,o,n,i;do n=this.position,i=this._visitedParent,({done:t,value:o}=this.next());while(!t&&e(o));t||(this.position=n,this._visitedParent=i)}next(){return'forward'==this.direction?this._next():this._previous()}_next(){const e=this.position,t=uu.createFromPosition(this.position),o=this._visitedParent;if(null===o.parent&&t.offset===o.maxOffset)return{done:!0};if(o===this._boundaryEndParent&&t.offset==this.boundaries.end.offset)return{done:!0};const n=t.textNode?t.textNode:t.nodeAfter;if(n instanceof du)return this.shallow?t.offset++:(t.path.push(0),this._visitedParent=n),this.position=t,gt('elementStart',n,e,t,1);if(n instanceof au){let i;if(this.singleCharacters)i=1;else{let e=n.endOffset;this._boundaryEndParent==o&&this.boundaries.end.offset<e&&(e=this.boundaries.end.offset),i=e-t.offset}const r=t.offset-n.startOffset,a=new su(n,r,i);return t.offset+=i,this.position=t,gt('text',a,e,t,i)}return t.path.pop(),t.offset++,this.position=t,this._visitedParent=o.parent,this.ignoreElementEnd?this._next():gt('elementEnd',o,e,t)}_previous(){const e=this.position,t=uu.createFromPosition(this.position),o=this._visitedParent;if(null===o.parent&&0===t.offset)return{done:!0};if(o==this._boundaryStartParent&&t.offset==this.boundaries.start.offset)return{done:!0};const n=t.textNode?t.textNode:t.nodeBefore;if(n instanceof du)return t.offset--,this.shallow?(this.position=t,gt('elementStart',n,e,t,1)):(t.path.push(n.maxOffset),this.position=t,this._visitedParent=n,this.ignoreElementEnd?this._previous():gt('elementEnd',n,e,t));if(n instanceof au){let i;if(this.singleCharacters)i=1;else{let e=n.startOffset;this._boundaryStartParent==o&&this.boundaries.start.offset>e&&(e=this.boundaries.start.offset),i=t.offset-e}const r=t.offset-n.startOffset,a=new su(n,r-i,i);return t.offset-=i,this.position=t,gt('text',a,e,t,i)}return t.path.pop(),this.position=t,this._visitedParent=o.parent,gt('elementStart',o,e,t,1)}}var mu=function(e){var t=e?e.length:0;return t?e[t-1]:void 0};class uu{constructor(e,t){if(!e.is('element')&&!e.is('documentFragment'))throw new _s('model-position-root-invalid: Position root invalid.');if(!(t instanceof Array)||0===t.length)throw new _s('model-position-path-incorrect: Position path must be an array with at least one item.',{path:t});t=e.getPath().concat(t),e=e.root,this.root=e,this.path=t}get offset(){return mu(this.path)}set offset(e){this.path[this.path.length-1]=e}get parent(){let e=this.root;for(let t=0;t<this.path.length-1;t++)e=e.getChild(e.offsetToIndex(this.path[t]));return e}get index(){return this.parent.offsetToIndex(this.offset)}get textNode(){const e=this.parent.getChild(this.index);return e instanceof au&&e.startOffset<this.offset?e: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(e){if(this.root!=e.root)return'different';const t=A(this.path,e.path);return'same'===t?'same':'prefix'===t?'before':'extension'===t?'after':this.path[t]<e.path[t]?'before':'after'}getLastMatchingPosition(e,t={}){t.startPosition=this;const o=new cu(t);return o.skip(e),o.position}getParentPath(){return this.path.slice(0,-1)}getAncestors(){return this.parent.is('documentFragment')?[this.parent]:this.parent.getAncestors({includeSelf:!0})}getCommonPath(e){if(this.root!=e.root)return[];const t=A(this.path,e.path),o='string'==typeof t?rs(this.path.length,e.path.length):t;return this.path.slice(0,o)}getCommonAncestor(e){const t=this.getAncestors(),o=e.getAncestors();let n=0;for(;t[n]==o[n]&&t[n];)n++;return 0==n?null:t[n-1]}getShiftedBy(e){const t=uu.createFromPosition(this),o=t.offset+e;return t.offset=0>o?0:o,t}isAfter(e){return'after'==this.compareWith(e)}isBefore(e){return'before'==this.compareWith(e)}isEqual(e){return'same'==this.compareWith(e)}isTouching(e){let t=null,o=null;const n=this.compareWith(e);switch(n){case'same':return!0;case'before':t=uu.createFromPosition(this),o=uu.createFromPosition(e);break;case'after':t=uu.createFromPosition(e),o=uu.createFromPosition(this);break;default:return!1;}for(let n=t.parent;t.path.length+o.path.length;){if(t.isEqual(o))return!0;if(t.path.length>o.path.length){if(t.offset!==n.maxOffset)return!1;t.path=t.path.slice(0,-1),n=n.parent,t.offset++}else{if(0!==o.offset)return!1;o.path=o.path.slice(0,-1)}}}_getTransformedByDeletion(e,t){const o=uu.createFromPosition(this);if(this.root!=e.root)return o;if('same'==A(e.getParentPath(),this.getParentPath())){if(e.offset<this.offset){if(e.offset+t>this.offset)return null;o.offset-=t}}else if('prefix'==A(e.getParentPath(),this.getParentPath())){const n=e.path.length-1;if(e.offset<=this.path[n]){if(e.offset+t>this.path[n])return null;o.path[n]-=t}}return o}_getTransformedByInsertion(e,t,o){const n=uu.createFromPosition(this);if(this.root!=e.root)return n;if('same'==A(e.getParentPath(),this.getParentPath()))(e.offset<this.offset||e.offset==this.offset&&o)&&(n.offset+=t);else if('prefix'==A(e.getParentPath(),this.getParentPath())){const o=e.path.length-1;e.offset<=this.path[o]&&(n.path[o]+=t)}return n}_getTransformedByMove(e,t,o,n,i){let r=this._getTransformedByDeletion(e,o);return t=t._getTransformedByDeletion(e,o),r=null===r||i&&r.isEqual(e)?this._getCombined(e,t):r._getTransformedByInsertion(t,o,n),r}_getCombined(e,t){const o=e.path.length-1,n=uu.createFromPosition(t);return n.offset=n.offset+this.path[o]-e.offset,n.path=n.path.concat(this.path.slice(o+1)),n}static createAt(e,t){if(e instanceof uu)return this.createFromPosition(e);else{const o=e;if('end'==t)t=o.maxOffset;else{if('before'==t)return this.createBefore(o);if('after'==t)return this.createAfter(o);t||(t=0)}return this.createFromParentAndOffset(o,t)}}static createAfter(e){if(!e.parent)throw new _s('model-position-after-root: You cannot make a position after root.',{root:e});return this.createFromParentAndOffset(e.parent,e.endOffset)}static createBefore(e){if(!e.parent)throw new _s('model-position-before-root: You cannot make a position before root.',{root:e});return this.createFromParentAndOffset(e.parent,e.startOffset)}static createFromParentAndOffset(e,t){if(!e.is('element')&&!e.is('documentFragment'))throw new _s('model-position-parent-incorrect: Position parent have to be a element or document fragment.');const o=e.getPath();return o.push(t),new this(e.root,o)}static createFromPosition(e){return new this(e.root,e.path.slice())}static fromJSON(e,t){if('$graveyard'===e.root)return new uu(t.graveyard,e.path);if(!t.getRoot(e.root))throw new _s('model-position-fromjson-no-root: Cannot create position for document. Root with specified name does not exist.',{rootName:e.root});return new uu(t.getRoot(e.root),e.path)}}class pu{constructor(e,t=null){this.start=uu.createFromPosition(e),this.end=t?uu.createFromPosition(t):uu.createFromPosition(e)}*[Symbol.iterator](){yield*new cu({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(e){return e.isAfter(this.start)&&e.isBefore(this.end)}containsRange(e,t=!1){e.isCollapsed&&(t=!1);const o=this.containsPosition(e.start)||t&&this.start.isEqual(e.start),n=this.containsPosition(e.end)||t&&this.end.isEqual(e.end);return o&&n}containsItem(e){const t=uu.createBefore(e);return this.containsPosition(t)||this.start.isEqual(t)}isEqual(e){return this.start.isEqual(e.start)&&this.end.isEqual(e.end)}isIntersecting(e){return this.start.isBefore(e.end)&&this.end.isAfter(e.start)}getDifference(e){const t=[];return this.isIntersecting(e)?(this.containsPosition(e.start)&&t.push(new pu(this.start,e.start)),this.containsPosition(e.end)&&t.push(new pu(e.end,this.end))):t.push(pu.createFromRange(this)),t}getIntersection(e){if(this.isIntersecting(e)){let t=this.start,o=this.end;return this.containsPosition(e.start)&&(t=e.start),this.containsPosition(e.end)&&(o=e.end),new pu(t,o)}return null}getMinimalFlatRanges(){const e=[],t=this.start.getCommonPath(this.end).length,o=uu.createFromPosition(this.start);for(let n=o.parent;o.path.length>t+1;){const t=n.maxOffset-o.offset;0!=t&&e.push(new pu(o,o.getShiftedBy(t))),o.path=o.path.slice(0,-1),o.offset++,n=n.parent}for(;o.path.length<=this.end.path.length;){const t=this.end.path[o.path.length-1],n=t-o.offset;0!=n&&e.push(new pu(o,o.getShiftedBy(n))),o.offset=t,o.path.push(0)}return e}getWalker(e={}){return e.boundaries=this,new cu(e)}*getItems(e={}){e.boundaries=this,e.ignoreElementEnd=!0;const t=new cu(e);for(const o of t)yield o.item}*getPositions(e={}){e.boundaries=this;const t=new cu(e);yield t.position;for(const o of t)yield o.nextPosition}getTransformedByDelta(e){const t=[pu.createFromRange(this)],o=new Set(['insert','move','remove','reinsert']);for(const n of e.operations)if(o.has(n.type))for(let o=0;o<t.length;o++){let i;i='insert'==n.type?t[o]._getTransformedByDocumentChange(n.type,e.type,n.position,n.nodes.maxOffset):t[o]._getTransformedByDocumentChange(n.type,e.type,n.targetPosition,n.howMany,n.sourcePosition),t.splice(o,1,...i),o+=i.length-1}return t}getTransformedByDeltas(e){const t=[pu.createFromRange(this)];for(const o of e)for(let e=0;e<t.length;e++){const n=t[e].getTransformedByDelta(o);t.splice(e,1,...n),e+=n.length-1}for(let o=0;o<t.length;o++){const e=t[o];for(let n=o+1;n<t.length;n++){const o=t[n];(e.containsRange(o)||o.containsRange(e)||e.isEqual(o))&&t.splice(n,1)}}return t}getCommonAncestor(){return this.start.getCommonAncestor(this.end)}_getTransformedByDocumentChange(e,t,o,n,i){if('insert'==e)return this._getTransformedByInsertion(o,n,!1,!1);else{const e=pu.createFromPositionAndShift(i,n);if('merge'==t&&this.isCollapsed&&(this.start.isEqual(e.start)||this.start.isEqual(e.end))){const t=this.start.offset-e.start.offset;return[new pu(o.getShiftedBy(t))]}if('split'==t&&this.isCollapsed&&this.end.isEqual(e.end))return[new pu(o.getShiftedBy(n))];if((e.containsPosition(this.start)||e.start.isEqual(this.start))&&this.containsPosition(e.end)&&this.end.isAfter(o)){const e=this.start._getCombined(i,o._getTransformedByDeletion(i,n)),t=this.end._getTransformedByMove(i,o,n,!1,!1);return[new pu(e,t)]}if((e.containsPosition(this.end)||e.end.isEqual(this.end))&&this.containsPosition(e.start)&&this.start.isBefore(o)){const e=this.start._getTransformedByMove(i,o,n,!0,!1),t=this.end._getCombined(i,o._getTransformedByDeletion(i,n));return[new pu(e,t)]}return this._getTransformedByMove(i,o,n)}}_getTransformedByInsertion(e,t,o=!1,n=!1){if(o&&this.containsPosition(e))return[new pu(this.start,e),new pu(e._getTransformedByInsertion(e,t,!0),this.end._getTransformedByInsertion(e,t,this.isCollapsed))];else{const o=pu.createFromRange(this),i=!!o.isCollapsed||n;return o.start=o.start._getTransformedByInsertion(e,t,!n),o.end=o.end._getTransformedByInsertion(e,t,i),[o]}}_getTransformedByMove(e,t,o){if(this.isCollapsed){const n=this.start._getTransformedByMove(e,t,o,!0,!1);return[new pu(n)]}let n;const i=new pu(e,e.getShiftedBy(o)),r=this.getDifference(i);let a=null;const s=this.getIntersection(i);1==r.length?a=new pu(r[0].start._getTransformedByDeletion(e,o),r[0].end._getTransformedByDeletion(e,o)):2==r.length&&(a=new pu(this.start,this.end._getTransformedByDeletion(e,o)));const l=t._getTransformedByDeletion(e,o);return n=a?a._getTransformedByInsertion(l,o,null!==s):[],s&&n.push(new pu(s.start._getCombined(i.start,l),s.end._getCombined(i.start,l))),n}static createFromPositionAndShift(e,t){const o=e,n=e.getShiftedBy(t);return 0<t?new this(o,n):new this(n,o)}static createFromParentsAndOffsets(e,t,o,n){return new this(uu.createFromParentAndOffset(e,t),uu.createFromParentAndOffset(o,n))}static createFromRange(e){return new this(e.start,e.end)}static createIn(e){return this.createFromParentsAndOffsets(e,0,e,e.maxOffset)}static createOn(e){return this.createFromPositionAndShift(uu.createBefore(e),e.offsetSize)}static createCollapsedAt(e,t){const o=uu.createAt(e,t),n=uu.createFromPosition(o);return new pu(o,n)}static createFromRanges(e){if(0===e.length)throw new _s('range-create-from-ranges-empty-array: At least one range has to be passed.');else if(1==e.length)return this.createFromRange(e[0]);const t=e[0];e.sort((e,t)=>e.start.isAfter(t.start)?1:-1);const o=e.indexOf(t),n=new this(t.start,t.end);for(let t=o-1;0<=t&&e[t].end.isEqual(n.start);t++)n.start=uu.createFromPosition(e[t].start);for(let t=o+1;t<e.length&&e[t].start.isEqual(n.end);t++)n.end=uu.createFromPosition(e[t].end);return n}static fromJSON(e,t){return new this(uu.fromJSON(e.start,t),uu.fromJSON(e.end,t))}}class gu{constructor(){this._modelToViewMapping=new WeakMap,this._viewToModelMapping=new WeakMap,this._viewToModelLengthCallbacks=new Map,this._markerNameToElements=new Map,this.on('modelToViewPosition',(e,t)=>{if(!t.viewPosition){const e=this._modelToViewMapping.get(t.modelPosition.parent);t.viewPosition=this._findPositionIn(e,t.modelPosition.offset)}},{priority:'low'}),this.on('viewToModelPosition',(e,t)=>{if(t.modelPosition)return;let o=t.viewPosition.parent,n=this._viewToModelMapping.get(o);for(;!n;)o=o.parent,n=this._viewToModelMapping.get(o);const i=this._toModelOffset(t.viewPosition.parent,t.viewPosition.offset,o);t.modelPosition=uu.createFromParentAndOffset(n,i)},{priority:'low'})}bindElements(e,t){this._modelToViewMapping.set(e,t),this._viewToModelMapping.set(t,e)}unbindViewElement(e){const t=this.toModelElement(e);this._viewToModelMapping.delete(e),this._modelToViewMapping.get(t)==e&&this._modelToViewMapping.delete(t)}unbindModelElement(e){const t=this.toViewElement(e);this._modelToViewMapping.delete(e),this._viewToModelMapping.get(t)==e&&this._viewToModelMapping.delete(t)}bindElementToMarker(e,t){const o=this._markerNameToElements.get(t)||new Set;o.add(e),this._markerNameToElements.set(t,o)}unbindElementsFromMarkerName(e){this._markerNameToElements.delete(e)}clearBindings(){this._modelToViewMapping=new WeakMap,this._viewToModelMapping=new WeakMap,this._markerNameToElements=new Map}toModelElement(e){return this._viewToModelMapping.get(e)}toViewElement(e){return this._modelToViewMapping.get(e)}toModelRange(e){return new pu(this.toModelPosition(e.start),this.toModelPosition(e.end))}toViewRange(e){return new Uc(this.toViewPosition(e.start),this.toViewPosition(e.end))}toModelPosition(e){const t={viewPosition:e,mapper:this};return this.fire('viewToModelPosition',t),t.modelPosition}toViewPosition(e,t={isPhantom:!1}){const o={modelPosition:e,mapper:this,isPhantom:t.isPhantom};return this.fire('modelToViewPosition',o),o.viewPosition}markerNameToElements(e){const t=this._markerNameToElements.get(e);if(!t)return null;const o=new Set;for(const n of t)if(n.is('attributeElement'))for(const e of n.getElementsWithSameId())o.add(e);else o.add(n);return o}registerViewToModelLength(e,t){this._viewToModelLengthCallbacks.set(e,t)}_toModelOffset(e,t,o){if(o!=e){const n=this._toModelOffset(e.parent,e.index,o),i=this._toModelOffset(e,t,e);return n+i}if(e.is('text'))return t;let n=0;for(let r=0;r<t;r++)n+=this.getModelLength(e.getChild(r));return n}getModelLength(e){if(this._viewToModelLengthCallbacks.get(e.name)){const t=this._viewToModelLengthCallbacks.get(e.name);return t(e)}if(this._viewToModelMapping.has(e))return 1;if(e.is('text'))return e.data.length;if(e.is('uiElement'))return 0;else{let t=0;for(const o of e.getChildren())t+=this.getModelLength(o);return t}}_findPositionIn(e,t){let o=0,n=0,i=0,r;if(e.is('text'))return new Wc(e,t);for(;n<t;)r=e.getChild(i),o=this.getModelLength(r),n+=o,i++;return n==t?this._moveViewPositionToTextNode(new Wc(e,i)):this._findPositionIn(r,t-(n-o))}_moveViewPositionToTextNode(e){const t=e.nodeBefore,o=e.nodeAfter;if(t instanceof Qd)return new Wc(t,t.data.length);return o instanceof Qd?new Wc(o,0):e}}f(gu,Ps);class fu{constructor(){this._consumable=new Map,this._textProxyRegistry=new Map}add(e,t){t=ft(t),e instanceof su&&(e=this._getSymbolForTextProxy(e)),this._consumable.has(e)||this._consumable.set(e,new Map),this._consumable.get(e).set(t,!0)}consume(e,t){return t=ft(t),e instanceof su&&(e=this._getSymbolForTextProxy(e)),!!this.test(e,t)&&(this._consumable.get(e).set(t,!1),!0)}test(e,t){t=ft(t),e instanceof su&&(e=this._getSymbolForTextProxy(e));const o=this._consumable.get(e);if(o===void 0)return null;const n=o.get(t);return void 0===n?null:n}revert(e,t){t=ft(t),e instanceof su&&(e=this._getSymbolForTextProxy(e));const o=this.test(e,t);return!1===o?(this._consumable.get(e).set(t,!0),!0):!0!==o&&null}_getSymbolForTextProxy(e){let t=null;const o=this._textProxyRegistry.get(e.startOffset);if(o){const n=o.get(e.endOffset);n&&(t=n.get(e.parent))}return t||(t=this._addSymbolForTextProxy(e.startOffset,e.endOffset,e.parent)),t}_addSymbolForTextProxy(e,t,o){const n=Symbol('textProxySymbol');let i,r;return i=this._textProxyRegistry.get(e),i||(i=new Map,this._textProxyRegistry.set(e,i)),r=i.get(t),r||(r=new Map,i.set(t,r)),r.set(o,n),n}}class hu{constructor(e={}){this.conversionApi=Rc({dispatcher:this},e)}convertChanges(e,t){for(const o of e.getMarkersToRemove())this.convertMarkerRemove(o.name,o.range,t);for(const o of e.getChanges())'insert'==o.type?this.convertInsert(pu.createFromPositionAndShift(o.position,o.length),t):'remove'==o.type?this.convertRemove(o.position,o.length,o.name,t):this.convertAttribute(o.range,o.attributeKey,o.attributeOldValue,o.attributeNewValue,t);for(const o of e.getMarkersToAdd())this.convertMarkerAdd(o.name,o.range,t)}convertInsert(e,t){this.conversionApi.writer=t,this.conversionApi.consumable=this._createInsertConsumable(e);for(const o of e){const e=o.item,t=pu.createFromPositionAndShift(o.previousPosition,o.length),n={item:e,range:t};this._testAndFire('insert',n);for(const t of e.getAttributeKeys())n.attributeKey=t,n.attributeOldValue=null,n.attributeNewValue=e.getAttribute(t),this._testAndFire(`attribute:${t}`,n)}this._clearConversionApi()}convertRemove(e,t,o,n){this.conversionApi.writer=n,this.fire('remove:'+o,{position:e,length:t},this.conversionApi),this._clearConversionApi()}convertAttribute(e,t,o,n,i){this.conversionApi.writer=i,this.conversionApi.consumable=this._createConsumableForRange(e,`attribute:${t}`);for(const r of e){const e=r.item,i=pu.createFromPositionAndShift(r.previousPosition,r.length);this._testAndFire(`attribute:${t}`,{item:e,range:i,attributeKey:t,attributeOldValue:o,attributeNewValue:n})}this._clearConversionApi()}convertSelection(e,t,o){const n=Array.from(t.getMarkersAtPosition(e.getFirstPosition()));if(this.conversionApi.writer=o,this.conversionApi.consumable=this._createSelectionConsumable(e,n),this.fire('selection',{selection:e},this.conversionApi),!!e.isCollapsed){for(const t of n){const o=t.getRange();if(!ht(e.getFirstPosition(),t,this.conversionApi.mapper))continue;const n={item:e,markerName:t.name,markerRange:o};this.conversionApi.consumable.test(e,'addMarker:'+t.name)&&this.fire('addMarker:'+t.name,n,this.conversionApi)}for(const t of e.getAttributeKeys()){const o={item:e,range:e.getFirstRange(),attributeKey:t,attributeOldValue:null,attributeNewValue:e.getAttribute(t)};this.conversionApi.consumable.test(e,'attribute:'+o.attributeKey)&&this.fire('attribute:'+o.attributeKey,o,this.conversionApi)}this._clearConversionApi()}}convertMarkerAdd(e,t,o){if(t.root.document&&'$graveyard'!=t.root.rootName){this.conversionApi.writer=o;const n='addMarker:'+e;if(t.isCollapsed){const o=new fu;return o.add(t,n),this.conversionApi.consumable=o,void this.fire(n,{markerName:e,markerRange:t},this.conversionApi)}this.conversionApi.consumable=this._createConsumableForRange(t,n);for(const o of t.getItems()){if(!this.conversionApi.consumable.test(o,n))continue;const i={item:o,range:pu.createOn(o),markerName:e,markerRange:t};this.fire(n,i,this.conversionApi)}this._clearConversionApi()}}convertMarkerRemove(e,t,o){t.root.document&&'$graveyard'!=t.root.rootName&&(this.conversionApi.writer=o,this.fire('removeMarker:'+e,{markerName:e,markerRange:t},this.conversionApi),this._clearConversionApi())}_createInsertConsumable(e){const t=new fu;for(const o of e){const e=o.item;t.add(e,'insert');for(const o of e.getAttributeKeys())t.add(e,'attribute:'+o)}return t}_createConsumableForRange(e,t){const o=new fu;for(const n of e.getItems())o.add(n,t);return o}_createSelectionConsumable(e,t){const o=new fu;o.add(e,'selection');for(const n of t)o.add(e,'addMarker:'+n.name);for(const n of e.getAttributeKeys())o.add(e,'attribute:'+n);return o}_testAndFire(e,t){if(this.conversionApi.consumable.test(t.item,e)){const o=t.item.name||'$text';this.fire(e+':'+o,t,this.conversionApi)}}_clearConversionApi(){delete this.conversionApi.writer,delete this.conversionApi.consumable}}f(hu,Ps);class bu{constructor(e,t,o){this._lastRangeBackward=!1,this._ranges=[],this._attrs=new Map,e&&this.setTo(e,t,o)}get anchor(){if(0<this._ranges.length){const e=this._ranges[this._ranges.length-1];return this._lastRangeBackward?e.end:e.start}return null}get focus(){if(0<this._ranges.length){const e=this._ranges[this._ranges.length-1];return this._lastRangeBackward?e.start:e.end}return null}get isCollapsed(){const e=this._ranges.length;return!(1!==e)&&this._ranges[0].isCollapsed}get rangeCount(){return this._ranges.length}get isBackward(){return!this.isCollapsed&&this._lastRangeBackward}isEqual(e){if(this.rangeCount!=e.rangeCount)return!1;if(0===this.rangeCount)return!0;if(!this.anchor.isEqual(e.anchor)||!this.focus.isEqual(e.focus))return!1;for(const t of this._ranges){let o=!1;for(const n of e._ranges)if(t.isEqual(n)){o=!0;break}if(!o)return!1}return!0}*getRanges(){for(const e of this._ranges)yield pu.createFromRange(e)}getFirstRange(){let e=null;for(const t of this._ranges)(!e||t.start.isBefore(e.start))&&(e=t);return e?pu.createFromRange(e):null}getLastRange(){let e=null;for(const t of this._ranges)(!e||t.end.isAfter(e.end))&&(e=t);return e?pu.createFromRange(e):null}getFirstPosition(){const e=this.getFirstRange();return e?uu.createFromPosition(e.start):null}getLastPosition(){const e=this.getLastRange();return e?uu.createFromPosition(e.end):null}setTo(e,t,o){if(null===e)this._setRanges([]);else if(e instanceof bu)this._setRanges(e.getRanges(),e.isBackward);else if(e&&'function'==typeof e.getRanges)this._setRanges(e.getRanges(),e.isBackward);else if(e instanceof pu)this._setRanges([e],!!t&&!!t.backward);else if(e instanceof uu)this._setRanges([new pu(e)]);else if(e instanceof ru){const n=!!o&&!!o.backward;let i;if('in'==t)i=pu.createIn(e);else if('on'==t)i=pu.createOn(e);else if(t!==void 0)i=pu.createCollapsedAt(e,t);else throw new _s('model-selection-setTo-required-second-parameter: selection.setTo requires the second parameter when the first parameter is a node.');this._setRanges([i],n)}else if(P(e))this._setRanges(e,t&&!!t.backward);else throw new _s('model-selection-setTo-not-selectable: Cannot set selection to given place.')}_setRanges(e,t=!1){e=Array.from(e);const o=e.some((e)=>{if(!(e instanceof pu))throw new _s('model-selection-added-not-range: Trying to add an object that is not an instance of Range.');return this._ranges.every((t)=>!t.isEqual(e))});if(e.length!==this._ranges.length||o){this._removeAllRanges();for(const t of e)this._pushRange(t);this._lastRangeBackward=!!t,this.fire('change:range',{directChange:!0})}}setFocus(e,t){if(null===this.anchor)throw new _s('model-selection-setFocus-no-ranges: Cannot set selection focus if there are no ranges in selection.');const o=uu.createAt(e,t);if('same'!=o.compareWith(this.focus)){const e=this.anchor;this._ranges.length&&this._popRange(),'before'==o.compareWith(e)?(this._pushRange(new pu(o,e)),this._lastRangeBackward=!0):(this._pushRange(new pu(e,o)),this._lastRangeBackward=!1),this.fire('change:range',{directChange:!0})}}getAttribute(e){return this._attrs.get(e)}getAttributes(){return this._attrs.entries()}getAttributeKeys(){return this._attrs.keys()}hasAttribute(e){return this._attrs.has(e)}removeAttribute(e){this.hasAttribute(e)&&(this._attrs.delete(e),this.fire('change:attribute',{attributeKeys:[e],directChange:!0}))}setAttribute(e,t){this.getAttribute(e)!==t&&(this._attrs.set(e,t),this.fire('change:attribute',{attributeKeys:[e],directChange:!0}))}getSelectedElement(){if(1!==this.rangeCount)return null;const e=this.getFirstRange(),t=e.start.nodeAfter,o=e.end.nodeBefore;return t instanceof du&&t==o?t:null}*getSelectedBlocks(){const e=new WeakSet;for(const t of this.getRanges()){const o=kt(t.start,e);o&&(yield o);for(const o of t.getWalker())'elementEnd'==o.type&&bt(o.item,e)&&(yield o.item);const n=kt(t.end,e);n&&!t.end.isTouching(uu.createAt(n))&&(yield n)}}containsEntireContent(e=this.anchor.root){const t=uu.createAt(e),o=uu.createAt(e,'end');return t.isTouching(this.getFirstPosition())&&o.isTouching(this.getLastPosition())}_pushRange(e){this._checkRange(e),this._ranges.push(pu.createFromRange(e))}_checkRange(e){for(let t=0;t<this._ranges.length;t++)if(e.isIntersecting(this._ranges[t]))throw new _s('model-selection-range-intersects: Trying to add a range that intersects with another range from selection.',{addedRange:e,intersectingRange:this._ranges[t]})}_removeAllRanges(){for(;0<this._ranges.length;)this._popRange()}_popRange(){this._ranges.pop()}}f(bu,Ps);class ku extends pu{constructor(e,t){super(e,t),_t.call(this)}detach(){this.stopListening()}}f(ku,Ps);const _u='selection:';class wu{constructor(e){this._selection=new vu(e),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(e){return this._selection.containsEntireContent(e)}destroy(){this._selection.destroy()}getAttributeKeys(){return this._selection.getAttributeKeys()}getAttributes(){return this._selection.getAttributes()}getAttribute(e){return this._selection.getAttribute(e)}hasAttribute(e){return this._selection.hasAttribute(e)}_setFocus(e,t){this._selection.setFocus(e,t)}_setTo(e,t,o){this._selection.setTo(e,t,o)}_setAttribute(e,t){this._selection.setAttribute(e,t)}_removeAttribute(e){this._selection.removeAttribute(e)}_getStoredAttributes(){return this._selection._getStoredAttributes()}_overrideGravity(){return this._selection.overrideGravity()}_restoreGravity(e){this._selection.restoreGravity(e)}static _getStoreAttributeKey(e){return _u+e}static _isStoreAttributeKey(e){return e.startsWith(_u)}}f(wu,Ps);class vu extends bu{constructor(e){super(),this._model=e.model,this._document=e,this._attributePriority=new Map,this._fixGraveyardRangesData=[],this._hasChangedRange=!1,this._overriddenGravityRegister=new Set,this.on('change:range',()=>{for(const e of this.getRanges())if(!this._document._validateSelectionRange(e))throw new _s('document-selection-wrong-position: Range from document selection starts or ends at incorrect position.',{range:e})}),this.listenTo(this._document,'change',(e,t)=>{this._updateAttributes(!1),yt(this._model,t)}),this.listenTo(this._model,'applyOperation',()=>{for(;this._fixGraveyardRangesData.length;){const{liveRange:e,sourcePosition:t}=this._fixGraveyardRangesData.shift();this._fixGraveyardSelection(e,t)}this._hasChangedRange&&(this._hasChangedRange=!1,this.fire('change:range',{directChange:!1}))},{priority:'lowest'})}get isCollapsed(){const e=this._ranges.length;return 0===e?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 0<this._ranges.length}get isGravityOverridden(){return!!this._overriddenGravityRegister.size}destroy(){for(let e=0;e<this._ranges.length;e++)this._ranges[e].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(e,t,o){super.setTo(e,t,o),this._refreshAttributes()}setFocus(e,t){super.setFocus(e,t),this._refreshAttributes()}setAttribute(e,t){if(this._setAttribute(e,t)){this.fire('change:attribute',{attributeKeys:[e],directChange:!0})}}removeAttribute(e){if(this._removeAttribute(e)){this.fire('change:attribute',{attributeKeys:[e],directChange:!0})}}overrideGravity(){const e=i();return this._overriddenGravityRegister.add(e),1===this._overriddenGravityRegister.size&&this._refreshAttributes(),e}restoreGravity(e){if(!this._overriddenGravityRegister.has(e))throw new _s('document-selection-gravity-wrong-restore: Attempting to restore the selection gravity for an unknown UID.',{uid:e});this._overriddenGravityRegister.delete(e),this.isGravityOverridden||this._refreshAttributes()}_refreshAttributes(){this._updateAttributes(!0)}_popRange(){this._ranges.pop().detach()}_pushRange(e){const t=this._prepareRange(e);t&&this._ranges.push(t)}_prepareRange(e){if(this._checkRange(e),e.root==this._document.graveyard)return void Xm.warn('model-selection-range-in-graveyard: Trying to add a Range that is in the graveyard root. Range rejected.');const t=ku.createFromRange(e);return t.on('change:range',(e,o,n)=>{this._hasChangedRange=!0,t.root==this._document.graveyard&&this._fixGraveyardRangesData.push({liveRange:t,sourcePosition:n.sourcePosition})}),t}_updateAttributes(e){const t=ut(this._getSurroundingAttributes()),o=ut(this.getAttributes());if(e)this._attributePriority=new Map,this._attrs=new Map;else for(const[e,t]of this._attributePriority)'low'==t&&(this._attrs.delete(e),this._attributePriority.delete(e));this._setAttributesTo(t);const n=[];for(const[t,i]of this.getAttributes())o.has(t)&&o.get(t)===i||n.push(t);for(const[t]of o)this.hasAttribute(t)||n.push(t);0<n.length&&this.fire('change:attribute',{attributeKeys:n,directChange:!1})}_setAttribute(e,t,o=!0){const n=o?'normal':'low';if('low'==n&&'normal'==this._attributePriority.get(e))return!1;const i=super.getAttribute(e);return i!==t&&(this._attrs.set(e,t),this._attributePriority.set(e,n),!0)}_removeAttribute(e,t=!0){const o=t?'normal':'low';return('low'!=o||'normal'!=this._attributePriority.get(e))&&(this._attributePriority.set(e,o),!!super.hasAttribute(e))&&(this._attrs.delete(e),!0)}_setAttributesTo(e){const t=new Set;for(const[t,o]of this.getAttributes())e.get(t)!==o&&this._removeAttribute(t,!1);for(const[o,n]of e){const e=this._setAttribute(o,n,!1);e&&t.add(o)}return t}*_getStoredAttributes(){const e=this.getFirstPosition().parent;if(this.isCollapsed&&e.isEmpty)for(const t of e.getAttributeKeys())if(t.startsWith(_u)){const o=t.substr(_u.length);yield[o,e.getAttribute(t)]}}_getSurroundingAttributes(){const e=this.getFirstPosition(),t=this._model.schema;let o=null;if(!this.isCollapsed){const e=this.getFirstRange();for(const n of e){if(n.item.is('element')&&t.isObject(n.item))break;'text'==n.type&&null===o&&(o=n.item.getAttributes())}}else{const t=e.textNode?e.textNode:e.nodeBefore,n=e.textNode?e.textNode:e.nodeAfter;if(this.isGravityOverridden||(o=vt(t)),o||(o=vt(n)),!this.isGravityOverridden&&!o)for(let e=t;e&&!o;)e=e.previousSibling,o=vt(e);if(!o)for(let e=n;e&&!o;)e=e.nextSibling,o=vt(e);o||(o=this._getStoredAttributes())}return o}_fixGraveyardSelection(e,t){const o=uu.createFromPosition(t),n=this._model.schema.getNearestSelectionRange(o),i=this._ranges.indexOf(e);if(this._ranges.splice(i,1),e.detach(),n){const e=this._prepareRange(n);this._ranges.splice(i,0,e)}}}var yu=function(e){return Gd(e,!0,!0)};class xu{constructor(e){this.model=e,this.view=new iu,this.mapper=new gu,this.downcastDispatcher=new hu({mapper:this.mapper});const t=this.model.document,o=t.selection,n=this.model.markers;this.listenTo(t,'change',()=>{this.view.change((e)=>{this.downcastDispatcher.convertChanges(t.differ,e),this.downcastDispatcher.convertSelection(o,n,e)})},{priority:'low'}),this.listenTo(this.view.document,'selectionChange',Nt(this.model,this.mapper)),this.downcastDispatcher.on('insert:$text',It(),{priority:'lowest'}),this.downcastDispatcher.on('remove',Rt(),{priority:'low'}),this.downcastDispatcher.on('selection',Bt(),{priority:'low'}),this.downcastDispatcher.on('selection',Dt(),{priority:'low'}),this.downcastDispatcher.on('selection',Mt(),{priority:'low'}),this.view.document.roots.bindTo(this.model.document.roots).using((e)=>{if('$graveyard'==e.rootName)return null;const t=new jc(e.name);return t.rootName=e.rootName,t._document=this.view.document,this.mapper.bindElements(e,t),t})}destroy(){this.view.destroy(),this.stopListening()}}f(xu,Mc);class Cu{constructor(e,t=[]){this._editor=e,this._availablePlugins=new Map,this._plugins=new Map;for(const o of t)this._availablePlugins.set(o,o),o.pluginName&&this._availablePlugins.set(o.pluginName,o)}*[Symbol.iterator](){for(const e of this._plugins)'function'==typeof e[0]&&(yield e)}get(e){return this._plugins.get(e)}load(e,t=[]){function o(e){return m.includes(e)||a.get(e)||l.has(e)?void 0:n(e).catch((t)=>{throw Xm.error('plugincollection-load: It was not possible to load the plugin.',{plugin:e}),t})}function n(e){return new Promise((n)=>{l.add(e),e.requires&&e.requires.forEach((n)=>{const r=i(n);if(t.includes(r))throw new _s('plugincollection-required: Cannot load a plugin because one of its dependencies is listed inthe `removePlugins` option.',{plugin:r,requiredBy:e});o(r)});const r=new e(s);a._add(e,r),d.push(r),n()})}function i(e){return'function'==typeof e?e:a._availablePlugins.get(e)}function r(e){return e.map((e)=>i(e)).filter((e)=>!!e)}const a=this,s=this._editor,l=new Set,d=[],c=r(e),m=r(t),u=function(e){const t=[];for(const o of e)i(o)||t.push(o);return t.length?t:null}(e);if(u){const e='plugincollection-plugin-not-found: Some plugins are not available and could not be loaded.';return Xm.error(e,{plugins:u}),Promise.reject(new _s(e,{plugins:u}))}return Promise.all(c.map(o)).then(()=>d)}destroy(){const e=Array.from(this).map(([,e])=>e).filter((e)=>'function'==typeof e.destroy).map((e)=>e.destroy());return Promise.all(e)}_add(e,t){this._plugins.set(e,t);const o=e.pluginName;o&&(this._plugins.has(o)?Xm.warn('plugincollection-plugin-name-conflict: Two plugins with the same name were loaded.',{pluginName:o,plugin1:this._plugins.get(o).constructor,plugin2:e}):this._plugins.set(o,t))}}class Au{constructor(){this._commands=new Map}add(e,t){this._commands.set(e,t)}get(e){return this._commands.get(e)}execute(e,...t){const o=this.get(e);if(!o)throw new _s('commandcollection-command-not-found: Command does not exist.',{commandName:e});o.execute(...t)}*names(){yield*this._commands.keys()}*commands(){yield*this._commands.values()}[Symbol.iterator](){return this._commands[Symbol.iterator]()}destroy(){for(const e of this.commands())e.destroy()}}window.CKEDITOR_TRANSLATIONS||(window.CKEDITOR_TRANSLATIONS={});class Tu{constructor(e){this.language=e||'en',this.t=(...e)=>this._t(...e)}_t(e,t){let o=Lt(this.language,e);return t&&(o=o.replace(/%(\d+)/g,(e,o)=>o<t.length?t[o]:e)),o}}class Pu{constructor(){this._consumables=new Map}add(e,t){let o;return e.is('text')||e.is('documentFragment')?void this._consumables.set(e,!0):void(this._consumables.has(e)?o=this._consumables.get(e):(o=new Eu,this._consumables.set(e,o)),o.add(t))}test(e,t){const o=this._consumables.get(e);return void 0===o?null:e.is('text')||e.is('documentFragment')?o:o.test(t)}consume(e,t){return!!this.test(e,t)&&(e.is('text')||e.is('documentFragment')?this._consumables.set(e,!1):this._consumables.get(e).consume(t),!0)}revert(e,t){const o=this._consumables.get(e);o!==void 0&&(e.is('text')||e.is('documentFragment')?this._consumables.set(e,!0):o.revert(t))}static consumablesFromElement(e){const t={name:!0,attributes:[],classes:[],styles:[]},o=e.getAttributeKeys();for(const n of o)'style'!=n&&'class'!=n&&t.attributes.push(n);const n=e.getClassNames();for(const o of n)t.classes.push(o);const i=e.getStyleNames();for(const o of i)t.styles.push(o);return t}static createFrom(e,t){if(t||(t=new Pu),e.is('text'))return t.add(e),t;e.is('element')&&t.add(e,Pu.consumablesFromElement(e)),e.is('documentFragment')&&t.add(e);for(const o of e.getChildren())t=Pu.createFrom(o,t);return t}}class Eu{constructor(){this._canConsumeName=null,this._consumables={attributes:new Map,styles:new Map,classes:new Map}}add(e){for(const t in e.name&&(this._canConsumeName=!0),this._consumables)t in e&&this._add(t,e[t])}test(e){if(e.name&&!this._canConsumeName)return this._canConsumeName;for(const t in this._consumables)if(t in e){const o=this._test(t,e[t]);if(!0!==o)return o}return!0}consume(e){for(const t in e.name&&(this._canConsumeName=!1),this._consumables)t in e&&this._consume(t,e[t])}revert(e){for(const t in e.name&&(this._canConsumeName=!0),this._consumables)t in e&&this._revert(t,e[t])}_add(e,t){const o=Sl(t)?t:[t],n=this._consumables[e];for(const i of o){if('attributes'===e&&('class'===i||'style'===i))throw new _s('viewconsumable-invalid-attribute: Classes and styles should be handled separately.');n.set(i,!0)}}_test(e,t){const o=Sl(t)?t:[t],n=this._consumables[e];for(const i of o)if('attributes'===e&&('class'===i||'style'===i)){const e='class'==i?'classes':'styles',t=this._test(e,[...this._consumables[e].keys()]);if(!0!==t)return t}else{const e=n.get(i);if(e===void 0)return null;if(!e)return!1}return!0}_consume(e,t){const o=Sl(t)?t:[t],n=this._consumables[e];for(const i of o)if('attributes'===e&&('class'===i||'style'===i)){const e='class'==i?'classes':'styles';this._consume(e,[...this._consumables[e].keys()])}else n.set(i,!1)}_revert(e,t){const o=Sl(t)?t:[t],n=this._consumables[e];for(const i of o)if('attributes'===e&&('class'===i||'style'===i)){const e='class'==i?'classes':'styles';this._revert(e,[...this._consumables[e].keys()])}else{const e=n.get(i);!1===e&&n.set(i,!0)}}}class Su{constructor(){this._sourceDefinitions={},this.decorate('checkChild'),this.decorate('checkAttribute'),this.on('checkAttribute',(e,t)=>{t[0]=new Ou(t[0])},{priority:'highest'}),this.on('checkChild',(e,t)=>{t[0]=new Ou(t[0]),t[1]=this.getDefinition(t[1])},{priority:'highest'})}register(e,t){if(this._sourceDefinitions[e])throw new _s('schema-cannot-register-item-twice: A single item cannot be registered twice in the schema.',{itemName:e});this._sourceDefinitions[e]=[Object.assign({},t)],this._clearCache()}extend(e,t){if(!this._sourceDefinitions[e])throw new _s('schema-cannot-extend-missing-item: Cannot extend an item which was not registered yet.',{itemName:e});this._sourceDefinitions[e].push(Object.assign({},t)),this._clearCache()}getDefinitions(){return this._compiledDefinitions||this._compile(),this._compiledDefinitions}getDefinition(e){let t;return t='string'==typeof e?e:e.is&&(e.is('text')||e.is('textProxy'))?'$text':e.name,this.getDefinitions()[t]}isRegistered(e){return!!this.getDefinition(e)}isBlock(e){const t=this.getDefinition(e);return!!(t&&t.isBlock)}isLimit(e){const t=this.getDefinition(e);return!!t&&!!(t.isLimit||t.isObject)}isObject(e){const t=this.getDefinition(e);return!!(t&&t.isObject)}checkChild(e,t){return!!t&&this._checkContextMatch(t,e)}checkAttribute(e,t){const o=this.getDefinition(e.last);return!!o&&o.allowAttributes.includes(t)}checkMerge(e,t=null){if(e instanceof uu){const t=e.nodeBefore,o=e.nodeAfter;if(!(t instanceof du))throw new _s('schema-check-merge-no-element-before: The node before the merge position must be an element.');if(!(o instanceof du))throw new _s('schema-check-merge-no-element-after: The node after the merge position must be an element.');return this.checkMerge(t,o)}for(const o of t.getChildren())if(!this.checkChild(e,o))return!1;return!0}addChildCheck(e){this.on('checkChild',(t,[o,n])=>{if(n){const i=e(o,n);'boolean'==typeof i&&(t.stop(),t.return=i)}},{priority:'high'})}addAttributeCheck(e){this.on('checkAttribute',(t,[o,n])=>{const i=e(o,n);'boolean'==typeof i&&(t.stop(),t.return=i)},{priority:'high'})}getLimitElement(e){let t=Array.from(e.getRanges()).reduce((e,t)=>{const o=t.getCommonAncestor();return e?e.getCommonAncestor(o,{includeSelf:!0}):o},null);for(;!this.isLimit(t)&&t.parent;)t=t.parent;return t}checkAttributeInSelection(e,t){if(e.isCollapsed)return this.checkAttribute([...e.getFirstPosition().getAncestors(),'$text'],t);else{const o=e.getRanges();for(const e of o)for(const o of e)if(this.checkAttribute(o.item,t))return!0}return!1}getValidRanges(e,t){const o=[];for(const n of e){let e=n.start,i=n.start;const r=n.end;for(const r of n.getWalker())this.checkAttribute(r.item,t)||(!i.isEqual(e)&&o.push(new pu(i,e)),i=r.nextPosition),e=r.nextPosition;i&&!i.isEqual(r)&&o.push(new pu(i,r))}return o}getNearestSelectionRange(e,t='both'){if(this.checkChild(e,'$text'))return new pu(e);let o,n;('both'==t||'backward'==t)&&(o=new cu({startPosition:e,direction:'backward'})),('both'==t||'forward'==t)&&(n=new cu({startPosition:e}));for(const i of to(o,n)){const e=i.walker==o?'elementEnd':'elementStart',t=i.value;if(t.type==e&&this.isObject(t.item))return pu.createOn(t.item);if(this.checkChild(t.nextPosition,'$text'))return new pu(t.nextPosition)}return null}findAllowedParent(e,t){for(let o=t.parent;o;){if(this.checkChild(o,e))return o;if(this.isLimit(o))return null;o=o.parent}return null}removeDisallowedAttributes(e,t){for(const o of e){for(const e of o.getAttributeKeys())this.checkAttribute(o,e)||t.removeAttribute(e,o);o.is('element')&&this.removeDisallowedAttributes(o.getChildren(),t)}}_clearCache(){this._compiledDefinitions=null}_compile(){const e={},t=this._sourceDefinitions,o=Object.keys(t);for(const n of o)e[n]=qt(t[n],n);for(const t of o)Wt(e,t);for(const t of o)Ut(e,t);for(const t of o)Ht(e,t),Kt(e,t);for(const t of o)Gt(e,t),$t(e,t);this._compiledDefinitions=e}_checkContextMatch(e,t,o=t.length-1){const n=t.getItem(o);if(!e.allowIn.includes(n.name))return!1;else if(0==o)return!0;else{const e=this.getDefinition(n);return this._checkContextMatch(e,t,o-1)}}}f(Su,Mc);class Ou{constructor(e){return e instanceof Ou?e:void('string'==typeof e?e=[e]:!Array.isArray(e)&&(e=e.getAncestors({includeSelf:!0})),e[0]&&'string'!=typeof e[0]&&e[0].is('documentFragment')&&e.shift(),this._items=e.map(eo))}get length(){return this._items.length}get last(){return this._items[this._items.length-1]}[Symbol.iterator](){return this._items[Symbol.iterator]()}push(e){const t=new Ou([e]);return t._items=[...this._items,...t._items],t}getItem(e){return this._items[e]}*getNames(){yield*this._items.map((e)=>e.name)}endsWith(e){return Array.from(this.getNames()).join(' ').endsWith(e)}}class Iu{constructor(e={}){this._removeIfEmpty=new Set,this._modelCursor=null,this.conversionApi=Object.assign({},e),this.conversionApi.convertItem=this._convertItem.bind(this),this.conversionApi.convertChildren=this._convertChildren.bind(this),this.conversionApi.splitToAllowedParent=this._splitToAllowedParent.bind(this)}convert(e,t,o=['$root']){this.fire('viewCleanup',e),this._modelCursor=no(o,t),this.conversionApi.writer=t,this.conversionApi.consumable=Pu.createFrom(e),this.conversionApi.store={};const{modelRange:n}=this._convertItem(e,this._modelCursor),i=t.createDocumentFragment();if(n){this._removeEmptyElements();for(const e of Array.from(this._modelCursor.parent.getChildren()))t.append(e,i);i.markers=oo(i,t)}return this._modelCursor=null,this._removeIfEmpty.clear(),this.conversionApi.writer=null,this.conversionApi.store=null,i}_convertItem(e,t){const o=Object.assign({viewItem:e,modelCursor:t,modelRange:null});if(e.is('element')?this.fire('element:'+e.name,o,this.conversionApi):e.is('text')?this.fire('text',o,this.conversionApi):this.fire('documentFragment',o,this.conversionApi),o.modelRange&&!(o.modelRange instanceof pu))throw new _s('view-conversion-dispatcher-incorrect-result: Incorrect conversion result was dropped.');return{modelRange:o.modelRange,modelCursor:o.modelCursor}}_convertChildren(e,t){const o=new pu(t);let n=t;for(const i of Array.from(e.getChildren())){const e=this._convertItem(i,n);e.modelRange instanceof pu&&(o.end=e.modelRange.end,n=e.modelCursor)}return{modelRange:o,modelCursor:n}}_splitToAllowedParent(e,t){const o=this.conversionApi.schema.findAllowedParent(e,t);if(!o)return null;if(o===t.parent)return{position:t};if(this._modelCursor.parent.getAncestors().includes(o))return null;const n=this.conversionApi.writer.split(t,o);for(const o of n.range.getPositions())o.isEqual(n.position)||this._removeIfEmpty.add(o.parent);return{position:n.position,cursorParent:n.range.end.parent}}_removeEmptyElements(){let e=!1;for(const t of this._removeIfEmpty)t.isEmpty&&(this.conversionApi.writer.remove(t),this._removeIfEmpty.delete(t),e=!0);e&&this._removeEmptyElements()}}f(Iu,Ps);class Ru{constructor(e,t){this.model=e,this.processor=t,this.mapper=new gu,this.downcastDispatcher=new hu({mapper:this.mapper}),this.downcastDispatcher.on('insert:$text',It(),{priority:'lowest'}),this.upcastDispatcher=new Iu({schema:e.schema}),this.upcastDispatcher.on('text',bo(),{priority:'lowest'}),this.upcastDispatcher.on('element',ho(),{priority:'lowest'}),this.upcastDispatcher.on('documentFragment',ho(),{priority:'lowest'}),this.decorate('init')}get(e='main'){return this.stringify(this.model.document.getRoot(e))}stringify(e){const t=this.toView(e);return this.processor.toData(t)}toView(e){const t=pu.createIn(e),o=new rm,n=new am(new $c());if(this.mapper.bindElements(e,o),this.downcastDispatcher.convertInsert(t,n),!e.is('documentFragment')){const t=ko(e);for(const[e,o]of t)this.downcastDispatcher.convertMarkerAdd(e,o,n)}return this.mapper.clearBindings(),o}init(e,t='main'){if(this.model.document.version)throw new _s('datacontroller-init-document-not-empty: Trying to set initial data to not empty document.');const o=this.model.document.getRoot(t);return this.model.enqueueChange('transparent',(t)=>{t.insert(this.parse(e,o),o)}),Promise.resolve()}set(e,t='main'){const o=this.model.document.getRoot(t);this.model.enqueueChange('transparent',(t)=>{t.setSelection(null),t.removeSelectionAttribute(this.model.document.selection.getAttributeKeys()),t.remove(pu.createIn(o)),t.insert(this.parse(e,o),o)})}parse(e,t='$root'){const o=this.processor.toView(e);return this.toModel(o,t)}toModel(e,t='$root'){return this.model.change((o)=>this.upcastDispatcher.convert(e,o,t))}destroy(){}}f(Ru,Mc);class Vu{constructor(){this._dispatchersGroups=new Map}register(e,t){if(this._dispatchersGroups.has(e))throw new _s('conversion-register-group-exists: Trying to register a group name that was already registered.');this._dispatchersGroups.set(e,t)}for(e){const t=this._getDispatchers(e);return{add(e){return _o(t,e),this}}}elementToElement(e){this.for('downcast').add(xt(e));for(const{model:t,view:o}of wo(e))this.for('upcast').add(io({model:t,view:o,converterPriority:e.converterPriority}))}attributeToElement(e){this.for('downcast').add(Ct(e));for(const{model:t,view:o}of wo(e))this.for('upcast').add(ro({view:o,model:t,priority:e.priority}))}attributeToAttribute(e){this.for('downcast').add(At(e));for(const{model:t,view:o}of wo(e))this.for('upcast').add(ao({view:o,model:t}))}_getDispatchers(e){const t=this._dispatchersGroups.get(e);if(!t)throw new _s('conversion-for-unknown-group: Trying to add a converter to an unknown dispatchers group.');return t}}class Fu{constructor(e){this.baseVersion=e,this.isDocumentOperation=null!==this.baseVersion}_validate(){}toJSON(){const e=$d(this,!0);return e.__className=this.constructor.className,delete e.delta,delete e.isDocumentOperation,e}static get className(){return'engine.model.operation.Operation'}static fromJSON(e){return new this(e.baseVersion)}}class Nu{constructor(e){this.markers=new Map,this._children=new lu,e&&this._insertChild(0,e)}[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(e){return'documentFragment'==e}getChild(e){return this._children.getNode(e)}getChildren(){return this._children[Symbol.iterator]()}getChildIndex(e){return this._children.getNodeIndex(e)}getChildStartOffset(e){return this._children.getNodeStartOffset(e)}getPath(){return[]}getNodeByPath(e){let t=this;for(const o of e)t=t.getChild(t.offsetToIndex(o));return t}offsetToIndex(e){return this._children.offsetToIndex(e)}toJSON(){const e=[];for(const t of this._children)e.push(t.toJSON());return e}static fromJSON(e){const t=[];for(const o of e)o.name?t.push(du.fromJSON(o)):t.push(au.fromJSON(o));return new Nu(t)}_appendChild(e){this._insertChild(this.childCount,e)}_insertChild(e,t){const o=yo(t);for(const n of o)null!==n.parent&&n._remove(),n.parent=this;this._children._insertNodes(e,o)}_removeChildren(e,t=1){const o=this._children._removeNodes(e,t);for(const n of o)n.parent=null;return o}}var Du=function(e,t){return Bm(e,t)};class Mu extends Fu{constructor(e,t,o,n,i){super(i),this.range=pu.createFromRange(e),this.key=t,this.oldValue=o===void 0?null:o,this.newValue=n===void 0?null:n}get type(){return null===this.oldValue?'addAttribute':null===this.newValue?'removeAttribute':'changeAttribute'}clone(){return new Mu(this.range,this.key,this.oldValue,this.newValue,this.baseVersion)}getReversed(){return new Mu(this.range,this.key,this.newValue,this.oldValue,this.baseVersion+1)}_validate(){for(const e of this.range.getItems()){if(null!==this.oldValue&&!Du(e.getAttribute(this.key),this.oldValue))throw new _s('attribute-operation-wrong-old-value: Changed node has different attribute value than operation\'s old attribute value.',{item:e,key:this.key,value:this.oldValue});if(null===this.oldValue&&null!==this.newValue&&e.hasAttribute(this.key))throw new _s('attribute-operation-attribute-exists: The attribute with given key already exists.',{node:e,key:this.key})}}_execute(){Du(this.oldValue,this.newValue)||To(this.range,this.key,this.newValue)}static get className(){return'engine.model.operation.AttributeOperation'}static fromJSON(e,t){return new Mu(pu.fromJSON(e.range,t),e.key,e.oldValue,e.newValue,e.baseVersion)}}class Bu extends Fu{constructor(e,t,o,n){super(n),this.sourcePosition=uu.createFromPosition(e),this.howMany=t,this.targetPosition=uu.createFromPosition(o),this.isSticky=!1}get type(){return'move'}clone(){const e=new this.constructor(this.sourcePosition,this.howMany,this.targetPosition,this.baseVersion);return e.isSticky=this.isSticky,e}getMovedRangeStart(){return this.targetPosition._getTransformedByDeletion(this.sourcePosition,this.howMany)}getReversed(){const e=this.sourcePosition._getTransformedByInsertion(this.targetPosition,this.howMany),t=new this.constructor(this.getMovedRangeStart(),this.howMany,e,this.baseVersion+1);return t.isSticky=this.isSticky,t}_validate(){const e=this.sourcePosition.parent,t=this.targetPosition.parent,o=this.sourcePosition.offset,n=this.targetPosition.offset;if(!e||!t)throw new _s('move-operation-position-invalid: Source position or target position is invalid.');else if(o+this.howMany>e.maxOffset)throw new _s('move-operation-nodes-do-not-exist: The nodes which should be moved do not exist.');else if(e===t&&o<n&&n<o+this.howMany)throw new _s('move-operation-range-into-itself: Trying to move a range of nodes to the inside of that range.');else if(this.sourcePosition.root==this.targetPosition.root&&'prefix'==A(this.sourcePosition.getParentPath(),this.targetPosition.getParentPath())){const e=this.sourcePosition.path.length-1;if(this.targetPosition.path[e]>=o&&this.targetPosition.path[e]<o+this.howMany)throw new _s('move-operation-node-into-itself: Trying to move a range of nodes into one of nodes from that range.')}}_execute(){Ao(pu.createFromPositionAndShift(this.sourcePosition,this.howMany),this.targetPosition)}static get className(){return'engine.model.operation.MoveOperation'}static fromJSON(e,t){const o=uu.fromJSON(e.sourcePosition,t),n=uu.fromJSON(e.targetPosition,t),i=new this(o,e.howMany,n,e.baseVersion);return e.isSticky&&(i.isSticky=!0),i}}class Lu extends Bu{get position(){return this.targetPosition}set position(e){this.targetPosition=e}get type(){return'reinsert'}getReversed(){const e=this.sourcePosition._getTransformedByInsertion(this.targetPosition,this.howMany);return new zu(this.getMovedRangeStart(),this.howMany,e,this.baseVersion+1)}_validate(){if(super._validate(),!this.sourcePosition.root.document)throw new _s('reinsert-operation-on-detached-item: Cannot reinsert detached item.');if(!this.targetPosition.root.document)throw new _s('reinsert-operation-to-detached-parent: Cannot reinsert item to detached parent.')}static get className(){return'engine.model.operation.ReinsertOperation'}}class zu extends Bu{get type(){return'remove'}getReversed(){const e=this.sourcePosition._getTransformedByInsertion(this.targetPosition,this.howMany);return new Lu(this.getMovedRangeStart(),this.howMany,e,this.baseVersion+1)}_validate(){if(super._validate(),!this.sourcePosition.root.document)throw new _s('remove-operation-on-detached-item: Cannot remove detached item.')}static get className(){return'engine.model.operation.RemoveOperation'}}class ju extends Fu{constructor(e,t,o){super(o),this.position=uu.createFromPosition(e),this.nodes=new lu(Po(t))}get type(){return'insert'}clone(){const e=new lu([...this.nodes].map((e)=>e._clone(!0)));return new ju(this.position,e,this.baseVersion)}getReversed(){const e=this.position.root.document.graveyard,t=new uu(e,[0]);return new zu(this.position,this.nodes.maxOffset,t,this.baseVersion+1)}_validate(){const e=this.position.parent;if(!e||e.maxOffset<this.position.offset)throw new _s('insert-operation-position-invalid: Insertion position is invalid.')}_execute(){const e=this.nodes;this.nodes=new lu([...e].map((e)=>e._clone(!0))),xo(this.position,e)}static get className(){return'engine.model.operation.InsertOperation'}static fromJSON(e,t){const o=[];for(const n of e.nodes)n.name?o.push(du.fromJSON(n)):o.push(au.fromJSON(n));return new ju(uu.fromJSON(e.position,t),o,e.baseVersion)}}class qu extends Fu{constructor(e,t,o,n,i,r){super(i),this.name=e,this.oldRange=t?pu.createFromRange(t):null,this.newRange=o?pu.createFromRange(o):null,this.affectsData=r,this._markers=n}get type(){return'marker'}clone(){return new qu(this.name,this.oldRange,this.newRange,this._markers,this.baseVersion,this.affectsData)}getReversed(){return new qu(this.name,this.newRange,this.oldRange,this._markers,this.baseVersion+1,this.affectsData)}_execute(){const e=this.newRange?'_set':'_remove';this._markers[e](this.name,this.newRange,!0,this.affectsData)}toJSON(){const e=super.toJSON();return delete e._markers,e}static get className(){return'engine.model.operation.MarkerOperation'}static fromJSON(e,t){return new qu(e.name,e.oldRange?pu.fromJSON(e.oldRange,t):null,e.newRange?pu.fromJSON(e.newRange,t):null,t.model.markers,e.baseVersion,e.affectsData)}}class Wu extends Fu{get type(){return'noop'}clone(){return new Wu(this.baseVersion)}getReversed(){return new Wu(this.baseVersion+1)}_execute(){}static get className(){return'engine.model.operation.NoOperation'}}class Uu extends Fu{constructor(e,t,o,n){super(n),this.position=e,this.oldName=t,this.newName=o}get type(){return'rename'}clone(){return new Uu(uu.createFromPosition(this.position),this.oldName,this.newName,this.baseVersion)}getReversed(){return new Uu(uu.createFromPosition(this.position),this.newName,this.oldName,this.baseVersion+1)}_validate(){const e=this.position.nodeAfter;if(!(e instanceof du))throw new _s('rename-operation-wrong-position: Given position is invalid or node after it is not an instance of Element.');else if(e.name!==this.oldName)throw new _s('rename-operation-wrong-name: Element to change has different name than operation\'s old name.')}_execute(){const e=this.position.nodeAfter;e.name=this.newName}static get className(){return'engine.model.operation.RenameOperation'}static fromJSON(e,t){return new Uu(uu.fromJSON(e.position,t),e.oldName,e.newName,e.baseVersion)}}class Hu extends Fu{constructor(e,t,o,n,i){super(i),this.root=e,this.key=t,this.oldValue=o,this.newValue=n}get type(){return null===this.oldValue?'addRootAttribute':null===this.newValue?'removeRootAttribute':'changeRootAttribute'}clone(){return new Hu(this.root,this.key,this.oldValue,this.newValue,this.baseVersion)}getReversed(){return new Hu(this.root,this.key,this.newValue,this.oldValue,this.baseVersion+1)}_validate(){if(this.root!=this.root.root||this.root.is('documentFragment'))throw new _s('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 _s('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 _s('rootattribute-operation-attribute-exists: The attribute with given key already exists.',{root:this.root,key:this.key})}_execute(){null===this.newValue?this.root._removeAttribute(this.key):this.root._setAttribute(this.key,this.newValue)}static get className(){return'engine.model.operation.RootAttributeOperation'}static fromJSON(e,t){if(!t.getRoot(e.root))throw new _s('rootattribute-operation-fromjson-no-root: Cannot create RootAttributeOperation. Root with specified name does not exist.',{rootName:e});return new Hu(t.getRoot(e.root),e.key,e.oldValue,e.newValue,e.baseVersion)}}const Ku={};Ku[Mu.className]=Mu,Ku[ju.className]=ju,Ku[qu.className]=qu,Ku[Bu.className]=Bu,Ku[Wu.className]=Wu,Ku[Fu.className]=Fu,Ku[Lu.className]=Lu,Ku[zu.className]=zu,Ku[Uu.className]=Uu,Ku[Hu.className]=Hu;class Gu{static fromJSON(e,t){return Ku[e.__className].fromJSON(e,t)}}const $u=new Map;class Ju{static fromJSON(e,t){if(!$u.has(e.__className))throw new _s('delta-fromjson-no-deserializer: This delta has no defined deserializer',{name:e.__className});const o=$u.get(e.__className),n=new o;for(const o of e.operations)n.addOperation(Gu.fromJSON(o,t));for(const o in e)'__className'!=o&&void 0===n[o]&&(n[o]=e[o]);return n}static register(e){$u.set(e.className,e)}}class Qu{constructor(){this.batch=null,this.operations=[]}get baseVersion(){return 0<this.operations.length?this.operations[0].baseVersion:null}set baseVersion(e){for(const t of this.operations)t.baseVersion=e++}get _reverseDeltaClass(){return Qu}addOperation(e){return e.delta=this,this.operations.push(e),e}clone(){const e=new this.constructor;for(const t of this.operations)e.addOperation(t.clone());return e}getReversed(){const e=new this._reverseDeltaClass;for(const t of this.operations)e.addOperation(t.getReversed());e.operations.reverse();for(let t=0;t<e.operations.length;t++)e.operations[t].baseVersion=this.operations[this.operations.length-1].baseVersion+t+1;return e}toJSON(){const e=$d(this);return e.__className=this.constructor.className,delete e.batch,e}static get className(){return'engine.model.delta.Delta'}}Ju.register(Qu);class Yu extends Qu{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 e=null,t=null;for(const o of this.operations)o instanceof Wu||((null===e||e.isAfter(o.range.start))&&(e=o.range.start),(null===t||t.isBefore(o.range.end))&&(t=o.range.end));return e&&t?(this._range=new pu(e,t),this._range):null}get _reverseDeltaClass(){return Yu}toJSON(){const e=super.toJSON();return delete e._range,e}static get className(){return'engine.model.delta.AttributeDelta'}}Ju.register(Yu);class Xu extends Qu{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 Bu?this.operations[1]:null}get _reverseDeltaClass(){return Zu}static get className(){return'engine.model.delta.SplitDelta'}}Ju.register(Xu);class Zu extends Qu{get type(){return'merge'}get position(){return this._removeOperation?this._removeOperation.sourcePosition:null}get _removeOperation(){return this.operations[1]||null}get _reverseDeltaClass(){return Xu}static get className(){return'engine.model.delta.MergeDelta'}}Ju.register(Zu);class ep extends Qu{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 ep}static get className(){return'engine.model.delta.MoveDelta'}}Ju.register(ep);class tp extends ep{static get className(){return'engine.model.delta.RemoveDelta'}}Ju.register(tp);class op extends Qu{get type(){return'rename'}get _reverseDeltaClass(){return op}static get className(){return'engine.model.delta.RenameDelta'}}Ju.register(op);class np extends Qu{get type(){return'wrap'}get range(){const e=this._moveOperation;return e?pu.createFromPositionAndShift(e.sourcePosition,e.howMany):null}get howMany(){const e=this.range;return e?e.end.offset-e.start.offset:0}get _insertOperation(){return this.operations[0]||null}get _moveOperation(){return this.operations[1]||null}get _reverseDeltaClass(){return ip}static get className(){return'engine.model.delta.WrapDelta'}}Ju.register(np);class ip extends Qu{get type(){return'unwrap'}get position(){return this._moveOperation?this._moveOperation.targetPosition:null}get _moveOperation(){return this.operations[0]||null}get _reverseDeltaClass(){return np}static get className(){return'engine.model.delta.UnwrapDelta'}}Ju.register(ip);class rp extends Qu{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 tp}static get className(){return'engine.model.delta.InsertDelta'}}Ju.register(rp);class ap extends rp{static get className(){return'engine.model.delta.WeakInsertDelta'}}Ju.register(ap);var sp=function(e,t,o={isStrong:!1}){let n,i;e instanceof ju?n=lp.InsertOperation:e instanceof Mu?n=lp.AttributeOperation:e instanceof Hu?n=lp.RootAttributeOperation:e instanceof Uu?n=lp.RenameOperation:e instanceof qu?n=lp.MarkerOperation:e instanceof Bu?n=lp.MoveOperation:i=Io,n&&(t instanceof ju?i=n.InsertOperation:t instanceof Mu?i=n.AttributeOperation:t instanceof Hu?i=n.RootAttributeOperation:t instanceof Uu?i=n.RenameOperation:t instanceof qu?i=n.MarkerOperation:t instanceof Bu?i=n.MoveOperation:i=Io);const r=i(e,t,o);return Ro(e.baseVersion,r)};const lp={InsertOperation:{InsertOperation(e,t,o){const n=e.clone(),i=void 0===o.insertBefore?!o.isStrong:o.insertBefore;return n.position=n.position._getTransformedByInsertion(t.position,t.nodes.maxOffset,i),[n]},AttributeOperation:Io,RootAttributeOperation:Io,RenameOperation:Io,MarkerOperation:Io,MoveOperation(e,t,o){const n=e.clone(),i=void 0===o.insertBefore?!o.isStrong:o.insertBefore;return n.position=e.position._getTransformedByMove(t.sourcePosition,t.targetPosition,t.howMany,i,t.isSticky&&!o.forceNotSticky),[n]}},AttributeOperation:{InsertOperation(e,t){const o=e.range._getTransformedByInsertion(t.position,t.nodes.maxOffset,!0,!1);return o.reverse().map((t)=>new Mu(t,e.key,e.oldValue,e.newValue,e.baseVersion))},AttributeOperation(e,t,o){if(e.key===t.key){const n=e.range.getDifference(t.range).map((t)=>new Mu(t,e.key,e.oldValue,e.newValue,e.baseVersion)),i=e.range.getIntersection(t.range);return i&&(o.isStrong?n.push(new Mu(i,t.key,t.newValue,e.newValue,e.baseVersion)):0===n.length&&n.push(new Wu(0))),n}return[e.clone()]},RootAttributeOperation:Io,RenameOperation:Io,MarkerOperation:Io,MoveOperation(e,t){const o=pu.createFromPositionAndShift(t.sourcePosition,t.howMany);let n=[];const i=Fo(e.range.getDifference(o)),r=e.range.getIntersection(o);return null!==i&&(i.start=i.start._getTransformedByDeletion(t.sourcePosition,t.howMany),i.end=i.end._getTransformedByDeletion(t.sourcePosition,t.howMany),n=i._getTransformedByInsertion(t.getMovedRangeStart(),t.howMany,!0,!1).reverse()),null!==r&&(r.start=r.start._getCombined(t.sourcePosition,t.getMovedRangeStart()),r.end=r.end._getCombined(t.sourcePosition,t.getMovedRangeStart()),n.push(r)),n.map((t)=>new Mu(t,e.key,e.oldValue,e.newValue,e.baseVersion))}},RootAttributeOperation:{InsertOperation:Io,AttributeOperation:Io,RootAttributeOperation(e,t,o){return e.root!==t.root||e.key!==t.key||(e.newValue===t.newValue||o.isStrong)&&e.newValue!==t.newValue?[e.clone()]:[new Wu(e.baseVersion)]},RenameOperation:Io,MarkerOperation:Io,MoveOperation:Io},RenameOperation:{InsertOperation(e,t){const o=e.clone();return o.position=o.position._getTransformedByInsertion(t.position,t.nodes.maxOffset,!0),[o]},AttributeOperation:Io,RootAttributeOperation:Io,RenameOperation(e,t,o){const n=e.clone();if(e.position.isEqual(t.position))if(o.isStrong)n.oldName=t.newName;else return[new Wu(e.baseVersion)];return[n]},MarkerOperation:Io,MoveOperation(e,t){const o=e.clone(),n=o.position.isEqual(t.sourcePosition);return o.position=o.position._getTransformedByMove(t.sourcePosition,t.targetPosition,t.howMany,!0,n),[o]}},MarkerOperation:{InsertOperation(e,t){const o=e.clone();return o.oldRange&&(o.oldRange=o.oldRange._getTransformedByInsertion(t.position,t.nodes.maxOffset,!1,!1)[0]),o.newRange&&(o.newRange=o.newRange._getTransformedByInsertion(t.position,t.nodes.maxOffset,!1,!1)[0]),[o]},AttributeOperation:Io,RootAttributeOperation:Io,RenameOperation:Io,MarkerOperation(e,t,o){const n=e.clone();if(e.name==t.name)if(o.isStrong)n.oldRange=t.newRange;else return[new Wu(e.baseVersion)];return[n]},MoveOperation(e,t){const o=e.clone();if(o.oldRange){const e=o.oldRange._getTransformedByMove(t.sourcePosition,t.targetPosition,t.howMany);o.oldRange=pu.createFromRanges(e)}if(o.newRange){const e=o.newRange._getTransformedByMove(t.sourcePosition,t.targetPosition,t.howMany);o.newRange=pu.createFromRanges(e)}return[o]}},MoveOperation:{InsertOperation(e,t,o){let n=pu.createFromPositionAndShift(e.sourcePosition,e.howMany);const i=e.isSticky&&!o.forceNotSticky;n=n._getTransformedByInsertion(t.position,t.nodes.maxOffset,!1,i)[0];const r=void 0===o.insertBefore?!o.isStrong:o.insertBefore,a=new e.constructor(n.start,n.end.offset-n.start.offset,e.targetPosition._getTransformedByInsertion(t.position,t.nodes.maxOffset,r),e.baseVersion);return a.isSticky=e.isSticky,[a]},AttributeOperation:Io,RootAttributeOperation:Io,RenameOperation:Io,MarkerOperation:Io,MoveOperation(e,t,o){const n=pu.createFromPositionAndShift(e.sourcePosition,e.howMany),i=pu.createFromPositionAndShift(t.sourcePosition,t.howMany);let r=o.isStrong;const a=e.isSticky&&!o.forceNotSticky,s=void 0===o.insertBefore?!r:o.insertBefore,l=e.targetPosition._getTransformedByMove(t.sourcePosition,t.targetPosition,t.howMany,s,t.isSticky&&!o.forceNotSticky);if(Vo(e,t)&&Vo(t,e))return[t.getReversed()];const d=n.containsPosition(t.targetPosition)||n.start.isEqual(t.targetPosition)&&a||n.end.isEqual(t.targetPosition)&&a;if(d&&n.containsRange(i,!0))return n.start=n.start._getTransformedByMove(t.sourcePosition,t.targetPosition,t.howMany,!a),n.end=n.end._getTransformedByMove(t.sourcePosition,t.targetPosition,t.howMany,a),No([n],l,e);const c=i.containsPosition(e.targetPosition)||i.start.isEqual(e.targetPosition)&&t.isSticky&&!o.forceNotSticky||i.end.isEqual(e.targetPosition)&&t.isSticky&&!o.forceNotSticky;if(c&&i.containsRange(n,!0))return n.start=n.start._getCombined(t.sourcePosition,t.getMovedRangeStart()),n.end=n.end._getCombined(t.sourcePosition,t.getMovedRangeStart()),No([n],l,e);const m=A(e.sourcePosition.getParentPath(),t.sourcePosition.getParentPath());if('prefix'==m||'extension'==m)return n.start=n.start._getTransformedByMove(t.sourcePosition,t.targetPosition,t.howMany,!a),n.end=n.end._getTransformedByMove(t.sourcePosition,t.targetPosition,t.howMany,a),No([n],l,e);o.forceWeakRemove||(e instanceof zu&&!(t instanceof zu)?r=!0:!(e instanceof zu)&&t instanceof zu&&(r=!1));const u=[],p=n.getDifference(i);for(const n of p){n.start=n.start._getTransformedByDeletion(t.sourcePosition,t.howMany),n.end=n.end._getTransformedByDeletion(t.sourcePosition,t.howMany);const e='same'==A(n.start.getParentPath(),t.getMovedRangeStart().getParentPath()),o=n._getTransformedByInsertion(t.getMovedRangeStart(),t.howMany,e,a);u.push(...o)}const g=n.getIntersection(i);return null!==g&&r&&!d&&(g.start=g.start._getCombined(t.sourcePosition,t.getMovedRangeStart()),g.end=g.end._getCombined(t.sourcePosition,t.getMovedRangeStart()),0===u.length?u.push(g):1==u.length?i.start.isBefore(n.start)||i.start.isEqual(n.start)?u.unshift(g):u.push(g):u.splice(1,0,g)),0===u.length?[new Wu(e.baseVersion)]:No(u,l,e)}}};var ot=function(e,t,o){var n=-1,i=e.length;0>t&&(t=-t>i?0:i+t),o=o>i?i:o,0>o&&(o+=i),i=t>o?0:o-t>>>0,t>>>=0;for(var r=Array(i);++n<i;)r[n]=e[n+t];return r},dp=Math.ceil,cp=function(e){return Sl(e)||Pl(e)},mp=Mo,up=function(e,t,o){for(var n=e.length,i=t+(o?0:-1);o?i--:++i<n;){var r=e[i];if(r!==r)return i}return-1},pp=function(e,t,o){if(t!==t)return up(e,o);for(var n=o-1,i=e.length;++n<i;)if(e[n]===t)return n;return-1},gp=function(e,t){return!!e.length&&-1<pp(e,t,0)},fp=function(e,t,o){for(var n=-1,i=e.length;++n<i;)if(o(t,e[n]))return!0;return!1},hp=function(e,t){for(var o=-1,n=e.length,i=Array(n);++o<n;)i[o]=t(e[o],o,e);return i},bp=function(e){return 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uu(e.position.root,e.position.path.slice(0,-1));if(n||!(e._cloneOperation instanceof ju))return[e];for(const n of t.operations)if(n.range.containsPosition(i)||n.range.start.isEqual(i)){null===n.newValue?e._cloneOperation.nodes.getNode(0)._removeAttribute(n.key):e._cloneOperation.nodes.getNode(0)._setAttribute(n.key,n.newValue);break}return[e]}),of(ip,Xu,(e,t,o)=>t.position?e.position.root==t.position.root&&'same'===A(e.position.path,t.position.getParentPath())?[t.getReversed(),e.clone()]:nf(e,t,o):nf(e,t,o)),of(ap,Yu,(e,t)=>{const o=[e.clone()];return t.range.containsPosition(e.position)&&o.push(en(e,t)),o}),of(np,Xu,(e,t,o)=>{if(!t.position)return nf(e,t,o);const n=e.range.start.root==t.position.root,i=n&&'same'===A(e.range.start.getParentPath(),t.position.getParentPath()),r=e.range.start.offset<t.position.offset&&e.range.end.offset>=t.position.offset;if(i&&r)return[t.getReversed(),e.clone()];if(n&&'same'===A(t.position.getParentPath(),e.range.end.getShiftedBy(-1).path)){const t=e.clone();return t._insertOperation.position.offset++,t._moveOperation.howMany++,t._moveOperation.targetPosition.path[t._moveOperation.targetPosition.path.length-2]++,[t]}return nf(e,t,o)}),of(op,Xu,(e,t,o)=>{const n=o.undoMode,i=nf(e,t,o);if(n||!(t._cloneOperation instanceof ju))return i;const r=t._cloneOperation.position.getShiftedBy(-1);if(r&&e.operations[0].position.isEqual(r)){const t=e.clone();t.operations[0].position=r.getShiftedBy(1),i.push(t)}return i}),of(Xu,op,(e,t,o)=>{e=e.clone();const n=o.undoMode;if(n||!(e._cloneOperation instanceof ju))return[e];const i=e._cloneOperation.position.getShiftedBy(-1);if(i&&!n&&t.operations[0].position.isEqual(i)){const o=t.clone();return o.operations[0].position=i.getShiftedBy(1),o.operations[0].oldName=e._cloneOperation.nodes.getNode(0).name,[e,o]}return[e]}),of(tp,Xu,(e,t,o)=>{const n=nf(e,t,o),i=t._cloneOperation.position||t._cloneOperation.targetPosition;if(!i)return nf(e,t,o);const r=o.undoMode;if(r)return n;for(const r of n)if(r instanceof tp){const e=r._moveOperation,t=e.sourcePosition.getShiftedBy(e.howMany);t.isEqual(i)&&(e.howMany+=1)}return n}),of(Xu,tp,(e,t,o)=>{const n=o.undoMode;if(n)return nf(e,t,o);const i=e._cloneOperation.position||e._cloneOperation.targetPosition;if(!i)return nf(e,t,o);t=t.clone();const r=t._moveOperation,a=r.sourcePosition.getShiftedBy(r.howMany);return a.isEqual(i)&&(r.howMany+=1),nf(e,t,o)});class rf{constructor(e='default'){this.deltas=[],this.type=e}get baseVersion(){for(const e of this.deltas)if(null!==e.baseVersion)return e.baseVersion;return null}addDelta(e){return e.batch=this,this.deltas.push(e),e}*getOperations(){for(const e of this.deltas)yield*e.operations}}class af extends Qu{static get className(){return'engine.model.delta.RootAttributeDelta'}}Ju.register(af);class sf extends Fu{constructor(e,t){super(null),this.sourcePosition=uu.createFromPosition(e),this.howMany=t}get type(){return'detach'}_validate(){if(this.sourcePosition.root.document)throw new _s('detach-operation-on-document-node: Cannot detach document node.')}_execute(){Co(pu.createFromPositionAndShift(this.sourcePosition,this.howMany))}static get className(){return'engine.model.operation.DetachOperation'}}class lf extends du{constructor(e,t,o='main'){super(t),this._doc=e,this.rootName=o}get document(){return this._doc}is(e,t){return t?'rootElement'==e&&t==this.name||super.is(e,t):'rootElement'==e||super.is(e)}toJSON(){return this.rootName}}class df{constructor(e,t){this.model=e,this.batch=t}createText(e,t){return new au(e,t)}createElement(e,t){return new du(e,t)}createDocumentFragment(){return new Nu}insert(e,t,o){this._assertWriterUsedCorrectly();const n=uu.createAt(t,o),i=e instanceof au&&!e.parent?new ap:new rp;if(e.parent){if(sn(e.root,n.root))return void this.move(pu.createOn(e),n);if(e.root.document)throw new Error('model-writer-insert-forbidden-move: Cannot move a node from a document to a different tree.');else this.remove(e)}const r=n.root.document?n.root.document.version:null,a=new ju(n,e,r);if(this.batch.addDelta(i),i.addOperation(a),this.model.applyOperation(a),e instanceof Nu)for(const[t,o]of e.markers){const e=uu.createAt(o.root),i=new pu(o.start._getCombined(e,n),o.end._getCombined(e,n));this.addMarker(t,{range:i,usingOperation:!0})}}insertText(e,t,o,n){t instanceof Nu||t instanceof du||t instanceof uu?this.insert(this.createText(e),t,o):this.insert(this.createText(e,t),o,n)}insertElement(e,t,o,n){t instanceof Nu||t instanceof du||t instanceof uu?this.insert(this.createElement(e),t,o):this.insert(this.createElement(e,t),o,n)}append(e,t){this.insert(e,t,'end')}appendText(e,t,o){t instanceof Nu||t instanceof du?this.insert(this.createText(e),t,'end'):this.insert(this.createText(e,t),o,'end')}appendElement(e,t,o){t instanceof Nu||t instanceof du?this.insert(this.createElement(e),t,'end'):this.insert(this.createElement(e,t),o,'end')}setAttribute(e,t,o){this._assertWriterUsedCorrectly(),o instanceof pu?on(this,e,t,o):nn(this,e,t,o)}setAttributes(e,t){for(const[o,n]of ut(e))this.setAttribute(o,n,t)}removeAttribute(e,t){this._assertWriterUsedCorrectly(),t instanceof pu?on(this,e,null,t):nn(this,e,null,t)}clearAttributes(e){this._assertWriterUsedCorrectly();const t=(e)=>{for(const t of e.getAttributeKeys())this.removeAttribute(t,e)};if(!(e instanceof pu))t(e);else for(const o of e.getItems())t(o)}move(e,t,o){if(this._assertWriterUsedCorrectly(),!(e instanceof pu))throw new _s('writer-move-invalid-range: Invalid range to move.');if(!e.isFlat)throw new _s('writer-move-range-not-flat: Range to move is not flat.');const n=uu.createAt(t,o);if(!sn(e.root,n.root))throw new _s('writer-move-different-document: Range is going to be moved between different documents.');const i=new ep;this.batch.addDelta(i);const r=e.root.document?e.root.document.version:null,a=new Bu(e.start,e.end.offset-e.start.offset,n,r);i.addOperation(a),this.model.applyOperation(a)}remove(e){this._assertWriterUsedCorrectly();const t=(e,t)=>{const o=new tp;this.batch.addDelta(o),an(e,t,o,this.model)};if(e instanceof pu){const o=e.getMinimalFlatRanges().reverse();for(const e of o)t(e.start,e.end.offset-e.start.offset)}else{const o=e.is('text')?e.offsetSize:1;t(uu.createBefore(e),o)}}merge(e){this._assertWriterUsedCorrectly();const t=new Zu;this.batch.addDelta(t);const o=e.nodeBefore,n=e.nodeAfter;if(!(o instanceof du))throw new _s('writer-merge-no-element-before: Node before merge position must be an element.');if(!(n instanceof du))throw new _s('writer-merge-no-element-after: Node after merge position must be an element.');const i=uu.createFromParentAndOffset(n,0),r=uu.createFromParentAndOffset(o,o.maxOffset),a=e.root.document?e.root.document.version:null,s=new Bu(i,n.maxOffset,r,a);s.isSticky=!0,t.addOperation(s),this.model.applyOperation(s),an(e,1,t,this.model)}rename(e,t){if(this._assertWriterUsedCorrectly(),!(e instanceof du))throw new _s('writer-rename-not-element-instance: Trying to rename an object which is not an instance of Element.');const o=new op;this.batch.addDelta(o);const n=e.root.document?e.root.document.version:null,i=new Uu(uu.createBefore(e),e.name,t,n);o.addOperation(i),this.model.applyOperation(i)}split(e,t){this._assertWriterUsedCorrectly();let o=e.parent;if(!o.parent)throw new _s('writer-split-element-no-parent: Element with no parent can not be split.');if(t||(t=o.parent),!e.parent.getAncestors({includeSelf:!0}).includes(t))throw new _s('writer-split-invalid-limit-element: Limit element is not a position ancestor.');let n,i;do{const t=new Xu;this.batch.addDelta(t);const r=new du(o.name,o.getAttributes()),a=o.root.document?o.root.document.version:null,s=new ju(uu.createAfter(o),r,a);t.addOperation(s),this.model.applyOperation(s);const l=null===a?null:a+1,d=new Bu(e,o.maxOffset-e.offset,uu.createFromParentAndOffset(r,0),l);d.isSticky=!0,t.addOperation(d),this.model.applyOperation(d),n||i||(n=o,i=r),e=uu.createBefore(r),o=e.parent}while(o!==t);return{position:e,range:new pu(uu.createAt(n,'end'),uu.createAt(i))}}wrap(e,t){if(this._assertWriterUsedCorrectly(),!e.isFlat)throw new _s('writer-wrap-range-not-flat: Range to wrap is not flat.');const o=t instanceof du?t:new du(t);if(0<o.childCount)throw new _s('writer-wrap-element-not-empty: Element to wrap with is not empty.');if(null!==o.parent)throw new _s('writer-wrap-element-attached: Element to wrap with is already attached to tree model.');const n=new np;this.batch.addDelta(n);const i=e.root.document?e.root.document.version:null,r=new ju(e.end,o,i);n.addOperation(r),this.model.applyOperation(r);const a=null===i?null:i+1,s=uu.createFromParentAndOffset(o,0),l=new Bu(e.start,e.end.offset-e.start.offset,s,a);n.addOperation(l),this.model.applyOperation(l)}unwrap(e){if(this._assertWriterUsedCorrectly(),null===e.parent)throw new _s('writer-unwrap-element-no-parent: Trying to unwrap an element which has no parent.');const t=new ip;this.batch.addDelta(t);const o=uu.createFromParentAndOffset(e,0),n=o.root.document?o.root.document.version:null,i=new Bu(o,e.maxOffset,uu.createBefore(e),n);i.isSticky=!0,t.addOperation(i),this.model.applyOperation(i),an(uu.createBefore(e),1,t,this.model)}addMarker(e,t){if(this._assertWriterUsedCorrectly(),!t||'boolean'!=typeof t.usingOperation)throw new _s('writer-addMarker-no-usingOperations: The options.usingOperations parameter is required when adding a new marker.');const o=t.usingOperation,n=t.range,i=void 0!==t.affectsData&&t.affectsData;if(this.model.markers.has(e))throw new _s('writer-addMarker-marker-exists: Marker with provided name already exists.');if(!n)throw new _s('writer-addMarker-no-range: Range parameter is required when adding a new marker.');return o?(rn(this,e,null,n,i),this.model.markers.get(e)):this.model.markers._set(e,n,o,i)}updateMarker(e,t={}){this._assertWriterUsedCorrectly();const o='string'==typeof e?e:e.name,n=this.model.markers.get(o);if(!n)throw new _s('writer-updateMarker-marker-not-exists: Marker with provided name does not exists.');const i='boolean'==typeof t.usingOperation,r='boolean'==typeof t.affectsData,a=r?t.affectsData:n.affectsData;if(!i&&!t.range&&!r)throw new _s('writer-updateMarker-wrong-options: One of the options is required - provide range, usingOperations or affectsData.');const s=n.getRange(),l=t.range?t.range:s;return i&&t.usingOperation!==n.managedUsingOperations?void(t.usingOperation?rn(this,o,null,l,a):(rn(this,o,s,null,a),this.model.markers._set(o,l,void 0,a))):void(n.managedUsingOperations?rn(this,o,s,l,a):this.model.markers._set(o,l,void 0,a))}removeMarker(e){this._assertWriterUsedCorrectly();const t='string'==typeof e?e:e.name;if(!this.model.markers.has(t))throw new _s('writer-removeMarker-no-marker: Trying to remove marker which does not exist.');const o=this.model.markers.get(t);if(!o.managedUsingOperations)return void this.model.markers._remove(t);const n=o.getRange();rn(this,t,n,null,o.affectsData)}setSelection(e,t,o){this._assertWriterUsedCorrectly(),this.model.document.selection._setTo(e,t,o)}setSelectionFocus(e,t){this._assertWriterUsedCorrectly(),this.model.document.selection._setFocus(e,t)}setSelectionAttribute(e,t){if(this._assertWriterUsedCorrectly(),'string'==typeof e)this._setSelectionAttribute(e,t);else for(const[t,o]of ut(e))this._setSelectionAttribute(t,o)}removeSelectionAttribute(e){if(this._assertWriterUsedCorrectly(),'string'==typeof e)this._removeSelectionAttribute(e);else for(const t of e)this._removeSelectionAttribute(t)}overrideSelectionGravity(){return this.model.document.selection._overrideGravity()}restoreSelectionGravity(e){this.model.document.selection._restoreGravity(e)}_setSelectionAttribute(e,t){const o=this.model.document.selection;if(o.isCollapsed&&o.anchor.parent.isEmpty){const n=wu._getStoreAttributeKey(e);this.setAttribute(n,t,o.anchor.parent)}o._setAttribute(e,t)}_removeSelectionAttribute(e){const t=this.model.document.selection;if(t.isCollapsed&&t.anchor.parent.isEmpty){const o=wu._getStoreAttributeKey(e);this.removeAttribute(o,t.anchor.parent)}t._removeAttribute(e)}_assertWriterUsedCorrectly(){if(this.model._currentWriter!==this)throw new _s('writer-incorrect-use: Trying to use a writer outside the change() block.')}}class cf{constructor(e){this._markerCollection=e,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(e){switch(e.type){case'insert':{if(this._isInInsertedElement(e.position.parent))return;this._markInsert(e.position.parent,e.position.offset,e.nodes.maxOffset);break}case'addAttribute':case'removeAttribute':case'changeAttribute':{for(const t of e.range.getItems())this._isInInsertedElement(t.parent)||this._markAttribute(t);break}case'remove':case'move':case'reinsert':{const t=this._isInInsertedElement(e.sourcePosition.parent),o=this._isInInsertedElement(e.targetPosition.parent);t||this._markRemove(e.sourcePosition.parent,e.sourcePosition.offset,e.howMany),o||this._markInsert(e.targetPosition.parent,e.getMovedRangeStart().offset,e.howMany);break}case'rename':{if(this._isInInsertedElement(e.position.parent))return;this._markRemove(e.position.parent,e.position.offset,1),this._markInsert(e.position.parent,e.position.offset,1);const t=pu.createFromPositionAndShift(e.position,1);for(const e of this._markerCollection.getMarkersIntersectingRange(t)){const t=e.getRange();this.bufferMarkerChange(e.name,t,t,e.affectsData)}break}}this._cachedChanges=null}bufferMarkerChange(e,t,o,n){const i=this._changedMarkers.get(e);i?(i.newRange=o,i.affectsData=n,null==i.oldRange&&null==i.newRange&&this._changedMarkers.delete(e)):this._changedMarkers.set(e,{oldRange:t,newRange:o,affectsData:n})}getMarkersToRemove(){const e=[];for(const[t,o]of this._changedMarkers)null!=o.oldRange&&e.push({name:t,range:o.oldRange});return e}getMarkersToAdd(){const e=[];for(const[t,o]of this._changedMarkers)null!=o.newRange&&e.push({name:t,range:o.newRange});return e}hasDataChanges(){for(const[,e]of this._changedMarkers)if(e.affectsData)return!0;return 0<this._changesInElement.size}getChanges(e={includeChangesInGraveyard:!1}){if(this._cachedChanges)return e.includeChangesInGraveyard?this._cachedChangesWithGraveyard.slice():this._cachedChanges.slice();const t=[];for(const o of this._changesInElement.keys()){const e=this._changesInElement.get(o).sort((e,t)=>e.offset===t.offset?e.type==t.type?0:'remove'==e.type?-1:1:e.offset<t.offset?-1:1),n=this._elementSnapshots.get(o),r=ln(o.getChildren()),a=dn(n.length,e);let s=0,i=0;for(const e of a)if('i'===e)t.push(this._getInsertDiff(o,s,r[s].name)),s++;else if('r'===e)t.push(this._getRemoveDiff(o,s,n[i].name)),i++;else if('a'===e){const e=r[s].attributes,a=n[i].attributes;let l;if('$text'==r[s].name)l=pu.createFromParentsAndOffsets(o,s,o,s+1);else{const e=o.offsetToIndex(s);l=pu.createFromParentsAndOffsets(o,s,o.getChild(e),0)}t.push(...this._getAttributesDiff(l,a,e)),s++,i++}else s++,i++}t.sort((e,t)=>e.position.root==t.position.root?e.position.isEqual(t.position)?e.changeCount<t.changeCount?-1:1:e.position.isBefore(t.position)?-1:1:e.position.root.rootName<t.position.root.rootName?-1:1);for(let o=1;o<t.length;o++){const e=t[o-1],n=t[o],i='remove'==e.type&&'remove'==n.type&&'$text'==e.name&&'$text'==n.name&&e.position.isEqual(n.position),r='insert'==e.type&&'insert'==n.type&&'$text'==e.name&&'$text'==n.name&&e.position.parent==n.position.parent&&e.position.offset+e.length==n.position.offset,a='attribute'==e.type&&'attribute'==n.type&&e.position.parent==n.position.parent&&e.range.isFlat&&n.range.isFlat&&e.position.offset+e.length==n.position.offset&&e.attributeKey==n.attributeKey&&e.attributeOldValue==n.attributeOldValue&&e.attributeNewValue==n.attributeNewValue;(i||r||a)&&(t[o-1].length++,a&&(t[o-1].range.end=t[o-1].range.end.getShiftedBy(1)),t.splice(o,1),o--)}for(const o of t)delete o.changeCount,'attribute'==o.type&&(delete o.position,delete o.length);return this._changeCount=0,this._cachedChangesWithGraveyard=t.slice(),this._cachedChanges=t.slice().filter(cn),e.includeChangesInGraveyard?this._cachedChangesWithGraveyard:this._cachedChanges}reset(){this._changesInElement.clear(),this._elementSnapshots.clear(),this._changedMarkers.clear(),this._cachedChanges=null}_markInsert(e,t,o){const n={type:'insert',offset:t,howMany:o,count:this._changeCount++};this._markChange(e,n)}_markRemove(e,t,o){const n={type:'remove',offset:t,howMany:o,count:this._changeCount++};this._markChange(e,n),this._removeAllNestedChanges(e,t,o)}_markAttribute(e){const t={type:'attribute',offset:e.startOffset,howMany:e.offsetSize,count:this._changeCount++};this._markChange(e.parent,t)}_markChange(e,t){this._makeSnapshot(e);const o=this._getChangesForElement(e);this._handleChange(t,o),o.push(t);for(let n=0;n<o.length;n++)1>o[n].howMany&&(o.splice(n,1),n--)}_getChangesForElement(e){let t;return this._changesInElement.has(e)?t=this._changesInElement.get(e):(t=[],this._changesInElement.set(e,t)),t}_makeSnapshot(e){this._elementSnapshots.has(e)||this._elementSnapshots.set(e,ln(e.getChildren()))}_handleChange(e,t){e.nodesToHandle=e.howMany;for(const o of t){const n=e.offset+e.howMany,i=o.offset+o.howMany;if('insert'==e.type&&('insert'==o.type&&(e.offset<=o.offset?o.offset+=e.howMany:e.offset<i&&(o.howMany+=e.nodesToHandle,e.nodesToHandle=0)),'remove'==o.type&&e.offset<o.offset&&(o.offset+=e.howMany),'attribute'==o.type))if(e.offset<=o.offset)o.offset+=e.howMany;else if(e.offset<i){const i=o.howMany;o.howMany=e.offset-o.offset,t.unshift({type:'attribute',offset:n,howMany:i-o.howMany,count:this._changeCount++})}if('remove'==e.type){if('insert'==o.type)if(n<=o.offset)o.offset-=e.howMany;else if(n<=i){if(e.offset<o.offset){const t=n-o.offset;o.offset=e.offset,o.howMany-=t,e.nodesToHandle-=t}else o.howMany-=e.nodesToHandle,e.nodesToHandle=0;}else if(e.offset<=o.offset)e.nodesToHandle-=o.howMany,o.howMany=0;else if(e.offset<i){const t=i-e.offset;o.howMany-=t,e.nodesToHandle-=t}if('remove'==o.type&&(n<=o.offset?o.offset-=e.howMany:e.offset<o.offset&&(e.nodesToHandle+=o.howMany,o.howMany=0)),'attribute'==o.type)if(n<=o.offset)o.offset-=e.howMany;else if(e.offset<o.offset){const t=n-o.offset;o.offset=e.offset,o.howMany-=t}else if(e.offset<i)if(n<=i){const n=o.howMany;o.howMany=e.offset-o.offset;const i=n-o.howMany-e.nodesToHandle;t.unshift({type:'attribute',offset:e.offset,howMany:i,count:this._changeCount++})}else o.howMany-=i-e.offset}if('attribute'==e.type){if('insert'==o.type)if(e.offset<o.offset&&n>o.offset){if(n>i){const e={type:'attribute',offset:i,howMany:n-i,count:this._changeCount++};this._handleChange(e,t),t.push(e)}e.nodesToHandle=o.offset-e.offset,e.howMany=e.nodesToHandle}else e.offset>=o.offset&&e.offset<i&&(n>i?(e.nodesToHandle=n-i,e.offset=i):e.nodesToHandle=0);'attribute'==o.type&&(e.offset>=o.offset&&n<=i?(e.nodesToHandle=0,e.howMany=0,e.offset=0):e.offset<=o.offset&&n>=i&&(o.howMany=0))}}e.howMany=e.nodesToHandle,delete e.nodesToHandle}_getInsertDiff(e,t,o){return{type:'insert',position:uu.createFromParentAndOffset(e,t),name:o,length:1,changeCount:this._changeCount++}}_getRemoveDiff(e,t,o){return{type:'remove',position:uu.createFromParentAndOffset(e,t),name:o,length:1,changeCount:this._changeCount++}}_getAttributesDiff(e,t,o){const n=[];o=new Map(o);for(const[i,r]of t){const t=o.has(i)?o.get(i):null;t!==r&&n.push({type:'attribute',position:e.start,range:pu.createFromRange(e),length:1,attributeKey:i,attributeOldValue:r,attributeNewValue:t,changeCount:this._changeCount++}),o.delete(i)}for(const[i,r]of o)n.push({type:'attribute',position:e.start,range:pu.createFromRange(e),length:1,attributeKey:i,attributeOldValue:null,attributeNewValue:r,changeCount:this._changeCount++});return n}_isInInsertedElement(e){const t=e.parent;if(!t)return!1;const o=this._changesInElement.get(t),n=e.startOffset;if(o)for(const e of o)if('insert'==e.type&&n>=e.offset&&n<e.offset+e.howMany)return!0;return this._isInInsertedElement(t)}_removeAllNestedChanges(e,t,o){const n=pu.createFromParentsAndOffsets(e,t,e,t+o);for(const i of n.getItems({shallow:!0}))i.is('element')&&(this._elementSnapshots.delete(i),this._changesInElement.delete(i),this._removeAllNestedChanges(i,0,i.maxOffset))}}class mf{constructor(){this._deltas=[],this._historyPoints=new Map,this._undoPairs=new Map,this._undoneDeltas=new Set}addDelta(e){if(0<e.operations.length&&!this._historyPoints.has(e.baseVersion)){const t=this._deltas.length;this._deltas[t]=e,this._historyPoints.set(e.baseVersion,t)}}*getDeltas(e=0,t=ns){if(0!==this._deltas.length){let o=this._getIndex(e);if(-1!=o)for(;o<this._deltas.length;){const e=this._deltas[o++];if(e.baseVersion>=t)break;yield e}}}getDelta(e){const t=this._historyPoints.get(e);return t===void 0?null:this._deltas[t]}setDeltaAsUndone(e,t){this._undoPairs.set(t,e),this._undoneDeltas.add(e)}isUndoingDelta(e){return this._undoPairs.has(e)}isUndoneDelta(e){return this._undoneDeltas.has(e)}getUndoneDelta(e){return this._undoPairs.get(e)}_getIndex(e){const t=this._historyPoints.get(e);if(t===void 0){const t=this._deltas[this._deltas.length-1],o=t.baseVersion+t.operations.length;if(0>e||e>=o)return-1;throw new _s('model-history-wrong-version: Given base version points to the middle of a delta.')}return t}}const uf='$graveyard';class pf{constructor(e){this.model=e,this.version=0,this.history=new mf(this),this.selection=new wu(this),this.roots=new Gc({idProperty:'rootName'}),this.differ=new cf(e.markers),this._postFixers=new Set,this.createRoot('$root',uf),this.listenTo(e,'applyOperation',(e,t)=>{const o=t[0];if(o.isDocumentOperation&&o.baseVersion!==this.version)throw new _s('model-document-applyOperation-wrong-version: Only operations with matching versions can be applied.',{operation:o})},{priority:'highest'}),this.listenTo(e,'applyOperation',(e,t)=>{const o=t[0];o.isDocumentOperation&&this.differ.bufferOperation(o)},{priority:'high'}),this.listenTo(e,'applyOperation',(e,t)=>{const o=t[0];o.isDocumentOperation&&(this.version++,this.history.addDelta(o.delta))},{priority:'low'});let t=!1;this.listenTo(this.selection,'change',()=>{t=!0}),this.listenTo(e,'_change',(e,o)=>{(!this.differ.isEmpty||t)&&(this._callPostFixers(o),this.differ.hasDataChanges()?this.fire('change:data',o.batch):this.fire('change',o.batch),this.differ.reset(),t=!1)}),this.listenTo(e.markers,'update',(e,t,o,n)=>{this.differ.bufferMarkerChange(t.name,o,n,t.affectsData),null===o&&t.on('change',(e,o)=>{this.differ.bufferMarkerChange(t.name,o,t.getRange(),t.affectsData)})})}get graveyard(){return this.getRoot(uf)}createRoot(e='$root',t='main'){if(this.roots.get(t))throw new _s('model-document-createRoot-name-exists: Root with specified name already exists.',{name:t});const o=new lf(this,e,t);return this.roots.add(o),o}destroy(){this.selection.destroy(),this.stopListening()}getRoot(e='main'){return this.roots.get(e)}getRootNames(){return Array.from(this.roots,(e)=>e.rootName).filter((e)=>e!=uf)}registerPostFixer(e){this._postFixers.add(e)}toJSON(){const e=$d(this);return e.selection='[engine.model.DocumentSelection]',e.model='[engine.model.Model]',e}_getDefaultRoot(){for(const e of this.roots)if(e!==this.graveyard)return e;return this.graveyard}_getDefaultRange(){const e=this._getDefaultRoot(),t=this.model.schema,o=new uu(e,[0]),n=t.getNearestSelectionRange(o);return n||new pu(o)}_validateSelectionRange(e){return hn(e.start)&&hn(e.end)}_callPostFixers(e){let t=!1;do for(const o of this._postFixers)if(t=o(e),t)break;while(t)}}f(pf,Ps);class gf{constructor(){this._markers=new Map}[Symbol.iterator](){return this._markers.values()}has(e){return this._markers.has(e)}get(e){return this._markers.get(e)||null}_set(e,t,o=!1,n=!1){const i=e instanceof ff?e.name:e,r=this._markers.get(i);if(r){const e=r.getRange();let a=!1;return e.isEqual(t)||(r._attachLiveRange(ku.createFromRange(t)),a=!0),o!=r.managedUsingOperations&&(r._managedUsingOperations=o,a=!0),'boolean'==typeof n&&n!=r.affectsData&&(r._affectsData=n,a=!0),a&&this.fire('update:'+i,r,e,t),r}const a=ku.createFromRange(t),s=new ff(i,a,o,n);return this._markers.set(i,s),this.fire('update:'+i,s,null,t),s}_remove(e){const t=e instanceof ff?e.name:e,o=this._markers.get(t);return!!o&&(this._markers.delete(t),this.fire('update:'+t,o,o.getRange(),null),this._destroyMarker(o),!0)}*getMarkersAtPosition(e){for(const t of this)t.getRange().containsPosition(e)&&(yield t)}*getMarkersIntersectingRange(e){for(const t of this)null!==t.getRange().getIntersection(e)&&(yield t)}destroy(){for(const e of this._markers.values())this._destroyMarker(e);this._markers=null,this.stopListening()}*getMarkersGroup(e){for(const t of this._markers.values())t.name.startsWith(e+':')&&(yield t)}_destroyMarker(e){e.stopListening(),e._detachLiveRange()}}f(gf,Ps);class ff{constructor(e,t,o,n){this.name=e,this._liveRange=this._attachLiveRange(t),this._managedUsingOperations=o,this._affectsData=n}get managedUsingOperations(){if(!this._liveRange)throw new _s('marker-destroyed: Cannot use a destroyed marker instance.');return this._managedUsingOperations}get affectsData(){if(!this._liveRange)throw new _s('marker-destroyed: Cannot use a destroyed marker instance.');return this._affectsData}getStart(){if(!this._liveRange)throw new _s('marker-destroyed: Cannot use a destroyed marker instance.');return uu.createFromPosition(this._liveRange.start)}getEnd(){if(!this._liveRange)throw new _s('marker-destroyed: Cannot use a destroyed marker instance.');return uu.createFromPosition(this._liveRange.end)}getRange(){if(!this._liveRange)throw new _s('marker-destroyed: Cannot use a destroyed marker instance.');return pu.createFromRange(this._liveRange)}_attachLiveRange(e){return this._liveRange&&this._detachLiveRange(),e.delegate('change:range').to(this),e.delegate('change:content').to(this),this._liveRange=e,e}_detachLiveRange(){this._liveRange.stopDelegating('change:range',this),this._liveRange.stopDelegating('change:content',this),this._liveRange.detach(),this._liveRange=null}}f(ff,Ps);class hf extends uu{constructor(e,t,o){if(super(e,t),!this.root.is('rootElement'))throw new _s('model-liveposition-root-not-rootelement: LivePosition\'s root has to be an instance of RootElement.');this.stickiness=o||'sticksToNext',bn.call(this)}detach(){this.stopListening()}}f(hf,Ps);class bf{constructor(e,t,o){this.model=e,this.writer=t,this.position=o,this.canMergeWith=new Set([this.position.parent]),this.schema=e.schema,this._filterAttributesOf=[]}handleNodes(e,t){e=Array.from(e);for(let o=0;o<e.length;o++){const n=e[o];this._handleNode(n,{isFirst:0===o&&t.isFirst,isLast:o===e.length-1&&t.isLast})}this.schema.removeDisallowedAttributes(this._filterAttributesOf,this.writer),this._filterAttributesOf=[]}getSelectionRange(){return this.nodeToSelect?pu.createOn(this.nodeToSelect):this.model.schema.getNearestSelectionRange(this.position)}_handleNode(e,t){if(this.schema.isObject(e))return void this._handleObject(e,t);const o=this._checkAndSplitToAllowedPosition(e,t);return o?void(this._insert(e),this._mergeSiblingsOf(e,t)):void this._handleDisallowedNode(e,t)}_handleObject(e,t){this._checkAndSplitToAllowedPosition(e)?this._insert(e):this._tryAutoparagraphing(e,t)}_handleDisallowedNode(e,t){e.is('element')?this.handleNodes(e.getChildren(),t):this._tryAutoparagraphing(e,t)}_insert(e){if(!this.schema.checkChild(this.position,e))return void Xm.error('insertcontent-wrong-position: The node cannot be inserted on the given position.',{node:e,position:this.position});const t=hf.createFromPosition(this.position);this.writer.insert(e,this.position),this.position=uu.createFromPosition(t),t.detach(),this.nodeToSelect=this.schema.isObject(e)&&!this.schema.checkChild(this.position,'$text')?e:null,this._filterAttributesOf.push(e)}_mergeSiblingsOf(e,t){if(e instanceof du){const o=this._canMergeLeft(e,t),n=this._canMergeRight(e,t),i=hf.createBefore(e),r=hf.createAfter(e);if(o){const e=hf.createFromPosition(this.position);this.writer.merge(i),this.position=uu.createFromPosition(e),e.detach()}if(n){this.position.isEqual(r)||Xm.error('insertcontent-wrong-position-on-merge: The insertion position should equal the merge position'),this.position=uu.createAt(r.nodeBefore,'end');const e=new hf(this.position.root,this.position.path,'sticksToPrevious');this.writer.merge(r),this.position=uu.createFromPosition(e),e.detach()}(o||n)&&this._filterAttributesOf.push(this.position.parent),i.detach(),r.detach()}}_canMergeLeft(e,t){const o=e.previousSibling;return t.isFirst&&o instanceof du&&this.canMergeWith.has(o)&&this.model.schema.checkMerge(o,e)}_canMergeRight(e,t){const o=e.nextSibling;return t.isLast&&o instanceof du&&this.canMergeWith.has(o)&&this.model.schema.checkMerge(e,o)}_tryAutoparagraphing(e,t){const o=this.writer.createElement('paragraph');this._getAllowedIn(o,this.position.parent)&&this.schema.checkChild(o,e)&&(o._appendChild(e),this._handleNode(o,t))}_checkAndSplitToAllowedPosition(e){const t=this._getAllowedIn(e,this.position.parent);if(!t)return!1;for(;t!=this.position.parent;){if(this.schema.isLimit(this.position.parent))return!1;if(this.position.isAtStart){const e=this.position.parent;this.position=uu.createBefore(e),e.isEmpty&&this.writer.remove(e)}else if(this.position.isAtEnd)this.position=uu.createAfter(this.position.parent);else{const e=uu.createAfter(this.position.parent);this.writer.split(this.position),this.position=e,this.canMergeWith.add(this.position.nodeAfter)}}return!0}_getAllowedIn(e,t){return this.schema.checkChild(t,e)?t:t.parent?this._getAllowedIn(e,t.parent):null}}const kf=' ,.?!:;"-()';class _f{constructor(){this.markers=new gf,this.document=new pf(this),this.schema=new Su,this._pendingChanges=[],this._currentWriter=null,['insertContent','deleteContent','modifySelection','getSelectedContent','applyOperation'].forEach((e)=>this.decorate(e)),this.on('applyOperation',(e,t)=>{const o=t[0];o._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']}),Dn(this)}change(e){return 0===this._pendingChanges.length?(this._pendingChanges.push({batch:new rf,callback:e}),this._runPendingChanges()[0]):e(this._currentWriter)}enqueueChange(e,t){'string'==typeof e?e=new rf(e):'function'==typeof e&&(t=e,e=new rf),this._pendingChanges.push({batch:e,callback:t}),1==this._pendingChanges.length&&this._runPendingChanges()}applyOperation(e){e._execute()}transformDeltas(e,t,o=!1){return ef.transformDeltaSets(e,t,o?this.document:null)}insertContent(e,t){_n(this,e,t)}deleteContent(e,t){wn(this,e,t)}modifySelection(e,t){Pn(this,e,t)}getSelectedContent(e){return Fn(this,e)}hasContent(e){if(e instanceof du&&(e=pu.createIn(e)),e.isCollapsed)return!1;for(const t of e.getItems())if(t.is('textProxy')||this.schema.isObject(t))return!0;return!1}destroy(){this.document.destroy(),this.stopListening()}_runPendingChanges(){const e=[];for(;this._pendingChanges.length;){const t=this._pendingChanges[0].batch;this._currentWriter=new df(this,t);const o=this._pendingChanges[0].callback(this._currentWriter);e.push(o),this.fire('_change',this._currentWriter),this._pendingChanges.shift(),this._currentWriter=null}return e}}f(_f,Mc);class wf{constructor(){this._listener=Object.create(km)}listenTo(e){this._listener.listenTo(e,'keydown',(e,t)=>{this._listener.fire('_keydown:'+te(t),t)})}set(e,t,o={}){const n=oe(e),i=o.priority;this._listener.listenTo(this._listener,'_keydown:'+n,(e,o)=>{t(o,()=>{o.preventDefault(),o.stopPropagation(),e.stop()}),e.return=!0},{priority:i})}press(e){return!!this._listener.fire('_keydown:'+te(e),e)}destroy(){this._listener.stopListening()}}class vf extends wf{constructor(e){super(),this.editor=e}set(e,t,o={}){if('string'==typeof t){const e=t;t=(t,o)=>{this.editor.execute(e),o()}}super.set(e,t,o)}}class yf{constructor(e){const t=this.constructor.build&&this.constructor.build.plugins;this.config=new bs(e,this.constructor.build&&this.constructor.build.config),this.config.define('plugins',t),this.plugins=new Cu(this,t),this.commands=new Au,this.locale=new Tu(this.config.get('language')),this.t=this.locale.t,this.set('isReadOnly',!1),this.model=new _f,this.data=new Ru(this.model),this.editing=new xu(this.model),this.editing.view.document.bind('isReadOnly').to(this),this.conversion=new Vu,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 vf(this),this.keystrokes.listenTo(this.editing.view.document)}initPlugins(){function e(e,t){return e.reduce((e,o)=>o[t]?e.then(o[t].bind(o)):e,Promise.resolve())}const t=this,o=this.config;return function(){const e=o.get('plugins')||[],n=o.get('removePlugins')||[];return t.plugins.load(e,n)}().then((t)=>e(t,'init').then(()=>e(t,'afterInit'))).then(()=>this.fire('pluginsReady'))}destroy(){return this.fire('destroy'),this.stopListening(),this.commands.destroy(),this.plugins.destroy().then(()=>{this.model.destroy(),this.data.destroy(),this.editing.destroy(),this.keystrokes.destroy()})}execute(...e){this.commands.execute(...e)}static create(e){return new Promise((t)=>{const o=new this(e);t(o.initPlugins().then(()=>{o.fire('dataReady'),o.fire('ready')}).then(()=>o))})}}f(yf,Mc);const xf={setData(e){this.data.set(e)},getData(){return this.data.get()}};const Cf={updateElement(){Wn(this.element,this.data.get())}};class Af{getHtml(e){const t=document.implementation.createHTMLDocument(''),o=t.createElement('div');return o.appendChild(e),o.innerHTML}}class Tf{constructor(){this._domParser=new DOMParser,this._domConverter=new hm({blockFiller:dm}),this._htmlWriter=new Af}toData(e){const t=this._domConverter.viewToDom(e,document);return this._htmlWriter.getHtml(t)}toView(e){const t=this._toDom(e);return this._domConverter.domToView(t)}_toDom(e){const t=this._domParser.parseFromString(e,'text/html'),o=t.createDocumentFragment(),n=t.body.childNodes;for(;0<n.length;)o.appendChild(n[0]);return o}}class Pf{constructor(e){this.editor=e,this._components=new Map}*names(){for(const e of this._components.values())yield e.originalName}add(e,t){if(this.has(e))throw new _s('componentfactory-item-exists: The item already exists in the component factory.',{name:e});this._components.set(Hn(e),{callback:t,originalName:e})}create(e){if(!this.has(e))throw new _s('componentfactory-item-missing: The required component is not registered in the factory.',{name:e});return this._components.get(Hn(e)).callback(this.editor.locale)}has(e){return this._components.has(Hn(e))}}class Ef{constructor(){this.set('isFocused',!1),this.focusedElement=null,this._elements=new Set,this._nextEventLoopTimeout=null}add(e){if(this._elements.has(e))throw new _s('focusTracker-add-element-already-exist');this.listenTo(e,'focus',()=>this._focus(e),{useCapture:!0}),this.listenTo(e,'blur',()=>this._blur(),{useCapture:!0}),this._elements.add(e)}remove(e){e===this.focusedElement&&this._blur(e),this._elements.has(e)&&(this.stopListening(e),this._elements.delete(e))}_focus(e){clearTimeout(this._nextEventLoopTimeout),this.focusedElement=e,this.isFocused=!0}_blur(){clearTimeout(this._nextEventLoopTimeout),this._nextEventLoopTimeout=setTimeout(()=>{this.focusedElement=null,this.isFocused=!1},0)}}f(Ef,km),f(Ef,Mc);class Sf{constructor(e,t){this.editor=e,this.view=t,this.componentFactory=new Pf(e),this.focusTracker=new Ef,this._toolbarConfig=Gn(e.config.get('toolbar'))}init(){const e=this.editor,t=this.view;t.render(),t.stickyPanel.bind('isActive').to(this.focusTracker,'isFocused'),t.stickyPanel.limiterElement=t.element,this._toolbarConfig.viewportTopOffset&&(t.stickyPanel.viewportTopOffset=this._toolbarConfig.viewportTopOffset);const o=e.editing.view.document.getRoot();t.editable.bind('isReadOnly').to(o),t.editable.bind('isFocused').to(e.editing.view.document),t.editable.name=o.rootName,this.focusTracker.add(this.view.editableElement),this.view.toolbar.fillFromConfig(this._toolbarConfig.items,this.componentFactory),Kn({origin:e.editing.view,originFocusTracker:this.focusTracker,originKeystrokeHandler:e.keystrokes,toolbar:this.view.toolbar})}destroy(){this.view.destroy()}}class Of extends Gc{constructor(e){super({idProperty:'viewUid'}),this.on('add',(e,t,o)=>{t.isRendered||t.render(),t.element&&this._parentElement&&this._parentElement.insertBefore(t.element,this._parentElement.children[o])}),this.on('remove',(e,t)=>{t.element&&this._parentElement&&t.element.remove()}),this.locale=e,this._parentElement=null}destroy(){this.map((e)=>e.destroy())}setParent(e){this._parentElement=e}delegate(...e){if(!e.length||!$n(e))throw new _s('ui-viewcollection-delegate-wrong-events: All event names must be strings.');return{to:(t)=>{for(const o of this)for(const n of e)o.delegate(n).to(t);this.on('add',(o,n)=>{for(const i of e)n.delegate(i).to(t)}),this.on('remove',(o,n)=>{for(const i of e)n.stopDelegating(i,t)})}}}}f(Gc,Mc);var If=function(e,t){return Gd(e,!0,!0,t)};class Rf{constructor(e){Object.assign(this,oi(ti(e))),this._isRendered=!1,this._revertData=null}render(){const e=this._renderNode({intoFragment:!0});return this._isRendered=!0,e}apply(e){return this._revertData=fi(),this._renderNode({node:e,isApplying:!0,revertData:this._revertData}),e}revert(e){if(!this._revertData)throw new _s('ui-template-revert-not-applied: Attempting to revert a template which has not been applied yet.');this._revertTemplateFromNode(e,this._revertData)}*getViews(){function*e(t){if(t.children)for(const o of t.children)ui(o)?yield o:pi(o)&&(yield*e(o))}yield*e(this)}static bind(e,t){return{to(o,n){return new Ff({eventNameOrFunction:o,attribute:o,observable:e,emitter:t,callback:n})},if(o,n,i){return new Nf({observable:e,emitter:t,attribute:o,valueIfTrue:n,callback:i})}}}static extend(e,t){e._isRendered&&Xm.warn('template-extend-render: Attempting to extend a template which has already been rendered.'),ci(e,oi(ti(t)))}_renderNode(e){let t;if(t=e.node?this.tag&&this.text:this.tag?this.text:!this.text,t)throw new _s('ui-template-wrong-syntax: Node definition must have either "tag" or "text" when rendering a new Node.');return this.text?this._renderText(e):this._renderElement(e)}_renderElement(e){let t=e.node;return t||(t=e.node=document.createElementNS(this.ns||'http://www.w3.org/1999/xhtml',this.tag)),this._renderAttributes(e),this._renderElementChildren(e),this._setUpListeners(e),t}_renderText(e){let t=e.node;return t?e.revertData.text=t.textContent:t=e.node=document.createTextNode(''),Jn(this.text)?this._bindToObservable({schema:this.text,updater:Xn(t),data:e}):t.textContent=this.text.join(''),t}_renderAttributes(e){let t,o,n,i;if(this.attributes){const r=e.node,a=e.revertData;for(t in this.attributes)if(n=r.getAttribute(t),o=this.attributes[t],a&&(a.attributes[t]=n),i=Vs(o[0])&&o[0].ns?o[0].ns:null,Jn(o)){const s=i?o[0].value:o;a&&hi(t)&&s.unshift(n),this._bindToObservable({schema:s,updater:Zn(r,t,i),data:e})}else'style'==t&&'string'!=typeof o[0]?this._renderStyleAttribute(o[0],e):(a&&n&&hi(t)&&o.unshift(n),o=o.map((e)=>e?e.value||e:e).reduce((e,t)=>e.concat(t),[]).reduce(li,''),mi(o)||r.setAttributeNS(i,t,o))}}_renderStyleAttribute(e,t){const o=t.node;for(const n in e){const i=e[n];Jn(i)?this._bindToObservable({schema:[i],updater:ei(o,n),data:t}):o.style[n]=i}}_renderElementChildren(e){const t=e.node,o=e.intoFragment?document.createDocumentFragment():t,n=e.isApplying;let i=0;for(const r of this.children)if(gi(r)){if(!n){r.setParent(t);for(const e of r)o.appendChild(e.element)}}else if(ui(r))n||(!r.isRendered&&r.render(),o.appendChild(r.element));else if(Oe(r))o.appendChild(r);else if(n){const t=e.revertData,n=fi();t.children.push(n),r._renderNode({node:o.childNodes[i++],isApplying:!0,revertData:n})}else o.appendChild(r.render());e.intoFragment&&t.appendChild(o)}_setUpListeners(e){if(this.eventListeners)for(const t in this.eventListeners){const o=this.eventListeners[t].map((o)=>{const[n,i]=t.split('@');return o.activateDomEventListener(n,i,e)});e.revertData&&e.revertData.bindings.push(o)}}_bindToObservable({schema:e,updater:t,data:o}){const n=o.revertData;Yn(e,t,o);const i=e.filter((e)=>!mi(e)).filter((e)=>e.observable).map((n)=>n.activateAttributeListener(e,t,o));n&&n.bindings.push(i)}_revertTemplateFromNode(e,t){for(const o of t.bindings)for(const e of o)e();if(t.text)return void(e.textContent=t.text);for(const o in t.attributes){const n=t.attributes[o];null===n?e.removeAttribute(o):e.setAttribute(o,n)}for(let o=0;o<t.children.length;++o)this._revertTemplateFromNode(e.childNodes[o],t.children[o])}}f(Rf,Ps);class Vf{constructor(e){Object.assign(this,e)}getValue(e){const t=this.observable[this.attribute];return this.callback?this.callback(t,e):t}activateAttributeListener(e,t,o){const n=()=>Yn(e,t,o);return this.emitter.listenTo(this.observable,'change:'+this.attribute,n),()=>{this.emitter.stopListening(this.observable,'change:'+this.attribute,n)}}}class Ff extends Vf{activateDomEventListener(e,t,o){const n=(e,o)=>{(!t||o.target.matches(t))&&('function'==typeof this.eventNameOrFunction?this.eventNameOrFunction(o):this.observable.fire(this.eventNameOrFunction,o))};return this.emitter.listenTo(o.node,e,n),()=>{this.emitter.stopListening(o.node,e,n)}}}class Nf extends Vf{getValue(e){const t=super.getValue(e);return!mi(t)&&(this.valueIfTrue||!0)}}var Df=o(11),Mf=o.n(Df);class Bf{constructor(e){this.element=null,this.isRendered=!1,this.locale=e,this.t=e&&e.t,this._viewCollections=new Gc,this._unboundChildren=this.createCollection(),this._viewCollections.on('add',(t,o)=>{o.locale=e}),this.decorate('render')}get bindTemplate(){return this._bindTemplate?this._bindTemplate:this._bindTemplate=Rf.bind(this,this)}createCollection(){const e=new Of;return this._viewCollections.add(e),e}registerChild(e){P(e)||(e=[e]);for(const t of e)this._unboundChildren.add(t)}deregisterChild(e){P(e)||(e=[e]);for(const t of e)this._unboundChildren.remove(t)}setTemplate(e){this.template=new Rf(e)}extendTemplate(e){Rf.extend(this.template,e)}render(){if(this.isRendered)throw new _s('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((e)=>e.destroy())}}f(Bf,km),f(Bf,Mc);var Lf=o(14),zf=o.n(Lf);class jf extends Bf{constructor(e){super(e),this.body=this.createCollection()}render(){super.render(),this._renderBodyCollection()}destroy(){return this._bodyCollectionContainer.remove(),super.destroy()}_renderBodyCollection(){const e=this._bodyCollectionContainer=new Rf({tag:'div',attributes:{class:['ck','ck-reset_all','ck-body','ck-rounded-corners']},children:this.body}).render();document.body.appendChild(e)}}var qf=o(16),Wf=o.n(qf);class Uf extends Bf{constructor(e){super(e),this.set('text'),this.set('for');const t=this.bindTemplate;this.setTemplate({tag:'label',attributes:{class:['ck','ck-label'],for:t.to('for')},children:[{text:t.to('text')}]})}}class Hf extends jf{constructor(e){super(e);const t=i();this.top=this.createCollection(),this.main=this.createCollection(),this._voiceLabelView=this._createVoiceLabel(t),this.setTemplate({tag:'div',attributes:{class:['ck','ck-reset','ck-editor','ck-rounded-corners'],role:'application',dir:'ltr',lang:e.language,"aria-labelledby":`ck-editor__aria-label_${t}`},children:[this._voiceLabelView,{tag:'div',attributes:{class:['ck','ck-editor__top','ck-reset_all'],role:'presentation'},children:this.top},{tag:'div',attributes:{class:['ck','ck-editor__main'],role:'presentation'},children:this.main}]})}_createVoiceLabel(e){const o=this.t,t=new Uf;return t.text=o('ag'),t.extendTemplate({attributes:{id:`ck-editor__aria-label_${e}`,class:'ck-voice-label'}}),t}}class Kf extends Bf{constructor(e,t){super(e);const o=this.bindTemplate;t&&(this.element=this.editableElement=t),this.setTemplate({tag:'div',attributes:{class:['ck','ck-content','ck-editor__editable','ck-rounded-corners',o.to('isFocused',(e)=>e?'ck-focused':'ck-blurred')],contenteditable:o.to('isReadOnly',(e)=>!e)}}),this.set('isReadOnly',!1),this.set('isFocused',!1),this.externalElement=t}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 Gf extends Kf{constructor(e,o){super(e,o);const n=this.bindTemplate,i=this.t;this.set('name',null);this.extendTemplate({attributes:{role:'textbox',"aria-label":n.to('name',(e)=>i('af',[e])),class:'ck-editor__editable_inline'}})}}var $f=o(18),Jf=o.n($f);const Qf=bi('px');class Yf extends Bf{constructor(e){super(e);const t=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 Rf({tag:'div',attributes:{class:['ck','ck-sticky-panel__placeholder'],style:{display:t.to('isSticky',(e)=>e?'block':'none'),height:t.to('isSticky',(e)=>e?Qf(this._panelRect.height):null)}}}).render(),this._contentPanel=new Rf({tag:'div',attributes:{class:['ck','ck-sticky-panel__content',t.if('isSticky','ck-sticky-panel__content_sticky'),t.if('_isStickyToTheLimiter','ck-sticky-panel__content_sticky_bottom-limit')],style:{width:t.to('isSticky',(e)=>e?Qf(this._contentPanelPlaceholder.getBoundingClientRect().width):null),top:t.to('_hasViewportTopOffset',(e)=>e?Qf(this.viewportTopOffset):null),bottom:t.to('_isStickyToTheLimiter',(e)=>e?Qf(this.limiterBottomOffset):null),marginLeft:t.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(gm.window,'scroll',()=>{this._checkIfShouldBeSticky()}),this.listenTo(this,'change:isActive',()=>{this._checkIfShouldBeSticky()})}_checkIfShouldBeSticky(){const e=this._panelRect=this._contentPanel.getBoundingClientRect();let t;this.limiterElement?(t=this._limiterRect=this.limiterElement.getBoundingClientRect(),this.isSticky=this.isActive&&t.top<this.viewportTopOffset&&this._panelRect.height+this.limiterBottomOffset<t.height):this.isSticky=!1,this.isSticky?(this._isStickyToTheLimiter=t.bottom<e.height+this.limiterBottomOffset+this.viewportTopOffset,this._hasViewportTopOffset=!this._isStickyToTheLimiter&&!!this.viewportTopOffset,this._marginLeft=this._isStickyToTheLimiter?null:Qf(-gm.window.scrollX)):(this._isStickyToTheLimiter=!1,this._hasViewportTopOffset=!1,this._marginLeft=null)}}class Xf{constructor(e){if(Object.assign(this,e),e.actions&&e.keystrokeHandler)for(const t in e.actions){let o=e.actions[t];'string'==typeof o&&(o=[o]);for(const n of o)e.keystrokeHandler.set(n,(e,o)=>{this[t](),o()})}}get first(){return this.focusables.find(ki)||null}get last(){return this.focusables.filter(ki).slice(-1)[0]||null}get next(){return this._getFocusableItem(1)}get previous(){return this._getFocusableItem(-1)}get current(){let e=null;return null===this.focusTracker.focusedElement?null:(this.focusables.find((t,o)=>{const n=t.element===this.focusTracker.focusedElement;return n&&(e=o),n}),e)}focusFirst(){this._focus(this.first)}focusLast(){this._focus(this.last)}focusNext(){this._focus(this.next)}focusPrevious(){this._focus(this.previous)}_focus(e){e&&e.focus()}_getFocusableItem(e){const t=this.current,o=this.focusables.length;if(!o)return null;if(null===t)return this[1===e?'first':'last'];let n=(t+o+e)%o;do{const t=this.focusables.get(n);if(ki(t))return t;n=(n+o+e)%o}while(n!==t);return null}}class Zf extends Bf{constructor(e){super(e),this.setTemplate({tag:'span',attributes:{class:['ck','ck-toolbar__separator']}})}}var eh=o(20),th=o.n(eh);class oh extends Bf{constructor(e){super(e);const t=this.bindTemplate;this.items=this.createCollection(),this.focusTracker=new Ef,this.keystrokes=new wf,this.set('isVertical',!1),this.set('className'),this._focusCycler=new Xf({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',t.if('isVertical','ck-toolbar_vertical'),t.to('className')]},children:this.items,on:{mousedown:_i(this)}})}render(){super.render();for(const e of this.items)this.focusTracker.add(e.element);this.items.on('add',(e,t)=>{this.focusTracker.add(t.element)}),this.items.on('remove',(e,t)=>{this.focusTracker.remove(t.element)}),this.keystrokes.listenTo(this.element)}focus(){this._focusCycler.focusFirst()}focusLast(){this._focusCycler.focusLast()}fillFromConfig(e,t){e.map((e)=>{'|'==e?this.items.add(new Zf):t.has(e)?this.items.add(t.create(e)):Xm.warn('toolbarview-item-unavailable: The requested toolbar item is unavailable.',{name:e})})}}var nh=o(22),ih=o.n(nh);class rh extends Hf{constructor(e){super(e),this.stickyPanel=new Yf(e),this.toolbar=new oh(e),this.editable=new Gf(e)}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 ah{constructor(){this._replacedElements=[]}replace(e,t){this._replacedElements.push({element:e,newElement:t}),e.style.display='none',t&&e.parentNode.insertBefore(t,e.nextSibling)}restore(){this._replacedElements.forEach(({element:e,newElement:t})=>{e.style.display='',t&&t.remove()}),this._replacedElements=[]}}class sh extends yf{constructor(e,t){super(t),this._elementReplacer=new ah,this.element=e,this.data.processor=new Tf,this.model.document.createRoot(),this.ui=new Sf(this,new rh(this.locale)),Un(this)}destroy(){return this.updateElement(),this._elementReplacer.restore(),this.ui.destroy(),super.destroy()}static create(e,t){return new Promise((o)=>{const n=new this(e,t);o(n.initPlugins().then(()=>n.ui.init()).then(()=>{n._elementReplacer.replace(e,n.ui.view.element),n.fire('uiReady')}).then(()=>n.editing.view.attachDomRoot(n.ui.view.editableElement)).then(()=>n.data.init(wi(e))).then(()=>{n.fire('dataReady'),n.fire('ready')}).then(()=>n))})}}f(sh,xf),f(sh,Cf);class lh{constructor(e){this.editor=e}destroy(){this.stopListening()}}f(lh,Mc);class dh{constructor(e){this.files=vi(e),this._native=e}get types(){return this._native.types}getData(e){return this._native.getData(e)}setData(e,t){this._native.setData(e,t)}}class ch extends qm{constructor(e){function t(e,t){t.preventDefault();const n=t.dropRange?[t.dropRange]:Array.from(o.selection.getRanges());o.fire('clipboardInput',{dataTransfer:t.dataTransfer,targetRanges:n})}super(e);const o=this.document;this.domEventType=['paste','copy','cut','drop','dragover'],this.listenTo(o,'paste',t,{priority:'low'}),this.listenTo(o,'drop',t,{priority:'low'})}onDomEvent(e){const t={dataTransfer:new dh(e.clipboardData?e.clipboardData:e.dataTransfer)};'drop'==e.type&&(t.dropRange=yi(this.view,e)),this.fire(e.type,e,t)}}const mh=['figcaption','li'];class uh extends lh{static get pluginName(){return'Clipboard'}init(){function e(e,n){const r=n.dataTransfer;n.preventDefault();const a=t.data.toView(t.model.getSelectedContent(o.selection));i.fire('clipboardOutput',{dataTransfer:r,content:a,method:e.name})}const t=this.editor,o=t.model.document,n=t.editing.view,i=n.document;this._htmlDataProcessor=new Tf,n.addObserver(ch),this.listenTo(i,'clipboardInput',(e)=>{t.isReadOnly&&e.stop()},{priority:'highest'}),this.listenTo(i,'clipboardInput',(e,t)=>{const o=t.dataTransfer;let i='';o.getData('text/html')?i=Ci(o.getData('text/html')):o.getData('text/plain')&&(i=xi(o.getData('text/plain'))),i=this._htmlDataProcessor.toView(i),this.fire('inputTransformation',{content:i}),n.scrollToTheSelection()},{priority:'low'}),this.listenTo(this,'inputTransformation',(e,t)=>{if(!t.content.isEmpty){const e=this.editor.data,n=this.editor.model,i=e.toModel(t.content,'$clipboardHolder');if(0==i.childCount)return;n.insertContent(i,o.selection)}},{priority:'low'}),this.listenTo(i,'copy',e,{priority:'low'}),this.listenTo(i,'cut',(o,n)=>{t.isReadOnly?n.preventDefault():e(o,n)},{priority:'low'}),this.listenTo(i,'clipboardOutput',(e,n)=>{n.content.isEmpty||(n.dataTransfer.setData('text/html',this._htmlDataProcessor.toData(n.content)),n.dataTransfer.setData('text/plain',Ai(n.content))),'cut'==n.method&&t.model.deleteContent(o.selection)},{priority:'low'})}}class ph{constructor(e){this.editor=e,this.set('value',void 0),this.set('isEnabled',!1),this.decorate('execute'),this.listenTo(this.editor.model.document,'change',()=>{this.refresh()}),this.on('execute',(e)=>{this.isEnabled||e.stop()},{priority:'high'}),this.listenTo(e,'change:isReadOnly',(e,t,o)=>{o?(this.on('set:isEnabled',Ti,{priority:'highest'}),this.isEnabled=!1):(this.off('set:isEnabled',Ti),this.refresh())})}refresh(){this.isEnabled=!0}execute(){}destroy(){this.stopListening()}}f(ph,Mc);class gh extends ph{execute(){const e=this.editor.model,t=e.document;e.change((o)=>{Pi(this.editor.model,o,t.selection,e.schema),this.fire('afterExecute',{writer:o})})}}class fh extends wm{constructor(e){super(e);const t=this.document;t.on('keydown',(e,o)=>{if(this.isEnabled&&o.keyCode==nm.enter){let n;t.once('enter',(e)=>n=e,{priority:'highest'}),t.fire('enter',new jm(t,o.domEvent,{isSoft:o.shiftKey})),n&&n.stop.called&&e.stop()}})}observe(){}}class hh extends lh{static get pluginName(){return'Enter'}init(){const e=this.editor,t=e.editing.view,o=t.document;t.addObserver(fh),e.commands.add('enter',new gh(e)),this.listenTo(o,'enter',(o,n)=>{n.isSoft||(e.execute('enter'),n.preventDefault(),t.scrollToTheSelection())},{priority:'low'})}}class bh extends ph{execute(){const e=this.editor.model,t=e.document;e.change((o)=>{Oi(e,o,t.selection),this.fire('afterExecute',{writer:o})})}refresh(){const e=this.editor.model,t=e.document;this.isEnabled=Si(e.schema,t.selection)}}class kh extends lh{static get pluginName(){return'ShiftEnter'}init(){const e=this.editor,t=e.model.schema,o=e.conversion,n=e.editing.view,i=n.document;t.register('softBreak',{allowWhere:'$text'}),o.for('upcast').add(io({model:'softBreak',view:'br'})),o.for('downcast').add(xt({model:'softBreak',view:(e,t)=>t.createEmptyElement('br')})),n.addObserver(fh),e.commands.add('shiftEnter',new bh(e)),this.listenTo(i,'enter',(t,o)=>{o.isSoft&&(e.execute('shiftEnter'),o.preventDefault(),n.scrollToTheSelection())},{priority:'low'})}}class _h{constructor(e,t=20){this.model=e,this.size=0,this.limit=t,this.isLocked=!1,this._changeCallback=(e,t)=>{'transparent'!=t.type&&t!==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 rf),this._batch}input(e){this.size+=e,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(e){(!this.isLocked||e)&&(this._batch=null,this.size=0)}}class wh extends ph{constructor(e,t){super(e),this._buffer=new _h(e.model,t)}get buffer(){return this._buffer}destroy(){super.destroy(),this._buffer.destroy()}execute(e={}){const t=this.editor.model,o=t.document,n=e.text||'',i=n.length,r=e.range||o.selection.getFirstRange(),a=e.resultRange;t.enqueueChange(this._buffer.batch,(e)=>{const t=r.isCollapsed;this._buffer.lock(),t||e.remove(r),n&&e.insertText(n,o.selection.getAttributes(),r.start),a?e.setSelection(a):t&&e.setSelection(r.start.getShiftedBy(i)),this._buffer.unlock(),this._buffer.input(i)})}}class vh extends lh{static get pluginName(){return'Input'}init(){const e=this.editor,t=e.editing.view,o=new wh(e,e.config.get('typing.undoStep')||20);e.commands.add('input',o),this.listenTo(t.document,'keydown',(e,t)=>{this._handleKeydown(t,o)},{priority:'lowest'}),this.listenTo(t.document,'mutations',(e,t,o)=>{this._handleMutations(t,o)})}_handleKeydown(e,t){const o=this.editor.model,n=o.document,i=t.buffer;!t.isEnabled||Fi(e)||n.selection.isCollapsed||(i.lock(),o.enqueueChange(i.batch,()=>{this.editor.model.deleteContent(n.selection)}),i.unlock())}_handleMutations(e,t){new yh(this.editor).handle(e,t)}}class yh{constructor(e){this.editor=e,this.editing=this.editor.editing}handle(e,t){if(Bi(e))this._handleContainerChildrenMutations(e,t);else for(const o of e)this._handleTextMutation(o,t),this._handleTextNodeInsertion(o)}_handleContainerChildrenMutations(e,t){const o=Mi(e);if(!o)return;const n=this.editor.editing.view.domConverter,i=n.mapViewToDom(o),r=new hm,a=this.editor.data.toModel(r.domToView(i)).getChild(0),s=this.editor.editing.mapper.toModelElement(o);if(!s)return;const l=Array.from(a.getChildren()),d=Array.from(s.getChildren()),c=l[l.length-1],m=d[d.length-1];if(c&&c.is('softBreak')&&m&&!m.is('softBreak')&&l.pop(),!Li(l)||!Li(d))return;const u=l.map((e)=>e.is('text')?e.data:'@').join('').replace(/\u00A0/g,' '),p=d.map((e)=>e.is('text')?e.data:'@').join('');if(p===u)return;const g=Te(p,u),{firstChangeAt:f,insertions:h,deletions:b}=zi(g);let k=null;t&&(k=this.editing.mapper.toModelRange(t.getFirstRange()));const _=u.substr(f,h),w=pu.createFromParentsAndOffsets(s,f,s,f+b);this.editor.execute('input',{text:_,range:w,resultRange:k})}_handleTextMutation(e,t){if('text'!=e.type)return;const o=e.newText.replace(/\u00A0/g,' '),n=e.oldText.replace(/\u00A0/g,' '),i=Te(n,o),{firstChangeAt:r,insertions:a,deletions:s}=zi(i);let l=null;t&&(l=this.editing.mapper.toModelRange(t.getFirstRange()));const d=new Wc(e.node,r),c=this.editing.mapper.toModelPosition(d),m=pu.createFromPositionAndShift(c,s),u=o.substr(r,a);this.editor.execute('input',{text:u,range:m,resultRange:l})}_handleTextNodeInsertion(e){if('children'==e.type){const t=Di(e),o=new Wc(e.node,t.index),n=this.editing.mapper.toModelPosition(o),i=t.values[0].data;this.editor.execute('input',{text:i.replace(/\u00A0/g,' '),range:new pu(n)})}}}const xh=[te('arrowUp'),te('arrowRight'),te('arrowDown'),te('arrowLeft'),9,16,17,18,20,27,33,34,35,36,229];for(let n=112;135>=n;n++)xh.push(n);class Ch extends ph{constructor(e,t){super(e),this.direction=t,this._buffer=new _h(e.model,e.config.get('typing.undoStep'))}execute(e={}){const t=this.editor.model,o=t.document;t.enqueueChange(this._buffer.batch,(n)=>{this._buffer.lock();const i=new bu(o.selection),r=i.isCollapsed;if(i.isCollapsed&&t.modifySelection(i,{direction:this.direction,unit:e.unit}),this._shouldEntireContentBeReplacedWithParagraph(e.sequence||1))return void this._replaceEntireContentWithParagraph(n);if(i.isCollapsed)return;let a=0;i.getFirstRange().getMinimalFlatRanges().forEach((e)=>{a+=Y(e.getWalker({singleCharacters:!0,ignoreElementEnd:!0,shallow:!0}))}),t.deleteContent(i,{doNotResetEntireContent:r}),this._buffer.input(a),n.setSelection(i),this._buffer.unlock()})}_shouldEntireContentBeReplacedWithParagraph(e){if(1<e)return!1;const t=this.editor.model,o=t.document,n=o.selection,i=t.schema.getLimitElement(n),r=n.isCollapsed&&n.containsEntireContent(i);if(!r)return!1;if(!t.schema.checkChild(i,'paragraph'))return!1;const a=i.getChild(0);return!(a&&'paragraph'===a.name)}_replaceEntireContentWithParagraph(e){const t=this.editor.model,o=t.document,n=o.selection,i=t.schema.getLimitElement(n),r=new du('paragraph');e.remove(pu.createIn(i)),e.insert(r,i),e.setSelection(r,0)}}class Ah extends wm{constructor(e){super(e);const t=e.document;let o=0;t.on('keyup',(e,t)=>{(t.keyCode==nm.delete||t.keyCode==nm.backspace)&&(o=0)}),t.on('keydown',(e,n)=>{const i={};if(n.keyCode==nm.delete)i.direction='forward',i.unit='character';else if(n.keyCode==nm.backspace)i.direction='backward',i.unit='codePoint';else return;const r=em.isMac?n.altKey:n.ctrlKey;i.unit=r?'word':i.unit,i.sequence=++o;let a;t.once('delete',(e)=>a=e,{priority:'highest'}),t.fire('delete',new jm(t,n.domEvent,i)),a&&a.stop.called&&e.stop()})}observe(){}}class Th extends lh{static get pluginName(){return'Delete'}init(){const e=this.editor,t=e.editing.view,o=t.document;t.addObserver(Ah),e.commands.add('forwardDelete',new Ch(e,'forward')),e.commands.add('delete',new Ch(e,'backward')),this.listenTo(o,'delete',(o,n)=>{e.execute('forward'==n.direction?'forwardDelete':'delete',{unit:n.unit,sequence:n.sequence}),n.preventDefault(),t.scrollToTheSelection()})}}class Ph extends lh{static get requires(){return[vh,Th]}static get pluginName(){return'Typing'}}class Eh extends ph{constructor(e){super(e),this._stack=[],this._createdBatches=new WeakSet,this.refresh()}refresh(){this.isEnabled=0<this._stack.length}addBatch(e){const t=this.editor.model.document.selection,o={ranges:t.hasOwnRange?Array.from(t.getRanges()):[],isBackward:t.isBackward};this._stack.push({batch:e,selection:o}),this.refresh()}clearStack(){this._stack=[],this.refresh()}_restoreSelection(e,t,o){const n=this.editor.model,i=n.document,r=[];for(const n of e){const e=ji(n,o),t=e.find((e)=>e.start.root!=i.graveyard);t&&r.push(t)}r.length&&n.change((e)=>{e.setSelection(r,{backward:t})})}_undo(e,t){const o=this.editor.model,n=o.document;this._createdBatches.add(t);const i=e.deltas.slice();i.reverse();for(const r of i)if(r.operations.some((e)=>e.isDocumentOperation)){const e=r.baseVersion+r.operations.length,i=Array.from(n.history.getDeltas(e)),a=o.transformDeltas([r.getReversed()],i,!0),s=a.deltasA;for(const e of s){e.baseVersion=n.version,t.addDelta(e);for(const t of e.operations)o.applyOperation(t);n.history.setDeltaAsUndone(r,e)}}}}class Sh extends Eh{execute(e=null){const t=e?this._stack.findIndex((t)=>t.batch==e):this._stack.length-1,o=this._stack.splice(t,1)[0],n=new rf;this.editor.model.enqueueChange(n,()=>{this._undo(o.batch,n);const e=this.editor.model.document.history.getDeltas(o.batch.baseVersion);this._restoreSelection(o.selection.ranges,o.selection.isBackward,e),this.fire('revert',o.batch,n)}),this.refresh()}}class Oh extends Eh{execute(){const e=this._stack.pop(),t=new rf;this.editor.model.enqueueChange(t,()=>{const o=e.batch.deltas[e.batch.deltas.length-1],n=o.baseVersion+o.operations.length,i=this.editor.model.document.history.getDeltas(n);this._restoreSelection(e.selection.ranges,e.selection.isBackward,i),this._undo(e.batch,t)}),this.refresh()}}class Ih extends lh{constructor(e){super(e),this._batchRegistry=new WeakSet}init(){const e=this.editor;this._undoCommand=new Sh(e),this._redoCommand=new Oh(e),e.commands.add('undo',this._undoCommand),e.commands.add('redo',this._redoCommand),this.listenTo(e.model,'applyOperation',(e,t)=>{const o=t[0];if(o.isDocumentOperation){const e=o.delta.batch;this._batchRegistry.has(e)||'transparent'==e.type||(this._redoCommand._createdBatches.has(e)?this._undoCommand.addBatch(e):!this._undoCommand._createdBatches.has(e)&&(this._undoCommand.addBatch(e),this._redoCommand.clearStack()),this._batchRegistry.add(e))}},{priority:'highest'}),this.listenTo(this._undoCommand,'revert',(e,t,o)=>{this._redoCommand.addBatch(o)}),e.keystrokes.set('CTRL+Z','undo'),e.keystrokes.set('CTRL+Y','redo'),e.keystrokes.set('CTRL+SHIFT+Z','redo')}}var Rh=o(24),Vh=o.n(Rh);class Fh extends Bf{constructor(){super();const e=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:e.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 e=new DOMParser().parseFromString(this.content.trim(),'image/svg+xml'),t=e.querySelector('svg'),o=t.getAttribute('viewBox');for(o&&(this.viewBox=o),this.element.innerHTML='';0<t.childNodes.length;)this.element.appendChild(t.childNodes[0])}}_colorFillPaths(){this.fillColor&&this.element.querySelectorAll('.ck-icon__fill').forEach((e)=>{e.style.fill=this.fillColor})}}var Nh=o(26),Dh=o.n(Nh);class Mh extends Bf{constructor(e){super(e),this.set('text',''),this.set('position','s');const t=this.bindTemplate;this.setTemplate({tag:'span',attributes:{class:['ck','ck-tooltip',t.to('position',(e)=>'ck-tooltip_'+e),t.if('text','ck-hidden',(e)=>!e.trim())]},children:[{tag:'span',attributes:{class:['ck','ck-tooltip__text']},children:[{text:t.to('text')}]}]})}}var Bh=o(28),Lh=o.n(Bh);class zh extends Bf{constructor(e){super(e);const t=this.bindTemplate,o=i();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(o),this.iconView=new Fh,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',t.if('isEnabled','ck-disabled',(e)=>!e),t.if('isVisible','ck-hidden',(e)=>!e),t.to('isOn',(e)=>e?'ck-on':'ck-off'),t.if('withText','ck-button_with-text')],type:t.to('type',(e)=>e?e:'button'),tabindex:t.to('tabindex'),"aria-labelledby":`ck-editor__aria-label_${o}`,"aria-disabled":t.if('isEnabled',!0,(e)=>!e),"aria-pressed":t.if('isOn',!0)},children:this.children,on:{mousedown:t.to((e)=>{e.preventDefault()}),click:t.to((e)=>{this.isEnabled?this.fire('execute'):e.preventDefault()})}})}render(){super.render(),this.icon&&(this.iconView.bind('content').to(this,'icon'),this.children.add(this.iconView)),this.children.add(this.tooltipView),this.children.add(this.labelView)}focus(){this.element.focus()}_createTooltipView(){const e=new Mh;return e.bind('text').to(this,'_tooltipString'),e.bind('position').to(this,'tooltipPosition'),e}_createLabelView(e){const t=new Bf;return t.setTemplate({tag:'span',attributes:{class:['ck','ck-button__label'],id:`ck-editor__aria-label_${e}`},children:[{text:this.bindTemplate.to('label')}]}),t}_getTooltipString(e,t,o){return e?'string'==typeof e?e:(o&&(o=ne(o)),e instanceof Function?e(t,o):`${t}${o?` (${o})`:''}`):''}}var jh=o(30),qh=o.n(jh),Wh=o(31),Uh=o.n(Wh);class Hh extends lh{init(){const e=this.editor,o=e.t;this._addButton('undo',o('ai'),'CTRL+Z',qh.a),this._addButton('redo',o('aj'),'CTRL+Y',Uh.a)}_addButton(e,t,o,n){const i=this.editor;i.ui.componentFactory.add(e,(r)=>{const a=i.commands.get(e),s=new zh(r);return s.set({label:t,icon:n,keystroke:o,tooltip:!0}),s.bind('isEnabled').to(a,'isEnabled'),this.listenTo(s,'execute',()=>i.execute(e)),s})}}class Kh extends lh{static get requires(){return[Ih,Hh]}static get pluginName(){return'Undo'}}class Gh extends lh{static get requires(){return[uh,hh,kh,Ph,Kh]}static get pluginName(){return'Essentials'}}class $h extends lh{static get pluginName(){return'PendingActions'}init(){this.set('isPending',!1),this._actions=new Gc({idProperty:'_id'}),this._actions.delegate('add','remove').to(this)}add(e){if('string'!=typeof e)throw new _s('pendingactions-add-invalid-message: The message must be a string.');const t=Object.create(Mc);return t.set('message',e),this._actions.add(t),this.isPending=!0,t}remove(e){this._actions.remove(e),this.isPending=!!this._actions.length}get first(){return this._actions.get(0)}[Symbol.iterator](){return this._actions[Symbol.iterator]()}}class Jh{constructor(){const e=new window.FileReader;this._reader=e,this.set('loaded',0),e.onprogress=(e)=>{this.loaded=e.loaded}}get error(){return this._reader.error}read(e){const t=this._reader;return this.total=e.size,new Promise((o,n)=>{t.onload=()=>{o(t.result)},t.onerror=()=>{n('error')},t.onabort=()=>{n('aborted')},this._reader.readAsDataURL(e)})}abort(){this._reader.abort()}}f(Jh,Mc);class Qh extends lh{static get pluginName(){return'FileRepository'}static get requires(){return[$h]}init(){this.loaders=new Gc,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',(e,t)=>t?100*(e/t):0)}getLoader(e){for(const t of this.loaders)if(t.file==e)return t;return null}createLoader(e){if(!this.createUploadAdapter)return Xm.error('filerepository-no-upload-adapter: Upload adapter is not defined.'),null;const t=new Yh(e);return t._adapter=this.createUploadAdapter(t),this.loaders.add(t),t.on('change:uploaded',()=>{let e=0;for(const t of this.loaders)e+=t.uploaded;this.uploaded=e}),t.on('change:uploadTotal',()=>{let e=0;for(const t of this.loaders)t.uploadTotal&&(e+=t.uploadTotal);this.uploadTotal=e}),t}destroyLoader(e){const t=e instanceof Yh?e:this.getLoader(e);t._destroy(),this.loaders.remove(t)}_updatePendingAction(){const e=this.editor.plugins.get($h);if(!this.loaders.length)e.remove(this._pendingAction),this._pendingAction=null;else if(!this._pendingAction){const o=this.editor.t,t=(e)=>`${o('ae')} ${parseInt(e)}%.`;this._pendingAction=e.add(t(this.uploadedPercent)),this._pendingAction.bind('message').to(this,'uploadedPercent',t)}}}f(Qh,Mc);class Yh{constructor(e,t){this.id=i(),this.file=e,this._adapter=t,this._reader=new Jh,this.set('status','idle'),this.set('uploaded',0),this.set('uploadTotal',null),this.bind('uploadedPercent').to(this,'uploaded',this,'uploadTotal',(e,t)=>t?100*(e/t):0),this.set('uploadResponse',null)}read(){if('idle'!=this.status)throw new _s('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((e)=>(this.status='idle',e)).catch((e)=>{if('aborted'===e)throw this.status='aborted','aborted';throw this.status='error',this._reader.error})}upload(){if('idle'!=this.status)throw new _s('filerepository-upload-wrong-status: You cannot call upload if the status is different than idle.');return this.status='uploading',this._adapter.upload().then((e)=>(this.uploadResponse=e,this.status='idle',e)).catch((e)=>{if('aborted'===this.status)throw'aborted';throw this.status='error',e})}abort(){const e=this.status;this.status='aborted','reading'==e&&this._reader.abort(),'uploading'==e&&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}}f(Yh,Mc);const Xh='ckCsrfToken',Zh=40,eb='abcdefghijklmnopqrstuvwxyz0123456789';class tb extends lh{static get requires(){return[Qh]}static get pluginName(){return'CKFinderUploadAdapter'}init(){const e=this.editor.config.get('ckfinder.uploadUrl');e&&(this.editor.plugins.get(Qh).createUploadAdapter=(t)=>new ob(t,e,this.editor.t))}}class ob{constructor(e,o,n){this.loader=e,this.url=o,this.t=n}upload(){return new Promise((e,t)=>{this._initRequest(),this._initListeners(e,t),this._sendRequest()})}abort(){this.xhr&&this.xhr.abort()}_initRequest(){const e=this.xhr=new XMLHttpRequest;e.open('POST',this.url,!0),e.responseType='json'}_initListeners(e,o){const n=this.xhr,i=this.loader,r=this.t,t=r('a')+` ${i.file.name}.`;n.addEventListener('error',()=>o(t)),n.addEventListener('abort',()=>o()),n.addEventListener('load',()=>{const i=n.response;return i&&i.uploaded?void e({default:i.url}):o(i&&i.error&&i.error.message?i.error.message:t)}),n.upload&&n.upload.addEventListener('progress',(e)=>{e.lengthComputable&&(i.uploadTotal=e.total,i.uploaded=e.loaded)})}_sendRequest(){const e=new FormData;e.append('upload',this.loader.file),e.append('ckCsrfToken',Wi()),this.xhr.send(e)}}class nb{constructor(e,t,o){let n;if('function'==typeof o)n=o;else{n=()=>{e.execute(o)}}e.model.document.on('change',(o,i)=>{if('transparent'==i.type)return;const r=Array.from(e.model.document.differ.getChanges()),a=r[0];if(1!=r.length||'insert'!==a.type||'$text'!=a.name||1!=a.length)return;const s=a.position.textNode||a.position.nodeAfter;if(!s.parent.is('paragraph'))return;const l=t.exec(s.data);l&&e.model.enqueueChange((e)=>{const t=pu.createFromParentsAndOffsets(s.parent,0,s.parent,l[0].length);e.remove(t),n({match:l})})})}}class ib{constructor(e,t,o){let n,i,r,a;t instanceof RegExp?n=t:r=t,'string'==typeof o?i=o:a=o,r=r||((e)=>{let t;const o=[],i=[];for(;null!==(t=n.exec(e))&&!(t&&4>t.length);){let{index:e,1:n,2:r,3:a}=t;e+=t[0].length-(n+r+a).length;const s=[e,e+n.length],l=[e+n.length+r.length,e+n.length+r.length+a.length];o.push(s),o.push(l),i.push([e+n.length,e+n.length+r.length])}return{remove:o,format:i}}),a=a||((e,t)=>{for(const o of t)e.setAttribute(i,!0,o);e.removeSelectionAttribute(i)}),e.model.document.on('change',(t,o)=>{if('transparent'==o.type)return;const n=e.model.document.selection;if(!n.isCollapsed)return;const s=Array.from(e.model.document.differ.getChanges()),l=s[0];if(1!=s.length||'insert'!==l.type||'$text'!=l.name||1!=l.length)return;const d=n.focus.parent,c=Gi(d).slice(0,n.focus.offset),m=r(c),u=$i(d,m.format),p=$i(d,m.remove);u.length&&p.length&&e.model.enqueueChange((t)=>{const o=e.model.schema.getValidRanges(u,i);a(t,o);for(const e of p.reverse())t.remove(e)})})}}class rb extends lh{static get pluginName(){return'Autoformat'}afterInit(){this._addListAutoformats(),this._addBasicStylesAutoformats(),this._addHeadingAutoformats(),this._addBlockQuoteAutoformats()}_addListAutoformats(){const e=this.editor.commands;e.get('bulletedList')&&new nb(this.editor,/^[*-]\s$/,'bulletedList'),e.get('numberedList')&&new nb(this.editor,/^\d+[.|)]\s$/,'numberedList')}_addBasicStylesAutoformats(){const e=this.editor.commands;e.get('bold')&&(new ib(this.editor,/(\*\*)([^*]+)(\*\*)$/g,'bold'),new ib(this.editor,/(__)([^_]+)(__)$/g,'bold')),e.get('italic')&&(new ib(this.editor,/(?:^|[^*])(\*)([^*_]+)(\*)$/g,'italic'),new ib(this.editor,/(?:^|[^_])(_)([^_]+)(_)$/g,'italic')),e.get('code')&&new ib(this.editor,/(`)([^`]+)(`)$/g,'code')}_addHeadingAutoformats(){const e=this.editor.commands.get('heading');e&&e.modelElements.filter((e)=>e.match(/^heading[1-6]$/)).forEach((e)=>{const t=e[7],o=new RegExp(`^(#{${t}})\\s$`);new nb(this.editor,o,()=>{this.editor.execute('heading',{value:e})})})}_addBlockQuoteAutoformats(){this.editor.commands.get('blockQuote')&&new nb(this.editor,/^>\s$/,'blockQuote')}}class ab extends ph{constructor(e,t){super(e),this.attributeKey=t}refresh(){const e=this.editor.model,t=e.document;this.value=t.selection.hasAttribute(this.attributeKey),this.isEnabled=e.schema.checkAttributeInSelection(t.selection,this.attributeKey)}execute(e={}){const t=this.editor.model,o=t.document,n=o.selection,i=e.forceValue===void 0?!this.value:e.forceValue;t.change((e)=>{if(n.isCollapsed)i?e.setSelectionAttribute(this.attributeKey,!0):e.removeSelectionAttribute(this.attributeKey);else{const o=t.schema.getValidRanges(n.getRanges(),this.attributeKey);for(const t of o)i?e.setAttribute(this.attributeKey,i,t):e.removeAttribute(this.attributeKey,t)}})}}const sb='bold';class lb extends lh{init(){const e=this.editor;e.model.schema.extend('$text',{allowAttributes:sb}),e.conversion.attributeToElement({model:sb,view:'strong',upcastAlso:['b',{styles:{"font-weight":'bold'}}]}),e.commands.add(sb,new ab(e,sb)),e.keystrokes.set('CTRL+B',sb)}}var db=o(32),cb=o.n(db);const mb='bold';class ub extends lh{init(){const e=this.editor,o=e.t;e.ui.componentFactory.add(mb,(t)=>{const n=e.commands.get(mb),i=new zh(t);return i.set({label:o('d'),icon:cb.a,keystroke:'CTRL+B',tooltip:!0}),i.bind('isOn','isEnabled').to(n,'value','isEnabled'),this.listenTo(i,'execute',()=>e.execute(mb)),i})}}class pb extends lh{static get requires(){return[lb,ub]}static get pluginName(){return'Bold'}}const gb='italic';class fb extends lh{init(){const e=this.editor;e.model.schema.extend('$text',{allowAttributes:gb}),e.conversion.attributeToElement({model:gb,view:'i',upcastAlso:['em',{styles:{"font-style":'italic'}}]}),e.commands.add(gb,new ab(e,gb)),e.keystrokes.set('CTRL+I',gb)}}var hb=o(33),bb=o.n(hb);const kb='italic';class _b extends lh{init(){const e=this.editor,o=e.t;e.ui.componentFactory.add(kb,(t)=>{const n=e.commands.get(kb),i=new zh(t);return i.set({label:o('c'),icon:bb.a,keystroke:'CTRL+I',tooltip:!0}),i.bind('isOn','isEnabled').to(n,'value','isEnabled'),this.listenTo(i,'execute',()=>e.execute(kb)),i})}}class wb extends lh{static get requires(){return[fb,_b]}static get pluginName(){return'Italic'}}class vb extends ph{refresh(){this.value=this._getValue(),this.isEnabled=this._checkEnabled()}execute(){const e=this.editor.model,t=e.document,o=e.schema,n=Array.from(t.selection.getSelectedBlocks());e.change((e)=>{if(this.value)this._removeQuote(e,n.filter(Qi));else{const t=n.filter((e)=>Qi(e)||Xi(o,e));this._applyQuote(e,t)}})}_getValue(){const e=Ji(this.editor.model.document.selection.getSelectedBlocks());return!!(e&&Qi(e))}_checkEnabled(){if(this.value)return!0;const e=this.editor.model.document.selection,t=this.editor.model.schema,o=Ji(e.getSelectedBlocks());return!!o&&Xi(t,o)}_removeQuote(e,t){Yi(t).reverse().forEach((t)=>{if(t.start.isAtStart&&t.end.isAtEnd)return void e.unwrap(t.start.parent);if(t.start.isAtStart){const o=uu.createBefore(t.start.parent);return void e.move(t,o)}t.end.isAtEnd||e.split(t.end);const o=uu.createAfter(t.end.parent);e.move(t,o)})}_applyQuote(e,t){const o=[];Yi(t).reverse().forEach((t)=>{let n=Qi(t.start);n||(n=new du('blockQuote'),e.wrap(t,n)),o.push(n)}),o.reverse().reduce((t,o)=>t.nextSibling==o?(e.merge(uu.createAfter(t)),t):o)}}class yb extends lh{init(){const e=this.editor,t=e.model.schema;e.commands.add('blockQuote',new vb(e)),t.register('blockQuote',{allowWhere:'$block',allowContentOf:'$root'}),t.addChildCheck((e,t)=>{if(e.endsWith('blockQuote')&&'blockQuote'==t.name)return!1}),e.conversion.elementToElement({model:'blockQuote',view:'blockquote'})}afterInit(){const e=this.editor,t=e.commands.get('blockQuote');this.listenTo(this.editor.editing.view.document,'enter',(e,o)=>{const n=this.editor.model.document,i=n.selection.getLastPosition().parent;n.selection.isCollapsed&&i.isEmpty&&t.value&&(this.editor.execute('blockQuote'),this.editor.editing.view.scrollToTheSelection(),o.preventDefault(),e.stop())})}}var xb=o(34),Cb=o.n(xb),Ab=o(35),Tb=o.n(Ab);class Pb extends lh{init(){const e=this.editor,o=e.t;e.ui.componentFactory.add('blockQuote',(t)=>{const n=e.commands.get('blockQuote'),i=new zh(t);return i.set({label:o('b'),icon:Cb.a,tooltip:!0}),i.bind('isOn','isEnabled').to(n,'value','isEnabled'),this.listenTo(i,'execute',()=>e.execute('blockQuote')),i})}}class Eb extends lh{static get requires(){return[yb,Pb]}static get pluginName(){return'BlockQuote'}}const Sb=/^data:(\S*?);base64,/;class Ob{constructor(e,t,o){if(!e)throw new Error('File must be provided');if(!t)throw new Error('Token must be provided');if(!o)throw new Error('Api address must be provided');this.file=er(e)?Zi(e):e,this._token=t,this._apiAddress=o}onProgress(e){return this.on('progress',(t,o)=>e(o)),this}onError(e){return this.once('error',(t,o)=>e(o)),this}abort(){this.xhr.abort()}send(){return this._prepareRequest(),this._attachXHRListeners(),this._sendRequest()}_prepareRequest(){const e=new XMLHttpRequest;e.open('POST',this._apiAddress),e.setRequestHeader('Authorization',this._token.value),e.responseType='json',this.xhr=e}_attachXHRListeners(){function e(e){return()=>t.fire('error',e)}const t=this,o=this.xhr;o.addEventListener('error',e('Network Error')),o.addEventListener('abort',e('Abort')),o.upload&&o.upload.addEventListener('progress',(e)=>{e.lengthComputable&&this.fire('progress',{total:e.total,uploaded:e.loaded})}),o.addEventListener('load',()=>{const e=o.status,t=o.response;if(200>e||299<e)return this.fire('error',t.message||t.error)})}_sendRequest(){const e=new FormData,t=this.xhr;return e.append('file',this.file),new Promise((o,n)=>{t.addEventListener('load',()=>{const e=t.status,i=t.response;return 200>e||299<e?n(i.message||i.error):o(i)}),t.addEventListener('error',()=>n('Network Error')),t.addEventListener('abort',()=>n('Abort')),t.send(e)})}}f(Ob,Ps);const Ib={refreshInterval:36e5,autoRefresh:!0};class Rb{constructor(e,t=Ib){if(!e)throw new Error('`tokenUrl` must be provided');this.set('value',t.initValue),this._tokenUrl=e,this._options=Object.assign({},Ib,t)}init(){return new Promise((e,t)=>(this._options.autoRefresh&&this._startRefreshing(),this.value?void e(this):void this._refreshToken().then(e).catch(t)))}_refreshToken(){return new Promise((e,t)=>{const o=new XMLHttpRequest;o.open('GET',this._tokenUrl),o.addEventListener('load',()=>{const n=o.status,i=o.response;return 200>n||299<n?t('Cannot download new token!'):(this.set('value',i),e(this))}),o.addEventListener('error',()=>t('Network Error')),o.addEventListener('abort',()=>t('Abort')),o.send()})}_startRefreshing(){this._refreshInterval=setInterval(this._refreshToken.bind(this),this._options.refreshInterval)}_stopRefreshing(){clearInterval(this._refreshInterval)}static create(e,t=Ib){const o=new Rb(e,t);return o.init()}}f(Rb,Mc);class Vb extends lh{init(){const e=this.editor,t=e.config,o=t.get('cloudServices')||{};for(const e in o)this[e]=o[e];return this.tokenUrl?(this.token=new Vb.Token(this.tokenUrl),this.token.init()):void(this.token=null)}}Vb.Token=Rb;class Fb extends lh{static get requires(){return[Qh,Vb]}init(){const e=this.editor,t=e.plugins.get(Vb),o=t.token,n=t.uploadUrl;o&&(this._uploadGateway=new Fb._UploadGateway(o,n),e.plugins.get(Qh).createUploadAdapter=(e)=>new Nb(this._uploadGateway,e))}}class Nb{constructor(e,t){this.uploadGateway=e,this.loader=t}upload(){return this.fileUploader=this.uploadGateway.upload(this.loader.file),this.fileUploader.on('progress',(e,t)=>{this.loader.uploadTotal=t.total,this.loader.uploaded=t.uploaded}),this.fileUploader.send()}abort(){this.fileUploader.abort()}}Fb._UploadGateway=class{constructor(e,t){if(!e)throw new Error('Token must be provided');if(!t)throw new Error('Api address must be provided');this._token=e,this._apiAddress=t}upload(e){return new Ob(e,this._token,this._apiAddress)}};class Db{constructor(){this._stack=[]}add(e,t){const o=this._stack,n=o[0];this._insertDescriptor(e);const i=o[0];n===i||ir(n,i)||this.fire('change:top',{oldDescriptor:n,newDescriptor:i,writer:t})}remove(e,t){const o=this._stack,n=o[0];this._removeDescriptor(e);const i=o[0];n===i||ir(n,i)||this.fire('change:top',{oldDescriptor:n,newDescriptor:i,writer:t})}_insertDescriptor(e){const t=this._stack,o=t.findIndex((t)=>t.id===e.id);if(!ir(e,t[o])){-1<o&&t.splice(o,1);let n=0;for(;t[n]&&rr(t[n],e);)n++;t.splice(n,0,e)}}_removeDescriptor(e){const t=this._stack,o=t.findIndex((t)=>t.id===e);-1<o&&t.splice(o,1)}}f(Db,Ps);const Mb=Symbol('isWidget'),Bb=Symbol('label'),Lb='ck-widget',zb='ck-widget_selected',jb=Symbol('isImage');class qb extends lh{init(){const e=this.editor,o=e.model.schema,n=e.t,t=e.conversion;o.register('image',{isObject:!0,isBlock:!0,allowWhere:'$block',allowAttributes:['alt','src','srcset']}),t.for('dataDowncast').add(xt({model:'image',view:(e,t)=>kr(t)})),t.for('editingDowncast').add(xt({model:'image',view:(e,t)=>gr(kr(t),t,n('g'))})),t.for('downcast').add(nr('src')).add(nr('alt')).add(or()),t.for('upcast').add(io({view:{name:'img',attributes:{src:!0}},model:(e,t)=>t.createElement('image',{src:e.getAttribute('src')})})).add(ao({view:{name:'img',key:'alt'},model:'alt'})).add(ao({view:{name:'img',key:'srcset'},model:{key:'srcset',value:(e)=>{const t={data:e.getAttribute('srcset')};return e.hasAttribute('width')&&(t.width=e.getAttribute('width')),t}}})).add(tr())}}class Wb extends qm{constructor(e){super(e),this.domEventType='mousedown'}onDomEvent(e){this.fire(e.type,e)}}var Ub=o(37),Hb=o.n(Ub);const Kb=oe('Ctrl+A');class Gb extends lh{static get pluginName(){return'Widget'}init(){const e=this.editor.editing.view,t=e.document;this._previouslySelected=new Set,this.editor.editing.downcastDispatcher.on('selection',(e,t,o)=>{this._clearPreviouslySelectedWidgets(o.writer);const n=o.writer,i=n.document.selection,r=i.getSelectedElement();for(const a of i.getRanges())for(const e of a){const t=e.item;t.is('element')&&sr(t)&&(n.addClass(zb,t),this._previouslySelected.add(t),t==r&&n.setSelection(i.getRanges(),{fake:!0,label:mr(r)}))}},{priority:'low'}),e.addObserver(Wb),this.listenTo(t,'mousedown',(...e)=>this._onMousedown(...e)),this.listenTo(t,'keydown',(...e)=>this._onKeydown(...e),{priority:'high'}),this.listenTo(t,'delete',(e,t)=>{this._handleDelete('forward'==t.direction)&&(t.preventDefault(),e.stop())},{priority:'high'})}_onMousedown(e,t){const o=this.editor,n=o.editing.view,i=n.document;let r=t.target;if(!vr(r)&&(sr(r)||(r=r.findAncestor(sr),!!r))){t.preventDefault(),i.isFocused||n.focus();const e=o.editing.mapper.toModelElement(r);this._setSelectionOverElement(e)}}_onKeydown(e,t){const o=t.keyCode,n=o==nm.delete||o==nm.arrowdown||o==nm.arrowright;let i=!1;_r(o)?i=this._handleArrowKeys(n):wr(t)?i=this._selectAllNestedEditableContent()||this._selectAllContent():o===nm.enter&&(i=this._handleEnterKey(t.shiftKey)),i&&(t.preventDefault(),e.stop())}_handleDelete(e){if(this.editor.isReadOnly)return;const t=this.editor.model.document,o=t.selection;if(!o.isCollapsed)return;const n=this._getObjectElementNextToSelection(e);if(n)return this.editor.model.change((e)=>{for(let t=o.anchor.parent;t.isEmpty;){const o=t;t=o.parent,e.remove(o)}this._setSelectionOverElement(n)}),!0}_handleArrowKeys(e){const t=this.editor.model,o=t.schema,n=t.document,i=n.selection,r=i.getSelectedElement();if(r&&o.isObject(r)){const n=e?i.getLastPosition():i.getFirstPosition(),r=o.getNearestSelectionRange(n,e?'forward':'backward');return r&&t.change((e)=>{e.setSelection(r)}),!0}if(i.isCollapsed){const t=this._getObjectElementNextToSelection(e);if(t instanceof du&&o.isObject(t))return this._setSelectionOverElement(t),!0}}_handleEnterKey(e){const t=this.editor.model,o=t.document.selection,n=o.getSelectedElement();if(n&&t.schema.isObject(n))return t.change((t)=>{const o=t.createElement('paragraph');t.insert(o,n,e?'before':'after'),t.setSelection(o,'in')}),!0}_selectAllNestedEditableContent(){const e=this.editor.model,t=e.document.selection,o=e.schema.getLimitElement(t);return t.getFirstRange().root!=o&&(e.change((e)=>{e.setSelection(pu.createIn(o))}),!0)}_selectAllContent(){const e=this.editor.model,t=this.editor.editing,o=t.view,n=o.document,i=n.selection,r=i.getSelectedElement();if(r&&sr(r)){const o=t.mapper.toModelElement(r.parent);return e.change((e)=>{e.setSelection(pu.createIn(o))}),!0}return!1}_setSelectionOverElement(e){this.editor.model.change((t)=>{t.setSelection(pu.createOn(e))})}_getObjectElementNextToSelection(e){const t=this.editor.model,o=t.schema,n=t.document.selection,i=new bu(n);t.modifySelection(i,{direction:e?'forward':'backward'});const r=e?i.focus.nodeBefore:i.focus.nodeAfter;return r instanceof du&&o.isObject(r)?r:null}_clearPreviouslySelectedWidgets(e){for(const t of this._previouslySelected)e.removeClass(zb,t);this._previouslySelected.clear()}}class $b extends ph{refresh(){const e=this.editor.model.document.selection.getSelectedElement();this.isEnabled=br(e),this.value=!!(br(e)&&e.hasAttribute('alt'))&&e.getAttribute('alt')}execute(e){const t=this.editor.model,o=t.document.selection.getSelectedElement();t.change((t)=>{t.setAttribute('alt',e.newValue,o)})}}class Jb extends lh{init(){this.editor.commands.add('imageTextAlternative',new $b(this.editor))}}class Qb extends Bf{constructor(e,t){super(e);const o=`ck-input-${i()}`;this.set('label'),this.set('value'),this.set('isReadOnly',!1),this.labelView=this._createLabelView(o),this.inputView=this._createInputView(t,o);const n=this.bindTemplate;this.setTemplate({tag:'div',attributes:{class:['ck','ck-labeled-input',n.if('isReadOnly','ck-disabled')]},children:[this.labelView,this.inputView]})}_createLabelView(e){const t=new Uf(this.locale);return t.for=e,t.bind('text').to(this,'label'),t}_createInputView(e,t){const o=new e(this.locale);return o.id=t,o.bind('value').to(this),o.bind('isReadOnly').to(this),o}select(){this.inputView.select()}focus(){this.inputView.focus()}}var Yb=o(39),Xb=o.n(Yb);class Zb extends Bf{constructor(e){super(e),this.set('value'),this.set('id'),this.set('placeholder'),this.set('isReadOnly',!1);const t=this.bindTemplate;this.setTemplate({tag:'input',attributes:{type:'text',class:['ck','ck-input','ck-input-text'],id:t.to('id'),placeholder:t.to('placeholder'),readonly:t.to('isReadOnly')}})}render(){super.render();const e=(e)=>{this.element.value=e||0===e?e:''};e(this.value),this.on('change:value',(t,o,n)=>{e(n)})}select(){this.element.select()}focus(){this.element.focus()}}var ek=o(3),tk=o.n(ek),ok=o(4),nk=o.n(ok),ik=o(41),rk=o.n(ik);class ak extends Bf{constructor(e){super(e);const o=this.locale.t;this.focusTracker=new Ef,this.keystrokes=new wf,this.labeledInput=this._createLabeledInputView(),this.saveButtonView=this._createButton(o('ab'),tk.a,'ck-button-save'),this.saveButtonView.type='submit',this.cancelButtonView=this._createButton(o('ac'),nk.a,'ck-button-cancel','cancel'),this._focusables=new Of,this._focusCycler=new Xf({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),xr({view:this}),[this.labeledInput,this.saveButtonView,this.cancelButtonView].forEach((e)=>{this._focusables.add(e),this.focusTracker.add(e.element)})}_createButton(e,t,o,n){const i=new zh(this.locale);return i.set({label:e,icon:t,tooltip:!0}),i.extendTemplate({attributes:{class:o}}),n&&i.delegate('execute').to(this,n),i}_createLabeledInputView(){const e=this.locale.t,t=new Qb(this.locale,Zb);return t.label=e('ah'),t.inputView.placeholder=e('ah'),t}}var sk=o(43),lk=o.n(sk);const dk=bi('px'),ck=gm.document.body;class mk extends Bf{constructor(e){super(e);const t=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',t.to('position',(e)=>`ck-balloon-panel_${e}`),t.if('isVisible','ck-balloon-panel_visible'),t.if('withArrow','ck-balloon-panel_with-arrow'),t.to('className')],style:{top:t.to('top',dk),left:t.to('left',dk)}},children:this.content})}show(){this.isVisible=!0}hide(){this.isVisible=!1}attachTo(e){this.show();const t=mk.defaultPositions,o=Object.assign({},{element:this.element,positions:[t.southArrowNorth,t.southArrowNorthWest,t.southArrowNorthEast,t.northArrowSouth,t.northArrowSouthWest,t.northArrowSouthEast],limiter:ck,fitInViewport:!0},e),{top:n,left:i,name:r}=Ar(o);Object.assign(this,{top:n,left:i,position:r})}pin(e){this.unpin(),this._pinWhenIsVisibleCallback=()=>{this.isVisible?this._startPinning(e):this._stopPinning()},this._startPinning(e),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(e){this.attachTo(e);const t=Sr(e.target),o=e.limiter?Sr(e.limiter):ck;this.listenTo(gm.document,'scroll',(n,i)=>{const r=i.target,a=t&&r.contains(t),s=o&&r.contains(o);(a||s||!t||!o)&&this.attachTo(e)},{useCapture:!0}),this.listenTo(gm.window,'resize',()=>{this.attachTo(e)})}_stopPinning(){this.stopListening(gm.document,'scroll'),this.stopListening(gm.window,'resize')}}mk.arrowHorizontalOffset=25,mk.arrowVerticalOffset=10,mk.defaultPositions={northArrowSouth:(e,t)=>({top:Or(e,t),left:e.left+e.width/2-t.width/2,name:'arrow_s'}),northArrowSouthEast:(e,t)=>({top:Or(e,t),left:e.left+e.width/2-t.width+mk.arrowHorizontalOffset,name:'arrow_se'}),northArrowSouthWest:(e,t)=>({top:Or(e,t),left:e.left+e.width/2-mk.arrowHorizontalOffset,name:'arrow_sw'}),northWestArrowSouth:(e,t)=>({top:Or(e,t),left:e.left-t.width/2,name:'arrow_s'}),northWestArrowSouthWest:(e,t)=>({top:Or(e,t),left:e.left-mk.arrowHorizontalOffset,name:'arrow_sw'}),northWestArrowSouthEast:(e,t)=>({top:Or(e,t),left:e.left-t.width+mk.arrowHorizontalOffset,name:'arrow_se'}),northEastArrowSouth:(e,t)=>({top:Or(e,t),left:e.right-t.width/2,name:'arrow_s'}),northEastArrowSouthEast:(e,t)=>({top:Or(e,t),left:e.right-t.width+mk.arrowHorizontalOffset,name:'arrow_se'}),northEastArrowSouthWest:(e,t)=>({top:Or(e,t),left:e.right-mk.arrowHorizontalOffset,name:'arrow_sw'}),southArrowNorth:(e,t)=>({top:Ir(e,t),left:e.left+e.width/2-t.width/2,name:'arrow_n'}),southArrowNorthEast:(e,t)=>({top:Ir(e,t),left:e.left+e.width/2-t.width+mk.arrowHorizontalOffset,name:'arrow_ne'}),southArrowNorthWest:(e,t)=>({top:Ir(e,t),left:e.left+e.width/2-mk.arrowHorizontalOffset,name:'arrow_nw'}),southWestArrowNorth:(e,t)=>({top:Ir(e,t),left:e.left-t.width/2,name:'arrow_n'}),southWestArrowNorthWest:(e,t)=>({top:Ir(e,t),left:e.left-mk.arrowHorizontalOffset,name:'arrow_nw'}),southWestArrowNorthEast:(e,t)=>({top:Ir(e,t),left:e.left-t.width+mk.arrowHorizontalOffset,name:'arrow_ne'}),southEastArrowNorth:(e,t)=>({top:Ir(e,t),left:e.right-t.width/2,name:'arrow_n'}),southEastArrowNorthEast:(e,t)=>({top:Ir(e,t),left:e.right-t.width+mk.arrowHorizontalOffset,name:'arrow_ne'}),southEastArrowNorthWest:(e,t)=>({top:Ir(e,t),left:e.right-mk.arrowHorizontalOffset,name:'arrow_nw'})};class uk extends lh{static get pluginName(){return'ContextualBalloon'}init(){this.view=new mk,this.positionLimiter=()=>{const e=this.editor.editing.view,t=e.document,o=t.selection.editableElement;return o?e.domConverter.mapViewToDom(o.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 e=this._stack.get(this.view.content.get(0));return e?e.view:null}hasView(e){return this._stack.has(e)}add(e){if(this.hasView(e.view))throw new _s('contextualballoon-add-view-exist: Cannot add configuration of the same view twice.');this.visibleView&&this.view.content.remove(this.visibleView),this._stack.set(e.view,e),this._show(e)}remove(e){if(!this.hasView(e))throw new _s('contextualballoon-remove-view-not-exist: Cannot remove configuration of not existing view.');if(this.visibleView===e){this.view.content.remove(e),this._stack.delete(e);const t=Array.from(this._stack.values()).pop();t?this._show(t):this.view.hide()}else this._stack.delete(e)}updatePosition(e){e&&(this._stack.get(this.visibleView).position=e),this.view.pin(this._getBalloonPosition())}_show({view:e,balloonClassName:t=''}){this.view.className=t,this.view.content.add(e),this.view.pin(this._getBalloonPosition())}_getBalloonPosition(){let e=Array.from(this._stack.values()).pop().position;return e&&!e.limiter&&(e=Object.assign({},e,{limiter:this.positionLimiter})),e}}var pk=o(45),gk=o.n(pk);class fk extends lh{static get requires(){return[uk]}init(){this._createButton(),this._createForm()}_createButton(){const e=this.editor,o=e.t;e.ui.componentFactory.add('imageTextAlternative',(t)=>{const n=e.commands.get('imageTextAlternative'),i=new zh(t);return i.set({label:o('w'),icon:gk.a,tooltip:!0}),i.bind('isEnabled').to(n,'isEnabled'),this.listenTo(i,'execute',()=>this._showForm()),i})}_createForm(){const e=this.editor,t=e.editing.view,o=t.document;this._balloon=this.editor.plugins.get('ContextualBalloon'),this._form=new ak(e.locale),this._form.render(),this.listenTo(this._form,'submit',()=>{e.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',(e,t)=>{this._hideForm(!0),t()}),this.listenTo(t,'render',()=>{hr(o.selection)?this._isVisible&&Rr(e):this._hideForm(!0)}),yr({emitter:this._form,activator:()=>this._isVisible,contextElements:[this._form.element],callback:()=>this._hideForm()})}_showForm(){if(!this._isVisible){const e=this.editor,t=e.commands.get('imageTextAlternative'),o=this._form.labeledInput;this._balloon.hasView(this._form)||this._balloon.add({view:this._form,position:Vr(e)}),o.value=o.inputView.element.value=t.value||'',this._form.labeledInput.select()}}_hideForm(e){this._isVisible&&(this._balloon.remove(this._form),e&&this.editor.editing.view.focus())}get _isVisible(){return this._balloon.visibleView==this._form}}class hk extends lh{static get requires(){return[Jb,fk]}static get pluginName(){return'ImageTextAlternative'}}var bk=o(46),kk=o.n(bk);class _k extends lh{static get requires(){return[qb,Gb,hk]}static get pluginName(){return'Image'}}class wk extends Bf{constructor(e){super(e),this.buttonView=new zh(e),this._fileInputView=new vk(e),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 vk extends Bf{constructor(e){super(e),this.set('acceptedType'),this.set('allowMultipleFiles',!1);const t=this.bindTemplate;this.setTemplate({tag:'input',attributes:{class:['ck-hidden'],type:'file',tabindex:'-1',accept:t.to('acceptedType'),multiple:t.to('allowMultipleFiles')},on:{change:t.to(()=>{this.element&&this.element.files&&this.element.files.length&&this.fire('done',this.element.files),this.element.value=''})}})}open(){this.element.click()}}var yk=o(48),xk=o.n(yk);class Ck extends lh{init(){const e=this.editor,o=e.t;e.ui.componentFactory.add('imageUpload',(t)=>{const n=new wk(t),i=e.commands.get('imageUpload');return n.set({acceptedType:'image/*',allowMultipleFiles:!0}),n.buttonView.set({label:o('n'),icon:xk.a,tooltip:!0}),n.buttonView.bind('isEnabled').to(i),n.on('done',(t,o)=>{for(const n of Array.from(o)){const t=Nr(e.model.document.selection);Fr(n)&&e.execute('imageUpload',{file:n,insertAt:t})}}),n})}}var Ak=o(49),Tk=o.n(Ak),Pk=o(50),Ek=o.n(Pk),Sk=o(52),Ok=o.n(Sk);class Ik extends lh{constructor(e){super(e),this.placeholder='data:image/svg+xml;utf8,'+encodeURIComponent(Tk.a)}init(){const e=this.editor;e.editing.downcastDispatcher.on('attribute:uploadStatus:image',(...e)=>this.uploadStatusChange(...e))}uploadStatusChange(e,t,o){const n=this.editor,i=t.item,r=i.getAttribute('uploadId');if(o.consumable.consume(t.item,e.name)){const e=n.plugins.get(Qh),a=r?t.attributeNewValue:null,s=this.placeholder,l=n.editing.mapper.toViewElement(i),d=o.writer;if('reading'==a)return Dr(l,d),void Br(s,l,d);if('uploading'==a){const t=e.loaders.get(r);return Dr(l,d),void(t?(Lr(l,d),zr(l,d,t,n.editing.view)):Br(s,l,d))}'complete'==a&&e.loaders.get(r)&&qr(l,d,n.editing.view),jr(l,d),Lr(l,d),Mr(l,d)}}}const Rk=Symbol('progress-bar');class Vk extends ph{execute(e){const t=this.editor,o=t.model.document,n=e.file,i=t.plugins.get(Qh);t.model.change((r)=>{const a=i.createLoader(n);if(!a)return;const s=r.createElement('image',{uploadId:a.id});let l;l=e.insertAt?new bu([new pu(e.insertAt)]):o.selection,t.model.insertContent(s,l),s.parent&&r.setSelection(s,'on')})}}class Fk extends lh{static get pluginName(){return'Notification'}init(){this.on('show:warning',(e,t)=>{window.alert(t.message)},{priority:'lowest'})}showSuccess(e,t={}){this._showNotification({message:e,type:'success',namespace:t.namespace,title:t.title})}showInfo(e,t={}){this._showNotification({message:e,type:'info',namespace:t.namespace,title:t.title})}showWarning(e,t={}){this._showNotification({message:e,type:'warning',namespace:t.namespace,title:t.title})}_showNotification(e){const t=`show:${e.type}`+(e.namespace?`:${e.namespace}`:'');this.fire(t,{message:e.message,type:e.type,title:e.title||''})}}class Nk extends lh{static get requires(){return[Qh,Fk]}init(){const e=this.editor,t=e.model.document,o=e.model.schema,n=e.plugins.get(Qh);o.extend('image',{allowAttributes:['uploadId','uploadStatus']}),e.commands.add('imageUpload',new Vk(e)),this.listenTo(e.editing.view.document,'clipboardInput',(o,i)=>{if(Hr(i.dataTransfer))return;let r=new bu(i.targetRanges.map((t)=>e.editing.mapper.toModelRange(t)));for(const a of i.dataTransfer.files){if(Fr(a)){const t=Nr(r);e.model.change((o)=>{const i=n.createLoader(a);if(i){const n=o.createElement('image',{uploadId:i.id}),r=new bu([new pu(t)]);e.model.insertContent(n,r),n.parent&&o.setSelection(n,'on')}}),o.stop()}r=t.selection}}),e.editing.view.document.on('dragover',(e,t)=>{t.preventDefault()}),t.on('change',()=>{const e=t.differ.getChanges({includeChangesInGraveyard:!0});for(const t of e)if('insert'==t.type&&'image'==t.name){const e=t.position.nodeAfter,o='$graveyard'==t.position.root.rootName,i=e.getAttribute('uploadId');if(!i)continue;const r=n.loaders.get(i);if(!r)continue;o?r.abort():'idle'==r.status&&this._load(r,e)}})}_load(e,o){function n(){r.enqueueChange('transparent',(e)=>{e.removeAttribute('uploadId',o),e.removeAttribute('uploadStatus',o)}),t.destroyLoader(e)}const i=this.editor,r=i.model,a=i.locale.t,t=i.plugins.get(Qh),s=i.plugins.get(Fk);return r.enqueueChange('transparent',(e)=>{e.setAttribute('uploadStatus','reading',o)}),e.read().then((t)=>{const n=i.editing.mapper.toViewElement(o),a=n.getChild(0),s=e.upload();return i.editing.view.change((e)=>{e.setAttribute('src',t,a)}),r.enqueueChange('transparent',(e)=>{e.setAttribute('uploadStatus','uploading',o)}),s}).then((e)=>{r.enqueueChange('transparent',(t)=>{t.setAttributes({uploadStatus:'complete',src:e.default},o);let n=0;const i=Object.keys(e).filter((e)=>{const t=parseInt(e,10);if(!isNaN(t))return n=is(n,t),!0}).map((t)=>`${e[t]} ${t}w`).join(', ');''!=i&&t.setAttribute('srcset',{data:i,width:n},o)}),n()}).catch((t)=>{if('error'!==e.status&&'aborted'!==e.status)throw t;'error'==e.status&&s.showWarning(t,{title:a('o'),namespace:'upload'}),n(),r.enqueueChange('transparent',(e)=>{e.remove(o)})})}}class Dk extends lh{static get pluginName(){return'ImageUpload'}static get requires(){return[Nk,Ck,Ik]}}class Mk extends lh{static get requires(){return[Fb,_k,Dk]}static get pluginName(){return'EasyImage'}}class Bk extends ph{refresh(){const e=this.editor.model,t=e.document,o=Ji(t.selection.getSelectedBlocks());this.value=!!o&&o.is('paragraph'),this.isEnabled=!!o&&Kr(o,e.schema)}execute(e={}){const t=this.editor.model,o=t.document;t.change((n)=>{const i=(e.selection||o.selection).getSelectedBlocks();for(const e of i)!e.is('paragraph')&&Kr(e,t.schema)&&n.rename(e,'paragraph')})}}class Lk extends lh{static get pluginName(){return'Paragraph'}init(){const e=this.editor,t=e.model,o=e.data;e.commands.add('paragraph',new Bk(e)),t.schema.register('paragraph',{inheritAllFrom:'$block'}),e.conversion.elementToElement({model:'paragraph',view:'p'}),o.upcastDispatcher.on('element',(e,t,o)=>{if(o.consumable.test(t.viewItem,{name:t.viewItem.name}))if(Lk.paragraphLikeElements.has(t.viewItem.name)){if(t.viewItem.isEmpty)return;const e=o.writer.createElement('paragraph'),n=o.splitToAllowedParent(e,t.modelCursor);if(!n)return;o.writer.insert(e,n.position);const{modelRange:i}=o.convertChildren(t.viewItem,uu.createAt(e));t.modelRange=new pu(uu.createBefore(e),i.end),t.modelCursor=t.modelRange.end}else $r(t.viewItem,t.modelCursor,o.schema)&&(t=Object.assign(t,Gr(t.viewItem,t.modelCursor,o)))},{priority:'low'}),o.upcastDispatcher.on('text',(e,t,o)=>{t.modelRange||$r(t.viewItem,t.modelCursor,o.schema)&&(t=Object.assign(t,Gr(t.viewItem,t.modelCursor,o)))},{priority:'lowest'}),t.document.registerPostFixer((e)=>this._autoparagraphEmptyRoots(e)),e.on('dataReady',()=>{t.enqueueChange('transparent',(e)=>this._autoparagraphEmptyRoots(e))},{priority:'lowest'})}_autoparagraphEmptyRoots(e){const t=this.editor.model;for(const o of t.document.getRootNames()){const n=t.document.getRoot(o);if(n.isEmpty&&'$graveyard'!=n.rootName&&t.schema.checkChild(n,'paragraph'))return e.insertElement('paragraph',n),!0}}}Lk.paragraphLikeElements=new Set(['blockquote','dd','div','dt','h1','h2','h3','h4','h5','h6','li','p','td']);class zk extends ph{constructor(e,t){super(e),this.modelElements=t}refresh(){const e=Ji(this.editor.model.document.selection.getSelectedBlocks());this.value=!!e&&this.modelElements.includes(e.name)&&e.name,this.isEnabled=!!e&&this.modelElements.some((t)=>Jr(e,t,this.editor.model.schema))}execute(e){const t=this.editor.model,o=t.document,n=e.value;t.change((e)=>{const i=Array.from(o.selection.getSelectedBlocks()).filter((e)=>Jr(e,n,t.schema));for(const t of i)t.is(n)||e.rename(t,n)})}}const jk='paragraph';class qk extends lh{constructor(e){super(e),e.config.define('heading',{options:[{model:'paragraph',title:'Paragraph',class:'ck-heading_paragraph'},{model:'heading1',view:'h2',title:'Heading 1',class:'ck-heading_heading1'},{model:'heading2',view:'h3',title:'Heading 2',class:'ck-heading_heading2'},{model:'heading3',view:'h4',title:'Heading 3',class:'ck-heading_heading3'}]})}static get requires(){return[Lk]}init(){const e=this.editor,t=e.config.get('heading.options'),o=[];for(const n of t)n.model!==jk&&(e.model.schema.register(n.model,{inheritAllFrom:'$block'}),e.conversion.elementToElement(n),o.push(n.model));e.commands.add('heading',new zk(e,o))}afterInit(){const e=this.editor,t=e.commands.get('enter'),o=e.config.get('heading.options');t&&this.listenTo(t,'afterExecute',(t,n)=>{const i=e.model.document.selection.getFirstPosition().parent,r=o.some((e)=>i.is(e.model));r&&!i.is(jk)&&0===i.childCount&&n.writer.rename(i,jk)})}}class Wk{constructor(e,t){t&&Rc(this,t),e&&this.set(e)}}f(Wk,Mc);class Uk extends Bf{constructor(e){super(e);const t=this.bindTemplate;this.set('isVisible',!1),this.children=this.createCollection(),this.setTemplate({tag:'div',attributes:{class:['ck','ck-reset','ck-dropdown__panel',t.if('isVisible','ck-dropdown__panel-visible')]},children:this.children,on:{selectstart:t.to((e)=>e.preventDefault())}})}focus(){this.children.length&&this.children.first.focus()}focusLast(){if(this.children.length){const e=this.children.last;'function'==typeof e.focusLast?e.focusLast():e.focus()}}}var Hk=o(54),Kk=o.n(Hk);class Gk extends Bf{constructor(e,t,o){super(e);const n=this.bindTemplate;this.buttonView=t,this.panelView=o,this.set('isOpen',!1),this.set('isEnabled',!0),this.focusTracker=new Ef,this.keystrokes=new wf,this.setTemplate({tag:'div',attributes:{class:['ck','ck-dropdown',n.if('isEnabled','ck-disabled',(e)=>!e)]},children:[t,o]}),t.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 e=(e,t)=>{this.isOpen&&(this.buttonView.focus(),this.isOpen=!1,t())};this.keystrokes.set('arrowdown',(e,t)=>{this.buttonView.isEnabled&&!this.isOpen&&(this.isOpen=!0,t())}),this.keystrokes.set('arrowright',(e,t)=>{this.isOpen&&t()}),this.keystrokes.set('arrowleft',e),this.keystrokes.set('esc',e)}focus(){this.buttonView.focus()}}var $k=o(56),Jk=o.n($k);class Qk extends zh{constructor(e){super(e),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 e=new Fh;return e.content=Jk.a,e.extendTemplate({attributes:{class:'ck-dropdown__arrow'}}),e}}var Yk=o(57),Xk=o.n(Yk);class Zk extends Bf{constructor(){super(),this.items=this.createCollection(),this.focusTracker=new Ef,this.keystrokes=new wf,this._focusCycler=new Xf({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 e of this.items)this.focusTracker.add(e.element);this.items.on('add',(e,t)=>{this.focusTracker.add(t.element)}),this.items.on('remove',(e,t)=>{this.focusTracker.remove(t.element)}),this.keystrokes.listenTo(this.element)}focus(){this._focusCycler.focusFirst()}focusLast(){this._focusCycler.focusLast()}}class e_ extends Bf{constructor(){super(),this.set('tabindex',-1),this.keystrokes=new wf;const e=this.bindTemplate;this.setTemplate({tag:'li',attributes:{class:['ck','ck-list__item',e.to('class'),e.if('isActive','ck-list__item_active'),e.if('isEnabled','ck-disabled',(e)=>!e)],style:e.to('style'),tabindex:e.to('tabindex')},children:[{text:e.to('label')}],on:{click:e.to((e)=>{this.isEnabled?this.fire('execute'):e.preventDefault()})}}),this.set('isEnabled',!0)}render(){super.render();const e=(e,t)=>{this.fire('execute'),t()};this.keystrokes.listenTo(this.element),this.keystrokes.set('Enter',e),this.keystrokes.set('Space',e)}focus(){this.element.focus()}}class t_ extends Bf{constructor(e){super(e),this.setTemplate({tag:'li',attributes:{class:['ck','ck-list__separator']}})}}var o_=o(59),n_=o.n(o_),i_=o(61),r_=o.n(i_),a_=o(5),s_=o.n(a_);class l_ extends lh{init(){const e=this.editor,o=e.t,t=oa(e),n=o('e'),i=o('f');e.ui.componentFactory.add('heading',(o)=>{const r={},a=new Gc,s=e.commands.get('heading'),l=e.commands.get('paragraph'),d=[s];for(const e of t){const t=new Wk({label:e.title,class:e.class});'paragraph'===e.model?(t.bind('isActive').to(l,'value'),t.set('commandName','paragraph'),d.push(l)):(t.bind('isActive').to(s,'value',(t)=>t===e.model),t.set({commandName:'heading',commandValue:e.model})),a.add(t),r[e.model]=e.title}const c=Qr(o);return Yr(c,a),c.buttonView.set({isOn:!1,withText:!0,tooltip:i}),c.extendTemplate({attributes:{class:['ck-heading-dropdown']}}),c.bind('isEnabled').toMany(d,'isEnabled',(...e)=>e.some((e)=>e)),c.buttonView.bind('label').to(s,'value',l,'value',(e,t)=>{const o=e||t&&'paragraph';return r[o]?r[o]:n}),this.listenTo(c,'execute',(t)=>{e.execute(t.source.commandName,t.source.commandValue?{value:t.source.commandValue}:void 0),e.editing.view.focus()}),c})}}class d_ extends lh{static get requires(){return[qk,l_]}static get pluginName(){return'Heading'}}var c_=o(64),m_=o.n(c_);const u_=new WeakMap,p_=Symbol('imageCaption');class g_ extends lh{init(){const e=this.editor,o=e.editing.view,n=e.model.schema,i=e.data,r=e.editing,a=e.t;n.register('caption',{allowIn:'image',allowContentOf:'$block',isLimit:!0}),e.model.document.registerPostFixer((e)=>this._insertMissingModelCaptionElement(e)),e.conversion.for('upcast').add(io({view:la,model:'caption'}));i.downcastDispatcher.on('insert:caption',da((e)=>e.createContainerElement('figcaption'),!1));const t=aa(o,a('h'));r.downcastDispatcher.on('insert:caption',da(t)),r.downcastDispatcher.on('insert',this._fixCaptionVisibility((e)=>e.item),{priority:'high'}),r.downcastDispatcher.on('remove',this._fixCaptionVisibility((e)=>e.position.parent),{priority:'high'}),o.document.registerPostFixer((e)=>this._updateCaptionVisibility(e))}_updateCaptionVisibility(e){const t=this.editor.editing.mapper,o=this._lastSelectedCaption;let n;const i=this.editor.model.document.selection,r=i.getSelectedElement();if(r&&r.is('image')){const e=sa(r);n=t.toViewElement(e)}const a=i.getFirstPosition(),s=ma(a.parent);if(s&&(n=t.toViewElement(s)),n)return o?o===n?pa(n,e):(ua(o,e),this._lastSelectedCaption=n,pa(n,e)):(this._lastSelectedCaption=n,pa(n,e));if(o){const t=ua(o,e);return this._lastSelectedCaption=null,t}return!1}_fixCaptionVisibility(e){return(t,o,n)=>{const i=e(o),r=ma(i),a=this.editor.editing.mapper,s=n.writer;if(r){const e=a.toViewElement(r);e&&(r.childCount?s.removeClass('ck-hidden',e):s.addClass('ck-hidden',e))}}}_insertMissingModelCaptionElement(e){const t=this.editor.model,o=t.document.differ.getChanges();for(const t of o)if('insert'==t.type&&'image'==t.name){const o=t.position.nodeAfter;if(!sa(o))return e.appendElement('caption',o),!0}}}var f_=o(66),h_=o.n(f_);class b_ extends lh{static get requires(){return[g_]}static get pluginName(){return'ImageCaption'}}class k_ extends ph{constructor(e,t){super(e),this._defaultStyle=!1,this.styles=t.reduce((e,t)=>(e[t.name]=t,t.isDefault&&(this._defaultStyle=t.name),e),{})}refresh(){const e=this.editor.model.document.selection.getSelectedElement();if(this.isEnabled=br(e),!e)this.value=!1;else if(e.hasAttribute('imageStyle')){const t=e.getAttribute('imageStyle');this.value=!!this.styles[t]&&t}else this.value=this._defaultStyle}execute(e){const t=e.value,o=this.editor.model,n=o.document.selection.getSelectedElement();o.change((e)=>{this.styles[t].isDefault?e.removeAttribute('imageStyle',n):e.setAttribute('imageStyle',t,n)})}}var __=o(68),w_=o.n(__),v_=o(69),y_=o.n(v_),x_=o(70),C_=o.n(x_),A_=o(71),T_=o.n(A_);const P_={full:{name:'full',title:'Full size image',icon:w_.a,isDefault:!0},side:{name:'side',title:'Side image',icon:T_.a,className:'image-style-side'},alignLeft:{name:'alignLeft',title:'Left aligned image',icon:y_.a,className:'image-style-align-left'},alignCenter:{name:'alignCenter',title:'Centered image',icon:C_.a,className:'image-style-align-center'},alignRight:{name:'alignRight',title:'Right aligned image',icon:T_.a,className:'image-style-align-right'}},E_={full:w_.a,left:y_.a,right:T_.a,center:C_.a};class S_ extends lh{static get requires(){return[qb]}static get pluginName(){return'ImageStyleEditing'}init(){const e=this.editor,t=e.model.schema,o=e.data,n=e.editing;e.config.define('image.styles',['full','side']);const i=ba(e.config.get('image.styles'));t.extend('image',{allowAttributes:'imageStyle'});const r=ga(i);n.downcastDispatcher.on('attribute:imageStyle:image',r),o.downcastDispatcher.on('attribute:imageStyle:image',r),o.upcastDispatcher.on('element:figure',fa(i),{priority:'low'}),e.commands.add('imageStyle',new k_(e,i))}}var O_=o(72),I_=o.n(O_);class R_ extends lh{get localizedDefaultStylesTitles(){const e=this.editor.t;return{"Full size image":e('i'),"Side image":e('j'),"Left aligned image":e('k'),"Centered image":e('l'),"Right aligned image":e('m')}}init(){const e=this.editor,t=e.config.get('image.styles'),o=_a(ba(t),this.localizedDefaultStylesTitles);for(const e of o)this._createButton(e)}_createButton(e){const t=this.editor,o=`imageStyle:${e.name}`;t.ui.componentFactory.add(o,(o)=>{const n=t.commands.get('imageStyle'),i=new zh(o);return i.set({label:e.title,icon:e.icon,tooltip:!0}),i.bind('isEnabled').to(n,'isEnabled'),i.bind('isOn').to(n,'value',(t)=>t===e.name),this.listenTo(i,'execute',()=>t.execute('imageStyle',{value:e.name})),i})}}class V_ extends lh{static get requires(){return[S_,R_]}static get pluginName(){return'ImageStyle'}}class F_ extends lh{static get requires(){return[uk]}static get pluginName(){return'ImageToolbar'}init(){const e=this.editor,t=e.plugins.get('BalloonToolbar');t&&this.listenTo(t,'show',(t)=>{hr(e.editing.view.document.selection)&&t.stop()},{priority:'high'})}afterInit(){const e=this.editor,t=e.config.get('image.toolbar');t&&t.length&&(this._balloon=this.editor.plugins.get('ContextualBalloon'),this._toolbar=new oh,this._toolbar.fillFromConfig(t,e.ui.componentFactory),this.listenTo(e.editing.view,'render',()=>{this._checkIsVisible()}),this.listenTo(e.ui.focusTracker,'change:isFocused',()=>{this._checkIsVisible()},{priority:'low'}))}_checkIsVisible(){const e=this.editor;e.ui.focusTracker.isFocused?hr(e.editing.view.document.selection)?this._showToolbar():this._hideToolbar():this._hideToolbar()}_showToolbar(){const e=this.editor;this._isVisible?Rr(e):!this._balloon.hasView(this._toolbar)&&this._balloon.add({view:this._toolbar,position:Vr(e),balloonClassName:'ck-toolbar-container'})}_hideToolbar(){this._isVisible&&this._balloon.remove(this._toolbar)}get _isVisible(){return this._balloon.visibleView==this._toolbar}}class N_ extends ph{refresh(){const e=this.editor.model,t=e.document;this.value=t.selection.getAttribute('linkHref'),this.isEnabled=e.schema.checkAttributeInSelection(t.selection,'linkHref')}execute(e){const t=this.editor.model,o=t.document.selection;t.change((n)=>{if(o.isCollapsed){const t=o.getFirstPosition();if(o.hasAttribute('linkHref')){const t=wa(o.getFirstPosition(),o.getAttribute('linkHref'));n.setAttribute('linkHref',e,t),n.setSelection(t)}else if(''!==e){const i=ut(o.getAttributes());i.set('linkHref',e);const r=n.createText(e,i);n.insert(r,t),n.setSelection(pu.createOn(r))}}else{const i=t.schema.getValidRanges(o.getRanges(),'linkHref');for(const t of i)n.setAttribute('linkHref',e,t)}})}}class D_ extends ph{refresh(){this.isEnabled=this.editor.model.document.selection.hasAttribute('linkHref')}execute(){const e=this.editor.model,t=e.document.selection;e.change((e)=>{const o=t.isCollapsed?[wa(t.getFirstPosition(),t.getAttribute('linkHref'))]:t.getRanges();for(const t of o)e.removeAttribute('linkHref',t)})}}const M_=Symbol('linkElement'),B_=/[\u0000-\u0020\u00A0\u1680\u180E\u2000-\u2029\u205f\u3000]/g,L_=/^(?:(?:https?|ftps?|mailto):|[^a-z]|[a-z+.-]+(?:[^a-z+.:-]|$))/i;class z_{constructor(e,t,o){this.model=e,this.attribute=o,this._modelSelection=e.document.selection,this._overrideUid=null,this._isNextGravityRestorationSkipped=!1,t.listenTo(this._modelSelection,'change:range',(e,t)=>this._isNextGravityRestorationSkipped?void(this._isNextGravityRestorationSkipped=!1):void(!this._isGravityOverridden||!t.directChange&&Pa(this._modelSelection.getFirstPosition(),o)||this._restoreGravity()))}handleForwardMovement(e,t){const o=this.attribute;return this._isGravityOverridden||e.isAtStart&&this._hasSelectionAttribute?void 0:Oa(e,o)&&this._hasSelectionAttribute?(this._preventCaretMovement(t),this._removeSelectionAttribute(),!0):Ea(e,o)?(this._preventCaretMovement(t),this._overrideGravity(),!0):Sa(e,o)&&this._hasSelectionAttribute?(this._preventCaretMovement(t),this._overrideGravity(),!0):void 0}handleBackwardMovement(e,t){const o=this.attribute;if(this._isGravityOverridden)return Oa(e,o)&&this._hasSelectionAttribute?(this._preventCaretMovement(t),this._restoreGravity(),this._removeSelectionAttribute(),!0):(this._preventCaretMovement(t),this._restoreGravity(),e.isAtStart&&this._removeSelectionAttribute(),!0);return Oa(e,o)&&!this._hasSelectionAttribute?(this._preventCaretMovement(t),this._setSelectionAttributeFromTheNodeBefore(e),!0):e.isAtEnd&&Sa(e,o)?this._hasSelectionAttribute?void(Ia(e,o)&&(this._skipNextAutomaticGravityRestoration(),this._overrideGravity())):(this._preventCaretMovement(t),this._setSelectionAttributeFromTheNodeBefore(e),!0):e.isAtStart?this._hasSelectionAttribute?(this._removeSelectionAttribute(),this._preventCaretMovement(t),!0):void 0:void(Ia(e,o)&&(this._skipNextAutomaticGravityRestoration(),this._overrideGravity()))}get _isGravityOverridden(){return!!this._overrideUid}get _hasSelectionAttribute(){return this._modelSelection.hasAttribute(this.attribute)}_overrideGravity(){this._overrideUid=this.model.change((e)=>e.overrideSelectionGravity())}_restoreGravity(){this.model.change((e)=>{e.restoreSelectionGravity(this._overrideUid),this._overrideUid=null})}_preventCaretMovement(e){e.preventDefault()}_removeSelectionAttribute(){this.model.change((e)=>{e.removeSelectionAttribute(this.attribute)})}_setSelectionAttributeFromTheNodeBefore(e){const t=this.attribute;this.model.change((o)=>{o.setSelectionAttribute(this.attribute,e.nodeBefore.getAttribute(t))})}_skipNextAutomaticGravityRestoration(){this._isNextGravityRestorationSkipped=!0}}var j_=o(74),q_=o.n(j_);const W_='ck-link_selected';class U_ extends lh{init(){const e=this.editor;e.model.schema.extend('$text',{allowAttributes:'linkHref'}),e.conversion.for('dataDowncast').add(Ct({model:'linkHref',view:xa})),e.conversion.for('editingDowncast').add(Ct({model:'linkHref',view:(e,t)=>xa(Ca(e),t)})),e.conversion.for('upcast').add(ro({view:{name:'a',attributes:{href:!0}},model:{key:'linkHref',value:(e)=>e.getAttribute('href')}})),e.commands.add('link',new N_(e)),e.commands.add('unlink',new D_(e)),Ta(e.editing.view,e.model,this,'linkHref'),this._setupLinkHighlight()}_setupLinkHighlight(){const e=this.editor,t=e.editing.view,o=new Set;t.document.registerPostFixer((t)=>{const n=e.model.document.selection;if(n.hasAttribute('linkHref')){const i=wa(n.getFirstPosition(),n.getAttribute('linkHref')),r=e.editing.mapper.toViewRange(i);for(const e of r.getItems())e.is('a')&&(t.addClass(W_,e),o.add(e))}}),e.conversion.for('editingDowncast').add((e)=>{function n(){t.change((e)=>{for(const t of o.values())e.removeClass(W_,t),o.delete(t)})}e.on('insert',n,{priority:'highest'}),e.on('remove',n,{priority:'highest'}),e.on('attribute',n,{priority:'highest'}),e.on('selection',n,{priority:'highest'})})}}class H_ extends qm{constructor(e){super(e),this.domEventType='click'}onDomEvent(e){this.fire(e.type,e)}}var K_=o(76),G_=o.n(K_);class $_ extends Bf{constructor(e){super(e);const o=e.t;this.focusTracker=new Ef,this.keystrokes=new wf,this.urlInputView=this._createUrlInput(),this.saveButtonView=this._createButton(o('ab'),tk.a,'ck-button-save'),this.saveButtonView.type='submit',this.cancelButtonView=this._createButton(o('ac'),nk.a,'ck-button-cancel','cancel'),this._focusables=new Of,this._focusCycler=new Xf({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(),xr({view:this});const e=[this.urlInputView,this.saveButtonView,this.cancelButtonView];e.forEach((e)=>{this._focusables.add(e),this.focusTracker.add(e.element)}),this.keystrokes.listenTo(this.element)}focus(){this._focusCycler.focusFirst()}_createUrlInput(){const e=this.locale.t,t=new Qb(this.locale,Zb);return t.label=e('ad'),t.inputView.placeholder='https://example.com',t}_createButton(e,t,o,n){const i=new zh(this.locale);return i.set({label:e,icon:t,tooltip:!0}),i.extendTemplate({attributes:{class:o}}),n&&i.delegate('execute').to(this,n),i}}var J_=o(78),Q_=o.n(J_),Y_=o(79),X_=o.n(Y_),Z_=o(80),ew=o.n(Z_);class tw extends Bf{constructor(e){super(e);const o=e.t;this.focusTracker=new Ef,this.keystrokes=new wf,this.previewButtonView=this._createPreviewButton(),this.unlinkButtonView=this._createButton(o('x'),Q_.a,'unlink'),this.editButtonView=this._createButton(o('y'),X_.a,'edit'),this.set('href'),this._focusables=new Of,this._focusCycler=new Xf({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();const e=[this.previewButtonView,this.editButtonView,this.unlinkButtonView];e.forEach((e)=>{this._focusables.add(e),this.focusTracker.add(e.element)}),this.keystrokes.listenTo(this.element)}focus(){this._focusCycler.focusFirst()}_createButton(e,t,o){const n=new zh(this.locale);return n.set({label:e,icon:t,tooltip:!0}),n.delegate('execute').to(this,o),n}_createPreviewButton(){const e=new zh(this.locale),o=this.bindTemplate,n=this.t;return e.set({withText:!0,tooltip:n('z')}),e.extendTemplate({attributes:{class:['ck','ck-link-actions__preview'],href:o.to('href',(e)=>e&&Ca(e)),target:'_blank'}}),e.bind('label').to(this,'href',(e)=>e||n('aa')),e.bind('isEnabled').to(this,'href',(e)=>!!e),e.template.tag='a',e.template.eventListeners={},e}}var ow=o(82),nw=o.n(ow);const iw='Ctrl+K';class rw extends lh{static get requires(){return[uk]}init(){const e=this.editor;e.editing.view.addObserver(H_),this.actionsView=this._createActionsView(),this.formView=this._createFormView(),this._balloon=e.plugins.get(uk),this._createToolbarLinkButton(),this._enableUserBalloonInteractions()}_createActionsView(){const e=this.editor,t=new tw(e.locale),o=e.commands.get('link'),n=e.commands.get('unlink');return t.bind('href').to(o,'value'),t.editButtonView.bind('isEnabled').to(o),t.unlinkButtonView.bind('isEnabled').to(n),this.listenTo(t,'edit',()=>{this._addFormView()}),this.listenTo(t,'unlink',()=>{e.execute('unlink'),this._hideUI()}),t.keystrokes.set('Esc',(e,t)=>{this._hideUI(),t()}),t.keystrokes.set(iw,(e,t)=>{this._addFormView(),t()}),t}_createFormView(){const e=this.editor,t=new $_(e.locale),o=e.commands.get('link');return t.urlInputView.bind('value').to(o,'value'),t.urlInputView.bind('isReadOnly').to(o,'isEnabled',(e)=>!e),t.saveButtonView.bind('isEnabled').to(o),this.listenTo(t,'submit',()=>{e.execute('link',t.urlInputView.inputView.element.value),this._removeFormView()}),this.listenTo(t,'cancel',()=>{this._removeFormView()}),t.keystrokes.set('Esc',(e,t)=>{this._removeFormView(),t()}),t}_createToolbarLinkButton(){const e=this.editor,o=e.commands.get('link'),n=e.t;e.keystrokes.set(iw,(e,t)=>{t(),o.isEnabled&&this._showUI()}),e.ui.componentFactory.add('link',(e)=>{const t=new zh(e);return t.isEnabled=!0,t.label=n('p'),t.icon=nw.a,t.keystroke=iw,t.tooltip=!0,t.bind('isEnabled').to(o,'isEnabled'),this.listenTo(t,'execute',()=>this._showUI()),t})}_enableUserBalloonInteractions(){const e=this.editor.editing.view.document;this.listenTo(e,'click',()=>{const e=this._getSelectedLinkElement();e&&this._showUI()}),this.editor.keystrokes.set('Tab',(e,t)=>{this._areActionsVisible&&!this.actionsView.focusTracker.isFocused&&(this.actionsView.focus(),t())},{priority:'high'}),this.editor.keystrokes.set('Esc',(e,t)=>{this._isUIVisible&&(this._hideUI(),t())}),yr({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){const e=this.editor,t=e.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(){const e=this.editor,t=e.commands.get('link');t.isEnabled&&(this._getSelectedLinkElement()?this._areActionsVisible?this._addFormView():this._addActionsView():(this._addActionsView(),this._addFormView()),this._startUpdatingUIOnViewRender())}_hideUI(){if(this._isUIInPanel){const e=this.editor.editing.view;this.stopListening(e,'render'),this._removeFormView(),this._balloon.remove(this.actionsView),e.focus()}}_startUpdatingUIOnViewRender(){function e(){return n.document.selection.focus.getAncestors().reverse().find((e)=>e.is('element'))}const t=this.editor,o=t.editing,n=o.view;let i=this._getSelectedLinkElement(),r=e();this.listenTo(n,'render',()=>{const t=this._getSelectedLinkElement(),o=e();(!i||t)&&(i||o===r)?this._balloon.updatePosition(this._getBalloonPositionData()):this._hideUI(),i=t,r=o})}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(){const e=this._balloon.visibleView;return e==this.formView||this._areActionsVisible}_getBalloonPositionData(){const e=this.editor.editing.view,t=e.document,o=this._getSelectedLinkElement(),n=o?e.domConverter.mapViewToDom(o):e.domConverter.viewRangeToDom(t.selection.getFirstRange());return{target:n}}_getSelectedLinkElement(){const e=this.editor.editing.view.document.selection;if(e.isCollapsed)return Ra(e.getFirstPosition());else{const t=e.getFirstRange().getTrimmed(),o=Ra(t.start),n=Ra(t.end);return o&&o==n?Uc.createIn(o).getTrimmed().isEqual(t)?o:null:null}}}class aw extends lh{static get requires(){return[U_,rw]}static get pluginName(){return'Link'}}class sw extends ph{constructor(e,t){super(e),this.type='bulleted'==t?'bulleted':'numbered'}refresh(){this.value=this._getValue(),this.isEnabled=this._checkEnabled()}execute(){const e=this.editor.model,t=e.document,o=Array.from(t.selection.getSelectedBlocks()).filter((t)=>Fa(t,e.schema)),n=!0===this.value;e.change((e)=>{if(n){let t=o[o.length-1].nextSibling,n=ns,i=[];for(;t&&'listItem'==t.name&&0!==t.getAttribute('listIndent');){const e=t.getAttribute('listIndent');e<n&&(n=e);const o=e-n;i.push({element:t,listIndent:o}),t=t.nextSibling}i=i.reverse();for(const t of i)e.setAttribute('listIndent',t.listIndent,t.element)}if(!n){let e=ns;for(const t of o)t.is('listItem')&&t.getAttribute('listIndent')<e&&(e=t.getAttribute('listIndent'));e=0===e?1:e,Va(o,!0,e),Va(o,!1,e)}for(const t of o.reverse())n&&'listItem'==t.name?e.rename(t,'paragraph'):n||'listItem'==t.name?n||'listItem'!=t.name||t.getAttribute('listType')==this.type||e.setAttribute('listType',this.type,t):(e.setAttributes({listType:this.type,listIndent:0},t),e.rename(t,'listItem'))})}_getValue(){const e=Ji(this.editor.model.document.selection.getSelectedBlocks());return!!e&&e.is('listItem')&&e.getAttribute('listType')==this.type}_checkEnabled(){if(this.value)return!0;const e=this.editor.model.document.selection,t=this.editor.model.schema,o=Ji(e.getSelectedBlocks());return!!o&&Fa(o,t)}}class lw extends ph{constructor(e,t){super(e),this._indentBy='forward'==t?1:-1}refresh(){this.isEnabled=this._checkEnabled()}execute(){const e=this.editor.model,t=e.document;let o=Array.from(t.selection.getSelectedBlocks());e.change((e)=>{const t=o[o.length-1];for(let n=t.nextSibling;n&&'listItem'==n.name&&n.getAttribute('listIndent')>t.getAttribute('listIndent');)o.push(n),n=n.nextSibling;0>this._indentBy&&(o=o.reverse());for(const t of o){const o=t.getAttribute('listIndent')+this._indentBy;0>o?e.rename(t,'paragraph'):e.setAttribute('listIndent',o,t)}})}_checkEnabled(){const e=Ji(this.editor.model.document.selection.getSelectedBlocks());if(!e||!e.is('listItem'))return!1;if(0<this._indentBy){const t=e.getAttribute('listIndent'),o=e.getAttribute('listType');for(let n=e.previousSibling;n&&n.is('listItem')&&n.getAttribute('listIndent')>=t;){if(n.getAttribute('listIndent')==t)return n.getAttribute('listType')==o;n=n.previousSibling}return!1}return!0}}class dw extends lh{static get requires(){return[Lk]}init(){const e=this.editor;e.model.schema.register('listItem',{inheritAllFrom:'$block',allowAttributes:['listType','listIndent']});const t=e.data,o=e.editing;e.model.document.registerPostFixer((t)=>$a(e.model,t)),o.mapper.registerViewToModelLength('li',os),t.mapper.registerViewToModelLength('li',os),o.mapper.on('modelToViewPosition',Ka),o.mapper.on('viewToModelPosition',Ga),t.mapper.on('modelToViewPosition',Ka),o.downcastDispatcher.on('insert',ja,{priority:'high'}),o.downcastDispatcher.on('insert:listItem',Ma),t.downcastDispatcher.on('insert',ja,{priority:'high'}),t.downcastDispatcher.on('insert:listItem',Ma),o.downcastDispatcher.on('attribute:listType:listItem',La),t.downcastDispatcher.on('attribute:listType:listItem',La),o.downcastDispatcher.on('attribute:listIndent:listItem',za),t.downcastDispatcher.on('attribute:listIndent:listItem',za),o.downcastDispatcher.on('remove:listItem',Ba),o.downcastDispatcher.on('remove',qa,{priority:'low'}),t.downcastDispatcher.on('remove:listItem',Ba),t.downcastDispatcher.on('remove',qa,{priority:'low'}),t.upcastDispatcher.on('element:ul',Ua,{priority:'high'}),t.upcastDispatcher.on('element:ol',Ua,{priority:'high'}),t.upcastDispatcher.on('element:li',Ha,{priority:'high'}),t.upcastDispatcher.on('element:li',Wa),e.model.on('insertContent',Ja,{priority:'high'}),e.commands.add('numberedList',new sw(e,'numbered')),e.commands.add('bulletedList',new sw(e,'bulleted')),e.commands.add('indentList',new lw(e,'forward')),e.commands.add('outdentList',new lw(e,'backward'));const n=this.editor.editing.view.document;this.listenTo(n,'enter',(e,t)=>{const o=this.editor.model.document,n=o.selection.getLastPosition().parent;o.selection.isCollapsed&&'listItem'==n.name&&n.isEmpty&&(this.editor.execute('outdentList'),t.preventDefault(),e.stop())}),this.listenTo(n,'delete',(e,t)=>{if('backward'===t.direction){const o=this.editor.model.document.selection;if(o.isCollapsed){const n=o.getFirstPosition();if(n.isAtStart){const o=n.parent;if('listItem'===o.name){const n=o.previousSibling&&'listItem'===o.previousSibling.name;n||(this.editor.execute('outdentList'),t.preventDefault(),e.stop())}}}}},{priority:'high'});const i=(e)=>(t,o)=>{const n=this.editor.commands.get(e);n.isEnabled&&(this.editor.execute(e),o())};this.editor.keystrokes.set('Tab',i('indentList')),this.editor.keystrokes.set('Shift+Tab',i('outdentList'))}}var cw=o(83),mw=o.n(cw),uw=o(84),pw=o.n(uw);class gw extends lh{init(){const e=this.editor.t;this._addButton('numberedList',e('q'),mw.a),this._addButton('bulletedList',e('r'),pw.a)}_addButton(e,t,o){const n=this.editor;n.ui.componentFactory.add(e,(i)=>{const r=n.commands.get(e),a=new zh(i);return a.set({label:t,icon:o,tooltip:!0}),a.bind('isOn','isEnabled').to(r,'value','isEnabled'),this.listenTo(a,'execute',()=>n.execute(e)),a})}}class fw extends lh{static get requires(){return[dw,gw]}static get pluginName(){return'List'}}class hw extends sh{}t['default']=hw,hw.build={plugins:[Gh,tb,rb,pb,wb,Eb,Mk,d_,_k,b_,V_,F_,Dk,aw,fw,Lk],config:{toolbar:{items:['heading','|','bold','italic','link','bulletedList','numberedList','imageUpload','blockQuote','undo','redo']},image:{toolbar:['imageStyle:full','imageStyle:side','|','imageTextAlternative']},language:'en'}}},function(e){var t=function(){return this}();try{t=t||Function('return this')()||(1,eval)('this')}catch(o){'object'==typeof window&&(t=window)}e.exports=t},function(e,t){'use strict';t.a=function(e){return e&&e.Object===Object?e:null}},function(e,t,o){'use strict';(function(e){var n=o(10),i=o(1),r={function:!0,object:!0},a=r[typeof exports]&&exports&&!exports.nodeType?exports:void 0,s=r[typeof e]&&e&&!e.nodeType?e:void 0,l=s&&s.exports===a?a:void 0,d=l?i.a.Buffer:void 0,c=d?function(e){return e instanceof d}:Object(n.a)(!1);t.a=c}).call(t,o(2)(e))},function(e,t){'use strict';t.a=function(e){return function(){return e}}},function(e,t,o){var n=o(12);'string'==typeof n&&(n=[[e.i,n,'']]);var i={singleton:!0,hmr:!0},r;i.transform=r,i.insertInto=void 0;o(0)(n,i);n.locals&&(e.exports=n.locals),!1},function(e){e.exports='.ck-hidden{display:none!important}.ck.ck-reset,.ck.ck-reset_all,.ck.ck-reset_all *{box-sizing:border-box;width:auto;height:auto;position:static}:root{--ck-z-default:1;--ck-z-modal:999;--ck-color-base-foreground:#fafafa;--ck-color-base-background:#fff;--ck-color-base-border:#c4c4c4;--ck-color-base-action:#61b045;--ck-color-base-focus:#6cb5f9;--ck-color-base-text:#333;--ck-color-base-active:#198cf0;--ck-color-base-active-focus:#0e7fe1;--ck-color-focus-border:#47a4f5;--ck-color-focus-shadow:#77baf8;--ck-color-text:var(--ck-color-base-text);--ck-color-shadow-drop:rgba(0,0,0,.15);--ck-color-shadow-inner:rgba(0,0,0,.1);--ck-color-button-default-background:transparent;--ck-color-button-default-focus-background:#e6e6e6;--ck-color-button-default-active-background:#d9d9d9;--ck-color-button-default-active-shadow:#bfbfbf;--ck-color-button-default-disabled-background:transparent;--ck-color-button-on-background:#dedede;--ck-color-button-on-focus-background:#c4c4c4;--ck-color-button-on-active-background:#bababa;--ck-color-button-on-active-shadow:#a1a1a1;--ck-color-button-on-disabled-background:#dedede;--ck-color-button-action-background:var(--ck-color-base-action);--ck-color-button-action-focus-background:#579e3d;--ck-color-button-action-active-background:#53973b;--ck-color-button-action-active-shadow:#498433;--ck-color-button-action-disabled-background:#7ec365;--ck-color-button-action-text:var(--ck-color-base-background);--ck-color-button-save:#008a00;--ck-color-button-cancel:#db3700;--ck-color-dropdown-panel-background:var(--ck-color-base-background);--ck-color-dropdown-panel-border:var(--ck-color-base-border);--ck-color-input-background:var(--ck-color-base-background);--ck-color-input-border:#c7c7c7;--ck-color-input-text:var(--ck-color-base-text);--ck-color-input-disabled-background:#f2f2f2;--ck-color-input-disabled-border:#c7c7c7;--ck-color-input-disabled-text:#5c5c5c;--ck-color-list-background:var(--ck-color-base-background);--ck-color-list-item-background-hover:var(--ck-color-base-foreground);--ck-color-list-item-background-active:var(--ck-color-base-active);--ck-color-list-item-background-active-focus:var(--ck-color-base-active-focus);--ck-color-list-item-text-active:var(--ck-color-base-background);--ck-color-panel-background:var(--ck-color-base-background);--ck-color-panel-border:var(--ck-color-base-border);--ck-color-toolbar-background:var(--ck-color-base-foreground);--ck-color-toolbar-border:var(--ck-color-base-border);--ck-color-tooltip-background:var(--ck-color-base-text);--ck-color-tooltip-text:var(--ck-color-base-background);--ck-color-engine-placeholder-text:#c2c2c2;--ck-color-upload-bar-background:#6cb5f9;--ck-color-upload-infinite-background:rgba(0,0,0,.1);--ck-color-link-default:#0000f0;--ck-color-link-selected-background:#ebf8ff;--ck-disabled-opacity:.5;--ck-focus-outer-shadow:0 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