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var(--ck-spacing-small)}.ck.ck-link-form_layout-vertical .ck-labeled-field-view .ck-input-text{min-width:0;width:100%}.ck.ck-link-form_layout-vertical .ck-button{padding:var(--ck-spacing-standard);margin:0;border-radius:0;border:0;border-top:1px solid var(--ck-color-base-border);width:50%}[dir=ltr] .ck.ck-link-form_layout-vertical .ck-button{margin-left:0}[dir=ltr] .ck.ck-link-form_layout-vertical .ck-button:first-of-type{border-right:1px solid var(--ck-color-base-border)}[dir=rtl] .ck.ck-link-form_layout-vertical .ck-button{margin-left:0}[dir=rtl] .ck.ck-link-form_layout-vertical .ck-button:last-of-type{border-right:1px solid var(--ck-color-base-border)}.ck.ck-link-form_layout-vertical .ck.ck-list{margin-left:0}.ck.ck-link-form_layout-vertical .ck.ck-list .ck-button.ck-switchbutton{border:0;width:100%}.ck.ck-link-form_layout-vertical .ck.ck-list .ck-button.ck-switchbutton:hover{background:none}"},function(e,t,n){var 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var(--ck-spacing-medium);color:var(--ck-color-link-default);text-overflow:ellipsis;cursor:pointer;max-width:var(--ck-input-text-width);min-width:3em;text-align:center}.ck.ck-link-actions .ck-button.ck-link-actions__preview .ck-button__label:hover{text-decoration:underline}.ck.ck-link-actions .ck-button.ck-link-actions__preview,.ck.ck-link-actions .ck-button.ck-link-actions__preview:active,.ck.ck-link-actions .ck-button.ck-link-actions__preview:focus,.ck.ck-link-actions .ck-button.ck-link-actions__preview:hover{background:none}.ck.ck-link-actions .ck-button.ck-link-actions__preview:active{box-shadow:none}.ck.ck-link-actions .ck-button.ck-link-actions__preview:focus .ck-button__label{text-decoration:underline}.ck.ck-link-actions:focus{outline:none}[dir=ltr] .ck.ck-link-actions .ck-button:not(:first-child),[dir=rtl] .ck.ck-link-actions .ck-button:not(:last-child){margin-left:var(--ck-spacing-standard)}@media screen and (max-width:600px){.ck.ck-link-actions{padding:0;width:calc(0.8*var(--ck-input-text-width))}.ck.ck-link-actions .ck-button.ck-link-actions__preview{margin:var(--ck-spacing-standard) var(--ck-spacing-standard) 0}.ck.ck-link-actions .ck-button.ck-link-actions__preview .ck-button__label{min-width:0;max-width:100%}.ck.ck-link-actions .ck-button:not(.ck-link-actions__preview){padding:var(--ck-spacing-standard);margin-top:var(--ck-spacing-standard);border-radius:0;border:0;border-top:1px solid var(--ck-color-base-border)}[dir=ltr] .ck.ck-link-actions .ck-button:not(.ck-link-actions__preview){margin-left:0}[dir=ltr] .ck.ck-link-actions .ck-button:not(.ck-link-actions__preview):first-of-type{border-right:1px solid var(--ck-color-base-border)}[dir=rtl] .ck.ck-link-actions .ck-button:not(.ck-link-actions__preview){margin-left:0}[dir=rtl] .ck.ck-link-actions .ck-button:not(.ck-link-actions__preview):last-of-type{border-right:1px solid var(--ck-color-base-border)}}"},function(e,t,n){var o=n(1),i=n(89);"string"==typeof(i=i.__esModule?i.default:i)&&(i=[[e.i,i,""]]);var r={injectType:"singletonStyleTag",attributes:{"data-cke":!0},insert:"head",singleton:!0};o(i,r);e.exports=i.locals||{}},function(e,t){e.exports='.ck-media__wrapper .ck-media__placeholder{display:flex;flex-direction:column;align-items:center}.ck-media__wrapper .ck-media__placeholder .ck-media__placeholder__url .ck-tooltip{display:block}@media (hover:none){.ck-media__wrapper .ck-media__placeholder .ck-media__placeholder__url .ck-tooltip{display:none}}.ck-media__wrapper .ck-media__placeholder .ck-media__placeholder__url{max-width:100%;position:relative}.ck-media__wrapper .ck-media__placeholder .ck-media__placeholder__url:hover .ck-tooltip{visibility:visible;opacity:1}.ck-media__wrapper .ck-media__placeholder .ck-media__placeholder__url .ck-media__placeholder__url__text{overflow:hidden;display:block}.ck-media__wrapper[data-oembed-url*="facebook.com"] .ck-media__placeholder__icon 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t=this.position,n=e.parent;if(null===n.parent&&0===e.offset)return{done:!0};if(n==this._boundaryStartParent&&e.offset==this.boundaries.start.offset)return{done:!0};let o;if(n instanceof Rn){if(e.isAtStart)return this.position=Xo._createBefore(n),this._previous();o=n.data[e.offset-1]}else o=n.getChild(e.offset-1);if(o instanceof Ro)return this.shallow?(e.offset--,this.position=e,this._formatReturnValue("elementStart",o,t,e,1)):(e=new Xo(o,o.childCount),this.position=e,this.ignoreElementEnd?this._previous():this._formatReturnValue("elementEnd",o,t,e));if(o instanceof Rn){if(this.singleCharacters)return e=new Xo(o,o.data.length),this.position=e,this._previous();{let n,i=o.data.length;if(o==this._boundaryStartParent){const t=this.boundaries.start.offset;n=new Dn(o,t,o.data.length-t),i=n.data.length,e=Xo._createBefore(n)}else n=new Dn(o,0,o.data.length),e.offset--;return this.position=e,this._formatReturnValue("text",n,t,e,i)}}if("string"==typeof o){let o;if(this.singleCharacters)o=1;else{const t=n===this._boundaryStartParent?this.boundaries.start.offset:0;o=e.offset-t}e.offset-=o;const i=new Dn(n,e.offset,o);return this.position=e,this._formatReturnValue("text",i,t,e,o)}return e=Xo._createBefore(n),this.position=e,this._formatReturnValue("elementStart",n,t,e,1)}_formatReturnValue(e,t,n,o,i){return t instanceof Dn&&(t.offsetInText+t.data.length==t.textNode.data.length&&("forward"!=this.direction||this.boundaries&&this.boundaries.end.isEqual(this.position)?n=Xo._createAfter(t.textNode):(o=Xo._createAfter(t.textNode),this.position=o)),0===t.offsetInText&&("backward"!=this.direction||this.boundaries&&this.boundaries.start.isEqual(this.position)?n=Xo._createBefore(t.textNode):(o=Xo._createBefore(t.textNode),this.position=o))),{done:!1,value:{type:e,item:t,previousPosition:n,nextPosition:o,length:i}}}}class Xo{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("$text")?this.parent.data.length:this.parent.childCount;return this.offset===e}get root(){return this.parent.root}get editableElement(){let e=this.parent;for(;!(e instanceof Ko);){if(!e.parent)return null;e=e.parent}return e}getShiftedBy(e){const t=Xo._createAt(this),n=t.offset+e;return t.offset=n<0?0:n,t}getLastMatchingPosition(e,t={}){t.startPosition=this;const n=new Zo(t);return n.skip(e),n.position}getAncestors(){return this.parent.is("documentFragment")?[this.parent]:this.parent.getAncestors({includeSelf:!0})}getCommonAncestor(e){const t=this.getAncestors(),n=e.getAncestors();let o=0;for(;t[o]==n[o]&&t[o];)o++;return 0===o?null:t[o-1]}is(e){return"position"===e||"view:position"===e}isEqual(e){return this.parent==e.parent&&this.offset==e.offset}isBefore(e){return"before"==this.compareWith(e)}isAfter(e){return"after"==this.compareWith(e)}compareWith(e){if(this.root!==e.root)return"different";if(this.isEqual(e))return"same";const t=this.parent.is("node")?this.parent.getPath():[],n=e.parent.is("node")?e.parent.getPath():[];t.push(this.offset),n.push(e.offset);const o=In(t,n);switch(o){case"prefix":return"before";case"extension":return"after";default:return t[o]0?new this(n,o):new this(o,n)}static _createIn(e){return this._createFromParentsAndOffsets(e,0,e,e.childCount)}static _createOn(e){const t=e.is("$textProxy")?e.offsetSize:1;return this._createFromPositionAndShift(Xo._createBefore(e),t)}}function ti(e){return!(!e.item.is("attributeElement")&&!e.item.is("uiElement"))}function ni(e){let t=0;for(const n of e)t++;return t}class oi{constructor(e=null,t,n){this._ranges=[],this._lastRangeBackward=!1,this._isFake=!1,this._fakeSelectionLabel="",this.setTo(e,t,n)}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];return(this._lastRangeBackward?e.end:e.start).clone()}get focus(){if(!this._ranges.length)return null;const e=this._ranges[this._ranges.length-1];return(this._lastRangeBackward?e.start:e.end).clone()}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 e.clone()}getFirstRange(){let e=null;for(const t of this._ranges)e&&!t.start.isBefore(e.start)||(e=t);return e?e.clone():null}getLastRange(){let e=null;for(const t of this._ranges)e&&!t.end.isAfter(e.end)||(e=t);return e?e.clone():null}getFirstPosition(){const e=this.getFirstRange();return e?e.start.clone():null}getLastPosition(){const e=this.getLastRange();return e?e.end.clone():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 n=!1;for(const o of e._ranges)if(t.isEqual(o)){n=!0;break}if(!n)return!1}return!0}isSimilar(e){if(this.isBackward!=e.isBackward)return!1;const t=ni(this.getRanges());if(t!=ni(e.getRanges()))return!1;if(0==t)return!0;for(let t of this.getRanges()){t=t.getTrimmed();let n=!1;for(let o of e.getRanges())if(o=o.getTrimmed(),t.start.isEqual(o.start)&&t.end.isEqual(o.end)){n=!0;break}if(!n)return!1}return!0}getSelectedElement(){return 1!==this.rangeCount?null:this.getFirstRange().getContainedElement()}setTo(e,t,n){if(null===e)this._setRanges([]),this._setFakeOptions(t);else if(e instanceof oi||e instanceof ii)this._setRanges(e.getRanges(),e.isBackward),this._setFakeOptions({fake:e.isFake,label:e.fakeSelectionLabel});else if(e instanceof ei)this._setRanges([e],t&&t.backward),this._setFakeOptions(t);else if(e instanceof Xo)this._setRanges([new ei(e)]),this._setFakeOptions(t);else if(e instanceof On){const o=!!n&&!!n.backward;let i;if(void 0===t)throw new hn.b("view-selection-setTo-required-second-parameter: selection.setTo requires the second parameter when the first parameter is a node.",this);i="in"==t?ei._createIn(e):"on"==t?ei._createOn(e):new ei(Xo._createAt(e,t)),this._setRanges([i],o),this._setFakeOptions(n)}else{if(!yn(e))throw new hn.b("view-selection-setTo-not-selectable: Cannot set selection to given place.",this);this._setRanges(e,t&&t.backward),this._setFakeOptions(t)}this.fire("change")}setFocus(e,t){if(null===this.anchor)throw new hn.b("view-selection-setFocus-no-ranges: Cannot set selection focus if there are no ranges in selection.",this);const n=Xo._createAt(e,t);if("same"==n.compareWith(this.focus))return;const o=this.anchor;this._ranges.pop(),"before"==n.compareWith(o)?this._addRange(new ei(n,o),!0):this._addRange(new ei(o,n)),this.fire("change")}is(e){return"selection"===e||"view:selection"===e}_setRanges(e,t=!1){e=Array.from(e),this._ranges=[];for(const t of e)this._addRange(t);this._lastRangeBackward=!!t}_setFakeOptions(e={}){this._isFake=!!e.fake,this._fakeSelectionLabel=e.fake&&e.label||""}_addRange(e,t=!1){if(!(e instanceof ei))throw new hn.b("view-selection-add-range-not-range: Selection range set to an object that is not an instance of view.Range",this);this._pushRange(e),this._lastRangeBackward=!!t}_pushRange(e){for(const t of this._ranges)if(e.isIntersecting(t))throw new hn.b("view-selection-range-intersects: Trying to add a range that intersects with another range from selection.",this,{addedRange:e,intersectingRange:t});this._ranges.push(new ei(e.start,e.end))}}xn(oi,gn);class ii{constructor(e=null,t,n){this._selection=new oi,this._selection.delegate("change").to(this),this._selection.setTo(e,t,n)}get isFake(){return this._selection.isFake}get fakeSelectionLabel(){return this._selection.fakeSelectionLabel}get anchor(){return this._selection.anchor}get focus(){return this._selection.focus}get isCollapsed(){return this._selection.isCollapsed}get rangeCount(){return this._selection.rangeCount}get isBackward(){return this._selection.isBackward}get editableElement(){return this._selection.editableElement}get _ranges(){return this._selection._ranges}*getRanges(){yield*this._selection.getRanges()}getFirstRange(){return this._selection.getFirstRange()}getLastRange(){return this._selection.getLastRange()}getFirstPosition(){return this._selection.getFirstPosition()}getLastPosition(){return this._selection.getLastPosition()}getSelectedElement(){return this._selection.getSelectedElement()}isEqual(e){return this._selection.isEqual(e)}isSimilar(e){return this._selection.isSimilar(e)}is(e){return"selection"===e||"documentSelection"==e||"view:selection"==e||"view:documentSelection"==e}_setTo(e,t,n){this._selection.setTo(e,t,n)}_setFocus(e,t){this._selection.setFocus(e,t)}}xn(ii,gn);class ri{constructor(e){this.selection=new ii,this.roots=new An({idProperty:"rootName"}),this.stylesProcessor=e,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)}destroy(){this.roots.map(e=>e.destroy()),this.stopListening()}_callPostFixers(e){let t=!1;do{for(const n of this._postFixers)if(t=n(e),t)break}while(t)}}xn(ri,Ho);class si extends Ro{constructor(e,t,n,o){super(e,t,n,o),this.getFillerOffset=ai,this._priority=10,this._id=null,this._clonesGroup=null}get priority(){return this._priority}get id(){return this._id}getElementsWithSameId(){if(null===this.id)throw new hn.b("attribute-element-get-elements-with-same-id-no-id: Cannot get elements with the same id for an attribute element without id.",this);return new Set(this._clonesGroup)}is(e,t=null){return t?t===this.name&&("attributeElement"===e||"view:attributeElement"===e||"element"===e||"view:element"===e):"attributeElement"===e||"view:attributeElement"===e||"element"===e||"view:element"===e||"node"===e||"view:node"===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}}function ai(){if(ci(this))return null;let e=this.parent;for(;e&&e.is("attributeElement");){if(ci(e)>1)return null;e=e.parent}return!e||ci(e)>1?null:this.childCount}function ci(e){return Array.from(e.getChildren()).filter(e=>!e.is("uiElement")).length}si.DEFAULT_PRIORITY=10;class li extends Ro{constructor(e,t,n,o){super(e,t,n,o),this.getFillerOffset=di}is(e,t=null){return t?t===this.name&&("emptyElement"===e||"view:emptyElement"===e||"element"===e||"view:element"===e):"emptyElement"===e||"view:emptyElement"===e||"element"===e||"view:element"===e||"node"===e||"view:node"===e}_insertChild(e,t){if(t&&(t instanceof On||Array.from(t).length>0))throw new hn.b("view-emptyelement-cannot-add: Cannot add child nodes to EmptyElement instance.",[this,t])}}function di(){return null}const ui=navigator.userAgent.toLowerCase();var hi={isMac:function(e){return e.indexOf("macintosh")>-1}(ui),isGecko:function(e){return!!e.match(/gecko\/\d+/)}(ui),isSafari:function(e){return e.indexOf(" applewebkit/")>-1&&-1===e.indexOf("chrome")}(ui),isAndroid:function(e){return e.indexOf("android")>-1}(ui),features:{isRegExpUnicodePropertySupported:function(){let e=!1;try{e=0==="ć".search(new RegExp("[\\p{L}]","u"))}catch(e){}return e}()}};const fi={"⌘":"ctrl","⇧":"shift","⌥":"alt"},mi={ctrl:"⌘",shift:"⇧",alt:"⌥"},gi=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;t<=90;t++){const n=String.fromCharCode(t);e[n.toLowerCase()]=t}for(let t=48;t<=57;t++)e[t-48]=t;for(let t=112;t<=123;t++)e["f"+(t-111)]=t;return e}();function pi(e){let t;if("string"==typeof e){if(t=gi[e.toLowerCase()],!t)throw new hn.b("keyboard-unknown-key: Unknown key name.",null,{key:e})}else t=e.keyCode+(e.altKey?gi.alt:0)+(e.ctrlKey?gi.ctrl:0)+(e.shiftKey?gi.shift:0);return t}function bi(e){return"string"==typeof e&&(e=yi(e)),e.map(e=>"string"==typeof e?pi(e):e).reduce((e,t)=>t+e,0)}function wi(e){return hi.isMac?yi(e).map(e=>mi[e.toLowerCase()]||e).reduce((e,t)=>e.slice(-1)in fi?e+t:e+"+"+t):e}function ki(e){return e==gi.arrowright||e==gi.arrowleft||e==gi.arrowup||e==gi.arrowdown}function _i(e,t){const n="ltr"===t;switch(e){case gi.arrowleft:return n?"left":"right";case gi.arrowright:return n?"right":"left";case gi.arrowup:return"up";case gi.arrowdown:return"down"}}function vi(e,t){const n=_i(e,t);return"down"===n||"right"===n}function yi(e){return e.split(/\s*\+\s*/)}class xi extends Ro{constructor(e,t,n,o){super(e,t,n,o),this.getFillerOffset=Ci}is(e,t=null){return t?t===this.name&&("uiElement"===e||"view:uiElement"===e||"element"===e||"view:element"===e):"uiElement"===e||"view:uiElement"===e||"element"===e||"view:element"===e||"node"===e||"view:node"===e}_insertChild(e,t){if(t&&(t instanceof On||Array.from(t).length>0))throw new hn.b("view-uielement-cannot-add: Cannot add child nodes to UIElement instance.",this)}render(e){return this.toDomElement(e)}toDomElement(e){const t=e.createElement(this.name);for(const e of this.getAttributeKeys())t.setAttribute(e,this.getAttribute(e));return t}}function Ai(e){e.document.on("keydown",(t,n)=>function(e,t,n){if(t.keyCode==gi.arrowright){const e=t.domTarget.ownerDocument.defaultView.getSelection(),o=1==e.rangeCount&&e.getRangeAt(0).collapsed;if(o||t.shiftKey){const t=e.focusNode,i=e.focusOffset,r=n.domPositionToView(t,i);if(null===r)return;let s=!1;const a=r.getLastMatchingPosition(e=>(e.item.is("uiElement")&&(s=!0),!(!e.item.is("uiElement")&&!e.item.is("attributeElement"))));if(s){const t=n.viewPositionToDom(a);o?e.collapse(t.parent,t.offset):e.extend(t.parent,t.offset)}}}}(0,n,e.domConverter))}function Ci(){return null}class Ti extends Ro{constructor(e,t,n,o){super(e,t,n,o),this.getFillerOffset=Pi}is(e,t=null){return t?t===this.name&&("rawElement"===e||"view:rawElement"===e||"element"===e||"view:element"===e):"rawElement"===e||"view:rawElement"===e||e===this.name||e==="view:"+this.name||"element"===e||"view:element"===e||"node"===e||"view:node"===e}_insertChild(e,t){if(t&&(t instanceof On||Array.from(t).length>0))throw new hn.b("view-rawelement-cannot-add: Cannot add child nodes to a RawElement instance.",[this,t])}}function Pi(){return null}class Si{constructor(e,t){this.document=e,this._children=[],t&&this._insertChild(0,t)}[Symbol.iterator](){return this._children[Symbol.iterator]()}get childCount(){return this._children.length}get isEmpty(){return 0===this.childCount}get root(){return this}get parent(){return null}is(e){return"documentFragment"===e||"view: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 n=0;const o=function(e,t){if("string"==typeof t)return[new Rn(e,t)];yn(t)||(t=[t]);return Array.from(t).map(t=>"string"==typeof t?new Rn(e,t):t instanceof Dn?new Rn(e,t.data):t)}(this.document,t);for(const t of o)null!==t.parent&&t._remove(),t.parent=this,this._children.splice(e,0,t),e++,n++;return n}_removeChildren(e,t=1){this._fireChange("children",this);for(let n=e;n{}),o}setAttribute(e,t,n){n._setAttribute(e,t)}removeAttribute(e,t){t._removeAttribute(e)}addClass(e,t){t._addClass(e)}removeClass(e,t){t._removeClass(e)}setStyle(e,t,n){y(e)&&void 0===n&&(n=t),n._setStyle(e,t)}removeStyle(e,t){t._removeStyle(e)}setCustomProperty(e,t,n){n._setCustomProperty(e,t)}removeCustomProperty(e,t){return t._removeCustomProperty(e)}breakAttributes(e){return e instanceof Xo?this._breakAttributes(e):this._breakAttributesRange(e)}breakContainer(e){const t=e.parent;if(!t.is("containerElement"))throw new hn.b("view-writer-break-non-container-element: Trying to break an element which is not a container element.",this.document);if(!t.parent)throw new hn.b("view-writer-break-root: Trying to break root element.",this.document);if(e.isAtStart)return Xo._createBefore(t);if(!e.isAtEnd){const n=t._clone(!1);this.insert(Xo._createAfter(t),n);const o=new ei(e,Xo._createAt(t,"end")),i=new Xo(n,0);this.move(o,i)}return Xo._createAfter(t)}mergeAttributes(e){const t=e.offset,n=e.parent;if(n.is("$text"))return e;if(n.is("attributeElement")&&0===n.childCount){const e=n.parent,t=n.index;return n._remove(),this._removeFromClonedElementsGroup(n),this.mergeAttributes(new Xo(e,t))}const o=n.getChild(t-1),i=n.getChild(t);if(!o||!i)return e;if(o.is("$text")&&i.is("$text"))return Ri(o,i);if(o.is("attributeElement")&&i.is("attributeElement")&&o.isSimilar(i)){const e=o.childCount;return o._appendChild(i.getChildren()),i._remove(),this._removeFromClonedElementsGroup(i),this.mergeAttributes(new Xo(o,e))}return e}mergeContainers(e){const t=e.nodeBefore,n=e.nodeAfter;if(!(t&&n&&t.is("containerElement")&&n.is("containerElement")))throw new hn.b("view-writer-merge-containers-invalid-position: Element before and after given position cannot be merged.",this.document);const o=t.getChild(t.childCount-1),i=o instanceof Rn?Xo._createAt(o,"end"):Xo._createAt(t,"end");return this.move(ei._createIn(n),Xo._createAt(t,"end")),this.remove(ei._createOn(n)),i}insert(e,t){(function e(t,n){for(const o of t){if(!Di.some(e=>o instanceof e))throw new hn.b("view-writer-insert-invalid-node-type: One of the nodes to be inserted is of invalid type.",n);o.is("$text")||e(o.getChildren(),n)}})(t=yn(t)?[...t]:[t],this.document);const n=Mi(e);if(!n)throw new hn.b("view-writer-invalid-position-container: Position's parent container cannot be found.",this.document);const o=this._breakAttributes(e,!0),i=n._insertChild(o.offset,t);for(const e of t)this._addToClonedElementsGroup(e);const r=o.getShiftedBy(i),s=this.mergeAttributes(o);if(0===i)return new ei(s,s);{s.isEqual(o)||r.offset--;const e=this.mergeAttributes(r);return new ei(s,e)}}remove(e){const t=e instanceof ei?e:ei._createOn(e);if(Vi(t,this.document),t.isCollapsed)return new Si(this.document);const{start:n,end:o}=this._breakAttributesRange(t,!0),i=n.parent,r=o.offset-n.offset,s=i._removeChildren(n.offset,r);for(const e of s)this._removeFromClonedElementsGroup(e);const a=this.mergeAttributes(n);return t.start=a,t.end=a.clone(),new Si(this.document,s)}clear(e,t){Vi(e,this.document);const n=e.getWalker({direction:"backward",ignoreElementEnd:!0});for(const o of n){const n=o.item;let i;if(n.is("element")&&t.isSimilar(n))i=ei._createOn(n);else if(!o.nextPosition.isAfter(e.start)&&n.is("$textProxy")){const e=n.getAncestors().find(e=>e.is("element")&&t.isSimilar(e));e&&(i=ei._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 n;if(t.isAfter(e.end)){const o=(t=this._breakAttributes(t,!0)).parent,i=o.childCount;e=this._breakAttributesRange(e,!0),n=this.remove(e),t.offset+=o.childCount-i}else n=this.remove(e);return this.insert(t,n)}wrap(e,t){if(!(t instanceof si))throw new hn.b("view-writer-wrap-invalid-attribute: DowncastWriter#wrap() must be called with an attribute element.",this.document);if(Vi(e,this.document),e.isCollapsed){let o=e.start;o.parent.is("element")&&(n=o.parent,!Array.from(n.getChildren()).some(e=>!e.is("uiElement")))&&(o=o.getLastMatchingPosition(e=>e.item.is("uiElement"))),o=this._wrapPosition(o,t);const i=this.document.selection;return i.isCollapsed&&i.getFirstPosition().isEqual(e.start)&&this.setSelection(o),new ei(o)}return this._wrapRange(e,t);var n}unwrap(e,t){if(!(t instanceof si))throw new hn.b("view-writer-unwrap-invalid-attribute: DowncastWriter#unwrap() must be called with an attribute element.",this.document);if(Vi(e,this.document),e.isCollapsed)return e;const{start:n,end:o}=this._breakAttributesRange(e,!0),i=n.parent,r=this._unwrapChildren(i,n.offset,o.offset,t),s=this.mergeAttributes(r.start);s.isEqual(r.start)||r.end.offset--;const a=this.mergeAttributes(r.end);return new ei(s,a)}rename(e,t){const n=new Lo(this.document,e,t.getAttributes());return this.insert(Xo._createAfter(t),n),this.move(ei._createIn(t),Xo._createAt(n,0)),this.remove(ei._createOn(t)),n}clearClonedElementsGroup(e){this._cloneGroups.delete(e)}createPositionAt(e,t){return Xo._createAt(e,t)}createPositionAfter(e){return Xo._createAfter(e)}createPositionBefore(e){return Xo._createBefore(e)}createRange(e,t){return new ei(e,t)}createRangeOn(e){return ei._createOn(e)}createRangeIn(e){return ei._createIn(e)}createSelection(e,t,n){return new oi(e,t,n)}_wrapChildren(e,t,n,o){let i=t;const r=[];for(;i!1,e.parent._insertChild(e.offset,n);const o=new ei(e,e.getShiftedBy(1));this.wrap(o,t);const i=new Xo(n.parent,n.index);n._remove();const r=i.nodeBefore,s=i.nodeAfter;return r instanceof Rn&&s instanceof Rn?Ri(r,s):Ni(i)}_wrapAttributeElement(e,t){if(!ji(e,t))return!1;if(e.name!==t.name||e.priority!==t.priority)return!1;for(const n of e.getAttributeKeys())if("class"!==n&&"style"!==n&&t.hasAttribute(n)&&t.getAttribute(n)!==e.getAttribute(n))return!1;for(const n of 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r=[];n>0&&(r=r.concat(Array(n).fill("equal")));i-n>0&&(r=r.concat(Array(i-n).fill("insert")));o-n>0&&(r=r.concat(Array(o-n).fill("delete")));i0&&n.push({index:o,type:"insert",values:e.slice(o,r)});i-o>0&&n.push({index:o+(r-o),type:"delete",howMany:i-o});return n}(t,i)}function Yi(e,t,n){for(let o=0;o200||i>200||o+i>300)return Qi.fastDiff(e,t,n,!0);let r,s;if(il?-1:1;d[o+h]&&(d[o]=d[o+h].slice(0)),d[o]||(d[o]=[]),d[o].push(i>l?r:s);let f=Math.max(i,l),m=f-o;for(;ml;f--)u[f]=h(f);u[l]=h(l),m++}while(u[l]!==c);return d[l].slice(1)}function Ji(e,t,n){e.insertBefore(n,e.childNodes[t]||null)}function Zi(e){const t=e.parentNode;t&&t.removeChild(e)}function Xi(e){if(e){if(e.defaultView)return e instanceof e.defaultView.Document;if(e.ownerDocument&&e.ownerDocument.defaultView)return e instanceof e.ownerDocument.defaultView.Node}return!1}Qi.fastDiff=Gi;class er{constructor(e,t){this.domDocuments=new Set,this.domConverter=e,this.markedAttributes=new Set,this.markedChildren=new 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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),n=t.parent.ownerDocument;Hi(t.parent)?this._inlineFiller=t.parent:this._inlineFiller=tr(n,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)return;const n=this.domConverter.mapViewToDom(e).childNodes,o=Array.from(this.domConverter.viewChildrenToDom(e,t.ownerDocument,{withChildren:!1})),i=this._diffNodeLists(n,o),r=this._findReplaceActions(i,n,o);if(-1!==r.indexOf("replace")){const t={equal:0,insert:0,delete:0};for(const i of r)if("replace"===i){const i=t.equal+t.insert,r=t.equal+t.delete,s=e.getChild(i);!s||s.is("uiElement")||s.is("rawElement")||this._updateElementMappings(s,n[r]),Zi(o[i]),t.equal++}else t[i]++}}_updateElementMappings(e,t){this.domConverter.unbindDomElement(t),this.domConverter.bindElements(t,e),this.markedChildren.add(e),this.markedAttributes.add(e)}_getInlineFillerPosition(){const e=this.selection.getFirstPosition();return e.parent.is("$text")?Xo._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&&zi(t.parent)&&Hi(t.parent))}_removeInlineFiller(){const e=this._inlineFiller;if(!Hi(e))throw new hn.b("view-renderer-filler-was-lost: The inline filler node was lost.",this);qi(e)?e.parentNode.removeChild(e):e.data=e.data.substr(7),this._inlineFiller=null}_needsInlineFillerAtSelection(){if(1!=this.selection.rangeCount||!this.selection.isCollapsed)return!1;const e=this.selection.getFirstPosition(),t=e.parent,n=e.offset;if(!this.domConverter.mapViewToDom(t.root))return!1;if(!t.is("element"))return!1;if(!function(e){if("false"==e.getAttribute("contenteditable"))return!1;const t=e.findAncestor(e=>e.hasAttribute("contenteditable"));return!t||"true"==t.getAttribute("contenteditable")}(t))return!1;if(n===t.getFillerOffset())return!1;const o=e.nodeBefore,i=e.nodeAfter;return!(o instanceof Rn||i instanceof Rn)}_updateText(e,t){const n=this.domConverter.findCorrespondingDomText(e),o=this.domConverter.viewToDom(e,n.ownerDocument),i=n.data;let r=o.data;const s=t.inlineFillerPosition;if(s&&s.parent==e.parent&&s.offset==e.index&&(r=Ui+r),i!=r){const e=Gi(i,r);for(const t of e)"insert"===t.type?n.insertData(t.index,t.values.join("")):n.deleteData(t.index,t.howMany)}}_updateAttrs(e){const t=this.domConverter.mapViewToDom(e);if(!t)return;const n=Array.from(t.attributes).map(e=>e.name),o=e.getAttributeKeys();for(const n of o)t.setAttribute(n,e.getAttribute(n));for(const o of n)e.hasAttribute(o)||t.removeAttribute(o)}_updateChildren(e,t){const n=this.domConverter.mapViewToDom(e);if(!n)return;const o=t.inlineFillerPosition,i=this.domConverter.mapViewToDom(e).childNodes,r=Array.from(this.domConverter.viewChildrenToDom(e,n.ownerDocument,{bind:!0,inlineFillerPosition:o}));o&&o.parent===e&&tr(n.ownerDocument,r,o.offset);const s=this._diffNodeLists(i,r);let a=0;const c=new Set;for(const e of s)"delete"===e?(c.add(i[a]),Zi(i[a])):"equal"===e&&a++;a=0;for(const e of s)"insert"===e?(Ji(n,a,r[a]),a++):"equal"===e&&(this._markDescendantTextToSync(this.domConverter.domToView(r[a])),a++);for(const e of c)e.parentNode||this.domConverter.unbindDomElement(e)}_diffNodeLists(e,t){return Qi(e=function(e,t){const n=Array.from(e);if(0==n.length||!t)return n;n[n.length-1]==t&&n.pop();return n}(e,this._fakeSelectionContainer),t,or.bind(null,this.domConverter))}_findReplaceActions(e,t,n){if(-1===e.indexOf("insert")||-1===e.indexOf("delete"))return e;let o=[],i=[],r=[];const s={equal:0,insert:0,delete:0};for(const a of e)"insert"===a?r.push(n[s.equal+s.insert]):"delete"===a?i.push(t[s.equal+s.delete]):(o=o.concat(Qi(i,r,nr).map(e=>"equal"===e?"replace":e)),o.push("equal"),i=[],r=[]),s[a]++;return o.concat(Qi(i,r,nr).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;this._fakeSelectionContainer||(this._fakeSelectionContainer=function(e){const t=e.createElement("div");return Object.assign(t.style,{position:"fixed",top:0,left:"-9999px",width:"42px"}),t.textContent=" ",t}(t));const n=this._fakeSelectionContainer;if(this.domConverter.bindFakeSelection(n,this.selection),!this._fakeSelectionNeedsUpdate(e))return;n.parentElement&&n.parentElement==e||e.appendChild(n),n.textContent=this.selection.fakeSelectionLabel||" ";const o=t.getSelection(),i=t.createRange();o.removeAllRanges(),i.selectNodeContents(n),o.addRange(i)}_updateDomSelection(e){const t=e.ownerDocument.defaultView.getSelection();if(!this._domSelectionNeedsUpdate(t))return;const n=this.domConverter.viewPositionToDom(this.selection.anchor),o=this.domConverter.viewPositionToDom(this.selection.focus);e.focus(),t.collapse(n.parent,n.offset),t.extend(o.parent,o.offset),hi.isGecko&&function(e,t){const n=e.parent;if(n.nodeType!=Node.ELEMENT_NODE||e.offset!=n.childNodes.length-1)return;const o=n.childNodes[e.offset];o&&"BR"==o.tagName&&t.addRange(t.getRangeAt(0))}(o,t)}_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))}_fakeSelectionNeedsUpdate(e){const t=this._fakeSelectionContainer,n=e.ownerDocument.getSelection();return!t||t.parentElement!==e||(n.anchorNode!==t&&!t.contains(n.anchorNode)||t.textContent!==this.selection.fakeSelectionLabel)}_removeDomSelection(){for(const e of this.domDocuments){if(e.getSelection().rangeCount){const t=e.activeElement,n=this.domConverter.mapDomToView(t);t&&n&&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)}}}function tr(e,t,n){const o=t instanceof Array?t:t.childNodes,i=o[n];if(zi(i))return i.data=Ui+i.data,i;{const i=e.createTextNode(Ui);return Array.isArray(t)?o.splice(n,0,i):Ji(t,n,i),i}}function nr(e,t){return Xi(e)&&Xi(t)&&!zi(e)&&!zi(t)&&e.nodeType!==Node.COMMENT_NODE&&t.nodeType!==Node.COMMENT_NODE&&e.tagName.toLowerCase()===t.tagName.toLowerCase()}function or(e,t,n){return t===n||(zi(t)&&zi(n)?t.data===n.data:!(!e.isBlockFiller(t)||!e.isBlockFiller(n)))}xn(er,Ho);var ir={window:window,document:document};function rr(e){let t=0;for(;e.previousSibling;)e=e.previousSibling,t++;return t}function sr(e){const t=[];for(;e&&e.nodeType!=Node.DOCUMENT_NODE;)t.unshift(e),e=e.parentNode;return t}const ar=Fi(document);class cr{constructor(e,t={}){this.document=e,this.blockFillerMode=t.blockFillerMode||"br",this.preElements=["pre"],this.blockElements=["p","div","h1","h2","h3","h4","h5","h6","li","dd","dt","figcaption","td","th"],this._blockFiller="br"==this.blockFillerMode?Fi:Bi,this._domToViewMapping=new WeakMap,this._viewToDomMapping=new WeakMap,this._fakeSelectionMapping=new WeakMap}bindFakeSelection(e,t){this._fakeSelectionMapping.set(e,new oi(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 e.childNodes)this.unbindDomElement(t)}}bindDocumentFragments(e,t){this._domToViewMapping.set(e,t),this._viewToDomMapping.set(t,e)}viewToDom(e,t,n={}){if(e.is("$text")){const n=this._processDataFromViewText(e);return t.createTextNode(n)}{if(this.mapViewToDom(e))return this.mapViewToDom(e);let o;if(e.is("documentFragment"))o=t.createDocumentFragment(),n.bind&&this.bindDocumentFragments(o,e);else{if(e.is("uiElement"))return o=e.render(t),n.bind&&this.bindElements(o,e),o;o=e.hasAttribute("xmlns")?t.createElementNS(e.getAttribute("xmlns"),e.name):t.createElement(e.name),e.is("rawElement")&&e.render(o),n.bind&&this.bindElements(o,e);for(const t of e.getAttributeKeys())o.setAttribute(t,e.getAttribute(t))}if(n.withChildren||void 0===n.withChildren)for(const i of this.viewChildrenToDom(e,t,n))o.appendChild(i);return o}}*viewChildrenToDom(e,t,n={}){const o=e.getFillerOffset&&e.getFillerOffset();let i=0;for(const r of e.getChildren())o===i&&(yield this._blockFiller(t)),yield this.viewToDom(r,t,n),i++;o===i&&(yield this._blockFiller(t))}viewRangeToDom(e){const t=this.viewPositionToDom(e.start),n=this.viewPositionToDom(e.end),o=document.createRange();return o.setStart(t.parent,t.offset),o.setEnd(n.parent,n.offset),o}viewPositionToDom(e){const t=e.parent;if(t.is("$text")){const n=this.findCorrespondingDomText(t);if(!n)return null;let o=e.offset;return Hi(n)&&(o+=7),{parent:n,offset:o}}{let n,o,i;if(0===e.offset){if(n=this.mapViewToDom(t),!n)return null;i=n.childNodes[0]}else{const t=e.nodeBefore;if(o=t.is("$text")?this.findCorrespondingDomText(t):this.mapViewToDom(e.nodeBefore),!o)return null;n=o.parentNode,i=o.nextSibling}if(zi(i)&&Hi(i))return{parent:i,offset:7};return{parent:n,offset:o?rr(o)+1:0}}}domToView(e,t={}){if(this.isBlockFiller(e,this.blockFillerMode))return null;const n=this.getHostViewElement(e,this._domToViewMapping);if(n)return n;if(zi(e)){if(qi(e))return null;{const t=this._processDataFromDomText(e);return""===t?null:new Rn(this.document,t)}}if(this.isComment(e))return null;{if(this.mapDomToView(e))return this.mapDomToView(e);let n;if(this.isDocumentFragment(e))n=new Si(this.document),t.bind&&this.bindDocumentFragments(e,n);else{const o=t.keepOriginalCase?e.tagName:e.tagName.toLowerCase();n=new Ro(this.document,o),t.bind&&this.bindElements(e,n);const i=e.attributes;for(let e=i.length-1;e>=0;e--)n._setAttribute(i[e].name,i[e].value)}if(t.withChildren||void 0===t.withChildren)for(const o of this.domChildrenToView(e,t))n._appendChild(o);return n}}*domChildrenToView(e,t={}){for(let n=0;n{const{scrollLeft:t,scrollTop:n}=e;o.push([t,n])}),t.focus(),dr(t,e=>{const[t,n]=o.shift();e.scrollLeft=t,e.scrollTop=n}),ir.window.scrollTo(e,n)}}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}isBlockFiller(e){return"br"==this.blockFillerMode?e.isEqualNode(ar):!("BR"!==e.tagName||!ur(e,this.blockElements)||1!==e.parentNode.childNodes.length)||function(e,t){return zi(e)&&" "==e.data&&ur(e,t)&&1===e.parentNode.childNodes.length}(e,this.blockElements)}isDomSelectionBackward(e){if(e.isCollapsed)return!1;const t=document.createRange();t.setStart(e.anchorNode,e.anchorOffset),t.setEnd(e.focusNode,e.focusOffset);const n=t.collapsed;return t.detach(),n}getHostViewElement(e){const t=sr(e);for(t.pop();t.length;){const e=t.pop(),n=this._domToViewMapping.get(e);if(n&&(n.is("uiElement")||n.is("rawElement")))return n}return null}isDomSelectionCorrect(e){return this._isDomSelectionPositionCorrect(e.anchorNode,e.anchorOffset)&&this._isDomSelectionPositionCorrect(e.focusNode,e.focusOffset)}_isDomSelectionPositionCorrect(e,t){if(zi(e)&&Hi(e)&&t<7)return!1;if(this.isElement(e)&&Hi(e.childNodes[t]))return!1;const n=this.mapDomToView(e);return!n||!n.is("uiElement")&&!n.is("rawElement")}_processDataFromViewText(e){let t=e.data;if(e.getAncestors().some(e=>this.preElements.includes(e.name)))return t;if(" "==t.charAt(0)){const n=this._getTouchingViewTextNode(e,!1);!(n&&this._nodeEndsWithSpace(n))&&n||(t=" "+t.substr(1))}if(" "==t.charAt(t.length-1)){const n=this._getTouchingViewTextNode(e,!0);" "!=t.charAt(t.length-2)&&n&&" "!=n.data.charAt(0)||(t=t.substr(0,t.length-1)+" ")}return t.replace(/ {2}/g,"  ")}_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(lr(e,this.preElements))return Wi(e);t=t.replace(/[ \n\t\r]{1,}/g," ");const n=this._getTouchingInlineDomNode(e,!1),o=this._getTouchingInlineDomNode(e,!0),i=this._checkShouldLeftTrimDomText(n),r=this._checkShouldRightTrimDomText(e,o);return i&&(t=t.replace(/^ /,"")),r&&(t=t.replace(/ $/,"")),t=Wi(new Text(t)),t=t.replace(/ \u00A0/g," "),(/( |\u00A0)\u00A0$/.test(t)||!o||o.data&&" "==o.data.charAt(0))&&(t=t.replace(/\u00A0$/," ")),i&&(t=t.replace(/^\u00A0/," ")),t}_checkShouldLeftTrimDomText(e){return!e||(!!nn(e)||/[^\S\u00A0]/.test(e.data.charAt(e.data.length-1)))}_checkShouldRightTrimDomText(e,t){return!t&&!Hi(e)}_getTouchingViewTextNode(e,t){const n=new Zo({startPosition:t?Xo._createAfter(e):Xo._createBefore(e),direction:t?"forward":"backward"});for(const e of n){if(e.item.is("containerElement"))return null;if(e.item.is("element","br"))return null;if(e.item.is("$textProxy"))return e.item}return null}_getTouchingInlineDomNode(e,t){if(!e.parentNode)return null;const n=t?"nextNode":"previousNode",o=e.ownerDocument,i=sr(e)[0],r=o.createTreeWalker(i,NodeFilter.SHOW_TEXT|NodeFilter.SHOW_ELEMENT,{acceptNode:e=>zi(e)||"BR"==e.tagName?NodeFilter.FILTER_ACCEPT:NodeFilter.FILTER_SKIP});r.currentNode=e;const s=r[n]();if(null!==s){const t=function(e,t){const n=sr(e),o=sr(t);let i=0;for(;n[i]==o[i]&&n[i];)i++;return 0===i?null:n[i-1]}(e,s);if(t&&!lr(e,this.blockElements,t)&&!lr(s,this.blockElements,t))return s}return null}}function lr(e,t,n){let o=sr(e);return n&&(o=o.slice(o.indexOf(n)+1)),o.some(e=>e.tagName&&t.includes(e.tagName.toLowerCase()))}function dr(e,t){for(;e&&e!=ir.document;)t(e),e=e.parentNode}function ur(e,t){const n=e.parentNode;return n&&n.tagName&&t.includes(n.tagName.toLowerCase())}function hr(e){const t=Object.prototype.toString.apply(e);return"[object Window]"==t||"[object global]"==t}var fr=jo({},gn,{listenTo(e,...t){if(Xi(e)||hr(e)){const n=this._getProxyEmitter(e)||new mr(e);n.attach(...t),e=n}gn.listenTo.call(this,e,...t)},stopListening(e,t,n){if(Xi(e)||hr(e)){const t=this._getProxyEmitter(e);if(!t)return;e=t}gn.stopListening.call(this,e,t,n),e instanceof mr&&e.detach(t)},_getProxyEmitter(e){return t=this,n=gr(e),t[fn]&&t[fn][n]?t[fn][n].emitter:null;var t,n}});class mr{constructor(e){pn(this,gr(e)),this._domNode=e}}function gr(e){return e["data-ck-expando"]||(e["data-ck-expando"]=dn())}jo(mr.prototype,gn,{attach(e,t,n={}){if(this._domListeners&&this._domListeners[e])return;const o={capture:!!n.useCapture,passive:!!n.usePassive},i=this._createDomListener(e,o);this._domNode.addEventListener(e,i,o),this._domListeners||(this._domListeners={}),this._domListeners[e]=i},detach(e){let t;!this._domListeners[e]||(t=this._events[e])&&t.callbacks.length||this._domListeners[e].removeListener()},_createDomListener(e,t){const n=t=>{this.fire(e,t)};return n.removeListener=()=>{this._domNode.removeEventListener(e,n,t),delete this._domListeners[e]},n}});class pr{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()}}xn(pr,fr);var br=function(e){return this.__data__.set(e,"__lodash_hash_undefined__"),this};var wr=function(e){return this.__data__.has(e)};function kr(e){var t=-1,n=null==e?0:e.length;for(this.__data__=new ke;++ta))return!1;var l=r.get(e);if(l&&r.get(t))return l==t;var d=-1,u=!0,h=2&n?new _r:void 0;for(r.set(e,t),r.set(t,e);++d{this.listenTo(e,t,(e,t)=>{this.isEnabled&&this.onDomEvent(t)},{useCapture:this.useCapture})})}fire(e,t,n){this.isEnabled&&this.document.fire(e,new Lr(this.view,t,n))}}class jr extends Vr{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 pi(this)}})}}var zr=function(){return o.a.Date.now()},Br=/^\s+|\s+$/g,Fr=/^[-+]0x[0-9a-f]+$/i,Ur=/^0b[01]+$/i,Hr=/^0o[0-7]+$/i,qr=parseInt;var Wr=function(e){if("number"==typeof e)return e;if(zn(e))return NaN;if(V(e)){var t="function"==typeof e.valueOf?e.valueOf():e;e=V(t)?t+"":t}if("string"!=typeof e)return 0===e?e:+e;e=e.replace(Br,"");var n=Ur.test(e);return n||Hr.test(e)?qr(e.slice(2),n?2:8):Fr.test(e)?NaN:+e},$r=Math.max,Gr=Math.min;var Yr=function(e,t,n){var o,i,r,s,a,c,l=0,d=!1,u=!1,h=!0;if("function"!=typeof e)throw new TypeError("Expected a function");function f(t){var n=o,r=i;return o=i=void 0,l=t,s=e.apply(r,n)}function m(e){return l=e,a=setTimeout(p,t),d?f(e):s}function g(e){var n=e-c;return void 0===c||n>=t||n<0||u&&e-l>=r}function p(){var e=zr();if(g(e))return b(e);a=setTimeout(p,function(e){var n=t-(e-c);return u?Gr(n,r-(e-l)):n}(e))}function b(e){return a=void 0,h&&o?f(e):(o=i=void 0,s)}function w(){var e=zr(),n=g(e);if(o=arguments,i=this,c=e,n){if(void 0===a)return m(c);if(u)return clearTimeout(a),a=setTimeout(p,t),f(c)}return void 0===a&&(a=setTimeout(p,t)),s}return t=Wr(t)||0,V(n)&&(d=!!n.leading,r=(u="maxWait"in n)?$r(Wr(n.maxWait)||0,t):r,h="trailing"in n?!!n.trailing:h),w.cancel=function(){void 0!==a&&clearTimeout(a),l=0,o=c=i=a=void 0},w.flush=function(){return void 0===a?s:b(zr())},w};class Kr extends pr{constructor(e){super(e),this._fireSelectionChangeDoneDebounced=Yr(e=>this.document.fire("selectionChangeDone",e),200)}observe(){const e=this.document;e.on("keydown",(t,n)=>{var o;e.selection.isFake&&((o=n.keyCode)==gi.arrowright||o==gi.arrowleft||o==gi.arrowup||o==gi.arrowdown)&&this.isEnabled&&(n.preventDefault(),this._handleSelectionMove(n.keyCode))},{priority:"lowest"})}destroy(){super.destroy(),this._fireSelectionChangeDoneDebounced.cancel()}_handleSelectionMove(e){const t=this.document.selection,n=new oi(t.getRanges(),{backward:t.isBackward,fake:!1});e!=gi.arrowleft&&e!=gi.arrowup||n.setTo(n.getFirstPosition()),e!=gi.arrowright&&e!=gi.arrowdown||n.setTo(n.getLastPosition());const o={oldSelection:t,newSelection:n,domSelection:null};this.document.fire("selectionChange",o),this._fireSelectionChangeDoneDebounced(o)}}class Qr extends pr{constructor(e){super(e),this.mutationObserver=e.getObserver(Dr),this.selection=this.document.selection,this.domConverter=e.domConverter,this._documents=new WeakSet,this._fireSelectionChangeDoneDebounced=Yr(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)return;this.mutationObserver.flush();const t=e.defaultView.getSelection(),n=this.domConverter.domSelectionToView(t);if(0!=n.rangeCount){if(this.view.hasDomSelection=!0,!(this.selection.isEqual(n)&&this.domConverter.isDomSelectionCorrect(t)||++this._loopbackCounter>60))if(this.selection.isSimilar(n))this.view.forceRender();else{const e={oldSelection:this.selection,newSelection:n,domSelection:t};this.document.fire("selectionChange",e),this._fireSelectionChangeDoneDebounced(e)}}else this.view.hasDomSelection=!1}_clearInfiniteLoop(){this._loopbackCounter=0}}class Jr extends Vr{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.forceRender(),50)}),t.on("blur",(n,o)=>{const i=t.selection.editableElement;null!==i&&i!==o.target||(t.isFocused=!1,e.forceRender())})}onDomEvent(e){this.fire(e.type,e)}destroy(){this._renderTimeoutId&&clearTimeout(this._renderTimeoutId),super.destroy()}}class Zr extends Vr{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 Xr extends Vr{constructor(e){super(e),this.domEventType=["beforeinput"]}onDomEvent(e){this.fire(e.type,e)}}function es(e){return"[object Range]"==Object.prototype.toString.apply(e)}function ts(e){const t=e.ownerDocument.defaultView.getComputedStyle(e);return{top:parseInt(t.borderTopWidth,10),right:parseInt(t.borderRightWidth,10),bottom:parseInt(t.borderBottomWidth,10),left:parseInt(t.borderLeftWidth,10)}}const ns=["top","right","bottom","left","width","height"];class os{constructor(e){const t=es(e);if(Object.defineProperty(this,"_source",{value:e._source||e,writable:!0,enumerable:!1}),nn(e)||t)if(t){const t=os.getDomRangeRects(e);is(this,os.getBoundingRect(t))}else is(this,e.getBoundingClientRect());else if(hr(e)){const{innerWidth:t,innerHeight:n}=e;is(this,{top:0,right:t,bottom:n,left:0,width:t,height:n})}else is(this,e)}clone(){return new os(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:Math.max(this.top,e.top),right:Math.min(this.right,e.right),bottom:Math.min(this.bottom,e.bottom),left:Math.max(this.left,e.left)};return t.width=t.right-t.left,t.height=t.bottom-t.top,t.width<0||t.height<0?null:new os(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(!rs(e)){let n=e.parentNode||e.commonAncestorContainer;for(;n&&!rs(n);){const e=new os(n),o=t.getIntersection(e);if(!o)return null;o.getArea()gs(e,o));const s=gs(e,o);if(as(o,s,t),o.parent!=o){if(i=o.frameElement,o=o.parent,!i)return}else o=null}}function as(e,t,n){const o=t.clone().moveBy(0,n),i=t.clone().moveBy(0,-n),r=new os(e).excludeScrollbarsAndBorders();if(![i,o].every(e=>r.contains(e))){let{scrollX:s,scrollY:a}=e;ds(i,r)?a-=r.top-t.top+n:ls(o,r)&&(a+=t.bottom-r.bottom+n),us(t,r)?s-=r.left-t.left+n:hs(t,r)&&(s+=t.right-r.right+n),e.scrollTo(s,a)}}function cs(e,t){const n=fs(e);let o,i;for(;e!=n.document.body;)i=t(),o=new os(e).excludeScrollbarsAndBorders(),o.contains(i)||(ds(i,o)?e.scrollTop-=o.top-i.top:ls(i,o)&&(e.scrollTop+=i.bottom-o.bottom),us(i,o)?e.scrollLeft-=o.left-i.left:hs(i,o)&&(e.scrollLeft+=i.right-o.right)),e=e.parentNode}function ls(e,t){return e.bottom>t.bottom}function ds(e,t){return e.topt.right}function fs(e){return es(e)?e.startContainer.ownerDocument.defaultView:e.ownerDocument.defaultView}function ms(e){if(es(e)){let t=e.commonAncestorContainer;return zi(t)&&(t=t.parentNode),t}return e.parentNode}function gs(e,t){const n=fs(e),o=new os(e);if(n===t)return o;{let e=n;for(;e!=t;){const t=e.frameElement,n=new os(t).excludeScrollbarsAndBorders();o.moveBy(n.left,n.top),e=e.parent}}return o}Object.assign({},{scrollViewportToShowTarget:ss,scrollAncestorsToShowTarget:function(e){cs(ms(e),()=>new os(e))}});class ps{constructor(e){this.document=new ri(e),this.domConverter=new cr(this.document),this.domRoots=new Map,this.set("isRenderingInProgress",!1),this.set("hasDomSelection",!1),this._renderer=new er(this.domConverter,this.document.selection),this._renderer.bind("isFocused").to(this.document),this._initialDomRootAttributes=new WeakMap,this._observers=new Map,this._ongoingChange=!1,this._postFixersInProgress=!1,this._renderingDisabled=!1,this._hasChangedSinceTheLastRendering=!1,this._writer=new Ei(this.document),this.addObserver(Dr),this.addObserver(Qr),this.addObserver(Jr),this.addObserver(jr),this.addObserver(Kr),this.addObserver(Zr),hi.isAndroid&&this.addObserver(Xr),this.document.on("keydown",$i),Ai(this),this.on("render",()=>{this._render(),this.document.fire("layoutChanged"),this._hasChangedSinceTheLastRendering=!1}),this.listenTo(this.document.selection,"change",()=>{this._hasChangedSinceTheLastRendering=!0})}attachDomRoot(e,t="main"){const n=this.document.getRoot(t);n._name=e.tagName.toLowerCase();const o={};for(const{name:t,value:i}of Array.from(e.attributes))o[t]=i,"class"===t?this._writer.addClass(i.split(" "),n):this._writer.setAttribute(t,i,n);this._initialDomRootAttributes.set(e,o);const i=()=>{this._writer.setAttribute("contenteditable",!n.isReadOnly,n),n.isReadOnly?this._writer.addClass("ck-read-only",n):this._writer.removeClass("ck-read-only",n)};i(),this.domRoots.set(t,e),this.domConverter.bindElements(e,n),this._renderer.markToSync("children",n),this._renderer.markToSync("attributes",n),this._renderer.domDocuments.add(e.ownerDocument),n.on("change:children",(e,t)=>this._renderer.markToSync("children",t)),n.on("change:attributes",(e,t)=>this._renderer.markToSync("attributes",t)),n.on("change:text",(e,t)=>this._renderer.markToSync("text",t)),n.on("change:isReadOnly",()=>this.change(i)),n.on("change",()=>{this._hasChangedSinceTheLastRendering=!0});for(const n of this._observers.values())n.observe(e,t)}detachDomRoot(e){const t=this.domRoots.get(e);Array.from(t.attributes).forEach(({name:e})=>t.removeAttribute(e));const n=this._initialDomRootAttributes.get(t);for(const e in n)t.setAttribute(e,n[e]);this.domRoots.delete(e),this.domConverter.unbindDomElement(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[e,n]of this.domRoots)t.observe(n,e);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&&ss({target:this.domConverter.viewRangeToDom(e),viewportOffset:20})}focus(){if(!this.document.isFocused){const e=this.document.selection.editableElement;e&&(this.domConverter.focus(e),this.forceRender())}}change(e){if(this.isRenderingInProgress||this._postFixersInProgress)throw new hn.b("cannot-change-view-tree: Attempting to make changes to the view when it is in an incorrect state: rendering or post-fixers are in progress. This may cause some unexpected behavior and inconsistency between the DOM and the view.",this);try{if(this._ongoingChange)return e(this._writer);this._ongoingChange=!0;const t=e(this._writer);return this._ongoingChange=!1,!this._renderingDisabled&&this._hasChangedSinceTheLastRendering&&(this._postFixersInProgress=!0,this.document._callPostFixers(this._writer),this._postFixersInProgress=!1,this.fire("render")),t}catch(e){hn.b.rethrowUnexpectedError(e,this)}}forceRender(){this._hasChangedSinceTheLastRendering=!0,this.change(()=>{})}destroy(){for(const e of this._observers.values())e.destroy();this.document.destroy(),this.stopListening()}createPositionAt(e,t){return Xo._createAt(e,t)}createPositionAfter(e){return Xo._createAfter(e)}createPositionBefore(e){return Xo._createBefore(e)}createRange(e,t){return new ei(e,t)}createRangeOn(e){return ei._createOn(e)}createRangeIn(e){return ei._createIn(e)}createSelection(e,t,n){return new oi(e,t,n)}_disableRendering(e){this._renderingDisabled=e,0==e&&this.change(()=>{})}_render(){this.isRenderingInProgress=!0,this.disableObservers(),this._renderer.render(),this.enableObservers(),this.isRenderingInProgress=!1}}xn(ps,Ho);class bs{constructor(e){this.parent=null,this._attrs=Ln(e)}get index(){let e;if(!this.parent)return null;if(null===(e=this.parent.getChildIndex(this)))throw new hn.b("model-node-not-found-in-parent: The node's parent does not contain this node.",this);return e}get startOffset(){let e;if(!this.parent)return null;if(null===(e=this.parent.getChildStartOffset(this)))throw new hn.b("model-node-not-found-in-parent: The node's parent does not contain this node.",this);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}isAttached(){return this.root.is("rootElement")}getPath(){const e=[];let t=this;for(;t.parent;)e.unshift(t.startOffset),t=t.parent;return e}getAncestors(e={includeSelf:!1,parentFirst:!1}){const t=[];let n=e.includeSelf?this:this.parent;for(;n;)t[e.parentFirst?"push":"unshift"](n),n=n.parent;return t}getCommonAncestor(e,t={}){const n=this.getAncestors(t),o=e.getAncestors(t);let i=0;for(;n[i]==o[i]&&n[i];)i++;return 0===i?null:n[i-1]}isBefore(e){if(this==e)return!1;if(this.root!==e.root)return!1;const t=this.getPath(),n=e.getPath(),o=In(t,n);switch(o){case"prefix":return!0;case"extension":return!1;default:return t[o](e[t[0]]=t[1],e),{})),e}is(e){return"node"===e||"model:node"===e}_clone(){return new bs(this._attrs)}_remove(){this.parent._removeChildren(this.index)}_setAttribute(e,t){this._attrs.set(e,t)}_setAttributesTo(e){this._attrs=Ln(e)}_removeAttribute(e){return this._attrs.delete(e)}_clearAttributes(){this._attrs.clear()}}class ws extends bs{constructor(e,t){super(t),this._data=e||""}get offsetSize(){return this.data.length}get data(){return this._data}is(e){return"$text"===e||"model:$text"===e||"text"===e||"model:text"===e||"node"===e||"model:node"===e}toJSON(){const e=super.toJSON();return e.data=this.data,e}_clone(){return new ws(this.data,this.getAttributes())}static fromJSON(e){return new ws(e.data,e.attributes)}}class ks{constructor(e,t,n){if(this.textNode=e,t<0||t>e.offsetSize)throw new hn.b("model-textproxy-wrong-offsetintext: Given offsetInText value is incorrect.",this);if(n<0||t+n>e.offsetSize)throw new hn.b("model-textproxy-wrong-length: Given length value is incorrect.",this);this.data=e.data.substring(t,t+n),this.offsetInText=t}get startOffset(){return null!==this.textNode.startOffset?this.textNode.startOffset+this.offsetInText:null}get offsetSize(){return this.data.length}get endOffset(){return null!==this.startOffset?this.startOffset+this.offsetSize:null}get isPartial(){return this.offsetSize!==this.textNode.offsetSize}get parent(){return this.textNode.parent}get root(){return this.textNode.root}is(e){return"$textProxy"===e||"model:$textProxy"===e||"textProxy"===e||"model:textProxy"===e}getPath(){const e=this.textNode.getPath();return e.length>0&&(e[e.length-1]+=this.offsetInText),e}getAncestors(e={includeSelf:!1,parentFirst:!1}){const t=[];let n=e.includeSelf?this:this.parent;for(;n;)t[e.parentFirst?"push":"unshift"](n),n=n.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 _s{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 hn.b("model-nodelist-index-out-of-bounds: Given index cannot be found in the node list.",this);return this.getNodeStartOffset(t)}offsetToIndex(e){let t=0;for(const n of this._nodes){if(e>=t&&ee.toJSON())}}class vs extends bs{constructor(e,t,n){super(t),this.name=e,this._children=new _s,n&&this._insertChild(0,n)}get childCount(){return this._children.length}get maxOffset(){return this._children.maxOffset}get isEmpty(){return 0===this.childCount}is(e,t=null){return t?t===this.name&&("element"===e||"model:element"===e):"element"===e||"model:element"===e||"node"===e||"model:node"===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 n of e)t=t.getChild(t.offsetToIndex(n));return t}findAncestor(e,t={includeSelf:!1}){let n=t.includeSelf?this:this.parent;for(;n;){if(n.name===e)return n;n=n.parent}return null}toJSON(){const e=super.toJSON();if(e.name=this.name,this._children.length>0){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 vs(this.name,this.getAttributes(),t)}_appendChild(e){this._insertChild(this.childCount,e)}_insertChild(e,t){const n=function(e){if("string"==typeof e)return[new ws(e)];yn(e)||(e=[e]);return Array.from(e).map(e=>"string"==typeof e?new ws(e):e instanceof ks?new ws(e.data,e.getAttributes()):e)}(t);for(const e of n)null!==e.parent&&e._remove(),e.parent=this;this._children._insertNodes(e,n)}_removeChildren(e,t=1){const n=this._children._removeNodes(e,t);for(const e of n)e.parent=null;return n}static fromJSON(e){let t=null;if(e.children){t=[];for(const n of e.children)n.name?t.push(vs.fromJSON(n)):t.push(ws.fromJSON(n))}return new vs(e.name,e.attributes,t)}}class ys{constructor(e={}){if(!e.boundaries&&!e.startPosition)throw new hn.b("model-tree-walker-no-start-position: Neither boundaries nor starting position have been defined.",null);const t=e.direction||"forward";if("forward"!=t&&"backward"!=t)throw new hn.b("model-tree-walker-unknown-direction: Only `backward` and `forward` direction allowed.",e,{direction:t});this.direction=t,this.boundaries=e.boundaries||null,e.startPosition?this.position=e.startPosition.clone():this.position=As._createAt(this.boundaries["backward"==this.direction?"end":"start"]),this.position.stickiness="toNone",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,n,o,i;do{o=this.position,i=this._visitedParent,({done:t,value:n}=this.next())}while(!t&&e(n));t||(this.position=o,this._visitedParent=i)}next(){return"forward"==this.direction?this._next():this._previous()}_next(){const e=this.position,t=this.position.clone(),n=this._visitedParent;if(null===n.parent&&t.offset===n.maxOffset)return{done:!0};if(n===this._boundaryEndParent&&t.offset==this.boundaries.end.offset)return{done:!0};const o=t.parent,i=Cs(t,o),r=i||Ts(t,o,i);if(r instanceof vs)return this.shallow?t.offset++:(t.path.push(0),this._visitedParent=r),this.position=t,xs("elementStart",r,e,t,1);if(r instanceof ws){let o;if(this.singleCharacters)o=1;else{let e=r.endOffset;this._boundaryEndParent==n&&this.boundaries.end.offsete&&(e=this.boundaries.start.offset),o=t.offset-e}const i=t.offset-r.startOffset,s=new ks(r,i-o,o);return t.offset-=o,this.position=t,xs("text",s,e,t,o)}return t.path.pop(),this.position=t,this._visitedParent=n.parent,xs("elementStart",n,e,t,1)}}function xs(e,t,n,o,i){return{done:!1,value:{type:e,item:t,previousPosition:n,nextPosition:o,length:i}}}class As{constructor(e,t,n="toNone"){if(!e.is("element")&&!e.is("documentFragment"))throw new hn.b("model-position-root-invalid: Position root invalid.",e);if(!(t instanceof Array)||0===t.length)throw new hn.b("model-position-path-incorrect-format: Position path must be an array with at least one item.",e,{path:t});e.is("rootElement")?t=t.slice():(t=[...e.getPath(),...t],e=e.root),this.root=e,this.path=t,this.stickiness=n}get offset(){return this.path[this.path.length-1]}set offset(e){this.path[this.path.length-1]=e}get parent(){let e=this.root;for(let t=0;tn.path.length){if(t.offset!==o.maxOffset)return!1;t.path=t.path.slice(0,-1),o=o.parent,t.offset++}else{if(0!==n.offset)return!1;n.path=n.path.slice(0,-1)}}}is(e){return"position"===e||"model:position"===e}hasSameParentAs(e){if(this.root!==e.root)return!1;return"same"==In(this.getParentPath(),e.getParentPath())}getTransformedByOperation(e){let t;switch(e.type){case"insert":t=this._getTransformedByInsertOperation(e);break;case"move":case"remove":case"reinsert":t=this._getTransformedByMoveOperation(e);break;case"split":t=this._getTransformedBySplitOperation(e);break;case"merge":t=this._getTransformedByMergeOperation(e);break;default:t=As._createAt(this)}return t}_getTransformedByInsertOperation(e){return this._getTransformedByInsertion(e.position,e.howMany)}_getTransformedByMoveOperation(e){return this._getTransformedByMove(e.sourcePosition,e.targetPosition,e.howMany)}_getTransformedBySplitOperation(e){const t=e.movedRange;return t.containsPosition(this)||t.start.isEqual(this)&&"toNext"==this.stickiness?this._getCombined(e.splitPosition,e.moveTargetPosition):e.graveyardPosition?this._getTransformedByMove(e.graveyardPosition,e.insertionPosition,1):this._getTransformedByInsertion(e.insertionPosition,1)}_getTransformedByMergeOperation(e){const t=e.movedRange;let n;return t.containsPosition(this)||t.start.isEqual(this)?(n=this._getCombined(e.sourcePosition,e.targetPosition),e.sourcePosition.isBefore(e.targetPosition)&&(n=n._getTransformedByDeletion(e.deletionPosition,1))):n=this.isEqual(e.deletionPosition)?As._createAt(e.deletionPosition):this._getTransformedByMove(e.deletionPosition,e.graveyardPosition,1),n}_getTransformedByDeletion(e,t){const n=As._createAt(this);if(this.root!=e.root)return n;if("same"==In(e.getParentPath(),this.getParentPath())){if(e.offsetthis.offset)return null;n.offset-=t}}else if("prefix"==In(e.getParentPath(),this.getParentPath())){const o=e.path.length-1;if(e.offset<=this.path[o]){if(e.offset+t>this.path[o])return null;n.path[o]-=t}}return n}_getTransformedByInsertion(e,t){const n=As._createAt(this);if(this.root!=e.root)return n;if("same"==In(e.getParentPath(),this.getParentPath()))(e.offsett+1;){const t=o.maxOffset-n.offset;0!==t&&e.push(new Ss(n,n.getShiftedBy(t))),n.path=n.path.slice(0,-1),n.offset++,o=o.parent}for(;n.path.length<=this.end.path.length;){const t=this.end.path[n.path.length-1],o=t-n.offset;0!==o&&e.push(new Ss(n,n.getShiftedBy(o))),n.offset=t,n.path.push(0)}return e}getWalker(e={}){return e.boundaries=this,new ys(e)}*getItems(e={}){e.boundaries=this,e.ignoreElementEnd=!0;const t=new ys(e);for(const e of t)yield e.item}*getPositions(e={}){e.boundaries=this;const t=new ys(e);yield t.position;for(const e of t)yield e.nextPosition}getTransformedByOperation(e){switch(e.type){case"insert":return this._getTransformedByInsertOperation(e);case"move":case"remove":case"reinsert":return this._getTransformedByMoveOperation(e);case"split":return[this._getTransformedBySplitOperation(e)];case"merge":return[this._getTransformedByMergeOperation(e)]}return[new Ss(this.start,this.end)]}getTransformedByOperations(e){const t=[new Ss(this.start,this.end)];for(const n of e)for(let e=0;e0?new this(n,o):new this(o,n)}static _createIn(e){return new this(As._createAt(e,0),As._createAt(e,e.maxOffset))}static _createOn(e){return this._createFromPositionAndShift(As._createBefore(e),e.offsetSize)}static _createFromRanges(e){if(0===e.length)throw new hn.b("range-create-from-ranges-empty-array: At least one range has to be passed.",null);if(1==e.length)return e[0].clone();const t=e[0];e.sort((e,t)=>e.start.isAfter(t.start)?1:-1);const n=e.indexOf(t),o=new this(t.start,t.end);if(n>0)for(let t=n-1;e[t].end.isEqual(o.start);t++)o.start=As._createAt(e[t].start);for(let t=n+1;t{if(t.viewPosition)return;const n=this._modelToViewMapping.get(t.modelPosition.parent);t.viewPosition=this.findPositionIn(n,t.modelPosition.offset)},{priority:"low"}),this.on("viewToModelPosition",(e,t)=>{if(t.modelPosition)return;const n=this.findMappedViewAncestor(t.viewPosition),o=this._viewToModelMapping.get(n),i=this._toModelOffset(t.viewPosition.parent,t.viewPosition.offset,n);t.modelPosition=As._createAt(o,i)},{priority:"low"})}bindElements(e,t){this._modelToViewMapping.set(e,t),this._viewToModelMapping.set(t,e)}unbindViewElement(e){const t=this.toModelElement(e);if(this._viewToModelMapping.delete(e),this._elementToMarkerNames.has(e))for(const t of this._elementToMarkerNames.get(e))this._unboundMarkerNames.add(t);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 n=this._markerNameToElements.get(t)||new Set;n.add(e);const o=this._elementToMarkerNames.get(e)||new Set;o.add(t),this._markerNameToElements.set(t,n),this._elementToMarkerNames.set(e,o)}unbindElementFromMarkerName(e,t){const n=this._markerNameToElements.get(t);n&&(n.delete(e),0==n.size&&this._markerNameToElements.delete(t));const o=this._elementToMarkerNames.get(e);o&&(o.delete(t),0==o.size&&this._elementToMarkerNames.delete(e))}flushUnboundMarkerNames(){const e=Array.from(this._unboundMarkerNames);return this._unboundMarkerNames.clear(),e}clearBindings(){this._modelToViewMapping=new WeakMap,this._viewToModelMapping=new WeakMap,this._markerNameToElements=new Map,this._elementToMarkerNames=new Map,this._unboundMarkerNames=new Set}toModelElement(e){return this._viewToModelMapping.get(e)}toViewElement(e){return this._modelToViewMapping.get(e)}toModelRange(e){return new Ss(this.toModelPosition(e.start),this.toModelPosition(e.end))}toViewRange(e){return new ei(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 n={modelPosition:e,mapper:this,isPhantom:t.isPhantom};return this.fire("modelToViewPosition",n),n.viewPosition}markerNameToElements(e){const t=this._markerNameToElements.get(e);if(!t)return null;const n=new Set;for(const e of t)if(e.is("attributeElement"))for(const t of e.getElementsWithSameId())n.add(t);else n.add(e);return n}registerViewToModelLength(e,t){this._viewToModelLengthCallbacks.set(e,t)}findMappedViewAncestor(e){let t=e.parent;for(;!this._viewToModelMapping.has(t);)t=t.parent;return t}_toModelOffset(e,t,n){if(n!=e){return this._toModelOffset(e.parent,e.index,n)+this._toModelOffset(e,t,e)}if(e.is("$text"))return t;let o=0;for(let n=0;n1?t[0]+":"+t[1]:t[0]}class Ns{constructor(e){this.conversionApi=Object.assign({dispatcher:this},e)}convertChanges(e,t,n){for(const t of e.getMarkersToRemove())this.convertMarkerRemove(t.name,t.range,n);for(const t of e.getChanges())"insert"==t.type?this.convertInsert(Ss._createFromPositionAndShift(t.position,t.length),n):"remove"==t.type?this.convertRemove(t.position,t.length,t.name,n):this.convertAttribute(t.range,t.attributeKey,t.attributeOldValue,t.attributeNewValue,n);for(const e of this.conversionApi.mapper.flushUnboundMarkerNames()){const o=t.get(e).getRange();this.convertMarkerRemove(e,o,n),this.convertMarkerAdd(e,o,n)}for(const t of e.getMarkersToAdd())this.convertMarkerAdd(t.name,t.range,n)}convertInsert(e,t){this.conversionApi.writer=t,this.conversionApi.consumable=this._createInsertConsumable(e);for(const t of e){const e=t.item,n={item:e,range:Ss._createFromPositionAndShift(t.previousPosition,t.length)};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,n,o){this.conversionApi.writer=o,this.fire("remove:"+n,{position:e,length:t},this.conversionApi),this._clearConversionApi()}convertAttribute(e,t,n,o,i){this.conversionApi.writer=i,this.conversionApi.consumable=this._createConsumableForRange(e,"attribute:"+t);for(const i of e){const e={item:i.item,range:Ss._createFromPositionAndShift(i.previousPosition,i.length),attributeKey:t,attributeOldValue:n,attributeNewValue:o};this._testAndFire("attribute:"+t,e)}this._clearConversionApi()}convertSelection(e,t,n){const o=Array.from(t.getMarkersAtPosition(e.getFirstPosition()));if(this.conversionApi.writer=n,this.conversionApi.consumable=this._createSelectionConsumable(e,o),this.fire("selection",{selection:e},this.conversionApi),e.isCollapsed){for(const t of o){const n=t.getRange();if(!Os(e.getFirstPosition(),t,this.conversionApi.mapper))continue;const o={item:e,markerName:t.name,markerRange:n};this.conversionApi.consumable.test(e,"addMarker:"+t.name)&&this.fire("addMarker:"+t.name,o,this.conversionApi)}for(const t of e.getAttributeKeys()){const n={item:e,range:e.getFirstRange(),attributeKey:t,attributeOldValue:null,attributeNewValue:e.getAttribute(t)};this.conversionApi.consumable.test(e,"attribute:"+n.attributeKey)&&this.fire("attribute:"+n.attributeKey+":$text",n,this.conversionApi)}this._clearConversionApi()}}convertMarkerAdd(e,t,n){if(!t.root.document||"$graveyard"==t.root.rootName)return;this.conversionApi.writer=n;const o="addMarker:"+e,i=new Ms;if(i.add(t,o),this.conversionApi.consumable=i,this.fire(o,{markerName:e,markerRange:t},this.conversionApi),i.test(t,o)){this.conversionApi.consumable=this._createConsumableForRange(t,o);for(const n of t.getItems()){if(!this.conversionApi.consumable.test(n,o))continue;const i={item:n,range:Ss._createOn(n),markerName:e,markerRange:t};this.fire(o,i,this.conversionApi)}this._clearConversionApi()}}convertMarkerRemove(e,t,n){t.root.document&&"$graveyard"!=t.root.rootName&&(this.conversionApi.writer=n,this.fire("removeMarker:"+e,{markerName:e,markerRange:t},this.conversionApi),this._clearConversionApi())}_createInsertConsumable(e){const t=new Ms;for(const n of e){const e=n.item;t.add(e,"insert");for(const n of e.getAttributeKeys())t.add(e,"attribute:"+n)}return t}_createConsumableForRange(e,t){const n=new Ms;for(const o of e.getItems())n.add(o,t);return n}_createSelectionConsumable(e,t){const n=new Ms;n.add(e,"selection");for(const o of t)n.add(e,"addMarker:"+o.name);for(const t of e.getAttributeKeys())n.add(e,"attribute:"+t);return n}_testAndFire(e,t){if(!this.conversionApi.consumable.test(t.item,e))return;const n=t.item.name||"$text";this.fire(e+":"+n,t,this.conversionApi)}_clearConversionApi(){delete this.conversionApi.writer,delete this.conversionApi.consumable}}function Os(e,t,n){const o=t.getRange(),i=Array.from(e.getAncestors());i.shift(),i.reverse();return!i.some(e=>{if(o.containsItem(e)){return!!n.toViewElement(e).getCustomProperty("addHighlight")}})}xn(Ns,gn);class Rs{constructor(e,t,n){this._lastRangeBackward=!1,this._ranges=[],this._attrs=new Map,e&&this.setTo(e,t,n)}get anchor(){if(this._ranges.length>0){const e=this._ranges[this._ranges.length-1];return this._lastRangeBackward?e.end:e.start}return null}get focus(){if(this._ranges.length>0){const e=this._ranges[this._ranges.length-1];return this._lastRangeBackward?e.start:e.end}return null}get isCollapsed(){return 1===this._ranges.length&&this._ranges[0].isCollapsed}get rangeCount(){return this._ranges.length}get isBackward(){return!this.isCollapsed&&this._lastRangeBackward}isEqual(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 n=!1;for(const o of e._ranges)if(t.isEqual(o)){n=!0;break}if(!n)return!1}return!0}*getRanges(){for(const e of this._ranges)yield new Ss(e.start,e.end)}getFirstRange(){let e=null;for(const t of this._ranges)e&&!t.start.isBefore(e.start)||(e=t);return e?new Ss(e.start,e.end):null}getLastRange(){let e=null;for(const t of this._ranges)e&&!t.end.isAfter(e.end)||(e=t);return e?new Ss(e.start,e.end):null}getFirstPosition(){const e=this.getFirstRange();return e?e.start.clone():null}getLastPosition(){const e=this.getLastRange();return e?e.end.clone():null}setTo(e,t,n){if(null===e)this._setRanges([]);else if(e instanceof Rs)this._setRanges(e.getRanges(),e.isBackward);else if(e&&"function"==typeof e.getRanges)this._setRanges(e.getRanges(),e.isBackward);else if(e instanceof Ss)this._setRanges([e],!!t&&!!t.backward);else if(e instanceof As)this._setRanges([new Ss(e)]);else if(e instanceof bs){const o=!!n&&!!n.backward;let i;if("in"==t)i=Ss._createIn(e);else if("on"==t)i=Ss._createOn(e);else{if(void 0===t)throw new hn.b("model-selection-setTo-required-second-parameter: selection.setTo requires the second parameter when the first parameter is a node.",[this,e]);i=new Ss(As._createAt(e,t))}this._setRanges([i],o)}else{if(!yn(e))throw new hn.b("model-selection-setTo-not-selectable: Cannot set the selection to the given place.",[this,e]);this._setRanges(e,t&&!!t.backward)}}_setRanges(e,t=!1){const n=(e=Array.from(e)).some(t=>{if(!(t instanceof Ss))throw new hn.b("model-selection-set-ranges-not-range: Selection range set to an object that is not an instance of model.Range.",[this,e]);return this._ranges.every(e=>!e.isEqual(t))});if(e.length!==this._ranges.length||n){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 hn.b("model-selection-setFocus-no-ranges: Cannot set selection focus if there are no ranges in selection.",[this,e]);const n=As._createAt(e,t);if("same"==n.compareWith(this.focus))return;const o=this.anchor;this._ranges.length&&this._popRange(),"before"==n.compareWith(o)?(this._pushRange(new Ss(n,o)),this._lastRangeBackward=!0):(this._pushRange(new Ss(o,n)),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(){return 1!==this.rangeCount?null:this.getFirstRange().getContainedElement()}is(e){return"selection"===e||"model:selection"===e}*getSelectedBlocks(){const e=new WeakSet;for(const t of this.getRanges()){const n=Vs(t.start,e);n&&js(n,t)&&(yield n);for(const n of t.getWalker()){const o=n.item;"elementEnd"==n.type&&Ls(o,e,t)&&(yield o)}const o=Vs(t.end,e);o&&!t.end.isTouching(As._createAt(o,0))&&js(o,t)&&(yield o)}}containsEntireContent(e=this.anchor.root){const t=As._createAt(e,0),n=As._createAt(e,"end");return t.isTouching(this.getFirstPosition())&&n.isTouching(this.getLastPosition())}_pushRange(e){this._checkRange(e),this._ranges.push(new Ss(e.start,e.end))}_checkRange(e){for(let t=0;t0;)this._popRange()}_popRange(){this._ranges.pop()}}function Ds(e,t){return!t.has(e)&&(t.add(e),e.root.document.model.schema.isBlock(e)&&e.parent)}function Ls(e,t,n){return Ds(e,t)&&js(e,n)}function Vs(e,t){const n=e.parent.root.document.model.schema,o=e.parent.getAncestors({parentFirst:!0,includeSelf:!0});let i=!1;const r=o.find(e=>!i&&(i=n.isLimit(e),!i&&Ds(e,t)));return o.forEach(e=>t.add(e)),r}function js(e,t){const n=function(e){const t=e.root.document.model.schema;let n=e.parent;for(;n;){if(t.isBlock(n))return n;n=n.parent}}(e);if(!n)return!0;return!t.containsRange(Ss._createOn(n),!0)}xn(Rs,gn);class zs extends Ss{constructor(e,t){super(e,t),Bs.call(this)}detach(){this.stopListening()}is(e){return"liveRange"===e||"model:liveRange"===e||"range"==e||"model:range"===e}toRange(){return new Ss(this.start,this.end)}static fromRange(e){return new zs(e.start,e.end)}}function Bs(){this.listenTo(this.root.document.model,"applyOperation",(e,t)=>{const n=t[0];n.isDocumentOperation&&Fs.call(this,n)},{priority:"low"})}function Fs(e){const t=this.getTransformedByOperation(e),n=Ss._createFromRanges(t),o=!n.isEqual(this),i=function(e,t){switch(t.type){case"insert":return e.containsPosition(t.position);case"move":case"remove":case"reinsert":case"merge":return e.containsPosition(t.sourcePosition)||e.start.isEqual(t.sourcePosition)||e.containsPosition(t.targetPosition);case"split":return e.containsPosition(t.splitPosition)||e.containsPosition(t.insertionPosition)}return!1}(this,e);let r=null;if(o){"$graveyard"==n.root.rootName&&(r="remove"==e.type?e.sourcePosition:e.deletionPosition);const t=this.toRange();this.start=n.start,this.end=n.end,this.fire("change:range",t,{deletionPosition:r})}else i&&this.fire("change:content",this.toRange(),{deletionPosition:r})}xn(zs,gn);class Us{constructor(e){this._selection=new Hs(e),this._selection.delegate("change:range").to(this),this._selection.delegate("change:attribute").to(this),this._selection.delegate("change:marker").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 markers(){return this._selection.markers}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)}refresh(){this._selection._updateMarkers(),this._selection._updateAttributes(!1)}is(e){return"selection"===e||"model:selection"==e||"documentSelection"==e||"model:documentSelection"==e}_setFocus(e,t){this._selection.setFocus(e,t)}_setTo(e,t,n){this._selection.setTo(e,t,n)}_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"selection:"+e}static _isStoreAttributeKey(e){return e.startsWith("selection:")}}xn(Us,gn);class Hs extends Rs{constructor(e){super(),this.markers=new An({idProperty:"name"}),this._model=e.model,this._document=e,this._attributePriority=new Map,this._selectionRestorePosition=null,this._hasChangedRange=!1,this._overriddenGravityRegister=new Set,this.listenTo(this._model,"applyOperation",(e,t)=>{const n=t[0];n.isDocumentOperation&&"marker"!=n.type&&"rename"!=n.type&&"noop"!=n.type&&(0==this._ranges.length&&this._selectionRestorePosition&&this._fixGraveyardSelection(this._selectionRestorePosition),this._selectionRestorePosition=null,this._hasChangedRange&&(this._hasChangedRange=!1,this.fire("change:range",{directChange:!1})))},{priority:"lowest"}),this.on("change:range",()=>{for(const e of this.getRanges())if(!this._document._validateSelectionRange(e))throw new hn.b("document-selection-wrong-position: Range from document selection starts or ends at incorrect position.",this,{range:e})}),this.listenTo(this._model.markers,"update",()=>this._updateMarkers()),this.listenTo(this._document,"change",(e,t)=>{!function(e,t){const n=e.document.differ;for(const o of n.getChanges()){if("insert"!=o.type)continue;const n=o.position.parent;o.length===n.maxOffset&&e.enqueueChange(t,e=>{const t=Array.from(n.getAttributeKeys()).filter(e=>e.startsWith("selection:"));for(const o of t)e.removeAttribute(o,n)})}}(this._model,t)})}get isCollapsed(){return 0===this._ranges.length?this._document._getDefaultRange().isCollapsed:super.isCollapsed}get anchor(){return super.anchor||this._document._getDefaultRange().start}get focus(){return super.focus||this._document._getDefaultRange().end}get rangeCount(){return this._ranges.length?this._ranges.length:1}get hasOwnRange(){return this._ranges.length>0}get isGravityOverridden(){return!!this._overriddenGravityRegister.size}destroy(){for(let e=0;e{if(this._hasChangedRange=!0,t.root==this._document.graveyard){this._selectionRestorePosition=o.deletionPosition;const e=this._ranges.indexOf(t);this._ranges.splice(e,1),t.detach()}}),t}_updateMarkers(){const e=[];let t=!1;for(const t of this._model.markers){const n=t.getRange();for(const o of this.getRanges())n.containsRange(o,!o.isCollapsed)&&e.push(t)}const n=Array.from(this.markers);for(const n of e)this.markers.has(n)||(this.markers.add(n),t=!0);for(const n of Array.from(this.markers))e.includes(n)||(this.markers.remove(n),t=!0);t&&this.fire("change:marker",{oldMarkers:n,directChange:!1})}_updateAttributes(e){const t=Ln(this._getSurroundingAttributes()),n=Ln(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 o=[];for(const[e,t]of this.getAttributes())n.has(e)&&n.get(e)===t||o.push(e);for(const[e]of n)this.hasAttribute(e)||o.push(e);o.length>0&&this.fire("change:attribute",{attributeKeys:o,directChange:!1})}_setAttribute(e,t,n=!0){const o=n?"normal":"low";if("low"==o&&"normal"==this._attributePriority.get(e))return!1;return super.getAttribute(e)!==t&&(this._attrs.set(e,t),this._attributePriority.set(e,o),!0)}_removeAttribute(e,t=!0){const n=t?"normal":"low";return("low"!=n||"normal"!=this._attributePriority.get(e))&&(this._attributePriority.set(e,n),!!super.hasAttribute(e)&&(this._attrs.delete(e),!0))}_setAttributesTo(e){const t=new Set;for(const[t,n]of this.getAttributes())e.get(t)!==n&&this._removeAttribute(t,!1);for(const[n,o]of e){this._setAttribute(n,o,!1)&&t.add(n)}return t}*_getStoredAttributes(){const e=this.getFirstPosition().parent;if(this.isCollapsed&&e.isEmpty)for(const t of e.getAttributeKeys())if(t.startsWith("selection:")){const n=t.substr("selection:".length);yield[n,e.getAttribute(t)]}}_getSurroundingAttributes(){const e=this.getFirstPosition(),t=this._model.schema;let n=null;if(this.isCollapsed){const o=e.textNode?e.textNode:e.nodeBefore,i=e.textNode?e.textNode:e.nodeAfter;if(this.isGravityOverridden||(n=qs(o)),n||(n=qs(i)),!this.isGravityOverridden&&!n){let e=o;for(;e&&!t.isInline(e)&&!n;)e=e.previousSibling,n=qs(e)}if(!n){let e=i;for(;e&&!t.isInline(e)&&!n;)e=e.nextSibling,n=qs(e)}n||(n=this._getStoredAttributes())}else{const e=this.getFirstRange();for(const o of e){if(o.item.is("element")&&t.isObject(o.item))break;if("text"==o.type){n=o.item.getAttributes();break}}}return n}_fixGraveyardSelection(e){const t=this._model.schema.getNearestSelectionRange(e);t&&this._pushRange(t)}}function qs(e){return e instanceof ks||e instanceof ws?e.getAttributes():null}class Ws{constructor(e){this._dispatchers=e}add(e){for(const t of this._dispatchers)e(t);return this}}var $s=function(e){return en(e,5)};class Gs extends Ws{elementToElement(e){return this.add(function(e){return(e=$s(e)).view=Qs(e.view,"container"),t=>{var n;t.on("insert:"+e.model,(n=e.view,(e,t,o)=>{const i=n(t.item,o);if(!i)return;if(!o.consumable.consume(t.item,"insert"))return;const r=o.mapper.toViewPosition(t.range.start);o.mapper.bindElements(t.item,i),o.writer.insert(r,i)}),{priority:e.converterPriority||"normal"})}}(e))}attributeToElement(e){return this.add(function(e){e=$s(e);let t="attribute:"+(e.model.key?e.model.key:e.model);e.model.name&&(t+=":"+e.model.name);if(e.model.values)for(const t of e.model.values)e.view[t]=Qs(e.view[t],"attribute");else e.view=Qs(e.view,"attribute");const n=Js(e);return o=>{o.on(t,function(e){return(t,n,o)=>{const i=e(n.attributeOldValue,o),r=e(n.attributeNewValue,o);if(!i&&!r)return;if(!o.consumable.consume(n.item,t.name))return;const s=o.writer,a=s.document.selection;if(n.item instanceof Rs||n.item instanceof Us)s.wrap(a.getFirstRange(),r);else{let e=o.mapper.toViewRange(n.range);null!==n.attributeOldValue&&i&&(e=s.unwrap(e,i)),null!==n.attributeNewValue&&r&&s.wrap(e,r)}}}(n),{priority:e.converterPriority||"normal"})}}(e))}attributeToAttribute(e){return this.add(function(e){e=$s(e);let t="attribute:"+(e.model.key?e.model.key:e.model);e.model.name&&(t+=":"+e.model.name);if(e.model.values)for(const t of e.model.values)e.view[t]=Zs(e.view[t]);else e.view=Zs(e.view);const n=Js(e);return o=>{var i;o.on(t,(i=n,(e,t,n)=>{const o=i(t.attributeOldValue,n),r=i(t.attributeNewValue,n);if(!o&&!r)return;if(!n.consumable.consume(t.item,e.name))return;const s=n.mapper.toViewElement(t.item),a=n.writer;if(!s)throw new hn.b("conversion-attribute-to-attribute-on-text: Trying to convert text node's attribute with attribute-to-attribute converter.",[t,n]);if(null!==t.attributeOldValue&&o)if("class"==o.key){const e=Array.isArray(o.value)?o.value:[o.value];for(const t of e)a.removeClass(t,s)}else if("style"==o.key){const e=Object.keys(o.value);for(const t of e)a.removeStyle(t,s)}else a.removeAttribute(o.key,s);if(null!==t.attributeNewValue&&r)if("class"==r.key){const e=Array.isArray(r.value)?r.value:[r.value];for(const t of e)a.addClass(t,s)}else if("style"==r.key){const e=Object.keys(r.value);for(const t of e)a.setStyle(t,r.value[t],s)}else a.setAttribute(r.key,r.value,s)}),{priority:e.converterPriority||"normal"})}}(e))}markerToElement(e){return this.add(function(e){return(e=$s(e)).view=Qs(e.view,"ui"),t=>{var n;t.on("addMarker:"+e.model,(n=e.view,(e,t,o)=>{t.isOpening=!0;const i=n(t,o);t.isOpening=!1;const r=n(t,o);if(!i||!r)return;const s=t.markerRange;if(s.isCollapsed&&!o.consumable.consume(s,e.name))return;for(const t of s)if(!o.consumable.consume(t.item,e.name))return;const a=o.mapper,c=o.writer;c.insert(a.toViewPosition(s.start),i),o.mapper.bindElementToMarker(i,t.markerName),s.isCollapsed||(c.insert(a.toViewPosition(s.end),r),o.mapper.bindElementToMarker(r,t.markerName)),e.stop()}),{priority:e.converterPriority||"normal"}),t.on("removeMarker:"+e.model,(e.view,(e,t,n)=>{const o=n.mapper.markerNameToElements(t.markerName);if(o){for(const e of o)n.mapper.unbindElementFromMarkerName(e,t.markerName),n.writer.clear(n.writer.createRangeOn(e),e);n.writer.clearClonedElementsGroup(t.markerName),e.stop()}}),{priority:e.converterPriority||"normal"})}}(e))}markerToHighlight(e){return this.add(function(e){return t=>{var n;t.on("addMarker:"+e.model,(n=e.view,(e,t,o)=>{if(!t.item)return;if(!(t.item instanceof Rs||t.item instanceof Us||t.item.is("$textProxy")))return;const i=Xs(n,t,o);if(!i)return;if(!o.consumable.consume(t.item,e.name))return;const r=o.writer,s=Ys(r,i),a=r.document.selection;if(t.item instanceof Rs||t.item instanceof Us)r.wrap(a.getFirstRange(),s,a);else{const e=o.mapper.toViewRange(t.range),n=r.wrap(e,s);for(const e of n.getItems())if(e.is("attributeElement")&&e.isSimilar(s)){o.mapper.bindElementToMarker(e,t.markerName);break}}}),{priority:e.converterPriority||"normal"}),t.on("addMarker:"+e.model,function(e){return(t,n,o)=>{if(!n.item)return;if(!(n.item instanceof vs))return;const i=Xs(e,n,o);if(!i)return;if(!o.consumable.test(n.item,t.name))return;const r=o.mapper.toViewElement(n.item);if(r&&r.getCustomProperty("addHighlight")){o.consumable.consume(n.item,t.name);for(const e of Ss._createIn(n.item))o.consumable.consume(e.item,t.name);r.getCustomProperty("addHighlight")(r,i,o.writer),o.mapper.bindElementToMarker(r,n.markerName)}}}(e.view),{priority:e.converterPriority||"normal"}),t.on("removeMarker:"+e.model,function(e){return(t,n,o)=>{if(n.markerRange.isCollapsed)return;const i=Xs(e,n,o);if(!i)return;const r=Ys(o.writer,i),s=o.mapper.markerNameToElements(n.markerName);if(s){for(const e of s)o.mapper.unbindElementFromMarkerName(e,n.markerName),e.is("attributeElement")?o.writer.unwrap(o.writer.createRangeOn(e),r):e.getCustomProperty("removeHighlight")(e,i.id,o.writer);o.writer.clearClonedElementsGroup(n.markerName),t.stop()}}}(e.view),{priority:e.converterPriority||"normal"})}}(e))}markerToData(e){return this.add(function(e){const t=(e=$s(e)).model;e.view||(e.view=n=>({group:t,name:n.substr(e.model.length+1)}));return n=>{var o;n.on("addMarker:"+t,(o=e.view,(e,t,n)=>{const i=o(t.markerName,n);if(!i)return;const r=t.markerRange;n.consumable.consume(r,e.name)&&(Ks(r,!1,n,t,i),Ks(r,!0,n,t,i),e.stop())}),{priority:e.converterPriority||"normal"}),n.on("removeMarker:"+t,function(e){return(t,n,o)=>{const i=e(n.markerName,o);if(!i)return;const r=o.mapper.markerNameToElements(n.markerName);if(r){for(const e of r)o.mapper.unbindElementFromMarkerName(e,n.markerName),e.is("containerElement")?(s(`data-${i.group}-start-before`,e),s(`data-${i.group}-start-after`,e),s(`data-${i.group}-end-before`,e),s(`data-${i.group}-end-after`,e)):o.writer.clear(o.writer.createRangeOn(e),e);o.writer.clearClonedElementsGroup(n.markerName),t.stop()}function s(e,t){if(t.hasAttribute(e)){const n=new Set(t.getAttribute(e).split(","));n.delete(i.name),0==n.size?o.writer.removeAttribute(e,t):o.writer.setAttribute(e,Array.from(n).join(","),t)}}}}(e.view),{priority:e.converterPriority||"normal"})}}(e))}}function Ys(e,t){const n=e.createAttributeElement("span",t.attributes);return t.classes&&n._addClass(t.classes),t.priority&&(n._priority=t.priority),n._id=t.id,n}function Ks(e,t,n,o,i){const r=t?e.start:e.end;if(n.schema.checkChild(r,"$text")){!function(e,t,n,o,i){const r=`${i.group}-${t?"start":"end"}`,s=i.name?{name:i.name}:null,a=n.writer.createUIElement(r,s);n.writer.insert(e,a),n.mapper.bindElementToMarker(a,o.markerName)}(n.mapper.toViewPosition(r),t,n,o,i)}else{let e,s;t&&r.nodeAfter||!t&&!r.nodeBefore?(e=r.nodeAfter,s=!0):(e=r.nodeBefore,s=!1);!function(e,t,n,o,i,r){const s=`data-${r.group}-${t?"start":"end"}-${n?"before":"after"}`,a=e.hasAttribute(s)?e.getAttribute(s).split(","):[];a.unshift(r.name),o.writer.setAttribute(s,a.join(","),e),o.mapper.bindElementToMarker(e,i.markerName)}(n.mapper.toViewElement(e),t,s,n,o,i)}}function Qs(e,t){return"function"==typeof e?e:(n,o)=>function(e,t,n){"string"==typeof e&&(e={name:e});let o;const i=t.writer,r=Object.assign({},e.attributes);if("container"==n)o=i.createContainerElement(e.name,r);else if("attribute"==n){const t={priority:e.priority||si.DEFAULT_PRIORITY};o=i.createAttributeElement(e.name,r,t)}else o=i.createUIElement(e.name,r);if(e.styles){const t=Object.keys(e.styles);for(const n of t)i.setStyle(n,e.styles[n],o)}if(e.classes){const t=e.classes;if("string"==typeof t)i.addClass(t,o);else for(const e of t)i.addClass(e,o)}return o}(e,o,t)}function Js(e){return e.model.values?(t,n)=>{const o=e.view[t];return o?o(t,n):null}:e.view}function Zs(e){return"string"==typeof e?t=>({key:e,value:t}):"object"==typeof e?e.value?()=>e:t=>({key:e.key,value:t}):e}function Xs(e,t,n){const o="function"==typeof e?e(t,n):e;return o?(o.priority||(o.priority=10),o.id||(o.id=t.markerName),o):null}function ea(e){const{schema:t,document:n}=e.model;for(const o of n.getRootNames()){const i=n.getRoot(o);if(i.isEmpty&&!t.checkChild(i,"$text")&&t.checkChild(i,"paragraph"))return e.insertElement("paragraph",i),!0}return!1}function ta(e,t,n){const o=n.createContext(e);return!!n.checkChild(o,"paragraph")&&!!n.checkChild(o.push("paragraph"),t)}function na(e,t){const n=t.createElement("paragraph");return t.insert(n,e),t.createPositionAt(n,0)}class oa extends Ws{elementToElement(e){return this.add(ia(e))}elementToAttribute(e){return this.add(function(e){aa(e=$s(e));const t=ca(e,!1),n=ra(e.view),o=n?"element:"+n:"element";return n=>{n.on(o,t,{priority:e.converterPriority||"low"})}}(e))}attributeToAttribute(e){return this.add(function(e){e=$s(e);let t=null;("string"==typeof e.view||e.view.key)&&(t=function(e){"string"==typeof e.view&&(e.view={key:e.view});const t=e.view.key;let n;if("class"==t||"style"==t){n={["class"==t?"classes":"styles"]:e.view.value}}else{const o=void 0===e.view.value?/[\s\S]*/:e.view.value;n={attributes:{[t]:o}}}e.view.name&&(n.name=e.view.name);return e.view=n,t}(e));aa(e,t);const n=ca(e,!0);return t=>{t.on("element",n,{priority:e.converterPriority||"low"})}}(e))}elementToMarker(e){return console.warn(Object(hn.a)("upcast-helpers-element-to-marker-deprecated: The UpcastHelpers#elementToMarker() method was deprecated and will be removed in the near future. Please use UpcastHelpers#dataToMarker() instead.")),this.add(function(e){return function(e){const t=e.model;e.model=(e,n)=>{const o="string"==typeof t?t:t(e,n);return n.writer.createElement("$marker",{"data-name":o})}}(e=$s(e)),ia(e)}(e))}dataToMarker(e){return this.add(function(e){(e=$s(e)).model||(e.model=t=>t?e.view+":"+t:e.view);const t=sa(la(e,"start")),n=sa(la(e,"end"));return o=>{o.on("element:"+e.view+"-start",t,{priority:e.converterPriority||"normal"}),o.on("element:"+e.view+"-end",n,{priority:e.converterPriority||"normal"});const i=un.get("low"),r=un.get("highest"),s=un.get(e.converterPriority)/r;o.on("element",function(e){return(t,n,o)=>{const i="data-"+e.view;function r(t,i){for(const r of i){const i=e.model(r,o),s=o.writer.createElement("$marker",{"data-name":i});o.writer.insert(s,t),n.modelCursor.isEqual(t)?n.modelCursor=n.modelCursor.getShiftedBy(1):n.modelCursor=n.modelCursor._getTransformedByInsertion(t,1),n.modelRange=n.modelRange._getTransformedByInsertion(t,1)[0]}}n.modelRange||(n=Object.assign(n,o.convertChildren(n.viewItem,n.modelCursor))),o.consumable.consume(n.viewItem,{attributes:i+"-end-after"})&&r(n.modelRange.end,n.viewItem.getAttribute(i+"-end-after").split(",")),o.consumable.consume(n.viewItem,{attributes:i+"-start-after"})&&r(n.modelRange.end,n.viewItem.getAttribute(i+"-start-after").split(",")),o.consumable.consume(n.viewItem,{attributes:i+"-end-before"})&&r(n.modelRange.start,n.viewItem.getAttribute(i+"-end-before").split(",")),o.consumable.consume(n.viewItem,{attributes:i+"-start-before"})&&r(n.modelRange.start,n.viewItem.getAttribute(i+"-start-before").split(","))}}(e),{priority:i+s})}}(e))}}function ia(e){const t=sa(e=$s(e)),n=ra(e.view),o=n?"element:"+n:"element";return n=>{n.on(o,t,{priority:e.converterPriority||"normal"})}}function ra(e){return"string"==typeof e?e:"object"==typeof e&&"string"==typeof e.name?e.name:null}function sa(e){const t=new Vn(e.view);return(n,o,i)=>{const r=t.match(o.viewItem);if(!r)return;const s=r.match;if(s.name=!0,!i.consumable.test(o.viewItem,s))return;const a=function(e,t,n){return e instanceof Function?e(t,n):n.writer.createElement(e)}(e.model,o.viewItem,i);a&&i.safeInsert(a,o.modelCursor)&&(i.consumable.consume(o.viewItem,s),i.convertChildren(o.viewItem,a),i.updateConversionResult(a,o))}}function aa(e,t=null){const n=null===t||(e=>e.getAttribute(t)),o="object"!=typeof e.model?e.model:e.model.key,i="object"!=typeof e.model||void 0===e.model.value?n:e.model.value;e.model={key:o,value:i}}function ca(e,t){const n=new Vn(e.view);return(o,i,r)=>{const s=n.match(i.viewItem);if(!s)return;const a=e.model.key,c="function"==typeof e.model.value?e.model.value(i.viewItem,r):e.model.value;if(null===c)return;if(!function(e,t){const n="function"==typeof e?e(t):e;if("object"==typeof n&&!ra(n))return!1;return!n.classes&&!n.attributes&&!n.styles}(e.view,i.viewItem)?delete s.match.name:s.match.name=!0,!r.consumable.test(i.viewItem,s.match))return;i.modelRange||(i=Object.assign(i,r.convertChildren(i.viewItem,i.modelCursor)));(function(e,t,n,o){let i=!1;for(const r of Array.from(e.getItems({shallow:n})))o.schema.checkAttribute(r,t.key)&&(o.writer.setAttribute(t.key,t.value,r),i=!0);return i})(i.modelRange,{key:a,value:c},t,r)&&r.consumable.consume(i.viewItem,s.match)}}function la(e,t){const n={};return n.view=e.view+"-"+t,n.model=(t,n)=>{const o=t.getAttribute("name"),i=e.model(o,n);return n.writer.createElement("$marker",{"data-name":i})},n}class da{constructor(e,t){this.model=e,this.view=new ps(t),this.mapper=new Es,this.downcastDispatcher=new Ns({mapper:this.mapper,schema:e.schema});const n=this.model.document,o=n.selection,i=this.model.markers;this.listenTo(this.model,"_beforeChanges",()=>{this.view._disableRendering(!0)},{priority:"highest"}),this.listenTo(this.model,"_afterChanges",()=>{this.view._disableRendering(!1)},{priority:"lowest"}),this.listenTo(n,"change",()=>{this.view.change(e=>{this.downcastDispatcher.convertChanges(n.differ,i,e),this.downcastDispatcher.convertSelection(o,i,e)})},{priority:"low"}),this.listenTo(this.view.document,"selectionChange",function(e,t){return(n,o)=>{const i=o.newSelection,r=[];for(const e of i.getRanges())r.push(t.toModelRange(e));const s=e.createSelection(r,{backward:i.isBackward});s.isEqual(e.document.selection)||e.change(e=>{e.setSelection(s)})}}(this.model,this.mapper)),this.downcastDispatcher.on("insert:$text",(e,t,n)=>{if(!n.consumable.consume(t.item,"insert"))return;const o=n.writer,i=n.mapper.toViewPosition(t.range.start),r=o.createText(t.item.data);o.insert(i,r)},{priority:"lowest"}),this.downcastDispatcher.on("remove",(e,t,n)=>{const o=n.mapper.toViewPosition(t.position),i=t.position.getShiftedBy(t.length),r=n.mapper.toViewPosition(i,{isPhantom:!0}),s=n.writer.createRange(o,r),a=n.writer.remove(s.getTrimmed());for(const e of n.writer.createRangeIn(a).getItems())n.mapper.unbindViewElement(e)},{priority:"low"}),this.downcastDispatcher.on("selection",(e,t,n)=>{const o=n.writer,i=o.document.selection;for(const e of i.getRanges())e.isCollapsed&&e.end.parent.isAttached()&&n.writer.mergeAttributes(e.start);o.setSelection(null)},{priority:"low"}),this.downcastDispatcher.on("selection",(e,t,n)=>{const o=t.selection;if(o.isCollapsed)return;if(!n.consumable.consume(o,"selection"))return;const i=[];for(const e of o.getRanges()){const t=n.mapper.toViewRange(e);i.push(t)}n.writer.setSelection(i,{backward:o.isBackward})},{priority:"low"}),this.downcastDispatcher.on("selection",(e,t,n)=>{const o=t.selection;if(!o.isCollapsed)return;if(!n.consumable.consume(o,"selection"))return;const i=n.writer,r=o.getFirstPosition(),s=n.mapper.toViewPosition(r),a=i.breakAttributes(s);i.setSelection(a)},{priority:"low"}),this.view.document.roots.bindTo(this.model.document.roots).using(e=>{if("$graveyard"==e.rootName)return null;const t=new Jo(this.view.document,e.name);return t.rootName=e.rootName,this.mapper.bindElements(e,t),t})}destroy(){this.view.destroy(),this.stopListening()}}xn(da,Ho);class ua{constructor(){this._commands=new Map}add(e,t){this._commands.set(e,t)}get(e){return this._commands.get(e)}execute(e,...t){const n=this.get(e);if(!n)throw new hn.b("commandcollection-command-not-found: Command does not exist.",this,{commandName:e});return n.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()}}class ha{constructor(){this._consumables=new Map}add(e,t){let n;e.is("$text")||e.is("documentFragment")?this._consumables.set(e,!0):(this._consumables.has(e)?n=this._consumables.get(e):(n=new fa(e),this._consumables.set(e,n)),n.add(t))}test(e,t){const n=this._consumables.get(e);return void 0===n?null:e.is("$text")||e.is("documentFragment")?n:n.test(t)}consume(e,t){return!!this.test(e,t)&&(e.is("$text")||e.is("documentFragment")?this._consumables.set(e,!1):this._consumables.get(e).consume(t),!0)}revert(e,t){const n=this._consumables.get(e);void 0!==n&&(e.is("$text")||e.is("documentFragment")?this._consumables.set(e,!0):n.revert(t))}static consumablesFromElement(e){const t={element:e,name:!0,attributes:[],classes:[],styles:[]},n=e.getAttributeKeys();for(const e of n)"style"!=e&&"class"!=e&&t.attributes.push(e);const o=e.getClassNames();for(const e of o)t.classes.push(e);const i=e.getStyleNames();for(const e of i)t.styles.push(e);return t}static createFrom(e,t){if(t||(t=new ha(e)),e.is("$text"))return t.add(e),t;e.is("element")&&t.add(e,ha.consumablesFromElement(e)),e.is("documentFragment")&&t.add(e);for(const n of e.getChildren())t=ha.createFrom(n,t);return t}}class fa{constructor(e){this.element=e,this._canConsumeName=null,this._consumables={attributes:new Map,styles:new Map,classes:new Map}}add(e){e.name&&(this._canConsumeName=!0);for(const t in 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 n=this._test(t,e[t]);if(!0!==n)return n}return!0}consume(e){e.name&&(this._canConsumeName=!1);for(const t in this._consumables)t in e&&this._consume(t,e[t])}revert(e){e.name&&(this._canConsumeName=!0);for(const t in this._consumables)t in e&&this._revert(t,e[t])}_add(e,t){const n=De(t)?t:[t],o=this._consumables[e];for(const t of n){if("attributes"===e&&("class"===t||"style"===t))throw new hn.b("viewconsumable-invalid-attribute: Classes and styles should be handled separately.",this);if(o.set(t,!0),"styles"===e)for(const e of this.element.document.stylesProcessor.getRelatedStyles(t))o.set(e,!0)}}_test(e,t){const n=De(t)?t:[t],o=this._consumables[e];for(const t of n)if("attributes"!==e||"class"!==t&&"style"!==t){const e=o.get(t);if(void 0===e)return null;if(!e)return!1}else{const e="class"==t?"classes":"styles",n=this._test(e,[...this._consumables[e].keys()]);if(!0!==n)return n}return!0}_consume(e,t){const n=De(t)?t:[t],o=this._consumables[e];for(const t of n)if("attributes"!==e||"class"!==t&&"style"!==t){if(o.set(t,!1),"styles"==e)for(const e of this.element.document.stylesProcessor.getRelatedStyles(t))o.set(e,!1)}else{const e="class"==t?"classes":"styles";this._consume(e,[...this._consumables[e].keys()])}}_revert(e,t){const n=De(t)?t:[t],o=this._consumables[e];for(const t of n)if("attributes"!==e||"class"!==t&&"style"!==t){!1===o.get(t)&&o.set(t,!0)}else{const e="class"==t?"classes":"styles";this._revert(e,[...this._consumables[e].keys()])}}}class ma{constructor(){this._sourceDefinitions={},this._attributeProperties={},this.decorate("checkChild"),this.decorate("checkAttribute"),this.on("checkAttribute",(e,t)=>{t[0]=new ga(t[0])},{priority:"highest"}),this.on("checkChild",(e,t)=>{t[0]=new ga(t[0]),t[1]=this.getDefinition(t[1])},{priority:"highest"})}register(e,t){if(this._sourceDefinitions[e])throw new hn.b("schema-cannot-register-item-twice: A single item cannot be registered twice in the schema.",this,{itemName:e});this._sourceDefinitions[e]=[Object.assign({},t)],this._clearCache()}extend(e,t){if(!this._sourceDefinitions[e])throw new hn.b("schema-cannot-extend-missing-item: Cannot extend an item which was not registered yet.",this,{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||t.isLimit&&t.isSelectable&&t.isContent)}isInline(e){const t=this.getDefinition(e);return!(!t||!t.isInline)}isSelectable(e){const t=this.getDefinition(e);return!!t&&!(!t.isSelectable&&!t.isObject)}isContent(e){const t=this.getDefinition(e);return!!t&&!(!t.isContent&&!t.isObject)}checkChild(e,t){return!!t&&this._checkContextMatch(t,e)}checkAttribute(e,t){const n=this.getDefinition(e.last);return!!n&&n.allowAttributes.includes(t)}checkMerge(e,t=null){if(e instanceof As){const t=e.nodeBefore,n=e.nodeAfter;if(!(t instanceof vs))throw new hn.b("schema-check-merge-no-element-before: The node before the merge position must be an element.",this);if(!(n instanceof vs))throw new hn.b("schema-check-merge-no-element-after: The node after the merge position must be an element.",this);return this.checkMerge(t,n)}for(const n of t.getChildren())if(!this.checkChild(e,n))return!1;return!0}addChildCheck(e){this.on("checkChild",(t,[n,o])=>{if(!o)return;const i=e(n,o);"boolean"==typeof i&&(t.stop(),t.return=i)},{priority:"high"})}addAttributeCheck(e){this.on("checkAttribute",(t,[n,o])=>{const i=e(n,o);"boolean"==typeof i&&(t.stop(),t.return=i)},{priority:"high"})}setAttributeProperties(e,t){this._attributeProperties[e]=Object.assign(this.getAttributeProperties(e),t)}getAttributeProperties(e){return this._attributeProperties[e]||{}}getLimitElement(e){let t;if(e instanceof As)t=e.parent;else{t=(e instanceof Ss?[e]:Array.from(e.getRanges())).reduce((e,t)=>{const n=t.getCommonAncestor();return e?e.getCommonAncestor(n,{includeSelf:!0}):n},null)}for(;!this.isLimit(t)&&t.parent;)t=t.parent;return t}checkAttributeInSelection(e,t){if(e.isCollapsed){const n=[...e.getFirstPosition().getAncestors(),new ws("",e.getAttributes())];return this.checkAttribute(n,t)}{const n=e.getRanges();for(const e of n)for(const n of e)if(this.checkAttribute(n.item,t))return!0}return!1}*getValidRanges(e,t){e=function*(e){for(const t of e)yield*t.getMinimalFlatRanges()}(e);for(const n of e)yield*this._getValidRangesForRange(n,t)}getNearestSelectionRange(e,t="both"){if(this.checkChild(e,"$text"))return new Ss(e);let n,o;const i=e.getAncestors().reverse().find(e=>this.isLimit(e))||e.root;"both"!=t&&"backward"!=t||(n=new ys({boundaries:Ss._createIn(i),startPosition:e,direction:"backward"})),"both"!=t&&"forward"!=t||(o=new ys({boundaries:Ss._createIn(i),startPosition:e}));for(const e of function*(e,t){let n=!1;for(;!n;){if(n=!0,e){const t=e.next();t.done||(n=!1,yield{walker:e,value:t.value})}if(t){const e=t.next();e.done||(n=!1,yield{walker:t,value:e.value})}}}(n,o)){const t=e.walker==n?"elementEnd":"elementStart",o=e.value;if(o.type==t&&this.isObject(o.item))return Ss._createOn(o.item);if(this.checkChild(o.nextPosition,"$text"))return new Ss(o.nextPosition)}return null}findAllowedParent(e,t){let n=e.parent;for(;n;){if(this.checkChild(n,t))return n;if(this.isLimit(n))return null;n=n.parent}return null}removeDisallowedAttributes(e,t){for(const n of e)if(n.is("$text"))Ta(this,n,t);else{const e=Ss._createIn(n).getPositions();for(const n of e){Ta(this,n.nodeBefore||n.parent,t)}}}createContext(e){return new ga(e)}_clearCache(){this._compiledDefinitions=null}_compile(){const e={},t=this._sourceDefinitions,n=Object.keys(t);for(const o of n)e[o]=pa(t[o],o);for(const t of n)ba(e,t);for(const t of n)wa(e,t);for(const t of n)ka(e,t),_a(e,t);for(const t of n)va(e,t),ya(e,t);this._compiledDefinitions=e}_checkContextMatch(e,t,n=t.length-1){const o=t.getItem(n);if(e.allowIn.includes(o.name)){if(0==n)return!0;{const e=this.getDefinition(o);return this._checkContextMatch(e,t,n-1)}}return!1}*_getValidRangesForRange(e,t){let n=e.start,o=e.start;for(const i of e.getItems({shallow:!0}))i.is("element")&&(yield*this._getValidRangesForRange(Ss._createIn(i),t)),this.checkAttribute(i,t)||(n.isEqual(o)||(yield new Ss(n,o)),n=As._createAfter(i)),o=As._createAfter(i);n.isEqual(o)||(yield new Ss(n,o))}}xn(ma,Ho);class ga{constructor(e){if(e instanceof ga)return e;"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(Ca)}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 ga([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)}startsWith(e){return Array.from(this.getNames()).join(" ").startsWith(e)}}function pa(e,t){const n={name:t,allowIn:[],allowContentOf:[],allowWhere:[],allowAttributes:[],allowAttributesOf:[],inheritTypesFrom:[]};return function(e,t){for(const n of e){const e=Object.keys(n).filter(e=>e.startsWith("is"));for(const o of e)t[o]=n[o]}}(e,n),xa(e,n,"allowIn"),xa(e,n,"allowContentOf"),xa(e,n,"allowWhere"),xa(e,n,"allowAttributes"),xa(e,n,"allowAttributesOf"),xa(e,n,"inheritTypesFrom"),function(e,t){for(const n of e){const e=n.inheritAllFrom;e&&(t.allowContentOf.push(e),t.allowWhere.push(e),t.allowAttributesOf.push(e),t.inheritTypesFrom.push(e))}}(e,n),n}function ba(e,t){for(const n of e[t].allowContentOf)if(e[n]){Aa(e,n).forEach(e=>{e.allowIn.push(t)})}delete e[t].allowContentOf}function wa(e,t){for(const n of e[t].allowWhere){const o=e[n];if(o){const n=o.allowIn;e[t].allowIn.push(...n)}}delete e[t].allowWhere}function ka(e,t){for(const n of e[t].allowAttributesOf){const o=e[n];if(o){const n=o.allowAttributes;e[t].allowAttributes.push(...n)}}delete e[t].allowAttributesOf}function _a(e,t){const n=e[t];for(const t of n.inheritTypesFrom){const o=e[t];if(o){const e=Object.keys(o).filter(e=>e.startsWith("is"));for(const t of e)t in n||(n[t]=o[t])}}delete n.inheritTypesFrom}function va(e,t){const n=e[t],o=n.allowIn.filter(t=>e[t]);n.allowIn=Array.from(new Set(o))}function ya(e,t){const n=e[t];n.allowAttributes=Array.from(new Set(n.allowAttributes))}function xa(e,t,n){for(const o of e)"string"==typeof o[n]?t[n].push(o[n]):Array.isArray(o[n])&&t[n].push(...o[n])}function Aa(e,t){const n=e[t];return(o=e,Object.keys(o).map(e=>o[e])).filter(e=>e.allowIn.includes(n.name));var o}function Ca(e){return"string"==typeof e?{name:e,*getAttributeKeys(){},getAttribute(){}}:{name:e.is("element")?e.name:"$text",*getAttributeKeys(){yield*e.getAttributeKeys()},getAttribute:t=>e.getAttribute(t)}}function Ta(e,t,n){for(const o of t.getAttributeKeys())e.checkAttribute(t,o)||n.removeAttribute(o,t)}class Pa{constructor(e={}){this._splitParts=new Map,this._cursorParents=new Map,this._modelCursor=null,this.conversionApi=Object.assign({},e),this.conversionApi.convertItem=this._convertItem.bind(this),this.conversionApi.convertChildren=this._convertChildren.bind(this),this.conversionApi.safeInsert=this._safeInsert.bind(this),this.conversionApi.updateConversionResult=this._updateConversionResult.bind(this),this.conversionApi.splitToAllowedParent=this._splitToAllowedParent.bind(this),this.conversionApi.getSplitParts=this._getSplitParts.bind(this)}convert(e,t,n=["$root"]){this.fire("viewCleanup",e),this._modelCursor=function(e,t){let n;for(const o of new ga(e)){const e={};for(const t of o.getAttributeKeys())e[t]=o.getAttribute(t);const i=t.createElement(o.name,e);n&&t.append(i,n),n=As._createAt(i,0)}return n}(n,t),this.conversionApi.writer=t,this.conversionApi.consumable=ha.createFrom(e),this.conversionApi.store={};const{modelRange:o}=this._convertItem(e,this._modelCursor),i=t.createDocumentFragment();if(o){this._removeEmptyElements();for(const e of Array.from(this._modelCursor.parent.getChildren()))t.append(e,i);i.markers=function(e,t){const n=new Set,o=new Map,i=Ss._createIn(e).getItems();for(const e of i)"$marker"==e.name&&n.add(e);for(const e of n){const n=e.getAttribute("data-name"),i=t.createPositionBefore(e);o.has(n)?o.get(n).end=i.clone():o.set(n,new Ss(i.clone())),t.remove(e)}return o}(i,t)}return this._modelCursor=null,this._splitParts.clear(),this._cursorParents.clear(),this.conversionApi.writer=null,this.conversionApi.store=null,i}_convertItem(e,t){const n=Object.assign({viewItem:e,modelCursor:t,modelRange:null});if(e.is("element")?this.fire("element:"+e.name,n,this.conversionApi):e.is("$text")?this.fire("text",n,this.conversionApi):this.fire("documentFragment",n,this.conversionApi),n.modelRange&&!(n.modelRange instanceof Ss))throw new hn.b("view-conversion-dispatcher-incorrect-result: Incorrect conversion result was dropped.",this);return{modelRange:n.modelRange,modelCursor:n.modelCursor}}_convertChildren(e,t){let n=t.is("position")?t:As._createAt(t,0);const o=new Ss(n);for(const t of Array.from(e.getChildren())){const e=this._convertItem(t,n);e.modelRange instanceof Ss&&(o.end=e.modelRange.end,n=e.modelCursor)}return{modelRange:o,modelCursor:n}}_safeInsert(e,t){const n=this._splitToAllowedParent(e,t);return!!n&&(this.conversionApi.writer.insert(e,n.position),!0)}_updateConversionResult(e,t){const n=this._getSplitParts(e),o=this.conversionApi.writer;t.modelRange||(t.modelRange=o.createRange(o.createPositionBefore(e),o.createPositionAfter(n[n.length-1])));const i=this._cursorParents.get(e);t.modelCursor=i?o.createPositionAt(i,0):t.modelRange.end}_splitToAllowedParent(e,t){const{schema:n,writer:o}=this.conversionApi;let i=n.findAllowedParent(t,e);if(i){if(i===t.parent)return{position:t};this._modelCursor.parent.getAncestors().includes(i)&&(i=null)}if(!i)return ta(t,e,n)?{position:na(t,o)}:null;const r=this.conversionApi.writer.split(t,i),s=[];for(const e of r.range.getWalker())if("elementEnd"==e.type)s.push(e.item);else{const t=s.pop(),n=e.item;this._registerSplitPair(t,n)}const a=r.range.end.parent;return this._cursorParents.set(e,a),{position:r.position,cursorParent:a}}_registerSplitPair(e,t){this._splitParts.has(e)||this._splitParts.set(e,[e]);const n=this._splitParts.get(e);this._splitParts.set(t,n),n.push(t)}_getSplitParts(e){let t;return t=this._splitParts.has(e)?this._splitParts.get(e):[e],t}_removeEmptyElements(){let e=!1;for(const t of this._splitParts.keys())t.isEmpty&&(this.conversionApi.writer.remove(t),this._splitParts.delete(t),e=!0);e&&this._removeEmptyElements()}}xn(Pa,gn);class Sa{constructor(e,t){this.model=e,this.stylesProcessor=t,this.processor,this.mapper=new Es,this.downcastDispatcher=new Ns({mapper:this.mapper,schema:e.schema}),this.downcastDispatcher.on("insert:$text",(e,t,n)=>{if(!n.consumable.consume(t.item,"insert"))return;const o=n.writer,i=n.mapper.toViewPosition(t.range.start),r=o.createText(t.item.data);o.insert(i,r)},{priority:"lowest"}),this.upcastDispatcher=new Pa({schema:e.schema}),this.viewDocument=new ri(t),this._viewWriter=new Ei(this.viewDocument),this.upcastDispatcher.on("text",(e,t,{schema:n,consumable:o,writer:i})=>{let r=t.modelCursor;if(!o.test(t.viewItem))return;if(!n.checkChild(r,"$text")){if(!ta(r,"$text",n))return;r=na(r,i)}o.consume(t.viewItem);const s=i.createText(t.viewItem.data);i.insert(s,r),t.modelRange=i.createRange(r,r.getShiftedBy(s.offsetSize)),t.modelCursor=t.modelRange.end},{priority:"lowest"}),this.upcastDispatcher.on("element",(e,t,n)=>{if(!t.modelRange&&n.consumable.consume(t.viewItem,{name:!0})){const{modelRange:e,modelCursor:o}=n.convertChildren(t.viewItem,t.modelCursor);t.modelRange=e,t.modelCursor=o}},{priority:"lowest"}),this.upcastDispatcher.on("documentFragment",(e,t,n)=>{if(!t.modelRange&&n.consumable.consume(t.viewItem,{name:!0})){const{modelRange:e,modelCursor:o}=n.convertChildren(t.viewItem,t.modelCursor);t.modelRange=e,t.modelCursor=o}},{priority:"lowest"}),this.decorate("init"),this.decorate("set"),this.on("init",()=>{this.fire("ready")},{priority:"lowest"}),this.on("ready",()=>{this.model.enqueueChange("transparent",ea)},{priority:"lowest"})}get(e={}){const{rootName:t="main",trim:n="empty"}=e;if(!this._checkIfRootsExists([t]))throw new hn.b("datacontroller-get-non-existent-root: Attempting to get data from a non-existing root.",this);const o=this.model.document.getRoot(t);return"empty"!==n||this.model.hasContent(o,{ignoreWhitespaces:!0})?this.stringify(o,e):""}stringify(e,t){const n=this.toView(e,t);return this.processor.toData(n)}toView(e,t){const n=this.viewDocument,o=this._viewWriter;this.mapper.clearBindings();const i=Ss._createIn(e),r=new Si(n);if(this.mapper.bindElements(e,r),this.downcastDispatcher.conversionApi.options=t,this.downcastDispatcher.convertInsert(i,o),!e.is("documentFragment")){const t=function(e){const t=[],n=e.root.document;if(!n)return[];const o=Ss._createIn(e);for(const e of n.model.markers){const n=o.getIntersection(e.getRange());n&&t.push([e.name,n])}return t}(e);for(const[e,n]of t)this.downcastDispatcher.convertMarkerAdd(e,n,o)}return delete this.downcastDispatcher.conversionApi.options,r}init(e){if(this.model.document.version)throw new hn.b("datacontroller-init-document-not-empty: Trying to set initial data to not empty document.",this);let t={};if("string"==typeof e?t.main=e:t=e,!this._checkIfRootsExists(Object.keys(t)))throw new hn.b("datacontroller-init-non-existent-root: Attempting to init data on a non-existing root.",this);return this.model.enqueueChange("transparent",e=>{for(const n of Object.keys(t)){const o=this.model.document.getRoot(n);e.insert(this.parse(t[n],o),o,0)}}),Promise.resolve()}set(e){let t={};if("string"==typeof e?t.main=e:t=e,!this._checkIfRootsExists(Object.keys(t)))throw new hn.b("datacontroller-set-non-existent-root: Attempting to set data on a non-existing root.",this);this.model.enqueueChange("transparent",e=>{e.setSelection(null),e.removeSelectionAttribute(this.model.document.selection.getAttributeKeys());for(const n of Object.keys(t)){const o=this.model.document.getRoot(n);e.remove(e.createRangeIn(o)),e.insert(this.parse(t[n],o),o,0)}})}parse(e,t="$root"){const n=this.processor.toView(e);return this.toModel(n,t)}toModel(e,t="$root"){return this.model.change(n=>this.upcastDispatcher.convert(e,n,t))}addStyleProcessorRules(e){e(this.stylesProcessor)}destroy(){this.stopListening()}_checkIfRootsExists(e){for(const t of e)if(!this.model.document.getRootNames().includes(t))return!1;return!0}}xn(Sa,Ho);class Ea{constructor(e,t){this._helpers=new Map,this._downcast=Array.isArray(e)?e:[e],this._createConversionHelpers({name:"downcast",dispatchers:this._downcast,isDowncast:!0}),this._upcast=Array.isArray(t)?t:[t],this._createConversionHelpers({name:"upcast",dispatchers:this._upcast,isDowncast:!1})}addAlias(e,t){const n=this._downcast.includes(t);if(!this._upcast.includes(t)&&!n)throw new hn.b("conversion-add-alias-dispatcher-not-registered: Trying to register and alias for a dispatcher that nas not been registered.",this);this._createConversionHelpers({name:e,dispatchers:[t],isDowncast:n})}for(e){if(!this._helpers.has(e))throw new hn.b("conversion-for-unknown-group: Trying to add a converter to an unknown dispatchers group.",this);return this._helpers.get(e)}elementToElement(e){this.for("downcast").elementToElement(e);for(const{model:t,view:n}of Ma(e))this.for("upcast").elementToElement({model:t,view:n,converterPriority:e.converterPriority})}attributeToElement(e){this.for("downcast").attributeToElement(e);for(const{model:t,view:n}of Ma(e))this.for("upcast").elementToAttribute({view:n,model:t,converterPriority:e.converterPriority})}attributeToAttribute(e){this.for("downcast").attributeToAttribute(e);for(const{model:t,view:n}of Ma(e))this.for("upcast").attributeToAttribute({view:n,model:t})}_createConversionHelpers({name:e,dispatchers:t,isDowncast:n}){if(this._helpers.has(e))throw new hn.b("conversion-group-exists: Trying to register a group name that has already been registered.",this);const o=n?new Gs(t):new oa(t);this._helpers.set(e,o)}}function*Ma(e){if(e.model.values)for(const t of e.model.values){const n={key:e.model.key,value:t},o=e.view[t],i=e.upcastAlso?e.upcastAlso[t]:void 0;yield*Ia(n,o,i)}else yield*Ia(e.model,e.view,e.upcastAlso)}function*Ia(e,t,n){if(yield{model:e,view:t},n){n=Array.isArray(n)?n:[n];for(const t of n)yield{model:e,view:t}}}class Na{constructor(e="default"){this.operations=[],this.type=e}get baseVersion(){for(const e of this.operations)if(null!==e.baseVersion)return e.baseVersion;return null}addOperation(e){return e.batch=this,this.operations.push(e),e}}class Oa{constructor(e){this.baseVersion=e,this.isDocumentOperation=null!==this.baseVersion,this.batch=null}_validate(){}toJSON(){const e=Object.assign({},this);return e.__className=this.constructor.className,delete e.batch,delete e.isDocumentOperation,e}static get className(){return"Operation"}static fromJSON(e){return new this(e.baseVersion)}}class Ra{constructor(e){this.markers=new Map,this._children=new _s,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||"model: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 n of e)t=t.getChild(t.offsetToIndex(n));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 n of e)n.name?t.push(vs.fromJSON(n)):t.push(ws.fromJSON(n));return new Ra(t)}_appendChild(e){this._insertChild(this.childCount,e)}_insertChild(e,t){const n=function(e){if("string"==typeof e)return[new ws(e)];yn(e)||(e=[e]);return Array.from(e).map(e=>"string"==typeof e?new ws(e):e instanceof ks?new ws(e.data,e.getAttributes()):e)}(t);for(const e of n)null!==e.parent&&e._remove(),e.parent=this;this._children._insertNodes(e,n)}_removeChildren(e,t=1){const n=this._children._removeNodes(e,t);for(const e of n)e.parent=null;return n}}function Da(e,t){const n=(t=ja(t)).reduce((e,t)=>e+t.offsetSize,0),o=e.parent;Ba(e);const i=e.index;return o._insertChild(i,t),za(o,i+t.length),za(o,i),new Ss(e,e.getShiftedBy(n))}function La(e){if(!e.isFlat)throw new hn.b("operation-utils-remove-range-not-flat: Trying to remove a range which starts and ends in different element.",this);const t=e.start.parent;Ba(e.start),Ba(e.end);const n=t._removeChildren(e.start.index,e.end.index-e.start.index);return za(t,e.start.index),n}function Va(e,t){if(!e.isFlat)throw new hn.b("operation-utils-move-range-not-flat: Trying to move a range which starts and ends in different element.",this);const n=La(e);return Da(t=t._getTransformedByDeletion(e.start,e.end.offset-e.start.offset),n)}function ja(e){const t=[];e instanceof Array||(e=[e]);for(let n=0;ne.maxOffset)throw new hn.b("move-operation-nodes-do-not-exist: The nodes which should be moved do not exist.",this);if(e===t&&n=n&&this.targetPosition.path[e]e._clone(!0))),t=new $a(this.position,e,this.baseVersion);return t.shouldReceiveAttributes=this.shouldReceiveAttributes,t}getReversed(){const e=this.position.root.document.graveyard,t=new As(e,[0]);return new Wa(this.position,this.nodes.maxOffset,t,this.baseVersion+1)}_validate(){const e=this.position.parent;if(!e||e.maxOffsete._clone(!0))),Da(this.position,e)}toJSON(){const e=super.toJSON();return e.position=this.position.toJSON(),e.nodes=this.nodes.toJSON(),e}static get className(){return"InsertOperation"}static fromJSON(e,t){const n=[];for(const t of e.nodes)t.name?n.push(vs.fromJSON(t)):n.push(ws.fromJSON(t));const o=new $a(As.fromJSON(e.position,t),n,e.baseVersion);return o.shouldReceiveAttributes=e.shouldReceiveAttributes,o}}class Ga extends Oa{constructor(e,t,n,o,i,r){super(r),this.name=e,this.oldRange=t?t.clone():null,this.newRange=n?n.clone():null,this.affectsData=i,this._markers=o}get type(){return"marker"}clone(){return new Ga(this.name,this.oldRange,this.newRange,this._markers,this.affectsData,this.baseVersion)}getReversed(){return new Ga(this.name,this.newRange,this.oldRange,this._markers,this.affectsData,this.baseVersion+1)}_execute(){const e=this.newRange?"_set":"_remove";this._markers[e](this.name,this.newRange,!0,this.affectsData)}toJSON(){const e=super.toJSON();return this.oldRange&&(e.oldRange=this.oldRange.toJSON()),this.newRange&&(e.newRange=this.newRange.toJSON()),delete e._markers,e}static get className(){return"MarkerOperation"}static fromJSON(e,t){return new Ga(e.name,e.oldRange?Ss.fromJSON(e.oldRange,t):null,e.newRange?Ss.fromJSON(e.newRange,t):null,t.model.markers,e.affectsData,e.baseVersion)}}class Ya extends Oa{constructor(e,t,n,o){super(o),this.position=e,this.position.stickiness="toNext",this.oldName=t,this.newName=n}get type(){return"rename"}clone(){return new Ya(this.position.clone(),this.oldName,this.newName,this.baseVersion)}getReversed(){return new Ya(this.position.clone(),this.newName,this.oldName,this.baseVersion+1)}_validate(){const e=this.position.nodeAfter;if(!(e instanceof vs))throw new hn.b("rename-operation-wrong-position: Given position is invalid or node after it is not an instance of Element.",this);if(e.name!==this.oldName)throw new hn.b("rename-operation-wrong-name: Element to change has different name than operation's old name.",this)}_execute(){this.position.nodeAfter.name=this.newName}toJSON(){const e=super.toJSON();return e.position=this.position.toJSON(),e}static get className(){return"RenameOperation"}static fromJSON(e,t){return new Ya(As.fromJSON(e.position,t),e.oldName,e.newName,e.baseVersion)}}class Ka extends Oa{constructor(e,t,n,o,i){super(i),this.root=e,this.key=t,this.oldValue=n,this.newValue=o}get type(){return null===this.oldValue?"addRootAttribute":null===this.newValue?"removeRootAttribute":"changeRootAttribute"}clone(){return new Ka(this.root,this.key,this.oldValue,this.newValue,this.baseVersion)}getReversed(){return new Ka(this.root,this.key,this.newValue,this.oldValue,this.baseVersion+1)}_validate(){if(this.root!=this.root.root||this.root.is("documentFragment"))throw new hn.b("rootattribute-operation-not-a-root: The element to change is not a root element.",this,{root:this.root,key:this.key});if(null!==this.oldValue&&this.root.getAttribute(this.key)!==this.oldValue)throw new hn.b("rootattribute-operation-wrong-old-value: Changed node has different attribute value than operation's old attribute value.",this,{root:this.root,key:this.key});if(null===this.oldValue&&null!==this.newValue&&this.root.hasAttribute(this.key))throw new hn.b("rootattribute-operation-attribute-exists: The attribute with given key already exists.",this,{root:this.root,key:this.key})}_execute(){null!==this.newValue?this.root._setAttribute(this.key,this.newValue):this.root._removeAttribute(this.key)}toJSON(){const e=super.toJSON();return e.root=this.root.toJSON(),e}static get className(){return"RootAttributeOperation"}static fromJSON(e,t){if(!t.getRoot(e.root))throw new hn.b("rootattribute-operation-fromjson-no-root: Cannot create RootAttributeOperation. Root with specified name does not exist.",this,{rootName:e.root});return new Ka(t.getRoot(e.root),e.key,e.oldValue,e.newValue,e.baseVersion)}}class Qa extends Oa{constructor(e,t,n,o,i){super(i),this.sourcePosition=e.clone(),this.sourcePosition.stickiness="toPrevious",this.howMany=t,this.targetPosition=n.clone(),this.targetPosition.stickiness="toNext",this.graveyardPosition=o.clone()}get type(){return"merge"}get deletionPosition(){return new As(this.sourcePosition.root,this.sourcePosition.path.slice(0,-1))}get movedRange(){const e=this.sourcePosition.getShiftedBy(Number.POSITIVE_INFINITY);return new Ss(this.sourcePosition,e)}clone(){return new this.constructor(this.sourcePosition,this.howMany,this.targetPosition,this.graveyardPosition,this.baseVersion)}getReversed(){const e=this.targetPosition._getTransformedByMergeOperation(this),t=this.sourcePosition.path.slice(0,-1),n=new As(this.sourcePosition.root,t)._getTransformedByMergeOperation(this),o=new Ja(e,this.howMany,this.graveyardPosition,this.baseVersion+1);return o.insertionPosition=n,o}_validate(){const e=this.sourcePosition.parent,t=this.targetPosition.parent;if(!e.parent)throw new hn.b("merge-operation-source-position-invalid: Merge source position is invalid.",this);if(!t.parent)throw new hn.b("merge-operation-target-position-invalid: Merge target position is invalid.",this);if(this.howMany!=e.maxOffset)throw new hn.b("merge-operation-how-many-invalid: Merge operation specifies wrong number of nodes to move.",this)}_execute(){const e=this.sourcePosition.parent;Va(Ss._createIn(e),this.targetPosition),Va(Ss._createOn(e),this.graveyardPosition)}toJSON(){const e=super.toJSON();return e.sourcePosition=e.sourcePosition.toJSON(),e.targetPosition=e.targetPosition.toJSON(),e.graveyardPosition=e.graveyardPosition.toJSON(),e}static get className(){return"MergeOperation"}static fromJSON(e,t){const n=As.fromJSON(e.sourcePosition,t),o=As.fromJSON(e.targetPosition,t),i=As.fromJSON(e.graveyardPosition,t);return new this(n,e.howMany,o,i,e.baseVersion)}}class Ja extends Oa{constructor(e,t,n,o){super(o),this.splitPosition=e.clone(),this.splitPosition.stickiness="toNext",this.howMany=t,this.insertionPosition=Ja.getInsertionPosition(e),this.insertionPosition.stickiness="toNone",this.graveyardPosition=n?n.clone():null,this.graveyardPosition&&(this.graveyardPosition.stickiness="toNext")}get type(){return"split"}get moveTargetPosition(){const e=this.insertionPosition.path.slice();return e.push(0),new As(this.insertionPosition.root,e)}get movedRange(){const e=this.splitPosition.getShiftedBy(Number.POSITIVE_INFINITY);return new Ss(this.splitPosition,e)}clone(){const e=new this.constructor(this.splitPosition,this.howMany,this.graveyardPosition,this.baseVersion);return e.insertionPosition=this.insertionPosition,e}getReversed(){const e=this.splitPosition.root.document.graveyard,t=new As(e,[0]);return new Qa(this.moveTargetPosition,this.howMany,this.splitPosition,t,this.baseVersion+1)}_validate(){const e=this.splitPosition.parent,t=this.splitPosition.offset;if(!e||e.maxOffset{for(const t of e.getAttributeKeys())this.removeAttribute(t,e)};if(e instanceof Ss)for(const n of e.getItems())t(n);else t(e)}move(e,t,n){if(this._assertWriterUsedCorrectly(),!(e instanceof Ss))throw new hn.b("writer-move-invalid-range: Invalid range to move.",this);if(!e.isFlat)throw new hn.b("writer-move-range-not-flat: Range to move is not flat.",this);const o=As._createAt(t,n);if(o.isEqual(e.start))return;if(this._addOperationForAffectedMarkers("move",e),!ic(e.root,o.root))throw new hn.b("writer-move-different-document: Range is going to be moved between different documents.",this);const i=e.root.document?e.root.document.version:null,r=new Wa(e.start,e.end.offset-e.start.offset,o,i);this.batch.addOperation(r),this.model.applyOperation(r)}remove(e){this._assertWriterUsedCorrectly();const t=(e instanceof Ss?e:Ss._createOn(e)).getMinimalFlatRanges().reverse();for(const e of t)this._addOperationForAffectedMarkers("move",e),oc(e.start,e.end.offset-e.start.offset,this.batch,this.model)}merge(e){this._assertWriterUsedCorrectly();const t=e.nodeBefore,n=e.nodeAfter;if(this._addOperationForAffectedMarkers("merge",e),!(t instanceof vs))throw new hn.b("writer-merge-no-element-before: Node before merge position must be an element.",this);if(!(n instanceof vs))throw new hn.b("writer-merge-no-element-after: Node after merge position must be an element.",this);e.root.document?this._merge(e):this._mergeDetached(e)}createPositionFromPath(e,t,n){return this.model.createPositionFromPath(e,t,n)}createPositionAt(e,t){return this.model.createPositionAt(e,t)}createPositionAfter(e){return this.model.createPositionAfter(e)}createPositionBefore(e){return this.model.createPositionBefore(e)}createRange(e,t){return this.model.createRange(e,t)}createRangeIn(e){return this.model.createRangeIn(e)}createRangeOn(e){return this.model.createRangeOn(e)}createSelection(e,t,n){return this.model.createSelection(e,t,n)}_mergeDetached(e){const t=e.nodeBefore,n=e.nodeAfter;this.move(Ss._createIn(n),As._createAt(t,"end")),this.remove(n)}_merge(e){const t=As._createAt(e.nodeBefore,"end"),n=As._createAt(e.nodeAfter,0),o=e.root.document.graveyard,i=new As(o,[0]),r=e.root.document.version,s=new Qa(n,e.nodeAfter.maxOffset,t,i,r);this.batch.addOperation(s),this.model.applyOperation(s)}rename(e,t){if(this._assertWriterUsedCorrectly(),!(e instanceof vs))throw new hn.b("writer-rename-not-element-instance: Trying to rename an object which is not an instance of Element.",this);const n=e.root.document?e.root.document.version:null,o=new Ya(As._createBefore(e),e.name,t,n);this.batch.addOperation(o),this.model.applyOperation(o)}split(e,t){this._assertWriterUsedCorrectly();let n,o,i=e.parent;if(!i.parent)throw new hn.b("writer-split-element-no-parent: Element with no parent can not be split.",this);if(t||(t=i.parent),!e.parent.getAncestors({includeSelf:!0}).includes(t))throw new hn.b("writer-split-invalid-limit-element: Limit element is not a position ancestor.",this);do{const t=i.root.document?i.root.document.version:null,r=i.maxOffset-e.offset,s=new Ja(e,r,null,t);this.batch.addOperation(s),this.model.applyOperation(s),n||o||(n=i,o=e.parent.nextSibling),i=(e=this.createPositionAfter(e.parent)).parent}while(i!==t);return{position:e,range:new Ss(As._createAt(n,"end"),As._createAt(o,0))}}wrap(e,t){if(this._assertWriterUsedCorrectly(),!e.isFlat)throw new hn.b("writer-wrap-range-not-flat: Range to wrap is not flat.",this);const n=t instanceof vs?t:new vs(t);if(n.childCount>0)throw new hn.b("writer-wrap-element-not-empty: Element to wrap with is not empty.",this);if(null!==n.parent)throw new hn.b("writer-wrap-element-attached: Element to wrap with is already attached to tree model.",this);this.insert(n,e.start);const o=new Ss(e.start.getShiftedBy(1),e.end.getShiftedBy(1));this.move(o,As._createAt(n,0))}unwrap(e){if(this._assertWriterUsedCorrectly(),null===e.parent)throw new hn.b("writer-unwrap-element-no-parent: Trying to unwrap an element which has no parent.",this);this.move(Ss._createIn(e),this.createPositionAfter(e)),this.remove(e)}addMarker(e,t){if(this._assertWriterUsedCorrectly(),!t||"boolean"!=typeof t.usingOperation)throw new hn.b("writer-addMarker-no-usingOperation: The options.usingOperation parameter is required when adding a new marker.",this);const n=t.usingOperation,o=t.range,i=void 0!==t.affectsData&&t.affectsData;if(this.model.markers.has(e))throw new hn.b("writer-addMarker-marker-exists: Marker with provided name already exists.",this);if(!o)throw new hn.b("writer-addMarker-no-range: Range parameter is required when adding a new marker.",this);return n?(nc(this,e,null,o,i),this.model.markers.get(e)):this.model.markers._set(e,o,n,i)}updateMarker(e,t){this._assertWriterUsedCorrectly();const n="string"==typeof e?e:e.name,o=this.model.markers.get(n);if(!o)throw new hn.b("writer-updateMarker-marker-not-exists: Marker with provided name does not exists.",this);if(!t)return void this.model.markers._refresh(o);const i="boolean"==typeof t.usingOperation,r="boolean"==typeof t.affectsData,s=r?t.affectsData:o.affectsData;if(!i&&!t.range&&!r)throw new hn.b("writer-updateMarker-wrong-options: One of the options is required - provide range, usingOperations or affectsData.",this);const a=o.getRange(),c=t.range?t.range:a;i&&t.usingOperation!==o.managedUsingOperations?t.usingOperation?nc(this,n,null,c,s):(nc(this,n,a,null,s),this.model.markers._set(n,c,void 0,s)):o.managedUsingOperations?nc(this,n,a,c,s):this.model.markers._set(n,c,void 0,s)}removeMarker(e){this._assertWriterUsedCorrectly();const t="string"==typeof e?e:e.name;if(!this.model.markers.has(t))throw new hn.b("writer-removeMarker-no-marker: Trying to remove marker which does not exist.",this);const n=this.model.markers.get(t);if(!n.managedUsingOperations)return void this.model.markers._remove(t);nc(this,t,n.getRange(),null,n.affectsData)}setSelection(e,t,n){this._assertWriterUsedCorrectly(),this.model.document.selection._setTo(e,t,n)}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,n]of Ln(e))this._setSelectionAttribute(t,n)}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 n=this.model.document.selection;if(n.isCollapsed&&n.anchor.parent.isEmpty){const o=Us._getStoreAttributeKey(e);this.setAttribute(o,t,n.anchor.parent)}n._setAttribute(e,t)}_removeSelectionAttribute(e){const t=this.model.document.selection;if(t.isCollapsed&&t.anchor.parent.isEmpty){const n=Us._getStoreAttributeKey(e);this.removeAttribute(n,t.anchor.parent)}t._removeAttribute(e)}_assertWriterUsedCorrectly(){if(this.model._currentWriter!==this)throw new hn.b("writer-incorrect-use: Trying to use a writer outside the change() block.",this)}_addOperationForAffectedMarkers(e,t){for(const n of this.model.markers){if(!n.managedUsingOperations)continue;const o=n.getRange();let i=!1;if("move"===e)i=t.containsPosition(o.start)||t.start.isEqual(o.start)||t.containsPosition(o.end)||t.end.isEqual(o.end);else{const e=t.nodeBefore,n=t.nodeAfter,r=o.start.parent==e&&o.start.isAtEnd,s=o.end.parent==n&&0==o.end.offset,a=o.end.nodeAfter==n,c=o.start.nodeAfter==n;i=r||s||a||c}i&&this.updateMarker(n.name,{range:o})}}}function ec(e,t,n,o){const i=e.model,r=i.document;let s,a,c,l=o.start;for(const e of o.getWalker({shallow:!0}))c=e.item.getAttribute(t),s&&a!=c&&(a!=n&&d(),l=s),s=e.nextPosition,a=c;function d(){const o=new Ss(l,s),c=o.root.document?r.version:null,d=new Ha(o,t,a,n,c);e.batch.addOperation(d),i.applyOperation(d)}s instanceof As&&s!=l&&a!=n&&d()}function tc(e,t,n,o){const i=e.model,r=i.document,s=o.getAttribute(t);let a,c;if(s!=n){if(o.root===o){const e=o.document?r.version:null;c=new Ka(o,t,s,n,e)}else{a=new Ss(As._createBefore(o),e.createPositionAfter(o));const i=a.root.document?r.version:null;c=new Ha(a,t,s,n,i)}e.batch.addOperation(c),i.applyOperation(c)}}function nc(e,t,n,o,i){const r=e.model,s=r.document,a=new Ga(t,n,o,r.markers,i,s.version);e.batch.addOperation(a),r.applyOperation(a)}function oc(e,t,n,o){let i;if(e.root.document){const n=o.document,r=new As(n.graveyard,[0]);i=new Wa(e,t,r,n.version)}else i=new qa(e,t);n.addOperation(i),o.applyOperation(i)}function ic(e,t){return e===t||e instanceof Za&&t instanceof Za}class rc{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}refreshItem(e){if(this._isInInsertedElement(e.parent))return;this._markRemove(e.parent,e.startOffset,e.offsetSize),this._markInsert(e.parent,e.startOffset,e.offsetSize);const t=Ss._createOn(e);for(const e of this._markerCollection.getMarkersIntersectingRange(t)){const t=e.getRange();this.bufferMarkerChange(e.name,t,t,e.affectsData)}this._cachedChanges=null}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({shallow:!0}))this._isInInsertedElement(t.parent)||this._markAttribute(t);break;case"remove":case"move":case"reinsert":{if(e.sourcePosition.isEqual(e.targetPosition)||e.sourcePosition.getShiftedBy(e.howMany).isEqual(e.targetPosition))return;const t=this._isInInsertedElement(e.sourcePosition.parent),n=this._isInInsertedElement(e.targetPosition.parent);t||this._markRemove(e.sourcePosition.parent,e.sourcePosition.offset,e.howMany),n||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=Ss._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}case"split":{const t=e.splitPosition.parent;this._isInInsertedElement(t)||this._markRemove(t,e.splitPosition.offset,e.howMany),this._isInInsertedElement(e.insertionPosition.parent)||this._markInsert(e.insertionPosition.parent,e.insertionPosition.offset,1),e.graveyardPosition&&this._markRemove(e.graveyardPosition.parent,e.graveyardPosition.offset,1);break}case"merge":{const t=e.sourcePosition.parent;this._isInInsertedElement(t.parent)||this._markRemove(t.parent,t.startOffset,1);const n=e.graveyardPosition.parent;this._markInsert(n,e.graveyardPosition.offset,1);const o=e.targetPosition.parent;this._isInInsertedElement(o)||this._markInsert(o,e.targetPosition.offset,t.maxOffset);break}}this._cachedChanges=null}bufferMarkerChange(e,t,n,o){const i=this._changedMarkers.get(e);i?(i.newRange=n,i.affectsData=o,null==i.oldRange&&null==i.newRange&&this._changedMarkers.delete(e)):this._changedMarkers.set(e,{oldRange:t,newRange:n,affectsData:o})}getMarkersToRemove(){const e=[];for(const[t,n]of this._changedMarkers)null!=n.oldRange&&e.push({name:t,range:n.oldRange});return e}getMarkersToAdd(){const e=[];for(const[t,n]of this._changedMarkers)null!=n.newRange&&e.push({name:t,range:n.newRange});return e}getChangedMarkers(){return Array.from(this._changedMarkers).map(e=>({name:e[0],data:{oldRange:e[1].oldRange,newRange:e[1].newRange}}))}hasDataChanges(){for(const[,e]of this._changedMarkers)if(e.affectsData)return!0;return this._changesInElement.size>0}getChanges(e={includeChangesInGraveyard:!1}){if(this._cachedChanges)return e.includeChangesInGraveyard?this._cachedChangesWithGraveyard.slice():this._cachedChanges.slice();const t=[];for(const e of this._changesInElement.keys()){const n=this._changesInElement.get(e).sort((e,t)=>e.offset===t.offset?e.type!=t.type?"remove"==e.type?-1:1:0:e.offsete.position.root!=t.position.root?e.position.root.rootNamen.offset){if(o>i){const e={type:"attribute",offset:i,howMany:o-i,count:this._changeCount++};this._handleChange(e,t),t.push(e)}e.nodesToHandle=n.offset-e.offset,e.howMany=e.nodesToHandle}else e.offset>=n.offset&&e.offseti?(e.nodesToHandle=o-i,e.offset=i):e.nodesToHandle=0);if("remove"==n.type&&e.offsetn.offset){const i={type:"attribute",offset:n.offset,howMany:o-n.offset,count:this._changeCount++};this._handleChange(i,t),t.push(i),e.nodesToHandle=n.offset-e.offset,e.howMany=e.nodesToHandle}"attribute"==n.type&&(e.offset>=n.offset&&o<=i?(e.nodesToHandle=0,e.howMany=0,e.offset=0):e.offset<=n.offset&&o>=i&&(n.howMany=0))}}e.howMany=e.nodesToHandle,delete e.nodesToHandle}_getInsertDiff(e,t,n){return{type:"insert",position:As._createAt(e,t),name:n,length:1,changeCount:this._changeCount++}}_getRemoveDiff(e,t,n){return{type:"remove",position:As._createAt(e,t),name:n,length:1,changeCount:this._changeCount++}}_getAttributesDiff(e,t,n){const o=[];n=new Map(n);for(const[i,r]of t){const t=n.has(i)?n.get(i):null;t!==r&&o.push({type:"attribute",position:e.start,range:e.clone(),length:1,attributeKey:i,attributeOldValue:r,attributeNewValue:t,changeCount:this._changeCount++}),n.delete(i)}for(const[t,i]of n)o.push({type:"attribute",position:e.start,range:e.clone(),length:1,attributeKey:t,attributeOldValue:null,attributeNewValue:i,changeCount:this._changeCount++});return o}_isInInsertedElement(e){const t=e.parent;if(!t)return!1;const n=this._changesInElement.get(t),o=e.startOffset;if(n)for(const e of n)if("insert"==e.type&&o>=e.offset&&oo){for(let t=0;t{const n=t[0];if(n.isDocumentOperation&&n.baseVersion!==this.version)throw new hn.b("model-document-applyOperation-wrong-version: Only operations with matching versions can be applied.",this,{operation:n})},{priority:"highest"}),this.listenTo(e,"applyOperation",(e,t)=>{const n=t[0];n.isDocumentOperation&&this.differ.bufferOperation(n)},{priority:"high"}),this.listenTo(e,"applyOperation",(e,t)=>{const n=t[0];n.isDocumentOperation&&(this.version++,this.history.addOperation(n))},{priority:"low"}),this.listenTo(this.selection,"change",()=>{this._hasSelectionChangedFromTheLastChangeBlock=!0}),this.listenTo(e.markers,"update",(e,t,n,o)=>{this.differ.bufferMarkerChange(t.name,n,o,t.affectsData),null===n&&t.on("change",(e,n)=>{this.differ.bufferMarkerChange(t.name,n,t.getRange(),t.affectsData)})})}get graveyard(){return this.getRoot("$graveyard")}createRoot(e="$root",t="main"){if(this.roots.get(t))throw new hn.b("model-document-createRoot-name-exists: Root with specified name already exists.",this,{name:t});const n=new Za(this,e,t);return this.roots.add(n),n}destroy(){this.selection.destroy(),this.stopListening()}getRoot(e="main"){return this.roots.get(e)}getRootNames(){return Array.from(this.roots,e=>e.rootName).filter(e=>"$graveyard"!=e)}registerPostFixer(e){this._postFixers.add(e)}toJSON(){const e=Nn(this);return e.selection="[engine.model.DocumentSelection]",e.model="[engine.model.Model]",e}_handleChangeBlock(e){this._hasDocumentChangedFromTheLastChangeBlock()&&(this._callPostFixers(e),this.selection.refresh(),this.differ.hasDataChanges()?this.fire("change:data",e.batch):this.fire("change",e.batch),this.selection.refresh(),this.differ.reset()),this._hasSelectionChangedFromTheLastChangeBlock=!1}_hasDocumentChangedFromTheLastChangeBlock(){return!this.differ.isEmpty||this._hasSelectionChangedFromTheLastChangeBlock}_getDefaultRoot(){for(const e of this.roots)if(e!==this.graveyard)return e;return this.graveyard}_getDefaultRange(){const e=this._getDefaultRoot(),t=this.model,n=t.schema,o=t.createPositionFromPath(e,[0]);return n.getNearestSelectionRange(o)||t.createRange(o)}_validateSelectionRange(e){return fc(e.start)&&fc(e.end)}_callPostFixers(e){let t=!1;do{for(const n of this._postFixers)if(this.selection.refresh(),t=n(e),t)break}while(t)}}function fc(e){const t=e.textNode;if(t){const n=t.data,o=e.offset-t.startOffset;return!dc(n,o)&&!uc(n,o)}return!0}xn(hc,gn);class mc{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,n=!1,o=!1){const i=e instanceof gc?e.name:e;if(i.includes(","))throw new hn.b('markercollection-incorrect-marker-name: Marker name cannot contain the "," character.',this);const r=this._markers.get(i);if(r){const e=r.getRange();let s=!1;return e.isEqual(t)||(r._attachLiveRange(zs.fromRange(t)),s=!0),n!=r.managedUsingOperations&&(r._managedUsingOperations=n,s=!0),"boolean"==typeof o&&o!=r.affectsData&&(r._affectsData=o,s=!0),s&&this.fire("update:"+i,r,e,t),r}const s=zs.fromRange(t),a=new gc(i,s,n,o);return this._markers.set(i,a),this.fire("update:"+i,a,null,t),a}_remove(e){const t=e instanceof gc?e.name:e,n=this._markers.get(t);return!!n&&(this._markers.delete(t),this.fire("update:"+t,n,n.getRange(),null),this._destroyMarker(n),!0)}_refresh(e){const t=e instanceof gc?e.name:e,n=this._markers.get(t);if(!n)throw new hn.b("markercollection-refresh-marker-not-exists: Marker with provided name does not exists.",this);const o=n.getRange();this.fire("update:"+t,n,o,o,n.managedUsingOperations,n.affectsData)}*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()}}xn(mc,gn);class gc{constructor(e,t,n,o){this.name=e,this._liveRange=this._attachLiveRange(t),this._managedUsingOperations=n,this._affectsData=o}get managedUsingOperations(){if(!this._liveRange)throw new hn.b("marker-destroyed: Cannot use a destroyed marker instance.",this);return this._managedUsingOperations}get affectsData(){if(!this._liveRange)throw new hn.b("marker-destroyed: Cannot use a destroyed marker instance.",this);return this._affectsData}getStart(){if(!this._liveRange)throw new hn.b("marker-destroyed: Cannot use a destroyed marker instance.",this);return this._liveRange.start.clone()}getEnd(){if(!this._liveRange)throw new hn.b("marker-destroyed: Cannot use a destroyed marker instance.",this);return this._liveRange.end.clone()}getRange(){if(!this._liveRange)throw new hn.b("marker-destroyed: Cannot use a destroyed marker instance.",this);return this._liveRange.toRange()}is(e){return"marker"===e||"model:marker"===e}_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}}xn(gc,gn);class pc extends Oa{get type(){return"noop"}clone(){return new pc(this.baseVersion)}getReversed(){return new pc(this.baseVersion+1)}_execute(){}static get className(){return"NoOperation"}}const bc={};bc[Ha.className]=Ha,bc[$a.className]=$a,bc[Ga.className]=Ga,bc[Wa.className]=Wa,bc[pc.className]=pc,bc[Oa.className]=Oa,bc[Ya.className]=Ya,bc[Ka.className]=Ka,bc[Ja.className]=Ja,bc[Qa.className]=Qa;class wc extends As{constructor(e,t,n="toNone"){if(super(e,t,n),!this.root.is("rootElement"))throw new hn.b("model-liveposition-root-not-rootelement: LivePosition's root has to be an instance of RootElement.",e);kc.call(this)}detach(){this.stopListening()}is(e){return"livePosition"===e||"model:livePosition"===e||"position"==e||"model:position"===e}toPosition(){return new As(this.root,this.path.slice(),this.stickiness)}static fromPosition(e,t){return new this(e.root,e.path.slice(),t||e.stickiness)}}function kc(){this.listenTo(this.root.document.model,"applyOperation",(e,t)=>{const n=t[0];n.isDocumentOperation&&_c.call(this,n)},{priority:"low"})}function _c(e){const t=this.getTransformedByOperation(e);if(!this.isEqual(t)){const e=this.toPosition();this.path=t.path,this.root=t.root,this.fire("change",e)}}xn(wc,gn);class vc{constructor(e,t,n){this.model=e,this.writer=t,this.position=n,this.canMergeWith=new Set([this.position.parent]),this.schema=e.schema,this._filterAttributesOf=[],this._affectedStart=null,this._affectedEnd=null}handleNodes(e,t){e=Array.from(e);for(let n=0;n{if(!n.doNotResetEntireContent&&function(e,t){const n=e.getLimitElement(t);if(!t.containsEntireContent(n))return!1;const o=t.getFirstRange();if(o.start.parent==o.end.parent)return!1;return e.checkChild(n,"paragraph")}(i,t))return void function(e,t){const n=e.model.schema.getLimitElement(t);e.remove(e.createRangeIn(n)),Ac(e,e.createPositionAt(n,0),t)}(e,t);const[r,s]=function(e){const t=e.root.document.model,n=e.start;let o=e.end;if(t.hasContent(e,{ignoreMarkers:!0})){const n=function(e){const t=e.parent,n=t.root.document.model.schema,o=t.getAncestors({parentFirst:!0,includeSelf:!0});for(const e of o){if(n.isLimit(e))return null;if(n.isBlock(e))return e}}(o);if(n&&o.isTouching(t.createPositionAt(n,0))){const n=t.createSelection(e);t.modifySelection(n,{direction:"backward"}),o=n.getLastPosition()}}return[wc.fromPosition(n,"toPrevious"),wc.fromPosition(o,"toNext")]}(o);o.start.isTouching(o.end)||e.remove(o),n.leaveUnmerged||(!function(e,t,n){const o=e.model;if(!xc(e.model.schema,t,n))return;const[i,r]=function(e,t){const n=e.getAncestors(),o=t.getAncestors();let i=0;for(;n[i]&&n[i]==o[i];)i++;return[n[i],o[i]]}(t,n);!o.hasContent(i,{ignoreMarkers:!0})&&o.hasContent(r,{ignoreMarkers:!0})?function e(t,n,o,i){const r=n.parent,s=o.parent;if(r==i||s==i)return;n=t.createPositionAfter(r),(o=t.createPositionBefore(s)).isEqual(n)||t.insert(r,o);for(;n.parent.isEmpty;){const e=n.parent;n=t.createPositionBefore(e),t.remove(e)}if(o=t.createPositionBefore(s),function(e,t){const n=t.nodeBefore,o=t.nodeAfter;n.name!=o.name&&e.rename(n,o.name);e.clearAttributes(n),e.setAttributes(Object.fromEntries(o.getAttributes()),n),e.merge(t)}(t,o),!xc(t.model.schema,n,o))return;e(t,n,o,i)}(e,t,n,i.parent):function e(t,n,o,i){const r=n.parent,s=o.parent;if(r==i||s==i)return;n=t.createPositionAfter(r),(o=t.createPositionBefore(s)).isEqual(n)||t.insert(s,n);t.merge(n);for(;o.parent.isEmpty;){const e=o.parent;o=t.createPositionBefore(e),t.remove(e)}if(!xc(t.model.schema,n,o))return;e(t,n,o,i)}(e,t,n,i.parent)}(e,r,s),i.removeDisallowedAttributes(r.parent.getChildren(),e)),Cc(e,t,r),!n.doNotAutoparagraph&&function(e,t){const n=e.checkChild(t,"$text"),o=e.checkChild(t,"paragraph");return!n&&o}(i,r)&&Ac(e,r,t),r.detach(),s.detach()})}function xc(e,t,n){const o=t.parent,i=n.parent;return o!=i&&(!e.isLimit(o)&&!e.isLimit(i)&&function(e,t,n){const o=new Ss(e,t);for(const e of o.getWalker())if(n.isLimit(e.item))return!1;return!0}(t,n,e))}function Ac(e,t,n){const o=e.createElement("paragraph");e.insert(o,t),Cc(e,n,e.createPositionAt(o,0))}function Cc(e,t,n){t instanceof Us?e.setSelection(n):t.setTo(n)}function Tc(e,t){const{isForward:n,walker:o,unit:i,schema:r}=e,{type:s,item:a,nextPosition:c}=t;if("text"==s)return"word"===e.unit?function(e,t){let n=e.position.textNode;if(n){let o=e.position.offset-n.startOffset;for(;!Sc(n.data,o,t)&&!Ec(n,o,t);){e.next();const i=t?e.position.nodeAfter:e.position.nodeBefore;if(i&&i.is("$text")){const o=i.data.charAt(t?0:i.data.length-1);' ,.?!:;"-()'.includes(o)||(e.next(),n=e.position.textNode)}o=e.position.offset-n.startOffset}}return e.position}(o,n):function(e,t){const n=e.position.textNode;if(n){const o=n.data;let i=e.position.offset-n.startOffset;for(;dc(o,i)||"character"==t&&uc(o,i);)e.next(),i=e.position.offset-n.startOffset}return e.position}(o,i);if(s==(n?"elementStart":"elementEnd")){if(r.isSelectable(a))return As._createAt(a,n?"after":"before");if(r.checkChild(c,"$text"))return c}else{if(r.isLimit(a))return void o.skip(()=>!0);if(r.checkChild(c,"$text"))return c}}function Pc(e,t){const n=e.root,o=As._createAt(n,t?"end":0);return t?new Ss(e,o):new Ss(o,e)}function Sc(e,t,n){const o=t+(n?0:-1);return' ,.?!:;"-()'.includes(e.charAt(o))}function Ec(e,t,n){return t===(n?e.endOffset:0)}function Mc(e,t){const n=[];Array.from(e.getItems({direction:"backward"})).map(e=>t.createRangeOn(e)).filter(t=>(t.start.isAfter(e.start)||t.start.isEqual(e.start))&&(t.end.isBefore(e.end)||t.end.isEqual(e.end))).forEach(e=>{n.push(e.start.parent),t.remove(e)}),n.forEach(e=>{let n=e;for(;n.parent&&n.isEmpty;){const e=t.createRangeOn(n);n=n.parent,t.remove(e)}})}function Ic(e){e.document.registerPostFixer(t=>function(e,t){const n=t.document.selection,o=t.schema,i=[];let r=!1;for(const e of n.getRanges()){const t=Nc(e,o);t&&!t.isEqual(e)?(i.push(t),r=!0):i.push(e)}r&&e.setSelection(function(e){const t=[];t.push(e.shift());for(const n of e){const e=t.pop();if(n.isIntersecting(e)){const o=e.start.isAfter(n.start)?n.start:e.start,i=e.end.isAfter(n.end)?e.end:n.end,r=new Ss(o,i);t.push(r)}else t.push(e),t.push(n)}return t}(i),{backward:n.isBackward})}(t,e))}function Nc(e,t){return e.isCollapsed?function(e,t){const n=e.start,o=t.getNearestSelectionRange(n);if(!o)return null;if(!o.isCollapsed)return o;const i=o.start;if(n.isEqual(i))return null;return new Ss(i)}(e,t):function(e,t){const{start:n,end:o}=e,i=t.checkChild(n,"$text"),r=t.checkChild(o,"$text"),s=t.getLimitElement(n),a=t.getLimitElement(o);if(s===a){if(i&&r)return null;if(function(e,t,n){const o=e.nodeAfter&&!n.isLimit(e.nodeAfter)||n.checkChild(e,"$text"),i=t.nodeBefore&&!n.isLimit(t.nodeBefore)||n.checkChild(t,"$text");return o||i}(n,o,t)){const e=n.nodeAfter&&t.isSelectable(n.nodeAfter)?null:t.getNearestSelectionRange(n,"forward"),i=o.nodeBefore&&t.isSelectable(o.nodeBefore)?null:t.getNearestSelectionRange(o,"backward"),r=e?e.start:n,s=i?i.start:o;return new Ss(r,s)}}const c=s&&!s.is("rootElement"),l=a&&!a.is("rootElement");if(c||l){const e=n.nodeAfter&&o.nodeBefore&&n.nodeAfter.parent===o.nodeBefore.parent,i=c&&(!e||!Rc(n.nodeAfter,t)),r=l&&(!e||!Rc(o.nodeBefore,t));let d=n,u=o;return i&&(d=As._createBefore(Oc(s,t))),r&&(u=As._createAfter(Oc(a,t))),new Ss(d,u)}return null}(e,t)}function Oc(e,t){let n=e,o=n;for(;t.isLimit(o)&&o.parent;)n=o,o=o.parent;return n}function Rc(e,t){return e&&t.isSelectable(e)}class Dc{constructor(){this.markers=new mc,this.document=new hc(this),this.schema=new ma,this._pendingChanges=[],this._currentWriter=null,["insertContent","deleteContent","modifySelection","getSelectedContent","applyOperation"].forEach(e=>this.decorate(e)),this.on("applyOperation",(e,t)=>{t[0]._validate()},{priority:"highest"}),this.schema.register("$root",{isLimit:!0}),this.schema.register("$block",{allowIn:"$root",isBlock:!0}),this.schema.register("$text",{allowIn:"$block",isInline:!0,isContent:!0}),this.schema.register("$clipboardHolder",{allowContentOf:"$root",isLimit:!0}),this.schema.extend("$text",{allowIn:"$clipboardHolder"}),this.schema.register("$marker"),this.schema.addChildCheck((e,t)=>{if("$marker"===t.name)return!0}),Ic(this),this.document.registerPostFixer(ea)}change(e){try{return 0===this._pendingChanges.length?(this._pendingChanges.push({batch:new Na,callback:e}),this._runPendingChanges()[0]):e(this._currentWriter)}catch(e){hn.b.rethrowUnexpectedError(e,this)}}enqueueChange(e,t){try{"string"==typeof e?e=new Na(e):"function"==typeof e&&(t=e,e=new Na),this._pendingChanges.push({batch:e,callback:t}),1==this._pendingChanges.length&&this._runPendingChanges()}catch(e){hn.b.rethrowUnexpectedError(e,this)}}applyOperation(e){e._execute()}insertContent(e,t,n){return function(e,t,n,o){return e.change(i=>{let r;r=n?n instanceof Rs||n instanceof Us?n:i.createSelection(n,o):e.document.selection,r.isCollapsed||e.deleteContent(r,{doNotAutoparagraph:!0});const s=new vc(e,i,r.anchor);let a;a=t.is("documentFragment")?t.getChildren():[t],s.handleNodes(a,{isFirst:!0,isLast:!0});const c=s.getSelectionRange();c&&(r instanceof Us?i.setSelection(c):r.setTo(c));const l=s.getAffectedRange()||e.createRange(r.anchor);return s.destroy(),l})}(this,e,t,n)}deleteContent(e,t){yc(this,e,t)}modifySelection(e,t){!function(e,t,n={}){const o=e.schema,i="backward"!=n.direction,r=n.unit?n.unit:"character",s=t.focus,a=new ys({boundaries:Pc(s,i),singleCharacters:!0,direction:i?"forward":"backward"}),c={walker:a,schema:o,isForward:i,unit:r};let l;for(;l=a.next();){if(l.done)return;const n=Tc(c,l.value);if(n)return void(t instanceof Us?e.change(e=>{e.setSelectionFocus(n)}):t.setFocus(n))}}(this,e,t)}getSelectedContent(e){return function(e,t){return e.change(e=>{const n=e.createDocumentFragment(),o=t.getFirstRange();if(!o||o.isCollapsed)return n;const i=o.start.root,r=o.start.getCommonPath(o.end),s=i.getNodeByPath(r);let a;a=o.start.parent==o.end.parent?o:e.createRange(e.createPositionAt(s,o.start.path[r.length]),e.createPositionAt(s,o.end.path[r.length]+1));const c=a.end.offset-a.start.offset;for(const t of a.getItems({shallow:!0}))t.is("$textProxy")?e.appendText(t.data,t.getAttributes(),n):e.append(e.cloneElement(t,!0),n);if(a!=o){const t=o._getTransformedByMove(a.start,e.createPositionAt(n,0),c)[0],i=e.createRange(e.createPositionAt(n,0),t.start);Mc(e.createRange(t.end,e.createPositionAt(n,"end")),e),Mc(i,e)}return n})}(this,e)}hasContent(e,t={}){const n=e instanceof vs?Ss._createIn(e):e;if(n.isCollapsed)return!1;const{ignoreWhitespaces:o=!1,ignoreMarkers:i=!1}=t;if(!i)for(const e of this.markers.getMarkersIntersectingRange(n))if(e.affectsData)return!0;for(const e of n.getItems())if(this.schema.isContent(e)){if(!e.is("$textProxy"))return!0;if(!o)return!0;if(-1!==e.data.search(/\S/))return!0}return!1}createPositionFromPath(e,t,n){return new As(e,t,n)}createPositionAt(e,t){return As._createAt(e,t)}createPositionAfter(e){return As._createAfter(e)}createPositionBefore(e){return As._createBefore(e)}createRange(e,t){return new Ss(e,t)}createRangeIn(e){return Ss._createIn(e)}createRangeOn(e){return Ss._createOn(e)}createSelection(e,t,n){return new Rs(e,t,n)}createBatch(e){return new Na(e)}createOperationFromJSON(e){return class{static fromJSON(e,t){return bc[e.__className].fromJSON(e,t)}}.fromJSON(e,this.document)}destroy(){this.document.destroy(),this.stopListening()}_runPendingChanges(){const e=[];for(this.fire("_beforeChanges");this._pendingChanges.length;){const t=this._pendingChanges[0].batch;this._currentWriter=new Xa(this,t);const n=this._pendingChanges[0].callback(this._currentWriter);e.push(n),this.document._handleChangeBlock(this._currentWriter),this._pendingChanges.shift(),this._currentWriter=null}return this.fire("_afterChanges"),e}}xn(Dc,Ho);class Lc{constructor(){this._listener=Object.create(fr)}listenTo(e){this._listener.listenTo(e,"keydown",(e,t)=>{this._listener.fire("_keydown:"+pi(t),t)})}set(e,t,n={}){const o=bi(e),i=n.priority;this._listener.listenTo(this._listener,"_keydown:"+o,(e,n)=>{t(n,()=>{n.preventDefault(),n.stopPropagation(),e.stop()}),e.return=!0},{priority:i})}press(e){return!!this._listener.fire("_keydown:"+pi(e),e)}destroy(){this._listener.stopListening()}}class Vc extends Lc{constructor(e){super(),this.editor=e}set(e,t,n={}){if("string"==typeof t){const e=t;t=(t,n)=>{this.editor.execute(e),n()}}super.set(e,t,n)}}class jc{constructor(e={}){this._context=e.context||new Mn({language:e.language}),this._context._addEditor(this,!e.context);const t=Array.from(this.constructor.builtinPlugins||[]);this.config=new on(e,this.constructor.defaultConfig),this.config.define("plugins",t),this.config.define(this._context._getEditorConfig()),this.plugins=new Cn(this,t,this._context.plugins),this.locale=this._context.locale,this.t=this.locale.t,this.commands=new ua,this.set("state","initializing"),this.once("ready",()=>this.state="ready",{priority:"high"}),this.once("destroy",()=>this.state="destroyed",{priority:"high"}),this.set("isReadOnly",!1),this.model=new Dc;const n=new Io;this.data=new Sa(this.model,n),this.editing=new da(this.model,n),this.editing.view.document.bind("isReadOnly").to(this),this.conversion=new Ea([this.editing.downcastDispatcher,this.data.downcastDispatcher],this.data.upcastDispatcher),this.conversion.addAlias("dataDowncast",this.data.downcastDispatcher),this.conversion.addAlias("editingDowncast",this.editing.downcastDispatcher),this.keystrokes=new Vc(this),this.keystrokes.listenTo(this.editing.view.document)}initPlugins(){const e=this.config,t=e.get("plugins"),n=e.get("removePlugins")||[],o=e.get("extraPlugins")||[];return this.plugins.init(t.concat(o),n)}destroy(){let e=Promise.resolve();return"initializing"==this.state&&(e=new Promise(e=>this.once("ready",e))),e.then(()=>{this.fire("destroy"),this.stopListening(),this.commands.destroy()}).then(()=>this.plugins.destroy()).then(()=>{this.model.destroy(),this.data.destroy(),this.editing.destroy(),this.keystrokes.destroy()}).then(()=>this._context._removeEditor(this))}execute(...e){try{return this.commands.execute(...e)}catch(e){hn.b.rethrowUnexpectedError(e,this)}}}xn(jc,Ho);var zc={setData(e){this.data.set(e)},getData(e){return this.data.get(e)}};class Bc{getHtml(e){const t=document.implementation.createHTMLDocument("").createElement("div");return t.appendChild(e),t.innerHTML}}class Fc{constructor(e){this._domParser=new DOMParser,this._domConverter=new cr(e,{blockFillerMode:"nbsp"}),this._htmlWriter=new Bc}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"),n=t.createDocumentFragment(),o=t.body.childNodes;for(;o.length>0;)n.appendChild(o[0]);return n}}class Uc{constructor(e){this.editor=e,this._components=new Map}*names(){for(const e of this._components.values())yield e.originalName}add(e,t){this._components.set(Hc(e),{callback:t,originalName:e})}create(e){if(!this.has(e))throw new hn.b("componentfactory-item-missing: The required component is not registered in the factory.",this,{name:e});return this._components.get(Hc(e)).callback(this.editor.locale)}has(e){return this._components.has(Hc(e))}}function Hc(e){return String(e).toLowerCase()}class qc{constructor(){this.set("isFocused",!1),this.set("focusedElement",null),this._elements=new Set,this._nextEventLoopTimeout=null}add(e){if(this._elements.has(e))throw new hn.b("focusTracker-add-element-already-exist: This element is already tracked by FocusTracker.",this);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))}destroy(){this.stopListening()}_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)}}xn(qc,fr),xn(qc,Ho);class Wc{constructor(e){this.editor=e,this.componentFactory=new Uc(e),this.focusTracker=new qc,this._editableElementsMap=new Map,this.listenTo(e.editing.view.document,"layoutChanged",()=>this.update())}get element(){return null}update(){this.fire("update")}destroy(){this.stopListening(),this.focusTracker.destroy();for(const e of this._editableElementsMap.values())e.ckeditorInstance=null;this._editableElementsMap=new Map}setEditableElement(e,t){this._editableElementsMap.set(e,t),t.ckeditorInstance||(t.ckeditorInstance=this.editor)}getEditableElement(e="main"){return this._editableElementsMap.get(e)}getEditableElementsNames(){return this._editableElementsMap.keys()}get _editableElements(){return console.warn("editor-ui-deprecated-editable-elements: The EditorUI#_editableElements property has been deprecated and will be removed in the near future.",{editorUI:this}),this._editableElementsMap}}xn(Wc,gn);n(13);const $c=new WeakMap;function Gc(e){const{view:t,element:n,text:o,isDirectHost:i=!0}=e,r=t.document;$c.has(r)||($c.set(r,new Map),r.registerPostFixer(e=>Kc(r,e))),$c.get(r).set(n,{text:o,isDirectHost:i}),t.change(e=>Kc(r,e))}function Yc(e,t){return!!t.hasClass("ck-placeholder")&&(e.removeClass("ck-placeholder",t),!0)}function Kc(e,t){const n=$c.get(e);let o=!1;for(const[e,i]of n)Qc(t,e,i)&&(o=!0);return o}function Qc(e,t,n){const{text:o,isDirectHost:i}=n,r=i?t:function(e){if(1===e.childCount){const t=e.getChild(0);if(t.is("element")&&!t.is("uiElement"))return t}return null}(t);let s=!1;return!!r&&(n.hostElement=r,r.getAttribute("data-placeholder")!==o&&(e.setAttribute("data-placeholder",o,r),s=!0),!function(e){if(!e.isAttached())return!1;const t=!Array.from(e.getChildren()).some(e=>!e.is("uiElement")),n=e.document;if(!n.isFocused&&t)return!0;const o=n.selection.anchor;return!(!t||!o||o.parent===e)}(r)?Yc(e,r)&&(s=!0):function(e,t){return!t.hasClass("ck-placeholder")&&(e.addClass("ck-placeholder",t),!0)}(e,r)&&(s=!0),s)}class Jc extends Wc{constructor(e,t){var n;super(e),this.view=t,this._toolbarConfig=(n=e.config.get("toolbar"),Array.isArray(n)?{items:n}:n?Object.assign({items:[]},n):{items:[]})}init(){const e=this.editor,t=this.view,n=e.editing.view,o=t.editable,i=n.document.getRoot();t.editable.name=i.rootName,t.render();const r=o.element;this.setEditableElement(o.name,r),this.focusTracker.add(r),t.editable.bind("isFocused").to(this.focusTracker),n.attachDomRoot(r),this._initPlaceholder(),this._initToolbar(),this.fire("ready")}destroy(){const e=this.view;this.editor.editing.view.detachDomRoot(e.editable.name),e.destroy(),super.destroy()}_initToolbar(){const e=this.editor,t=this.view.toolbar;t.fillFromConfig(this._toolbarConfig.items,this.componentFactory),function({origin:e,originKeystrokeHandler:t,originFocusTracker:n,toolbar:o,beforeFocus:i,afterBlur:r}){n.add(o.element),t.set("Alt+F10",(e,t)=>{n.isFocused&&!o.focusTracker.isFocused&&(i&&i(),o.focus(),t())}),o.keystrokes.set("Esc",(t,n)=>{o.focusTracker.isFocused&&(e.focus(),r&&r(),n())})}({origin:e.editing.view,originFocusTracker:this.focusTracker,originKeystrokeHandler:e.keystrokes,toolbar:t})}_initPlaceholder(){const e=this.editor,t=e.editing.view,n=t.document.getRoot(),o=e.sourceElement,i=e.config.get("placeholder")||o&&"textarea"===o.tagName.toLowerCase()&&o.getAttribute("placeholder");i&&Gc({view:t,element:n,text:i,isDirectHost:!1})}}class Zc extends An{constructor(e=[]){super(e,{idProperty:"viewUid"}),this.on("add",(e,t,n)=>{this._renderViewIntoCollectionParent(t,n)}),this.on("remove",(e,t)=>{t.element&&this._parentElement&&t.element.remove()}),this._parentElement=null}destroy(){this.map(e=>e.destroy())}setParent(e){this._parentElement=e;for(const e of this)this._renderViewIntoCollectionParent(e)}delegate(...e){if(!e.length||!e.every(e=>"string"==typeof e))throw new hn.b("ui-viewcollection-delegate-wrong-events: All event names must be strings.",this);return{to:t=>{for(const n of this)for(const o of e)n.delegate(o).to(t);this.on("add",(n,o)=>{for(const n of e)o.delegate(n).to(t)}),this.on("remove",(n,o)=>{for(const n of e)o.stopDelegating(n,t)})}}}_renderViewIntoCollectionParent(e,t){e.isRendered||e.render(),e.element&&this._parentElement&&this._parentElement.insertBefore(e.element,this._parentElement.children[t])}}class Xc{constructor(e){Object.assign(this,ll(cl(e))),this._isRendered=!1,this._revertData=null}render(){const e=this._renderNode({intoFragment:!0});return this._isRendered=!0,e}apply(e){return this._revertData={children:[],bindings:[],attributes:{}},this._renderNode({node:e,isApplying:!0,revertData:this._revertData}),e}revert(e){if(!this._revertData)throw new hn.b("ui-template-revert-not-applied: Attempting to revert a template which has not been applied yet.",[this,e]);this._revertTemplateFromNode(e,this._revertData)}*getViews(){yield*function*e(t){if(t.children)for(const n of t.children)ml(n)?yield n:gl(n)&&(yield*e(n))}(this)}static bind(e,t){return{to:(n,o)=>new tl({eventNameOrFunction:n,attribute:n,observable:e,emitter:t,callback:o}),if:(n,o,i)=>new nl({observable:e,emitter:t,attribute:n,valueIfTrue:o,callback:i})}}static extend(e,t){if(e._isRendered)throw new hn.b("template-extend-render: Attempting to extend a template which has already been rendered.",[this,e]);!function e(t,n){n.attributes&&(t.attributes||(t.attributes={}),hl(t.attributes,n.attributes));n.eventListeners&&(t.eventListeners||(t.eventListeners={}),hl(t.eventListeners,n.eventListeners));n.text&&t.text.push(...n.text);if(n.children&&n.children.length){if(t.children.length!=n.children.length)throw new hn.b("ui-template-extend-children-mismatch: The number of children in extended definition does not match.",t);let o=0;for(const i of n.children)e(t.children[o++],i)}}(e,ll(cl(t)))}_renderNode(e){let t;if(t=e.node?this.tag&&this.text:this.tag?this.text:!this.text,t)throw new hn.b('ui-template-wrong-syntax: Node definition must have either "tag" or "text" when rendering a new Node.',this);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(""),ol(this.text)?this._bindToObservable({schema:this.text,updater:rl(t),data:e}):t.textContent=this.text.join(""),t}_renderAttributes(e){let t,n,o,i;if(!this.attributes)return;const r=e.node,s=e.revertData;for(t in this.attributes)if(o=r.getAttribute(t),n=this.attributes[t],s&&(s.attributes[t]=o),i=V(n[0])&&n[0].ns?n[0].ns:null,ol(n)){const a=i?n[0].value:n;s&&bl(t)&&a.unshift(o),this._bindToObservable({schema:a,updater:sl(r,t,i),data:e})}else"style"==t&&"string"!=typeof n[0]?this._renderStyleAttribute(n[0],e):(s&&o&&bl(t)&&n.unshift(o),n=n.map(e=>e&&e.value||e).reduce((e,t)=>e.concat(t),[]).reduce(ul,""),fl(n)||r.setAttributeNS(i,t,n))}_renderStyleAttribute(e,t){const n=t.node;for(const o in e){const i=e[o];ol(i)?this._bindToObservable({schema:[i],updater:al(n,o),data:t}):n.style[o]=i}}_renderElementChildren(e){const t=e.node,n=e.intoFragment?document.createDocumentFragment():t,o=e.isApplying;let i=0;for(const r of this.children)if(pl(r)){if(!o){r.setParent(t);for(const e of r)n.appendChild(e.element)}}else if(ml(r))o||(r.isRendered||r.render(),n.appendChild(r.element));else if(Xi(r))n.appendChild(r);else if(o){const t={children:[],bindings:[],attributes:{}};e.revertData.children.push(t),r._renderNode({node:n.childNodes[i++],isApplying:!0,revertData:t})}else n.appendChild(r.render());e.intoFragment&&t.appendChild(n)}_setUpListeners(e){if(this.eventListeners)for(const t in this.eventListeners){const n=this.eventListeners[t].map(n=>{const[o,i]=t.split("@");return n.activateDomEventListener(o,i,e)});e.revertData&&e.revertData.bindings.push(n)}}_bindToObservable({schema:e,updater:t,data:n}){const o=n.revertData;il(e,t,n);const i=e.filter(e=>!fl(e)).filter(e=>e.observable).map(o=>o.activateAttributeListener(e,t,n));o&&o.bindings.push(i)}_revertTemplateFromNode(e,t){for(const e of t.bindings)for(const t of e)t();if(t.text)e.textContent=t.text;else{for(const n in t.attributes){const o=t.attributes[n];null===o?e.removeAttribute(n):e.setAttribute(n,o)}for(let n=0;nil(e,t,n);return this.emitter.listenTo(this.observable,"change:"+this.attribute,o),()=>{this.emitter.stopListening(this.observable,"change:"+this.attribute,o)}}}class tl extends el{activateDomEventListener(e,t,n){const o=(e,n)=>{t&&!n.target.matches(t)||("function"==typeof this.eventNameOrFunction?this.eventNameOrFunction(n):this.observable.fire(this.eventNameOrFunction,n))};return this.emitter.listenTo(n.node,e,o),()=>{this.emitter.stopListening(n.node,e,o)}}}class nl extends el{getValue(e){return!fl(super.getValue(e))&&(this.valueIfTrue||!0)}}function ol(e){return!!e&&(e.value&&(e=e.value),Array.isArray(e)?e.some(ol):e instanceof el)}function il(e,t,{node:n}){let o=function(e,t){return e.map(e=>e instanceof el?e.getValue(t):e)}(e,n);o=1==e.length&&e[0]instanceof nl?o[0]:o.reduce(ul,""),fl(o)?t.remove():t.set(o)}function rl(e){return{set(t){e.textContent=t},remove(){e.textContent=""}}}function sl(e,t,n){return{set(o){e.setAttributeNS(n,t,o)},remove(){e.removeAttributeNS(n,t)}}}function al(e,t){return{set(n){e.style[t]=n},remove(){e.style[t]=null}}}function cl(e){return tn(e,e=>{if(e&&(e instanceof el||gl(e)||ml(e)||pl(e)))return e})}function ll(e){if("string"==typeof e?e=function(e){return{text:[e]}}(e):e.text&&function(e){Array.isArray(e.text)||(e.text=[e.text])}(e),e.on&&(e.eventListeners=function(e){for(const t in e)dl(e,t);return e}(e.on),delete e.on),!e.text){e.attributes&&function(e){for(const t in e)e[t].value&&(e[t].value=[].concat(e[t].value)),dl(e,t)}(e.attributes);const t=[];if(e.children)if(pl(e.children))t.push(e.children);else for(const n of e.children)gl(n)||ml(n)||Xi(n)?t.push(n):t.push(new Xc(n));e.children=t}return e}function dl(e,t){Array.isArray(e[t])||(e[t]=[e[t]])}function ul(e,t){return fl(t)?e:fl(e)?t:`${e} ${t}`}function hl(e,t){for(const n in t)e[n]?e[n].push(...t[n]):e[n]=t[n]}function fl(e){return!e&&0!==e}function ml(e){return e instanceof wl}function gl(e){return e instanceof Xc}function pl(e){return e instanceof Zc}function bl(e){return"class"==e||"style"==e}n(15);class wl{constructor(e){this.element=null,this.isRendered=!1,this.locale=e,this.t=e&&e.t,this._viewCollections=new An,this._unboundChildren=this.createCollection(),this._viewCollections.on("add",(t,n)=>{n.locale=e}),this.decorate("render")}get bindTemplate(){return this._bindTemplate?this._bindTemplate:this._bindTemplate=Xc.bind(this,this)}createCollection(e){const t=new Zc(e);return this._viewCollections.add(t),t}registerChild(e){yn(e)||(e=[e]);for(const t of e)this._unboundChildren.add(t)}deregisterChild(e){yn(e)||(e=[e]);for(const t of e)this._unboundChildren.remove(t)}setTemplate(e){this.template=new Xc(e)}extendTemplate(e){Xc.extend(this.template,e)}render(){if(this.isRendered)throw new hn.b("ui-view-render-already-rendered: This View has already been rendered.",this);this.template&&(this.element=this.template.render(),this.registerChild(this.template.getViews())),this.isRendered=!0}destroy(){this.stopListening(),this._viewCollections.map(e=>e.destroy()),this.template&&this.template._revertData&&this.template.revert(this.element)}}xn(wl,fr),xn(wl,Ho);var kl=function(e){return"string"==typeof e||!De(e)&&p(e)&&"[object String]"==f(e)};class _l extends Zc{constructor(e,t=[]){super(t),this.locale=e}attachToDom(){this._bodyCollectionContainer=new Xc({tag:"div",attributes:{class:["ck","ck-reset_all","ck-body","ck-rounded-corners"],dir:this.locale.uiLanguageDirection},children:this}).render();let e=document.querySelector(".ck-body-wrapper");e||(e=function(e,t,n={},o=[]){const i=n&&n.xmlns,r=i?e.createElementNS(i,t):e.createElement(t);for(const e in n)r.setAttribute(e,n[e]);!kl(o)&&yn(o)||(o=[o]);for(let t of o)kl(t)&&(t=e.createTextNode(t)),r.appendChild(t);return r}(document,"div",{class:"ck-body-wrapper"}),document.body.appendChild(e)),e.appendChild(this._bodyCollectionContainer)}detachFromDom(){super.destroy(),this._bodyCollectionContainer&&this._bodyCollectionContainer.remove();const e=document.querySelector(".ck-body-wrapper");e&&0==e.childElementCount&&e.remove()}}n(17);class vl extends wl{constructor(e){super(e),this.body=new _l(e)}render(){super.render(),this.body.attachToDom()}destroy(){return this.body.detachFromDom(),super.destroy()}}class yl extends wl{constructor(e,t,n){super(e),this.setTemplate({tag:"div",attributes:{class:["ck","ck-content","ck-editor__editable","ck-rounded-corners"],lang:e.contentLanguage,dir:e.contentLanguageDirection}}),this.name=null,this.set("isFocused",!1),this._editableElement=n,this._hasExternalElement=!!this._editableElement,this._editingView=t}render(){super.render(),this._hasExternalElement?this.template.apply(this.element=this._editableElement):this._editableElement=this.element,this.on("change:isFocused",()=>this._updateIsFocusedClasses()),this._updateIsFocusedClasses()}destroy(){this._hasExternalElement&&this.template.revert(this._editableElement),super.destroy()}_updateIsFocusedClasses(){const e=this._editingView;function t(t){e.change(n=>{const o=e.document.getRoot(t.name);n.addClass(t.isFocused?"ck-focused":"ck-blurred",o),n.removeClass(t.isFocused?"ck-blurred":"ck-focused",o)})}e.isRenderingInProgress?function n(o){e.once("change:isRenderingInProgress",(e,i,r)=>{r?n(o):t(o)})}(this):t(this)}}class xl extends yl{constructor(e,t,n){super(e,t,n),this.extendTemplate({attributes:{role:"textbox",class:"ck-editor__editable_inline"}})}render(){super.render();const e=this._editingView,t=this.t;e.change(n=>{const o=e.document.getRoot(this.name);n.setAttribute("aria-label",t("Rich Text Editor, %0",[this.name]),o)})}}class Al{constructor(e){if(Object.assign(this,e),e.actions&&e.keystrokeHandler)for(const t in e.actions){let n=e.actions[t];"string"==typeof n&&(n=[n]);for(const o of n)e.keystrokeHandler.set(o,(e,n)=>{this[t](),n()})}}get first(){return this.focusables.find(Cl)||null}get last(){return this.focusables.filter(Cl).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,n)=>{const o=t.element===this.focusTracker.focusedElement;return o&&(e=n),o}),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,n=this.focusables.length;if(!n)return null;if(null===t)return this[1===e?"first":"last"];let o=(t+n+e)%n;do{const t=this.focusables.get(o);if(Cl(t))return t;o=(o+n+e)%n}while(o!==t);return null}}function Cl(e){return!(!e.focus||"none"==ir.window.getComputedStyle(e.element).display)}class Tl extends wl{constructor(e){super(e),this.setTemplate({tag:"span",attributes:{class:["ck","ck-toolbar__separator"]}})}}class Pl{constructor(e,t){Pl._observerInstance||Pl._createObserver(),this._element=e,this._callback=t,Pl._addElementCallback(e,t),Pl._observerInstance.observe(e)}destroy(){Pl._deleteElementCallback(this._element,this._callback)}static _addElementCallback(e,t){Pl._elementCallbacks||(Pl._elementCallbacks=new Map);let n=Pl._elementCallbacks.get(e);n||(n=new Set,Pl._elementCallbacks.set(e,n)),n.add(t)}static _deleteElementCallback(e,t){const n=Pl._getElementCallbacks(e);n&&(n.delete(t),n.size||(Pl._elementCallbacks.delete(e),Pl._observerInstance.unobserve(e))),Pl._elementCallbacks&&!Pl._elementCallbacks.size&&(Pl._observerInstance=null,Pl._elementCallbacks=null)}static _getElementCallbacks(e){return Pl._elementCallbacks?Pl._elementCallbacks.get(e):null}static _createObserver(){let e;e="function"==typeof ir.window.ResizeObserver?ir.window.ResizeObserver:Sl,Pl._observerInstance=new e(e=>{for(const t of e){const e=Pl._getElementCallbacks(t.target);if(e)for(const n of e)n(t)}})}}Pl._observerInstance=null,Pl._elementCallbacks=null;class Sl{constructor(e){this._callback=e,this._elements=new Set,this._previousRects=new Map,this._periodicCheckTimeout=null}observe(e){this._elements.add(e),this._checkElementRectsAndExecuteCallback(),1===this._elements.size&&this._startPeriodicCheck()}unobserve(e){this._elements.delete(e),this._previousRects.delete(e),this._elements.size||this._stopPeriodicCheck()}_startPeriodicCheck(){const e=()=>{this._checkElementRectsAndExecuteCallback(),this._periodicCheckTimeout=setTimeout(e,100)};this.listenTo(ir.window,"resize",()=>{this._checkElementRectsAndExecuteCallback()}),this._periodicCheckTimeout=setTimeout(e,100)}_stopPeriodicCheck(){clearTimeout(this._periodicCheckTimeout),this.stopListening(),this._previousRects.clear()}_checkElementRectsAndExecuteCallback(){const e=[];for(const t of this._elements)this._hasRectChanged(t)&&e.push({target:t,contentRect:this._previousRects.get(t)});e.length&&this._callback(e)}_hasRectChanged(e){if(!e.ownerDocument.body.contains(e))return!1;const t=new os(e),n=this._previousRects.get(e),o=!n||!n.isEqual(t);return this._previousRects.set(e,t),o}}xn(Sl,fr);class El extends wl{constructor(e){super(e);const t=this.bindTemplate;this.set("isVisible",!1),this.set("position","se"),this.children=this.createCollection(),this.setTemplate({tag:"div",attributes:{class:["ck","ck-reset","ck-dropdown__panel",t.to("position",e=>"ck-dropdown__panel_"+e),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()}}}n(19);function Ml({element:e,target:t,positions:n,limiter:o,fitInViewport:i}){z(t)&&(t=t()),z(o)&&(o=o());const r=function(e){return e&&e.parentNode?e.offsetParent===ir.document.body?null:e.offsetParent:null}(e),s=new os(e),a=new os(t);let c,l;if(o||i){const e=function(e,t){const{elementRect:n,viewportRect:o}=t,i=n.getArea(),r=function(e,{targetRect:t,elementRect:n,limiterRect:o,viewportRect:i}){const r=[],s=n.getArea();for(const a of e){const e=Il(a,t,n);if(!e)continue;const[c,l]=e;let d=0,u=0;if(o)if(i){const e=o.getIntersection(i);e&&(d=e.getIntersectionArea(l))}else d=o.getIntersectionArea(l);i&&(u=i.getIntersectionArea(l));const h={positionName:c,positionRect:l,limiterIntersectArea:d,viewportIntersectArea:u};if(d===s)return[h];r.push(h)}return r}(e,t);if(o){const e=Nl(r.filter(({viewportIntersectArea:e})=>e===i),i);if(e)return e}return Nl(r,i)}(n,{targetRect:a,elementRect:s,limiterRect:o&&new os(o).getVisible(),viewportRect:i&&new os(ir.window)});[l,c]=e||Il(n[0],a,s)}else[l,c]=Il(n[0],a,s);let d=Ol(c);return r&&(d=function({left:e,top:t},n){const o=Ol(new os(n)),i=ts(n);return e-=o.left,t-=o.top,e+=n.scrollLeft,t+=n.scrollTop,e-=i.left,t-=i.top,{left:e,top:t}}(d,r)),{left:d.left,top:d.top,name:l}}function Il(e,t,n){const o=e(t,n);if(!o)return null;const{left:i,top:r,name:s}=o;return[s,n.clone().moveTo(i,r)]}function Nl(e,t){let n,o,i=0;for(const{positionName:r,positionRect:s,limiterIntersectArea:a,viewportIntersectArea:c}of e){if(a===t)return[r,s];const e=c**2+a**2;e>i&&(i=e,n=s,o=r)}return n?[o,n]:null}function Ol({left:e,top:t}){const{scrollX:n,scrollY:o}=ir.window;return{left:e+n,top:t+o}}class Rl extends wl{constructor(e,t,n){super(e);const o=this.bindTemplate;this.buttonView=t,this.panelView=n,this.set("isOpen",!1),this.set("isEnabled",!0),this.set("class"),this.set("id"),this.set("panelPosition","auto"),this.keystrokes=new Lc,this.setTemplate({tag:"div",attributes:{class:["ck","ck-dropdown",o.to("class"),o.if("isEnabled","ck-disabled",e=>!e)],id:o.to("id"),"aria-describedby":o.to("ariaDescribedById")},children:[t,n]}),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.on("change:isOpen",()=>{this.isOpen&&("auto"===this.panelPosition?this.panelView.position=Rl._getOptimalPosition({element:this.panelView.element,target:this.buttonView.element,fitInViewport:!0,positions:this._panelPositions}).name:this.panelView.position=this.panelPosition)}),this.keystrokes.listenTo(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()}get _panelPositions(){const{southEast:e,southWest:t,northEast:n,northWest:o}=Rl.defaultPanelPositions;return"ltr"===this.locale.uiLanguageDirection?[e,t,n,o]:[t,e,o,n]}}Rl.defaultPanelPositions={southEast:e=>({top:e.bottom,left:e.left,name:"se"}),southWest:(e,t)=>({top:e.bottom,left:e.left-t.width+e.width,name:"sw"}),northEast:(e,t)=>({top:e.top-t.height,left:e.left,name:"ne"}),northWest:(e,t)=>({top:e.bottom-t.height,left:e.left-t.width+e.width,name:"nw"})},Rl._getOptimalPosition=Ml;n(21);class Dl extends wl{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").querySelector("svg"),t=e.getAttribute("viewBox");for(t&&(this.viewBox=t),this.element.innerHTML="";e.childNodes.length>0;)this.element.appendChild(e.childNodes[0])}}_colorFillPaths(){this.fillColor&&this.element.querySelectorAll(".ck-icon__fill").forEach(e=>{e.style.fill=this.fillColor})}}n(23);class Ll extends wl{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")}]}]})}}n(25);class Vl extends wl{constructor(e){super(e);const t=this.bindTemplate,n=dn();this.set("class"),this.set("labelStyle"),this.set("icon"),this.set("isEnabled",!0),this.set("isOn",!1),this.set("isVisible",!0),this.set("isToggleable",!1),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.set("withKeystroke",!1),this.children=this.createCollection(),this.tooltipView=this._createTooltipView(),this.labelView=this._createLabelView(n),this.iconView=new Dl,this.iconView.extendTemplate({attributes:{class:"ck-button__icon"}}),this.keystrokeView=this._createKeystrokeView(),this.bind("_tooltipString").to(this,"tooltip",this,"label",this,"keystroke",this._getTooltipString.bind(this)),this.setTemplate({tag:"button",attributes:{class:["ck","ck-button",t.to("class"),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"),t.if("withKeystroke","ck-button_with-keystroke")],type:t.to("type",e=>e||"button"),tabindex:t.to("tabindex"),"aria-labelledby":"ck-editor__aria-label_"+n,"aria-disabled":t.if("isEnabled",!0,e=>!e),"aria-pressed":t.to("isOn",e=>!!this.isToggleable&&String(e))},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),this.withKeystroke&&this.children.add(this.keystrokeView)}focus(){this.element.focus()}_createTooltipView(){const e=new Ll;return e.bind("text").to(this,"_tooltipString"),e.bind("position").to(this,"tooltipPosition"),e}_createLabelView(e){const t=new wl,n=this.bindTemplate;return t.setTemplate({tag:"span",attributes:{class:["ck","ck-button__label"],style:n.to("labelStyle"),id:"ck-editor__aria-label_"+e},children:[{text:this.bindTemplate.to("label")}]}),t}_createKeystrokeView(){const e=new wl;return e.setTemplate({tag:"span",attributes:{class:["ck","ck-button__keystroke"]},children:[{text:this.bindTemplate.to("keystroke",e=>wi(e))}]}),e}_getTooltipString(e,t,n){return e?"string"==typeof e?e:(n&&(n=wi(n)),e instanceof Function?e(t,n):`${t}${n?` (${n})`:""}`):""}}var jl='';class zl extends Vl{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 Dl;return e.content=jl,e.extendTemplate({attributes:{class:"ck-dropdown__arrow"}}),e}}n(27);class Bl extends wl{constructor(){super(),this.items=this.createCollection(),this.focusTracker=new qc,this.keystrokes=new Lc,this._focusCycler=new Al({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 Fl extends wl{constructor(e){super(e),this.children=this.createCollection(),this.setTemplate({tag:"li",attributes:{class:["ck","ck-list__item"]},children:this.children})}focus(){this.children.first.focus()}}class Ul extends wl{constructor(e){super(e),this.setTemplate({tag:"li",attributes:{class:["ck","ck-list__separator"]}})}}n(29);class Hl extends Vl{constructor(e){super(e),this.isToggleable=!0,this.toggleSwitchView=this._createToggleView(),this.extendTemplate({attributes:{class:"ck-switchbutton"}})}render(){super.render(),this.children.add(this.toggleSwitchView)}_createToggleView(){const e=new wl;return e.setTemplate({tag:"span",attributes:{class:["ck","ck-button__toggle"]},children:[{tag:"span",attributes:{class:["ck","ck-button__toggle__inner"]}}]}),e}}function ql({emitter:e,activator:t,callback:n,contextElements:o}){e.listenTo(document,"mousedown",(e,i)=>{if(!t())return;const r="function"==typeof i.composedPath?i.composedPath():[];for(const e of o)if(e.contains(i.target)||r.includes(e))return;n()})}n(31),n(33);function Wl(e,t=zl){const n=new t(e),o=new El(e),i=new Rl(e,n,o);return n.bind("isEnabled").to(i),n instanceof zl?n.bind("isOn").to(i,"isOpen"):n.arrowView.bind("isOn").to(i,"isOpen"),function(e){(function(e){e.on("render",()=>{ql({emitter:e,activator:()=>e.isOpen,callback:()=>{e.isOpen=!1},contextElements:[e.element]})})})(e),function(e){e.on("execute",t=>{t.source instanceof Hl||(e.isOpen=!1)})}(e),function(e){e.keystrokes.set("arrowdown",(t,n)=>{e.isOpen&&(e.panelView.focus(),n())}),e.keystrokes.set("arrowup",(t,n)=>{e.isOpen&&(e.panelView.focusLast(),n())})}(e)}(i),i}function $l(e,t){const n=e.locale,o=n.t,i=e.toolbarView=new Yl(n);i.set("ariaLabel",o("Dropdown toolbar")),e.extendTemplate({attributes:{class:["ck-toolbar-dropdown"]}}),t.map(e=>i.items.add(e)),e.panelView.children.add(i),i.items.delegate("execute").to(e)}function Gl(e,t){const n=e.locale,o=e.listView=new Bl(n);o.items.bindTo(t).using(({type:e,model:t})=>{if("separator"===e)return new Ul(n);if("button"===e||"switchbutton"===e){const o=new Fl(n);let i;return i="button"===e?new Vl(n):new Hl(n),i.bind(...Object.keys(t)).to(t),i.delegate("execute").to(o),o.children.add(i),o}}),e.panelView.children.add(o),o.items.delegate("execute").to(e)}n(35);class Yl extends wl{constructor(e,t){super(e);const n=this.bindTemplate,o=this.t;var i;this.options=t||{},this.set("ariaLabel",o("Editor toolbar")),this.set("maxWidth","auto"),this.items=this.createCollection(),this.focusTracker=new qc,this.keystrokes=new Lc,this.set("class"),this.set("isCompact",!1),this.itemsView=new Kl(e),this.children=this.createCollection(),this.children.add(this.itemsView),this.focusables=this.createCollection(),this._focusCycler=new Al({focusables:this.focusables,focusTracker:this.focusTracker,keystrokeHandler:this.keystrokes,actions:{focusPrevious:["arrowleft","arrowup"],focusNext:["arrowright","arrowdown"]}}),this.setTemplate({tag:"div",attributes:{class:["ck","ck-toolbar",n.to("class"),n.if("isCompact","ck-toolbar_compact")],role:"toolbar","aria-label":n.to("ariaLabel"),style:{maxWidth:n.to("maxWidth")}},children:this.children,on:{mousedown:(i=this,i.bindTemplate.to(e=>{e.target===i.element&&e.preventDefault()}))}}),this._behavior=this.options.shouldGroupWhenFull?new Jl(this):new Ql(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),this._behavior.render(this)}destroy(){return this._behavior.destroy(),super.destroy()}focus(){this._focusCycler.focusFirst()}focusLast(){this._focusCycler.focusLast()}fillFromConfig(e,t){this.items.addMany(e.map(e=>"|"==e?new Tl:t.has(e)?t.create(e):void console.warn(Object(hn.a)("toolbarview-item-unavailable: The requested toolbar item is unavailable."),{name:e})).filter(e=>void 0!==e))}}class Kl extends wl{constructor(e){super(e),this.children=this.createCollection(),this.setTemplate({tag:"div",attributes:{class:["ck","ck-toolbar__items"]},children:this.children})}}class Ql{constructor(e){const t=e.bindTemplate;e.set("isVertical",!1),e.itemsView.children.bindTo(e.items).using(e=>e),e.focusables.bindTo(e.items).using(e=>e),e.extendTemplate({attributes:{class:[t.if("isVertical","ck-toolbar_vertical")]}})}render(){}destroy(){}}class Jl{constructor(e){this.view=e,this.viewChildren=e.children,this.viewFocusables=e.focusables,this.viewItemsView=e.itemsView,this.viewFocusTracker=e.focusTracker,this.viewLocale=e.locale,this.ungroupedItems=e.createCollection(),this.groupedItems=e.createCollection(),this.groupedItemsDropdown=this._createGroupedItemsDropdown(),this.resizeObserver=null,this.cachedPadding=null,this.shouldUpdateGroupingOnNextResize=!1,e.itemsView.children.bindTo(this.ungroupedItems).using(e=>e),this.ungroupedItems.on("add",this._updateFocusCycleableItems.bind(this)),this.ungroupedItems.on("remove",this._updateFocusCycleableItems.bind(this)),e.children.on("add",this._updateFocusCycleableItems.bind(this)),e.children.on("remove",this._updateFocusCycleableItems.bind(this)),e.items.on("change",(e,t)=>{const n=t.index;for(const e of t.removed)n>=this.ungroupedItems.length?this.groupedItems.remove(e):this.ungroupedItems.remove(e);for(let e=n;ethis.ungroupedItems.length?this.groupedItems.add(o,e-this.ungroupedItems.length):this.ungroupedItems.add(o,e)}this._updateGrouping()}),e.extendTemplate({attributes:{class:["ck-toolbar_grouping"]}})}render(e){this.viewElement=e.element,this._enableGroupingOnResize(),this._enableGroupingOnMaxWidthChange(e)}destroy(){this.groupedItemsDropdown.destroy(),this.resizeObserver.destroy()}_updateGrouping(){if(!this.viewElement.ownerDocument.body.contains(this.viewElement))return;if(!this.viewElement.offsetParent)return void(this.shouldUpdateGroupingOnNextResize=!0);const e=this.groupedItems.length;let t;for(;this._areItemsOverflowing;)this._groupLastItem(),t=!0;if(!t&&this.groupedItems.length){for(;this.groupedItems.length&&!this._areItemsOverflowing;)this._ungroupFirstItem();this._areItemsOverflowing&&this._groupLastItem()}this.groupedItems.length!==e&&this.view.fire("groupedItemsUpdate")}get _areItemsOverflowing(){if(!this.ungroupedItems.length)return!1;const e=this.viewElement,t=this.viewLocale.uiLanguageDirection,n=new os(e.lastChild),o=new os(e);if(!this.cachedPadding){const n=ir.window.getComputedStyle(e),o="ltr"===t?"paddingRight":"paddingLeft";this.cachedPadding=Number.parseInt(n[o])}return"ltr"===t?n.right>o.right-this.cachedPadding:n.left{e&&e===t.contentRect.width&&!this.shouldUpdateGroupingOnNextResize||(this.shouldUpdateGroupingOnNextResize=!1,this._updateGrouping(),e=t.contentRect.width)}),this._updateGrouping()}_enableGroupingOnMaxWidthChange(e){e.on("change:maxWidth",()=>{this._updateGrouping()})}_groupLastItem(){this.groupedItems.length||(this.viewChildren.add(new Tl),this.viewChildren.add(this.groupedItemsDropdown),this.viewFocusTracker.add(this.groupedItemsDropdown.element)),this.groupedItems.add(this.ungroupedItems.remove(this.ungroupedItems.last),0)}_ungroupFirstItem(){this.ungroupedItems.add(this.groupedItems.remove(this.groupedItems.first)),this.groupedItems.length||(this.viewChildren.remove(this.groupedItemsDropdown),this.viewChildren.remove(this.viewChildren.last),this.viewFocusTracker.remove(this.groupedItemsDropdown.element))}_createGroupedItemsDropdown(){const e=this.viewLocale,t=e.t,n=Wl(e);return n.class="ck-toolbar__grouped-dropdown",n.panelPosition="ltr"===e.uiLanguageDirection?"sw":"se",$l(n,[]),n.buttonView.set({label:t("Show more items"),tooltip:!0,icon:''}),n.toolbarView.items.bindTo(this.groupedItems).using(e=>e),n}_updateFocusCycleableItems(){this.viewFocusables.clear(),this.ungroupedItems.map(e=>{this.viewFocusables.add(e)}),this.groupedItems.length&&this.viewFocusables.add(this.groupedItemsDropdown)}}class Zl extends vl{constructor(e,t,n={}){super(e),this.toolbar=new Yl(e,{shouldGroupWhenFull:n.shouldToolbarGroupWhenFull}),this.editable=new xl(e,t,n.editableElement),this.toolbar.extendTemplate({attributes:{class:["ck-reset_all","ck-rounded-corners"],dir:e.uiLanguageDirection}})}render(){super.render(),this.registerChild([this.toolbar,this.editable])}}class Xl extends jc{constructor(e,t){super(t),nn(e)&&(this.sourceElement=e,function(e){const t=e.sourceElement;if(t){if(t.ckeditorInstance)throw new hn.b("editor-source-element-already-used: The DOM element cannot be used to create multiple editor instances.",e);t.ckeditorInstance=e,e.once("destroy",()=>{delete t.ckeditorInstance})}}(this)),this.data.processor=new Fc(this.data.viewDocument),this.model.document.createRoot();const n=!this.config.get("toolbar.shouldNotGroupWhenFull"),o=new Zl(this.locale,this.editing.view,{editableElement:this.sourceElement,shouldToolbarGroupWhenFull:n});this.ui=new Jc(this,o)}destroy(){const e=this.getData();return this.ui.destroy(),super.destroy().then(()=>{this.sourceElement&&function(e,t){e instanceof HTMLTextAreaElement&&(e.value=t),e.innerHTML=t}(this.sourceElement,e)})}static create(e,t={}){return new Promise(n=>{const o=nn(e);if(o&&"TEXTAREA"===e.tagName)throw new hn.b("editor-wrong-element: This type of editor cannot be initialized inside