\").replace(/^\\s/,\" \").replace(/\\s$/,\" \").replace(/\\s\\s/g,\" \")).indexOf(\"
\")>-1&&(t=`
${t}
`),t}(i.getData(\"text/plain\"))),o=this._htmlDataProcessor.toView(o),this.fire(\"inputTransformation\",{content:o,dataTransfer:i}),n.scrollToTheSelection()},{priority:\"low\"}),this.listenTo(this,\"inputTransformation\",(t,e)=>{if(!e.content.isEmpty){const t=this.editor.data,n=this.editor.model,i=t.toModel(e.content,\"$clipboardHolder\");if(0==i.childCount)return;n.insertContent(i)}},{priority:\"low\"}),this.listenTo(i,\"copy\",o,{priority:\"low\"}),this.listenTo(i,\"cut\",(e,n)=>{t.isReadOnly?n.preventDefault():o(e,n)},{priority:\"low\"}),this.listenTo(i,\"clipboardOutput\",(n,i)=>{i.content.isEmpty||(i.dataTransfer.setData(\"text/html\",this._htmlDataProcessor.toData(i.content)),i.dataTransfer.setData(\"text/plain\",function t(e){let n=\"\";if(e.is(\"text\")||e.is(\"textProxy\"))n=e.data;else if(e.is(\"img\")&&e.hasAttribute(\"alt\"))n=e.getAttribute(\"alt\");else{let i=null;for(const o of e.getChildren()){const e=t(o);i&&(i.is(\"containerElement\")||o.is(\"containerElement\"))&&(Xl.includes(i.name)||Xl.includes(o.name)?n+=\"\\n\":n+=\"\\n\\n\"),n+=e,i=o}}return n}(i.content))),\"cut\"==i.method&&t.model.deleteContent(e.selection)},{priority:\"low\"})}}class ed{constructor(t){this.editor=t,this.set(\"value\",void 0),this.set(\"isEnabled\",!1),this._disableStack=new Set,this.decorate(\"execute\"),this.listenTo(this.editor.model.document,\"change\",()=>{this.refresh()}),this.on(\"execute\",t=>{this.isEnabled||t.stop()},{priority:\"high\"}),this.listenTo(t,\"change:isReadOnly\",(t,e,n)=>{n?this.forceDisabled(\"readOnlyMode\"):this.clearForceDisabled(\"readOnlyMode\")})}refresh(){this.isEnabled=!0}forceDisabled(t){this._disableStack.add(t),1==this._disableStack.size&&(this.on(\"set:isEnabled\",nd,{priority:\"highest\"}),this.isEnabled=!1)}clearForceDisabled(t){this._disableStack.delete(t),0==this._disableStack.size&&(this.off(\"set:isEnabled\",nd),this.refresh())}execute(){}destroy(){this.stopListening()}}function nd(t){t.return=!1,t.stop()}function*id(t,e){for(const n of e)n&&t.getAttributeProperties(n[0]).copyOnEnter&&(yield n)}ci(ed,Fi);class od extends ed{execute(){const t=this.editor.model,e=t.document;t.change(n=>{!function(t,e,n,i){const o=n.isCollapsed,r=n.getFirstRange(),s=r.start.parent,a=r.end.parent;if(i.isLimit(s)||i.isLimit(a))return void(o||s!=a||t.deleteContent(n));if(o){const t=id(e.model.schema,n.getAttributes());rd(e,r.start),e.setSelectionAttribute(t)}else{const i=!(r.start.isAtStart&&r.end.isAtEnd),o=s==a;t.deleteContent(n,{leaveUnmerged:i}),i&&(o?rd(e,n.focus):e.setSelection(a,0))}}(this.editor.model,n,e.selection,t.schema),this.fire(\"afterExecute\",{writer:n})})}}function rd(t,e){t.split(e),t.setSelection(e.parent.nextSibling,0)}class sd extends ur{constructor(t){super(t);const e=this.document;e.on(\"keydown\",(t,n)=>{if(this.isEnabled&&n.keyCode==bo.enter){let i;e.once(\"enter\",t=>i=t,{priority:\"highest\"}),e.fire(\"enter\",new Xr(e,n.domEvent,{isSoft:n.shiftKey})),i&&i.stop.called&&t.stop()}})}observe(){}}class ad extends Kl{static get pluginName(){return\"Enter\"}init(){const t=this.editor,e=t.editing.view,n=e.document;e.addObserver(sd),t.commands.add(\"enter\",new od(t)),this.listenTo(n,\"enter\",(n,i)=>{i.preventDefault(),i.isSoft||(t.execute(\"enter\"),e.scrollToTheSelection())},{priority:\"low\"})}}class cd extends ed{execute(){const t=this.editor.model,e=t.document;t.change(n=>{!function(t,e,n){const i=n.isCollapsed,o=n.getFirstRange(),r=o.start.parent,s=o.end.parent,a=r==s;if(i){const i=id(t.schema,n.getAttributes());ld(e,o.end),e.removeSelectionAttribute(n.getAttributeKeys()),e.setSelectionAttribute(i)}else{const i=!(o.start.isAtStart&&o.end.isAtEnd);t.deleteContent(n,{leaveUnmerged:i}),a?ld(e,n.focus):i&&e.setSelection(s,0)}}(t,n,e.selection),this.fire(\"afterExecute\",{writer:n})})}refresh(){const t=this.editor.model,e=t.document;this.isEnabled=function(t,e){if(e.rangeCount>1)return!1;const n=e.anchor;if(!n||!t.checkChild(n,\"softBreak\"))return!1;const i=e.getFirstRange(),o=i.start.parent,r=i.end.parent;if((dd(o,t)||dd(r,t))&&o!==r)return!1;return!0}(t.schema,e.selection)}}function ld(t,e){const n=t.createElement(\"softBreak\");t.insert(n,e),t.setSelection(n,\"after\")}function dd(t,e){return!t.is(\"rootElement\")&&(e.isLimit(t)||dd(t.parent,e))}class hd extends Kl{static get pluginName(){return\"ShiftEnter\"}init(){const t=this.editor,e=t.model.schema,n=t.conversion,i=t.editing.view,o=i.document;e.register(\"softBreak\",{allowWhere:\"$text\",isInline:!0}),n.for(\"upcast\").elementToElement({model:\"softBreak\",view:\"br\"}),n.for(\"downcast\").elementToElement({model:\"softBreak\",view:(t,e)=>e.createEmptyElement(\"br\")}),i.addObserver(sd),t.commands.add(\"shiftEnter\",new cd(t)),this.listenTo(o,\"enter\",(e,n)=>{n.preventDefault(),n.isSoft&&(t.execute(\"shiftEnter\"),i.scrollToTheSelection())},{priority:\"low\"})}}class ud{constructor(t,e=20){this.model=t,this.size=0,this.limit=e,this.isLocked=!1,this._changeCallback=((t,e)=>{\"transparent\"!=e.type&&e!==this._batch&&this._reset(!0)}),this._selectionChangeCallback=(()=>{this._reset()}),this.model.document.on(\"change\",this._changeCallback),this.model.document.selection.on(\"change:range\",this._selectionChangeCallback),this.model.document.selection.on(\"change:attribute\",this._selectionChangeCallback)}get batch(){return this._batch||(this._batch=this.model.createBatch()),this._batch}input(t){this.size+=t,this.size>=this.limit&&this._reset(!0)}lock(){this.isLocked=!0}unlock(){this.isLocked=!1}destroy(){this.model.document.off(\"change\",this._changeCallback),this.model.document.selection.off(\"change:range\",this._selectionChangeCallback),this.model.document.selection.off(\"change:attribute\",this._selectionChangeCallback)}_reset(t){this.isLocked&&!t||(this._batch=null,this.size=0)}}class fd extends ed{constructor(t,e){super(t),this._buffer=new ud(t.model,e),this._batches=new WeakSet}get buffer(){return this._buffer}destroy(){super.destroy(),this._buffer.destroy()}execute(t={}){const e=this.editor.model,n=e.document,i=t.text||\"\",o=i.length,r=t.range||n.selection.getFirstRange(),s=t.resultRange;e.enqueueChange(this._buffer.batch,t=>{const a=r.isCollapsed;this._buffer.lock(),e.deleteContent(e.createSelection(r)),i&&e.insertContent(t.createText(i,n.selection.getAttributes()),r.start),s?t.setSelection(s):a&&t.setSelection(r.start.getShiftedBy(o)),this._buffer.unlock(),this._buffer.input(o),this._batches.add(this._buffer.batch)})}}function md(t){let e=null;const n=t.model,i=t.editing.view,o=t.commands.get(\"input\");function r(t){const r=n.document,a=i.document.isComposing,c=e&&e.isEqual(r.selection);e=null,o.isEnabled&&(function(t){if(t.ctrlKey)return!0;return gd.includes(t.keyCode)}(t)||r.selection.isCollapsed||a&&229===t.keyCode||!a&&229===t.keyCode&&c||s())}function s(){const t=o.buffer;t.lock(),n.enqueueChange(t.batch,()=>{n.deleteContent(n.document.selection)}),t.unlock()}mo.isAndroid?i.document.on(\"beforeinput\",(t,e)=>r(e),{priority:\"lowest\"}):i.document.on(\"keydown\",(t,e)=>r(e),{priority:\"lowest\"}),i.document.on(\"compositionstart\",function(){const t=n.document,e=1!==t.selection.rangeCount||t.selection.getFirstRange().isFlat;if(t.selection.isCollapsed||e)return;s()},{priority:\"lowest\"}),i.document.on(\"compositionend\",()=>{e=n.createSelection(n.document.selection)},{priority:\"lowest\"})}const gd=[wo(\"arrowUp\"),wo(\"arrowRight\"),wo(\"arrowDown\"),wo(\"arrowLeft\"),9,16,17,18,19,20,27,33,34,35,36,45,91,93,144,145,173,174,175,176,177,178,179,255];for(let t=112;t<=135;t++)gd.push(t);function pd(t){if(t.newChildren.length-t.oldChildren.length!=1)return;const e=function(t,e){const n=[];let i,o=0;return t.forEach(t=>{\"equal\"==t?(r(),o++):\"insert\"==t?(s(\"insert\")?i.values.push(e[o]):(r(),i={type:\"insert\",index:o,values:[e[o]]}),o++):s(\"delete\")?i.howMany++:(r(),i={type:\"delete\",index:o,howMany:1})}),r(),n;function r(){i&&(n.push(i),i=null)}function s(t){return i&&i.type==t}}(Qo(t.oldChildren,t.newChildren,bd),t.newChildren);if(e.length>1)return;const n=e[0];return n.values[0]&&n.values[0].is(\"text\")?n:void 0}function bd(t,e){return t&&t.is(\"text\")&&e&&e.is(\"text\")?t.data===e.data:t===e}class wd{constructor(t){this.editor=t,this.editing=this.editor.editing}handle(t,e){if(function(t){if(0==t.length)return!1;for(const e of t)if(\"children\"===e.type&&!pd(e))return!0;return!1}(t))this._handleContainerChildrenMutations(t,e);else for(const n of t)this._handleTextMutation(n,e),this._handleTextNodeInsertion(n)}_handleContainerChildrenMutations(t,e){const n=function(t){const e=t.map(t=>t.node).reduce((t,e)=>t.getCommonAncestor(e,{includeSelf:!0}));if(!e)return;return e.getAncestors({includeSelf:!0,parentFirst:!0}).find(t=>t.is(\"containerElement\")||t.is(\"rootElement\"))}(t);if(!n)return;const i=this.editor.editing.view.domConverter.mapViewToDom(n),o=new rr,r=this.editor.data.toModel(o.domToView(i)).getChild(0),s=this.editor.editing.mapper.toModelElement(n);if(!s)return;const a=Array.from(r.getChildren()),c=Array.from(s.getChildren()),l=a[a.length-1],d=c[c.length-1];l&&l.is(\"softBreak\")&&d&&!d.is(\"softBreak\")&&a.pop();const h=this.editor.model.schema;if(!kd(a,h)||!kd(c,h))return;const u=a.map(t=>t.is(\"text\")?t.data:\"@\").join(\"\").replace(/\\u00A0/g,\" \"),f=c.map(t=>t.is(\"text\")?t.data:\"@\").join(\"\").replace(/\\u00A0/g,\" \");if(f===u)return;const m=Qo(f,u),{firstChangeAt:g,insertions:p,deletions:b}=_d(m);let w=null;e&&(w=this.editing.mapper.toModelRange(e.getFirstRange()));const k=u.substr(g,p),_=this.editor.model.createRange(this.editor.model.createPositionAt(s,g),this.editor.model.createPositionAt(s,g+b));this.editor.execute(\"input\",{text:k,range:_,resultRange:w})}_handleTextMutation(t,e){if(\"text\"!=t.type)return;const n=t.newText.replace(/\\u00A0/g,\" \"),i=t.oldText.replace(/\\u00A0/g,\" \");if(i===n)return;const o=Qo(i,n),{firstChangeAt:r,insertions:s,deletions:a}=_d(o);let c=null;e&&(c=this.editing.mapper.toModelRange(e.getFirstRange()));const l=this.editing.view.createPositionAt(t.node,r),d=this.editing.mapper.toModelPosition(l),h=this.editor.model.createRange(d,d.getShiftedBy(a)),u=n.substr(r,s);this.editor.execute(\"input\",{text:u,range:h,resultRange:c})}_handleTextNodeInsertion(t){if(\"children\"!=t.type)return;const e=pd(t),n=this.editing.view.createPositionAt(t.node,e.index),i=this.editing.mapper.toModelPosition(n),o=e.values[0].data;this.editor.execute(\"input\",{text:o.replace(/\\u00A0/g,\" \"),range:this.editor.model.createRange(i)})}}function kd(t,e){return t.every(t=>e.isInline(t))}function _d(t){let e=null,n=null;for(let i=0;i