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o=r.parentOffset===r.parent.nodeSize-2,s=r.parent.textContent.endsWith(`
`);return!o||!s?!1:e.chain().command(({tr:a})=>(a.delete(r.pos-2,r.pos),!0)).exitCode().run()},ArrowDown:({editor:e})=>{if(!this.options.exitOnArrowDown)return!1;const{state:t}=e,{selection:n,doc:r}=t,{$from:i,empty:o}=n;if(!o||i.parent.type!==this.type||i.parentOffset!==i.parent.nodeSize-2)return!1;const s=i.after();return s===void 0?!1:r.nodeAt(s)?e.commands.command(({tr:a})=>(a.setSelection(Oe.near(r.resolve(s))),!0)):e.commands.exitCode()}}},addInputRules(){return[Gh({find:Kq,type:this.type,getAttributes:e=>({language:e[1]})}),Gh({find:Qq,type:this.type,getAttributes:e=>({language:e[1]})})]},addProseMirrorPlugins(){return[new je({key:new Je("codeBlockVSCodeHandler"),props:{handlePaste:(e,t)=>{if(!t.clipboardData||this.editor.isActive(this.type.name))return!1;const n=t.clipboardData.getData("text/plain"),r=t.clipboardData.getData("vscode-editor-data"),i=r?JSON.parse(r):void 0,o=i==null?void 0:i.mode;if(!n||!o)return!1;const{tr:s,schema:a}=e.state,l=a.text(n.replace(/\r\n?/g,`
`));return s.replaceSelectionWith(this.type.create({language:o},l)),s.selection.$from.parent.type!==this.type&&s.setSelection(ge.near(s.doc.resolve(Math.max(0,s.selection.from-2)))),s.setMeta("paste",!0),e.dispatch(s),!0}}})]}}),Zq=st.create({name:"doc",topNode:!0,content:"block+"});function Xq(e={}){return new je({view(t){return new Jq(t,e)}})}class Jq{constructor(t,n){var r;this.editorView=t,this.cursorPos=null,this.element=null,this.timeout=-1,this.width=(r=n.width)!==null&&r!==void 0?r:1,this.color=n.color===!1?void 0:n.color||"black",this.class=n.class,this.handlers=["dragover","dragend","drop","dragleave"].map(i=>{let o=s=>{this[i](s)};return t.dom.addEventListener(i,o),{name:i,handler:o}})}destroy(){this.handlers.forEach(({name:t,handler:n})=>this.editorView.dom.removeEventListener(t,n))}update(t,n){this.cursorPos!=null&&n.doc!=t.state.doc&&(this.cursorPos>t.state.doc.content.size?this.setCursor(null):this.updateOverlay())}setCursor(t){t!=this.cursorPos&&(this.cursorPos=t,t==null?(this.element.parentNode.removeChild(this.element),this.element=null):this.updateOverlay())}updateOverlay(){let t=this.editorView.state.doc.resolve(this.cursorPos),n=!t.parent.inlineContent,r;if(n){let a=t.nodeBefore,l=t.nodeAfter;if(a||l){let c=this.editorView.nodeDOM(this.cursorPos-(a?a.nodeSize:0));if(c){let u=c.getBoundingClientRect(),d=a?u.bottom:u.top;a&&l&&(d=(d+this.editorView.nodeDOM(this.cursorPos).getBoundingClientRect().top)/2),r={left:u.left,right:u.right,top:d-this.width/2,bottom:d+this.width/2}}}}if(!r){let a=this.editorView.coordsAtPos(this.cursorPos);r={left:a.left-this.width/2,right:a.left+this.width/2,top:a.top,bottom:a.bottom}}let i=this.editorView.dom.offsetParent;this.element||(this.element=i.appendChild(document.createElement("div")),this.class&&(this.element.className=this.class),this.element.style.cssText="position: absolute; z-index: 50; pointer-events: none;",this.color&&(this.element.style.backgroundColor=this.color)),this.element.classList.toggle("prosemirror-dropcursor-block",n),this.element.classList.toggle("prosemirror-dropcursor-inline",!n);let o,s;if(!i||i==document.body&&getComputedStyle(i).position=="static")o=-pageXOffset,s=-pageYOffset;else{let a=i.getBoundingClientRect();o=a.left-i.scrollLeft,s=a.top-i.scrollTop}this.element.style.left=r.left-o+"px",this.element.style.top=r.top-s+"px",this.element.style.width=r.right-r.left+"px",this.element.style.height=r.bottom-r.top+"px"}scheduleRemoval(t){clearTimeout(this.timeout),this.timeout=setTimeout(()=>this.setCursor(null),t)}dragover(t){if(!this.editorView.editable)return;let n=this.editorView.posAtCoords({left:t.clientX,top:t.clientY}),r=n&&n.inside>=0&&this.editorView.state.doc.nodeAt(n.inside),i=r&&r.type.spec.disableDropCursor,o=typeof i=="function"?i(this.editorView,n,t):i;if(n&&!o){let s=n.pos;if(this.editorView.dragging&&this.editorView.dragging.slice){let a=S0(this.editorView.state.doc,s,this.editorView.dragging.slice);a!=null&&(s=a)}this.setCursor(s),this.scheduleRemoval(5e3)}}dragend(){this.scheduleRemoval(20)}drop(){this.scheduleRemoval(20)}dragleave(t){(t.target==this.editorView.dom||!this.editorView.dom.contains(t.relatedTarget))&&this.setCursor(null)}}const eY=ze.create({name:"dropCursor",addOptions(){return{color:"currentColor",width:1,class:void 0}},addProseMirrorPlugins(){return[Xq(this.options)]}});class dt extends Oe{constructor(t){super(t,t)}map(t,n){let r=t.resolve(n.map(this.head));return dt.valid(r)?new dt(r):Oe.near(r)}content(){return me.empty}eq(t){return t instanceof dt&&t.head==this.head}toJSON(){return{type:"gapcursor",pos:this.head}}static fromJSON(t,n){if(typeof n.pos!="number")throw new RangeError("Invalid input for GapCursor.fromJSON");return new dt(t.resolve(n.pos))}getBookmark(){return new Lg(this.anchor)}static valid(t){let n=t.parent;if(n.isTextblock||!tY(t)||!nY(t))return!1;let r=n.type.spec.allowGapCursor;if(r!=null)return r;let i=n.contentMatchAt(t.index()).defaultType;return i&&i.isTextblock}static findGapCursorFrom(t,n,r=!1){e:for(;;){if(!r&&dt.valid(t))return t;let i=t.pos,o=null;for(let s=t.depth;;s--){let a=t.node(s);if(n>0?t.indexAfter(s)