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1 lines
209 KiB
1 lines
209 KiB
import{Text,RangeSet,MapMode,RangeValue,Facet,StateEffect,ChangeSet,findClusterBreak,EditorSelection,EditorState,findColumn,CharCategory,Prec,Transaction,codePointAt,codePointSize,combineConfig,StateField,RangeSetBuilder,countColumn}from"@codemirror/state";import{StyleModule}from"style-mod";import{keyName,base,shift}from"w3c-keyname";function getSelection(root){let target;if(root.nodeType==11){target=root.getSelection?root:root.ownerDocument}else{target=root}return target.getSelection()}function contains(dom,node){return node?dom==node||dom.contains(node.nodeType!=1?node.parentNode:node):false}function deepActiveElement(doc){let elt=doc.activeElement;while(elt&&elt.shadowRoot)elt=elt.shadowRoot.activeElement;return elt}function hasSelection(dom,selection){if(!selection.anchorNode)return false;try{return contains(dom,selection.anchorNode)}catch(_){return false}}function clientRectsFor(dom){if(dom.nodeType==3)return textRange(dom,0,dom.nodeValue.length).getClientRects();else if(dom.nodeType==1)return dom.getClientRects();else return[]}function isEquivalentPosition(node,off,targetNode,targetOff){return targetNode?scanFor(node,off,targetNode,targetOff,-1)||scanFor(node,off,targetNode,targetOff,1):false}function domIndex(node){for(var index=0;;index++){node=node.previousSibling;if(!node)return index}}function scanFor(node,off,targetNode,targetOff,dir){for(;;){if(node==targetNode&&off==targetOff)return true;if(off==(dir<0?0:maxOffset(node))){if(node.nodeName=="DIV")return false;let parent=node.parentNode;if(!parent||parent.nodeType!=1)return false;off=domIndex(node)+(dir<0?0:1);node=parent}else if(node.nodeType==1){node=node.childNodes[off+(dir<0?-1:0)];if(node.nodeType==1&&node.contentEditable=="false")return false;off=dir<0?maxOffset(node):0}else{return false}}}function maxOffset(node){return node.nodeType==3?node.nodeValue.length:node.childNodes.length}const Rect0={left:0,right:0,top:0,bottom:0};function flattenRect(rect,left){let x=left?rect.left:rect.right;return{left:x,right:x,top:rect.top,bottom:rect.bottom}}function windowRect(win){return{left:0,right:win.innerWidth,top:0,bottom:win.innerHeight}}function scrollRectIntoView(dom,rect,side,x,y,xMargin,yMargin,ltr){let doc=dom.ownerDocument,win=doc.defaultView||window;for(let cur=dom;cur;){if(cur.nodeType==1){let bounding,top=cur==doc.body;if(top){bounding=windowRect(win)}else{if(cur.scrollHeight<=cur.clientHeight&&cur.scrollWidth<=cur.clientWidth){cur=cur.assignedSlot||cur.parentNode;continue}let rect=cur.getBoundingClientRect();bounding={left:rect.left,right:rect.left+cur.clientWidth,top:rect.top,bottom:rect.top+cur.clientHeight}}let moveX=0,moveY=0;if(y=="nearest"){if(rect.top<bounding.top){moveY=-(bounding.top-rect.top+yMargin);if(side>0&&rect.bottom>bounding.bottom+moveY)moveY=rect.bottom-bounding.bottom+moveY+yMargin}else if(rect.bottom>bounding.bottom){moveY=rect.bottom-bounding.bottom+yMargin;if(side<0&&rect.top-moveY<bounding.top)moveY=-(bounding.top+moveY-rect.top+yMargin)}}else{let rectHeight=rect.bottom-rect.top,boundingHeight=bounding.bottom-bounding.top;let targetTop=y=="center"&&rectHeight<=boundingHeight?rect.top+rectHeight/2-boundingHeight/2:y=="start"||y=="center"&&side<0?rect.top-yMargin:rect.bottom-boundingHeight+yMargin;moveY=targetTop-bounding.top}if(x=="nearest"){if(rect.left<bounding.left){moveX=-(bounding.left-rect.left+xMargin);if(side>0&&rect.right>bounding.right+moveX)moveX=rect.right-bounding.right+moveX+xMargin}else if(rect.right>bounding.right){moveX=rect.right-bounding.right+xMargin;if(side<0&&rect.left<bounding.left+moveX)moveX=-(bounding.left+moveX-rect.left+xMargin)}}else{let targetLeft=x=="center"?rect.left+(rect.right-rect.left)/2-(bounding.right-bounding.left)/2:x=="start"==ltr?rect.left-xMargin:rect.right-(bounding.right-bounding.left)+xMargin;moveX=targetLeft-bounding.left}if(moveX||moveY){if(top){win.scrollBy(moveX,moveY)}else{let movedX=0,movedY=0;if(moveY){let start=cur.scrollTop;cur.scrollTop+=moveY;movedY=cur.scrollTop-start}if(moveX){let start=cur.scrollLeft;cur.scrollLeft+=moveX;movedX=cur.scrollLeft-start}rect={left:rect.left-movedX,top:rect.top-movedY,right:rect.right-movedX,bottom:rect.bottom-movedY};if(movedX&&Math.abs(movedX-moveX)<1)x="nearest";if(movedY&&Math.abs(movedY-moveY)<1)y="nearest"}}if(top)break;cur=cur.assignedSlot||cur.parentNode}else if(cur.nodeType==11){cur=cur.host}else{break}}}class DOMSelectionState{constructor(){this.anchorNode=null;this.anchorOffset=0;this.focusNode=null;this.focusOffset=0}eq(domSel){return this.anchorNode==domSel.anchorNode&&this.anchorOffset==domSel.anchorOffset&&this.focusNode==domSel.focusNode&&this.focusOffset==domSel.focusOffset}setRange(range){this.set(range.anchorNode,range.anchorOffset,range.focusNode,range.focusOffset)}set(anchorNode,anchorOffset,focusNode,focusOffset){this.anchorNode=anchorNode;this.anchorOffset=anchorOffset;this.focusNode=focusNode;this.focusOffset=focusOffset}}let preventScrollSupported=null;function focusPreventScroll(dom){if(dom.setActive)return dom.setActive();if(preventScrollSupported)return dom.focus(preventScrollSupported);let stack=[];for(let cur=dom;cur;cur=cur.parentNode){stack.push(cur,cur.scrollTop,cur.scrollLeft);if(cur==cur.ownerDocument)break}dom.focus(preventScrollSupported==null?{get preventScroll(){preventScrollSupported={preventScroll:true};return true}}:undefined);if(!preventScrollSupported){preventScrollSupported=false;for(let i=0;i<stack.length;){let elt=stack[i++],top=stack[i++],left=stack[i++];if(elt.scrollTop!=top)elt.scrollTop=top;if(elt.scrollLeft!=left)elt.scrollLeft=left}}}let scratchRange;function textRange(node,from,to=from){let range=scratchRange||(scratchRange=document.createRange());range.setEnd(node,to);range.setStart(node,from);return range}function dispatchKey(elt,name,code){let options={key:name,code:name,keyCode:code,which:code,cancelable:true};let down=new KeyboardEvent("keydown",options);down.synthetic=true;elt.dispatchEvent(down);let up=new KeyboardEvent("keyup",options);up.synthetic=true;elt.dispatchEvent(up);return down.defaultPrevented||up.defaultPrevented}function getRoot(node){while(node){if(node&&(node.nodeType==9||node.nodeType==11&&node.host))return node;node=node.assignedSlot||node.parentNode}return null}function clearAttributes(node){while(node.attributes.length)node.removeAttributeNode(node.attributes[0])}function atElementStart(doc,selection){let node=selection.focusNode,offset=selection.focusOffset;if(!node||selection.anchorNode!=node||selection.anchorOffset!=offset)return false;for(;;){if(offset){if(node.nodeType!=1)return false;let prev=node.childNodes[offset-1];if(prev.contentEditable=="false")offset--;else{node=prev;offset=maxOffset(node)}}else if(node==doc){return true}else{offset=domIndex(node);node=node.parentNode}}}class DOMPos{constructor(node,offset,precise=true){this.node=node;this.offset=offset;this.precise=precise}static before(dom,precise){return new DOMPos(dom.parentNode,domIndex(dom),precise)}static after(dom,precise){return new DOMPos(dom.parentNode,domIndex(dom)+1,precise)}}const noChildren=[];class ContentView{constructor(){this.parent=null;this.dom=null;this.dirty=2}get editorView(){if(!this.parent)throw new Error("Accessing view in orphan content view");return this.parent.editorView}get overrideDOMText(){return null}get posAtStart(){return this.parent?this.parent.posBefore(this):0}get posAtEnd(){return this.posAtStart+this.length}posBefore(view){let pos=this.posAtStart;for(let child of this.children){if(child==view)return pos;pos+=child.length+child.breakAfter}throw new RangeError("Invalid child in posBefore")}posAfter(view){return this.posBefore(view)+view.length}coordsAt(_pos,_side){return null}sync(track){if(this.dirty&2){let parent=this.dom;let prev=null,next;for(let child of this.children){if(child.dirty){if(!child.dom&&(next=prev?prev.nextSibling:parent.firstChild)){let contentView=ContentView.get(next);if(!contentView||!contentView.parent&&contentView.canReuseDOM(child))child.reuseDOM(next)}child.sync(track);child.dirty=0}next=prev?prev.nextSibling:parent.firstChild;if(track&&!track.written&&track.node==parent&&next!=child.dom)track.written=true;if(child.dom.parentNode==parent){while(next&&next!=child.dom)next=rm$1(next)}else{parent.insertBefore(child.dom,next)}prev=child.dom}next=prev?prev.nextSibling:parent.firstChild;if(next&&track&&track.node==parent)track.written=true;while(next)next=rm$1(next)}else if(this.dirty&1){for(let child of this.children)if(child.dirty){child.sync(track);child.dirty=0}}}reuseDOM(_dom){}localPosFromDOM(node,offset){let after;if(node==this.dom){after=this.dom.childNodes[offset]}else{let bias=maxOffset(node)==0?0:offset==0?-1:1;for(;;){let parent=node.parentNode;if(parent==this.dom)break;if(bias==0&&parent.firstChild!=parent.lastChild){if(node==parent.firstChild)bias=-1;else bias=1}node=parent}if(bias<0)after=node;else after=node.nextSibling}if(after==this.dom.firstChild)return 0;while(after&&!ContentView.get(after))after=after.nextSibling;if(!after)return this.length;for(let i=0,pos=0;;i++){let child=this.children[i];if(child.dom==after)return pos;pos+=child.length+child.breakAfter}}domBoundsAround(from,to,offset=0){let fromI=-1,fromStart=-1,toI=-1,toEnd=-1;for(let i=0,pos=offset,prevEnd=offset;i<this.children.length;i++){let child=this.children[i],end=pos+child.length;if(pos<from&&end>to)return child.domBoundsAround(from,to,pos);if(end>=from&&fromI==-1){fromI=i;fromStart=pos}if(pos>to&&child.dom.parentNode==this.dom){toI=i;toEnd=prevEnd;break}prevEnd=end;pos=end+child.breakAfter}return{from:fromStart,to:toEnd<0?offset+this.length:toEnd,startDOM:(fromI?this.children[fromI-1].dom.nextSibling:null)||this.dom.firstChild,endDOM:toI<this.children.length&&toI>=0?this.children[toI].dom:null}}markDirty(andParent=false){this.dirty|=2;this.markParentsDirty(andParent)}markParentsDirty(childList){for(let parent=this.parent;parent;parent=parent.parent){if(childList)parent.dirty|=2;if(parent.dirty&1)return;parent.dirty|=1;childList=false}}setParent(parent){if(this.parent!=parent){this.parent=parent;if(this.dirty)this.markParentsDirty(true)}}setDOM(dom){if(this.dom)this.dom.cmView=null;this.dom=dom;dom.cmView=this}get rootView(){for(let v=this;;){let parent=v.parent;if(!parent)return v;v=parent}}replaceChildren(from,to,children=noChildren){this.markDirty();for(let i=from;i<to;i++){let child=this.children[i];if(child.parent==this)child.destroy()}this.children.splice(from,to-from,...children);for(let i=0;i<children.length;i++)children[i].setParent(this)}ignoreMutation(_rec){return false}ignoreEvent(_event){return false}childCursor(pos=this.length){return new ChildCursor(this.children,pos,this.children.length)}childPos(pos,bias=1){return this.childCursor().findPos(pos,bias)}toString(){let name=this.constructor.name.replace("View","");return name+(this.children.length?"("+this.children.join()+")":this.length?"["+(name=="Text"?this.text:this.length)+"]":"")+(this.breakAfter?"#":"")}static get(node){return node.cmView}get isEditable(){return true}merge(from,to,source,hasStart,openStart,openEnd){return false}become(other){return false}canReuseDOM(other){return other.constructor==this.constructor}getSide(){return 0}destroy(){this.parent=null}}ContentView.prototype.breakAfter=0;function rm$1(dom){let next=dom.nextSibling;dom.parentNode.removeChild(dom);return next}class ChildCursor{constructor(children,pos,i){this.children=children;this.pos=pos;this.i=i;this.off=0}findPos(pos,bias=1){for(;;){if(pos>this.pos||pos==this.pos&&(bias>0||this.i==0||this.children[this.i-1].breakAfter)){this.off=pos-this.pos;return this}let next=this.children[--this.i];this.pos-=next.length+next.breakAfter}}}function replaceRange(parent,fromI,fromOff,toI,toOff,insert,breakAtStart,openStart,openEnd){let{children}=parent;let before=children.length?children[fromI]:null;let last=insert.length?insert[insert.length-1]:null;let breakAtEnd=last?last.breakAfter:breakAtStart;if(fromI==toI&&before&&!breakAtStart&&!breakAtEnd&&insert.length<2&&before.merge(fromOff,toOff,insert.length?last:null,fromOff==0,openStart,openEnd))return;if(toI<children.length){let after=children[toI];if(after&&toOff<after.length){if(fromI==toI){after=after.split(toOff);toOff=0}if(!breakAtEnd&&last&&after.merge(0,toOff,last,true,0,openEnd)){insert[insert.length-1]=after}else{if(toOff)after.merge(0,toOff,null,false,0,openEnd);insert.push(after)}}else if(after===null||after===void 0?void 0:after.breakAfter){if(last)last.breakAfter=1;else breakAtStart=1}toI++}if(before){before.breakAfter=breakAtStart;if(fromOff>0){if(!breakAtStart&&insert.length&&before.merge(fromOff,before.length,insert[0],false,openStart,0)){before.breakAfter=insert.shift().breakAfter}else if(fromOff<before.length||before.children.length&&before.children[before.children.length-1].length==0){before.merge(fromOff,before.length,null,false,openStart,0)}fromI++}}while(fromI<toI&&insert.length){if(children[toI-1].become(insert[insert.length-1])){toI--;insert.pop();openEnd=insert.length?0:openStart}else if(children[fromI].become(insert[0])){fromI++;insert.shift();openStart=insert.length?0:openEnd}else{break}}if(!insert.length&&fromI&&toI<children.length&&!children[fromI-1].breakAfter&&children[toI].merge(0,0,children[fromI-1],false,openStart,openEnd))fromI--;if(fromI<toI||insert.length)parent.replaceChildren(fromI,toI,insert)}function mergeChildrenInto(parent,from,to,insert,openStart,openEnd){let cur=parent.childCursor();let{i:toI,off:toOff}=cur.findPos(to,1);let{i:fromI,off:fromOff}=cur.findPos(from,-1);let dLen=from-to;for(let view of insert)dLen+=view.length;parent.length+=dLen;replaceRange(parent,fromI,fromOff,toI,toOff,insert,0,openStart,openEnd)}let nav=typeof navigator!="undefined"?navigator:{userAgent:"",vendor:"",platform:""};let doc=typeof document!="undefined"?document:{documentElement:{style:{}}};const ie_edge=/Edge\/(\d+)/.exec(nav.userAgent);const ie_upto10=/MSIE \d/.test(nav.userAgent);const ie_11up=/Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(nav.userAgent);const ie=!!(ie_upto10||ie_11up||ie_edge);const gecko=!ie&&/gecko\/(\d+)/i.test(nav.userAgent);const chrome=!ie&&/Chrome\/(\d+)/.exec(nav.userAgent);const webkit="webkitFontSmoothing"in doc.documentElement.style;const safari=!ie&&/Apple Computer/.test(nav.vendor);const ios=safari&&(/Mobile\/\w+/.test(nav.userAgent)||nav.maxTouchPoints>2);var browser={mac:ios||/Mac/.test(nav.platform),windows:/Win/.test(nav.platform),linux:/Linux|X11/.test(nav.platform),ie:ie,ie_version:ie_upto10?doc.documentMode||6:ie_11up?+ie_11up[1]:ie_edge?+ie_edge[1]:0,gecko:gecko,gecko_version:gecko?+(/Firefox\/(\d+)/.exec(nav.userAgent)||[0,0])[1]:0,chrome:!!chrome,chrome_version:chrome?+chrome[1]:0,ios:ios,android:/Android\b/.test(nav.userAgent),webkit:webkit,safari:safari,webkit_version:webkit?+(/\bAppleWebKit\/(\d+)/.exec(navigator.userAgent)||[0,0])[1]:0,tabSize:doc.documentElement.style.tabSize!=null?"tab-size":"-moz-tab-size"};const MaxJoinLen=256;class TextView extends ContentView{constructor(text){super();this.text=text}get length(){return this.text.length}createDOM(textDOM){this.setDOM(textDOM||document.createTextNode(this.text))}sync(track){if(!this.dom)this.createDOM();if(this.dom.nodeValue!=this.text){if(track&&track.node==this.dom)track.written=true;this.dom.nodeValue=this.text}}reuseDOM(dom){if(dom.nodeType==3)this.createDOM(dom)}merge(from,to,source){if(source&&(!(source instanceof TextView)||this.length-(to-from)+source.length>MaxJoinLen))return false;this.text=this.text.slice(0,from)+(source?source.text:"")+this.text.slice(to);this.markDirty();return true}split(from){let result=new TextView(this.text.slice(from));this.text=this.text.slice(0,from);this.markDirty();return result}localPosFromDOM(node,offset){return node==this.dom?offset:offset?this.text.length:0}domAtPos(pos){return new DOMPos(this.dom,pos)}domBoundsAround(_from,_to,offset){return{from:offset,to:offset+this.length,startDOM:this.dom,endDOM:this.dom.nextSibling}}coordsAt(pos,side){return textCoords(this.dom,pos,side)}}class MarkView extends ContentView{constructor(mark,children=[],length=0){super();this.mark=mark;this.children=children;this.length=length;for(let ch of children)ch.setParent(this)}setAttrs(dom){clearAttributes(dom);if(this.mark.class)dom.className=this.mark.class;if(this.mark.attrs)for(let name in this.mark.attrs)dom.setAttribute(name,this.mark.attrs[name]);return dom}reuseDOM(node){if(node.nodeName==this.mark.tagName.toUpperCase()){this.setDOM(node);this.dirty|=4|2}}sync(track){if(!this.dom)this.setDOM(this.setAttrs(document.createElement(this.mark.tagName)));else if(this.dirty&4)this.setAttrs(this.dom);super.sync(track)}merge(from,to,source,_hasStart,openStart,openEnd){if(source&&(!(source instanceof MarkView&&source.mark.eq(this.mark))||from&&openStart<=0||to<this.length&&openEnd<=0))return false;mergeChildrenInto(this,from,to,source?source.children:[],openStart-1,openEnd-1);this.markDirty();return true}split(from){let result=[],off=0,detachFrom=-1,i=0;for(let elt of this.children){let end=off+elt.length;if(end>from)result.push(off<from?elt.split(from-off):elt);if(detachFrom<0&&off>=from)detachFrom=i;off=end;i++}let length=this.length-from;this.length=from;if(detachFrom>-1){this.children.length=detachFrom;this.markDirty()}return new MarkView(this.mark,result,length)}domAtPos(pos){return inlineDOMAtPos(this,pos)}coordsAt(pos,side){return coordsInChildren(this,pos,side)}}function textCoords(text,pos,side){let length=text.nodeValue.length;if(pos>length)pos=length;let from=pos,to=pos,flatten=0;if(pos==0&&side<0||pos==length&&side>=0){if(!(browser.chrome||browser.gecko)){if(pos){from--;flatten=1}else if(to<length){to++;flatten=-1}}}else{if(side<0)from--;else if(to<length)to++}let rects=textRange(text,from,to).getClientRects();if(!rects.length)return Rect0;let rect=rects[(flatten?flatten<0:side>=0)?0:rects.length-1];if(browser.safari&&!flatten&&rect.width==0)rect=Array.prototype.find.call(rects,r=>r.width)||rect;return flatten?flattenRect(rect,flatten<0):rect||null}class WidgetView extends ContentView{constructor(widget,length,side){super();this.widget=widget;this.length=length;this.side=side;this.prevWidget=null}static create(widget,length,side){return new(widget.customView||WidgetView)(widget,length,side)}split(from){let result=WidgetView.create(this.widget,this.length-from,this.side);this.length-=from;return result}sync(){if(!this.dom||!this.widget.updateDOM(this.dom)){if(this.dom&&this.prevWidget)this.prevWidget.destroy(this.dom);this.prevWidget=null;this.setDOM(this.widget.toDOM(this.editorView));this.dom.contentEditable="false"}}getSide(){return this.side}merge(from,to,source,hasStart,openStart,openEnd){if(source&&(!(source instanceof WidgetView)||!this.widget.compare(source.widget)||from>0&&openStart<=0||to<this.length&&openEnd<=0))return false;this.length=from+(source?source.length:0)+(this.length-to);return true}become(other){if(other.length==this.length&&other instanceof WidgetView&&other.side==this.side){if(this.widget.constructor==other.widget.constructor){if(!this.widget.eq(other.widget))this.markDirty(true);if(this.dom&&!this.prevWidget)this.prevWidget=this.widget;this.widget=other.widget;return true}}return false}ignoreMutation(){return true}ignoreEvent(event){return this.widget.ignoreEvent(event)}get overrideDOMText(){if(this.length==0)return Text.empty;let top=this;while(top.parent)top=top.parent;let view=top.editorView,text=view&&view.state.doc,start=this.posAtStart;return text?text.slice(start,start+this.length):Text.empty}domAtPos(pos){return pos==0?DOMPos.before(this.dom):DOMPos.after(this.dom,pos==this.length)}domBoundsAround(){return null}coordsAt(pos,side){let rects=this.dom.getClientRects(),rect=null;if(!rects.length)return Rect0;for(let i=pos>0?rects.length-1:0;;i+=pos>0?-1:1){rect=rects[i];if(pos>0?i==0:i==rects.length-1||rect.top<rect.bottom)break}return flattenRect(rect,this.side>0)}get isEditable(){return false}destroy(){super.destroy();if(this.dom)this.widget.destroy(this.dom)}}class CompositionView extends WidgetView{domAtPos(pos){let{topView,text}=this.widget;if(!topView)return new DOMPos(text,Math.min(pos,text.nodeValue.length));return scanCompositionTree(pos,0,topView,text,(v,p)=>v.domAtPos(p),p=>new DOMPos(text,Math.min(p,text.nodeValue.length)))}sync(){this.setDOM(this.widget.toDOM())}localPosFromDOM(node,offset){let{topView,text}=this.widget;if(!topView)return Math.min(offset,this.length);return posFromDOMInCompositionTree(node,offset,topView,text)}ignoreMutation(){return false}get overrideDOMText(){return null}coordsAt(pos,side){let{topView,text}=this.widget;if(!topView)return textCoords(text,pos,side);return scanCompositionTree(pos,side,topView,text,(v,pos,side)=>v.coordsAt(pos,side),(pos,side)=>textCoords(text,pos,side))}destroy(){var _a;super.destroy();(_a=this.widget.topView)===null||_a===void 0?void 0:_a.destroy()}get isEditable(){return true}canReuseDOM(){return true}}function scanCompositionTree(pos,side,view,text,enterView,fromText){if(view instanceof MarkView){for(let child=view.dom.firstChild;child;child=child.nextSibling){let desc=ContentView.get(child);if(!desc)return fromText(pos,side);let hasComp=contains(child,text);let len=desc.length+(hasComp?text.nodeValue.length:0);if(pos<len||pos==len&&desc.getSide()<=0)return hasComp?scanCompositionTree(pos,side,desc,text,enterView,fromText):enterView(desc,pos,side);pos-=len}return enterView(view,view.length,-1)}else if(view.dom==text){return fromText(pos,side)}else{return enterView(view,pos,side)}}function posFromDOMInCompositionTree(node,offset,view,text){if(view instanceof MarkView){for(let child of view.children){let pos=0,hasComp=contains(child.dom,text);if(contains(child.dom,node))return pos+(hasComp?posFromDOMInCompositionTree(node,offset,child,text):child.localPosFromDOM(node,offset));pos+=hasComp?text.nodeValue.length:child.length}}else if(view.dom==text){return Math.min(offset,text.nodeValue.length)}return view.localPosFromDOM(node,offset)}class WidgetBufferView extends ContentView{constructor(side){super();this.side=side}get length(){return 0}merge(){return false}become(other){return other instanceof WidgetBufferView&&other.side==this.side}split(){return new WidgetBufferView(this.side)}sync(){if(!this.dom){let dom=document.createElement("img");dom.className="cm-widgetBuffer";dom.setAttribute("aria-hidden","true");this.setDOM(dom)}}getSide(){return this.side}domAtPos(pos){return DOMPos.before(this.dom)}localPosFromDOM(){return 0}domBoundsAround(){return null}coordsAt(pos){let imgRect=this.dom.getBoundingClientRect();let siblingRect=inlineSiblingRect(this,this.side>0?-1:1);return siblingRect&&siblingRect.top<imgRect.bottom&&siblingRect.bottom>imgRect.top?{left:imgRect.left,right:imgRect.right,top:siblingRect.top,bottom:siblingRect.bottom}:imgRect}get overrideDOMText(){return Text.empty}}TextView.prototype.children=WidgetView.prototype.children=WidgetBufferView.prototype.children=noChildren;function inlineSiblingRect(view,side){let parent=view.parent,index=parent?parent.children.indexOf(view):-1;while(parent&&index>=0){if(side<0?index>0:index<parent.children.length){let next=parent.children[index+side];if(next instanceof TextView){let nextRect=next.coordsAt(side<0?next.length:0,side);if(nextRect)return nextRect}index+=side}else if(parent instanceof MarkView&&parent.parent){index=parent.parent.children.indexOf(parent)+(side<0?0:1);parent=parent.parent}else{let last=parent.dom.lastChild;if(last&&last.nodeName=="BR")return last.getClientRects()[0];break}}return undefined}function inlineDOMAtPos(parent,pos){let dom=parent.dom,{children}=parent,i=0;for(let off=0;i<children.length;i++){let child=children[i],end=off+child.length;if(end==off&&child.getSide()<=0)continue;if(pos>off&&pos<end&&child.dom.parentNode==dom)return child.domAtPos(pos-off);if(pos<=off)break;off=end}for(let j=i;j>0;j--){let prev=children[j-1];if(prev.dom.parentNode==dom)return prev.domAtPos(prev.length)}for(let j=i;j<children.length;j++){let next=children[j];if(next.dom.parentNode==dom)return next.domAtPos(0)}return new DOMPos(dom,0)}function joinInlineInto(parent,view,open){let last,{children}=parent;if(open>0&&view instanceof MarkView&&children.length&&(last=children[children.length-1])instanceof MarkView&&last.mark.eq(view.mark)){joinInlineInto(last,view.children[0],open-1)}else{children.push(view);view.setParent(parent)}parent.length+=view.length}function coordsInChildren(view,pos,side){let before=null,beforePos=-1,after=null,afterPos=-1;function scan(view,pos){for(let i=0,off=0;i<view.children.length&&off<=pos;i++){let child=view.children[i],end=off+child.length;if(end>=pos){if(child.children.length){scan(child,pos-off)}else if(!after&&(end>pos||off==end&&child.getSide()>0)){after=child;afterPos=pos-off}else if(off<pos||off==end&&child.getSide()<0){before=child;beforePos=pos-off}}off=end}}scan(view,pos);let target=(side<0?before:after)||before||after;if(target)return target.coordsAt(Math.max(0,target==before?beforePos:afterPos),side);return fallbackRect(view)}function fallbackRect(view){let last=view.dom.lastChild;if(!last)return view.dom.getBoundingClientRect();let rects=clientRectsFor(last);return rects[rects.length-1]||null}function combineAttrs(source,target){for(let name in source){if(name=="class"&&target.class)target.class+=" "+source.class;else if(name=="style"&&target.style)target.style+=";"+source.style;else target[name]=source[name]}return target}function attrsEq(a,b){if(a==b)return true;if(!a||!b)return false;let keysA=Object.keys(a),keysB=Object.keys(b);if(keysA.length!=keysB.length)return false;for(let key of keysA){if(keysB.indexOf(key)==-1||a[key]!==b[key])return false}return true}function updateAttrs(dom,prev,attrs){let changed=null;if(prev)for(let name in prev)if(!(attrs&&name in attrs))dom.removeAttribute(changed=name);if(attrs)for(let name in attrs)if(!(prev&&prev[name]==attrs[name]))dom.setAttribute(changed=name,attrs[name]);return!!changed}class WidgetType{eq(widget){return false}updateDOM(dom){return false}compare(other){return this==other||this.constructor==other.constructor&&this.eq(other)}get estimatedHeight(){return-1}ignoreEvent(event){return true}get customView(){return null}destroy(dom){}}var BlockType=function(BlockType){BlockType[BlockType["Text"]=0]="Text";BlockType[BlockType["WidgetBefore"]=1]="WidgetBefore";BlockType[BlockType["WidgetAfter"]=2]="WidgetAfter";BlockType[BlockType["WidgetRange"]=3]="WidgetRange";return BlockType}(BlockType||(BlockType={}));class Decoration extends RangeValue{constructor(startSide,endSide,widget,spec){super();this.startSide=startSide;this.endSide=endSide;this.widget=widget;this.spec=spec}get heightRelevant(){return false}static mark(spec){return new MarkDecoration(spec)}static widget(spec){let side=spec.side||0,block=!!spec.block;side+=block?side>0?3e8:-4e8:side>0?1e8:-1e8;return new PointDecoration(spec,side,side,block,spec.widget||null,false)}static replace(spec){let block=!!spec.block,startSide,endSide;if(spec.isBlockGap){startSide=-5e8;endSide=4e8}else{let{start,end}=getInclusive(spec,block);startSide=(start?block?-3e8:-1:5e8)-1;endSide=(end?block?2e8:1:-6e8)+1}return new PointDecoration(spec,startSide,endSide,block,spec.widget||null,true)}static line(spec){return new LineDecoration(spec)}static set(of,sort=false){return RangeSet.of(of,sort)}hasHeight(){return this.widget?this.widget.estimatedHeight>-1:false}}Decoration.none=RangeSet.empty;class MarkDecoration extends Decoration{constructor(spec){let{start,end}=getInclusive(spec);super(start?-1:5e8,end?1:-6e8,null,spec);this.tagName=spec.tagName||"span";this.class=spec.class||"";this.attrs=spec.attributes||null}eq(other){return this==other||other instanceof MarkDecoration&&this.tagName==other.tagName&&this.class==other.class&&attrsEq(this.attrs,other.attrs)}range(from,to=from){if(from>=to)throw new RangeError("Mark decorations may not be empty");return super.range(from,to)}}MarkDecoration.prototype.point=false;class LineDecoration extends Decoration{constructor(spec){super(-2e8,-2e8,null,spec)}eq(other){return other instanceof LineDecoration&&attrsEq(this.spec.attributes,other.spec.attributes)}range(from,to=from){if(to!=from)throw new RangeError("Line decoration ranges must be zero-length");return super.range(from,to)}}LineDecoration.prototype.mapMode=MapMode.TrackBefore;LineDecoration.prototype.point=true;class PointDecoration extends Decoration{constructor(spec,startSide,endSide,block,widget,isReplace){super(startSide,endSide,widget,spec);this.block=block;this.isReplace=isReplace;this.mapMode=!block?MapMode.TrackDel:startSide<=0?MapMode.TrackBefore:MapMode.TrackAfter}get type(){return this.startSide<this.endSide?BlockType.WidgetRange:this.startSide<=0?BlockType.WidgetBefore:BlockType.WidgetAfter}get heightRelevant(){return this.block||!!this.widget&&this.widget.estimatedHeight>=5}eq(other){return other instanceof PointDecoration&&widgetsEq(this.widget,other.widget)&&this.block==other.block&&this.startSide==other.startSide&&this.endSide==other.endSide}range(from,to=from){if(this.isReplace&&(from>to||from==to&&this.startSide>0&&this.endSide<=0))throw new RangeError("Invalid range for replacement decoration");if(!this.isReplace&&to!=from)throw new RangeError("Widget decorations can only have zero-length ranges");return super.range(from,to)}}PointDecoration.prototype.point=true;function getInclusive(spec,block=false){let{inclusiveStart:start,inclusiveEnd:end}=spec;if(start==null)start=spec.inclusive;if(end==null)end=spec.inclusive;return{start:start!==null&&start!==void 0?start:block,end:end!==null&&end!==void 0?end:block}}function widgetsEq(a,b){return a==b||!!(a&&b&&a.compare(b))}function addRange(from,to,ranges,margin=0){let last=ranges.length-1;if(last>=0&&ranges[last]+margin>=from)ranges[last]=Math.max(ranges[last],to);else ranges.push(from,to)}class LineView extends ContentView{constructor(){super(...arguments);this.children=[];this.length=0;this.prevAttrs=undefined;this.attrs=null;this.breakAfter=0}merge(from,to,source,hasStart,openStart,openEnd){if(source){if(!(source instanceof LineView))return false;if(!this.dom)source.transferDOM(this)}if(hasStart)this.setDeco(source?source.attrs:null);mergeChildrenInto(this,from,to,source?source.children:[],openStart,openEnd);return true}split(at){let end=new LineView;end.breakAfter=this.breakAfter;if(this.length==0)return end;let{i,off}=this.childPos(at);if(off){end.append(this.children[i].split(off),0);this.children[i].merge(off,this.children[i].length,null,false,0,0);i++}for(let j=i;j<this.children.length;j++)end.append(this.children[j],0);while(i>0&&this.children[i-1].length==0)this.children[--i].destroy();this.children.length=i;this.markDirty();this.length=at;return end}transferDOM(other){if(!this.dom)return;this.markDirty();other.setDOM(this.dom);other.prevAttrs=this.prevAttrs===undefined?this.attrs:this.prevAttrs;this.prevAttrs=undefined;this.dom=null}setDeco(attrs){if(!attrsEq(this.attrs,attrs)){if(this.dom){this.prevAttrs=this.attrs;this.markDirty()}this.attrs=attrs}}append(child,openStart){joinInlineInto(this,child,openStart)}addLineDeco(deco){let attrs=deco.spec.attributes,cls=deco.spec.class;if(attrs)this.attrs=combineAttrs(attrs,this.attrs||{});if(cls)this.attrs=combineAttrs({class:cls},this.attrs||{})}domAtPos(pos){return inlineDOMAtPos(this,pos)}reuseDOM(node){if(node.nodeName=="DIV"){this.setDOM(node);this.dirty|=4|2}}sync(track){var _a;if(!this.dom){this.setDOM(document.createElement("div"));this.dom.className="cm-line";this.prevAttrs=this.attrs?null:undefined}else if(this.dirty&4){clearAttributes(this.dom);this.dom.className="cm-line";this.prevAttrs=this.attrs?null:undefined}if(this.prevAttrs!==undefined){updateAttrs(this.dom,this.prevAttrs,this.attrs);this.dom.classList.add("cm-line");this.prevAttrs=undefined}super.sync(track);let last=this.dom.lastChild;while(last&&ContentView.get(last)instanceof MarkView)last=last.lastChild;if(!last||!this.length||last.nodeName!="BR"&&((_a=ContentView.get(last))===null||_a===void 0?void 0:_a.isEditable)==false&&(!browser.ios||!this.children.some(ch=>ch instanceof TextView))){let hack=document.createElement("BR");hack.cmIgnore=true;this.dom.appendChild(hack)}}measureTextSize(){if(this.children.length==0||this.length>20)return null;let totalWidth=0;for(let child of this.children){if(!(child instanceof TextView)||/[^ -~]/.test(child.text))return null;let rects=clientRectsFor(child.dom);if(rects.length!=1)return null;totalWidth+=rects[0].width}return!totalWidth?null:{lineHeight:this.dom.getBoundingClientRect().height,charWidth:totalWidth/this.length}}coordsAt(pos,side){return coordsInChildren(this,pos,side)}become(_other){return false}get type(){return BlockType.Text}static find(docView,pos){for(let i=0,off=0;i<docView.children.length;i++){let block=docView.children[i],end=off+block.length;if(end>=pos){if(block instanceof LineView)return block;if(end>pos)break}off=end+block.breakAfter}return null}}class BlockWidgetView extends ContentView{constructor(widget,length,type){super();this.widget=widget;this.length=length;this.type=type;this.breakAfter=0;this.prevWidget=null}merge(from,to,source,_takeDeco,openStart,openEnd){if(source&&(!(source instanceof BlockWidgetView)||!this.widget.compare(source.widget)||from>0&&openStart<=0||to<this.length&&openEnd<=0))return false;this.length=from+(source?source.length:0)+(this.length-to);return true}domAtPos(pos){return pos==0?DOMPos.before(this.dom):DOMPos.after(this.dom,pos==this.length)}split(at){let len=this.length-at;this.length=at;let end=new BlockWidgetView(this.widget,len,this.type);end.breakAfter=this.breakAfter;return end}get children(){return noChildren}sync(){if(!this.dom||!this.widget.updateDOM(this.dom)){if(this.dom&&this.prevWidget)this.prevWidget.destroy(this.dom);this.prevWidget=null;this.setDOM(this.widget.toDOM(this.editorView));this.dom.contentEditable="false"}}get overrideDOMText(){return this.parent?this.parent.view.state.doc.slice(this.posAtStart,this.posAtEnd):Text.empty}domBoundsAround(){return null}become(other){if(other instanceof BlockWidgetView&&other.type==this.type&&other.widget.constructor==this.widget.constructor){if(!other.widget.eq(this.widget))this.markDirty(true);if(this.dom&&!this.prevWidget)this.prevWidget=this.widget;this.widget=other.widget;this.length=other.length;this.breakAfter=other.breakAfter;return true}return false}ignoreMutation(){return true}ignoreEvent(event){return this.widget.ignoreEvent(event)}destroy(){super.destroy();if(this.dom)this.widget.destroy(this.dom)}}class ContentBuilder{constructor(doc,pos,end,disallowBlockEffectsFor){this.doc=doc;this.pos=pos;this.end=end;this.disallowBlockEffectsFor=disallowBlockEffectsFor;this.content=[];this.curLine=null;this.breakAtStart=0;this.pendingBuffer=0;this.atCursorPos=true;this.openStart=-1;this.openEnd=-1;this.text="";this.textOff=0;this.cursor=doc.iter();this.skip=pos}posCovered(){if(this.content.length==0)return!this.breakAtStart&&this.doc.lineAt(this.pos).from!=this.pos;let last=this.content[this.content.length-1];return!last.breakAfter&&!(last instanceof BlockWidgetView&&last.type==BlockType.WidgetBefore)}getLine(){if(!this.curLine){this.content.push(this.curLine=new LineView);this.atCursorPos=true}return this.curLine}flushBuffer(active){if(this.pendingBuffer){this.curLine.append(wrapMarks(new WidgetBufferView(-1),active),active.length);this.pendingBuffer=0}}addBlockWidget(view){this.flushBuffer([]);this.curLine=null;this.content.push(view)}finish(openEnd){if(!openEnd)this.flushBuffer([]);else this.pendingBuffer=0;if(!this.posCovered())this.getLine()}buildText(length,active,openStart){while(length>0){if(this.textOff==this.text.length){let{value,lineBreak,done}=this.cursor.next(this.skip);this.skip=0;if(done)throw new Error("Ran out of text content when drawing inline views");if(lineBreak){if(!this.posCovered())this.getLine();if(this.content.length)this.content[this.content.length-1].breakAfter=1;else this.breakAtStart=1;this.flushBuffer([]);this.curLine=null;length--;continue}else{this.text=value;this.textOff=0}}let take=Math.min(this.text.length-this.textOff,length,512);this.flushBuffer(active.slice(0,openStart));this.getLine().append(wrapMarks(new TextView(this.text.slice(this.textOff,this.textOff+take)),active),openStart);this.atCursorPos=true;this.textOff+=take;length-=take;openStart=0}}span(from,to,active,openStart){this.buildText(to-from,active,openStart);this.pos=to;if(this.openStart<0)this.openStart=openStart}point(from,to,deco,active,openStart,index){if(this.disallowBlockEffectsFor[index]&&deco instanceof PointDecoration){if(deco.block)throw new RangeError("Block decorations may not be specified via plugins");if(to>this.doc.lineAt(this.pos).to)throw new RangeError("Decorations that replace line breaks may not be specified via plugins")}let len=to-from;if(deco instanceof PointDecoration){if(deco.block){let{type}=deco;if(type==BlockType.WidgetAfter&&!this.posCovered())this.getLine();this.addBlockWidget(new BlockWidgetView(deco.widget||new NullWidget("div"),len,type))}else{let view=WidgetView.create(deco.widget||new NullWidget("span"),len,len?0:deco.startSide);let cursorBefore=this.atCursorPos&&!view.isEditable&&openStart<=active.length&&(from<to||deco.startSide>0);let cursorAfter=!view.isEditable&&(from<to||deco.startSide<=0);let line=this.getLine();if(this.pendingBuffer==2&&!cursorBefore)this.pendingBuffer=0;this.flushBuffer(active);if(cursorBefore){line.append(wrapMarks(new WidgetBufferView(1),active),openStart);openStart=active.length+Math.max(0,openStart-active.length)}line.append(wrapMarks(view,active),openStart);this.atCursorPos=cursorAfter;this.pendingBuffer=!cursorAfter?0:from<to?1:2}}else if(this.doc.lineAt(this.pos).from==this.pos){this.getLine().addLineDeco(deco)}if(len){if(this.textOff+len<=this.text.length){this.textOff+=len}else{this.skip+=len-(this.text.length-this.textOff);this.text="";this.textOff=0}this.pos=to}if(this.openStart<0)this.openStart=openStart}static build(text,from,to,decorations,dynamicDecorationMap){let builder=new ContentBuilder(text,from,to,dynamicDecorationMap);builder.openEnd=RangeSet.spans(decorations,from,to,builder);if(builder.openStart<0)builder.openStart=builder.openEnd;builder.finish(builder.openEnd);return builder}}function wrapMarks(view,active){for(let mark of active)view=new MarkView(mark,[view],view.length);return view}class NullWidget extends WidgetType{constructor(tag){super();this.tag=tag}eq(other){return other.tag==this.tag}toDOM(){return document.createElement(this.tag)}updateDOM(elt){return elt.nodeName.toLowerCase()==this.tag}}const clickAddsSelectionRange=Facet.define();const dragMovesSelection$1=Facet.define();const mouseSelectionStyle=Facet.define();const exceptionSink=Facet.define();const updateListener=Facet.define();const inputHandler=Facet.define();const perLineTextDirection=Facet.define({combine:values=>values.some(x=>x)});class ScrollTarget{constructor(range,y="nearest",x="nearest",yMargin=5,xMargin=5){this.range=range;this.y=y;this.x=x;this.yMargin=yMargin;this.xMargin=xMargin}map(changes){return changes.empty?this:new ScrollTarget(this.range.map(changes),this.y,this.x,this.yMargin,this.xMargin)}}const scrollIntoView=StateEffect.define({map:(t,ch)=>t.map(ch)});function logException(state,exception,context){let handler=state.facet(exceptionSink);if(handler.length)handler[0](exception);else if(window.onerror)window.onerror(String(exception),context,undefined,undefined,exception);else if(context)console.error(context+":",exception);else console.error(exception)}const editable=Facet.define({combine:values=>values.length?values[0]:true});let nextPluginID=0;const viewPlugin=Facet.define();class ViewPlugin{constructor(id,create,domEventHandlers,buildExtensions){this.id=id;this.create=create;this.domEventHandlers=domEventHandlers;this.extension=buildExtensions(this)}static define(create,spec){const{eventHandlers,provide,decorations:deco}=spec||{};return new ViewPlugin(nextPluginID++,create,eventHandlers,plugin=>{let ext=[viewPlugin.of(plugin)];if(deco)ext.push(decorations.of(view=>{let pluginInst=view.plugin(plugin);return pluginInst?deco(pluginInst):Decoration.none}));if(provide)ext.push(provide(plugin));return ext})}static fromClass(cls,spec){return ViewPlugin.define(view=>new cls(view),spec)}}class PluginInstance{constructor(spec){this.spec=spec;this.mustUpdate=null;this.value=null}update(view){if(!this.value){if(this.spec){try{this.value=this.spec.create(view)}catch(e){logException(view.state,e,"CodeMirror plugin crashed");this.deactivate()}}}else if(this.mustUpdate){let update=this.mustUpdate;this.mustUpdate=null;if(this.value.update){try{this.value.update(update)}catch(e){logException(update.state,e,"CodeMirror plugin crashed");if(this.value.destroy)try{this.value.destroy()}catch(_){}this.deactivate()}}}return this}destroy(view){var _a;if((_a=this.value)===null||_a===void 0?void 0:_a.destroy){try{this.value.destroy()}catch(e){logException(view.state,e,"CodeMirror plugin crashed")}}}deactivate(){this.spec=this.value=null}}const editorAttributes=Facet.define();const contentAttributes=Facet.define();const decorations=Facet.define();const atomicRanges=Facet.define();const scrollMargins=Facet.define();const styleModule=Facet.define();class ChangedRange{constructor(fromA,toA,fromB,toB){this.fromA=fromA;this.toA=toA;this.fromB=fromB;this.toB=toB}join(other){return new ChangedRange(Math.min(this.fromA,other.fromA),Math.max(this.toA,other.toA),Math.min(this.fromB,other.fromB),Math.max(this.toB,other.toB))}addToSet(set){let i=set.length,me=this;for(;i>0;i--){let range=set[i-1];if(range.fromA>me.toA)continue;if(range.toA<me.fromA)break;me=me.join(range);set.splice(i-1,1)}set.splice(i,0,me);return set}static extendWithRanges(diff,ranges){if(ranges.length==0)return diff;let result=[];for(let dI=0,rI=0,posA=0,posB=0;;dI++){let next=dI==diff.length?null:diff[dI],off=posA-posB;let end=next?next.fromB:1e9;while(rI<ranges.length&&ranges[rI]<end){let from=ranges[rI],to=ranges[rI+1];let fromB=Math.max(posB,from),toB=Math.min(end,to);if(fromB<=toB)new ChangedRange(fromB+off,toB+off,fromB,toB).addToSet(result);if(to>end)break;else rI+=2}if(!next)return result;new ChangedRange(next.fromA,next.toA,next.fromB,next.toB).addToSet(result);posA=next.toA;posB=next.toB}}}class ViewUpdate{constructor(view,state,transactions){this.view=view;this.state=state;this.transactions=transactions;this.flags=0;this.startState=view.state;this.changes=ChangeSet.empty(this.startState.doc.length);for(let tr of transactions)this.changes=this.changes.compose(tr.changes);let changedRanges=[];this.changes.iterChangedRanges((fromA,toA,fromB,toB)=>changedRanges.push(new ChangedRange(fromA,toA,fromB,toB)));this.changedRanges=changedRanges;let focus=view.hasFocus;if(focus!=view.inputState.notifiedFocused){view.inputState.notifiedFocused=focus;this.flags|=1}}static create(view,state,transactions){return new ViewUpdate(view,state,transactions)}get viewportChanged(){return(this.flags&4)>0}get heightChanged(){return(this.flags&2)>0}get geometryChanged(){return this.docChanged||(this.flags&(8|2))>0}get focusChanged(){return(this.flags&1)>0}get docChanged(){return!this.changes.empty}get selectionSet(){return this.transactions.some(tr=>tr.selection)}get empty(){return this.flags==0&&this.transactions.length==0}}var Direction=function(Direction){Direction[Direction["LTR"]=0]="LTR";Direction[Direction["RTL"]=1]="RTL";return Direction}(Direction||(Direction={}));const LTR=Direction.LTR,RTL=Direction.RTL;function dec(str){let result=[];for(let i=0;i<str.length;i++)result.push(1<<+str[i]);return result}const LowTypes=dec("88888888888888888888888888888888888666888888787833333333337888888000000000000000000000000008888880000000000000000000000000088888888888888888888888888888888888887866668888088888663380888308888800000000000000000000000800000000000000000000000000000008");const ArabicTypes=dec("4444448826627288999999999992222222222222222222222222222222222222222222222229999999999999999999994444444444644222822222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222999999949999999229989999223333333333");const Brackets=Object.create(null),BracketStack=[];for(let p of["()","[]","{}"]){let l=p.charCodeAt(0),r=p.charCodeAt(1);Brackets[l]=r;Brackets[r]=-l}function charType(ch){return ch<=247?LowTypes[ch]:1424<=ch&&ch<=1524?2:1536<=ch&&ch<=1785?ArabicTypes[ch-1536]:1774<=ch&&ch<=2220?4:8192<=ch&&ch<=8203?256:64336<=ch&&ch<=65023?4:ch==8204?256:1}const BidiRE=/[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac\ufb50-\ufdff]/;class BidiSpan{constructor(from,to,level){this.from=from;this.to=to;this.level=level}get dir(){return this.level%2?RTL:LTR}side(end,dir){return this.dir==dir==end?this.to:this.from}static find(order,index,level,assoc){let maybe=-1;for(let i=0;i<order.length;i++){let span=order[i];if(span.from<=index&&span.to>=index){if(span.level==level)return i;if(maybe<0||(assoc!=0?assoc<0?span.from<index:span.to>index:order[maybe].level>span.level))maybe=i}}if(maybe<0)throw new RangeError("Index out of range");return maybe}}const types=[];function computeOrder(line,direction){let len=line.length,outerType=direction==LTR?1:2,oppositeType=direction==LTR?2:1;if(!line||outerType==1&&!BidiRE.test(line))return trivialOrder(len);for(let i=0,prev=outerType,prevStrong=outerType;i<len;i++){let type=charType(line.charCodeAt(i));if(type==512)type=prev;else if(type==8&&prevStrong==4)type=16;types[i]=type==4?2:type;if(type&7)prevStrong=type;prev=type}for(let i=0,prev=outerType,prevStrong=outerType;i<len;i++){let type=types[i];if(type==128){if(i<len-1&&prev==types[i+1]&&prev&24)type=types[i]=prev;else types[i]=256}else if(type==64){let end=i+1;while(end<len&&types[end]==64)end++;let replace=i&&prev==8||end<len&&types[end]==8?prevStrong==1?1:8:256;for(let j=i;j<end;j++)types[j]=replace;i=end-1}else if(type==8&&prevStrong==1){types[i]=1}prev=type;if(type&7)prevStrong=type}for(let i=0,sI=0,context=0,ch,br,type;i<len;i++){if(br=Brackets[ch=line.charCodeAt(i)]){if(br<0){for(let sJ=sI-3;sJ>=0;sJ-=3){if(BracketStack[sJ+1]==-br){let flags=BracketStack[sJ+2];let type=flags&2?outerType:!(flags&4)?0:flags&1?oppositeType:outerType;if(type)types[i]=types[BracketStack[sJ]]=type;sI=sJ;break}}}else if(BracketStack.length==189){break}else{BracketStack[sI++]=i;BracketStack[sI++]=ch;BracketStack[sI++]=context}}else if((type=types[i])==2||type==1){let embed=type==outerType;context=embed?0:1;for(let sJ=sI-3;sJ>=0;sJ-=3){let cur=BracketStack[sJ+2];if(cur&2)break;if(embed){BracketStack[sJ+2]|=2}else{if(cur&4)break;BracketStack[sJ+2]|=4}}}}for(let i=0;i<len;i++){if(types[i]==256){let end=i+1;while(end<len&&types[end]==256)end++;let beforeL=(i?types[i-1]:outerType)==1;let afterL=(end<len?types[end]:outerType)==1;let replace=beforeL==afterL?beforeL?1:2:outerType;for(let j=i;j<end;j++)types[j]=replace;i=end-1}}let order=[];if(outerType==1){for(let i=0;i<len;){let start=i,rtl=types[i++]!=1;while(i<len&&rtl==(types[i]!=1))i++;if(rtl){for(let j=i;j>start;){let end=j,l=types[--j]!=2;while(j>start&&l==(types[j-1]!=2))j--;order.push(new BidiSpan(j,end,l?2:1))}}else{order.push(new BidiSpan(start,i,0))}}}else{for(let i=0;i<len;){let start=i,rtl=types[i++]==2;while(i<len&&rtl==(types[i]==2))i++;order.push(new BidiSpan(start,i,rtl?1:2))}}return order}function trivialOrder(length){return[new BidiSpan(0,length,0)]}let movedOver="";function moveVisually(line,order,dir,start,forward){var _a;let startIndex=start.head-line.from,spanI=-1;if(startIndex==0){if(!forward||!line.length)return null;if(order[0].level!=dir){startIndex=order[0].side(false,dir);spanI=0}}else if(startIndex==line.length){if(forward)return null;let last=order[order.length-1];if(last.level!=dir){startIndex=last.side(true,dir);spanI=order.length-1}}if(spanI<0)spanI=BidiSpan.find(order,startIndex,(_a=start.bidiLevel)!==null&&_a!==void 0?_a:-1,start.assoc);let span=order[spanI];if(startIndex==span.side(forward,dir)){span=order[spanI+=forward?1:-1];startIndex=span.side(!forward,dir)}let indexForward=forward==(span.dir==dir);let nextIndex=findClusterBreak(line.text,startIndex,indexForward);movedOver=line.text.slice(Math.min(startIndex,nextIndex),Math.max(startIndex,nextIndex));if(nextIndex!=span.side(forward,dir))return EditorSelection.cursor(nextIndex+line.from,indexForward?-1:1,span.level);let nextSpan=spanI==(forward?order.length-1:0)?null:order[spanI+(forward?1:-1)];if(!nextSpan&&span.level!=dir)return EditorSelection.cursor(forward?line.to:line.from,forward?-1:1,dir);if(nextSpan&&nextSpan.level<span.level)return EditorSelection.cursor(nextSpan.side(!forward,dir)+line.from,forward?1:-1,nextSpan.level);return EditorSelection.cursor(nextIndex+line.from,forward?-1:1,span.level)}const LineBreakPlaceholder="";class DOMReader{constructor(points,state){this.points=points;this.text="";this.lineSeparator=state.facet(EditorState.lineSeparator)}append(text){this.text+=text}lineBreak(){this.text+=LineBreakPlaceholder}readRange(start,end){if(!start)return this;let parent=start.parentNode;for(let cur=start;;){this.findPointBefore(parent,cur);this.readNode(cur);let next=cur.nextSibling;if(next==end)break;let view=ContentView.get(cur),nextView=ContentView.get(next);if(view&&nextView?view.breakAfter:(view?view.breakAfter:isBlockElement(cur))||isBlockElement(next)&&(cur.nodeName!="BR"||cur.cmIgnore))this.lineBreak();cur=next}this.findPointBefore(parent,end);return this}readTextNode(node){let text=node.nodeValue;for(let point of this.points)if(point.node==node)point.pos=this.text.length+Math.min(point.offset,text.length);for(let off=0,re=this.lineSeparator?null:/\r\n?|\n/g;;){let nextBreak=-1,breakSize=1,m;if(this.lineSeparator){nextBreak=text.indexOf(this.lineSeparator,off);breakSize=this.lineSeparator.length}else if(m=re.exec(text)){nextBreak=m.index;breakSize=m[0].length}this.append(text.slice(off,nextBreak<0?text.length:nextBreak));if(nextBreak<0)break;this.lineBreak();if(breakSize>1)for(let point of this.points)if(point.node==node&&point.pos>this.text.length)point.pos-=breakSize-1;off=nextBreak+breakSize}}readNode(node){if(node.cmIgnore)return;let view=ContentView.get(node);let fromView=view&&view.overrideDOMText;if(fromView!=null){this.findPointInside(node,fromView.length);for(let i=fromView.iter();!i.next().done;){if(i.lineBreak)this.lineBreak();else this.append(i.value)}}else if(node.nodeType==3){this.readTextNode(node)}else if(node.nodeName=="BR"){if(node.nextSibling)this.lineBreak()}else if(node.nodeType==1){this.readRange(node.firstChild,null)}}findPointBefore(node,next){for(let point of this.points)if(point.node==node&&node.childNodes[point.offset]==next)point.pos=this.text.length}findPointInside(node,maxLen){for(let point of this.points)if(node.nodeType==3?point.node==node:node.contains(point.node))point.pos=this.text.length+Math.min(maxLen,point.offset)}}function isBlockElement(node){return node.nodeType==1&&/^(DIV|P|LI|UL|OL|BLOCKQUOTE|DD|DT|H\d|SECTION|PRE)$/.test(node.nodeName)}class DOMPoint{constructor(node,offset){this.node=node;this.offset=offset;this.pos=-1}}class DocView extends ContentView{constructor(view){super();this.view=view;this.compositionDeco=Decoration.none;this.decorations=[];this.dynamicDecorationMap=[];this.minWidth=0;this.minWidthFrom=0;this.minWidthTo=0;this.impreciseAnchor=null;this.impreciseHead=null;this.forceSelection=false;this.lastUpdate=Date.now();this.setDOM(view.contentDOM);this.children=[new LineView];this.children[0].setParent(this);this.updateDeco();this.updateInner([new ChangedRange(0,0,0,view.state.doc.length)],0)}get editorView(){return this.view}get length(){return this.view.state.doc.length}update(update){let changedRanges=update.changedRanges;if(this.minWidth>0&&changedRanges.length){if(!changedRanges.every(({fromA,toA})=>toA<this.minWidthFrom||fromA>this.minWidthTo)){this.minWidth=this.minWidthFrom=this.minWidthTo=0}else{this.minWidthFrom=update.changes.mapPos(this.minWidthFrom,1);this.minWidthTo=update.changes.mapPos(this.minWidthTo,1)}}if(this.view.inputState.composing<0)this.compositionDeco=Decoration.none;else if(update.transactions.length||this.dirty)this.compositionDeco=computeCompositionDeco(this.view,update.changes);if((browser.ie||browser.chrome)&&!this.compositionDeco.size&&update&&update.state.doc.lines!=update.startState.doc.lines)this.forceSelection=true;let prevDeco=this.decorations,deco=this.updateDeco();let decoDiff=findChangedDeco(prevDeco,deco,update.changes);changedRanges=ChangedRange.extendWithRanges(changedRanges,decoDiff);if(this.dirty==0&&changedRanges.length==0){return false}else{this.updateInner(changedRanges,update.startState.doc.length);if(update.transactions.length)this.lastUpdate=Date.now();return true}}updateInner(changes,oldLength){this.view.viewState.mustMeasureContent=true;this.updateChildren(changes,oldLength);let{observer}=this.view;observer.ignore(()=>{this.dom.style.height=this.view.viewState.contentHeight+"px";this.dom.style.flexBasis=this.minWidth?this.minWidth+"px":"";let track=browser.chrome||browser.ios?{node:observer.selectionRange.focusNode,written:false}:undefined;this.sync(track);this.dirty=0;if(track&&(track.written||observer.selectionRange.focusNode!=track.node))this.forceSelection=true;this.dom.style.height=""});let gaps=[];if(this.view.viewport.from||this.view.viewport.to<this.view.state.doc.length)for(let child of this.children)if(child instanceof BlockWidgetView&&child.widget instanceof BlockGapWidget)gaps.push(child.dom);observer.updateGaps(gaps)}updateChildren(changes,oldLength){let cursor=this.childCursor(oldLength);for(let i=changes.length-1;;i--){let next=i>=0?changes[i]:null;if(!next)break;let{fromA,toA,fromB,toB}=next;let{content,breakAtStart,openStart,openEnd}=ContentBuilder.build(this.view.state.doc,fromB,toB,this.decorations,this.dynamicDecorationMap);let{i:toI,off:toOff}=cursor.findPos(toA,1);let{i:fromI,off:fromOff}=cursor.findPos(fromA,-1);replaceRange(this,fromI,fromOff,toI,toOff,content,breakAtStart,openStart,openEnd)}}updateSelection(mustRead=false,fromPointer=false){if(mustRead||!this.view.observer.selectionRange.focusNode)this.view.observer.readSelectionRange();if(!(fromPointer||this.mayControlSelection()))return;let force=this.forceSelection;this.forceSelection=false;let main=this.view.state.selection.main;let anchor=this.domAtPos(main.anchor);let head=main.empty?anchor:this.domAtPos(main.head);if(browser.gecko&&main.empty&&betweenUneditable(anchor)){let dummy=document.createTextNode("");this.view.observer.ignore(()=>anchor.node.insertBefore(dummy,anchor.node.childNodes[anchor.offset]||null));anchor=head=new DOMPos(dummy,0);force=true}let domSel=this.view.observer.selectionRange;if(force||!domSel.focusNode||!isEquivalentPosition(anchor.node,anchor.offset,domSel.anchorNode,domSel.anchorOffset)||!isEquivalentPosition(head.node,head.offset,domSel.focusNode,domSel.focusOffset)){this.view.observer.ignore(()=>{if(browser.android&&browser.chrome&&this.dom.contains(domSel.focusNode)&&inUneditable(domSel.focusNode,this.dom)){this.dom.blur();this.dom.focus({preventScroll:true})}let rawSel=getSelection(this.view.root);if(!rawSel);else if(main.empty){if(browser.gecko){let nextTo=nextToUneditable(anchor.node,anchor.offset);if(nextTo&&nextTo!=(1|2)){let text=nearbyTextNode(anchor.node,anchor.offset,nextTo==1?1:-1);if(text)anchor=new DOMPos(text,nextTo==1?0:text.nodeValue.length)}}rawSel.collapse(anchor.node,anchor.offset);if(main.bidiLevel!=null&&domSel.cursorBidiLevel!=null)domSel.cursorBidiLevel=main.bidiLevel}else if(rawSel.extend){rawSel.collapse(anchor.node,anchor.offset);try{rawSel.extend(head.node,head.offset)}catch(_){}}else{let range=document.createRange();if(main.anchor>main.head)[anchor,head]=[head,anchor];range.setEnd(head.node,head.offset);range.setStart(anchor.node,anchor.offset);rawSel.removeAllRanges();rawSel.addRange(range)}});this.view.observer.setSelectionRange(anchor,head)}this.impreciseAnchor=anchor.precise?null:new DOMPos(domSel.anchorNode,domSel.anchorOffset);this.impreciseHead=head.precise?null:new DOMPos(domSel.focusNode,domSel.focusOffset)}enforceCursorAssoc(){if(this.compositionDeco.size)return;let cursor=this.view.state.selection.main;let sel=getSelection(this.view.root);if(!sel||!cursor.empty||!cursor.assoc||!sel.modify)return;let line=LineView.find(this,cursor.head);if(!line)return;let lineStart=line.posAtStart;if(cursor.head==lineStart||cursor.head==lineStart+line.length)return;let before=this.coordsAt(cursor.head,-1),after=this.coordsAt(cursor.head,1);if(!before||!after||before.bottom>after.top)return;let dom=this.domAtPos(cursor.head+cursor.assoc);sel.collapse(dom.node,dom.offset);sel.modify("move",cursor.assoc<0?"forward":"backward","lineboundary")}mayControlSelection(){let active=this.view.root.activeElement;return active==this.dom||hasSelection(this.dom,this.view.observer.selectionRange)&&!(active&&this.dom.contains(active))}nearest(dom){for(let cur=dom;cur;){let domView=ContentView.get(cur);if(domView&&domView.rootView==this)return domView;cur=cur.parentNode}return null}posFromDOM(node,offset){let view=this.nearest(node);if(!view)throw new RangeError("Trying to find position for a DOM position outside of the document");return view.localPosFromDOM(node,offset)+view.posAtStart}domAtPos(pos){let{i,off}=this.childCursor().findPos(pos,-1);for(;i<this.children.length-1;){let child=this.children[i];if(off<child.length||child instanceof LineView)break;i++;off=0}return this.children[i].domAtPos(off)}coordsAt(pos,side){for(let off=this.length,i=this.children.length-1;;i--){let child=this.children[i],start=off-child.breakAfter-child.length;if(pos>start||pos==start&&child.type!=BlockType.WidgetBefore&&child.type!=BlockType.WidgetAfter&&(!i||side==2||this.children[i-1].breakAfter||this.children[i-1].type==BlockType.WidgetBefore&&side>-2))return child.coordsAt(pos-start,side);off=start}}measureVisibleLineHeights(viewport){let result=[],{from,to}=viewport;let contentWidth=this.view.contentDOM.clientWidth;let isWider=contentWidth>Math.max(this.view.scrollDOM.clientWidth,this.minWidth)+1;let widest=-1,ltr=this.view.textDirection==Direction.LTR;for(let pos=0,i=0;i<this.children.length;i++){let child=this.children[i],end=pos+child.length;if(end>to)break;if(pos>=from){let childRect=child.dom.getBoundingClientRect();result.push(childRect.height);if(isWider){let last=child.dom.lastChild;let rects=last?clientRectsFor(last):[];if(rects.length){let rect=rects[rects.length-1];let width=ltr?rect.right-childRect.left:childRect.right-rect.left;if(width>widest){widest=width;this.minWidth=contentWidth;this.minWidthFrom=pos;this.minWidthTo=end}}}}pos=end+child.breakAfter}return result}textDirectionAt(pos){let{i}=this.childPos(pos,1);return getComputedStyle(this.children[i].dom).direction=="rtl"?Direction.RTL:Direction.LTR}measureTextSize(){for(let child of this.children){if(child instanceof LineView){let measure=child.measureTextSize();if(measure)return measure}}let dummy=document.createElement("div"),lineHeight,charWidth;dummy.className="cm-line";dummy.style.width="99999px";dummy.textContent="abc def ghi jkl mno pqr stu";this.view.observer.ignore(()=>{this.dom.appendChild(dummy);let rect=clientRectsFor(dummy.firstChild)[0];lineHeight=dummy.getBoundingClientRect().height;charWidth=rect?rect.width/27:7;dummy.remove()});return{lineHeight:lineHeight,charWidth:charWidth}}childCursor(pos=this.length){let i=this.children.length;if(i)pos-=this.children[--i].length;return new ChildCursor(this.children,pos,i)}computeBlockGapDeco(){let deco=[],vs=this.view.viewState;for(let pos=0,i=0;;i++){let next=i==vs.viewports.length?null:vs.viewports[i];let end=next?next.from-1:this.length;if(end>pos){let height=vs.lineBlockAt(end).bottom-vs.lineBlockAt(pos).top;deco.push(Decoration.replace({widget:new BlockGapWidget(height),block:true,inclusive:true,isBlockGap:true}).range(pos,end))}if(!next)break;pos=next.to+1}return Decoration.set(deco)}updateDeco(){let allDeco=this.view.state.facet(decorations).map((d,i)=>{let dynamic=this.dynamicDecorationMap[i]=typeof d=="function";return dynamic?d(this.view):d});for(let i=allDeco.length;i<allDeco.length+3;i++)this.dynamicDecorationMap[i]=false;return this.decorations=[...allDeco,this.compositionDeco,this.computeBlockGapDeco(),this.view.viewState.lineGapDeco]}scrollIntoView(target){let{range}=target;let rect=this.coordsAt(range.head,range.empty?range.assoc:range.head>range.anchor?-1:1),other;if(!rect)return;if(!range.empty&&(other=this.coordsAt(range.anchor,range.anchor>range.head?-1:1)))rect={left:Math.min(rect.left,other.left),top:Math.min(rect.top,other.top),right:Math.max(rect.right,other.right),bottom:Math.max(rect.bottom,other.bottom)};let mLeft=0,mRight=0,mTop=0,mBottom=0;for(let margins of this.view.state.facet(scrollMargins).map(f=>f(this.view)))if(margins){let{left,right,top,bottom}=margins;if(left!=null)mLeft=Math.max(mLeft,left);if(right!=null)mRight=Math.max(mRight,right);if(top!=null)mTop=Math.max(mTop,top);if(bottom!=null)mBottom=Math.max(mBottom,bottom)}let targetRect={left:rect.left-mLeft,top:rect.top-mTop,right:rect.right+mRight,bottom:rect.bottom+mBottom};scrollRectIntoView(this.view.scrollDOM,targetRect,range.head<range.anchor?-1:1,target.x,target.y,target.xMargin,target.yMargin,this.view.textDirection==Direction.LTR)}}function betweenUneditable(pos){return pos.node.nodeType==1&&pos.node.firstChild&&(pos.offset==0||pos.node.childNodes[pos.offset-1].contentEditable=="false")&&(pos.offset==pos.node.childNodes.length||pos.node.childNodes[pos.offset].contentEditable=="false")}class BlockGapWidget extends WidgetType{constructor(height){super();this.height=height}toDOM(){let elt=document.createElement("div");this.updateDOM(elt);return elt}eq(other){return other.height==this.height}updateDOM(elt){elt.style.height=this.height+"px";return true}get estimatedHeight(){return this.height}}function compositionSurroundingNode(view){let sel=view.observer.selectionRange;let textNode=sel.focusNode&&nearbyTextNode(sel.focusNode,sel.focusOffset,0);if(!textNode)return null;let cView=view.docView.nearest(textNode);if(!cView)return null;if(cView instanceof LineView){let topNode=textNode;while(topNode.parentNode!=cView.dom)topNode=topNode.parentNode;let prev=topNode.previousSibling;while(prev&&!ContentView.get(prev))prev=prev.previousSibling;let pos=prev?ContentView.get(prev).posAtEnd:cView.posAtStart;return{from:pos,to:pos,node:topNode,text:textNode}}else{for(;;){let{parent}=cView;if(!parent)return null;if(parent instanceof LineView)break;cView=parent}let from=cView.posAtStart;return{from:from,to:from+cView.length,node:cView.dom,text:textNode}}}function computeCompositionDeco(view,changes){let surrounding=compositionSurroundingNode(view);if(!surrounding)return Decoration.none;let{from,to,node,text:textNode}=surrounding;let newFrom=changes.mapPos(from,1),newTo=Math.max(newFrom,changes.mapPos(to,-1));let{state}=view,text=node.nodeType==3?node.nodeValue:new DOMReader([],state).readRange(node.firstChild,null).text;if(newTo-newFrom<text.length){if(state.doc.sliceString(newFrom,Math.min(state.doc.length,newFrom+text.length),LineBreakPlaceholder)==text)newTo=newFrom+text.length;else if(state.doc.sliceString(Math.max(0,newTo-text.length),newTo,LineBreakPlaceholder)==text)newFrom=newTo-text.length;else return Decoration.none}else if(state.doc.sliceString(newFrom,newTo,LineBreakPlaceholder)!=text){return Decoration.none}let topView=ContentView.get(node);if(topView instanceof CompositionView)topView=topView.widget.topView;else if(topView)topView.parent=null;return Decoration.set(Decoration.replace({widget:new CompositionWidget(node,textNode,topView),inclusive:true}).range(newFrom,newTo))}class CompositionWidget extends WidgetType{constructor(top,text,topView){super();this.top=top;this.text=text;this.topView=topView}eq(other){return this.top==other.top&&this.text==other.text}toDOM(){return this.top}ignoreEvent(){return false}get customView(){return CompositionView}}function nearbyTextNode(node,offset,side){for(;;){if(node.nodeType==3)return node;if(node.nodeType==1&&offset>0&&side<=0){node=node.childNodes[offset-1];offset=maxOffset(node)}else if(node.nodeType==1&&offset<node.childNodes.length&&side>=0){node=node.childNodes[offset];offset=0}else{return null}}}function nextToUneditable(node,offset){if(node.nodeType!=1)return 0;return(offset&&node.childNodes[offset-1].contentEditable=="false"?1:0)|(offset<node.childNodes.length&&node.childNodes[offset].contentEditable=="false"?2:0)}class DecorationComparator$1{constructor(){this.changes=[]}compareRange(from,to){addRange(from,to,this.changes)}comparePoint(from,to){addRange(from,to,this.changes)}}function findChangedDeco(a,b,diff){let comp=new DecorationComparator$1;RangeSet.compare(a,b,diff,comp);return comp.changes}function inUneditable(node,inside){for(let cur=node;cur&&cur!=inside;cur=cur.assignedSlot||cur.parentNode){if(cur.nodeType==1&&cur.contentEditable=="false"){return true}}return false}function groupAt(state,pos,bias=1){let categorize=state.charCategorizer(pos);let line=state.doc.lineAt(pos),linePos=pos-line.from;if(line.length==0)return EditorSelection.cursor(pos);if(linePos==0)bias=1;else if(linePos==line.length)bias=-1;let from=linePos,to=linePos;if(bias<0)from=findClusterBreak(line.text,linePos,false);else to=findClusterBreak(line.text,linePos);let cat=categorize(line.text.slice(from,to));while(from>0){let prev=findClusterBreak(line.text,from,false);if(categorize(line.text.slice(prev,from))!=cat)break;from=prev}while(to<line.length){let next=findClusterBreak(line.text,to);if(categorize(line.text.slice(to,next))!=cat)break;to=next}return EditorSelection.range(from+line.from,to+line.from)}function getdx(x,rect){return rect.left>x?rect.left-x:Math.max(0,x-rect.right)}function getdy(y,rect){return rect.top>y?rect.top-y:Math.max(0,y-rect.bottom)}function yOverlap(a,b){return a.top<b.bottom-1&&a.bottom>b.top+1}function upTop(rect,top){return top<rect.top?{top:top,left:rect.left,right:rect.right,bottom:rect.bottom}:rect}function upBot(rect,bottom){return bottom>rect.bottom?{top:rect.top,left:rect.left,right:rect.right,bottom:bottom}:rect}function domPosAtCoords(parent,x,y){let closest,closestRect,closestX,closestY,closestOverlap=false;let above,below,aboveRect,belowRect;for(let child=parent.firstChild;child;child=child.nextSibling){let rects=clientRectsFor(child);for(let i=0;i<rects.length;i++){let rect=rects[i];if(closestRect&&yOverlap(closestRect,rect))rect=upTop(upBot(rect,closestRect.bottom),closestRect.top);let dx=getdx(x,rect),dy=getdy(y,rect);if(dx==0&&dy==0)return child.nodeType==3?domPosInText(child,x,y):domPosAtCoords(child,x,y);if(!closest||closestY>dy||closestY==dy&&closestX>dx){closest=child;closestRect=rect;closestX=dx;closestY=dy;closestOverlap=!dx||(dx>0?i<rects.length-1:i>0)}if(dx==0){if(y>rect.bottom&&(!aboveRect||aboveRect.bottom<rect.bottom)){above=child;aboveRect=rect}else if(y<rect.top&&(!belowRect||belowRect.top>rect.top)){below=child;belowRect=rect}}else if(aboveRect&&yOverlap(aboveRect,rect)){aboveRect=upBot(aboveRect,rect.bottom)}else if(belowRect&&yOverlap(belowRect,rect)){belowRect=upTop(belowRect,rect.top)}}}if(aboveRect&&aboveRect.bottom>=y){closest=above;closestRect=aboveRect}else if(belowRect&&belowRect.top<=y){closest=below;closestRect=belowRect}if(!closest)return{node:parent,offset:0};let clipX=Math.max(closestRect.left,Math.min(closestRect.right,x));if(closest.nodeType==3)return domPosInText(closest,clipX,y);if(closestOverlap&&closest.contentEditable!="false")return domPosAtCoords(closest,clipX,y);let offset=Array.prototype.indexOf.call(parent.childNodes,closest)+(x>=(closestRect.left+closestRect.right)/2?1:0);return{node:parent,offset:offset}}function domPosInText(node,x,y){let len=node.nodeValue.length;let closestOffset=-1,closestDY=1e9,generalSide=0;for(let i=0;i<len;i++){let rects=textRange(node,i,i+1).getClientRects();for(let j=0;j<rects.length;j++){let rect=rects[j];if(rect.top==rect.bottom)continue;if(!generalSide)generalSide=x-rect.left;let dy=(rect.top>y?rect.top-y:y-rect.bottom)-1;if(rect.left-1<=x&&rect.right+1>=x&&dy<closestDY){let right=x>=(rect.left+rect.right)/2,after=right;if(browser.chrome||browser.gecko){let rectBefore=textRange(node,i).getBoundingClientRect();if(rectBefore.left==rect.right)after=!right}if(dy<=0)return{node:node,offset:i+(after?1:0)};closestOffset=i+(after?1:0);closestDY=dy}}}return{node:node,offset:closestOffset>-1?closestOffset:generalSide>0?node.nodeValue.length:0}}function posAtCoords(view,{x,y},precise,bias=-1){var _a;let content=view.contentDOM.getBoundingClientRect(),docTop=content.top+view.viewState.paddingTop;let block,{docHeight}=view.viewState;let yOffset=y-docTop;if(yOffset<0)return 0;if(yOffset>docHeight)return view.state.doc.length;for(let halfLine=view.defaultLineHeight/2,bounced=false;;){block=view.elementAtHeight(yOffset);if(block.type==BlockType.Text)break;for(;;){yOffset=bias>0?block.bottom+halfLine:block.top-halfLine;if(yOffset>=0&&yOffset<=docHeight)break;if(bounced)return precise?null:0;bounced=true;bias=-bias}}y=docTop+yOffset;let lineStart=block.from;if(lineStart<view.viewport.from)return view.viewport.from==0?0:precise?null:posAtCoordsImprecise(view,content,block,x,y);if(lineStart>view.viewport.to)return view.viewport.to==view.state.doc.length?view.state.doc.length:precise?null:posAtCoordsImprecise(view,content,block,x,y);let doc=view.dom.ownerDocument;let root=view.root.elementFromPoint?view.root:doc;let element=root.elementFromPoint(x,y);if(element&&!view.contentDOM.contains(element))element=null;if(!element){x=Math.max(content.left+1,Math.min(content.right-1,x));element=root.elementFromPoint(x,y);if(element&&!view.contentDOM.contains(element))element=null}let node,offset=-1;if(element&&((_a=view.docView.nearest(element))===null||_a===void 0?void 0:_a.isEditable)!=false){if(doc.caretPositionFromPoint){let pos=doc.caretPositionFromPoint(x,y);if(pos)({offsetNode:node,offset}=pos)}else if(doc.caretRangeFromPoint){let range=doc.caretRangeFromPoint(x,y);if(range){({startContainer:node,startOffset:offset}=range);if(!view.contentDOM.contains(node)||browser.safari&&isSuspiciousSafariCaretResult(node,offset,x)||browser.chrome&&isSuspiciousChromeCaretResult(node,offset,x))node=undefined}}}if(!node||!view.docView.dom.contains(node)){let line=LineView.find(view.docView,lineStart);if(!line)return yOffset>block.top+block.height/2?block.to:block.from;({node,offset}=domPosAtCoords(line.dom,x,y))}return view.docView.posFromDOM(node,offset)}function posAtCoordsImprecise(view,contentRect,block,x,y){let into=Math.round((x-contentRect.left)*view.defaultCharacterWidth);if(view.lineWrapping&&block.height>view.defaultLineHeight*1.5){let line=Math.floor((y-block.top)/view.defaultLineHeight);into+=line*view.viewState.heightOracle.lineLength}let content=view.state.sliceDoc(block.from,block.to);return block.from+findColumn(content,into,view.state.tabSize)}function isSuspiciousSafariCaretResult(node,offset,x){let len;if(node.nodeType!=3||offset!=(len=node.nodeValue.length))return false;for(let next=node.nextSibling;next;next=next.nextSibling)if(next.nodeType!=1||next.nodeName!="BR")return false;return textRange(node,len-1,len).getBoundingClientRect().left>x}function isSuspiciousChromeCaretResult(node,offset,x){if(offset!=0)return false;for(let cur=node;;){let parent=cur.parentNode;if(!parent||parent.nodeType!=1||parent.firstChild!=cur)return false;if(parent.classList.contains("cm-line"))break;cur=parent}let rect=node.nodeType==1?node.getBoundingClientRect():textRange(node,0,Math.max(node.nodeValue.length,1)).getBoundingClientRect();return x-rect.left>5}function moveToLineBoundary(view,start,forward,includeWrap){let line=view.state.doc.lineAt(start.head);let coords=!includeWrap||!view.lineWrapping?null:view.coordsAtPos(start.assoc<0&&start.head>line.from?start.head-1:start.head);if(coords){let editorRect=view.dom.getBoundingClientRect();let direction=view.textDirectionAt(line.from);let pos=view.posAtCoords({x:forward==(direction==Direction.LTR)?editorRect.right-1:editorRect.left+1,y:(coords.top+coords.bottom)/2});if(pos!=null)return EditorSelection.cursor(pos,forward?-1:1)}let lineView=LineView.find(view.docView,start.head);let end=lineView?forward?lineView.posAtEnd:lineView.posAtStart:forward?line.to:line.from;return EditorSelection.cursor(end,forward?-1:1)}function moveByChar(view,start,forward,by){let line=view.state.doc.lineAt(start.head),spans=view.bidiSpans(line);let direction=view.textDirectionAt(line.from);for(let cur=start,check=null;;){let next=moveVisually(line,spans,direction,cur,forward),char=movedOver;if(!next){if(line.number==(forward?view.state.doc.lines:1))return cur;char="\n";line=view.state.doc.line(line.number+(forward?1:-1));spans=view.bidiSpans(line);next=EditorSelection.cursor(forward?line.from:line.to)}if(!check){if(!by)return next;check=by(char)}else if(!check(char)){return cur}cur=next}}function byGroup(view,pos,start){let categorize=view.state.charCategorizer(pos);let cat=categorize(start);return next=>{let nextCat=categorize(next);if(cat==CharCategory.Space)cat=nextCat;return cat==nextCat}}function moveVertically(view,start,forward,distance){let startPos=start.head,dir=forward?1:-1;if(startPos==(forward?view.state.doc.length:0))return EditorSelection.cursor(startPos,start.assoc);let goal=start.goalColumn,startY;let rect=view.contentDOM.getBoundingClientRect();let startCoords=view.coordsAtPos(startPos),docTop=view.documentTop;if(startCoords){if(goal==null)goal=startCoords.left-rect.left;startY=dir<0?startCoords.top:startCoords.bottom}else{let line=view.viewState.lineBlockAt(startPos);if(goal==null)goal=Math.min(rect.right-rect.left,view.defaultCharacterWidth*(startPos-line.from));startY=(dir<0?line.top:line.bottom)+docTop}let resolvedGoal=rect.left+goal;let dist=distance!==null&&distance!==void 0?distance:view.defaultLineHeight>>1;for(let extra=0;;extra+=10){let curY=startY+(dist+extra)*dir;let pos=posAtCoords(view,{x:resolvedGoal,y:curY},false,dir);if(curY<rect.top||curY>rect.bottom||(dir<0?pos<startPos:pos>startPos))return EditorSelection.cursor(pos,start.assoc,undefined,goal)}}function skipAtoms(view,oldPos,pos){let atoms=view.state.facet(atomicRanges).map(f=>f(view));for(;;){let moved=false;for(let set of atoms){set.between(pos.from-1,pos.from+1,(from,to,value)=>{if(pos.from>from&&pos.from<to){pos=oldPos.head>pos.from?EditorSelection.cursor(from,1):EditorSelection.cursor(to,-1);moved=true}})}if(!moved)return pos}}class InputState{constructor(view){this.lastKeyCode=0;this.lastKeyTime=0;this.lastTouchTime=0;this.lastFocusTime=0;this.lastScrollTop=0;this.lastScrollLeft=0;this.chromeScrollHack=-1;this.pendingIOSKey=undefined;this.lastSelectionOrigin=null;this.lastSelectionTime=0;this.lastEscPress=0;this.lastContextMenu=0;this.scrollHandlers=[];this.registeredEvents=[];this.customHandlers=[];this.composing=-1;this.compositionFirstChange=null;this.compositionEndedAt=0;this.mouseSelection=null;for(let type in handlers){let handler=handlers[type];view.contentDOM.addEventListener(type,event=>{if(!eventBelongsToEditor(view,event)||this.ignoreDuringComposition(event))return;if(type=="keydown"&&this.keydown(view,event))return;if(this.mustFlushObserver(event))view.observer.forceFlush();if(this.runCustomHandlers(type,view,event))event.preventDefault();else handler(view,event)},handlerOptions[type]);this.registeredEvents.push(type)}if(browser.chrome&&browser.chrome_version==102){view.scrollDOM.addEventListener("wheel",()=>{if(this.chromeScrollHack<0)view.contentDOM.style.pointerEvents="none";else window.clearTimeout(this.chromeScrollHack);this.chromeScrollHack=setTimeout(()=>{this.chromeScrollHack=-1;view.contentDOM.style.pointerEvents=""},100)},{passive:true})}this.notifiedFocused=view.hasFocus;if(browser.safari)view.contentDOM.addEventListener("input",()=>null)}setSelectionOrigin(origin){this.lastSelectionOrigin=origin;this.lastSelectionTime=Date.now()}ensureHandlers(view,plugins){var _a;let handlers;this.customHandlers=[];for(let plugin of plugins)if(handlers=(_a=plugin.update(view).spec)===null||_a===void 0?void 0:_a.domEventHandlers){this.customHandlers.push({plugin:plugin.value,handlers:handlers});for(let type in handlers)if(this.registeredEvents.indexOf(type)<0&&type!="scroll"){this.registeredEvents.push(type);view.contentDOM.addEventListener(type,event=>{if(!eventBelongsToEditor(view,event))return;if(this.runCustomHandlers(type,view,event))event.preventDefault()})}}}runCustomHandlers(type,view,event){for(let set of this.customHandlers){let handler=set.handlers[type];if(handler){try{if(handler.call(set.plugin,event,view)||event.defaultPrevented)return true}catch(e){logException(view.state,e)}}}return false}runScrollHandlers(view,event){this.lastScrollTop=view.scrollDOM.scrollTop;this.lastScrollLeft=view.scrollDOM.scrollLeft;for(let set of this.customHandlers){let handler=set.handlers.scroll;if(handler){try{handler.call(set.plugin,event,view)}catch(e){logException(view.state,e)}}}}keydown(view,event){this.lastKeyCode=event.keyCode;this.lastKeyTime=Date.now();if(event.keyCode==9&&Date.now()<this.lastEscPress+2e3)return true;if(browser.android&&browser.chrome&&!event.synthetic&&(event.keyCode==13||event.keyCode==8)){view.observer.delayAndroidKey(event.key,event.keyCode);return true}let pending;if(browser.ios&&!event.synthetic&&!event.altKey&&!event.metaKey&&((pending=PendingKeys.find(key=>key.keyCode==event.keyCode))&&!event.ctrlKey||EmacsyPendingKeys.indexOf(event.key)>-1&&event.ctrlKey&&!event.shiftKey)){this.pendingIOSKey=pending||event;setTimeout(()=>this.flushIOSKey(view),250);return true}return false}flushIOSKey(view){let key=this.pendingIOSKey;if(!key)return false;this.pendingIOSKey=undefined;return dispatchKey(view.contentDOM,key.key,key.keyCode)}ignoreDuringComposition(event){if(!/^key/.test(event.type))return false;if(this.composing>0)return true;if(browser.safari&&!browser.ios&&Date.now()-this.compositionEndedAt<100){this.compositionEndedAt=0;return true}return false}mustFlushObserver(event){return event.type=="keydown"&&event.keyCode!=229}startMouseSelection(mouseSelection){if(this.mouseSelection)this.mouseSelection.destroy();this.mouseSelection=mouseSelection}update(update){if(this.mouseSelection)this.mouseSelection.update(update);if(update.transactions.length)this.lastKeyCode=this.lastSelectionTime=0}destroy(){if(this.mouseSelection)this.mouseSelection.destroy()}}const PendingKeys=[{key:"Backspace",keyCode:8,inputType:"deleteContentBackward"},{key:"Enter",keyCode:13,inputType:"insertParagraph"},{key:"Delete",keyCode:46,inputType:"deleteContentForward"}];const EmacsyPendingKeys="dthko";const modifierCodes=[16,17,18,20,91,92,224,225];class MouseSelection{constructor(view,startEvent,style,mustSelect){this.view=view;this.style=style;this.mustSelect=mustSelect;this.lastEvent=startEvent;let doc=view.contentDOM.ownerDocument;doc.addEventListener("mousemove",this.move=this.move.bind(this));doc.addEventListener("mouseup",this.up=this.up.bind(this));this.extend=startEvent.shiftKey;this.multiple=view.state.facet(EditorState.allowMultipleSelections)&&addsSelectionRange(view,startEvent);this.dragMove=dragMovesSelection(view,startEvent);this.dragging=isInPrimarySelection(view,startEvent)&&getClickType(startEvent)==1?null:false;if(this.dragging===false){startEvent.preventDefault();this.select(startEvent)}}move(event){if(event.buttons==0)return this.destroy();if(this.dragging!==false)return;this.select(this.lastEvent=event)}up(event){if(this.dragging==null)this.select(this.lastEvent);if(!this.dragging)event.preventDefault();this.destroy()}destroy(){let doc=this.view.contentDOM.ownerDocument;doc.removeEventListener("mousemove",this.move);doc.removeEventListener("mouseup",this.up);this.view.inputState.mouseSelection=null}select(event){let selection=this.style.get(event,this.extend,this.multiple);if(this.mustSelect||!selection.eq(this.view.state.selection)||selection.main.assoc!=this.view.state.selection.main.assoc)this.view.dispatch({selection:selection,userEvent:"select.pointer",scrollIntoView:true});this.mustSelect=false}update(update){if(update.docChanged&&this.dragging)this.dragging=this.dragging.map(update.changes);if(this.style.update(update))setTimeout(()=>this.select(this.lastEvent),20)}}function addsSelectionRange(view,event){let facet=view.state.facet(clickAddsSelectionRange);return facet.length?facet[0](event):browser.mac?event.metaKey:event.ctrlKey}function dragMovesSelection(view,event){let facet=view.state.facet(dragMovesSelection$1);return facet.length?facet[0](event):browser.mac?!event.altKey:!event.ctrlKey}function isInPrimarySelection(view,event){let{main}=view.state.selection;if(main.empty)return false;let sel=getSelection(view.root);if(!sel||sel.rangeCount==0)return true;let rects=sel.getRangeAt(0).getClientRects();for(let i=0;i<rects.length;i++){let rect=rects[i];if(rect.left<=event.clientX&&rect.right>=event.clientX&&rect.top<=event.clientY&&rect.bottom>=event.clientY)return true}return false}function eventBelongsToEditor(view,event){if(!event.bubbles)return true;if(event.defaultPrevented)return false;for(let node=event.target,cView;node!=view.contentDOM;node=node.parentNode)if(!node||node.nodeType==11||(cView=ContentView.get(node))&&cView.ignoreEvent(event))return false;return true}const handlers=Object.create(null);const handlerOptions=Object.create(null);const brokenClipboardAPI=browser.ie&&browser.ie_version<15||browser.ios&&browser.webkit_version<604;function capturePaste(view){let parent=view.dom.parentNode;if(!parent)return;let target=parent.appendChild(document.createElement("textarea"));target.style.cssText="position: fixed; left: -10000px; top: 10px";target.focus();setTimeout(()=>{view.focus();target.remove();doPaste(view,target.value)},50)}function doPaste(view,input){let{state}=view,changes,i=1,text=state.toText(input);let byLine=text.lines==state.selection.ranges.length;let linewise=lastLinewiseCopy!=null&&state.selection.ranges.every(r=>r.empty)&&lastLinewiseCopy==text.toString();if(linewise){let lastLine=-1;changes=state.changeByRange(range=>{let line=state.doc.lineAt(range.from);if(line.from==lastLine)return{range:range};lastLine=line.from;let insert=state.toText((byLine?text.line(i++).text:input)+state.lineBreak);return{changes:{from:line.from,insert:insert},range:EditorSelection.cursor(range.from+insert.length)}})}else if(byLine){changes=state.changeByRange(range=>{let line=text.line(i++);return{changes:{from:range.from,to:range.to,insert:line.text},range:EditorSelection.cursor(range.from+line.length)}})}else{changes=state.replaceSelection(text)}view.dispatch(changes,{userEvent:"input.paste",scrollIntoView:true})}handlers.keydown=(view,event)=>{view.inputState.setSelectionOrigin("select");if(event.keyCode==27)view.inputState.lastEscPress=Date.now();else if(modifierCodes.indexOf(event.keyCode)<0)view.inputState.lastEscPress=0};handlers.touchstart=(view,e)=>{view.inputState.lastTouchTime=Date.now();view.inputState.setSelectionOrigin("select.pointer")};handlers.touchmove=view=>{view.inputState.setSelectionOrigin("select.pointer")};handlerOptions.touchstart=handlerOptions.touchmove={passive:true};handlers.mousedown=(view,event)=>{view.observer.flush();if(view.inputState.lastTouchTime>Date.now()-2e3)return;let style=null;for(let makeStyle of view.state.facet(mouseSelectionStyle)){style=makeStyle(view,event);if(style)break}if(!style&&event.button==0)style=basicMouseSelection(view,event);if(style){let mustFocus=view.root.activeElement!=view.contentDOM;if(mustFocus)view.observer.ignore(()=>focusPreventScroll(view.contentDOM));view.inputState.startMouseSelection(new MouseSelection(view,event,style,mustFocus))}};function rangeForClick(view,pos,bias,type){if(type==1){return EditorSelection.cursor(pos,bias)}else if(type==2){return groupAt(view.state,pos,bias)}else{let visual=LineView.find(view.docView,pos),line=view.state.doc.lineAt(visual?visual.posAtEnd:pos);let from=visual?visual.posAtStart:line.from,to=visual?visual.posAtEnd:line.to;if(to<view.state.doc.length&&to==line.to)to++;return EditorSelection.range(from,to)}}let insideY=(y,rect)=>y>=rect.top&&y<=rect.bottom;let inside=(x,y,rect)=>insideY(y,rect)&&x>=rect.left&&x<=rect.right;function findPositionSide(view,pos,x,y){let line=LineView.find(view.docView,pos);if(!line)return 1;let off=pos-line.posAtStart;if(off==0)return 1;if(off==line.length)return-1;let before=line.coordsAt(off,-1);if(before&&inside(x,y,before))return-1;let after=line.coordsAt(off,1);if(after&&inside(x,y,after))return 1;return before&&insideY(y,before)?-1:1}function queryPos(view,event){let pos=view.posAtCoords({x:event.clientX,y:event.clientY},false);return{pos:pos,bias:findPositionSide(view,pos,event.clientX,event.clientY)}}const BadMouseDetail=browser.ie&&browser.ie_version<=11;let lastMouseDown=null,lastMouseDownCount=0,lastMouseDownTime=0;function getClickType(event){if(!BadMouseDetail)return event.detail;let last=lastMouseDown,lastTime=lastMouseDownTime;lastMouseDown=event;lastMouseDownTime=Date.now();return lastMouseDownCount=!last||lastTime>Date.now()-400&&Math.abs(last.clientX-event.clientX)<2&&Math.abs(last.clientY-event.clientY)<2?(lastMouseDownCount+1)%3:1}function basicMouseSelection(view,event){let start=queryPos(view,event),type=getClickType(event);let startSel=view.state.selection;let last=start,lastEvent=event;return{update(update){if(update.docChanged){start.pos=update.changes.mapPos(start.pos);startSel=startSel.map(update.changes);lastEvent=null}},get(event,extend,multiple){let cur;if(lastEvent&&event.clientX==lastEvent.clientX&&event.clientY==lastEvent.clientY)cur=last;else{cur=last=queryPos(view,event);lastEvent=event}let range=rangeForClick(view,cur.pos,cur.bias,type);if(start.pos!=cur.pos&&!extend){let startRange=rangeForClick(view,start.pos,start.bias,type);let from=Math.min(startRange.from,range.from),to=Math.max(startRange.to,range.to);range=from<range.from?EditorSelection.range(from,to):EditorSelection.range(to,from)}if(extend)return startSel.replaceRange(startSel.main.extend(range.from,range.to));else if(multiple&&startSel.ranges.length>1&&startSel.ranges.some(r=>r.eq(range)))return removeRange(startSel,range);else if(multiple)return startSel.addRange(range);else return EditorSelection.create([range])}}}function removeRange(sel,range){for(let i=0;;i++){if(sel.ranges[i].eq(range))return EditorSelection.create(sel.ranges.slice(0,i).concat(sel.ranges.slice(i+1)),sel.mainIndex==i?0:sel.mainIndex-(sel.mainIndex>i?1:0))}}handlers.dragstart=(view,event)=>{let{selection:{main}}=view.state;let{mouseSelection}=view.inputState;if(mouseSelection)mouseSelection.dragging=main;if(event.dataTransfer){event.dataTransfer.setData("Text",view.state.sliceDoc(main.from,main.to));event.dataTransfer.effectAllowed="copyMove"}};function dropText(view,event,text,direct){if(!text)return;let dropPos=view.posAtCoords({x:event.clientX,y:event.clientY},false);event.preventDefault();let{mouseSelection}=view.inputState;let del=direct&&mouseSelection&&mouseSelection.dragging&&mouseSelection.dragMove?{from:mouseSelection.dragging.from,to:mouseSelection.dragging.to}:null;let ins={from:dropPos,insert:text};let changes=view.state.changes(del?[del,ins]:ins);view.focus();view.dispatch({changes:changes,selection:{anchor:changes.mapPos(dropPos,-1),head:changes.mapPos(dropPos,1)},userEvent:del?"move.drop":"input.drop"})}handlers.drop=(view,event)=>{if(!event.dataTransfer)return;if(view.state.readOnly)return event.preventDefault();let files=event.dataTransfer.files;if(files&&files.length){event.preventDefault();let text=Array(files.length),read=0;let finishFile=()=>{if(++read==files.length)dropText(view,event,text.filter(s=>s!=null).join(view.state.lineBreak),false)};for(let i=0;i<files.length;i++){let reader=new FileReader;reader.onerror=finishFile;reader.onload=()=>{if(!/[\x00-\x08\x0e-\x1f]{2}/.test(reader.result))text[i]=reader.result;finishFile()};reader.readAsText(files[i])}}else{dropText(view,event,event.dataTransfer.getData("Text"),true)}};handlers.paste=(view,event)=>{if(view.state.readOnly)return event.preventDefault();view.observer.flush();let data=brokenClipboardAPI?null:event.clipboardData;if(data){doPaste(view,data.getData("text/plain"));event.preventDefault()}else{capturePaste(view)}};function captureCopy(view,text){let parent=view.dom.parentNode;if(!parent)return;let target=parent.appendChild(document.createElement("textarea"));target.style.cssText="position: fixed; left: -10000px; top: 10px";target.value=text;target.focus();target.selectionEnd=text.length;target.selectionStart=0;setTimeout(()=>{target.remove();view.focus()},50)}function copiedRange(state){let content=[],ranges=[],linewise=false;for(let range of state.selection.ranges)if(!range.empty){content.push(state.sliceDoc(range.from,range.to));ranges.push(range)}if(!content.length){let upto=-1;for(let{from}of state.selection.ranges){let line=state.doc.lineAt(from);if(line.number>upto){content.push(line.text);ranges.push({from:line.from,to:Math.min(state.doc.length,line.to+1)})}upto=line.number}linewise=true}return{text:content.join(state.lineBreak),ranges:ranges,linewise:linewise}}let lastLinewiseCopy=null;handlers.copy=handlers.cut=(view,event)=>{let{text,ranges,linewise}=copiedRange(view.state);if(!text&&!linewise)return;lastLinewiseCopy=linewise?text:null;let data=brokenClipboardAPI?null:event.clipboardData;if(data){event.preventDefault();data.clearData();data.setData("text/plain",text)}else{captureCopy(view,text)}if(event.type=="cut"&&!view.state.readOnly)view.dispatch({changes:ranges,scrollIntoView:true,userEvent:"delete.cut"})};function updateForFocusChange(view){setTimeout(()=>{if(view.hasFocus!=view.inputState.notifiedFocused)view.update([])},10)}handlers.focus=view=>{view.inputState.lastFocusTime=Date.now();if(!view.scrollDOM.scrollTop&&(view.inputState.lastScrollTop||view.inputState.lastScrollLeft)){view.scrollDOM.scrollTop=view.inputState.lastScrollTop;view.scrollDOM.scrollLeft=view.inputState.lastScrollLeft}updateForFocusChange(view)};handlers.blur=view=>{view.observer.clearSelectionRange();updateForFocusChange(view)};handlers.compositionstart=handlers.compositionupdate=view=>{if(view.inputState.compositionFirstChange==null)view.inputState.compositionFirstChange=true;if(view.inputState.composing<0){view.inputState.composing=0}};handlers.compositionend=view=>{view.inputState.composing=-1;view.inputState.compositionEndedAt=Date.now();view.inputState.compositionFirstChange=null;if(browser.chrome&&browser.android)view.observer.flushSoon();setTimeout(()=>{if(view.inputState.composing<0&&view.docView.compositionDeco.size)view.update([])},50)};handlers.contextmenu=view=>{view.inputState.lastContextMenu=Date.now()};handlers.beforeinput=(view,event)=>{var _a;let pending;if(browser.chrome&&browser.android&&(pending=PendingKeys.find(key=>key.inputType==event.inputType))){view.observer.delayAndroidKey(pending.key,pending.keyCode);if(pending.key=="Backspace"||pending.key=="Delete"){let startViewHeight=((_a=window.visualViewport)===null||_a===void 0?void 0:_a.height)||0;setTimeout(()=>{var _a;if((((_a=window.visualViewport)===null||_a===void 0?void 0:_a.height)||0)>startViewHeight+10&&view.hasFocus){view.contentDOM.blur();view.focus()}},100)}}};const wrappingWhiteSpace=["pre-wrap","normal","pre-line","break-spaces"];class HeightOracle{constructor(){this.doc=Text.empty;this.lineWrapping=false;this.heightSamples={};this.lineHeight=14;this.charWidth=7;this.lineLength=30;this.heightChanged=false}heightForGap(from,to){let lines=this.doc.lineAt(to).number-this.doc.lineAt(from).number+1;if(this.lineWrapping)lines+=Math.ceil((to-from-lines*this.lineLength*.5)/this.lineLength);return this.lineHeight*lines}heightForLine(length){if(!this.lineWrapping)return this.lineHeight;let lines=1+Math.max(0,Math.ceil((length-this.lineLength)/(this.lineLength-5)));return lines*this.lineHeight}setDoc(doc){this.doc=doc;return this}mustRefreshForWrapping(whiteSpace){return wrappingWhiteSpace.indexOf(whiteSpace)>-1!=this.lineWrapping}mustRefreshForHeights(lineHeights){let newHeight=false;for(let i=0;i<lineHeights.length;i++){let h=lineHeights[i];if(h<0){i++}else if(!this.heightSamples[Math.floor(h*10)]){newHeight=true;this.heightSamples[Math.floor(h*10)]=true}}return newHeight}refresh(whiteSpace,lineHeight,charWidth,lineLength,knownHeights){let lineWrapping=wrappingWhiteSpace.indexOf(whiteSpace)>-1;let changed=Math.round(lineHeight)!=Math.round(this.lineHeight)||this.lineWrapping!=lineWrapping;this.lineWrapping=lineWrapping;this.lineHeight=lineHeight;this.charWidth=charWidth;this.lineLength=lineLength;if(changed){this.heightSamples={};for(let i=0;i<knownHeights.length;i++){let h=knownHeights[i];if(h<0)i++;else this.heightSamples[Math.floor(h*10)]=true}}return changed}}class MeasuredHeights{constructor(from,heights){this.from=from;this.heights=heights;this.index=0}get more(){return this.index<this.heights.length}}class BlockInfo{constructor(from,length,top,height,type){this.from=from;this.length=length;this.top=top;this.height=height;this.type=type}get to(){return this.from+this.length}get bottom(){return this.top+this.height}join(other){let detail=(Array.isArray(this.type)?this.type:[this]).concat(Array.isArray(other.type)?other.type:[other]);return new BlockInfo(this.from,this.length+other.length,this.top,this.height+other.height,detail)}}var QueryType=function(QueryType){QueryType[QueryType["ByPos"]=0]="ByPos";QueryType[QueryType["ByHeight"]=1]="ByHeight";QueryType[QueryType["ByPosNoHeight"]=2]="ByPosNoHeight";return QueryType}(QueryType||(QueryType={}));const Epsilon=.001;class HeightMap{constructor(length,height,flags=2){this.length=length;this.height=height;this.flags=flags}get outdated(){return(this.flags&2)>0}set outdated(value){this.flags=(value?2:0)|this.flags&~2}setHeight(oracle,height){if(this.height!=height){if(Math.abs(this.height-height)>Epsilon)oracle.heightChanged=true;this.height=height}}replace(_from,_to,nodes){return HeightMap.of(nodes)}decomposeLeft(_to,result){result.push(this)}decomposeRight(_from,result){result.push(this)}applyChanges(decorations,oldDoc,oracle,changes){let me=this;for(let i=changes.length-1;i>=0;i--){let{fromA,toA,fromB,toB}=changes[i];let start=me.lineAt(fromA,QueryType.ByPosNoHeight,oldDoc,0,0);let end=start.to>=toA?start:me.lineAt(toA,QueryType.ByPosNoHeight,oldDoc,0,0);toB+=end.to-toA;toA=end.to;while(i>0&&start.from<=changes[i-1].toA){fromA=changes[i-1].fromA;fromB=changes[i-1].fromB;i--;if(fromA<start.from)start=me.lineAt(fromA,QueryType.ByPosNoHeight,oldDoc,0,0)}fromB+=start.from-fromA;fromA=start.from;let nodes=NodeBuilder.build(oracle,decorations,fromB,toB);me=me.replace(fromA,toA,nodes)}return me.updateHeight(oracle,0)}static empty(){return new HeightMapText(0,0)}static of(nodes){if(nodes.length==1)return nodes[0];let i=0,j=nodes.length,before=0,after=0;for(;;){if(i==j){if(before>after*2){let split=nodes[i-1];if(split.break)nodes.splice(--i,1,split.left,null,split.right);else nodes.splice(--i,1,split.left,split.right);j+=1+split.break;before-=split.size}else if(after>before*2){let split=nodes[j];if(split.break)nodes.splice(j,1,split.left,null,split.right);else nodes.splice(j,1,split.left,split.right);j+=2+split.break;after-=split.size}else{break}}else if(before<after){let next=nodes[i++];if(next)before+=next.size}else{let next=nodes[--j];if(next)after+=next.size}}let brk=0;if(nodes[i-1]==null){brk=1;i--}else if(nodes[i]==null){brk=1;j++}return new HeightMapBranch(HeightMap.of(nodes.slice(0,i)),brk,HeightMap.of(nodes.slice(j)))}}HeightMap.prototype.size=1;class HeightMapBlock extends HeightMap{constructor(length,height,type){super(length,height);this.type=type}blockAt(_height,_doc,top,offset){return new BlockInfo(offset,this.length,top,this.height,this.type)}lineAt(_value,_type,doc,top,offset){return this.blockAt(0,doc,top,offset)}forEachLine(from,to,doc,top,offset,f){if(from<=offset+this.length&&to>=offset)f(this.blockAt(0,doc,top,offset))}updateHeight(oracle,offset=0,_force=false,measured){if(measured&&measured.from<=offset&&measured.more)this.setHeight(oracle,measured.heights[measured.index++]);this.outdated=false;return this}toString(){return`block(${this.length})`}}class HeightMapText extends HeightMapBlock{constructor(length,height){super(length,height,BlockType.Text);this.collapsed=0;this.widgetHeight=0}replace(_from,_to,nodes){let node=nodes[0];if(nodes.length==1&&(node instanceof HeightMapText||node instanceof HeightMapGap&&node.flags&4)&&Math.abs(this.length-node.length)<10){if(node instanceof HeightMapGap)node=new HeightMapText(node.length,this.height);else node.height=this.height;if(!this.outdated)node.outdated=false;return node}else{return HeightMap.of(nodes)}}updateHeight(oracle,offset=0,force=false,measured){if(measured&&measured.from<=offset&&measured.more)this.setHeight(oracle,measured.heights[measured.index++]);else if(force||this.outdated)this.setHeight(oracle,Math.max(this.widgetHeight,oracle.heightForLine(this.length-this.collapsed)));this.outdated=false;return this}toString(){return`line(${this.length}${this.collapsed?-this.collapsed:""}${this.widgetHeight?":"+this.widgetHeight:""})`}}class HeightMapGap extends HeightMap{constructor(length){super(length,0)}lines(doc,offset){let firstLine=doc.lineAt(offset).number,lastLine=doc.lineAt(offset+this.length).number;return{firstLine:firstLine,lastLine:lastLine,lineHeight:this.height/(lastLine-firstLine+1)}}blockAt(height,doc,top,offset){let{firstLine,lastLine,lineHeight}=this.lines(doc,offset);let line=Math.max(0,Math.min(lastLine-firstLine,Math.floor((height-top)/lineHeight)));let{from,length}=doc.line(firstLine+line);return new BlockInfo(from,length,top+lineHeight*line,lineHeight,BlockType.Text)}lineAt(value,type,doc,top,offset){if(type==QueryType.ByHeight)return this.blockAt(value,doc,top,offset);if(type==QueryType.ByPosNoHeight){let{from,to}=doc.lineAt(value);return new BlockInfo(from,to-from,0,0,BlockType.Text)}let{firstLine,lineHeight}=this.lines(doc,offset);let{from,length,number}=doc.lineAt(value);return new BlockInfo(from,length,top+lineHeight*(number-firstLine),lineHeight,BlockType.Text)}forEachLine(from,to,doc,top,offset,f){let{firstLine,lineHeight}=this.lines(doc,offset);for(let pos=Math.max(from,offset),end=Math.min(offset+this.length,to);pos<=end;){let line=doc.lineAt(pos);if(pos==from)top+=lineHeight*(line.number-firstLine);f(new BlockInfo(line.from,line.length,top,lineHeight,BlockType.Text));top+=lineHeight;pos=line.to+1}}replace(from,to,nodes){let after=this.length-to;if(after>0){let last=nodes[nodes.length-1];if(last instanceof HeightMapGap)nodes[nodes.length-1]=new HeightMapGap(last.length+after);else nodes.push(null,new HeightMapGap(after-1))}if(from>0){let first=nodes[0];if(first instanceof HeightMapGap)nodes[0]=new HeightMapGap(from+first.length);else nodes.unshift(new HeightMapGap(from-1),null)}return HeightMap.of(nodes)}decomposeLeft(to,result){result.push(new HeightMapGap(to-1),null)}decomposeRight(from,result){result.push(null,new HeightMapGap(this.length-from-1))}updateHeight(oracle,offset=0,force=false,measured){let end=offset+this.length;if(measured&&measured.from<=offset+this.length&&measured.more){let nodes=[],pos=Math.max(offset,measured.from),singleHeight=-1;let wasChanged=oracle.heightChanged;if(measured.from>offset)nodes.push(new HeightMapGap(measured.from-offset-1).updateHeight(oracle,offset));while(pos<=end&&measured.more){let len=oracle.doc.lineAt(pos).length;if(nodes.length)nodes.push(null);let height=measured.heights[measured.index++];if(singleHeight==-1)singleHeight=height;else if(Math.abs(height-singleHeight)>=Epsilon)singleHeight=-2;let line=new HeightMapText(len,height);line.outdated=false;nodes.push(line);pos+=len+1}if(pos<=end)nodes.push(null,new HeightMapGap(end-pos).updateHeight(oracle,pos));let result=HeightMap.of(nodes);oracle.heightChanged=wasChanged||singleHeight<0||Math.abs(result.height-this.height)>=Epsilon||Math.abs(singleHeight-this.lines(oracle.doc,offset).lineHeight)>=Epsilon;return result}else if(force||this.outdated){this.setHeight(oracle,oracle.heightForGap(offset,offset+this.length));this.outdated=false}return this}toString(){return`gap(${this.length})`}}class HeightMapBranch extends HeightMap{constructor(left,brk,right){super(left.length+brk+right.length,left.height+right.height,brk|(left.outdated||right.outdated?2:0));this.left=left;this.right=right;this.size=left.size+right.size}get break(){return this.flags&1}blockAt(height,doc,top,offset){let mid=top+this.left.height;return height<mid?this.left.blockAt(height,doc,top,offset):this.right.blockAt(height,doc,mid,offset+this.left.length+this.break)}lineAt(value,type,doc,top,offset){let rightTop=top+this.left.height,rightOffset=offset+this.left.length+this.break;let left=type==QueryType.ByHeight?value<rightTop:value<rightOffset;let base=left?this.left.lineAt(value,type,doc,top,offset):this.right.lineAt(value,type,doc,rightTop,rightOffset);if(this.break||(left?base.to<rightOffset:base.from>rightOffset))return base;let subQuery=type==QueryType.ByPosNoHeight?QueryType.ByPosNoHeight:QueryType.ByPos;if(left)return base.join(this.right.lineAt(rightOffset,subQuery,doc,rightTop,rightOffset));else return this.left.lineAt(rightOffset,subQuery,doc,top,offset).join(base)}forEachLine(from,to,doc,top,offset,f){let rightTop=top+this.left.height,rightOffset=offset+this.left.length+this.break;if(this.break){if(from<rightOffset)this.left.forEachLine(from,to,doc,top,offset,f);if(to>=rightOffset)this.right.forEachLine(from,to,doc,rightTop,rightOffset,f)}else{let mid=this.lineAt(rightOffset,QueryType.ByPos,doc,top,offset);if(from<mid.from)this.left.forEachLine(from,mid.from-1,doc,top,offset,f);if(mid.to>=from&&mid.from<=to)f(mid);if(to>mid.to)this.right.forEachLine(mid.to+1,to,doc,rightTop,rightOffset,f)}}replace(from,to,nodes){let rightStart=this.left.length+this.break;if(to<rightStart)return this.balanced(this.left.replace(from,to,nodes),this.right);if(from>this.left.length)return this.balanced(this.left,this.right.replace(from-rightStart,to-rightStart,nodes));let result=[];if(from>0)this.decomposeLeft(from,result);let left=result.length;for(let node of nodes)result.push(node);if(from>0)mergeGaps(result,left-1);if(to<this.length){let right=result.length;this.decomposeRight(to,result);mergeGaps(result,right)}return HeightMap.of(result)}decomposeLeft(to,result){let left=this.left.length;if(to<=left)return this.left.decomposeLeft(to,result);result.push(this.left);if(this.break){left++;if(to>=left)result.push(null)}if(to>left)this.right.decomposeLeft(to-left,result)}decomposeRight(from,result){let left=this.left.length,right=left+this.break;if(from>=right)return this.right.decomposeRight(from-right,result);if(from<left)this.left.decomposeRight(from,result);if(this.break&&from<right)result.push(null);result.push(this.right)}balanced(left,right){if(left.size>2*right.size||right.size>2*left.size)return HeightMap.of(this.break?[left,null,right]:[left,right]);this.left=left;this.right=right;this.height=left.height+right.height;this.outdated=left.outdated||right.outdated;this.size=left.size+right.size;this.length=left.length+this.break+right.length;return this}updateHeight(oracle,offset=0,force=false,measured){let{left,right}=this,rightStart=offset+left.length+this.break,rebalance=null;if(measured&&measured.from<=offset+left.length&&measured.more)rebalance=left=left.updateHeight(oracle,offset,force,measured);else left.updateHeight(oracle,offset,force);if(measured&&measured.from<=rightStart+right.length&&measured.more)rebalance=right=right.updateHeight(oracle,rightStart,force,measured);else right.updateHeight(oracle,rightStart,force);if(rebalance)return this.balanced(left,right);this.height=this.left.height+this.right.height;this.outdated=false;return this}toString(){return this.left+(this.break?" ":"-")+this.right}}function mergeGaps(nodes,around){let before,after;if(nodes[around]==null&&(before=nodes[around-1])instanceof HeightMapGap&&(after=nodes[around+1])instanceof HeightMapGap)nodes.splice(around-1,3,new HeightMapGap(before.length+1+after.length))}const relevantWidgetHeight=5;class NodeBuilder{constructor(pos,oracle){this.pos=pos;this.oracle=oracle;this.nodes=[];this.lineStart=-1;this.lineEnd=-1;this.covering=null;this.writtenTo=pos}get isCovered(){return this.covering&&this.nodes[this.nodes.length-1]==this.covering}span(_from,to){if(this.lineStart>-1){let end=Math.min(to,this.lineEnd),last=this.nodes[this.nodes.length-1];if(last instanceof HeightMapText)last.length+=end-this.pos;else if(end>this.pos||!this.isCovered)this.nodes.push(new HeightMapText(end-this.pos,-1));this.writtenTo=end;if(to>end){this.nodes.push(null);this.writtenTo++;this.lineStart=-1}}this.pos=to}point(from,to,deco){if(from<to||deco.heightRelevant){let height=deco.widget?deco.widget.estimatedHeight:0;if(height<0)height=this.oracle.lineHeight;let len=to-from;if(deco.block){this.addBlock(new HeightMapBlock(len,height,deco.type))}else if(len||height>=relevantWidgetHeight){this.addLineDeco(height,len)}}else if(to>from){this.span(from,to)}if(this.lineEnd>-1&&this.lineEnd<this.pos)this.lineEnd=this.oracle.doc.lineAt(this.pos).to}enterLine(){if(this.lineStart>-1)return;let{from,to}=this.oracle.doc.lineAt(this.pos);this.lineStart=from;this.lineEnd=to;if(this.writtenTo<from){if(this.writtenTo<from-1||this.nodes[this.nodes.length-1]==null)this.nodes.push(this.blankContent(this.writtenTo,from-1));this.nodes.push(null)}if(this.pos>from)this.nodes.push(new HeightMapText(this.pos-from,-1));this.writtenTo=this.pos}blankContent(from,to){let gap=new HeightMapGap(to-from);if(this.oracle.doc.lineAt(from).to==to)gap.flags|=4;return gap}ensureLine(){this.enterLine();let last=this.nodes.length?this.nodes[this.nodes.length-1]:null;if(last instanceof HeightMapText)return last;let line=new HeightMapText(0,-1);this.nodes.push(line);return line}addBlock(block){this.enterLine();if(block.type==BlockType.WidgetAfter&&!this.isCovered)this.ensureLine();this.nodes.push(block);this.writtenTo=this.pos=this.pos+block.length;if(block.type!=BlockType.WidgetBefore)this.covering=block}addLineDeco(height,length){let line=this.ensureLine();line.length+=length;line.collapsed+=length;line.widgetHeight=Math.max(line.widgetHeight,height);this.writtenTo=this.pos=this.pos+length}finish(from){let last=this.nodes.length==0?null:this.nodes[this.nodes.length-1];if(this.lineStart>-1&&!(last instanceof HeightMapText)&&!this.isCovered)this.nodes.push(new HeightMapText(0,-1));else if(this.writtenTo<this.pos||last==null)this.nodes.push(this.blankContent(this.writtenTo,this.pos));let pos=from;for(let node of this.nodes){if(node instanceof HeightMapText)node.updateHeight(this.oracle,pos);pos+=node?node.length:1}return this.nodes}static build(oracle,decorations,from,to){let builder=new NodeBuilder(from,oracle);RangeSet.spans(decorations,from,to,builder,0);return builder.finish(from)}}function heightRelevantDecoChanges(a,b,diff){let comp=new DecorationComparator;RangeSet.compare(a,b,diff,comp,0);return comp.changes}class DecorationComparator{constructor(){this.changes=[]}compareRange(){}comparePoint(from,to,a,b){if(from<to||a&&a.heightRelevant||b&&b.heightRelevant)addRange(from,to,this.changes,5)}}function visiblePixelRange(dom,paddingTop){let rect=dom.getBoundingClientRect();let doc=dom.ownerDocument,win=doc.defaultView||window;let left=Math.max(0,rect.left),right=Math.min(win.innerWidth,rect.right);let top=Math.max(0,rect.top),bottom=Math.min(win.innerHeight,rect.bottom);for(let parent=dom.parentNode;parent&&parent!=doc.body;){if(parent.nodeType==1){let elt=parent;let style=window.getComputedStyle(elt);if((elt.scrollHeight>elt.clientHeight||elt.scrollWidth>elt.clientWidth)&&style.overflow!="visible"){let parentRect=elt.getBoundingClientRect();left=Math.max(left,parentRect.left);right=Math.min(right,parentRect.right);top=Math.max(top,parentRect.top);bottom=parent==dom.parentNode?parentRect.bottom:Math.min(bottom,parentRect.bottom)}parent=style.position=="absolute"||style.position=="fixed"?elt.offsetParent:elt.parentNode}else if(parent.nodeType==11){parent=parent.host}else{break}}return{left:left-rect.left,right:Math.max(left,right)-rect.left,top:top-(rect.top+paddingTop),bottom:Math.max(top,bottom)-(rect.top+paddingTop)}}function fullPixelRange(dom,paddingTop){let rect=dom.getBoundingClientRect();return{left:0,right:rect.right-rect.left,top:paddingTop,bottom:rect.bottom-(rect.top+paddingTop)}}class LineGap{constructor(from,to,size){this.from=from;this.to=to;this.size=size}static same(a,b){if(a.length!=b.length)return false;for(let i=0;i<a.length;i++){let gA=a[i],gB=b[i];if(gA.from!=gB.from||gA.to!=gB.to||gA.size!=gB.size)return false}return true}draw(wrapping){return Decoration.replace({widget:new LineGapWidget(this.size,wrapping)}).range(this.from,this.to)}}class LineGapWidget extends WidgetType{constructor(size,vertical){super();this.size=size;this.vertical=vertical}eq(other){return other.size==this.size&&other.vertical==this.vertical}toDOM(){let elt=document.createElement("div");if(this.vertical){elt.style.height=this.size+"px"}else{elt.style.width=this.size+"px";elt.style.height="2px";elt.style.display="inline-block"}return elt}get estimatedHeight(){return this.vertical?this.size:-1}}class ViewState{constructor(state){this.state=state;this.pixelViewport={left:0,right:window.innerWidth,top:0,bottom:0};this.inView=true;this.paddingTop=0;this.paddingBottom=0;this.contentDOMWidth=0;this.contentDOMHeight=0;this.editorHeight=0;this.editorWidth=0;this.heightOracle=new HeightOracle;this.scaler=IdScaler;this.scrollTarget=null;this.printing=false;this.mustMeasureContent=true;this.defaultTextDirection=Direction.RTL;this.visibleRanges=[];this.mustEnforceCursorAssoc=false;this.stateDeco=state.facet(decorations).filter(d=>typeof d!="function");this.heightMap=HeightMap.empty().applyChanges(this.stateDeco,Text.empty,this.heightOracle.setDoc(state.doc),[new ChangedRange(0,0,0,state.doc.length)]);this.viewport=this.getViewport(0,null);this.updateViewportLines();this.updateForViewport();this.lineGaps=this.ensureLineGaps([]);this.lineGapDeco=Decoration.set(this.lineGaps.map(gap=>gap.draw(false)));this.computeVisibleRanges()}updateForViewport(){let viewports=[this.viewport],{main}=this.state.selection;for(let i=0;i<=1;i++){let pos=i?main.head:main.anchor;if(!viewports.some(({from,to})=>pos>=from&&pos<=to)){let{from,to}=this.lineBlockAt(pos);viewports.push(new Viewport(from,to))}}this.viewports=viewports.sort((a,b)=>a.from-b.from);this.scaler=this.heightMap.height<=7e6?IdScaler:new BigScaler(this.heightOracle.doc,this.heightMap,this.viewports)}updateViewportLines(){this.viewportLines=[];this.heightMap.forEachLine(this.viewport.from,this.viewport.to,this.state.doc,0,0,block=>{this.viewportLines.push(this.scaler.scale==1?block:scaleBlock(block,this.scaler))})}update(update,scrollTarget=null){this.state=update.state;let prevDeco=this.stateDeco;this.stateDeco=this.state.facet(decorations).filter(d=>typeof d!="function");let contentChanges=update.changedRanges;let heightChanges=ChangedRange.extendWithRanges(contentChanges,heightRelevantDecoChanges(prevDeco,this.stateDeco,update?update.changes:ChangeSet.empty(this.state.doc.length)));let prevHeight=this.heightMap.height;this.heightMap=this.heightMap.applyChanges(this.stateDeco,update.startState.doc,this.heightOracle.setDoc(this.state.doc),heightChanges);if(this.heightMap.height!=prevHeight)update.flags|=2;let viewport=heightChanges.length?this.mapViewport(this.viewport,update.changes):this.viewport;if(scrollTarget&&(scrollTarget.range.head<viewport.from||scrollTarget.range.head>viewport.to)||!this.viewportIsAppropriate(viewport))viewport=this.getViewport(0,scrollTarget);let updateLines=!update.changes.empty||update.flags&2||viewport.from!=this.viewport.from||viewport.to!=this.viewport.to;this.viewport=viewport;this.updateForViewport();if(updateLines)this.updateViewportLines();if(this.lineGaps.length||this.viewport.to-this.viewport.from>2e3<<1)this.updateLineGaps(this.ensureLineGaps(this.mapLineGaps(this.lineGaps,update.changes)));update.flags|=this.computeVisibleRanges();if(scrollTarget)this.scrollTarget=scrollTarget;if(!this.mustEnforceCursorAssoc&&update.selectionSet&&update.view.lineWrapping&&update.state.selection.main.empty&&update.state.selection.main.assoc)this.mustEnforceCursorAssoc=true}measure(view){let dom=view.contentDOM,style=window.getComputedStyle(dom);let oracle=this.heightOracle;let whiteSpace=style.whiteSpace;this.defaultTextDirection=style.direction=="rtl"?Direction.RTL:Direction.LTR;let refresh=this.heightOracle.mustRefreshForWrapping(whiteSpace);let measureContent=refresh||this.mustMeasureContent||this.contentDOMHeight!=dom.clientHeight;this.contentDOMHeight=dom.clientHeight;this.mustMeasureContent=false;let result=0,bias=0;let paddingTop=parseInt(style.paddingTop)||0,paddingBottom=parseInt(style.paddingBottom)||0;if(this.paddingTop!=paddingTop||this.paddingBottom!=paddingBottom){this.paddingTop=paddingTop;this.paddingBottom=paddingBottom;result|=8|2}if(this.editorWidth!=view.scrollDOM.clientWidth){if(oracle.lineWrapping)measureContent=true;this.editorWidth=view.scrollDOM.clientWidth;result|=8}let pixelViewport=(this.printing?fullPixelRange:visiblePixelRange)(dom,this.paddingTop);let dTop=pixelViewport.top-this.pixelViewport.top,dBottom=pixelViewport.bottom-this.pixelViewport.bottom;this.pixelViewport=pixelViewport;let inView=this.pixelViewport.bottom>this.pixelViewport.top&&this.pixelViewport.right>this.pixelViewport.left;if(inView!=this.inView){this.inView=inView;if(inView)measureContent=true}if(!this.inView&&!this.scrollTarget)return 0;let contentWidth=dom.clientWidth;if(this.contentDOMWidth!=contentWidth||this.editorHeight!=view.scrollDOM.clientHeight){this.contentDOMWidth=contentWidth;this.editorHeight=view.scrollDOM.clientHeight;result|=8}if(measureContent){let lineHeights=view.docView.measureVisibleLineHeights(this.viewport);if(oracle.mustRefreshForHeights(lineHeights))refresh=true;if(refresh||oracle.lineWrapping&&Math.abs(contentWidth-this.contentDOMWidth)>oracle.charWidth){let{lineHeight,charWidth}=view.docView.measureTextSize();refresh=lineHeight>0&&oracle.refresh(whiteSpace,lineHeight,charWidth,contentWidth/charWidth,lineHeights);if(refresh){view.docView.minWidth=0;result|=8}}if(dTop>0&&dBottom>0)bias=Math.max(dTop,dBottom);else if(dTop<0&&dBottom<0)bias=Math.min(dTop,dBottom);oracle.heightChanged=false;for(let vp of this.viewports){let heights=vp.from==this.viewport.from?lineHeights:view.docView.measureVisibleLineHeights(vp);this.heightMap=this.heightMap.updateHeight(oracle,0,refresh,new MeasuredHeights(vp.from,heights))}if(oracle.heightChanged)result|=2}let viewportChange=!this.viewportIsAppropriate(this.viewport,bias)||this.scrollTarget&&(this.scrollTarget.range.head<this.viewport.from||this.scrollTarget.range.head>this.viewport.to);if(viewportChange)this.viewport=this.getViewport(bias,this.scrollTarget);this.updateForViewport();if(result&2||viewportChange)this.updateViewportLines();if(this.lineGaps.length||this.viewport.to-this.viewport.from>2e3<<1)this.updateLineGaps(this.ensureLineGaps(refresh?[]:this.lineGaps,view));result|=this.computeVisibleRanges();if(this.mustEnforceCursorAssoc){this.mustEnforceCursorAssoc=false;view.docView.enforceCursorAssoc()}return result}get visibleTop(){return this.scaler.fromDOM(this.pixelViewport.top)}get visibleBottom(){return this.scaler.fromDOM(this.pixelViewport.bottom)}getViewport(bias,scrollTarget){let marginTop=.5-Math.max(-.5,Math.min(.5,bias/1e3/2));let map=this.heightMap,doc=this.state.doc,{visibleTop,visibleBottom}=this;let viewport=new Viewport(map.lineAt(visibleTop-marginTop*1e3,QueryType.ByHeight,doc,0,0).from,map.lineAt(visibleBottom+(1-marginTop)*1e3,QueryType.ByHeight,doc,0,0).to);if(scrollTarget){let{head}=scrollTarget.range;if(head<viewport.from||head>viewport.to){let viewHeight=Math.min(this.editorHeight,this.pixelViewport.bottom-this.pixelViewport.top);let block=map.lineAt(head,QueryType.ByPos,doc,0,0),topPos;if(scrollTarget.y=="center")topPos=(block.top+block.bottom)/2-viewHeight/2;else if(scrollTarget.y=="start"||scrollTarget.y=="nearest"&&head<viewport.from)topPos=block.top;else topPos=block.bottom-viewHeight;viewport=new Viewport(map.lineAt(topPos-1e3/2,QueryType.ByHeight,doc,0,0).from,map.lineAt(topPos+viewHeight+1e3/2,QueryType.ByHeight,doc,0,0).to)}}return viewport}mapViewport(viewport,changes){let from=changes.mapPos(viewport.from,-1),to=changes.mapPos(viewport.to,1);return new Viewport(this.heightMap.lineAt(from,QueryType.ByPos,this.state.doc,0,0).from,this.heightMap.lineAt(to,QueryType.ByPos,this.state.doc,0,0).to)}viewportIsAppropriate({from,to},bias=0){if(!this.inView)return true;let{top}=this.heightMap.lineAt(from,QueryType.ByPos,this.state.doc,0,0);let{bottom}=this.heightMap.lineAt(to,QueryType.ByPos,this.state.doc,0,0);let{visibleTop,visibleBottom}=this;return(from==0||top<=visibleTop-Math.max(10,Math.min(-bias,250)))&&(to==this.state.doc.length||bottom>=visibleBottom+Math.max(10,Math.min(bias,250)))&&(top>visibleTop-2*1e3&&bottom<visibleBottom+2*1e3)}mapLineGaps(gaps,changes){if(!gaps.length||changes.empty)return gaps;let mapped=[];for(let gap of gaps)if(!changes.touchesRange(gap.from,gap.to))mapped.push(new LineGap(changes.mapPos(gap.from),changes.mapPos(gap.to),gap.size));return mapped}ensureLineGaps(current,mayMeasure){let wrapping=this.heightOracle.lineWrapping;let margin=wrapping?1e4:2e3,halfMargin=margin>>1,doubleMargin=margin<<1;if(this.defaultTextDirection!=Direction.LTR&&!wrapping)return[];let gaps=[];let addGap=(from,to,line,structure)=>{if(to-from<halfMargin)return;let sel=this.state.selection.main,avoid=[sel.from];if(!sel.empty)avoid.push(sel.to);for(let pos of avoid){if(pos>from&&pos<to){addGap(from,pos-10,line,structure);addGap(pos+10,to,line,structure);return}}let gap=find(current,gap=>gap.from>=line.from&&gap.to<=line.to&&Math.abs(gap.from-from)<halfMargin&&Math.abs(gap.to-to)<halfMargin&&!avoid.some(pos=>gap.from<pos&&gap.to>pos));if(!gap){if(to<line.to&&mayMeasure&&wrapping&&mayMeasure.visibleRanges.some(r=>r.from<=to&&r.to>=to)){let lineStart=mayMeasure.moveToLineBoundary(EditorSelection.cursor(to),false,true).head;if(lineStart>from)to=lineStart}gap=new LineGap(from,to,this.gapSize(line,from,to,structure))}gaps.push(gap)};for(let line of this.viewportLines){if(line.length<doubleMargin)continue;let structure=lineStructure(line.from,line.to,this.stateDeco);if(structure.total<doubleMargin)continue;let target=this.scrollTarget?this.scrollTarget.range.head:null;let viewFrom,viewTo;if(wrapping){let marginHeight=margin/this.heightOracle.lineLength*this.heightOracle.lineHeight;let top,bot;if(target!=null){let targetFrac=findFraction(structure,target);let spaceFrac=((this.visibleBottom-this.visibleTop)/2+marginHeight)/line.height;top=targetFrac-spaceFrac;bot=targetFrac+spaceFrac}else{top=(this.visibleTop-line.top-marginHeight)/line.height;bot=(this.visibleBottom-line.top+marginHeight)/line.height}viewFrom=findPosition(structure,top);viewTo=findPosition(structure,bot)}else{let totalWidth=structure.total*this.heightOracle.charWidth;let marginWidth=margin*this.heightOracle.charWidth;let left,right;if(target!=null){let targetFrac=findFraction(structure,target);let spaceFrac=((this.pixelViewport.right-this.pixelViewport.left)/2+marginWidth)/totalWidth;left=targetFrac-spaceFrac;right=targetFrac+spaceFrac}else{left=(this.pixelViewport.left-marginWidth)/totalWidth;right=(this.pixelViewport.right+marginWidth)/totalWidth}viewFrom=findPosition(structure,left);viewTo=findPosition(structure,right)}if(viewFrom>line.from)addGap(line.from,viewFrom,line,structure);if(viewTo<line.to)addGap(viewTo,line.to,line,structure)}return gaps}gapSize(line,from,to,structure){let fraction=findFraction(structure,to)-findFraction(structure,from);if(this.heightOracle.lineWrapping){return line.height*fraction}else{return structure.total*this.heightOracle.charWidth*fraction}}updateLineGaps(gaps){if(!LineGap.same(gaps,this.lineGaps)){this.lineGaps=gaps;this.lineGapDeco=Decoration.set(gaps.map(gap=>gap.draw(this.heightOracle.lineWrapping)))}}computeVisibleRanges(){let deco=this.stateDeco;if(this.lineGaps.length)deco=deco.concat(this.lineGapDeco);let ranges=[];RangeSet.spans(deco,this.viewport.from,this.viewport.to,{span(from,to){ranges.push({from:from,to:to})},point(){}},20);let changed=ranges.length!=this.visibleRanges.length||this.visibleRanges.some((r,i)=>r.from!=ranges[i].from||r.to!=ranges[i].to);this.visibleRanges=ranges;return changed?4:0}lineBlockAt(pos){return pos>=this.viewport.from&&pos<=this.viewport.to&&this.viewportLines.find(b=>b.from<=pos&&b.to>=pos)||scaleBlock(this.heightMap.lineAt(pos,QueryType.ByPos,this.state.doc,0,0),this.scaler)}lineBlockAtHeight(height){return scaleBlock(this.heightMap.lineAt(this.scaler.fromDOM(height),QueryType.ByHeight,this.state.doc,0,0),this.scaler)}elementAtHeight(height){return scaleBlock(this.heightMap.blockAt(this.scaler.fromDOM(height),this.state.doc,0,0),this.scaler)}get docHeight(){return this.scaler.toDOM(this.heightMap.height)}get contentHeight(){return this.docHeight+this.paddingTop+this.paddingBottom}}class Viewport{constructor(from,to){this.from=from;this.to=to}}function lineStructure(from,to,stateDeco){let ranges=[],pos=from,total=0;RangeSet.spans(stateDeco,from,to,{span(){},point(from,to){if(from>pos){ranges.push({from:pos,to:from});total+=from-pos}pos=to}},20);if(pos<to){ranges.push({from:pos,to:to});total+=to-pos}return{total:total,ranges:ranges}}function findPosition({total,ranges},ratio){if(ratio<=0)return ranges[0].from;if(ratio>=1)return ranges[ranges.length-1].to;let dist=Math.floor(total*ratio);for(let i=0;;i++){let{from,to}=ranges[i],size=to-from;if(dist<=size)return from+dist;dist-=size}}function findFraction(structure,pos){let counted=0;for(let{from,to}of structure.ranges){if(pos<=to){counted+=pos-from;break}counted+=to-from}return counted/structure.total}function find(array,f){for(let val of array)if(f(val))return val;return undefined}const IdScaler={toDOM(n){return n},fromDOM(n){return n},scale:1};class BigScaler{constructor(doc,heightMap,viewports){let vpHeight=0,base=0,domBase=0;this.viewports=viewports.map(({from,to})=>{let top=heightMap.lineAt(from,QueryType.ByPos,doc,0,0).top;let bottom=heightMap.lineAt(to,QueryType.ByPos,doc,0,0).bottom;vpHeight+=bottom-top;return{from:from,to:to,top:top,bottom:bottom,domTop:0,domBottom:0}});this.scale=(7e6-vpHeight)/(heightMap.height-vpHeight);for(let obj of this.viewports){obj.domTop=domBase+(obj.top-base)*this.scale;domBase=obj.domBottom=obj.domTop+(obj.bottom-obj.top);base=obj.bottom}}toDOM(n){for(let i=0,base=0,domBase=0;;i++){let vp=i<this.viewports.length?this.viewports[i]:null;if(!vp||n<vp.top)return domBase+(n-base)*this.scale;if(n<=vp.bottom)return vp.domTop+(n-vp.top);base=vp.bottom;domBase=vp.domBottom}}fromDOM(n){for(let i=0,base=0,domBase=0;;i++){let vp=i<this.viewports.length?this.viewports[i]:null;if(!vp||n<vp.domTop)return base+(n-domBase)/this.scale;if(n<=vp.domBottom)return vp.top+(n-vp.domTop);base=vp.bottom;domBase=vp.domBottom}}}function scaleBlock(block,scaler){if(scaler.scale==1)return block;let bTop=scaler.toDOM(block.top),bBottom=scaler.toDOM(block.bottom);return new BlockInfo(block.from,block.length,bTop,bBottom-bTop,Array.isArray(block.type)?block.type.map(b=>scaleBlock(b,scaler)):block.type)}const theme=Facet.define({combine:strs=>strs.join(" ")});const darkTheme=Facet.define({combine:values=>values.indexOf(true)>-1});const baseThemeID=StyleModule.newName(),baseLightID=StyleModule.newName(),baseDarkID=StyleModule.newName();const lightDarkIDs={"&light":"."+baseLightID,"&dark":"."+baseDarkID};function buildTheme(main,spec,scopes){return new StyleModule(spec,{finish(sel){return/&/.test(sel)?sel.replace(/&\w*/,m=>{if(m=="&")return main;if(!scopes||!scopes[m])throw new RangeError(`Unsupported selector: ${m}`);return scopes[m]}):main+" "+sel}})}const baseTheme$1=buildTheme("."+baseThemeID,{"&.cm-editor":{position:"relative !important",boxSizing:"border-box","&.cm-focused":{outline:"1px dotted #212121"},display:"flex !important",flexDirection:"column"},".cm-scroller":{display:"flex !important",alignItems:"flex-start !important",fontFamily:"monospace",lineHeight:1.4,height:"100%",overflowX:"auto",position:"relative",zIndex:0},".cm-content":{margin:0,flexGrow:2,flexShrink:0,minHeight:"100%",display:"block",whiteSpace:"pre",wordWrap:"normal",boxSizing:"border-box",padding:"4px 0",outline:"none","&[contenteditable=true]":{WebkitUserModify:"read-write-plaintext-only"}},".cm-lineWrapping":{whiteSpace_fallback:"pre-wrap",whiteSpace:"break-spaces",wordBreak:"break-word",overflowWrap:"anywhere",flexShrink:1},"&light .cm-content":{caretColor:"black"},"&dark .cm-content":{caretColor:"white"},".cm-line":{display:"block",padding:"0 2px 0 4px"},".cm-selectionLayer":{zIndex:-1,contain:"size style"},".cm-selectionBackground":{position:"absolute"},"&light .cm-selectionBackground":{background:"#d9d9d9"},"&dark .cm-selectionBackground":{background:"#222"},"&light.cm-focused .cm-selectionBackground":{background:"#d7d4f0"},"&dark.cm-focused .cm-selectionBackground":{background:"#233"},".cm-cursorLayer":{zIndex:100,contain:"size style",pointerEvents:"none"},"&.cm-focused .cm-cursorLayer":{animation:"steps(1) cm-blink 1.2s infinite"},"@keyframes cm-blink":{"0%":{},"50%":{opacity:0},"100%":{}},"@keyframes cm-blink2":{"0%":{},"50%":{opacity:0},"100%":{}},".cm-cursor, .cm-dropCursor":{position:"absolute",borderLeft:"1.2px solid black",marginLeft:"-0.6px",pointerEvents:"none"},".cm-cursor":{display:"none"},"&dark .cm-cursor":{borderLeftColor:"#444"},"&.cm-focused .cm-cursor":{display:"block"},"&light .cm-activeLine":{backgroundColor:"#cceeff44"},"&dark .cm-activeLine":{backgroundColor:"#99eeff33"},"&light .cm-specialChar":{color:"red"},"&dark .cm-specialChar":{color:"#f78"},".cm-gutters":{flexShrink:0,display:"flex",height:"100%",boxSizing:"border-box",left:0,zIndex:200},"&light .cm-gutters":{backgroundColor:"#f5f5f5",color:"#6c6c6c",borderRight:"1px solid #ddd"},"&dark .cm-gutters":{backgroundColor:"#333338",color:"#ccc"},".cm-gutter":{display:"flex !important",flexDirection:"column",flexShrink:0,boxSizing:"border-box",minHeight:"100%",overflow:"hidden"},".cm-gutterElement":{boxSizing:"border-box"},".cm-lineNumbers .cm-gutterElement":{padding:"0 3px 0 5px",minWidth:"20px",textAlign:"right",whiteSpace:"nowrap"},"&light .cm-activeLineGutter":{backgroundColor:"#e2f2ff"},"&dark .cm-activeLineGutter":{backgroundColor:"#222227"},".cm-panels":{boxSizing:"border-box",position:"sticky",left:0,right:0},"&light .cm-panels":{backgroundColor:"#f5f5f5",color:"black"},"&light .cm-panels-top":{borderBottom:"1px solid #ddd"},"&light .cm-panels-bottom":{borderTop:"1px solid #ddd"},"&dark .cm-panels":{backgroundColor:"#333338",color:"white"},".cm-tab":{display:"inline-block",overflow:"hidden",verticalAlign:"bottom"},".cm-widgetBuffer":{verticalAlign:"text-top",height:"1em",width:0,display:"inline"},".cm-placeholder":{color:"#888",display:"inline-block",verticalAlign:"top"},".cm-button":{verticalAlign:"middle",color:"inherit",fontSize:"70%",padding:".2em 1em",borderRadius:"1px"},"&light .cm-button":{backgroundImage:"linear-gradient(#eff1f5, #d9d9df)",border:"1px solid #888","&:active":{backgroundImage:"linear-gradient(#b4b4b4, #d0d3d6)"}},"&dark .cm-button":{backgroundImage:"linear-gradient(#393939, #111)",border:"1px solid #888","&:active":{backgroundImage:"linear-gradient(#111, #333)"}},".cm-textfield":{verticalAlign:"middle",color:"inherit",fontSize:"70%",border:"1px solid silver",padding:".2em .5em"},"&light .cm-textfield":{backgroundColor:"white"},"&dark .cm-textfield":{border:"1px solid #555",backgroundColor:"inherit"}},lightDarkIDs);class DOMChange{constructor(view,start,end,typeOver){this.typeOver=typeOver;this.bounds=null;this.text="";let{impreciseHead:iHead,impreciseAnchor:iAnchor}=view.docView;if(start>-1&&!view.state.readOnly&&(this.bounds=view.docView.domBoundsAround(start,end,0))){let selPoints=iHead||iAnchor?[]:selectionPoints(view);let reader=new DOMReader(selPoints,view.state);reader.readRange(this.bounds.startDOM,this.bounds.endDOM);this.text=reader.text;this.newSel=selectionFromPoints(selPoints,this.bounds.from)}else{let domSel=view.observer.selectionRange;let head=iHead&&iHead.node==domSel.focusNode&&iHead.offset==domSel.focusOffset||!contains(view.contentDOM,domSel.focusNode)?view.state.selection.main.head:view.docView.posFromDOM(domSel.focusNode,domSel.focusOffset);let anchor=iAnchor&&iAnchor.node==domSel.anchorNode&&iAnchor.offset==domSel.anchorOffset||!contains(view.contentDOM,domSel.anchorNode)?view.state.selection.main.anchor:view.docView.posFromDOM(domSel.anchorNode,domSel.anchorOffset);this.newSel=EditorSelection.single(anchor,head)}}}function applyDOMChange(view,domChange){let change;let{newSel}=domChange,sel=view.state.selection.main;if(domChange.bounds){let{from,to}=domChange.bounds;let preferredPos=sel.from,preferredSide=null;if(view.inputState.lastKeyCode===8&&view.inputState.lastKeyTime>Date.now()-100||browser.android&&domChange.text.length<to-from){preferredPos=sel.to;preferredSide="end"}let diff=findDiff(view.state.doc.sliceString(from,to,LineBreakPlaceholder),domChange.text,preferredPos-from,preferredSide);if(diff){if(browser.chrome&&view.inputState.lastKeyCode==13&&diff.toB==diff.from+2&&domChange.text.slice(diff.from,diff.toB)==LineBreakPlaceholder+LineBreakPlaceholder)diff.toB--;change={from:from+diff.from,to:from+diff.toA,insert:Text.of(domChange.text.slice(diff.from,diff.toB).split(LineBreakPlaceholder))}}}else if(newSel&&(!view.hasFocus||!view.state.facet(editable)||newSel.main.eq(sel))){newSel=null}if(!change&&!newSel)return false;if(!change&&domChange.typeOver&&!sel.empty&&newSel&&newSel.main.empty){change={from:sel.from,to:sel.to,insert:view.state.doc.slice(sel.from,sel.to)}}else if(change&&change.from>=sel.from&&change.to<=sel.to&&(change.from!=sel.from||change.to!=sel.to)&&sel.to-sel.from-(change.to-change.from)<=4){change={from:sel.from,to:sel.to,insert:view.state.doc.slice(sel.from,change.from).append(change.insert).append(view.state.doc.slice(change.to,sel.to))}}else if((browser.mac||browser.android)&&change&&change.from==change.to&&change.from==sel.head-1&&/^\. ?$/.test(change.insert.toString())){if(newSel&&change.insert.length==2)newSel=EditorSelection.single(newSel.main.anchor-1,newSel.main.head-1);change={from:sel.from,to:sel.to,insert:Text.of([" "])}}else if(browser.chrome&&change&&change.from==change.to&&change.from==sel.head&&change.insert.toString()=="\n "&&view.lineWrapping){if(newSel)newSel=EditorSelection.single(newSel.main.anchor-1,newSel.main.head-1);change={from:sel.from,to:sel.to,insert:Text.of([" "])}}if(change){let startState=view.state;if(browser.ios&&view.inputState.flushIOSKey(view))return true;if(browser.android&&(change.from==sel.from&&change.to==sel.to&&change.insert.length==1&&change.insert.lines==2&&dispatchKey(view.contentDOM,"Enter",13)||change.from==sel.from-1&&change.to==sel.to&&change.insert.length==0&&dispatchKey(view.contentDOM,"Backspace",8)||change.from==sel.from&&change.to==sel.to+1&&change.insert.length==0&&dispatchKey(view.contentDOM,"Delete",46)))return true;let text=change.insert.toString();if(view.state.facet(inputHandler).some(h=>h(view,change.from,change.to,text)))return true;if(view.inputState.composing>=0)view.inputState.composing++;let tr;if(change.from>=sel.from&&change.to<=sel.to&&change.to-change.from>=(sel.to-sel.from)/3&&(!newSel||newSel.main.empty&&newSel.main.from==change.from+change.insert.length)&&view.inputState.composing<0){let before=sel.from<change.from?startState.sliceDoc(sel.from,change.from):"";let after=sel.to>change.to?startState.sliceDoc(change.to,sel.to):"";tr=startState.replaceSelection(view.state.toText(before+change.insert.sliceString(0,undefined,view.state.lineBreak)+after))}else{let changes=startState.changes(change);let mainSel=newSel&&!startState.selection.main.eq(newSel.main)&&newSel.main.to<=changes.newLength?newSel.main:undefined;if(startState.selection.ranges.length>1&&view.inputState.composing>=0&&change.to<=sel.to&&change.to>=sel.to-10){let replaced=view.state.sliceDoc(change.from,change.to);let compositionRange=compositionSurroundingNode(view)||view.state.doc.lineAt(sel.head);let offset=sel.to-change.to,size=sel.to-sel.from;tr=startState.changeByRange(range=>{if(range.from==sel.from&&range.to==sel.to)return{changes:changes,range:mainSel||range.map(changes)};let to=range.to-offset,from=to-replaced.length;if(range.to-range.from!=size||view.state.sliceDoc(from,to)!=replaced||compositionRange&&range.to>=compositionRange.from&&range.from<=compositionRange.to)return{range:range};let rangeChanges=startState.changes({from:from,to:to,insert:change.insert}),selOff=range.to-sel.to;return{changes:rangeChanges,range:!mainSel?range.map(rangeChanges):EditorSelection.range(Math.max(0,mainSel.anchor+selOff),Math.max(0,mainSel.head+selOff))}})}else{tr={changes:changes,selection:mainSel&&startState.selection.replaceRange(mainSel)}}}let userEvent="input.type";if(view.composing){userEvent+=".compose";if(view.inputState.compositionFirstChange){userEvent+=".start";view.inputState.compositionFirstChange=false}}view.dispatch(tr,{scrollIntoView:true,userEvent:userEvent});return true}else if(newSel&&!newSel.main.eq(sel)){let scrollIntoView=false,userEvent="select";if(view.inputState.lastSelectionTime>Date.now()-50){if(view.inputState.lastSelectionOrigin=="select")scrollIntoView=true;userEvent=view.inputState.lastSelectionOrigin}view.dispatch({selection:newSel,scrollIntoView:scrollIntoView,userEvent:userEvent});return true}else{return false}}function findDiff(a,b,preferredPos,preferredSide){let minLen=Math.min(a.length,b.length);let from=0;while(from<minLen&&a.charCodeAt(from)==b.charCodeAt(from))from++;if(from==minLen&&a.length==b.length)return null;let toA=a.length,toB=b.length;while(toA>0&&toB>0&&a.charCodeAt(toA-1)==b.charCodeAt(toB-1)){toA--;toB--}if(preferredSide=="end"){let adjust=Math.max(0,from-Math.min(toA,toB));preferredPos-=toA+adjust-from}if(toA<from&&a.length<b.length){let move=preferredPos<=from&&preferredPos>=toA?from-preferredPos:0;from-=move;toB=from+(toB-toA);toA=from}else if(toB<from){let move=preferredPos<=from&&preferredPos>=toB?from-preferredPos:0;from-=move;toA=from+(toA-toB);toB=from}return{from:from,toA:toA,toB:toB}}function selectionPoints(view){let result=[];if(view.root.activeElement!=view.contentDOM)return result;let{anchorNode,anchorOffset,focusNode,focusOffset}=view.observer.selectionRange;if(anchorNode){result.push(new DOMPoint(anchorNode,anchorOffset));if(focusNode!=anchorNode||focusOffset!=anchorOffset)result.push(new DOMPoint(focusNode,focusOffset))}return result}function selectionFromPoints(points,base){if(points.length==0)return null;let anchor=points[0].pos,head=points.length==2?points[1].pos:anchor;return anchor>-1&&head>-1?EditorSelection.single(anchor+base,head+base):null}const observeOptions={childList:true,characterData:true,subtree:true,attributes:true,characterDataOldValue:true};const useCharData=browser.ie&&browser.ie_version<=11;class DOMObserver{constructor(view){this.view=view;this.active=false;this.selectionRange=new DOMSelectionState;this.selectionChanged=false;this.delayedFlush=-1;this.resizeTimeout=-1;this.queue=[];this.delayedAndroidKey=null;this.flushingAndroidKey=-1;this.lastChange=0;this.scrollTargets=[];this.intersection=null;this.resize=null;this.intersecting=false;this.gapIntersection=null;this.gaps=[];this.parentCheck=-1;this.dom=view.contentDOM;this.observer=new MutationObserver(mutations=>{for(let mut of mutations)this.queue.push(mut);if((browser.ie&&browser.ie_version<=11||browser.ios&&view.composing)&&mutations.some(m=>m.type=="childList"&&m.removedNodes.length||m.type=="characterData"&&m.oldValue.length>m.target.nodeValue.length))this.flushSoon();else this.flush()});if(useCharData)this.onCharData=event=>{this.queue.push({target:event.target,type:"characterData",oldValue:event.prevValue});this.flushSoon()};this.onSelectionChange=this.onSelectionChange.bind(this);this.onResize=this.onResize.bind(this);this.onPrint=this.onPrint.bind(this);this.onScroll=this.onScroll.bind(this);if(typeof ResizeObserver=="function"){this.resize=new ResizeObserver(()=>{if(this.view.docView.lastUpdate<Date.now()-75)this.onResize()});this.resize.observe(view.scrollDOM)}this.addWindowListeners(this.win=view.win);this.start();if(typeof IntersectionObserver=="function"){this.intersection=new IntersectionObserver(entries=>{if(this.parentCheck<0)this.parentCheck=setTimeout(this.listenForScroll.bind(this),1e3);if(entries.length>0&&entries[entries.length-1].intersectionRatio>0!=this.intersecting){this.intersecting=!this.intersecting;if(this.intersecting!=this.view.inView)this.onScrollChanged(document.createEvent("Event"))}},{});this.intersection.observe(this.dom);this.gapIntersection=new IntersectionObserver(entries=>{if(entries.length>0&&entries[entries.length-1].intersectionRatio>0)this.onScrollChanged(document.createEvent("Event"))},{})}this.listenForScroll();this.readSelectionRange()}onScrollChanged(e){this.view.inputState.runScrollHandlers(this.view,e);if(this.intersecting)this.view.measure()}onScroll(e){if(this.intersecting)this.flush(false);this.onScrollChanged(e)}onResize(){if(this.resizeTimeout<0)this.resizeTimeout=setTimeout(()=>{this.resizeTimeout=-1;this.view.requestMeasure()},50)}onPrint(){this.view.viewState.printing=true;this.view.measure();setTimeout(()=>{this.view.viewState.printing=false;this.view.requestMeasure()},500)}updateGaps(gaps){if(this.gapIntersection&&(gaps.length!=this.gaps.length||this.gaps.some((g,i)=>g!=gaps[i]))){this.gapIntersection.disconnect();for(let gap of gaps)this.gapIntersection.observe(gap);this.gaps=gaps}}onSelectionChange(event){let wasChanged=this.selectionChanged;if(!this.readSelectionRange()||this.delayedAndroidKey)return;let{view}=this,sel=this.selectionRange;if(view.state.facet(editable)?view.root.activeElement!=this.dom:!hasSelection(view.dom,sel))return;let context=sel.anchorNode&&view.docView.nearest(sel.anchorNode);if(context&&context.ignoreEvent(event)){if(!wasChanged)this.selectionChanged=false;return}if((browser.ie&&browser.ie_version<=11||browser.android&&browser.chrome)&&!view.state.selection.main.empty&&sel.focusNode&&isEquivalentPosition(sel.focusNode,sel.focusOffset,sel.anchorNode,sel.anchorOffset))this.flushSoon();else this.flush(false)}readSelectionRange(){let{view}=this;let range=browser.safari&&view.root.nodeType==11&&deepActiveElement(this.dom.ownerDocument)==this.dom&&safariSelectionRangeHack(this.view)||getSelection(view.root);if(!range||this.selectionRange.eq(range))return false;let local=hasSelection(this.dom,range);if(local&&!this.selectionChanged&&view.inputState.lastFocusTime>Date.now()-200&&view.inputState.lastTouchTime<Date.now()-300&&atElementStart(this.dom,range)){this.view.inputState.lastFocusTime=0;view.docView.updateSelection();return false}this.selectionRange.setRange(range);if(local)this.selectionChanged=true;return true}setSelectionRange(anchor,head){this.selectionRange.set(anchor.node,anchor.offset,head.node,head.offset);this.selectionChanged=false}clearSelectionRange(){this.selectionRange.set(null,0,null,0)}listenForScroll(){this.parentCheck=-1;let i=0,changed=null;for(let dom=this.dom;dom;){if(dom.nodeType==1){if(!changed&&i<this.scrollTargets.length&&this.scrollTargets[i]==dom)i++;else if(!changed)changed=this.scrollTargets.slice(0,i);if(changed)changed.push(dom);dom=dom.assignedSlot||dom.parentNode}else if(dom.nodeType==11){dom=dom.host}else{break}}if(i<this.scrollTargets.length&&!changed)changed=this.scrollTargets.slice(0,i);if(changed){for(let dom of this.scrollTargets)dom.removeEventListener("scroll",this.onScroll);for(let dom of this.scrollTargets=changed)dom.addEventListener("scroll",this.onScroll)}}ignore(f){if(!this.active)return f();try{this.stop();return f()}finally{this.start();this.clear()}}start(){if(this.active)return;this.observer.observe(this.dom,observeOptions);if(useCharData)this.dom.addEventListener("DOMCharacterDataModified",this.onCharData);this.active=true}stop(){if(!this.active)return;this.active=false;this.observer.disconnect();if(useCharData)this.dom.removeEventListener("DOMCharacterDataModified",this.onCharData)}clear(){this.processRecords();this.queue.length=0;this.selectionChanged=false}delayAndroidKey(key,keyCode){var _a;if(!this.delayedAndroidKey){let flush=()=>{let key=this.delayedAndroidKey;if(key){this.clearDelayedAndroidKey();if(!this.flush()&&key.force)dispatchKey(this.dom,key.key,key.keyCode)}};this.flushingAndroidKey=this.view.win.requestAnimationFrame(flush)}if(!this.delayedAndroidKey||key=="Enter")this.delayedAndroidKey={key:key,keyCode:keyCode,force:this.lastChange<Date.now()-50||!!((_a=this.delayedAndroidKey)===null||_a===void 0?void 0:_a.force)}}clearDelayedAndroidKey(){this.win.cancelAnimationFrame(this.flushingAndroidKey);this.delayedAndroidKey=null;this.flushingAndroidKey=-1}flushSoon(){if(this.delayedFlush<0)this.delayedFlush=this.view.win.requestAnimationFrame(()=>{this.delayedFlush=-1;this.flush()})}forceFlush(){if(this.delayedFlush>=0){this.view.win.cancelAnimationFrame(this.delayedFlush);this.delayedFlush=-1}this.flush()}processRecords(){let records=this.queue;for(let mut of this.observer.takeRecords())records.push(mut);if(records.length)this.queue=[];let from=-1,to=-1,typeOver=false;for(let record of records){let range=this.readMutation(record);if(!range)continue;if(range.typeOver)typeOver=true;if(from==-1){({from,to}=range)}else{from=Math.min(range.from,from);to=Math.max(range.to,to)}}return{from:from,to:to,typeOver:typeOver}}readChange(){let{from,to,typeOver}=this.processRecords();let newSel=this.selectionChanged&&hasSelection(this.dom,this.selectionRange);if(from<0&&!newSel)return null;if(from>-1)this.lastChange=Date.now();this.view.inputState.lastFocusTime=0;this.selectionChanged=false;return new DOMChange(this.view,from,to,typeOver)}flush(readSelection=true){if(this.delayedFlush>=0||this.delayedAndroidKey)return false;if(readSelection)this.readSelectionRange();let domChange=this.readChange();if(!domChange)return false;let startState=this.view.state;let handled=applyDOMChange(this.view,domChange);if(this.view.state==startState)this.view.update([]);return handled}readMutation(rec){let cView=this.view.docView.nearest(rec.target);if(!cView||cView.ignoreMutation(rec))return null;cView.markDirty(rec.type=="attributes");if(rec.type=="attributes")cView.dirty|=4;if(rec.type=="childList"){let childBefore=findChild(cView,rec.previousSibling||rec.target.previousSibling,-1);let childAfter=findChild(cView,rec.nextSibling||rec.target.nextSibling,1);return{from:childBefore?cView.posAfter(childBefore):cView.posAtStart,to:childAfter?cView.posBefore(childAfter):cView.posAtEnd,typeOver:false}}else if(rec.type=="characterData"){return{from:cView.posAtStart,to:cView.posAtEnd,typeOver:rec.target.nodeValue==rec.oldValue}}else{return null}}setWindow(win){if(win!=this.win){this.removeWindowListeners(this.win);this.win=win;this.addWindowListeners(this.win)}}addWindowListeners(win){win.addEventListener("resize",this.onResize);win.addEventListener("beforeprint",this.onPrint);win.addEventListener("scroll",this.onScroll);win.document.addEventListener("selectionchange",this.onSelectionChange)}removeWindowListeners(win){win.removeEventListener("scroll",this.onScroll);win.removeEventListener("resize",this.onResize);win.removeEventListener("beforeprint",this.onPrint);win.document.removeEventListener("selectionchange",this.onSelectionChange)}destroy(){var _a,_b,_c;this.stop();(_a=this.intersection)===null||_a===void 0?void 0:_a.disconnect();(_b=this.gapIntersection)===null||_b===void 0?void 0:_b.disconnect();(_c=this.resize)===null||_c===void 0?void 0:_c.disconnect();for(let dom of this.scrollTargets)dom.removeEventListener("scroll",this.onScroll);this.removeWindowListeners(this.win);clearTimeout(this.parentCheck);clearTimeout(this.resizeTimeout);this.win.cancelAnimationFrame(this.delayedFlush);this.win.cancelAnimationFrame(this.flushingAndroidKey)}}function findChild(cView,dom,dir){while(dom){let curView=ContentView.get(dom);if(curView&&curView.parent==cView)return curView;let parent=dom.parentNode;dom=parent!=cView.dom?parent:dir>0?dom.nextSibling:dom.previousSibling}return null}function safariSelectionRangeHack(view){let found=null;function read(event){event.preventDefault();event.stopImmediatePropagation();found=event.getTargetRanges()[0]}view.contentDOM.addEventListener("beforeinput",read,true);view.dom.ownerDocument.execCommand("indent");view.contentDOM.removeEventListener("beforeinput",read,true);if(!found)return null;let anchorNode=found.startContainer,anchorOffset=found.startOffset;let focusNode=found.endContainer,focusOffset=found.endOffset;let curAnchor=view.docView.domAtPos(view.state.selection.main.anchor);if(isEquivalentPosition(curAnchor.node,curAnchor.offset,focusNode,focusOffset))[anchorNode,anchorOffset,focusNode,focusOffset]=[focusNode,focusOffset,anchorNode,anchorOffset];return{anchorNode:anchorNode,anchorOffset:anchorOffset,focusNode:focusNode,focusOffset:focusOffset}}class EditorView{constructor(config={}){this.plugins=[];this.pluginMap=new Map;this.editorAttrs={};this.contentAttrs={};this.bidiCache=[];this.destroyed=false;this.updateState=2;this.measureScheduled=-1;this.measureRequests=[];this.contentDOM=document.createElement("div");this.scrollDOM=document.createElement("div");this.scrollDOM.tabIndex=-1;this.scrollDOM.className="cm-scroller";this.scrollDOM.appendChild(this.contentDOM);this.announceDOM=document.createElement("div");this.announceDOM.style.cssText="position: absolute; top: -10000px";this.announceDOM.setAttribute("aria-live","polite");this.dom=document.createElement("div");this.dom.appendChild(this.announceDOM);this.dom.appendChild(this.scrollDOM);this._dispatch=config.dispatch||(tr=>this.update([tr]));this.dispatch=this.dispatch.bind(this);this._root=config.root||getRoot(config.parent)||document;this.viewState=new ViewState(config.state||EditorState.create(config));this.plugins=this.state.facet(viewPlugin).map(spec=>new PluginInstance(spec));for(let plugin of this.plugins)plugin.update(this);this.observer=new DOMObserver(this);this.inputState=new InputState(this);this.inputState.ensureHandlers(this,this.plugins);this.docView=new DocView(this);this.mountStyles();this.updateAttrs();this.updateState=0;this.requestMeasure();if(config.parent)config.parent.appendChild(this.dom)}get state(){return this.viewState.state}get viewport(){return this.viewState.viewport}get visibleRanges(){return this.viewState.visibleRanges}get inView(){return this.viewState.inView}get composing(){return this.inputState.composing>0}get compositionStarted(){return this.inputState.composing>=0}get root(){return this._root}get win(){return this.dom.ownerDocument.defaultView||window}dispatch(...input){this._dispatch(input.length==1&&input[0]instanceof Transaction?input[0]:this.state.update(...input))}update(transactions){if(this.updateState!=0)throw new Error("Calls to EditorView.update are not allowed while an update is in progress");let redrawn=false,attrsChanged=false,update;let state=this.state;for(let tr of transactions){if(tr.startState!=state)throw new RangeError("Trying to update state with a transaction that doesn't start from the previous state.");state=tr.state}if(this.destroyed){this.viewState.state=state;return}let pendingKey=this.observer.delayedAndroidKey,domChange=null;if(pendingKey){this.observer.clearDelayedAndroidKey();domChange=this.observer.readChange();if(domChange&&!this.state.doc.eq(state.doc)||!this.state.selection.eq(state.selection))domChange=null}else{this.observer.clear()}if(state.facet(EditorState.phrases)!=this.state.facet(EditorState.phrases))return this.setState(state);update=ViewUpdate.create(this,state,transactions);let scrollTarget=this.viewState.scrollTarget;try{this.updateState=2;for(let tr of transactions){if(scrollTarget)scrollTarget=scrollTarget.map(tr.changes);if(tr.scrollIntoView){let{main}=tr.state.selection;scrollTarget=new ScrollTarget(main.empty?main:EditorSelection.cursor(main.head,main.head>main.anchor?-1:1))}for(let e of tr.effects)if(e.is(scrollIntoView))scrollTarget=e.value}this.viewState.update(update,scrollTarget);this.bidiCache=CachedOrder.update(this.bidiCache,update.changes);if(!update.empty){this.updatePlugins(update);this.inputState.update(update)}redrawn=this.docView.update(update);if(this.state.facet(styleModule)!=this.styleModules)this.mountStyles();attrsChanged=this.updateAttrs();this.showAnnouncements(transactions);this.docView.updateSelection(redrawn,transactions.some(tr=>tr.isUserEvent("select.pointer")))}finally{this.updateState=0}if(update.startState.facet(theme)!=update.state.facet(theme))this.viewState.mustMeasureContent=true;if(redrawn||attrsChanged||scrollTarget||this.viewState.mustEnforceCursorAssoc||this.viewState.mustMeasureContent)this.requestMeasure();if(!update.empty)for(let listener of this.state.facet(updateListener))listener(update);if(domChange){if(!applyDOMChange(this,domChange)&&pendingKey.force)dispatchKey(this.contentDOM,pendingKey.key,pendingKey.keyCode)}}setState(newState){if(this.updateState!=0)throw new Error("Calls to EditorView.setState are not allowed while an update is in progress");if(this.destroyed){this.viewState.state=newState;return}this.updateState=2;let hadFocus=this.hasFocus;try{for(let plugin of this.plugins)plugin.destroy(this);this.viewState=new ViewState(newState);this.plugins=newState.facet(viewPlugin).map(spec=>new PluginInstance(spec));this.pluginMap.clear();for(let plugin of this.plugins)plugin.update(this);this.docView=new DocView(this);this.inputState.ensureHandlers(this,this.plugins);this.mountStyles();this.updateAttrs();this.bidiCache=[]}finally{this.updateState=0}if(hadFocus)this.focus();this.requestMeasure()}updatePlugins(update){let prevSpecs=update.startState.facet(viewPlugin),specs=update.state.facet(viewPlugin);if(prevSpecs!=specs){let newPlugins=[];for(let spec of specs){let found=prevSpecs.indexOf(spec);if(found<0){newPlugins.push(new PluginInstance(spec))}else{let plugin=this.plugins[found];plugin.mustUpdate=update;newPlugins.push(plugin)}}for(let plugin of this.plugins)if(plugin.mustUpdate!=update)plugin.destroy(this);this.plugins=newPlugins;this.pluginMap.clear();this.inputState.ensureHandlers(this,this.plugins)}else{for(let p of this.plugins)p.mustUpdate=update}for(let i=0;i<this.plugins.length;i++)this.plugins[i].update(this)}measure(flush=true){if(this.destroyed)return;if(this.measureScheduled>-1)cancelAnimationFrame(this.measureScheduled);this.measureScheduled=0;if(flush)this.observer.forceFlush();let updated=null;let{scrollHeight,scrollTop,clientHeight}=this.scrollDOM;let refHeight=scrollTop>scrollHeight-clientHeight-4?scrollHeight:scrollTop;try{for(let i=0;;i++){this.updateState=1;let oldViewport=this.viewport;let refBlock=this.viewState.lineBlockAtHeight(refHeight);let changed=this.viewState.measure(this);if(!changed&&!this.measureRequests.length&&this.viewState.scrollTarget==null)break;if(i>5){console.warn(this.measureRequests.length?"Measure loop restarted more than 5 times":"Viewport failed to stabilize");break}let measuring=[];if(!(changed&4))[this.measureRequests,measuring]=[measuring,this.measureRequests];let measured=measuring.map(m=>{try{return m.read(this)}catch(e){logException(this.state,e);return BadMeasure}});let update=ViewUpdate.create(this,this.state,[]),redrawn=false,scrolled=false;update.flags|=changed;if(!updated)updated=update;else updated.flags|=changed;this.updateState=2;if(!update.empty){this.updatePlugins(update);this.inputState.update(update);this.updateAttrs();redrawn=this.docView.update(update)}for(let i=0;i<measuring.length;i++)if(measured[i]!=BadMeasure){try{let m=measuring[i];if(m.write)m.write(measured[i],this)}catch(e){logException(this.state,e)}}if(this.viewState.editorHeight){if(this.viewState.scrollTarget){this.docView.scrollIntoView(this.viewState.scrollTarget);this.viewState.scrollTarget=null;scrolled=true}else{let diff=this.viewState.lineBlockAt(refBlock.from).top-refBlock.top;if(diff>1||diff<-1){this.scrollDOM.scrollTop+=diff;scrolled=true}}}if(redrawn)this.docView.updateSelection(true);if(this.viewport.from==oldViewport.from&&this.viewport.to==oldViewport.to&&!scrolled&&this.measureRequests.length==0)break}}finally{this.updateState=0;this.measureScheduled=-1}if(updated&&!updated.empty)for(let listener of this.state.facet(updateListener))listener(updated)}get themeClasses(){return baseThemeID+" "+(this.state.facet(darkTheme)?baseDarkID:baseLightID)+" "+this.state.facet(theme)}updateAttrs(){let editorAttrs=attrsFromFacet(this,editorAttributes,{class:"cm-editor"+(this.hasFocus?" cm-focused ":" ")+this.themeClasses});let contentAttrs={spellcheck:"false",autocorrect:"off",autocapitalize:"off",translate:"no",contenteditable:!this.state.facet(editable)?"false":"true",class:"cm-content",style:`${browser.tabSize}: ${this.state.tabSize}`,role:"textbox","aria-multiline":"true"};if(this.state.readOnly)contentAttrs["aria-readonly"]="true";attrsFromFacet(this,contentAttributes,contentAttrs);let changed=this.observer.ignore(()=>{let changedContent=updateAttrs(this.contentDOM,this.contentAttrs,contentAttrs);let changedEditor=updateAttrs(this.dom,this.editorAttrs,editorAttrs);return changedContent||changedEditor});this.editorAttrs=editorAttrs;this.contentAttrs=contentAttrs;return changed}showAnnouncements(trs){let first=true;for(let tr of trs)for(let effect of tr.effects)if(effect.is(EditorView.announce)){if(first)this.announceDOM.textContent="";first=false;let div=this.announceDOM.appendChild(document.createElement("div"));div.textContent=effect.value}}mountStyles(){this.styleModules=this.state.facet(styleModule);StyleModule.mount(this.root,this.styleModules.concat(baseTheme$1).reverse())}readMeasured(){if(this.updateState==2)throw new Error("Reading the editor layout isn't allowed during an update");if(this.updateState==0&&this.measureScheduled>-1)this.measure(false)}requestMeasure(request){if(this.measureScheduled<0)this.measureScheduled=this.win.requestAnimationFrame(()=>this.measure());if(request){if(request.key!=null)for(let i=0;i<this.measureRequests.length;i++){if(this.measureRequests[i].key===request.key){this.measureRequests[i]=request;return}}this.measureRequests.push(request)}}plugin(plugin){let known=this.pluginMap.get(plugin);if(known===undefined||known&&known.spec!=plugin)this.pluginMap.set(plugin,known=this.plugins.find(p=>p.spec==plugin)||null);return known&&known.update(this).value}get documentTop(){return this.contentDOM.getBoundingClientRect().top+this.viewState.paddingTop}get documentPadding(){return{top:this.viewState.paddingTop,bottom:this.viewState.paddingBottom}}elementAtHeight(height){this.readMeasured();return this.viewState.elementAtHeight(height)}lineBlockAtHeight(height){this.readMeasured();return this.viewState.lineBlockAtHeight(height)}get viewportLineBlocks(){return this.viewState.viewportLines}lineBlockAt(pos){return this.viewState.lineBlockAt(pos)}get contentHeight(){return this.viewState.contentHeight}moveByChar(start,forward,by){return skipAtoms(this,start,moveByChar(this,start,forward,by))}moveByGroup(start,forward){return skipAtoms(this,start,moveByChar(this,start,forward,initial=>byGroup(this,start.head,initial)))}moveToLineBoundary(start,forward,includeWrap=true){return moveToLineBoundary(this,start,forward,includeWrap)}moveVertically(start,forward,distance){return skipAtoms(this,start,moveVertically(this,start,forward,distance))}domAtPos(pos){return this.docView.domAtPos(pos)}posAtDOM(node,offset=0){return this.docView.posFromDOM(node,offset)}posAtCoords(coords,precise=true){this.readMeasured();return posAtCoords(this,coords,precise)}coordsAtPos(pos,side=1){this.readMeasured();let rect=this.docView.coordsAt(pos,side);if(!rect||rect.left==rect.right)return rect;let line=this.state.doc.lineAt(pos),order=this.bidiSpans(line);let span=order[BidiSpan.find(order,pos-line.from,-1,side)];return flattenRect(rect,span.dir==Direction.LTR==side>0)}get defaultCharacterWidth(){return this.viewState.heightOracle.charWidth}get defaultLineHeight(){return this.viewState.heightOracle.lineHeight}get textDirection(){return this.viewState.defaultTextDirection}textDirectionAt(pos){let perLine=this.state.facet(perLineTextDirection);if(!perLine||pos<this.viewport.from||pos>this.viewport.to)return this.textDirection;this.readMeasured();return this.docView.textDirectionAt(pos)}get lineWrapping(){return this.viewState.heightOracle.lineWrapping}bidiSpans(line){if(line.length>MaxBidiLine)return trivialOrder(line.length);let dir=this.textDirectionAt(line.from);for(let entry of this.bidiCache)if(entry.from==line.from&&entry.dir==dir)return entry.order;let order=computeOrder(line.text,dir);this.bidiCache.push(new CachedOrder(line.from,line.to,dir,order));return order}get hasFocus(){var _a;return(this.dom.ownerDocument.hasFocus()||browser.safari&&((_a=this.inputState)===null||_a===void 0?void 0:_a.lastContextMenu)>Date.now()-3e4)&&this.root.activeElement==this.contentDOM}focus(){this.observer.ignore(()=>{focusPreventScroll(this.contentDOM);this.docView.updateSelection()})}setRoot(root){if(this._root!=root){this._root=root;this.observer.setWindow((root.nodeType==9?root:root.ownerDocument).defaultView||window);this.mountStyles()}}destroy(){for(let plugin of this.plugins)plugin.destroy(this);this.plugins=[];this.inputState.destroy();this.dom.remove();this.observer.destroy();if(this.measureScheduled>-1)cancelAnimationFrame(this.measureScheduled);this.destroyed=true}static scrollIntoView(pos,options={}){return scrollIntoView.of(new ScrollTarget(typeof pos=="number"?EditorSelection.cursor(pos):pos,options.y,options.x,options.yMargin,options.xMargin))}static domEventHandlers(handlers){return ViewPlugin.define(()=>({}),{eventHandlers:handlers})}static theme(spec,options){let prefix=StyleModule.newName();let result=[theme.of(prefix),styleModule.of(buildTheme(`.${prefix}`,spec))];if(options&&options.dark)result.push(darkTheme.of(true));return result}static baseTheme(spec){return Prec.lowest(styleModule.of(buildTheme("."+baseThemeID,spec,lightDarkIDs)))}static findFromDOM(dom){var _a;let content=dom.querySelector(".cm-content");let cView=content&&ContentView.get(content)||ContentView.get(dom);return((_a=cView===null||cView===void 0?void 0:cView.rootView)===null||_a===void 0?void 0:_a.view)||null}}EditorView.styleModule=styleModule;EditorView.inputHandler=inputHandler;EditorView.perLineTextDirection=perLineTextDirection;EditorView.exceptionSink=exceptionSink;EditorView.updateListener=updateListener;EditorView.editable=editable;EditorView.mouseSelectionStyle=mouseSelectionStyle;EditorView.dragMovesSelection=dragMovesSelection$1;EditorView.clickAddsSelectionRange=clickAddsSelectionRange;EditorView.decorations=decorations;EditorView.atomicRanges=atomicRanges;EditorView.scrollMargins=scrollMargins;EditorView.darkTheme=darkTheme;EditorView.contentAttributes=contentAttributes;EditorView.editorAttributes=editorAttributes;EditorView.lineWrapping=EditorView.contentAttributes.of({class:"cm-lineWrapping"});EditorView.announce=StateEffect.define();const MaxBidiLine=4096;const BadMeasure={};class CachedOrder{constructor(from,to,dir,order){this.from=from;this.to=to;this.dir=dir;this.order=order}static update(cache,changes){if(changes.empty)return cache;let result=[],lastDir=cache.length?cache[cache.length-1].dir:Direction.LTR;for(let i=Math.max(0,cache.length-10);i<cache.length;i++){let entry=cache[i];if(entry.dir==lastDir&&!changes.touchesRange(entry.from,entry.to))result.push(new CachedOrder(changes.mapPos(entry.from,1),changes.mapPos(entry.to,-1),entry.dir,entry.order))}return result}}function attrsFromFacet(view,facet,base){for(let sources=view.state.facet(facet),i=sources.length-1;i>=0;i--){let source=sources[i],value=typeof source=="function"?source(view):source;if(value)combineAttrs(value,base)}return base}const currentPlatform=browser.mac?"mac":browser.windows?"win":browser.linux?"linux":"key";function normalizeKeyName(name,platform){const parts=name.split(/-(?!$)/);let result=parts[parts.length-1];if(result=="Space")result=" ";let alt,ctrl,shift,meta;for(let i=0;i<parts.length-1;++i){const mod=parts[i];if(/^(cmd|meta|m)$/i.test(mod))meta=true;else if(/^a(lt)?$/i.test(mod))alt=true;else if(/^(c|ctrl|control)$/i.test(mod))ctrl=true;else if(/^s(hift)?$/i.test(mod))shift=true;else if(/^mod$/i.test(mod)){if(platform=="mac")meta=true;else ctrl=true}else throw new Error("Unrecognized modifier name: "+mod)}if(alt)result="Alt-"+result;if(ctrl)result="Ctrl-"+result;if(meta)result="Meta-"+result;if(shift)result="Shift-"+result;return result}function modifiers(name,event,shift){if(event.altKey)name="Alt-"+name;if(event.ctrlKey)name="Ctrl-"+name;if(event.metaKey)name="Meta-"+name;if(shift!==false&&event.shiftKey)name="Shift-"+name;return name}const handleKeyEvents=Prec.default(EditorView.domEventHandlers({keydown(event,view){return runHandlers(getKeymap(view.state),event,view,"editor")}}));const keymap=Facet.define({enables:handleKeyEvents});const Keymaps=new WeakMap;function getKeymap(state){let bindings=state.facet(keymap);let map=Keymaps.get(bindings);if(!map)Keymaps.set(bindings,map=buildKeymap(bindings.reduce((a,b)=>a.concat(b),[])));return map}function runScopeHandlers(view,event,scope){return runHandlers(getKeymap(view.state),event,view,scope)}let storedPrefix=null;const PrefixTimeout=4e3;function buildKeymap(bindings,platform=currentPlatform){let bound=Object.create(null);let isPrefix=Object.create(null);let checkPrefix=(name,is)=>{let current=isPrefix[name];if(current==null)isPrefix[name]=is;else if(current!=is)throw new Error("Key binding "+name+" is used both as a regular binding and as a multi-stroke prefix")};let add=(scope,key,command,preventDefault)=>{var _a,_b;let scopeObj=bound[scope]||(bound[scope]=Object.create(null));let parts=key.split(/ (?!$)/).map(k=>normalizeKeyName(k,platform));for(let i=1;i<parts.length;i++){let prefix=parts.slice(0,i).join(" ");checkPrefix(prefix,true);if(!scopeObj[prefix])scopeObj[prefix]={preventDefault:true,run:[view=>{let ourObj=storedPrefix={view:view,prefix:prefix,scope:scope};setTimeout(()=>{if(storedPrefix==ourObj)storedPrefix=null},PrefixTimeout);return true}]}}let full=parts.join(" ");checkPrefix(full,false);let binding=scopeObj[full]||(scopeObj[full]={preventDefault:false,run:((_b=(_a=scopeObj._any)===null||_a===void 0?void 0:_a.run)===null||_b===void 0?void 0:_b.slice())||[]});if(command)binding.run.push(command);if(preventDefault)binding.preventDefault=true};for(let b of bindings){let scopes=b.scope?b.scope.split(" "):["editor"];if(b.any)for(let scope of scopes){let scopeObj=bound[scope]||(bound[scope]=Object.create(null));if(!scopeObj._any)scopeObj._any={preventDefault:false,run:[]};for(let key in scopeObj)scopeObj[key].run.push(b.any)}let name=b[platform]||b.key;if(!name)continue;for(let scope of scopes){add(scope,name,b.run,b.preventDefault);if(b.shift)add(scope,"Shift-"+name,b.shift,b.preventDefault)}}return bound}function runHandlers(map,event,view,scope){let name=keyName(event);let charCode=codePointAt(name,0),isChar=codePointSize(charCode)==name.length&&name!=" ";let prefix="",fallthrough=false;if(storedPrefix&&storedPrefix.view==view&&storedPrefix.scope==scope){prefix=storedPrefix.prefix+" ";if(fallthrough=modifierCodes.indexOf(event.keyCode)<0)storedPrefix=null}let ran=new Set;let runFor=binding=>{if(binding){for(let cmd of binding.run)if(!ran.has(cmd)){ran.add(cmd);if(cmd(view,event))return true}if(binding.preventDefault)fallthrough=true}return false};let scopeObj=map[scope],baseName,shiftName;if(scopeObj){if(runFor(scopeObj[prefix+modifiers(name,event,!isChar)]))return true;if(isChar&&(event.shiftKey||event.altKey||event.metaKey||charCode>127)&&(baseName=base[event.keyCode])&&baseName!=name){if(runFor(scopeObj[prefix+modifiers(baseName,event,true)]))return true;else if(event.shiftKey&&(shiftName=shift[event.keyCode])!=name&&shiftName!=baseName&&runFor(scopeObj[prefix+modifiers(shiftName,event,false)]))return true}else if(isChar&&event.shiftKey){if(runFor(scopeObj[prefix+modifiers(name,event,true)]))return true}if(runFor(scopeObj._any))return true}return fallthrough}const CanHidePrimary=!browser.ios;const selectionConfig=Facet.define({combine(configs){return combineConfig(configs,{cursorBlinkRate:1200,drawRangeCursor:true},{cursorBlinkRate:(a,b)=>Math.min(a,b),drawRangeCursor:(a,b)=>a||b})}});function drawSelection(config={}){return[selectionConfig.of(config),drawSelectionPlugin,hideNativeSelection]}class Piece{constructor(left,top,width,height,className){this.left=left;this.top=top;this.width=width;this.height=height;this.className=className}draw(){let elt=document.createElement("div");elt.className=this.className;this.adjust(elt);return elt}adjust(elt){elt.style.left=this.left+"px";elt.style.top=this.top+"px";if(this.width>=0)elt.style.width=this.width+"px";elt.style.height=this.height+"px"}eq(p){return this.left==p.left&&this.top==p.top&&this.width==p.width&&this.height==p.height&&this.className==p.className}}const drawSelectionPlugin=ViewPlugin.fromClass(class{constructor(view){this.view=view;this.rangePieces=[];this.cursors=[];this.measureReq={read:this.readPos.bind(this),write:this.drawSel.bind(this)};this.selectionLayer=view.scrollDOM.appendChild(document.createElement("div"));this.selectionLayer.className="cm-selectionLayer";this.selectionLayer.setAttribute("aria-hidden","true");this.cursorLayer=view.scrollDOM.appendChild(document.createElement("div"));this.cursorLayer.className="cm-cursorLayer";this.cursorLayer.setAttribute("aria-hidden","true");view.requestMeasure(this.measureReq);this.setBlinkRate()}setBlinkRate(){this.cursorLayer.style.animationDuration=this.view.state.facet(selectionConfig).cursorBlinkRate+"ms"}update(update){let confChanged=update.startState.facet(selectionConfig)!=update.state.facet(selectionConfig);if(confChanged||update.selectionSet||update.geometryChanged||update.viewportChanged)this.view.requestMeasure(this.measureReq);if(update.transactions.some(tr=>tr.scrollIntoView))this.cursorLayer.style.animationName=this.cursorLayer.style.animationName=="cm-blink"?"cm-blink2":"cm-blink";if(confChanged)this.setBlinkRate()}readPos(){let{state}=this.view,conf=state.facet(selectionConfig);let rangePieces=state.selection.ranges.map(r=>r.empty?[]:measureRange(this.view,r)).reduce((a,b)=>a.concat(b));let cursors=[];for(let r of state.selection.ranges){let prim=r==state.selection.main;if(r.empty?!prim||CanHidePrimary:conf.drawRangeCursor){let piece=measureCursor(this.view,r,prim);if(piece)cursors.push(piece)}}return{rangePieces:rangePieces,cursors:cursors}}drawSel({rangePieces,cursors}){if(rangePieces.length!=this.rangePieces.length||rangePieces.some((p,i)=>!p.eq(this.rangePieces[i]))){this.selectionLayer.textContent="";for(let p of rangePieces)this.selectionLayer.appendChild(p.draw());this.rangePieces=rangePieces}if(cursors.length!=this.cursors.length||cursors.some((c,i)=>!c.eq(this.cursors[i]))){let oldCursors=this.cursorLayer.children;if(oldCursors.length!==cursors.length){this.cursorLayer.textContent="";for(const c of cursors)this.cursorLayer.appendChild(c.draw())}else{cursors.forEach((c,idx)=>c.adjust(oldCursors[idx]))}this.cursors=cursors}}destroy(){this.selectionLayer.remove();this.cursorLayer.remove()}});const themeSpec={".cm-line":{"& ::selection":{backgroundColor:"transparent !important"},"&::selection":{backgroundColor:"transparent !important"}}};if(CanHidePrimary)themeSpec[".cm-line"].caretColor="transparent !important";const hideNativeSelection=Prec.highest(EditorView.theme(themeSpec));function getBase(view){let rect=view.scrollDOM.getBoundingClientRect();let left=view.textDirection==Direction.LTR?rect.left:rect.right-view.scrollDOM.clientWidth;return{left:left-view.scrollDOM.scrollLeft,top:rect.top-view.scrollDOM.scrollTop}}function wrappedLine(view,pos,inside){let range=EditorSelection.cursor(pos);return{from:Math.max(inside.from,view.moveToLineBoundary(range,false,true).from),to:Math.min(inside.to,view.moveToLineBoundary(range,true,true).from),type:BlockType.Text}}function blockAt(view,pos){let line=view.lineBlockAt(pos);if(Array.isArray(line.type))for(let l of line.type){if(l.to>pos||l.to==pos&&(l.to==line.to||l.type==BlockType.Text))return l}return line}function measureRange(view,range){if(range.to<=view.viewport.from||range.from>=view.viewport.to)return[];let from=Math.max(range.from,view.viewport.from),to=Math.min(range.to,view.viewport.to);let ltr=view.textDirection==Direction.LTR;let content=view.contentDOM,contentRect=content.getBoundingClientRect(),base=getBase(view);let lineStyle=window.getComputedStyle(content.firstChild);let leftSide=contentRect.left+parseInt(lineStyle.paddingLeft)+Math.min(0,parseInt(lineStyle.textIndent));let rightSide=contentRect.right-parseInt(lineStyle.paddingRight);let startBlock=blockAt(view,from),endBlock=blockAt(view,to);let visualStart=startBlock.type==BlockType.Text?startBlock:null;let visualEnd=endBlock.type==BlockType.Text?endBlock:null;if(view.lineWrapping){if(visualStart)visualStart=wrappedLine(view,from,visualStart);if(visualEnd)visualEnd=wrappedLine(view,to,visualEnd)}if(visualStart&&visualEnd&&visualStart.from==visualEnd.from){return pieces(drawForLine(range.from,range.to,visualStart))}else{let top=visualStart?drawForLine(range.from,null,visualStart):drawForWidget(startBlock,false);let bottom=visualEnd?drawForLine(null,range.to,visualEnd):drawForWidget(endBlock,true);let between=[];if((visualStart||startBlock).to<(visualEnd||endBlock).from-1)between.push(piece(leftSide,top.bottom,rightSide,bottom.top));else if(top.bottom<bottom.top&&view.elementAtHeight((top.bottom+bottom.top)/2).type==BlockType.Text)top.bottom=bottom.top=(top.bottom+bottom.top)/2;return pieces(top).concat(between).concat(pieces(bottom))}function piece(left,top,right,bottom){return new Piece(left-base.left,top-base.top-.01,right-left,bottom-top+.01,"cm-selectionBackground")}function pieces({top,bottom,horizontal}){let pieces=[];for(let i=0;i<horizontal.length;i+=2)pieces.push(piece(horizontal[i],top,horizontal[i+1],bottom));return pieces}function drawForLine(from,to,line){let top=1e9,bottom=-1e9,horizontal=[];function addSpan(from,fromOpen,to,toOpen,dir){let fromCoords=view.coordsAtPos(from,from==line.to?-2:2);let toCoords=view.coordsAtPos(to,to==line.from?2:-2);top=Math.min(fromCoords.top,toCoords.top,top);bottom=Math.max(fromCoords.bottom,toCoords.bottom,bottom);if(dir==Direction.LTR)horizontal.push(ltr&&fromOpen?leftSide:fromCoords.left,ltr&&toOpen?rightSide:toCoords.right);else horizontal.push(!ltr&&toOpen?leftSide:toCoords.left,!ltr&&fromOpen?rightSide:fromCoords.right)}let start=from!==null&&from!==void 0?from:line.from,end=to!==null&&to!==void 0?to:line.to;for(let r of view.visibleRanges)if(r.to>start&&r.from<end){for(let pos=Math.max(r.from,start),endPos=Math.min(r.to,end);;){let docLine=view.state.doc.lineAt(pos);for(let span of view.bidiSpans(docLine)){let spanFrom=span.from+docLine.from,spanTo=span.to+docLine.from;if(spanFrom>=endPos)break;if(spanTo>pos)addSpan(Math.max(spanFrom,pos),from==null&&spanFrom<=start,Math.min(spanTo,endPos),to==null&&spanTo>=end,span.dir)}pos=docLine.to+1;if(pos>=endPos)break}}if(horizontal.length==0)addSpan(start,from==null,end,to==null,view.textDirection);return{top:top,bottom:bottom,horizontal:horizontal}}function drawForWidget(block,top){let y=contentRect.top+(top?block.top:block.bottom);return{top:y,bottom:y,horizontal:[]}}}function measureCursor(view,cursor,primary){let pos=view.coordsAtPos(cursor.head,cursor.assoc||1);if(!pos)return null;let base=getBase(view);return new Piece(pos.left-base.left,pos.top-base.top,-1,pos.bottom-pos.top,primary?"cm-cursor cm-cursor-primary":"cm-cursor cm-cursor-secondary")}const setDropCursorPos=StateEffect.define({map(pos,mapping){return pos==null?null:mapping.mapPos(pos)}});const dropCursorPos=StateField.define({create(){return null},update(pos,tr){if(pos!=null)pos=tr.changes.mapPos(pos);return tr.effects.reduce((pos,e)=>e.is(setDropCursorPos)?e.value:pos,pos)}});const drawDropCursor=ViewPlugin.fromClass(class{constructor(view){this.view=view;this.cursor=null;this.measureReq={read:this.readPos.bind(this),write:this.drawCursor.bind(this)}}update(update){var _a;let cursorPos=update.state.field(dropCursorPos);if(cursorPos==null){if(this.cursor!=null){(_a=this.cursor)===null||_a===void 0?void 0:_a.remove();this.cursor=null}}else{if(!this.cursor){this.cursor=this.view.scrollDOM.appendChild(document.createElement("div"));this.cursor.className="cm-dropCursor"}if(update.startState.field(dropCursorPos)!=cursorPos||update.docChanged||update.geometryChanged)this.view.requestMeasure(this.measureReq)}}readPos(){let pos=this.view.state.field(dropCursorPos);let rect=pos!=null&&this.view.coordsAtPos(pos);if(!rect)return null;let outer=this.view.scrollDOM.getBoundingClientRect();return{left:rect.left-outer.left+this.view.scrollDOM.scrollLeft,top:rect.top-outer.top+this.view.scrollDOM.scrollTop,height:rect.bottom-rect.top}}drawCursor(pos){if(this.cursor){if(pos){this.cursor.style.left=pos.left+"px";this.cursor.style.top=pos.top+"px";this.cursor.style.height=pos.height+"px"}else{this.cursor.style.left="-100000px"}}}destroy(){if(this.cursor)this.cursor.remove()}setDropPos(pos){if(this.view.state.field(dropCursorPos)!=pos)this.view.dispatch({effects:setDropCursorPos.of(pos)})}},{eventHandlers:{dragover(event){this.setDropPos(this.view.posAtCoords({x:event.clientX,y:event.clientY}))},dragleave(event){if(event.target==this.view.contentDOM||!this.view.contentDOM.contains(event.relatedTarget))this.setDropPos(null)},dragend(){this.setDropPos(null)},drop(){this.setDropPos(null)}}});function dropCursor(){return[dropCursorPos,drawDropCursor]}function iterMatches(doc,re,from,to,f){re.lastIndex=0;for(let cursor=doc.iterRange(from,to),pos=from,m;!cursor.next().done;pos+=cursor.value.length){if(!cursor.lineBreak)while(m=re.exec(cursor.value))f(pos+m.index,m)}}function matchRanges(view,maxLength){let visible=view.visibleRanges;if(visible.length==1&&visible[0].from==view.viewport.from&&visible[0].to==view.viewport.to)return visible;let result=[];for(let{from,to}of visible){from=Math.max(view.state.doc.lineAt(from).from,from-maxLength);to=Math.min(view.state.doc.lineAt(to).to,to+maxLength);if(result.length&&result[result.length-1].to>=from)result[result.length-1].to=to;else result.push({from:from,to:to})}return result}class MatchDecorator{constructor(config){const{regexp,decoration,decorate,boundary,maxLength=1e3}=config;if(!regexp.global)throw new RangeError("The regular expression given to MatchDecorator should have its 'g' flag set");this.regexp=regexp;if(decorate){this.addMatch=(match,view,from,add)=>decorate(add,from,from+match[0].length,match,view)}else if(typeof decoration=="function"){this.addMatch=(match,view,from,add)=>{let deco=decoration(match,view,from);if(deco)add(from,from+match[0].length,deco)}}else if(decoration){this.addMatch=(match,_view,from,add)=>add(from,from+match[0].length,decoration)}else{throw new RangeError("Either 'decorate' or 'decoration' should be provided to MatchDecorator")}this.boundary=boundary;this.maxLength=maxLength}createDeco(view){let build=new RangeSetBuilder,add=build.add.bind(build);for(let{from,to}of matchRanges(view,this.maxLength))iterMatches(view.state.doc,this.regexp,from,to,(from,m)=>this.addMatch(m,view,from,add));return build.finish()}updateDeco(update,deco){let changeFrom=1e9,changeTo=-1;if(update.docChanged)update.changes.iterChanges((_f,_t,from,to)=>{if(to>update.view.viewport.from&&from<update.view.viewport.to){changeFrom=Math.min(from,changeFrom);changeTo=Math.max(to,changeTo)}});if(update.viewportChanged||changeTo-changeFrom>1e3)return this.createDeco(update.view);if(changeTo>-1)return this.updateRange(update.view,deco.map(update.changes),changeFrom,changeTo);return deco}updateRange(view,deco,updateFrom,updateTo){for(let r of view.visibleRanges){let from=Math.max(r.from,updateFrom),to=Math.min(r.to,updateTo);if(to>from){let fromLine=view.state.doc.lineAt(from),toLine=fromLine.to<to?view.state.doc.lineAt(to):fromLine;let start=Math.max(r.from,fromLine.from),end=Math.min(r.to,toLine.to);if(this.boundary){for(;from>fromLine.from;from--)if(this.boundary.test(fromLine.text[from-1-fromLine.from])){start=from;break}for(;to<toLine.to;to++)if(this.boundary.test(toLine.text[to-toLine.from])){end=to;break}}let ranges=[],m;let add=(from,to,deco)=>ranges.push(deco.range(from,to));if(fromLine==toLine){this.regexp.lastIndex=start-fromLine.from;while((m=this.regexp.exec(fromLine.text))&&m.index<end-fromLine.from)this.addMatch(m,view,m.index+fromLine.from,add)}else{iterMatches(view.state.doc,this.regexp,start,end,(from,m)=>this.addMatch(m,view,from,add))}deco=deco.update({filterFrom:start,filterTo:end,filter:(from,to)=>from<start||to>end,add:ranges})}}return deco}}const UnicodeRegexpSupport=/x/.unicode!=null?"gu":"g";const Specials=new RegExp("[\0-\b\n- -\u2028\u2029\ufeff-]",UnicodeRegexpSupport);const Names={0:"null",7:"bell",8:"backspace",10:"newline",11:"vertical tab",13:"carriage return",27:"escape",8203:"zero width space",8204:"zero width non-joiner",8205:"zero width joiner",8206:"left-to-right mark",8207:"right-to-left mark",8232:"line separator",8237:"left-to-right override",8238:"right-to-left override",8294:"left-to-right isolate",8295:"right-to-left isolate",8297:"pop directional isolate",8233:"paragraph separator",65279:"zero width no-break space",65532:"object replacement"};let _supportsTabSize=null;function supportsTabSize(){var _a;if(_supportsTabSize==null&&typeof document!="undefined"&&document.body){let styles=document.body.style;_supportsTabSize=((_a=styles.tabSize)!==null&&_a!==void 0?_a:styles.MozTabSize)!=null}return _supportsTabSize||false}const specialCharConfig=Facet.define({combine(configs){let config=combineConfig(configs,{render:null,specialChars:Specials,addSpecialChars:null});if(config.replaceTabs=!supportsTabSize())config.specialChars=new RegExp("\t|"+config.specialChars.source,UnicodeRegexpSupport);if(config.addSpecialChars)config.specialChars=new RegExp(config.specialChars.source+"|"+config.addSpecialChars.source,UnicodeRegexpSupport);return config}});function highlightSpecialChars(config={}){return[specialCharConfig.of(config),specialCharPlugin()]}let _plugin=null;function specialCharPlugin(){return _plugin||(_plugin=ViewPlugin.fromClass(class{constructor(view){this.view=view;this.decorations=Decoration.none;this.decorationCache=Object.create(null);this.decorator=this.makeDecorator(view.state.facet(specialCharConfig));this.decorations=this.decorator.createDeco(view)}makeDecorator(conf){return new MatchDecorator({regexp:conf.specialChars,decoration:(m,view,pos)=>{let{doc}=view.state;let code=codePointAt(m[0],0);if(code==9){let line=doc.lineAt(pos);let size=view.state.tabSize,col=countColumn(line.text,size,pos-line.from);return Decoration.replace({widget:new TabWidget((size-col%size)*this.view.defaultCharacterWidth)})}return this.decorationCache[code]||(this.decorationCache[code]=Decoration.replace({widget:new SpecialCharWidget(conf,code)}))},boundary:conf.replaceTabs?undefined:/[^]/})}update(update){let conf=update.state.facet(specialCharConfig);if(update.startState.facet(specialCharConfig)!=conf){this.decorator=this.makeDecorator(conf);this.decorations=this.decorator.createDeco(update.view)}else{this.decorations=this.decorator.updateDeco(update,this.decorations)}}},{decorations:v=>v.decorations}))}const DefaultPlaceholder="•";function placeholder$1(code){if(code>=32)return DefaultPlaceholder;if(code==10)return"";return String.fromCharCode(9216+code)}class SpecialCharWidget extends WidgetType{constructor(options,code){super();this.options=options;this.code=code}eq(other){return other.code==this.code}toDOM(view){let ph=placeholder$1(this.code);let desc=view.state.phrase("Control character")+" "+(Names[this.code]||"0x"+this.code.toString(16));let custom=this.options.render&&this.options.render(this.code,desc,ph);if(custom)return custom;let span=document.createElement("span");span.textContent=ph;span.title=desc;span.setAttribute("aria-label",desc);span.className="cm-specialChar";return span}ignoreEvent(){return false}}class TabWidget extends WidgetType{constructor(width){super();this.width=width}eq(other){return other.width==this.width}toDOM(){let span=document.createElement("span");span.textContent="\t";span.className="cm-tab";span.style.width=this.width+"px";return span}ignoreEvent(){return false}}const plugin=ViewPlugin.fromClass(class{constructor(){this.height=1e3;this.attrs={style:"padding-bottom: 1000px"}}update(update){let{view}=update;let height=view.viewState.editorHeight-view.defaultLineHeight-view.documentPadding.top-.5;if(height!=this.height){this.height=height;this.attrs={style:`padding-bottom: ${height}px`}}}});function scrollPastEnd(){return[plugin,contentAttributes.of(view=>{var _a;return((_a=view.plugin(plugin))===null||_a===void 0?void 0:_a.attrs)||null})]}function highlightActiveLine(){return activeLineHighlighter}const lineDeco=Decoration.line({class:"cm-activeLine"});const activeLineHighlighter=ViewPlugin.fromClass(class{constructor(view){this.decorations=this.getDeco(view)}update(update){if(update.docChanged||update.selectionSet)this.decorations=this.getDeco(update.view)}getDeco(view){let lastLineStart=-1,deco=[];for(let r of view.state.selection.ranges){let line=view.lineBlockAt(r.head);if(line.from>lastLineStart){deco.push(lineDeco.range(line.from));lastLineStart=line.from}}return Decoration.set(deco)}},{decorations:v=>v.decorations});class Placeholder extends WidgetType{constructor(content){super();this.content=content}toDOM(){let wrap=document.createElement("span");wrap.className="cm-placeholder";wrap.style.pointerEvents="none";wrap.appendChild(typeof this.content=="string"?document.createTextNode(this.content):this.content);if(typeof this.content=="string")wrap.setAttribute("aria-label","placeholder "+this.content);else wrap.setAttribute("aria-hidden","true");return wrap}ignoreEvent(){return false}}function placeholder(content){return ViewPlugin.fromClass(class{constructor(view){this.view=view;this.placeholder=Decoration.set([Decoration.widget({widget:new Placeholder(content),side:1}).range(0)])}get decorations(){return this.view.state.doc.length?Decoration.none:this.placeholder}},{decorations:v=>v.decorations})}const MaxOff=2e3;function rectangleFor(state,a,b){let startLine=Math.min(a.line,b.line),endLine=Math.max(a.line,b.line);let ranges=[];if(a.off>MaxOff||b.off>MaxOff||a.col<0||b.col<0){let startOff=Math.min(a.off,b.off),endOff=Math.max(a.off,b.off);for(let i=startLine;i<=endLine;i++){let line=state.doc.line(i);if(line.length<=endOff)ranges.push(EditorSelection.range(line.from+startOff,line.to+endOff))}}else{let startCol=Math.min(a.col,b.col),endCol=Math.max(a.col,b.col);for(let i=startLine;i<=endLine;i++){let line=state.doc.line(i);let start=findColumn(line.text,startCol,state.tabSize,true);if(start<0){ranges.push(EditorSelection.cursor(line.to))}else{let end=findColumn(line.text,endCol,state.tabSize);ranges.push(EditorSelection.range(line.from+start,line.from+end))}}}return ranges}function absoluteColumn(view,x){let ref=view.coordsAtPos(view.viewport.from);return ref?Math.round(Math.abs((ref.left-x)/view.defaultCharacterWidth)):-1}function getPos(view,event){let offset=view.posAtCoords({x:event.clientX,y:event.clientY},false);let line=view.state.doc.lineAt(offset),off=offset-line.from;let col=off>MaxOff?-1:off==line.length?absoluteColumn(view,event.clientX):countColumn(line.text,view.state.tabSize,offset-line.from);return{line:line.number,col:col,off:off}}function rectangleSelectionStyle(view,event){let start=getPos(view,event),startSel=view.state.selection;if(!start)return null;return{update(update){if(update.docChanged){let newStart=update.changes.mapPos(update.startState.doc.line(start.line).from);let newLine=update.state.doc.lineAt(newStart);start={line:newLine.number,col:start.col,off:Math.min(start.off,newLine.length)};startSel=startSel.map(update.changes)}},get(event,_extend,multiple){let cur=getPos(view,event);if(!cur)return startSel;let ranges=rectangleFor(view.state,start,cur);if(!ranges.length)return startSel;if(multiple)return EditorSelection.create(ranges.concat(startSel.ranges));else return EditorSelection.create(ranges)}}}function rectangularSelection(options){let filter=(options===null||options===void 0?void 0:options.eventFilter)||(e=>e.altKey&&e.button==0);return EditorView.mouseSelectionStyle.of((view,event)=>filter(event)?rectangleSelectionStyle(view,event):null)}const keys={Alt:[18,e=>e.altKey],Control:[17,e=>e.ctrlKey],Shift:[16,e=>e.shiftKey],Meta:[91,e=>e.metaKey]};const showCrosshair={style:"cursor: crosshair"};function crosshairCursor(options={}){let[code,getter]=keys[options.key||"Alt"];let plugin=ViewPlugin.fromClass(class{constructor(view){this.view=view;this.isDown=false}set(isDown){if(this.isDown!=isDown){this.isDown=isDown;this.view.update([])}}},{eventHandlers:{keydown(e){this.set(e.keyCode==code||getter(e))},keyup(e){if(e.keyCode==code||!getter(e))this.set(false)}}});return[plugin,EditorView.contentAttributes.of(view=>{var _a;return((_a=view.plugin(plugin))===null||_a===void 0?void 0:_a.isDown)?showCrosshair:null})]}const Outside="-10000px";class TooltipViewManager{constructor(view,facet,createTooltipView){this.facet=facet;this.createTooltipView=createTooltipView;this.input=view.state.facet(facet);this.tooltips=this.input.filter(t=>t);this.tooltipViews=this.tooltips.map(createTooltipView)}update(update){var _a;let input=update.state.facet(this.facet);let tooltips=input.filter(x=>x);if(input===this.input){for(let t of this.tooltipViews)if(t.update)t.update(update);return false}let tooltipViews=[];for(let i=0;i<tooltips.length;i++){let tip=tooltips[i],known=-1;if(!tip)continue;for(let i=0;i<this.tooltips.length;i++){let other=this.tooltips[i];if(other&&other.create==tip.create)known=i}if(known<0){tooltipViews[i]=this.createTooltipView(tip)}else{let tooltipView=tooltipViews[i]=this.tooltipViews[known];if(tooltipView.update)tooltipView.update(update)}}for(let t of this.tooltipViews)if(tooltipViews.indexOf(t)<0){t.dom.remove();(_a=t.destroy)===null||_a===void 0?void 0:_a.call(t)}this.input=input;this.tooltips=tooltips;this.tooltipViews=tooltipViews;return true}}function tooltips(config={}){return tooltipConfig.of(config)}function windowSpace(view){let{win}=view;return{top:0,left:0,bottom:win.innerHeight,right:win.innerWidth}}const tooltipConfig=Facet.define({combine:values=>{var _a,_b,_c;return{position:browser.ios?"absolute":((_a=values.find(conf=>conf.position))===null||_a===void 0?void 0:_a.position)||"fixed",parent:((_b=values.find(conf=>conf.parent))===null||_b===void 0?void 0:_b.parent)||null,tooltipSpace:((_c=values.find(conf=>conf.tooltipSpace))===null||_c===void 0?void 0:_c.tooltipSpace)||windowSpace}}});const tooltipPlugin=ViewPlugin.fromClass(class{constructor(view){this.view=view;this.inView=true;this.lastTransaction=0;this.measureTimeout=-1;let config=view.state.facet(tooltipConfig);this.position=config.position;this.parent=config.parent;this.classes=view.themeClasses;this.createContainer();this.measureReq={read:this.readMeasure.bind(this),write:this.writeMeasure.bind(this),key:this};this.manager=new TooltipViewManager(view,showTooltip,t=>this.createTooltip(t));this.intersectionObserver=typeof IntersectionObserver=="function"?new IntersectionObserver(entries=>{if(Date.now()>this.lastTransaction-50&&entries.length>0&&entries[entries.length-1].intersectionRatio<1)this.measureSoon()},{threshold:[1]}):null;this.observeIntersection();view.win.addEventListener("resize",this.measureSoon=this.measureSoon.bind(this));this.maybeMeasure()}createContainer(){if(this.parent){this.container=document.createElement("div");this.container.style.position="relative";this.container.className=this.view.themeClasses;this.parent.appendChild(this.container)}else{this.container=this.view.dom}}observeIntersection(){if(this.intersectionObserver){this.intersectionObserver.disconnect();for(let tooltip of this.manager.tooltipViews)this.intersectionObserver.observe(tooltip.dom)}}measureSoon(){if(this.measureTimeout<0)this.measureTimeout=setTimeout(()=>{this.measureTimeout=-1;this.maybeMeasure()},50)}update(update){if(update.transactions.length)this.lastTransaction=Date.now();let updated=this.manager.update(update);if(updated)this.observeIntersection();let shouldMeasure=updated||update.geometryChanged;let newConfig=update.state.facet(tooltipConfig);if(newConfig.position!=this.position){this.position=newConfig.position;for(let t of this.manager.tooltipViews)t.dom.style.position=this.position;shouldMeasure=true}if(newConfig.parent!=this.parent){if(this.parent)this.container.remove();this.parent=newConfig.parent;this.createContainer();for(let t of this.manager.tooltipViews)this.container.appendChild(t.dom);shouldMeasure=true}else if(this.parent&&this.view.themeClasses!=this.classes){this.classes=this.container.className=this.view.themeClasses}if(shouldMeasure)this.maybeMeasure()}createTooltip(tooltip){let tooltipView=tooltip.create(this.view);tooltipView.dom.classList.add("cm-tooltip");if(tooltip.arrow&&!tooltipView.dom.querySelector(".cm-tooltip > .cm-tooltip-arrow")){let arrow=document.createElement("div");arrow.className="cm-tooltip-arrow";tooltipView.dom.appendChild(arrow)}tooltipView.dom.style.position=this.position;tooltipView.dom.style.top=Outside;this.container.appendChild(tooltipView.dom);if(tooltipView.mount)tooltipView.mount(this.view);return tooltipView}destroy(){var _a,_b;this.view.win.removeEventListener("resize",this.measureSoon);for(let tooltipView of this.manager.tooltipViews){tooltipView.dom.remove();(_a=tooltipView.destroy)===null||_a===void 0?void 0:_a.call(tooltipView)}(_b=this.intersectionObserver)===null||_b===void 0?void 0:_b.disconnect();clearTimeout(this.measureTimeout)}readMeasure(){let editor=this.view.dom.getBoundingClientRect();return{editor:editor,parent:this.parent?this.container.getBoundingClientRect():editor,pos:this.manager.tooltips.map((t,i)=>{let tv=this.manager.tooltipViews[i];return tv.getCoords?tv.getCoords(t.pos):this.view.coordsAtPos(t.pos)}),size:this.manager.tooltipViews.map(({dom})=>dom.getBoundingClientRect()),space:this.view.state.facet(tooltipConfig).tooltipSpace(this.view)}}writeMeasure(measured){let{editor,space}=measured;let others=[];for(let i=0;i<this.manager.tooltips.length;i++){let tooltip=this.manager.tooltips[i],tView=this.manager.tooltipViews[i],{dom}=tView;let pos=measured.pos[i],size=measured.size[i];if(!pos||pos.bottom<=Math.max(editor.top,space.top)||pos.top>=Math.min(editor.bottom,space.bottom)||pos.right<Math.max(editor.left,space.left)-.1||pos.left>Math.min(editor.right,space.right)+.1){dom.style.top=Outside;continue}let arrow=tooltip.arrow?tView.dom.querySelector(".cm-tooltip-arrow"):null;let arrowHeight=arrow?7:0;let width=size.right-size.left,height=size.bottom-size.top;let offset=tView.offset||noOffset,ltr=this.view.textDirection==Direction.LTR;let left=size.width>space.right-space.left?ltr?space.left:space.right-size.width:ltr?Math.min(pos.left-(arrow?14:0)+offset.x,space.right-width):Math.max(space.left,pos.left-width+(arrow?14:0)-offset.x);let above=!!tooltip.above;if(!tooltip.strictSide&&(above?pos.top-(size.bottom-size.top)-offset.y<space.top:pos.bottom+(size.bottom-size.top)+offset.y>space.bottom)&&above==space.bottom-pos.bottom>pos.top-space.top)above=!above;let top=above?pos.top-height-arrowHeight-offset.y:pos.bottom+arrowHeight+offset.y;let right=left+width;if(tView.overlap!==true)for(let r of others)if(r.left<right&&r.right>left&&r.top<top+height&&r.bottom>top)top=above?r.top-height-2-arrowHeight:r.bottom+arrowHeight+2;if(this.position=="absolute"){dom.style.top=top-measured.parent.top+"px";dom.style.left=left-measured.parent.left+"px"}else{dom.style.top=top+"px";dom.style.left=left+"px"}if(arrow)arrow.style.left=`${pos.left+(ltr?offset.x:-offset.x)-(left+14-7)}px`;if(tView.overlap!==true)others.push({left:left,top:top,right:right,bottom:top+height});dom.classList.toggle("cm-tooltip-above",above);dom.classList.toggle("cm-tooltip-below",!above);if(tView.positioned)tView.positioned()}}maybeMeasure(){if(this.manager.tooltips.length){if(this.view.inView)this.view.requestMeasure(this.measureReq);if(this.inView!=this.view.inView){this.inView=this.view.inView;if(!this.inView)for(let tv of this.manager.tooltipViews)tv.dom.style.top=Outside}}}},{eventHandlers:{scroll(){this.maybeMeasure()}}});const baseTheme=EditorView.baseTheme({".cm-tooltip":{zIndex:100},"&light .cm-tooltip":{border:"1px solid #bbb",backgroundColor:"#f5f5f5"},"&light .cm-tooltip-section:not(:first-child)":{borderTop:"1px solid #bbb"},"&dark .cm-tooltip":{backgroundColor:"#333338",color:"white"},".cm-tooltip-arrow":{height:`${7}px`,width:`${7*2}px`,position:"absolute",zIndex:-1,overflow:"hidden","&:before, &:after":{content:"''",position:"absolute",width:0,height:0,borderLeft:`${7}px solid transparent`,borderRight:`${7}px solid transparent`},".cm-tooltip-above &":{bottom:`-${7}px`,"&:before":{borderTop:`${7}px solid #bbb`},"&:after":{borderTop:`${7}px solid #f5f5f5`,bottom:"1px"}},".cm-tooltip-below &":{top:`-${7}px`,"&:before":{borderBottom:`${7}px solid #bbb`},"&:after":{borderBottom:`${7}px solid #f5f5f5`,top:"1px"}}},"&dark .cm-tooltip .cm-tooltip-arrow":{"&:before":{borderTopColor:"#333338",borderBottomColor:"#333338"},"&:after":{borderTopColor:"transparent",borderBottomColor:"transparent"}}});const noOffset={x:0,y:0};const showTooltip=Facet.define({enables:[tooltipPlugin,baseTheme]});const showHoverTooltip=Facet.define();class HoverTooltipHost{constructor(view){this.view=view;this.mounted=false;this.dom=document.createElement("div");this.dom.classList.add("cm-tooltip-hover");this.manager=new TooltipViewManager(view,showHoverTooltip,t=>this.createHostedView(t))}static create(view){return new HoverTooltipHost(view)}createHostedView(tooltip){let hostedView=tooltip.create(this.view);hostedView.dom.classList.add("cm-tooltip-section");this.dom.appendChild(hostedView.dom);if(this.mounted&&hostedView.mount)hostedView.mount(this.view);return hostedView}mount(view){for(let hostedView of this.manager.tooltipViews){if(hostedView.mount)hostedView.mount(view)}this.mounted=true}positioned(){for(let hostedView of this.manager.tooltipViews){if(hostedView.positioned)hostedView.positioned()}}update(update){this.manager.update(update)}}const showHoverTooltipHost=showTooltip.compute([showHoverTooltip],state=>{let tooltips=state.facet(showHoverTooltip).filter(t=>t);if(tooltips.length===0)return null;return{pos:Math.min(...tooltips.map(t=>t.pos)),end:Math.max(...tooltips.filter(t=>t.end!=null).map(t=>t.end)),create:HoverTooltipHost.create,above:tooltips[0].above,arrow:tooltips.some(t=>t.arrow)}});class HoverPlugin{constructor(view,source,field,setHover,hoverTime){this.view=view;this.source=source;this.field=field;this.setHover=setHover;this.hoverTime=hoverTime;this.hoverTimeout=-1;this.restartTimeout=-1;this.pending=null;this.lastMove={x:0,y:0,target:view.dom,time:0};this.checkHover=this.checkHover.bind(this);view.dom.addEventListener("mouseleave",this.mouseleave=this.mouseleave.bind(this));view.dom.addEventListener("mousemove",this.mousemove=this.mousemove.bind(this))}update(){if(this.pending){this.pending=null;clearTimeout(this.restartTimeout);this.restartTimeout=setTimeout(()=>this.startHover(),20)}}get active(){return this.view.state.field(this.field)}checkHover(){this.hoverTimeout=-1;if(this.active)return;let hovered=Date.now()-this.lastMove.time;if(hovered<this.hoverTime)this.hoverTimeout=setTimeout(this.checkHover,this.hoverTime-hovered);else this.startHover()}startHover(){clearTimeout(this.restartTimeout);let{lastMove}=this;let pos=this.view.contentDOM.contains(lastMove.target)?this.view.posAtCoords(lastMove):null;if(pos==null)return;let posCoords=this.view.coordsAtPos(pos);if(posCoords==null||lastMove.y<posCoords.top||lastMove.y>posCoords.bottom||lastMove.x<posCoords.left-this.view.defaultCharacterWidth||lastMove.x>posCoords.right+this.view.defaultCharacterWidth)return;let bidi=this.view.bidiSpans(this.view.state.doc.lineAt(pos)).find(s=>s.from<=pos&&s.to>=pos);let rtl=bidi&&bidi.dir==Direction.RTL?-1:1;let open=this.source(this.view,pos,lastMove.x<posCoords.left?-rtl:rtl);if(open===null||open===void 0?void 0:open.then){let pending=this.pending={pos:pos};open.then(result=>{if(this.pending==pending){this.pending=null;if(result)this.view.dispatch({effects:this.setHover.of(result)})}},e=>logException(this.view.state,e,"hover tooltip"))}else if(open){this.view.dispatch({effects:this.setHover.of(open)})}}mousemove(event){var _a;this.lastMove={x:event.clientX,y:event.clientY,target:event.target,time:Date.now()};if(this.hoverTimeout<0)this.hoverTimeout=setTimeout(this.checkHover,this.hoverTime);let tooltip=this.active;if(tooltip&&!isInTooltip(this.lastMove.target)||this.pending){let{pos}=tooltip||this.pending,end=(_a=tooltip===null||tooltip===void 0?void 0:tooltip.end)!==null&&_a!==void 0?_a:pos;if(pos==end?this.view.posAtCoords(this.lastMove)!=pos:!isOverRange(this.view,pos,end,event.clientX,event.clientY,6)){this.view.dispatch({effects:this.setHover.of(null)});this.pending=null}}}mouseleave(){clearTimeout(this.hoverTimeout);this.hoverTimeout=-1;if(this.active)this.view.dispatch({effects:this.setHover.of(null)})}destroy(){clearTimeout(this.hoverTimeout);this.view.dom.removeEventListener("mouseleave",this.mouseleave);this.view.dom.removeEventListener("mousemove",this.mousemove)}}function isInTooltip(elt){for(let cur=elt;cur;cur=cur.parentNode)if(cur.nodeType==1&&cur.classList.contains("cm-tooltip"))return true;return false}function isOverRange(view,from,to,x,y,margin){let range=document.createRange();let fromDOM=view.domAtPos(from),toDOM=view.domAtPos(to);range.setEnd(toDOM.node,toDOM.offset);range.setStart(fromDOM.node,fromDOM.offset);let rects=range.getClientRects();range.detach();for(let i=0;i<rects.length;i++){let rect=rects[i];let dist=Math.max(rect.top-y,y-rect.bottom,rect.left-x,x-rect.right);if(dist<=margin)return true}return false}function hoverTooltip(source,options={}){let setHover=StateEffect.define();let hoverState=StateField.define({create(){return null},update(value,tr){if(value&&(options.hideOnChange&&(tr.docChanged||tr.selection)||options.hideOn&&options.hideOn(tr,value)))return null;if(value&&tr.docChanged){let newPos=tr.changes.mapPos(value.pos,-1,MapMode.TrackDel);if(newPos==null)return null;let copy=Object.assign(Object.create(null),value);copy.pos=newPos;if(value.end!=null)copy.end=tr.changes.mapPos(value.end);value=copy}for(let effect of tr.effects){if(effect.is(setHover))value=effect.value;if(effect.is(closeHoverTooltipEffect))value=null}return value},provide:f=>showHoverTooltip.from(f)});return[hoverState,ViewPlugin.define(view=>new HoverPlugin(view,source,hoverState,setHover,options.hoverTime||300)),showHoverTooltipHost]}function getTooltip(view,tooltip){let plugin=view.plugin(tooltipPlugin);if(!plugin)return null;let found=plugin.manager.tooltips.indexOf(tooltip);return found<0?null:plugin.manager.tooltipViews[found]}function hasHoverTooltips(state){return state.facet(showHoverTooltip).some(x=>x)}const closeHoverTooltipEffect=StateEffect.define();const closeHoverTooltips=closeHoverTooltipEffect.of(null);function repositionTooltips(view){var _a;(_a=view.plugin(tooltipPlugin))===null||_a===void 0?void 0:_a.maybeMeasure()}const panelConfig=Facet.define({combine(configs){let topContainer,bottomContainer;for(let c of configs){topContainer=topContainer||c.topContainer;bottomContainer=bottomContainer||c.bottomContainer}return{topContainer:topContainer,bottomContainer:bottomContainer}}});function panels(config){return config?[panelConfig.of(config)]:[]}function getPanel(view,panel){let plugin=view.plugin(panelPlugin);let index=plugin?plugin.specs.indexOf(panel):-1;return index>-1?plugin.panels[index]:null}const panelPlugin=ViewPlugin.fromClass(class{constructor(view){this.input=view.state.facet(showPanel);this.specs=this.input.filter(s=>s);this.panels=this.specs.map(spec=>spec(view));let conf=view.state.facet(panelConfig);this.top=new PanelGroup(view,true,conf.topContainer);this.bottom=new PanelGroup(view,false,conf.bottomContainer);this.top.sync(this.panels.filter(p=>p.top));this.bottom.sync(this.panels.filter(p=>!p.top));for(let p of this.panels){p.dom.classList.add("cm-panel");if(p.mount)p.mount()}}update(update){let conf=update.state.facet(panelConfig);if(this.top.container!=conf.topContainer){this.top.sync([]);this.top=new PanelGroup(update.view,true,conf.topContainer)}if(this.bottom.container!=conf.bottomContainer){this.bottom.sync([]);this.bottom=new PanelGroup(update.view,false,conf.bottomContainer)}this.top.syncClasses();this.bottom.syncClasses();let input=update.state.facet(showPanel);if(input!=this.input){let specs=input.filter(x=>x);let panels=[],top=[],bottom=[],mount=[];for(let spec of specs){let known=this.specs.indexOf(spec),panel;if(known<0){panel=spec(update.view);mount.push(panel)}else{panel=this.panels[known];if(panel.update)panel.update(update)}panels.push(panel);(panel.top?top:bottom).push(panel)}this.specs=specs;this.panels=panels;this.top.sync(top);this.bottom.sync(bottom);for(let p of mount){p.dom.classList.add("cm-panel");if(p.mount)p.mount()}}else{for(let p of this.panels)if(p.update)p.update(update)}}destroy(){this.top.sync([]);this.bottom.sync([])}},{provide:plugin=>EditorView.scrollMargins.of(view=>{let value=view.plugin(plugin);return value&&{top:value.top.scrollMargin(),bottom:value.bottom.scrollMargin()}})});class PanelGroup{constructor(view,top,container){this.view=view;this.top=top;this.container=container;this.dom=undefined;this.classes="";this.panels=[];this.syncClasses()}sync(panels){for(let p of this.panels)if(p.destroy&&panels.indexOf(p)<0)p.destroy();this.panels=panels;this.syncDOM()}syncDOM(){if(this.panels.length==0){if(this.dom){this.dom.remove();this.dom=undefined}return}if(!this.dom){this.dom=document.createElement("div");this.dom.className=this.top?"cm-panels cm-panels-top":"cm-panels cm-panels-bottom";this.dom.style[this.top?"top":"bottom"]="0";let parent=this.container||this.view.dom;parent.insertBefore(this.dom,this.top?parent.firstChild:null)}let curDOM=this.dom.firstChild;for(let panel of this.panels){if(panel.dom.parentNode==this.dom){while(curDOM!=panel.dom)curDOM=rm(curDOM);curDOM=curDOM.nextSibling}else{this.dom.insertBefore(panel.dom,curDOM)}}while(curDOM)curDOM=rm(curDOM)}scrollMargin(){return!this.dom||this.container?0:Math.max(0,this.top?this.dom.getBoundingClientRect().bottom-Math.max(0,this.view.scrollDOM.getBoundingClientRect().top):Math.min(innerHeight,this.view.scrollDOM.getBoundingClientRect().bottom)-this.dom.getBoundingClientRect().top)}syncClasses(){if(!this.container||this.classes==this.view.themeClasses)return;for(let cls of this.classes.split(" "))if(cls)this.container.classList.remove(cls);for(let cls of(this.classes=this.view.themeClasses).split(" "))if(cls)this.container.classList.add(cls)}}function rm(node){let next=node.nextSibling;node.remove();return next}const showPanel=Facet.define({enables:panelPlugin});class GutterMarker extends RangeValue{compare(other){return this==other||this.constructor==other.constructor&&this.eq(other)}eq(other){return false}destroy(dom){}}GutterMarker.prototype.elementClass="";GutterMarker.prototype.toDOM=undefined;GutterMarker.prototype.mapMode=MapMode.TrackBefore;GutterMarker.prototype.startSide=GutterMarker.prototype.endSide=-1;GutterMarker.prototype.point=true;const gutterLineClass=Facet.define();const defaults={class:"",renderEmptyElements:false,elementStyle:"",markers:()=>RangeSet.empty,lineMarker:()=>null,lineMarkerChange:null,initialSpacer:null,updateSpacer:null,domEventHandlers:{}};const activeGutters=Facet.define();function gutter(config){return[gutters(),activeGutters.of(Object.assign(Object.assign({},defaults),config))]}const unfixGutters=Facet.define({combine:values=>values.some(x=>x)});function gutters(config){let result=[gutterView];if(config&&config.fixed===false)result.push(unfixGutters.of(true));return result}const gutterView=ViewPlugin.fromClass(class{constructor(view){this.view=view;this.prevViewport=view.viewport;this.dom=document.createElement("div");this.dom.className="cm-gutters";this.dom.setAttribute("aria-hidden","true");this.dom.style.minHeight=this.view.contentHeight+"px";this.gutters=view.state.facet(activeGutters).map(conf=>new SingleGutterView(view,conf));for(let gutter of this.gutters)this.dom.appendChild(gutter.dom);this.fixed=!view.state.facet(unfixGutters);if(this.fixed){this.dom.style.position="sticky"}this.syncGutters(false);view.scrollDOM.insertBefore(this.dom,view.contentDOM)}update(update){if(this.updateGutters(update)){let vpA=this.prevViewport,vpB=update.view.viewport;let vpOverlap=Math.min(vpA.to,vpB.to)-Math.max(vpA.from,vpB.from);this.syncGutters(vpOverlap<(vpB.to-vpB.from)*.8)}if(update.geometryChanged)this.dom.style.minHeight=this.view.contentHeight+"px";if(this.view.state.facet(unfixGutters)!=!this.fixed){this.fixed=!this.fixed;this.dom.style.position=this.fixed?"sticky":""}this.prevViewport=update.view.viewport}syncGutters(detach){let after=this.dom.nextSibling;if(detach)this.dom.remove();let lineClasses=RangeSet.iter(this.view.state.facet(gutterLineClass),this.view.viewport.from);let classSet=[];let contexts=this.gutters.map(gutter=>new UpdateContext(gutter,this.view.viewport,-this.view.documentPadding.top));for(let line of this.view.viewportLineBlocks){let text;if(Array.isArray(line.type)){for(let b of line.type)if(b.type==BlockType.Text){text=b;break}}else{text=line.type==BlockType.Text?line:undefined}if(!text)continue;if(classSet.length)classSet=[];advanceCursor(lineClasses,classSet,line.from);for(let cx of contexts)cx.line(this.view,text,classSet)}for(let cx of contexts)cx.finish();if(detach)this.view.scrollDOM.insertBefore(this.dom,after)}updateGutters(update){let prev=update.startState.facet(activeGutters),cur=update.state.facet(activeGutters);let change=update.docChanged||update.heightChanged||update.viewportChanged||!RangeSet.eq(update.startState.facet(gutterLineClass),update.state.facet(gutterLineClass),update.view.viewport.from,update.view.viewport.to);if(prev==cur){for(let gutter of this.gutters)if(gutter.update(update))change=true}else{change=true;let gutters=[];for(let conf of cur){let known=prev.indexOf(conf);if(known<0){gutters.push(new SingleGutterView(this.view,conf))}else{this.gutters[known].update(update);gutters.push(this.gutters[known])}}for(let g of this.gutters){g.dom.remove();if(gutters.indexOf(g)<0)g.destroy()}for(let g of gutters)this.dom.appendChild(g.dom);this.gutters=gutters}return change}destroy(){for(let view of this.gutters)view.destroy();this.dom.remove()}},{provide:plugin=>EditorView.scrollMargins.of(view=>{let value=view.plugin(plugin);if(!value||value.gutters.length==0||!value.fixed)return null;return view.textDirection==Direction.LTR?{left:value.dom.offsetWidth}:{right:value.dom.offsetWidth}})});function asArray(val){return Array.isArray(val)?val:[val]}function advanceCursor(cursor,collect,pos){while(cursor.value&&cursor.from<=pos){if(cursor.from==pos)collect.push(cursor.value);cursor.next()}}class UpdateContext{constructor(gutter,viewport,height){this.gutter=gutter;this.height=height;this.localMarkers=[];this.i=0;this.cursor=RangeSet.iter(gutter.markers,viewport.from)}line(view,line,extraMarkers){if(this.localMarkers.length)this.localMarkers=[];advanceCursor(this.cursor,this.localMarkers,line.from);let localMarkers=extraMarkers.length?this.localMarkers.concat(extraMarkers):this.localMarkers;let forLine=this.gutter.config.lineMarker(view,line,localMarkers);if(forLine)localMarkers.unshift(forLine);let gutter=this.gutter;if(localMarkers.length==0&&!gutter.config.renderEmptyElements)return;let above=line.top-this.height;if(this.i==gutter.elements.length){let newElt=new GutterElement(view,line.height,above,localMarkers);gutter.elements.push(newElt);gutter.dom.appendChild(newElt.dom)}else{gutter.elements[this.i].update(view,line.height,above,localMarkers)}this.height=line.bottom;this.i++}finish(){let gutter=this.gutter;while(gutter.elements.length>this.i){let last=gutter.elements.pop();gutter.dom.removeChild(last.dom);last.destroy()}}}class SingleGutterView{constructor(view,config){this.view=view;this.config=config;this.elements=[];this.spacer=null;this.dom=document.createElement("div");this.dom.className="cm-gutter"+(this.config.class?" "+this.config.class:"");for(let prop in config.domEventHandlers){this.dom.addEventListener(prop,event=>{let line=view.lineBlockAtHeight(event.clientY-view.documentTop);if(config.domEventHandlers[prop](view,line,event))event.preventDefault()})}this.markers=asArray(config.markers(view));if(config.initialSpacer){this.spacer=new GutterElement(view,0,0,[config.initialSpacer(view)]);this.dom.appendChild(this.spacer.dom);this.spacer.dom.style.cssText+="visibility: hidden; pointer-events: none"}}update(update){let prevMarkers=this.markers;this.markers=asArray(this.config.markers(update.view));if(this.spacer&&this.config.updateSpacer){let updated=this.config.updateSpacer(this.spacer.markers[0],update);if(updated!=this.spacer.markers[0])this.spacer.update(update.view,0,0,[updated])}let vp=update.view.viewport;return!RangeSet.eq(this.markers,prevMarkers,vp.from,vp.to)||(this.config.lineMarkerChange?this.config.lineMarkerChange(update):false)}destroy(){for(let elt of this.elements)elt.destroy()}}class GutterElement{constructor(view,height,above,markers){this.height=-1;this.above=0;this.markers=[];this.dom=document.createElement("div");this.dom.className="cm-gutterElement";this.update(view,height,above,markers)}update(view,height,above,markers){if(this.height!=height)this.dom.style.height=(this.height=height)+"px";if(this.above!=above)this.dom.style.marginTop=(this.above=above)?above+"px":"";if(!sameMarkers(this.markers,markers))this.setMarkers(view,markers)}setMarkers(view,markers){let cls="cm-gutterElement",domPos=this.dom.firstChild;for(let iNew=0,iOld=0;;){let skipTo=iOld,marker=iNew<markers.length?markers[iNew++]:null,matched=false;if(marker){let c=marker.elementClass;if(c)cls+=" "+c;for(let i=iOld;i<this.markers.length;i++)if(this.markers[i].compare(marker)){skipTo=i;matched=true;break}}else{skipTo=this.markers.length}while(iOld<skipTo){let next=this.markers[iOld++];if(next.toDOM){next.destroy(domPos);let after=domPos.nextSibling;domPos.remove();domPos=after}}if(!marker)break;if(marker.toDOM){if(matched)domPos=domPos.nextSibling;else this.dom.insertBefore(marker.toDOM(view),domPos)}if(matched)iOld++}this.dom.className=cls;this.markers=markers}destroy(){this.setMarkers(null,[])}}function sameMarkers(a,b){if(a.length!=b.length)return false;for(let i=0;i<a.length;i++)if(!a[i].compare(b[i]))return false;return true}const lineNumberMarkers=Facet.define();const lineNumberConfig=Facet.define({combine(values){return combineConfig(values,{formatNumber:String,domEventHandlers:{}},{domEventHandlers(a,b){let result=Object.assign({},a);for(let event in b){let exists=result[event],add=b[event];result[event]=exists?(view,line,event)=>exists(view,line,event)||add(view,line,event):add}return result}})}});class NumberMarker extends GutterMarker{constructor(number){super();this.number=number}eq(other){return this.number==other.number}toDOM(){return document.createTextNode(this.number)}}function formatNumber(view,number){return view.state.facet(lineNumberConfig).formatNumber(number,view.state)}const lineNumberGutter=activeGutters.compute([lineNumberConfig],state=>({class:"cm-lineNumbers",renderEmptyElements:false,markers(view){return view.state.facet(lineNumberMarkers)},lineMarker(view,line,others){if(others.some(m=>m.toDOM))return null;return new NumberMarker(formatNumber(view,view.state.doc.lineAt(line.from).number))},lineMarkerChange:update=>update.startState.facet(lineNumberConfig)!=update.state.facet(lineNumberConfig),initialSpacer(view){return new NumberMarker(formatNumber(view,maxLineNumber(view.state.doc.lines)))},updateSpacer(spacer,update){let max=formatNumber(update.view,maxLineNumber(update.view.state.doc.lines));return max==spacer.number?spacer:new NumberMarker(max)},domEventHandlers:state.facet(lineNumberConfig).domEventHandlers}));function lineNumbers(config={}){return[lineNumberConfig.of(config),gutters(),lineNumberGutter]}function maxLineNumber(lines){let last=9;while(last<lines)last=last*10+9;return last}const activeLineGutterMarker=new class extends GutterMarker{constructor(){super(...arguments);this.elementClass="cm-activeLineGutter"}};const activeLineGutterHighlighter=gutterLineClass.compute(["selection"],state=>{let marks=[],last=-1;for(let range of state.selection.ranges){let linePos=state.doc.lineAt(range.head).from;if(linePos>last){last=linePos;marks.push(activeLineGutterMarker.range(linePos))}}return RangeSet.of(marks)});function highlightActiveLineGutter(){return activeLineGutterHighlighter}const __test={HeightMap:HeightMap,HeightOracle:HeightOracle,MeasuredHeights:MeasuredHeights,QueryType:QueryType,ChangedRange:ChangedRange,computeOrder:computeOrder,moveVisually:moveVisually};export{BidiSpan,BlockInfo,BlockType,Decoration,Direction,EditorView,GutterMarker,MatchDecorator,ViewPlugin,ViewUpdate,WidgetType,__test,closeHoverTooltips,crosshairCursor,drawSelection,dropCursor,getPanel,getTooltip,gutter,gutterLineClass,gutters,hasHoverTooltips,highlightActiveLine,highlightActiveLineGutter,highlightSpecialChars,hoverTooltip,keymap,lineNumberMarkers,lineNumbers,logException,panels,placeholder,rectangularSelection,repositionTooltips,runScopeHandlers,scrollPastEnd,showPanel,showTooltip,tooltips};
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