Function cursorCoords

lib/codemirror/codemirror.min.js:25–25

(cm,pos,context,lineObj,preparedMeasure,varHeight)

var highlighted=highlightLine(cm,line,state,true);line.styles=highlighted.styles;var oldCls=line.styleClasses,newCls=highlighted.classes;if(newCls){line.styleClasses=newCls}else{if(oldCls){line.styleClasses=null}}var ischange=!oldStyles||oldStyles.length!=line.styles.length||oldCls!=newCls&&(!oldCls||!newCls||oldCls.bgClass!=newCls.bgClass||oldCls.textClass!=newCls.textClass);for(var i=0;!ischange&&i<oldStyles.length;++i){ischange=oldStyles[i]!=line.styles[i]}if(ischange){changedLines.push(doc.frontier)}line.stateAfter=copyState(doc.mode,state)}else{processLine(cm,line.text,state);line.stateAfter=doc.frontier%5==0?copyState(doc.mode,state):null}++doc.frontier;if(+new Date>end){startWorker(cm,cm.options.workDelay);return true}});if(changedLines.length){runInOp(cm,function(){for(var i=0;i<changedLines.length;i++){regLineChange(cm,changedLines[i],"text")}})}}function findStartLine(cm,n,precise){var minindent,minline,doc=cm.doc;var lim=precise?-1:n-(cm.doc.mode.innerMode?1000:100);for(var search=n;search>lim;--search){if(search<=doc.first){return doc.first}var line=getLine(doc,search-1);if(line.stateAfter&&(!precise||search<=doc.frontier)){return search}var indented=countColumn(line.text,null,cm.options.tabSize);if(minline==null||minindent>indented){minline=search-1;minindent=indented}}return minline}function getStateBefore(cm,n,precise){var doc=cm.doc,display=cm.display;if(!doc.mode.startState){return true}var pos=findStartLine(cm,n,precise),state=pos>doc.first&&getLine(doc,pos-1).stateAfter;if(!state){state=startState(doc.mode)}else{state=copyState(doc.mode,state)}doc.iter(pos,n,function(line){processLine(cm,line.text,state);var save=pos==n-1||pos%5==0||pos>=display.viewFrom&&pos<display.viewTo;line.stateAfter=save?copyState(doc.mode,state):null;++pos});if(precise){doc.frontier=pos}return state}function paddingTop(display){return display.lineSpace.offsetTop}function paddingVert(display){return display.mover.offsetHeight-display.lineSpace.offsetHeight}function paddingH(display){if(display.cachedPaddingH){return display.cachedPaddingH}var e=removeChildrenAndAdd(display.measure,elt("pre","x"));var style=window.getComputedStyle?window.getComputedStyle(e):e.currentStyle;var data={left:parseInt(style.paddingLeft),right:parseInt(style.paddingRight)};if(!isNaN(data.left)&&!isNaN(data.right)){display.cachedPaddingH=data}return data}function scrollGap(cm){return scrollerGap-cm.display.nativeBarWidth}function displayWidth(cm){return cm.display.scroller.clientWidth-scrollGap(cm)-cm.display.barWidth}function displayHeight(cm){return cm.display.scroller.clientHeight-scrollGap(cm)-cm.display.barHeight}function ensureLineHeights(cm,lineView,rect){var wrapping=cm.options.lineWrapping;var curWidth=wrapping&&displayWidth(cm);if(!lineView.measure.heights||wrapping&&lineView.measure.width!=curWidth){var heights=lineView.measure.heights=[];if(wrapping){lineView.measure.width=curWidth;var rects=lineView.text.firstChild.getClientRects();for(var i=0;i<rects.length-1;i++){var cur=rects[i],next=rects[i+1];if(Math.abs(cur.bottom-next.bottom)>2){heights.push((cur.bottom+next.top)/2-rect.top)}}}heights.push(rect.bottom-rect.top)}}function mapFromLineView(lineView,line,lineN){if(lineView.line==line){return{map:lineView.measure.map,cache:lineView.measure.cache}}for(var i=0;i<lineView.rest.length;i++){if(lineView.rest[i]==line){return{map:lineView.measure.maps[i],cache:lineView.measure.caches[i]}}}for(var i=0;i<lineView.rest.length;i++){if(lineNo(lineView.rest[i])>lineN){return{map:lineView.measure.maps[i],cache:lineView.measure.caches[i],before:true}}}}function updateExternalMeasurement(cm,line){line=visualLine(line);var lineN=lineNo(line);var view=cm.display.externalMeasured=new LineView(cm.doc,line,lineN);view.lineN=lineN;var built=view.built=buildLineContent(cm,view);view.text=built.pre;removeChildrenAndAdd(cm.display.lineMeasure,built.pre);return view}function measureChar(cm,line,ch,bias){return measureCharPrepared(cm,prepareMeasureForLine(cm,line),ch,bias)}function findViewForLine(cm,lineN){if(lineN>=cm.display.viewFrom&&lineN<cm.display.viewTo){return cm.display.view[findViewIndex(cm,lineN)]}var ext=cm.display.externalMeasured;if(ext&&lineN>=ext.lineN&&lineN<ext.lineN+ext.size){return ext}}function prepareMeasureForLine(cm,line){var lineN=lineNo(line);var view=findViewForLine(cm,lineN);if(view&&!view.text){view=null}else{if(view&&view.changes){updateLineForChanges(cm,view,lineN,getDimensions(cm))}}if(!view){view=updateExternalMeasurement(cm,line)}var info=mapFromLineView(view,line,lineN);return{line:line,view:view,rect:null,map:info.map,cache:info.cache,before:info.before,hasHeights:false}}function measureCharPrepared(cm,prepared,ch,bias,varHeight){if(prepared.before){ch=-1}var key=ch+(bias||""),found;if(prepared.cache.hasOwnProperty(key)){found=prepared.cache[key]}else{if(!prepared.rect){prepared.rect=prepared.view.text.getBoundingClientRect()}if(!prepared.hasHeights){ensureLineHeights(cm,prepared.view,prepared.rect);prepared.hasHeights=true
}found=measureCharInner(cm,prepared,ch,bias);if(!found.bogus){prepared.cache[key]=found}}return{left:found.left,right:found.right,top:varHeight?found.rtop:found.top,bottom:varHeight?found.rbottom:found.bottom}}var nullRect={left:0,right:0,top:0,bottom:0};function nodeAndOffsetInLineMap(map,ch,bias){var node,start,end,collapse;for(var i=0;i<map.length;i+=3){var mStart=map[i],mEnd=map[i+1];if(ch<mStart){start=0;end=1;collapse="left"}else{if(ch<mEnd){start=ch-mStart;end=start+1}else{if(i==map.length-3||ch==mEnd&&map[i+3]>ch){end=mEnd-mStart;start=end-1;if(ch>=mEnd){collapse="right"}}}}if(start!=null){node=map[i+2];if(mStart==mEnd&&bias==(node.insertLeft?"left":"right")){collapse=bias}if(bias=="left"&&start==0){while(i&&map[i-2]==map[i-3]&&map[i-1].insertLeft){node=map[(i-=3)+2];collapse="left"}}if(bias=="right"&&start==mEnd-mStart){while(i<map.length-3&&map[i+3]==map[i+4]&&!map[i+5].insertLeft){node=map[(i+=3)+2];collapse="right"}}break}}return{node:node,start:start,end:end,collapse:collapse,coverStart:mStart,coverEnd:mEnd}}function measureCharInner(cm,prepared,ch,bias){var place=nodeAndOffsetInLineMap(prepared.map,ch,bias);var node=place.node,start=place.start,end=place.end,collapse=place.collapse;var rect;if(node.nodeType==3){for(var i=0;i<4;i++){while(start&&isExtendingChar(prepared.line.text.charAt(place.coverStart+start))){--start}while(place.coverStart+end<place.coverEnd&&isExtendingChar(prepared.line.text.charAt(place.coverStart+end))){++end}if(ie&&ie_version<9&&start==0&&end==place.coverEnd-place.coverStart){rect=node.parentNode.getBoundingClientRect()}else{if(ie&&cm.options.lineWrapping){var rects=range(node,start,end).getClientRects();if(rects.length){rect=rects[bias=="right"?rects.length-1:0]}else{rect=nullRect}}else{rect=range(node,start,end).getBoundingClientRect()||nullRect}}if(rect.left||rect.right||start==0){break}end=start;start=start-1;collapse="right"}if(ie&&ie_version<11){rect=maybeUpdateRectForZooming(cm.display.measure,rect)}}else{if(start>0){collapse=bias="right"}var rects;if(cm.options.lineWrapping&&(rects=node.getClientRects()).length>1){rect=rects[bias=="right"?rects.length-1:0]}else{rect=node.getBoundingClientRect()}}if(ie&&ie_version<9&&!start&&(!rect||!rect.left&&!rect.right)){var rSpan=node.parentNode.getClientRects()[0];if(rSpan){rect={left:rSpan.left,right:rSpan.left+charWidth(cm.display),top:rSpan.top,bottom:rSpan.bottom}}else{rect=nullRect}}var rtop=rect.top-prepared.rect.top,rbot=rect.bottom-prepared.rect.top;var mid=(rtop+rbot)/2;var heights=prepared.view.measure.heights;for(var i=0;i<heights.length-1;i++){if(mid<heights[i]){break}}var top=i?heights[i-1]:0,bot=heights[i];var result={left:(collapse=="right"?rect.right:rect.left)-prepared.rect.left,right:(collapse=="left"?rect.left:rect.right)-prepared.rect.left,top:top,bottom:bot};if(!rect.left&&!rect.right){result.bogus=true}if(!cm.options.singleCursorHeightPerLine){result.rtop=rtop;result.rbottom=rbot}return result}function maybeUpdateRectForZooming(measure,rect){if(!window.screen||screen.logicalXDPI==null||screen.logicalXDPI==screen.deviceXDPI||!hasBadZoomedRects(measure)){return rect}var scaleX=screen.logicalXDPI/screen.deviceXDPI;var scaleY=screen.logicalYDPI/screen.deviceYDPI;return{left:rect.left*scaleX,right:rect.right*scaleX,top:rect.top*scaleY,bottom:rect.bottom*scaleY}}function clearLineMeasurementCacheFor(lineView){if(lineView.measure){lineView.measure.cache={};lineView.measure.heights=null;if(lineView.rest){for(var i=0;i<lineView.rest.length;i++){lineView.measure.caches[i]={}}}}}function clearLineMeasurementCache(cm){cm.display.externalMeasure=null;removeChildren(cm.display.lineMeasure);for(var i=0;i<cm.display.view.length;i++){clearLineMeasurementCacheFor(cm.display.view[i])}}function clearCaches(cm){clearLineMeasurementCache(cm);cm.display.cachedCharWidth=cm.display.cachedTextHeight=cm.display.cachedPaddingH=null;if(!cm.options.lineWrapping){cm.display.maxLineChanged=true}cm.display.lineNumChars=null}function pageScrollX(){return window.pageXOffset||(document.documentElement||document.body).scrollLeft}function pageScrollY(){return window.pageYOffset||(document.documentElement||document.body).scrollTop}function intoCoordSystem(cm,lineObj,rect,context){if(lineObj.widgets){for(var i=0;i<lineObj.widgets.length;++i){if(lineObj.widgets[i].above){var size=widgetHeight(lineObj.widgets[i]);rect.top+=size;rect.bottom+=size}}}if(context=="line"){return rect}if(!context){context="local"}var yOff=heightAtLine(lineObj);if(context=="local"){yOff+=paddingTop(cm.display)}else{yOff-=cm.display.viewOffset}if(context=="page"||context=="window"){var lOff=cm.display.lineSpace.getBoundingClientRect();yOff+=lOff.top+(context=="window"?0:pageScrollY());var xOff=lOff.left+(context=="window"?0:pageScrollX());rect.left+=xOff;rect.right+=xOff}rect.top+=yOff;rect.bottom+=yOff;return rect}function fromCoordSystem(cm,coords,context){if(context=="div"){return coords}var left=coords.left,top=coords.top;if(context=="page"){left-=pageScrollX();top-=pageScrollY()
}else{if(context=="local"||!context){var localBox=cm.display.sizer.getBoundingClientRect();left+=localBox.left;top+=localBox.top}}var lineSpaceBox=cm.display.lineSpace.getBoundingClientRect();return{left:left-lineSpaceBox.left,top:top-lineSpaceBox.top}}function charCoords(cm,pos,context,lineObj,bias){if(!lineObj){lineObj=getLine(cm.doc,pos.line)}return intoCoordSystem(cm,lineObj,measureChar(cm,lineObj,pos.ch,bias),context)}function cursorCoords(cm,pos,context,lineObj,preparedMeasure,varHeight){lineObj=lineObj||getLine(cm.doc,pos.line);if(!preparedMeasure){preparedMeasure=prepareMeasureForLine(cm,lineObj)}function get(ch,right){var m=measureCharPrepared(cm,preparedMeasure,ch,right?"right":"left",varHeight);if(right){m.left=m.right}else{m.right=m.left}return intoCoordSystem(cm,lineObj,m,context)}function getBidi(ch,partPos){var part=order[partPos],right=part.level%2;if(ch==bidiLeft(part)&&partPos&&part.level<order[partPos-1].level){part=order[--partPos];ch=bidiRight(part)-(part.level%2?0:1);right=true}else{if(ch==bidiRight(part)&&partPos<order.length-1&&part.level<order[partPos+1].level){part=order[++partPos];ch=bidiLeft(part)-part.level%2;right=false}}if(right&&ch==part.to&&ch>part.from){return get(ch-1)}return get(ch,right)}var order=getOrder(lineObj),ch=pos.ch;if(!order){return get(ch)}var partPos=getBidiPartAt(order,ch);var val=getBidi(ch,partPos);if(bidiOther!=null){val.other=getBidi(ch,bidiOther)}return val}function estimateCoords(cm,pos){var left=0,pos=clipPos(cm.doc,pos);if(!cm.options.lineWrapping){left=charWidth(cm.display)*pos.ch}var lineObj=getLine(cm.doc,pos.line);var top=heightAtLine(lineObj)+paddingTop(cm.display);return{left:left,right:left,top:top,bottom:top+lineObj.height}}function PosWithInfo(line,ch,outside,xRel){var pos=Pos(line,ch);pos.xRel=xRel;if(outside){pos.outside=true}return pos}function coordsChar(cm,x,y){var doc=cm.doc;y+=cm.display.viewOffset;if(y<0){return PosWithInfo(doc.first,0,true,-1)}var lineN=lineAtHeight(doc,y),last=doc.first+doc.size-1;if(lineN>last){return PosWithInfo(doc.first+doc.size-1,getLine(doc,last).text.length,true,1)}if(x<0){x=0}var lineObj=getLine(doc,lineN);for(;;){var found=coordsCharInner(cm,lineObj,lineN,x,y);var merged=collapsedSpanAtEnd(lineObj);var mergedPos=merged&&merged.find(0,true);if(merged&&(found.ch>mergedPos.from.ch||found.ch==mergedPos.from.ch&&found.xRel>0)){lineN=lineNo(lineObj=mergedPos.to.line)}else{return found}}}function coordsCharInner(cm,lineObj,lineNo,x,y){var innerOff=y-heightAtLine(lineObj);var wrongLine=false,adjust=2*cm.display.wrapper.clientWidth;var preparedMeasure=prepareMeasureForLine(cm,lineObj);function getX(ch){var sp=cursorCoords(cm,Pos(lineNo,ch),"line",lineObj,preparedMeasure);wrongLine=true;if(innerOff>sp.bottom){return sp.left-adjust}else{if(innerOff<sp.top){return sp.left+adjust}else{wrongLine=false}}return sp.left}var bidi=getOrder(lineObj),dist=lineObj.text.length;var from=lineLeft(lineObj),to=lineRight(lineObj);var fromX=getX(from),fromOutside=wrongLine,toX=getX(to),toOutside=wrongLine;if(x>toX){return PosWithInfo(lineNo,to,toOutside,1)}for(;;){if(bidi?to==from||to==moveVisually(lineObj,from,1):to-from<=1){var ch=x<fromX||x-fromX<=toX-x?from:to;var xDiff=x-(ch==from?fromX:toX);while(isExtendingChar(lineObj.text.charAt(ch))){++ch}var pos=PosWithInfo(lineNo,ch,ch==from?fromOutside:toOutside,xDiff<-1?-1:xDiff>1?1:0);return pos}var step=Math.ceil(dist/2),middle=from+step;if(bidi){middle=from;for(var i=0;i<step;++i){middle=moveVisually(lineObj,middle,1)}}var middleX=getX(middle);if(middleX>x){to=middle;toX=middleX;if(toOutside=wrongLine){toX+=1000}dist=step}else{from=middle;fromX=middleX;fromOutside=wrongLine;dist-=step}}}var measureText;function textHeight(display){if(display.cachedTextHeight!=null){return display.cachedTextHeight}if(measureText==null){measureText=elt("pre");for(var i=0;i<49;++i){measureText.appendChild(document.createTextNode("x"));measureText.appendChild(elt("br"))}measureText.appendChild(document.createTextNode("x"))}removeChildrenAndAdd(display.measure,measureText);var height=measureText.offsetHeight/50;if(height>3){display.cachedTextHeight=height}removeChildren(display.measure);return height||1}function charWidth(display){if(display.cachedCharWidth!=null){return display.cachedCharWidth}var anchor=elt("span","xxxxxxxxxx");var pre=elt("pre",[anchor]);removeChildrenAndAdd(display.measure,pre);var rect=anchor.getBoundingClientRect(),width=(rect.right-rect.left)/10;if(width>2){display.cachedCharWidth=width}return width||10}var operationGroup=null;var nextOpId=0;function startOperation(cm){cm.curOp={cm:cm,viewChanged:false,startHeight:cm.doc.height,forceUpdate:false,updateInput:null,typing:false,changeObjs:null,cursorActivityHandlers:null,cursorActivityCalled:0,selectionChanged:false,updateMaxLine:false,scrollLeft:null,scrollTop:null,scrollToPos:null,id:++nextOpId};if(operationGroup){operationGroup.ops.push(cm.curOp)}else{cm.curOp.ownsGroup=operationGroup={ops:[cm.curOp],delayedCallbacks:[]}}}function fireCallbacksForOps(group){var callbacks=group.delayedCallbacks,i=0;
do{for(;i<callbacks.length;i++){callbacks[i]()}for(var j=0;j<group.ops.length;j++){var op=group.ops[j];if(op.cursorActivityHandlers){while(op.cursorActivityCalled<op.cursorActivityHandlers.length){op.cursorActivityHandlers[op.cursorActivityCalled++](op.cm)}}}}while(i<callbacks.length)}function endOperation(cm){var op=cm.curOp,group=op.ownsGroup;if(!group){return}try{fireCallbacksForOps(group)}finally{operationGroup=null;for(var i=0;i<group.ops.length;i++){group.ops[i].cm.curOp=null}endOperations(group)}}function endOperations(group){var ops=group.ops;for(var i=0;i<ops.length;i++){endOperation_R1(ops[i])}for(var i=0;i<ops.length;i++){endOperation_W1(ops[i])}for(var i=0;i<ops.length;i++){endOperation_R2(ops[i])}for(var i=0;i<ops.length;i++){endOperation_W2(ops[i])}for(var i=0;i<ops.length;i++){endOperation_finish(ops[i])}}function endOperation_R1(op){var cm=op.cm,display=cm.display;maybeClipScrollbars(cm);if(op.updateMaxLine){findMaxLine(cm)}op.mustUpdate=op.viewChanged||op.forceUpdate||op.scrollTop!=null||op.scrollToPos&&(op.scrollToPos.from.line<display.viewFrom||op.scrollToPos.to.line>=display.viewTo)||display.maxLineChanged&&cm.options.lineWrapping;op.update=op.mustUpdate&&new DisplayUpdate(cm,op.mustUpdate&&{top:op.scrollTop,ensure:op.scrollToPos},op.forceUpdate)}function endOperation_W1(op){op.updatedDisplay=op.mustUpdate&&updateDisplayIfNeeded(op.cm,op.update)}function endOperation_R2(op){var cm=op.cm,display=cm.display;if(op.updatedDisplay){updateHeightsInViewport(cm)}op.barMeasure=measureForScrollbars(cm);if(display.maxLineChanged&&!cm.options.lineWrapping){op.adjustWidthTo=measureChar(cm,display.maxLine,display.maxLine.text.length).left+3;cm.display.sizerWidth=op.adjustWidthTo;op.barMeasure.scrollWidth=Math.max(display.scroller.clientWidth,display.sizer.offsetLeft+op.adjustWidthTo+scrollGap(cm)+cm.display.barWidth);op.maxScrollLeft=Math.max(0,display.sizer.offsetLeft+op.adjustWidthTo-displayWidth(cm))}if(op.updatedDisplay||op.selectionChanged){op.preparedSelection=display.input.prepareSelection()}}function endOperation_W2(op){var cm=op.cm;if(op.adjustWidthTo!=null){cm.display.sizer.style.minWidth=op.adjustWidthTo+"px";if(op.maxScrollLeft<cm.doc.scrollLeft){setScrollLeft(cm,Math.min(cm.display.scroller.scrollLeft,op.maxScrollLeft),true)}cm.display.maxLineChanged=false}if(op.preparedSelection){cm.display.input.showSelection(op.preparedSelection)}if(op.updatedDisplay){setDocumentHeight(cm,op.barMeasure)}if(op.updatedDisplay||op.startHeight!=cm.doc.height){updateScrollbars(cm,op.barMeasure)}if(op.selectionChanged){restartBlink(cm)}if(cm.state.focused&&op.updateInput){cm.display.input.reset(op.typing)}}function endOperation_finish(op){var cm=op.cm,display=cm.display,doc=cm.doc;if(op.updatedDisplay){postUpdateDisplay(cm,op.update)}if(display.wheelStartX!=null&&(op.scrollTop!=null||op.scrollLeft!=null||op.scrollToPos)){display.wheelStartX=display.wheelStartY=null}if(op.scrollTop!=null&&(display.scroller.scrollTop!=op.scrollTop||op.forceScroll)){doc.scrollTop=Math.max(0,Math.min(display.scroller.scrollHeight-display.scroller.clientHeight,op.scrollTop));display.scrollbars.setScrollTop(doc.scrollTop);display.scroller.scrollTop=doc.scrollTop}if(op.scrollLeft!=null&&(display.scroller.scrollLeft!=op.scrollLeft||op.forceScroll)){doc.scrollLeft=Math.max(0,Math.min(display.scroller.scrollWidth-displayWidth(cm),op.scrollLeft));display.scrollbars.setScrollLeft(doc.scrollLeft);display.scroller.scrollLeft=doc.scrollLeft;alignHorizontally(cm)}if(op.scrollToPos){var coords=scrollPosIntoView(cm,clipPos(doc,op.scrollToPos.from),clipPos(doc,op.scrollToPos.to),op.scrollToPos.margin);if(op.scrollToPos.isCursor&&cm.state.focused){maybeScrollWindow(cm,coords)}}var hidden=op.maybeHiddenMarkers,unhidden=op.maybeUnhiddenMarkers;if(hidden){for(var i=0;i<hidden.length;++i){if(!hidden[i].lines.length){signal(hidden[i],"hide")}}}if(unhidden){for(var i=0;i<unhidden.length;++i){if(unhidden[i].lines.length){signal(unhidden[i],"unhide")}}}if(display.wrapper.offsetHeight){doc.scrollTop=cm.display.scroller.scrollTop}if(op.changeObjs){signal(cm,"changes",cm,op.changeObjs)}if(op.update){op.update.finish()}}function runInOp(cm,f){if(cm.curOp){return f()}startOperation(cm);try{return f()}finally{endOperation(cm)}}function operation(cm,f){return function(){if(cm.curOp){return f.apply(cm,arguments)}startOperation(cm);try{return f.apply(cm,arguments)}finally{endOperation(cm)}}}function methodOp(f){return function(){if(this.curOp){return f.apply(this,arguments)}startOperation(this);try{return f.apply(this,arguments)}finally{endOperation(this)}}}function docMethodOp(f){return function(){var cm=this.cm;if(!cm||cm.curOp){return f.apply(this,arguments)}startOperation(cm);try{return f.apply(this,arguments)}finally{endOperation(cm)}}}function LineView(doc,line,lineN){this.line=line;this.rest=visualLineContinued(line);this.size=this.rest?lineNo(lst(this.rest))-lineN+1:1;this.node=this.text=null;this.hidden=lineIsHidden(doc,line)}function buildViewArray(cm,from,to){var array=[],nextPos;
for(var pos=from;pos<to;pos=nextPos){var view=new LineView(cm.doc,getLine(cm.doc,pos),pos);nextPos=pos+view.size;array.push(view)}return array}function regChange(cm,from,to,lendiff){if(from==null){from=cm.doc.first}if(to==null){to=cm.doc.first+cm.doc.size}if(!lendiff){lendiff=0}var display=cm.display;if(lendiff&&to<display.viewTo&&(display.updateLineNumbers==null||display.updateLineNumbers>from)){display.updateLineNumbers=from}cm.curOp.viewChanged=true;if(from>=display.viewTo){if(sawCollapsedSpans&&visualLineNo(cm.doc,from)<display.viewTo){resetView(cm)}}else{if(to<=display.viewFrom){if(sawCollapsedSpans&&visualLineEndNo(cm.doc,to+lendiff)>display.viewFrom){resetView(cm)}else{display.viewFrom+=lendiff;display.viewTo+=lendiff}}else{if(from<=display.viewFrom&&to>=display.viewTo){resetView(cm)}else{if(from<=display.viewFrom){var cut=viewCuttingPoint(cm,to,to+lendiff,1);if(cut){display.view=display.view.slice(cut.index);display.viewFrom=cut.lineN;display.viewTo+=lendiff}else{resetView(cm)}}else{if(to>=display.viewTo){var cut=viewCuttingPoint(cm,from,from,-1);if(cut){display.view=display.view.slice(0,cut.index);display.viewTo=cut.lineN}else{resetView(cm)}}else{var cutTop=viewCuttingPoint(cm,from,from,-1);var cutBot=viewCuttingPoint(cm,to,to+lendiff,1);if(cutTop&&cutBot){display.view=display.view.slice(0,cutTop.index).concat(buildViewArray(cm,cutTop.lineN,cutBot.lineN)).concat(display.view.slice(cutBot.index));display.viewTo+=lendiff}else{resetView(cm)}}}}}}var ext=display.externalMeasured;if(ext){if(to<ext.lineN){ext.lineN+=lendiff}else{if(from<ext.lineN+ext.size){display.externalMeasured=null}}}}function regLineChange(cm,line,type){cm.curOp.viewChanged=true;var display=cm.display,ext=cm.display.externalMeasured;if(ext&&line>=ext.lineN&&line<ext.lineN+ext.size){display.externalMeasured=null}if(line<display.viewFrom||line>=display.viewTo){return}var lineView=display.view[findViewIndex(cm,line)];if(lineView.node==null){return}var arr=lineView.changes||(lineView.changes=[]);if(indexOf(arr,type)==-1){arr.push(type)}}function resetView(cm){cm.display.viewFrom=cm.display.viewTo=cm.doc.first;cm.display.view=[];cm.display.viewOffset=0}function findViewIndex(cm,n){if(n>=cm.display.viewTo){return null}n-=cm.display.viewFrom;if(n<0){return null}var view=cm.display.view;for(var i=0;i<view.length;i++){n-=view[i].size;if(n<0){return i}}}function viewCuttingPoint(cm,oldN,newN,dir){var index=findViewIndex(cm,oldN),diff,view=cm.display.view;if(!sawCollapsedSpans||newN==cm.doc.first+cm.doc.size){return{index:index,lineN:newN}}for(var i=0,n=cm.display.viewFrom;i<index;i++){n+=view[i].size}if(n!=oldN){if(dir>0){if(index==view.length-1){return null}diff=(n+view[index].size)-oldN;index++}else{diff=n-oldN}oldN+=diff;newN+=diff}while(visualLineNo(cm.doc,newN)!=newN){if(index==(dir<0?0:view.length-1)){return null}newN+=dir*view[index-(dir<0?1:0)].size;index+=dir}return{index:index,lineN:newN}}function adjustView(cm,from,to){var display=cm.display,view=display.view;if(view.length==0||from>=display.viewTo||to<=display.viewFrom){display.view=buildViewArray(cm,from,to);display.viewFrom=from}else{if(display.viewFrom>from){display.view=buildViewArray(cm,from,display.viewFrom).concat(display.view)}else{if(display.viewFrom<from){display.view=display.view.slice(findViewIndex(cm,from))}}display.viewFrom=from;if(display.viewTo<to){display.view=display.view.concat(buildViewArray(cm,display.viewTo,to))}else{if(display.viewTo>to){display.view=display.view.slice(0,findViewIndex(cm,to))}}}display.viewTo=to}function countDirtyView(cm){var view=cm.display.view,dirty=0;for(var i=0;i<view.length;i++){var lineView=view[i];if(!lineView.hidden&&(!lineView.node||lineView.changes)){++dirty}}return dirty}function registerEventHandlers(cm){var d=cm.display;on(d.scroller,"mousedown",operation(cm,onMouseDown));if(ie&&ie_version<11){on(d.scroller,"dblclick",operation(cm,function(e){if(signalDOMEvent(cm,e)){return}var pos=posFromMouse(cm,e);if(!pos||clickInGutter(cm,e)||eventInWidget(cm.display,e)){return}e_preventDefault(e);var word=cm.findWordAt(pos);extendSelection(cm.doc,word.anchor,word.head)}))}else{on(d.scroller,"dblclick",function(e){signalDOMEvent(cm,e)||e_preventDefault(e)})}if(!captureRightClick){on(d.scroller,"contextmenu",function(e){onContextMenu(cm,e)})}var touchFinished,prevTouch={end:0};function finishTouch(){if(d.activeTouch){touchFinished=setTimeout(function(){d.activeTouch=null},1000);prevTouch=d.activeTouch;prevTouch.end=+new Date}}function isMouseLikeTouchEvent(e){if(e.touches.length!=1){return false}var touch=e.touches[0];return touch.radiusX<=1&&touch.radiusY<=1}function farAway(touch,other){if(other.left==null){return true}var dx=other.left-touch.left,dy=other.top-touch.top;return dx*dx+dy*dy>20*20}on(d.scroller,"touchstart",function(e){if(!isMouseLikeTouchEvent(e)){clearTimeout(touchFinished);var now=+new Date;d.activeTouch={start:now,moved:false,prev:now-prevTouch.end<=300?prevTouch:null};if(e.touches.length==1){d.activeTouch.left=e.touches[0].pageX;
d.activeTouch.top=e.touches[0].pageY}}});on(d.scroller,"touchmove",function(){if(d.activeTouch){d.activeTouch.moved=true}});on(d.scroller,"touchend",function(e){var touch=d.activeTouch;if(touch&&!eventInWidget(d,e)&&touch.left!=null&&!touch.moved&&new Date-touch.start<300){var pos=cm.coordsChar(d.activeTouch,"page"),range;if(!touch.prev||farAway(touch,touch.prev)){range=new Range(pos,pos)}else{if(!touch.prev.prev||farAway(touch,touch.prev.prev)){range=cm.findWordAt(pos)}else{range=new Range(Pos(pos.line,0),clipPos(cm.doc,Pos(pos.line+1,0)))}}cm.setSelection(range.anchor,range.head);cm.focus();e_preventDefault(e)}finishTouch()});on(d.scroller,"touchcancel",finishTouch);on(d.scroller,"scroll",function(){if(d.scroller.clientHeight){setScrollTop(cm,d.scroller.scrollTop);setScrollLeft(cm,d.scroller.scrollLeft,true);signal(cm,"scroll",cm)}});on(d.scroller,"mousewheel",function(e){onScrollWheel(cm,e)});on(d.scroller,"DOMMouseScroll",function(e){onScrollWheel(cm,e)});on(d.wrapper,"scroll",function(){d.wrapper.scrollTop=d.wrapper.scrollLeft=0});function drag_(e){if(!signalDOMEvent(cm,e)){e_stop(e)}}if(cm.options.dragDrop){on(d.scroller,"dragstart",function(e){onDragStart(cm,e)});on(d.scroller,"dragenter",drag_);on(d.scroller,"dragover",drag_);on(d.scroller,"drop",operation(cm,onDrop))}var inp=d.input.getField();on(inp,"keyup",function(e){onKeyUp.call(cm,e)});on(inp,"keydown",operation(cm,onKeyDown));on(inp,"keypress",operation(cm,onKeyPress));on(inp,"focus",bind(onFocus,cm));on(inp,"blur",bind(onBlur,cm))}function onResize(cm){var d=cm.display;if(d.lastWrapHeight==d.wrapper.clientHeight&&d.lastWrapWidth==d.wrapper.clientWidth){return}d.cachedCharWidth=d.cachedTextHeight=d.cachedPaddingH=null;d.scrollbarsClipped=false;cm.setSize()}function eventInWidget(display,e){for(var n=e_target(e);n!=display.wrapper;n=n.parentNode){if(!n||(n.nodeType==1&&n.getAttribute("cm-ignore-events")=="true")||(n.parentNode==display.sizer&&n!=display.mover)){return true}}}function posFromMouse(cm,e,liberal,forRect){var display=cm.display;if(!liberal&&e_target(e).getAttribute("cm-not-content")=="true"){return null}var x,y,space=display.lineSpace.getBoundingClientRect();try{x=e.clientX-space.left;y=e.clientY-space.top}catch(e){return null}var coords=coordsChar(cm,x,y),line;if(forRect&&coords.xRel==1&&(line=getLine(cm.doc,coords.line).text).length==coords.ch){var colDiff=countColumn(line,line.length,cm.options.tabSize)-line.length;coords=Pos(coords.line,Math.max(0,Math.round((x-paddingH(cm.display).left)/charWidth(cm.display))-colDiff))}return coords}function onMouseDown(e){var cm=this,display=cm.display;if(display.activeTouch&&display.input.supportsTouch()||signalDOMEvent(cm,e)){return}display.shift=e.shiftKey;if(eventInWidget(display,e)){if(!webkit){display.scroller.draggable=false;setTimeout(function(){display.scroller.draggable=true},100)}return}if(clickInGutter(cm,e)){return}var start=posFromMouse(cm,e);window.focus();switch(e_button(e)){case 1:if(start){leftButtonDown(cm,e,start)}else{if(e_target(e)==display.scroller){e_preventDefault(e)}}break;case 2:if(webkit){cm.state.lastMiddleDown=+new Date}if(start){extendSelection(cm.doc,start)}setTimeout(function(){display.input.focus()},20);e_preventDefault(e);break;case 3:if(captureRightClick){onContextMenu(cm,e)}break}}var lastClick,lastDoubleClick;function leftButtonDown(cm,e,start){if(ie){setTimeout(bind(ensureFocus,cm),0)}else{ensureFocus(cm)}var now=+new Date,type;if(lastDoubleClick&&lastDoubleClick.time>now-400&&cmp(lastDoubleClick.pos,start)==0){type="triple"}else{if(lastClick&&lastClick.time>now-400&&cmp(lastClick.pos,start)==0){type="double";lastDoubleClick={time:now,pos:start}}else{type="single";lastClick={time:now,pos:start}}}var sel=cm.doc.sel,modifier=mac?e.metaKey:e.ctrlKey,contained;if(cm.options.dragDrop&&dragAndDrop&&!isReadOnly(cm)&&type=="single"&&(contained=sel.contains(start))>-1&&!sel.ranges[contained].empty()){leftButtonStartDrag(cm,e,start,modifier)}else{leftButtonSelect(cm,e,start,type,modifier)}}function leftButtonStartDrag(cm,e,start,modifier){var display=cm.display;var dragEnd=operation(cm,function(e2){if(webkit){display.scroller.draggable=false}cm.state.draggingText=false;off(document,"mouseup",dragEnd);off(display.scroller,"drop",dragEnd);if(Math.abs(e.clientX-e2.clientX)+Math.abs(e.clientY-e2.clientY)<10){e_preventDefault(e2);if(!modifier){extendSelection(cm.doc,start)}display.input.focus();if(ie&&ie_version==9){setTimeout(function(){document.body.focus();display.input.focus()},20)}}});if(webkit){display.scroller.draggable=true}cm.state.draggingText=dragEnd;if(display.scroller.dragDrop){display.scroller.dragDrop()}on(document,"mouseup",dragEnd);on(display.scroller,"drop",dragEnd)}function leftButtonSelect(cm,e,start,type,addNew){var display=cm.display,doc=cm.doc;e_preventDefault(e);var ourRange,ourIndex,startSel=doc.sel,ranges=startSel.ranges;if(addNew&&!e.shiftKey){ourIndex=doc.sel.contains(start);if(ourIndex>-1){ourRange=ranges[ourIndex]}else{ourRange=new Range(start,start)