tern.js

!function(mod){"object"==typeof exports&&"object"==typeof module?mod(require("../../lib/codemirror")):"function"==typeof define&&define.amd?define(["../../lib/codemirror"],mod):mod(CodeMirror)}(function(CodeMirror){"use strict";CodeMirror.TernServer=function(options){var self=this;this.options=options||{};var plugins=this.options.plugins||(this.options.plugins={});plugins.doc_comment||(plugins.doc_comment=!0),this.docs=Object.create(null),this.options.useWorker?this.server=new WorkerServer(this):this.server=new tern.Server({getFile:function(name,c){return getFile(self,name,c)},async:!0,defs:this.options.defs||[],plugins:plugins}),this.trackChange=function(doc,change){trackChange(self,doc,change)},this.cachedArgHints=null,this.activeArgHints=null,this.jumpStack=[],this.getHint=function(cm,c){return hint(self,cm,c)},this.getHint.async=!0},CodeMirror.TernServer.prototype={addDoc:function(name,doc){var data={doc:doc,name:name,changed:null};return this.server.addFile(name,docValue(this,data)),CodeMirror.on(doc,"change",this.trackChange),this.docs[name]=data},delDoc:function(id){var found=resolveDoc(this,id);found&&(CodeMirror.off(found.doc,"change",this.trackChange),delete this.docs[found.name],this.server.delFile(found.name))},hideDoc:function(id){closeArgHints(this);var found=resolveDoc(this,id);found&&found.changed&&sendDoc(this,found)},complete:function(cm){cm.showHint({hint:this.getHint})},showType:function(cm,pos,c){showContextInfo(this,cm,pos,"type",c)},showDocs:function(cm,pos,c){showContextInfo(this,cm,pos,"documentation",c)},updateArgHints:function(cm){updateArgHints(this,cm)},jumpToDef:function(cm){jumpToDef(this,cm)},jumpBack:function(cm){jumpBack(this,cm)},rename:function(cm){rename(this,cm)},selectName:function(cm){selectName(this,cm)},request:function(cm,query,c,pos){var self=this,doc=findDoc(this,cm.getDoc()),request=buildRequest(this,doc,query,pos),extraOptions=request.query&&this.options.queryOptions&&this.options.queryOptions[request.query.type];if(extraOptions)for(var prop in extraOptions)request.query[prop]=extraOptions[prop];this.server.request(request,function(error,data){!error&&self.options.responseFilter&&(data=self.options.responseFilter(doc,query,request,error,data)),c(error,data)})},destroy:function(){closeArgHints(this),this.worker&&(this.worker.terminate(),this.worker=null)}};var Pos=CodeMirror.Pos,cls="CodeMirror-Tern-",bigDoc=250;function getFile(ts,name,c){var buf=ts.docs[name];buf?c(docValue(ts,buf)):ts.options.getFile?ts.options.getFile(name,c):c(null)}function findDoc(ts,doc,name){for(var n in ts.docs){var cur=ts.docs[n];if(cur.doc==doc)return cur}if(!name)for(var i=0;;++i)if(n="[doc"+(i||"")+"]",!ts.docs[n]){name=n;break}return ts.addDoc(name,doc)}function resolveDoc(ts,id){return"string"==typeof id?ts.docs[id]:(id instanceof CodeMirror&&(id=id.getDoc()),id instanceof CodeMirror.Doc?findDoc(ts,id):void 0)}function trackChange(ts,doc,change){var data=findDoc(ts,doc),argHints=ts.cachedArgHints;argHints&&argHints.doc==doc&&cmpPos(argHints.start,change.to)>=0&&(ts.cachedArgHints=null);var changed=data.changed;null==changed&&(data.changed=changed={from:change.from.line,to:change.from.line});var end=change.from.line+(change.text.length-1);change.from.line<changed.to&&(changed.to=changed.to-(change.to.line-end)),end>=changed.to&&(changed.to=end+1),changed.from>change.from.line&&(changed.from=change.from.line),doc.lineCount()>bigDoc&&change.to-changed.from>100&&setTimeout(function(){data.changed&&data.changed.to-data.changed.from>100&&sendDoc(ts,data)},200)}function sendDoc(ts,doc){ts.server.request({files:[{type:"full",name:doc.name,text:docValue(ts,doc)}]},function(error){error?window.console.error(error):doc.changed=null})}function hint(ts,cm,c){ts.request(cm,{type:"completions",types:!0,docs:!0,urls:!0},function(error,data){if(error)return showError(ts,cm,error);var completions=[],after="",from=data.start,to=data.end;'["'==cm.getRange(Pos(from.line,from.ch-2),from)&&'"]'!=cm.getRange(to,Pos(to.line,to.ch+2))&&(after='"]');for(var i=0;i<data.completions.length;++i){var completion=data.completions[i],className=typeToIcon(completion.type);data.guess&&(className+=" "+cls+"guess"),completions.push({text:completion.name+after,displayText:completion.displayName||completion.name,className:className,data:completion})}var obj={from:from,to:to,list:completions},tooltip=null;CodeMirror.on(obj,"close",function(){remove(tooltip)}),CodeMirror.on(obj,"update",function(){remove(tooltip)}),CodeMirror.on(obj,"select",function(cur,node){remove(tooltip);var content=ts.options.completionTip?ts.options.completionTip(cur.data):cur.data.doc;content&&(tooltip=makeTooltip(node.parentNode.getBoundingClientRect().right+window.pageXOffset,node.getBoundingClientRect().top+window.pageYOffset,content,cm,cls+"hint-doc"))}),c(obj)})}function typeToIcon(type){var suffix;return suffix="?"==type?"unknown":"number"==type||"string"==type||"bool"==type?type:/^fn\(/.test(type)?"fn":/^\[/.test(type)?"array":"object",cls+"completion "+cls+"completion-"+suffix}function showContextInfo(ts,cm,pos,queryName,c){ts.request(cm,queryName,function(error,data){if(error)return showError(ts,cm,error);if(ts.options.typeTip)var tip=ts.options.typeTip(data);else{var tip=elt("span",null,elt("strong",null,data.type||"not found"));if(data.doc&&tip.appendChild(document.createTextNode(" — "+data.doc)),data.url){tip.appendChild(document.createTextNode(" "));var child=tip.appendChild(elt("a",null,"[docs]"));child.href=data.url,child.target="_blank"}}tempTooltip(cm,tip,ts),c&&c()},pos)}function updateArgHints(ts,cm){if(closeArgHints(ts),!cm.somethingSelected()){var state=cm.getTokenAt(cm.getCursor()).state,inner=CodeMirror.innerMode(cm.getMode(),state);if("javascript"==inner.mode.name){var lex=inner.state.lexical;if("call"==lex.info){for(var ch,argPos=lex.pos||0,tabSize=cm.getOption("tabSize"),line=cm.getCursor().line,e=Math.max(0,line-9),found=!1;line>=e;--line){for(var str=cm.getLine(line),extra=0,pos=0;;){var tab=str.indexOf("\t",pos);if(-1==tab)break;extra+=tabSize-(tab+extra)%tabSize-1,pos=tab+1}if(ch=lex.column-extra,"("==str.charAt(ch)){found=!0;break}}if(found){var start=Pos(line,ch),cache=ts.cachedArgHints;if(cache&&cache.doc==cm.getDoc()&&0==cmpPos(start,cache.start))return showArgHints(ts,cm,argPos);ts.request(cm,{type:"type",preferFunction:!0,end:start},function(error,data){!error&&data.type&&/^fn\(/.test(data.type)&&(ts.cachedArgHints={start:start,type:parseFnType(data.type),name:data.exprName||data.name||"fn",guess:data.guess,doc:cm.getDoc()},showArgHints(ts,cm,argPos))})}}}}}function showArgHints(ts,cm,pos){closeArgHints(ts);for(var cache=ts.cachedArgHints,tp=cache.type,tip=elt("span",cache.guess?cls+"fhint-guess":null,elt("span",cls+"fname",cache.name),"("),i=0;i<tp.args.length;++i){i&&tip.appendChild(document.createTextNode(", "));var arg=tp.args[i];tip.appendChild(elt("span",cls+"farg"+(i==pos?" "+cls+"farg-current":""),arg.name||"?")),"?"!=arg.type&&(tip.appendChild(document.createTextNode(": ")),tip.appendChild(elt("span",cls+"type",arg.type)))}tip.appendChild(document.createTextNode(tp.rettype?") -> ":")")),tp.rettype&&tip.appendChild(elt("span",cls+"type",tp.rettype));var place=cm.cursorCoords(null,"page"),tooltip=ts.activeArgHints=makeTooltip(place.right+1,place.bottom,tip,cm);setTimeout(function(){tooltip.clear=onEditorActivity(cm,function(){ts.activeArgHints==tooltip&&closeArgHints(ts)})},20)}function parseFnType(text){var args=[],pos=3;function skipMatching(upto){for(var depth=0,start=pos;;){var next=text.charAt(pos);if(upto.test(next)&&!depth)return text.slice(start,pos);/[{\[\(]/.test(next)?++depth:/[}\]\)]/.test(next)&&--depth,++pos}}if(")"!=text.charAt(pos))for(;;){var name=text.slice(pos).match(/^([^, \(\[\{]+): /);if(name&&(pos+=name[0].length,name=name[1]),args.push({name:name,type:skipMatching(/[\),]/)}),")"==text.charAt(pos))break;pos+=2}var rettype=text.slice(pos).match(/^\) -> (.*)$/);return{args:args,rettype:rettype&&rettype[1]}}function jumpToDef(ts,cm){function inner(varName){var req={type:"definition",variable:varName||null},doc=findDoc(ts,cm.getDoc());ts.server.request(buildRequest(ts,doc,req),function(error,data){if(error)return showError(ts,cm,error);if(data.file||!data.url){if(data.file){var localDoc=ts.docs[data.file],found;if(localDoc&&(found=findContext(localDoc.doc,data)))return ts.jumpStack.push({file:doc.name,start:cm.getCursor("from"),end:cm.getCursor("to")}),void moveTo(ts,doc,localDoc,found.start,found.end)}showError(ts,cm,"Could not find a definition.")}else window.open(data.url)})}atInterestingExpression(cm)?inner():dialog(cm,"Jump to variable",function(name){name&&inner(name)})}function jumpBack(ts,cm){var pos=ts.jumpStack.pop(),doc=pos&&ts.docs[pos.file];doc&&moveTo(ts,findDoc(ts,cm.getDoc()),doc,pos.start,pos.end)}function moveTo(ts,curDoc,doc,start,end){doc.doc.setSelection(start,end),curDoc!=doc&&ts.options.switchToDoc&&(closeArgHints(ts),ts.options.switchToDoc(doc.name,doc.doc))}function findContext(doc,data){for(var before=data.context.slice(0,data.contextOffset).split("\n"),startLine=data.start.line-(before.length-1),start=Pos(startLine,(1==before.length?data.start.ch:doc.getLine(startLine).length)-before[0].length),text=doc.getLine(startLine).slice(start.ch),cur=startLine+1;cur<doc.lineCount()&&text.length<data.context.length;++cur)text+="\n"+doc.getLine(cur);if(text.slice(0,data.context.length)==data.context)return data;for(var cursor=doc.getSearchCursor(data.context,0,!1),nearest,nearestDist=1/0;cursor.findNext();){var from=cursor.from(),dist=1e4*Math.abs(from.line-start.line);dist||(dist=Math.abs(from.ch-start.ch)),dist<nearestDist&&(nearest=from,nearestDist=dist)}if(!nearest)return null;if(1==before.length?nearest.ch+=before[0].length:nearest=Pos(nearest.line+(before.length-1),before[before.length-1].length),data.start.line==data.end.line)var end=Pos(nearest.line,nearest.ch+(data.end.ch-data.start.ch));else var end=Pos(nearest.line+(data.end.line-data.start.line),data.end.ch);return{start:nearest,end:end}}function atInterestingExpression(cm){var pos=cm.getCursor("end"),tok=cm.getTokenAt(pos);return!(tok.start<pos.ch&&"comment"==tok.type)&&/[\w)\]]/.test(cm.getLine(pos.line).slice(Math.max(pos.ch-1,0),pos.ch+1))}function rename(ts,cm){var token=cm.getTokenAt(cm.getCursor());if(!/\w/.test(token.string))return showError(ts,cm,"Not at a variable");dialog(cm,"New name for "+token.string,function(newName){ts.request(cm,{type:"rename",newName:newName,fullDocs:!0},function(error,data){if(error)return showError(ts,cm,error);applyChanges(ts,data.changes)})})}function selectName(ts,cm){var name=findDoc(ts,cm.doc).name;ts.request(cm,{type:"refs"},function(error,data){if(error)return showError(ts,cm,error);for(var ranges=[],cur=0,curPos=cm.getCursor(),i=0;i<data.refs.length;i++){var ref=data.refs[i];ref.file==name&&(ranges.push({anchor:ref.start,head:ref.end}),cmpPos(curPos,ref.start)>=0&&cmpPos(curPos,ref.end)<=0&&(cur=ranges.length-1))}cm.setSelections(ranges,cur)})}var nextChangeOrig=0;function applyChanges(ts,changes){for(var perFile=Object.create(null),i=0;i<changes.length;++i){var ch;(perFile[(ch=changes[i]).file]||(perFile[ch.file]=[])).push(ch)}for(var file in perFile){var known=ts.docs[file],chs=perFile[file];if(known){chs.sort(function(a,b){return cmpPos(b.start,a.start)});for(var origin="*rename"+ ++nextChangeOrig,i=0;i<chs.length;++i){var ch=chs[i];known.doc.replaceRange(ch.text,ch.start,ch.end,origin)}}}}function buildRequest(ts,doc,query,pos){var files=[],offsetLines=0,allowFragments=!query.fullDocs;allowFragments||delete query.fullDocs,"string"==typeof query&&(query={type:query}),query.lineCharPositions=!0,null==query.end&&(query.end=pos||doc.doc.getCursor("end"),doc.doc.somethingSelected()&&(query.start=doc.doc.getCursor("start")));var startPos=query.start||query.end;if(doc.changed)if(doc.doc.lineCount()>bigDoc&&!1!==allowFragments&&doc.changed.to-doc.changed.from<100&&doc.changed.from<=startPos.line&&doc.changed.to>query.end.line){files.push(getFragmentAround(doc,startPos,query.end)),query.file="#0";var offsetLines=files[0].offsetLines;null!=query.start&&(query.start=Pos(query.start.line- -offsetLines,query.start.ch)),query.end=Pos(query.end.line-offsetLines,query.end.ch)}else files.push({type:"full",name:doc.name,text:docValue(ts,doc)}),query.file=doc.name,doc.changed=null;else query.file=doc.name;for(var name in ts.docs){var cur=ts.docs[name];cur.changed&&cur!=doc&&(files.push({type:"full",name:cur.name,text:docValue(ts,cur)}),cur.changed=null)}return{query:query,files:files}}function getFragmentAround(data,start,end){for(var doc=data.doc,minIndent=null,minLine=null,endLine,tabSize=4,p=start.line-1,min=Math.max(0,p-50);p>=min;--p){var line=doc.getLine(p),fn;if(!(line.search(/\bfunction\b/)<0)){var indent=CodeMirror.countColumn(line,null,4);null!=minIndent&&minIndent<=indent||(minIndent=indent,minLine=p)}}null==minLine&&(minLine=min);var max=Math.min(doc.lastLine(),end.line+20);if(null==minIndent||minIndent==CodeMirror.countColumn(doc.getLine(start.line),null,4))endLine=max;else for(endLine=end.line+1;endLine<max;++endLine){var indent;if((indent=CodeMirror.countColumn(doc.getLine(endLine),null,4))<=minIndent)break}var from=Pos(minLine,0);return{type:"part",name:data.name,offsetLines:from.line,text:doc.getRange(from,Pos(endLine,end.line==endLine?null:0))}}var cmpPos=CodeMirror.cmpPos;function elt(tagname,cls){var e=document.createElement(tagname);cls&&(e.className=cls);for(var i=2;i<arguments.length;++i){var elt=arguments[i];"string"==typeof elt&&(elt=document.createTextNode(elt)),e.appendChild(elt)}return e}function dialog(cm,text,f){if(cm.openDialog){var fragment=document.createDocumentFragment();fragment.appendChild(document.createTextNode(text+": "));var input=document.createElement("input");input.type="text",fragment.appendChild(input),cm.openDialog(fragment,f)}else f(prompt(text,""))}function tempTooltip(cm,content,ts){cm.state.ternTooltip&&remove(cm.state.ternTooltip);var where=cm.cursorCoords(),tip=cm.state.ternTooltip=makeTooltip(where.right+1,where.bottom,content,cm);function maybeClear(){old=!0,mouseOnTip||clear()}function clear(){cm.state.ternTooltip=null,tip.parentNode&&fadeOut(tip),clearActivity()}var mouseOnTip=!1,old=!1;CodeMirror.on(tip,"mousemove",function(){mouseOnTip=!0}),CodeMirror.on(tip,"mouseout",function(e){var related=e.relatedTarget||e.toElement;related&&CodeMirror.contains(tip,related)||(old?clear():mouseOnTip=!1)}),setTimeout(maybeClear,ts.options.hintDelay?ts.options.hintDelay:1700);var clearActivity=onEditorActivity(cm,clear)}function onEditorActivity(cm,f){return cm.on("cursorActivity",f),cm.on("blur",f),cm.on("scroll",f),cm.on("setDoc",f),function(){cm.off("cursorActivity",f),cm.off("blur",f),cm.off("scroll",f),cm.off("setDoc",f)}}function makeTooltip(x,y,content,cm,className){var node=elt("div",cls+"tooltip "+(className||""),content),container;node.style.left=x+"px",node.style.top=y+"px",(((cm.options||{}).hintOptions||{}).container||document.body).appendChild(node);var pos=cm.cursorCoords(),winW=window.innerWidth,winH=window.innerHeight,box=node.getBoundingClientRect(),hints=document.querySelector(".CodeMirror-hints"),overlapY=box.bottom-winH,overlapX=box.right-winW;if(hints&&overlapX>0){node.style.left=0;var box=node.getBoundingClientRect();node.style.left=(x=x-hints.offsetWidth-box.width)+"px",overlapX=box.right-winW}if(overlapY>0){var height=box.bottom-box.top,curTop;pos.top-(pos.bottom-box.top)-height>0?node.style.top=pos.top-height+"px":height>winH&&(node.style.height=winH-5+"px",node.style.top=pos.bottom-box.top+"px")}return overlapX>0&&(box.right-box.left>winW&&(node.style.width=winW-5+"px",overlapX-=box.right-box.left-winW),node.style.left=x-overlapX+"px"),node}function remove(node){var p=node&&node.parentNode;p&&p.removeChild(node)}function fadeOut(tooltip){tooltip.style.opacity="0",setTimeout(function(){remove(tooltip)},1100)}function showError(ts,cm,msg){ts.options.showError?ts.options.showError(cm,msg):tempTooltip(cm,String(msg),ts)}function closeArgHints(ts){ts.activeArgHints&&(ts.activeArgHints.clear&&ts.activeArgHints.clear(),remove(ts.activeArgHints),ts.activeArgHints=null)}function docValue(ts,doc){var val=doc.doc.getValue();return ts.options.fileFilter&&(val=ts.options.fileFilter(val,doc.name,doc.doc)),val}function WorkerServer(ts){var worker=ts.worker=new Worker(ts.options.workerScript);worker.postMessage({type:"init",defs:ts.options.defs,plugins:ts.options.plugins,scripts:ts.options.workerDeps});var msgId=0,pending={};function send(data,c){c&&(data.id=++msgId,pending[msgId]=c),worker.postMessage(data)}worker.onmessage=function(e){var data=e.data;"getFile"==data.type?getFile(ts,data.name,function(err,text){send({type:"getFile",err:String(err),text:text,id:data.id})}):"debug"==data.type?window.console.log(data.message):data.id&&pending[data.id]&&(pending[data.id](data.err,data.body),delete pending[data.id])},worker.onerror=function(e){for(var id in pending)pending[id](e);pending={}},this.addFile=function(name,text){send({type:"add",name:name,text:text})},this.delFile=function(name){send({type:"del",name:name})},this.request=function(body,c){send({type:"req",body:body},c)}}});