User:Zocky/LinkComplete.js
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// <pre><nowiki> // Auto complete for links in the editbox GPL, (c) 2006, [[en:User:Zocky]] // type [[foo and press ctrl+space // should work in most browsers // hook addOnloadHook(linkCompleteInit); //init function linkCompleteInit() { if ($('wpTextbox1')) { eventAddListener($('wpTextbox1'),'keydown',linkCompleteKeyHandler); eventAddListener($('wpTextbox1'),'keyup',linkCompleteKeyIgnorer1); eventAddListener($('wpTextbox1'),'keypress',linkCompleteKeyIgnorer2); linkCompleteRegExp = window['linkCompleteTriggers'] || [ /\[\[([^\[\]\|\n]*?)$/ ]; } } // a bunch of globals [[a var linkCompleteStatus='idle'; var linkCompleteFind=''; var linkCompleteMatches=[]; var linkCompleteNextPage; var linkCompleteNextMatch=0; var linkCompleteStart=0; var linkCompleteTarget=null; var linkCompleteRegExp=[]; // helpers function linkCompleteInsert(s) { var top=linkCompleteTarget.scrollTop; linkCompleteTarget.value = linkCompleteTarget.value.substr(0,linkCompleteStart) + s + linkCompleteTarget.value.substr(selectionGetStart(linkCompleteTarget)); linkCompleteTarget.scrollTop=top; selectionSet(linkCompleteTarget, linkCompleteStart+s.length,linkCompleteStart+s.length); } function linkCompleteInsertMatch() { if (linkCompleteNextMatch<linkCompleteMatches.length) { linkCompleteInsert(linkCompleteMatches[linkCompleteNextMatch]); linkCompleteNextMatch++; return true; } else { return false; } } function linkCompleteGetMatches(from) { linkCompleteStatus='waiting'; mwQueryPhp(linkCompleteLoaded,"allpages","apfrom", from, "aplimit","50","apfilterredir","nonredirects","apnamespace",window.linkCompleteNamespace || 0); linkCompleteInsert(linkCompleteFind+'...'); } function linkCompleteReset() { linkCompleteStatus='idle'; linkCompleteInsert(linkCompleteFind); linkCompleteMatches=[]; } // main function function linkCompleteKeyIgnorer1(e) { keynum = eventKeyCode(e); if (keynum==9) eventStop(e); } function linkCompleteKeyIgnorer2(e) { keynum = e.charCode || e.keyCode; if (keynum==9) eventStop(e); } function linkCompleteKeyHandler(e) { keynum = eventKeyCode(e); target=eventTarget(e); if ((keynum==9 || e.ctrlKey && keynum==32) && selectionGetStart(target)==selectionGetEnd(target)) { if (target!=linkCompleteTarget) { linkCompleteTarget=target; linkCompleteStatus='idle'; } switch(linkCompleteStatus) { case 'idle': var find; for (var i in linkCompleteRegExp) { find = (target.value.substr(0,selectionGetStart(target)).match(linkCompleteRegExp[i]) || [])[1]; if (find) break; } if (find) { linkCompleteMatches=[]; linkCompleteNextMatch=0; linkCompleteFind=find; linkCompleteStart=selectionGetStart(target)-find.length; linkCompleteGetMatches(find.capitalize()); } break; case 'waiting': break; case 'loaded': if(linkCompleteNextMatch<linkCompleteMatches.length) { linkCompleteInsertMatch() || linkCompleteReset(); } else { if (linkCompleteNextPage) { linkCompleteGetMatches(linkCompleteNextPage); } else { linkCompleteNextMatch=0; linkCompleteInsertMatch() || linkCompleteReset(); } } } eventStop(e); } else { linkCompleteStatus == 'waiting' && linkCompleteReset(); linkCompleteStatus = 'idle'; } } // JSON callback function linkCompleteLoaded(obj) { if (obj) { if (linkCompleteStatus=='waiting') { for (var i in obj.query.allpages) { page=obj.query.allpages[i]; if ( page.title && (page.ns && page.title.replace(/^.*?:/,'').substr(0,linkCompleteFind.length) == linkCompleteFind.capitalize()) || page.title.substr(0,linkCompleteFind.length) == linkCompleteFind.capitalize() ) { linkCompleteMatches[linkCompleteMatches.length] = page.ns ? page.title : linkCompleteFind + page.title.substr(linkCompleteFind.length); } } linkCompleteNextPage = obj['query-continue'] ? obj['query-continue'].allpages.apfrom.substr(0,linkCompleteFind.length) == linkCompleteFind.capitalize() ? obj['query-continue'].allpages.apfrom : false : false; linkCompleteInsertMatch() && (linkCompleteStatus='loaded') || linkCompleteReset(); } } else { linkCompleteReset(); } } // query.php wrapper function mwQueryPhp (cb,what) { var x = window.XMLHttpRequest ? new XMLHttpRequest() : window.ActiveXObject ? new ActiveXObject("Microsoft.XMLHTTP") : false; if (mwQueryPhp.arguments.length>1 && x) { var url= wgScriptPath +"/api.php?format=json&action=query&list="+what; for (var i=2; i < mwQueryPhp.arguments.length; i+=2 ) { url=url+"&"+escape(mwQueryPhp.arguments[i]) + "=" + escape(mwQueryPhp.arguments[i+1]); } x.onreadystatechange=function() { if (x.readyState==4) return x.status==200 ? cb(x.responseText.parseJSON()) : cb(false); }; x.open("GET",url,true); x.setRequestHeader('Accept','text/*'); x.send(null); return true; } else return false; } // cross-browser event functions function eventAddListener (element,event,handler) { if (element.addEventListener) element.addEventListener(event,handler,false) else element.attachEvent('on'+event,handler); } function eventRemoveListener (element, event, handler) { if (element.removeEventListener) element.removeEventListener(event,handler,false) else element.detachEvent('on'+event,handler); } function eventStop(event) { if (event.preventDefault) { event.preventDefault(); event.stopPropagation(); } else { event.returnValue = false; event.cancelBubble = true; } } function eventTarget(event) { return event.target || event.srcElement; } function eventKeyCode(event) { return event.preventDefault ? event.which : event.keyCode ; } function $(id) { return document.getElementById(id); } //from http://www.json.org/json.js String.prototype.parseJSON = function () { try { return !(/[^,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]/.test( this.replace(/"(\\.|[^"\\])*"/g, ''))) && eval('(' + this + ')'); } catch (e) { return false; } }; //"foo".capitalize() -> "Foo" String.prototype.capitalize = function () { return this.substring(0,1).toUpperCase()+this.substring(1)}; function selectionSet(input, start, end) { if (input.setSelectionRange) { input.setSelectionRange(start,end) input.selectionEnd=end; } else { var range = input.createTextRange(); range.collapse(true); range.moveStart("character", start); range.moveEnd("character", end - start); range.select(); } }; function selectionGetStart(input) { if (input.setSelectionRange) { return input.selectionStart; } else { var range = document.selection.createRange(); var isCollapsed = range.compareEndPoints("StartToEnd", range) == 0; if (!isCollapsed)range.collapse(true); var b = range.getBookmark(); return b.charCodeAt(2) - 2; } }; function selectionGetEnd(input) { if (input.setSelectionRange) { return input.selectionEnd; } else { var range = document.selection.createRange(); var isCollapsed = range.compareEndPoints("StartToEnd", range) == 0; if (!isCollapsed)range.collapse(false); var b = range.getBookmark(); return b.charCodeAt(2) - 2; } }; //<nowiki></pre>