ref: master
public/javascripts/codepress/engines/gecko.js
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/* * CodePress - Real Time Syntax Highlighting Editor written in JavaScript - http://codepress.org/ * * Copyright (C) 2007 Fernando M.A.d.S. <fermads@gmail.com> * * Developers: * Fernando M.A.d.S. <fermads@gmail.com> * Michael Hurni <michael.hurni@gmail.com> * Contributors: * Martin D. Kirk * * This program is free software; you can redistribute it and/or modify it under the terms of the * GNU Lesser General Public License as published by the Free Software Foundation. * * Read the full licence: http://www.opensource.org/licenses/lgpl-license.php */ CodePress = { scrolling : false, autocomplete : true, // set initial vars and start sh initialize : function() { if(typeof(editor)=='undefined' && !arguments[0]) return; body = document.getElementsByTagName('body')[0]; body.innerHTML = body.innerHTML.replace(/\n/g,""); chars = '|32|46|62|8|'; // charcodes that trigger syntax highlighting cc = '\u2009'; // carret char editor = document.getElementsByTagName('pre')[0]; document.designMode = 'on'; document.addEventListener('keypress', this.keyHandler, true); window.addEventListener('scroll', function() { if(!CodePress.scrolling) CodePress.syntaxHighlight('scroll') }, false); completeChars = this.getCompleteChars(); completeEndingChars = this.getCompleteEndingChars(); }, // treat key bindings keyHandler : function(evt) { keyCode = evt.keyCode; charCode = evt.charCode; fromChar = String.fromCharCode(charCode); if((evt.ctrlKey || evt.metaKey) && evt.shiftKey && charCode!=90) { // shortcuts = ctrl||appleKey+shift+key!=z(undo) CodePress.shortcuts(charCode?charCode:keyCode); } else if( (completeEndingChars.indexOf('|'+fromChar+'|')!= -1 || completeChars.indexOf('|'+fromChar+'|')!=-1) && CodePress.autocomplete) { // auto complete if(!CodePress.completeEnding(fromChar)) CodePress.complete(fromChar); } else if(chars.indexOf('|'+charCode+'|')!=-1||keyCode==13) { // syntax highlighting top.setTimeout(function(){CodePress.syntaxHighlight('generic');},100); } else if(keyCode==9 || evt.tabKey) { // snippets activation (tab) CodePress.snippets(evt); } else if(keyCode==46||keyCode==8) { // save to history when delete or backspace pressed CodePress.actions.history[CodePress.actions.next()] = editor.innerHTML; } else if((charCode==122||charCode==121||charCode==90) && evt.ctrlKey) { // undo and redo (charCode==121||evt.shiftKey) ? CodePress.actions.redo() : CodePress.actions.undo(); evt.preventDefault(); } else if(charCode==118 && evt.ctrlKey) { // handle paste top.setTimeout(function(){CodePress.syntaxHighlight('generic');},100); } else if(charCode==99 && evt.ctrlKey) { // handle cut //alert(window.getSelection().getRangeAt(0).toString().replace(/\t/g,'FFF')); } }, // put cursor back to its original position after every parsing findString : function() { if(self.find(cc)) window.getSelection().getRangeAt(0).deleteContents(); }, // split big files, highlighting parts of it split : function(code,flag) { if(flag=='scroll') { this.scrolling = true; return code; } else { this.scrolling = false; mid = code.indexOf(cc); if(mid-2000<0) {ini=0;end=4000;} else if(mid+2000>code.length) {ini=code.length-4000;end=code.length;} else {ini=mid-2000;end=mid+2000;} code = code.substring(ini,end); return code; } }, getEditor : function() { if(!document.getElementsByTagName('pre')[0]) { body = document.getElementsByTagName('body')[0]; if(!body.innerHTML) return body; if(body.innerHTML=="<br>") body.innerHTML = "<pre> </pre>"; else body.innerHTML = "<pre>"+body.innerHTML+"</pre>"; } return document.getElementsByTagName('pre')[0]; }, // syntax highlighting parser syntaxHighlight : function(flag) { //if(document.designMode=='off') document.designMode='on' if(flag != 'init') { window.getSelection().getRangeAt(0).insertNode(document.createTextNode(cc));} editor = CodePress.getEditor(); o = editor.innerHTML; o = o.replace(/<br>/g,'\n'); o = o.replace(/<.*?>/g,''); x = z = this.split(o,flag); x = x.replace(/\n/g,'<br>'); if(arguments[1]&&arguments[2]) x = x.replace(arguments[1],arguments[2]); for(i=0;i<Language.syntax.length;i++) x = x.replace(Language.syntax[i].input,Language.syntax[i].output); editor.innerHTML = this.actions.history[this.actions.next()] = (flag=='scroll') ? x : o.split(z).join(x); if(flag!='init') this.findString(); }, getLastWord : function() { var rangeAndCaret = CodePress.getRangeAndCaret(); words = rangeAndCaret[0].substring(rangeAndCaret[1]-40,rangeAndCaret[1]); words = words.replace(/[\s\n\r\);\W]/g,'\n').split('\n'); return words[words.length-1].replace(/[\W]/gi,'').toLowerCase(); }, snippets : function(evt) { var snippets = Language.snippets; var trigger = this.getLastWord(); for (var i=0; i<snippets.length; i++) { if(snippets[i].input == trigger) { var content = snippets[i].output.replace(/</g,'<'); content = content.replace(/>/g,'>'); if(content.indexOf('$0')<0) content += cc; else content = content.replace(/\$0/,cc); content = content.replace(/\n/g,'<br>'); var pattern = new RegExp(trigger+cc,'gi'); evt.preventDefault(); // prevent the tab key from being added this.syntaxHighlight('snippets',pattern,content); } } }, readOnly : function() { document.designMode = (arguments[0]) ? 'off' : 'on'; }, complete : function(trigger) { window.getSelection().getRangeAt(0).deleteContents(); var complete = Language.complete; for (var i=0; i<complete.length; i++) { if(complete[i].input == trigger) { var pattern = new RegExp('\\'+trigger+cc); var content = complete[i].output.replace(/\$0/g,cc); parent.setTimeout(function () { CodePress.syntaxHighlight('complete',pattern,content)},0); // wait for char to appear on screen } } }, getCompleteChars : function() { var cChars = ''; for(var i=0;i<Language.complete.length;i++) cChars += '|'+Language.complete[i].input; return cChars+'|'; }, getCompleteEndingChars : function() { var cChars = ''; for(var i=0;i<Language.complete.length;i++) cChars += '|'+Language.complete[i].output.charAt(Language.complete[i].output.length-1); return cChars+'|'; }, completeEnding : function(trigger) { var range = window.getSelection().getRangeAt(0); try { range.setEnd(range.endContainer, range.endOffset+1) } catch(e) { return false; } var next_character = range.toString() range.setEnd(range.endContainer, range.endOffset-1) if(next_character != trigger) return false; else { range.setEnd(range.endContainer, range.endOffset+1) range.deleteContents(); return true; } }, shortcuts : function() { var cCode = arguments[0]; if(cCode==13) cCode = '[enter]'; else if(cCode==32) cCode = '[space]'; else cCode = '['+String.fromCharCode(charCode).toLowerCase()+']'; for(var i=0;i<Language.shortcuts.length;i++) if(Language.shortcuts[i].input == cCode) this.insertCode(Language.shortcuts[i].output,false); }, getRangeAndCaret : function() { var range = window.getSelection().getRangeAt(0); var range2 = range.cloneRange(); var node = range.endContainer; var caret = range.endOffset; range2.selectNode(node); return [range2.toString(),caret]; }, insertCode : function(code,replaceCursorBefore) { var range = window.getSelection().getRangeAt(0); var node = window.document.createTextNode(code); var selct = window.getSelection(); var range2 = range.cloneRange(); // Insert text at cursor position selct.removeAllRanges(); range.deleteContents(); range.insertNode(node); // Move the cursor to the end of text range2.selectNode(node); range2.collapse(replaceCursorBefore); selct.removeAllRanges(); selct.addRange(range2); }, // get code from editor getCode : function() { if(!document.getElementsByTagName('pre')[0] || editor.innerHTML == '') editor = CodePress.getEditor(); var code = editor.innerHTML; code = code.replace(/<br>/g,'\n'); code = code.replace(/\u2009/g,''); code = code.replace(/<.*?>/g,''); code = code.replace(/</g,'<'); code = code.replace(/>/g,'>'); code = code.replace(/&/gi,'&'); return code; }, // put code inside editor setCode : function() { var code = arguments[0]; code = code.replace(/\u2009/gi,''); code = code.replace(/&/gi,'&'); code = code.replace(/</g,'<'); code = code.replace(/>/g,'>'); editor.innerHTML = code; if (code == '') document.getElementsByTagName('body')[0].innerHTML = ''; }, // undo and redo methods actions : { pos : -1, // actual history position history : [], // history vector undo : function() { editor = CodePress.getEditor(); if(editor.innerHTML.indexOf(cc)==-1){ if(editor.innerHTML != " ") window.getSelection().getRangeAt(0).insertNode(document.createTextNode(cc)); this.history[this.pos] = editor.innerHTML; } this.pos --; if(typeof(this.history[this.pos])=='undefined') this.pos ++; editor.innerHTML = this.history[this.pos]; if(editor.innerHTML.indexOf(cc)>-1) editor.innerHTML+=cc; CodePress.findString(); }, redo : function() { // editor = CodePress.getEditor(); this.pos++; if(typeof(this.history[this.pos])=='undefined') this.pos--; editor.innerHTML = this.history[this.pos]; CodePress.findString(); }, next : function() { // get next vector position and clean old ones if(this.pos>20) this.history[this.pos-21] = undefined; return ++this.pos; } } } Language={}; window.addEventListener('load', function() { CodePress.initialize('new'); }, true); |