Initial patch.
[vuplus_webkit] / Websites / webkit.org / blog / wp-includes / js / codepress / engines / opera.js
diff --git a/Websites/webkit.org/blog/wp-includes/js/codepress/engines/opera.js b/Websites/webkit.org/blog/wp-includes/js/codepress/engines/opera.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>
+ *
+ * Contributors :
+ *
+ *     Michael Hurni <michael.hurni@gmail.com>
+ *
+ * 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;
+               chars = '|32|46|62|'; // charcodes that trigger syntax highlighting
+               cc = '\u2009'; // control char
+               editor = document.getElementsByTagName('body')[0];
+               document.designMode = 'on';
+               document.addEventListener('keyup', this.keyHandler, true);
+               window.addEventListener('scroll', function() { if(!CodePress.scrolling) CodePress.syntaxHighlight('scroll') }, false);
+               completeChars = this.getCompleteChars();
+//             CodePress.syntaxHighlight('init');
+       },
+
+       // treat key bindings
+       keyHandler : function(evt) {
+       keyCode = evt.keyCode;  
+               charCode = evt.charCode;
+
+               if((evt.ctrlKey || evt.metaKey) && evt.shiftKey && charCode!=90)  { // shortcuts = ctrl||appleKey+shift+key!=z(undo) 
+                       CodePress.shortcuts(charCode?charCode:keyCode);
+               }
+               else if(completeChars.indexOf('|'+String.fromCharCode(charCode)+'|')!=-1 && CodePress.autocomplete) { // auto complete
+                       CodePress.complete(String.fromCharCode(charCode));
+               }
+           else if(chars.indexOf('|'+charCode+'|')!=-1||keyCode==13) { // syntax highlighting
+                       CodePress.syntaxHighlight('generic');
+               }
+               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(keyCode==86 && evt.ctrlKey)  { // paste
+                       // TODO: pasted text should be parsed and highlighted
+               }
+       },
+
+       // put cursor back to its original position after every parsing
+       findString : function() {
+               var sel = window.getSelection();
+               var range = window.document.createRange();
+               var span = window.document.getElementsByTagName('span')[0];
+                       
+               range.selectNode(span);
+               sel.removeAllRanges();
+               sel.addRange(range);
+               span.parentNode.removeChild(span);
+               //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('<SPAN>');
+                       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;
+               }
+       },
+       
+       // syntax highlighting parser
+       syntaxHighlight : function(flag) {
+               //if(document.designMode=='off') document.designMode='on'
+               if(flag!='init') {
+                       var span = document.createElement('span');
+                       window.getSelection().getRangeAt(0).insertNode(span);
+               }
+
+               o = editor.innerHTML;
+//             o = o.replace(/<br>/g,'\r\n');
+//             o = o.replace(/<(b|i|s|u|a|em|tt|ins|big|cite|strong)?>/g,'');
+               //alert(o)
+               o = o.replace(/<(?!span|\/span|br).*?>/gi,'');
+//             alert(o)
+//             x = o;
+               x = z = this.split(o,flag);
+               //alert(z)
+//             x = x.replace(/\r\n/g,'<br>');
+               x = x.replace(/\t/g, '        ');
+
+
+               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,'&lt;');
+                               content = content.replace(/>/g,'&gt;');
+                               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+'|';
+       },
+
+       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() {
+               var code = editor.innerHTML;
+               code = code.replace(/<br>/g,'\n');
+               code = code.replace(/\u2009/g,'');
+               code = code.replace(/<.*?>/g,'');
+               code = code.replace(/&lt;/g,'<');
+               code = code.replace(/&gt;/g,'>');
+               code = code.replace(/&amp;/gi,'&');
+               return code;
+       },
+
+       // put code inside editor
+       setCode : function() {
+               var code = arguments[0];
+               code = code.replace(/\u2009/gi,'');
+               code = code.replace(/&/gi,'&amp;');
+               code = code.replace(/</g,'&lt;');
+        code = code.replace(/>/g,'&gt;');
+               editor.innerHTML = code;
+       },
+
+       // undo and redo methods
+       actions : {
+               pos : -1, // actual history position
+               history : [], // history vector
+               
+               undo : function() {
+                       if(editor.innerHTML.indexOf(cc)==-1){
+                               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];
+                       CodePress.findString();
+               },
+               
+               redo : function() {
+                       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);