mirror of
https://github.com/WordPress/WordPress.git
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git-svn-id: http://svn.automattic.com/wordpress/trunk@10614 1a063a9b-81f0-0310-95a4-ce76da25c4cd
304 lines
9.4 KiB
JavaScript
304 lines
9.4 KiB
JavaScript
/*
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* CodePress - Real Time Syntax Highlighting Editor written in JavaScript - http://codepress.org/
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*
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* Copyright (C) 2007 Fernando M.A.d.S. <fermads@gmail.com>
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*
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* Developers:
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* Fernando M.A.d.S. <fermads@gmail.com>
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* Michael Hurni <michael.hurni@gmail.com>
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* Contributors:
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* Martin D. Kirk
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*
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* This program is free software; you can redistribute it and/or modify it under the terms of the
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* GNU Lesser General Public License as published by the Free Software Foundation.
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*
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* Read the full licence: http://www.opensource.org/licenses/lgpl-license.php
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*/
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CodePress = {
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scrolling : false,
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autocomplete : true,
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// set initial vars and start sh
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initialize : function() {
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if(typeof(editor)=='undefined' && !arguments[0]) return;
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chars = '|32|46|62|'; // charcodes that trigger syntax highlighting
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cc = '\u2009'; // carret char
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editor = document.getElementsByTagName('pre')[0];
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editor.contentEditable = 'true';
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document.getElementsByTagName('body')[0].onfocus = function() {editor.focus();}
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document.attachEvent('onkeydown', this.metaHandler);
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document.attachEvent('onkeypress', this.keyHandler);
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window.attachEvent('onscroll', function() { if(!CodePress.scrolling) setTimeout(function(){CodePress.syntaxHighlight('scroll')},1)});
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completeChars = this.getCompleteChars();
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completeEndingChars = this.getCompleteEndingChars();
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setTimeout(function() { window.scroll(0,0) },50); // scroll IE to top
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},
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// treat key bindings
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keyHandler : function(evt) {
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charCode = evt.keyCode;
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fromChar = String.fromCharCode(charCode);
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if( (completeEndingChars.indexOf('|'+fromChar+'|')!= -1 || completeChars.indexOf('|'+fromChar+'|')!=-1 )&& CodePress.autocomplete) { // auto complete
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if(!CodePress.completeEnding(fromChar))
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CodePress.complete(fromChar);
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}
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else if(chars.indexOf('|'+charCode+'|')!=-1||charCode==13) { // syntax highlighting
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CodePress.syntaxHighlight('generic');
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}
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},
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metaHandler : function(evt) {
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keyCode = evt.keyCode;
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if(keyCode==9 || evt.tabKey) {
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CodePress.snippets();
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}
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else if((keyCode==122||keyCode==121||keyCode==90) && evt.ctrlKey) { // undo and redo
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(keyCode==121||evt.shiftKey) ? CodePress.actions.redo() : CodePress.actions.undo();
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evt.returnValue = false;
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}
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else if(keyCode==34||keyCode==33) { // handle page up/down for IE
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self.scrollBy(0, (keyCode==34) ? 200 : -200);
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evt.returnValue = false;
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}
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else if(keyCode==46||keyCode==8) { // save to history when delete or backspace pressed
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CodePress.actions.history[CodePress.actions.next()] = editor.innerHTML;
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}
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else if((evt.ctrlKey || evt.metaKey) && evt.shiftKey && keyCode!=90) { // shortcuts = ctrl||appleKey+shift+key!=z(undo)
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CodePress.shortcuts(keyCode);
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evt.returnValue = false;
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}
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else if(keyCode==86 && evt.ctrlKey) { // handle paste
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window.clipboardData.setData('Text',window.clipboardData.getData('Text').replace(/\t/g,'\u2008'));
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top.setTimeout(function(){CodePress.syntaxHighlight('paste');},10);
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}
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else if(keyCode==67 && evt.ctrlKey) { // handle cut
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// window.clipboardData.setData('Text',x[0]);
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// code = window.clipboardData.getData('Text');
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}
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},
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// put cursor back to its original position after every parsing
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findString : function() {
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range = self.document.body.createTextRange();
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if(range.findText(cc)){
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range.select();
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range.text = '';
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}
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},
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// split big files, highlighting parts of it
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split : function(code,flag) {
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if(flag=='scroll') {
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this.scrolling = true;
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return code;
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}
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else {
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this.scrolling = false;
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mid = code.indexOf(cc);
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if(mid-2000<0) {ini=0;end=4000;}
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else if(mid+2000>code.length) {ini=code.length-4000;end=code.length;}
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else {ini=mid-2000;end=mid+2000;}
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code = code.substring(ini,end);
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return code.substring(code.indexOf('<P>'),code.lastIndexOf('</P>')+4);
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}
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},
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// syntax highlighting parser
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syntaxHighlight : function(flag) {
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if(flag!='init') document.selection.createRange().text = cc;
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o = editor.innerHTML;
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if(flag=='paste') { // fix pasted text
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o = o.replace(/<BR>/g,'\r\n');
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o = o.replace(/\u2008/g,'\t');
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}
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o = o.replace(/<P>/g,'\n');
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o = o.replace(/<\/P>/g,'\r');
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o = o.replace(/<.*?>/g,'');
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o = o.replace(/ /g,'');
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o = '<PRE><P>'+o+'</P></PRE>';
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o = o.replace(/\n\r/g,'<P></P>');
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o = o.replace(/\n/g,'<P>');
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o = o.replace(/\r/g,'<\/P>');
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o = o.replace(/<P>(<P>)+/,'<P>');
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o = o.replace(/<\/P>(<\/P>)+/,'</P>');
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o = o.replace(/<P><\/P>/g,'<P><BR/></P>');
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x = z = this.split(o,flag);
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if(arguments[1]&&arguments[2]) x = x.replace(arguments[1],arguments[2]);
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for(i=0;i<Language.syntax.length;i++)
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x = x.replace(Language.syntax[i].input,Language.syntax[i].output);
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editor.innerHTML = this.actions.history[this.actions.next()] = (flag=='scroll') ? x : o.replace(z,x);
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if(flag!='init') this.findString();
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},
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snippets : function(evt) {
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var snippets = Language.snippets;
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var trigger = this.getLastWord();
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for (var i=0; i<snippets.length; i++) {
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if(snippets[i].input == trigger) {
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var content = snippets[i].output.replace(/</g,'<');
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content = content.replace(/>/g,'>');
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if(content.indexOf('$0')<0) content += cc;
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else content = content.replace(/\$0/,cc);
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content = content.replace(/\n/g,'</P><P>');
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var pattern = new RegExp(trigger+cc,"gi");
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this.syntaxHighlight('snippets',pattern,content);
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}
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}
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},
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readOnly : function() {
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editor.contentEditable = (arguments[0]) ? 'false' : 'true';
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},
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complete : function(trigger) {
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var complete = Language.complete;
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for (var i=0; i<complete.length; i++) {
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if(complete[i].input == trigger) {
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var pattern = new RegExp('\\'+trigger+cc);
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var content = complete[i].output.replace(/\$0/g,cc);
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setTimeout(function () { CodePress.syntaxHighlight('complete',pattern,content)},0); // wait for char to appear on screen
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}
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}
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},
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getCompleteChars : function() {
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var cChars = '';
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for(var i=0;i<Language.complete.length;i++)
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cChars += '|'+Language.complete[i].input;
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return cChars+'|';
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},
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getCompleteEndingChars : function() {
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var cChars = '';
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for(var i=0;i<Language.complete.length;i++)
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cChars += '|'+Language.complete[i].output.charAt(Language.complete[i].output.length-1);
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return cChars+'|';
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},
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completeEnding : function(trigger) {
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var range = document.selection.createRange();
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try {
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range.moveEnd('character', 1)
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}
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catch(e) {
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return false;
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}
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var next_character = range.text
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range.moveEnd('character', -1)
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if(next_character != trigger ) return false;
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else {
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range.moveEnd('character', 1)
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range.text=''
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return true;
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}
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},
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shortcuts : function() {
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var cCode = arguments[0];
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if(cCode==13) cCode = '[enter]';
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else if(cCode==32) cCode = '[space]';
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else cCode = '['+String.fromCharCode(keyCode).toLowerCase()+']';
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for(var i=0;i<Language.shortcuts.length;i++)
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if(Language.shortcuts[i].input == cCode)
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this.insertCode(Language.shortcuts[i].output,false);
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},
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getLastWord : function() {
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var rangeAndCaret = CodePress.getRangeAndCaret();
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words = rangeAndCaret[0].substring(rangeAndCaret[1]-40,rangeAndCaret[1]);
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words = words.replace(/[\s\n\r\);\W]/g,'\n').split('\n');
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return words[words.length-1].replace(/[\W]/gi,'').toLowerCase();
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},
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getRangeAndCaret : function() {
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var range = document.selection.createRange();
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var caret = Math.abs(range.moveStart('character', -1000000)+1);
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range = this.getCode();
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range = range.replace(/\n\r/gi,' ');
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range = range.replace(/\n/gi,'');
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return [range.toString(),caret];
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},
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insertCode : function(code,replaceCursorBefore) {
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var repdeb = '';
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var repfin = '';
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if(replaceCursorBefore) { repfin = code; }
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else { repdeb = code; }
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if(typeof document.selection != 'undefined') {
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var range = document.selection.createRange();
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range.text = repdeb + repfin;
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range = document.selection.createRange();
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range.move('character', -repfin.length);
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range.select();
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}
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},
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// get code from editor
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getCode : function() {
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var code = editor.innerHTML;
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code = code.replace(/<br>/g,'\n');
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code = code.replace(/<\/p>/gi,'\r');
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code = code.replace(/<p>/i,''); // IE first line fix
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code = code.replace(/<p>/gi,'\n');
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code = code.replace(/ /gi,'');
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code = code.replace(/\u2009/g,'');
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code = code.replace(/<.*?>/g,'');
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code = code.replace(/</g,'<');
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code = code.replace(/>/g,'>');
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code = code.replace(/&/gi,'&');
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return code;
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},
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// put code inside editor
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setCode : function() {
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var code = arguments[0];
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code = code.replace(/\u2009/gi,'');
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code = code.replace(/&/gi,'&');
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code = code.replace(/</g,'<');
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code = code.replace(/>/g,'>');
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editor.innerHTML = '<pre>'+code+'</pre>';
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},
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// undo and redo methods
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actions : {
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pos : -1, // actual history position
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history : [], // history vector
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undo : function() {
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if(editor.innerHTML.indexOf(cc)==-1){
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document.selection.createRange().text = cc;
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this.history[this.pos] = editor.innerHTML;
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}
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this.pos--;
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if(typeof(this.history[this.pos])=='undefined') this.pos++;
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editor.innerHTML = this.history[this.pos];
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CodePress.findString();
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},
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redo : function() {
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this.pos++;
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if(typeof(this.history[this.pos])=='undefined') this.pos--;
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editor.innerHTML = this.history[this.pos];
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CodePress.findString();
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},
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next : function() { // get next vector position and clean old ones
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if(this.pos>20) this.history[this.pos-21] = undefined;
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return ++this.pos;
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}
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}
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}
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Language={};
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window.attachEvent('onload', function() { CodePress.initialize('new');}); |