1 /*

     2  * CodePress - Real Time Syntax Highlighting Editor written in JavaScript - http://codepress.org/

     3  * 

     4  * Copyright (C) 2006 Fernando M.A.d.S. <fermads@gmail.com>

     5  *

     6  * This program is free software; you can redistribute it and/or modify it under the terms of the 

     7  * GNU Lesser General Public License as published by the Free Software Foundation.

     8  * 

     9  * Read the full licence: http://www.opensource.org/licenses/lgpl-license.php

    10  */

    11 

    12 CodePress = function(obj) {

    13 	var self = document.createElement('iframe');

    14 	self.textarea = obj;

    15 	self.textarea.disabled = true;

    16 	self.textarea.style.overflow = 'hidden';

    17 	self.style.height = self.textarea.clientHeight +'px';

    18 	self.style.width = self.textarea.clientWidth +'px';

    19 	self.textarea.style.overflow = 'auto';

    20 	self.style.border = '1px solid gray';

    21 	self.frameBorder = 0; // remove IE internal iframe border

    22 	self.style.visibility = 'hidden';

    23 	self.style.position = 'absolute';

    24 	self.options = self.textarea.className;

    25 	

    26 	self.initialize = function() {

    27 		self.editor = self.contentWindow.CodePress;

    28 		self.editor.body = self.contentWindow.document.getElementsByTagName('body')[0];

    29 		self.editor.setCode(self.textarea.value);

    30 		self.setOptions();

    31 		self.editor.syntaxHighlight('init');

    32 		self.textarea.style.display = 'none';

    33 		self.style.position = 'static';

    34 		self.style.visibility = 'visible';

    35 		self.style.display = 'inline';

    36 	}

    37 	

    38 	// obj can by a textarea id or a string (code)

    39 	self.edit = function(obj,language) {

    40 		if(obj) self.textarea.value = document.getElementById(obj) ? document.getElementById(obj).value : obj;

    41 		if(!self.textarea.disabled) return;

    42 		self.language = language ? language : self.getLanguage();

    43 		self.src = CodePress.path+'codepress.html?language='+self.language+'&ts='+(new Date).getTime();

    44 		if(self.attachEvent) self.attachEvent('onload',self.initialize);

    45 		else self.addEventListener('load',self.initialize,false);

    46 	}

    47 

    48 	self.getLanguage = function() {

    49 		for (language in CodePress.languages) 

    50 			if(self.options.match('\\b'+language+'\\b')) 

    51 				return CodePress.languages[language] ? language : 'generic';

    52 	}

    53 	

    54 	self.setOptions = function() {

    55 		if(self.options.match('autocomplete-off')) self.toggleAutoComplete();

    56 		if(self.options.match('readonly-on')) self.toggleReadOnly();

    57 		if(self.options.match('linenumbers-off')) self.toggleLineNumbers();

    58 	}

    59 	

    60 	self.getCode = function() {

    61 		return self.textarea.disabled ? self.editor.getCode() : self.textarea.value;

    62 	}

    63 

    64 	self.setCode = function(code) {

    65 		self.textarea.disabled ? self.editor.setCode(code) : self.textarea.value = code;

    66 	}

    67 

    68 	self.toggleAutoComplete = function() {

    69 		self.editor.autocomplete = (self.editor.autocomplete) ? false : true;

    70 	}

    71 	

    72 	self.toggleReadOnly = function() {

    73 		self.textarea.readOnly = (self.textarea.readOnly) ? false : true;

    74 		if(self.style.display != 'none') // prevent exception on FF + iframe with display:none

    75 			self.editor.readOnly(self.textarea.readOnly ? true : false);

    76 	}

    77 	

    78 	self.toggleLineNumbers = function() {

    79 		var cn = self.editor.body.className;

    80 		self.editor.body.className = (cn==''||cn=='show-line-numbers') ? 'hide-line-numbers' : 'show-line-numbers';

    81 	}

    82 	

    83 	self.toggleEditor = function() {

    84 		if(self.textarea.disabled) {

    85 			self.textarea.value = self.getCode();

    86 			self.textarea.disabled = false;

    87 			self.style.display = 'none';

    88 			self.textarea.style.display = 'inline';

    89 		}

    90 		else {

    91 			self.textarea.disabled = true;

    92 			self.setCode(self.textarea.value);

    93 			self.editor.syntaxHighlight('init');

    94 			self.style.display = 'inline';

    95 			self.textarea.style.display = 'none';

    96 		}

    97 	}

    98 

    99 	self.edit();

   100 	return self;

   101 }

   102 

   103 CodePress.languages = {	

   104 	csharp : 'C#', 

   105 	css : 'CSS', 

   106 	generic : 'Generic',

   107 	html : 'HTML',

   108 	java : 'Java', 

   109 	javascript : 'JavaScript', 

   110 	perl : 'Perl', 

   111 	ruby : 'Ruby',	

   112 	php : 'PHP', 

   113 	text : 'Text', 

   114 	sql : 'SQL',

   115 	vbscript : 'VBScript'

   116 }

   117 

   118 

   119 CodePress.run = function() {

   120 	// Modified for WordPress compat to prevent loading on webkit and to

   121 	// reference a codepress_path which is specified externally.

   122 	if (navigator.userAgent.toLowerCase().indexOf('webkit') != -1)

   123 		return;

   124 	CodePress.path = codepress_path;

   125 	var t = document.getElementsByTagName('textarea'), i, id;

   126 	for(i=0,n=t.length;i<n;i++) {

   127 		if(t[i].className.match('codepress')) {

   128 			id = t[i].id;

   129 			t[i].id = id+'_cp';

   130 			eval(id+' = new CodePress(t[i])');

   131 			t[i].parentNode.insertBefore(eval(id), t[i]);

   132 		} 

   133 	}

   134 }

   135 

   136 if(window.attachEvent) window.attachEvent('onload',CodePress.run);

   137 else window.addEventListener('DOMContentLoaded',CodePress.run,false);