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
12CodePress = 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
103CodePress.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
119CodePress.run = function() {
120	s = document.getElementsByTagName('script');
121	for(var i=0,n=s.length;i<n;i++) {
122		if(s[i].src.match('codepress.js')) {
123			CodePress.path = s[i].src.replace('codepress.js','');
124		}
125	}
126	t = document.getElementsByTagName('textarea');
127	for(var i=0,n=t.length;i<n;i++) {
128		if(t[i].className.match('codepress')) {
129			id = t[i].id;
130			t[i].id = id +'_cp';
131			eval(id+' = new CodePress(t[i])');
132			t[i].parentNode.insertBefore(eval(id), t[i]);
133		}
134	}
135}
136/*
137if(window.attachEvent) window.attachEvent('onload',CodePress.run);
138else window.addEventListener('DOMContentLoaded',CodePress.run,false);*/