source: trunk/www.guidonia.net/wp/wp-includes/js/codepress/engines/msie.js@ 44

Last change on this file since 44 was 44, checked in by luciano, 15 years ago
File size: 9.4 KB
Line 
1/*
2 * CodePress - Real Time Syntax Highlighting Editor written in JavaScript - http://codepress.org/
3 *
4 * Copyright (C) 2007 Fernando M.A.d.S. <fermads@gmail.com>
5 *
6 * Developers:
7 * Fernando M.A.d.S. <fermads@gmail.com>
8 * Michael Hurni <michael.hurni@gmail.com>
9 * Contributors:
10 * Martin D. Kirk
11 *
12 * This program is free software; you can redistribute it and/or modify it under the terms of the
13 * GNU Lesser General Public License as published by the Free Software Foundation.
14 *
15 * Read the full licence: http://www.opensource.org/licenses/lgpl-license.php
16 */
17
18CodePress = {
19 scrolling : false,
20 autocomplete : true,
21
22 // set initial vars and start sh
23 initialize : function() {
24 if(typeof(editor)=='undefined' && !arguments[0]) return;
25 chars = '|32|46|62|'; // charcodes that trigger syntax highlighting
26 cc = '\u2009'; // carret char
27 editor = document.getElementsByTagName('pre')[0];
28 editor.contentEditable = 'true';
29 document.getElementsByTagName('body')[0].onfocus = function() {editor.focus();}
30 document.attachEvent('onkeydown', this.metaHandler);
31 document.attachEvent('onkeypress', this.keyHandler);
32 window.attachEvent('onscroll', function() { if(!CodePress.scrolling) setTimeout(function(){CodePress.syntaxHighlight('scroll')},1)});
33 completeChars = this.getCompleteChars();
34 completeEndingChars = this.getCompleteEndingChars();
35 setTimeout(function() { window.scroll(0,0) },50); // scroll IE to top
36 },
37
38 // treat key bindings
39 keyHandler : function(evt) {
40 charCode = evt.keyCode;
41 fromChar = String.fromCharCode(charCode);
42
43 if( (completeEndingChars.indexOf('|'+fromChar+'|')!= -1 || completeChars.indexOf('|'+fromChar+'|')!=-1 )&& CodePress.autocomplete) { // auto complete
44 if(!CodePress.completeEnding(fromChar))
45 CodePress.complete(fromChar);
46 }
47 else if(chars.indexOf('|'+charCode+'|')!=-1||charCode==13) { // syntax highlighting
48 CodePress.syntaxHighlight('generic');
49 }
50 },
51
52 metaHandler : function(evt) {
53 keyCode = evt.keyCode;
54
55 if(keyCode==9 || evt.tabKey) {
56 CodePress.snippets();
57 }
58 else if((keyCode==122||keyCode==121||keyCode==90) && evt.ctrlKey) { // undo and redo
59 (keyCode==121||evt.shiftKey) ? CodePress.actions.redo() : CodePress.actions.undo();
60 evt.returnValue = false;
61 }
62 else if(keyCode==34||keyCode==33) { // handle page up/down for IE
63 self.scrollBy(0, (keyCode==34) ? 200 : -200);
64 evt.returnValue = false;
65 }
66 else if(keyCode==46||keyCode==8) { // save to history when delete or backspace pressed
67 CodePress.actions.history[CodePress.actions.next()] = editor.innerHTML;
68 }
69 else if((evt.ctrlKey || evt.metaKey) && evt.shiftKey && keyCode!=90) { // shortcuts = ctrl||appleKey+shift+key!=z(undo)
70 CodePress.shortcuts(keyCode);
71 evt.returnValue = false;
72 }
73 else if(keyCode==86 && evt.ctrlKey) { // handle paste
74 window.clipboardData.setData('Text',window.clipboardData.getData('Text').replace(/\t/g,'\u2008'));
75 top.setTimeout(function(){CodePress.syntaxHighlight('paste');},10);
76 }
77 else if(keyCode==67 && evt.ctrlKey) { // handle cut
78 // window.clipboardData.setData('Text',x[0]);
79 // code = window.clipboardData.getData('Text');
80 }
81 },
82
83 // put cursor back to its original position after every parsing
84
85
86 findString : function() {
87 range = self.document.body.createTextRange();
88 if(range.findText(cc)){
89 range.select();
90 range.text = '';
91 }
92 },
93
94 // split big files, highlighting parts of it
95 split : function(code,flag) {
96 if(flag=='scroll') {
97 this.scrolling = true;
98 return code;
99 }
100 else {
101 this.scrolling = false;
102 mid = code.indexOf(cc);
103 if(mid-2000<0) {ini=0;end=4000;}
104 else if(mid+2000>code.length) {ini=code.length-4000;end=code.length;}
105 else {ini=mid-2000;end=mid+2000;}
106 code = code.substring(ini,end);
107 return code.substring(code.indexOf('<P>'),code.lastIndexOf('</P>')+4);
108 }
109 },
110
111 // syntax highlighting parser
112 syntaxHighlight : function(flag) {
113 if(flag!='init') document.selection.createRange().text = cc;
114 o = editor.innerHTML;
115 if(flag=='paste') { // fix pasted text
116 o = o.replace(/<BR>/g,'\r\n');
117 o = o.replace(/\u2008/g,'\t');
118 }
119 o = o.replace(/<P>/g,'\n');
120 o = o.replace(/<\/P>/g,'\r');
121 o = o.replace(/<.*?>/g,'');
122 o = o.replace(/&nbsp;/g,'');
123 o = '<PRE><P>'+o+'</P></PRE>';
124 o = o.replace(/\n\r/g,'<P></P>');
125 o = o.replace(/\n/g,'<P>');
126 o = o.replace(/\r/g,'<\/P>');
127 o = o.replace(/<P>(<P>)+/,'<P>');
128 o = o.replace(/<\/P>(<\/P>)+/,'</P>');
129 o = o.replace(/<P><\/P>/g,'<P><BR/></P>');
130 x = z = this.split(o,flag);
131
132 if(arguments[1]&&arguments[2]) x = x.replace(arguments[1],arguments[2]);
133
134 for(i=0;i<Language.syntax.length;i++)
135 x = x.replace(Language.syntax[i].input,Language.syntax[i].output);
136
137 editor.innerHTML = this.actions.history[this.actions.next()] = (flag=='scroll') ? x : o.replace(z,x);
138 if(flag!='init') this.findString();
139 },
140
141 snippets : function(evt) {
142 var snippets = Language.snippets;
143 var trigger = this.getLastWord();
144 for (var i=0; i<snippets.length; i++) {
145 if(snippets[i].input == trigger) {
146 var content = snippets[i].output.replace(/</g,'&lt;');
147 content = content.replace(/>/g,'&gt;');
148 if(content.indexOf('$0')<0) content += cc;
149 else content = content.replace(/\$0/,cc);
150 content = content.replace(/\n/g,'</P><P>');
151 var pattern = new RegExp(trigger+cc,"gi");
152 this.syntaxHighlight('snippets',pattern,content);
153 }
154 }
155 },
156
157 readOnly : function() {
158 editor.contentEditable = (arguments[0]) ? 'false' : 'true';
159 },
160
161 complete : function(trigger) {
162 var complete = Language.complete;
163 for (var i=0; i<complete.length; i++) {
164 if(complete[i].input == trigger) {
165 var pattern = new RegExp('\\'+trigger+cc);
166 var content = complete[i].output.replace(/\$0/g,cc);
167 setTimeout(function () { CodePress.syntaxHighlight('complete',pattern,content)},0); // wait for char to appear on screen
168 }
169 }
170 },
171
172 getCompleteChars : function() {
173 var cChars = '';
174 for(var i=0;i<Language.complete.length;i++)
175 cChars += '|'+Language.complete[i].input;
176 return cChars+'|';
177 },
178
179 getCompleteEndingChars : function() {
180 var cChars = '';
181 for(var i=0;i<Language.complete.length;i++)
182 cChars += '|'+Language.complete[i].output.charAt(Language.complete[i].output.length-1);
183 return cChars+'|';
184 },
185
186 completeEnding : function(trigger) {
187 var range = document.selection.createRange();
188 try {
189 range.moveEnd('character', 1)
190 }
191 catch(e) {
192 return false;
193 }
194 var next_character = range.text
195 range.moveEnd('character', -1)
196 if(next_character != trigger ) return false;
197 else {
198 range.moveEnd('character', 1)
199 range.text=''
200 return true;
201 }
202 },
203
204 shortcuts : function() {
205 var cCode = arguments[0];
206 if(cCode==13) cCode = '[enter]';
207 else if(cCode==32) cCode = '[space]';
208 else cCode = '['+String.fromCharCode(keyCode).toLowerCase()+']';
209 for(var i=0;i<Language.shortcuts.length;i++)
210 if(Language.shortcuts[i].input == cCode)
211 this.insertCode(Language.shortcuts[i].output,false);
212 },
213
214 getLastWord : function() {
215 var rangeAndCaret = CodePress.getRangeAndCaret();
216 words = rangeAndCaret[0].substring(rangeAndCaret[1]-40,rangeAndCaret[1]);
217 words = words.replace(/[\s\n\r\);\W]/g,'\n').split('\n');
218 return words[words.length-1].replace(/[\W]/gi,'').toLowerCase();
219 },
220
221 getRangeAndCaret : function() {
222 var range = document.selection.createRange();
223 var caret = Math.abs(range.moveStart('character', -1000000)+1);
224 range = this.getCode();
225 range = range.replace(/\n\r/gi,' ');
226 range = range.replace(/\n/gi,'');
227 return [range.toString(),caret];
228 },
229
230 insertCode : function(code,replaceCursorBefore) {
231 var repdeb = '';
232 var repfin = '';
233
234 if(replaceCursorBefore) { repfin = code; }
235 else { repdeb = code; }
236
237 if(typeof document.selection != 'undefined') {
238 var range = document.selection.createRange();
239 range.text = repdeb + repfin;
240 range = document.selection.createRange();
241 range.move('character', -repfin.length);
242 range.select();
243 }
244 },
245
246 // get code from editor
247 getCode : function() {
248 var code = editor.innerHTML;
249 code = code.replace(/<br>/g,'\n');
250 code = code.replace(/<\/p>/gi,'\r');
251 code = code.replace(/<p>/i,''); // IE first line fix
252 code = code.replace(/<p>/gi,'\n');
253 code = code.replace(/&nbsp;/gi,'');
254 code = code.replace(/\u2009/g,'');
255 code = code.replace(/<.*?>/g,'');
256 code = code.replace(/&lt;/g,'<');
257 code = code.replace(/&gt;/g,'>');
258 code = code.replace(/&amp;/gi,'&');
259 return code;
260 },
261
262 // put code inside editor
263 setCode : function() {
264 var code = arguments[0];
265 code = code.replace(/\u2009/gi,'');
266 code = code.replace(/&/gi,'&amp;');
267 code = code.replace(/</g,'&lt;');
268 code = code.replace(/>/g,'&gt;');
269 editor.innerHTML = '<pre>'+code+'</pre>';
270 },
271
272
273 // undo and redo methods
274 actions : {
275 pos : -1, // actual history position
276 history : [], // history vector
277
278 undo : function() {
279 if(editor.innerHTML.indexOf(cc)==-1){
280 document.selection.createRange().text = cc;
281 this.history[this.pos] = editor.innerHTML;
282 }
283 this.pos--;
284 if(typeof(this.history[this.pos])=='undefined') this.pos++;
285 editor.innerHTML = this.history[this.pos];
286 CodePress.findString();
287 },
288
289 redo : function() {
290 this.pos++;
291 if(typeof(this.history[this.pos])=='undefined') this.pos--;
292 editor.innerHTML = this.history[this.pos];
293 CodePress.findString();
294 },
295
296 next : function() { // get next vector position and clean old ones
297 if(this.pos>20) this.history[this.pos-21] = undefined;
298 return ++this.pos;
299 }
300 }
301}
302
303Language={};
304window.attachEvent('onload', function() { CodePress.initialize('new');});
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