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

Last change on this file since 44 was 44, checked in by luciano, 15 years ago
File size: 8.1 KB
RevLine 
[44]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 * Contributors :
7 *
8 * Michael Hurni <michael.hurni@gmail.com>
9 *
10 * This program is free software; you can redistribute it and/or modify it under the terms of the
11 * GNU Lesser General Public License as published by the Free Software Foundation.
12 *
13 * Read the full licence: http://www.opensource.org/licenses/lgpl-license.php
14 */
15
16
17CodePress = {
18 scrolling : false,
19 autocomplete : true,
20
21 // set initial vars and start sh
22 initialize : function() {
23 if(typeof(editor)=='undefined' && !arguments[0]) return;
24 chars = '|32|46|62|'; // charcodes that trigger syntax highlighting
25 cc = '\u2009'; // control char
26 editor = document.getElementsByTagName('body')[0];
27 document.designMode = 'on';
28 document.addEventListener('keyup', this.keyHandler, true);
29 window.addEventListener('scroll', function() { if(!CodePress.scrolling) CodePress.syntaxHighlight('scroll') }, false);
30 completeChars = this.getCompleteChars();
31// CodePress.syntaxHighlight('init');
32 },
33
34 // treat key bindings
35 keyHandler : function(evt) {
36 keyCode = evt.keyCode;
37 charCode = evt.charCode;
38
39 if((evt.ctrlKey || evt.metaKey) && evt.shiftKey && charCode!=90) { // shortcuts = ctrl||appleKey+shift+key!=z(undo)
40 CodePress.shortcuts(charCode?charCode:keyCode);
41 }
42 else if(completeChars.indexOf('|'+String.fromCharCode(charCode)+'|')!=-1 && CodePress.autocomplete) { // auto complete
43 CodePress.complete(String.fromCharCode(charCode));
44 }
45 else if(chars.indexOf('|'+charCode+'|')!=-1||keyCode==13) { // syntax highlighting
46 CodePress.syntaxHighlight('generic');
47 }
48 else if(keyCode==9 || evt.tabKey) { // snippets activation (tab)
49 CodePress.snippets(evt);
50 }
51 else if(keyCode==46||keyCode==8) { // save to history when delete or backspace pressed
52 CodePress.actions.history[CodePress.actions.next()] = editor.innerHTML;
53 }
54 else if((charCode==122||charCode==121||charCode==90) && evt.ctrlKey) { // undo and redo
55 (charCode==121||evt.shiftKey) ? CodePress.actions.redo() : CodePress.actions.undo();
56 evt.preventDefault();
57 }
58 else if(keyCode==86 && evt.ctrlKey) { // paste
59 // TODO: pasted text should be parsed and highlighted
60 }
61 },
62
63 // put cursor back to its original position after every parsing
64 findString : function() {
65 var sel = window.getSelection();
66 var range = window.document.createRange();
67 var span = window.document.getElementsByTagName('span')[0];
68
69 range.selectNode(span);
70 sel.removeAllRanges();
71 sel.addRange(range);
72 span.parentNode.removeChild(span);
73 //if(self.find(cc))
74 //window.getSelection().getRangeAt(0).deleteContents();
75 },
76
77 // split big files, highlighting parts of it
78 split : function(code,flag) {
79 if(flag=='scroll') {
80 this.scrolling = true;
81 return code;
82 }
83 else {
84 this.scrolling = false;
85 mid = code.indexOf('<SPAN>');
86 if(mid-2000<0) {ini=0;end=4000;}
87 else if(mid+2000>code.length) {ini=code.length-4000;end=code.length;}
88 else {ini=mid-2000;end=mid+2000;}
89 code = code.substring(ini,end);
90 return code;
91 }
92 },
93
94 // syntax highlighting parser
95 syntaxHighlight : function(flag) {
96 //if(document.designMode=='off') document.designMode='on'
97 if(flag!='init') {
98 var span = document.createElement('span');
99 window.getSelection().getRangeAt(0).insertNode(span);
100 }
101
102 o = editor.innerHTML;
103// o = o.replace(/<br>/g,'\r\n');
104// o = o.replace(/<(b|i|s|u|a|em|tt|ins|big|cite|strong)?>/g,'');
105 //alert(o)
106 o = o.replace(/<(?!span|\/span|br).*?>/gi,'');
107// alert(o)
108// x = o;
109 x = z = this.split(o,flag);
110 //alert(z)
111// x = x.replace(/\r\n/g,'<br>');
112 x = x.replace(/\t/g, ' ');
113
114
115 if(arguments[1]&&arguments[2]) x = x.replace(arguments[1],arguments[2]);
116
117 for(i=0;i<Language.syntax.length;i++)
118 x = x.replace(Language.syntax[i].input,Language.syntax[i].output);
119
120 editor.innerHTML = this.actions.history[this.actions.next()] = (flag=='scroll') ? x : o.split(z).join(x);
121
122 if(flag!='init') this.findString();
123 },
124
125 getLastWord : function() {
126 var rangeAndCaret = CodePress.getRangeAndCaret();
127 words = rangeAndCaret[0].substring(rangeAndCaret[1]-40,rangeAndCaret[1]);
128 words = words.replace(/[\s\n\r\);\W]/g,'\n').split('\n');
129 return words[words.length-1].replace(/[\W]/gi,'').toLowerCase();
130 },
131
132 snippets : function(evt) {
133 var snippets = Language.snippets;
134 var trigger = this.getLastWord();
135 for (var i=0; i<snippets.length; i++) {
136 if(snippets[i].input == trigger) {
137 var content = snippets[i].output.replace(/</g,'&lt;');
138 content = content.replace(/>/g,'&gt;');
139 if(content.indexOf('$0')<0) content += cc;
140 else content = content.replace(/\$0/,cc);
141 content = content.replace(/\n/g,'<br>');
142 var pattern = new RegExp(trigger+cc,'gi');
143 evt.preventDefault(); // prevent the tab key from being added
144 this.syntaxHighlight('snippets',pattern,content);
145 }
146 }
147 },
148
149 readOnly : function() {
150 document.designMode = (arguments[0]) ? 'off' : 'on';
151 },
152
153 complete : function(trigger) {
154 window.getSelection().getRangeAt(0).deleteContents();
155 var complete = Language.complete;
156 for (var i=0; i<complete.length; i++) {
157 if(complete[i].input == trigger) {
158 var pattern = new RegExp('\\'+trigger+cc);
159 var content = complete[i].output.replace(/\$0/g,cc);
160 parent.setTimeout(function () { CodePress.syntaxHighlight('complete',pattern,content)},0); // wait for char to appear on screen
161 }
162 }
163 },
164
165 getCompleteChars : function() {
166 var cChars = '';
167 for(var i=0;i<Language.complete.length;i++)
168 cChars += '|'+Language.complete[i].input;
169 return cChars+'|';
170 },
171
172 shortcuts : function() {
173 var cCode = arguments[0];
174 if(cCode==13) cCode = '[enter]';
175 else if(cCode==32) cCode = '[space]';
176 else cCode = '['+String.fromCharCode(charCode).toLowerCase()+']';
177 for(var i=0;i<Language.shortcuts.length;i++)
178 if(Language.shortcuts[i].input == cCode)
179 this.insertCode(Language.shortcuts[i].output,false);
180 },
181
182 getRangeAndCaret : function() {
183 var range = window.getSelection().getRangeAt(0);
184 var range2 = range.cloneRange();
185 var node = range.endContainer;
186 var caret = range.endOffset;
187 range2.selectNode(node);
188 return [range2.toString(),caret];
189 },
190
191 insertCode : function(code,replaceCursorBefore) {
192 var range = window.getSelection().getRangeAt(0);
193 var node = window.document.createTextNode(code);
194 var selct = window.getSelection();
195 var range2 = range.cloneRange();
196 // Insert text at cursor position
197 selct.removeAllRanges();
198 range.deleteContents();
199 range.insertNode(node);
200 // Move the cursor to the end of text
201 range2.selectNode(node);
202 range2.collapse(replaceCursorBefore);
203 selct.removeAllRanges();
204 selct.addRange(range2);
205 },
206
207 // get code from editor
208 getCode : function() {
209 var code = editor.innerHTML;
210 code = code.replace(/<br>/g,'\n');
211 code = code.replace(/\u2009/g,'');
212 code = code.replace(/<.*?>/g,'');
213 code = code.replace(/&lt;/g,'<');
214 code = code.replace(/&gt;/g,'>');
215 code = code.replace(/&amp;/gi,'&');
216 return code;
217 },
218
219 // put code inside editor
220 setCode : function() {
221 var code = arguments[0];
222 code = code.replace(/\u2009/gi,'');
223 code = code.replace(/&/gi,'&amp;');
224 code = code.replace(/</g,'&lt;');
225 code = code.replace(/>/g,'&gt;');
226 editor.innerHTML = code;
227 },
228
229 // undo and redo methods
230 actions : {
231 pos : -1, // actual history position
232 history : [], // history vector
233
234 undo : function() {
235 if(editor.innerHTML.indexOf(cc)==-1){
236 window.getSelection().getRangeAt(0).insertNode(document.createTextNode(cc));
237 this.history[this.pos] = editor.innerHTML;
238 }
239 this.pos--;
240 if(typeof(this.history[this.pos])=='undefined') this.pos++;
241 editor.innerHTML = this.history[this.pos];
242 CodePress.findString();
243 },
244
245 redo : function() {
246 this.pos++;
247 if(typeof(this.history[this.pos])=='undefined') this.pos--;
248 editor.innerHTML = this.history[this.pos];
249 CodePress.findString();
250 },
251
252 next : function() { // get next vector position and clean old ones
253 if(this.pos>20) this.history[this.pos-21] = undefined;
254 return ++this.pos;
255 }
256 }
257}
258
259Language={};
260window.addEventListener('load', function() { CodePress.initialize('new'); }, true);
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