1 /* ***** BEGIN LICENSE BLOCK *****
2 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
3 *
4 * The contents of this file are subject to the Mozilla Public License Version
5 * 1.1 (the "License"); you may not use this file except in compliance with
6 * the License. You may obtain a copy of the License at
7 * http://www.mozilla.org/MPL/
8 *
9 * Software distributed under the License is distributed on an "AS IS" basis,
10 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
11 * for the specific language governing rights and limitations under the
12 * License.
13 *
14 * The Initial Developer of the Original Code is Fireinput Inc.
15 *
16 * Portions created by the Initial Developer are Copyright (C) 2007
17 * the Initial Developer. All Rights Reserved.
18 *
19 * Contributor(s):
20 * Olly Ja <ollyja@gmail.com>
21 *
22 * Alternatively, the contents of this file may be used under the terms of
23 * either the GNU General Public License Version 2 or later (the "GPL"), or
24 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
25 * in which case the provisions of the GPL or the LGPL are applicable instead
26 * of those above. If you wish to allow use of your version of this file only
27 * under the terms of either the GPL or the LGPL, and not to allow others to
28 * use your version of this file under the terms of the MPL, indicate your
29 * decision by deleting the provisions above and replace them with the notice
30 * and other provisions required by the GPL or the LGPL. If you do not delete
31 * the provisions above, a recipient may use your version of this file under
32 * the terms of any one of the MPL, the GPL or the LGPL.
33 *
34 * ***** END LICENSE BLOCK *****
35 */
36
37
38 var PinyinEncodingTable = function() { this.initialize(); };
39
40 PinyinEncodingTable.prototype = extend(new FireinputIME(),
41 {
42 debug: 0,
43
44 big5EncodingHash: null,
45
46 simpEncodingHash: null,
47
48 initialize: function()
49 {
50 var ios = FireinputXPC.getIOService();
51 var fileHandler = ios.getProtocolHandler("file")
52 .QueryInterface(Components.interfaces.nsIFileProtocolHandler);
53
54 var path = this.getDataPath();
55 var datafile = fileHandler.getFileFromURLSpec(path + this.getPinyinTransformFile());
56
57 this.big5EncodingHash = new FireinputHash();
58 this.simpEncodingHash = new FireinputHash();
59 if(!datafile.exists())
60 {
61 return;
62 }
63
64 var options = {
65 caller: this,
66 onavailable: this.getCodeLine
67 };
68
69 FireinputStream.loadDataAsync(datafile, options);
70 },
71
72 getCodeLine: function(str)
73 {
74 var strArray = new Array();
75 strArray = str.split('=>');
76 if(strArray.length < 2)
77 return;
78
79 var str0 = FireinputUnicode.getUnicodeString(strArray[0]);
80 var str1 = FireinputUnicode.getUnicodeString(strArray[1]);
81
82 this.simpEncodingHash.setItem(str0, str1);
83 this.big5EncodingHash.setItem(str1, str0);
84 },
85
86 switchToZH: function(charCode)
87 {
88 if(this.big5EncodingHash.hasItem(charCode))
89 return this.big5EncodingHash.getItem(charCode);
90 else
91 return charCode;
92 },
93
94 switchToBig5: function(charCode)
95 {
96 if(this.simpEncodingHash.hasItem(charCode))
97 return this.simpEncodingHash.getItem(charCode);
98 else
99 return charCode;
100 },
101
102 validEncoding: function(charCode, encoding)
103 {
104 charCode = FireinputUnicode.getUnicodeString(charCode);
105
106 switch(encoding)
107 {
108 case ENCODING_ZH:
109 return (this.simpEncodingHash.hasItem(charCode) ||
110 !this.big5EncodingHash.hasItem(charCode));
111
112 break;
113 case ENCODING_BIG5:
114 return (!this.simpEncodingHash.hasItem(charCode) ||
115 this.big5EncodingHash.hasItem(charCode));
116 break;
117 }
118
119 return true;
120 }
121
122 });
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