1 /*
2 * Copyright (C) 2010 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "config.h"
27 #include "Language.h"
28
29 #include "PlatformString.h"
30 #include <wtf/HashMap.h>
31
32 namespace WebCore {
33
34 typedef HashMap<void*, LanguageChangeObserverFunction> ObserverMap;
observerMap()35 static ObserverMap& observerMap()
36 {
37 DEFINE_STATIC_LOCAL(ObserverMap, map, ());
38 return map;
39 }
40
addLanguageChangeObserver(void * context,LanguageChangeObserverFunction customObserver)41 void addLanguageChangeObserver(void* context, LanguageChangeObserverFunction customObserver)
42 {
43 observerMap().set(context, customObserver);
44 }
45
removeLanguageChangeObserver(void * context)46 void removeLanguageChangeObserver(void* context)
47 {
48 ASSERT(observerMap().contains(context));
49 observerMap().remove(context);
50 }
51
languageDidChange()52 void languageDidChange()
53 {
54 ObserverMap::iterator end = observerMap().end();
55 for (ObserverMap::iterator iter = observerMap().begin(); iter != end; ++iter)
56 iter->second(iter->first);
57 }
58
languageOverride()59 static String& languageOverride()
60 {
61 DEFINE_STATIC_LOCAL(String, override, ());
62 return override;
63 }
64
defaultLanguage()65 String defaultLanguage()
66 {
67 const String& override = languageOverride();
68 if (!override.isNull())
69 return override;
70
71 return platformDefaultLanguage();
72 }
73
overrideDefaultLanguage(const String & override)74 void overrideDefaultLanguage(const String& override)
75 {
76 languageOverride() = override;
77 }
78
79 }
80