Upstream version 10.39.225.0
[platform/framework/web/crosswalk.git] / src / third_party / WebKit / Source / core / loader / appcache / ApplicationCache.cpp
1 /*
2  * Copyright (C) 2008, 2009 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. ``AS IS'' AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25
26 #include "config.h"
27 #include "core/loader/appcache/ApplicationCache.h"
28
29 #include "bindings/core/v8/ExceptionState.h"
30 #include "core/dom/Document.h"
31 #include "core/dom/ExceptionCode.h"
32 #include "core/events/EventListener.h"
33 #include "core/frame/LocalFrame.h"
34 #include "core/loader/DocumentLoader.h"
35 #include "core/loader/FrameLoader.h"
36
37 namespace blink {
38
39 ApplicationCache::ApplicationCache(LocalFrame* frame)
40     : DOMWindowProperty(frame)
41 {
42     ApplicationCacheHost* cacheHost = applicationCacheHost();
43     if (cacheHost)
44         cacheHost->setApplicationCache(this);
45 }
46
47 void ApplicationCache::trace(Visitor* visitor)
48 {
49     EventTargetWithInlineData::trace(visitor);
50     DOMWindowProperty::trace(visitor);
51 }
52
53 void ApplicationCache::willDestroyGlobalObjectInFrame()
54 {
55     if (ApplicationCacheHost* cacheHost = applicationCacheHost())
56         cacheHost->setApplicationCache(0);
57     DOMWindowProperty::willDestroyGlobalObjectInFrame();
58 }
59
60 ApplicationCacheHost* ApplicationCache::applicationCacheHost() const
61 {
62     if (!m_frame || !m_frame->loader().documentLoader())
63         return 0;
64     return m_frame->loader().documentLoader()->applicationCacheHost();
65 }
66
67 unsigned short ApplicationCache::status() const
68 {
69     ApplicationCacheHost* cacheHost = applicationCacheHost();
70     if (!cacheHost)
71         return ApplicationCacheHost::UNCACHED;
72     return cacheHost->status();
73 }
74
75 void ApplicationCache::update(ExceptionState& exceptionState)
76 {
77     ApplicationCacheHost* cacheHost = applicationCacheHost();
78     if (!cacheHost || !cacheHost->update())
79         exceptionState.throwDOMException(InvalidStateError, "there is no application cache to update.");
80 }
81
82 void ApplicationCache::swapCache(ExceptionState& exceptionState)
83 {
84     ApplicationCacheHost* cacheHost = applicationCacheHost();
85     if (!cacheHost || !cacheHost->swapCache())
86         exceptionState.throwDOMException(InvalidStateError, "there is no newer application cache to swap to.");
87 }
88
89 void ApplicationCache::abort()
90 {
91     ApplicationCacheHost* cacheHost = applicationCacheHost();
92     if (cacheHost)
93         cacheHost->abort();
94 }
95
96 const AtomicString& ApplicationCache::interfaceName() const
97 {
98     return EventTargetNames::ApplicationCache;
99 }
100
101 ExecutionContext* ApplicationCache::executionContext() const
102 {
103     if (m_frame)
104         return m_frame->document();
105     return 0;
106 }
107
108 const AtomicString& ApplicationCache::toEventType(ApplicationCacheHost::EventID id)
109 {
110     switch (id) {
111     case ApplicationCacheHost::CHECKING_EVENT:
112         return EventTypeNames::checking;
113     case ApplicationCacheHost::ERROR_EVENT:
114         return EventTypeNames::error;
115     case ApplicationCacheHost::NOUPDATE_EVENT:
116         return EventTypeNames::noupdate;
117     case ApplicationCacheHost::DOWNLOADING_EVENT:
118         return EventTypeNames::downloading;
119     case ApplicationCacheHost::PROGRESS_EVENT:
120         return EventTypeNames::progress;
121     case ApplicationCacheHost::UPDATEREADY_EVENT:
122         return EventTypeNames::updateready;
123     case ApplicationCacheHost::CACHED_EVENT:
124         return EventTypeNames::cached;
125     case ApplicationCacheHost::OBSOLETE_EVENT:
126         return EventTypeNames::obsolete;
127     }
128     ASSERT_NOT_REACHED();
129     return EventTypeNames::error;
130 }
131
132 } // namespace blink