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
37namespace blink {
38
39ApplicationCache::ApplicationCache(LocalFrame* frame)
40    : DOMWindowProperty(frame)
41{
42    ApplicationCacheHost* cacheHost = applicationCacheHost();
43    if (cacheHost)
44        cacheHost->setApplicationCache(this);
45}
46
47void ApplicationCache::trace(Visitor* visitor)
48{
49    EventTargetWithInlineData::trace(visitor);
50    DOMWindowProperty::trace(visitor);
51}
52
53void ApplicationCache::willDestroyGlobalObjectInFrame()
54{
55    if (ApplicationCacheHost* cacheHost = applicationCacheHost())
56        cacheHost->setApplicationCache(0);
57    DOMWindowProperty::willDestroyGlobalObjectInFrame();
58}
59
60ApplicationCacheHost* ApplicationCache::applicationCacheHost() const
61{
62    if (!m_frame || !m_frame->loader().documentLoader())
63        return 0;
64    return m_frame->loader().documentLoader()->applicationCacheHost();
65}
66
67unsigned short ApplicationCache::status() const
68{
69    ApplicationCacheHost* cacheHost = applicationCacheHost();
70    if (!cacheHost)
71        return ApplicationCacheHost::UNCACHED;
72    return cacheHost->status();
73}
74
75void 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
82void 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
89void ApplicationCache::abort()
90{
91    ApplicationCacheHost* cacheHost = applicationCacheHost();
92    if (cacheHost)
93        cacheHost->abort();
94}
95
96const AtomicString& ApplicationCache::interfaceName() const
97{
98    return EventTargetNames::ApplicationCache;
99}
100
101ExecutionContext* ApplicationCache::executionContext() const
102{
103    if (m_frame)
104        return m_frame->document();
105    return 0;
106}
107
108const 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
133