DOMApplicationCache.cpp revision cad810f21b803229eb11403f9209855525a25d57 
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 "DOMApplicationCache.h"
28
29#if ENABLE(OFFLINE_WEB_APPLICATIONS)
30
31#include "ApplicationCacheHost.h"
32#include "DocumentLoader.h"
33#include "Event.h"
34#include "EventException.h"
35#include "EventListener.h"
36#include "EventNames.h"
37#include "Frame.h"
38#include "FrameLoader.h"
39
40namespace WebCore {
41
42DOMApplicationCache::DOMApplicationCache(Frame* frame)
43    : m_frame(frame)
44{
45    ApplicationCacheHost* cacheHost = applicationCacheHost();
46    if (cacheHost)
47        cacheHost->setDOMApplicationCache(this);
48}
49
50void DOMApplicationCache::disconnectFrame()
51{
52    ApplicationCacheHost* cacheHost = applicationCacheHost();
53    if (cacheHost)
54        cacheHost->setDOMApplicationCache(0);
55    m_frame = 0;
56}
57
58ApplicationCacheHost* DOMApplicationCache::applicationCacheHost() const
59{
60    if (!m_frame || !m_frame->loader()->documentLoader())
61        return 0;
62    return m_frame->loader()->documentLoader()->applicationCacheHost();
63}
64
65unsigned short DOMApplicationCache::status() const
66{
67    ApplicationCacheHost* cacheHost = applicationCacheHost();
68    if (!cacheHost)
69        return ApplicationCacheHost::UNCACHED;
70    return cacheHost->status();
71}
72
73void DOMApplicationCache::update(ExceptionCode& ec)
74{
75    ApplicationCacheHost* cacheHost = applicationCacheHost();
76    if (!cacheHost || !cacheHost->update())
77        ec = INVALID_STATE_ERR;
78}
79
80void DOMApplicationCache::swapCache(ExceptionCode& ec)
81{
82    ApplicationCacheHost* cacheHost = applicationCacheHost();
83    if (!cacheHost || !cacheHost->swapCache())
84        ec = INVALID_STATE_ERR;
85}
86
87ScriptExecutionContext* DOMApplicationCache::scriptExecutionContext() const
88{
89    if (m_frame)
90        return m_frame->document();
91    return 0;
92}
93
94const AtomicString& DOMApplicationCache::toEventType(ApplicationCacheHost::EventID id)
95{
96    switch (id) {
97    case ApplicationCacheHost::CHECKING_EVENT:
98        return eventNames().checkingEvent;
99    case ApplicationCacheHost::ERROR_EVENT:
100        return eventNames().errorEvent;
101    case ApplicationCacheHost::NOUPDATE_EVENT:
102        return eventNames().noupdateEvent;
103    case ApplicationCacheHost::DOWNLOADING_EVENT:
104        return eventNames().downloadingEvent;
105    case ApplicationCacheHost::PROGRESS_EVENT:
106        return eventNames().progressEvent;
107    case ApplicationCacheHost::UPDATEREADY_EVENT:
108        return eventNames().updatereadyEvent;
109    case ApplicationCacheHost::CACHED_EVENT:
110        return eventNames().cachedEvent;
111    case ApplicationCacheHost::OBSOLETE_EVENT:
112        return eventNames().obsoleteEvent;
113    }
114    ASSERT_NOT_REACHED();
115    return eventNames().errorEvent;
116}
117
118EventTargetData* DOMApplicationCache::eventTargetData()
119{
120    return &m_eventTargetData;
121}
122
123EventTargetData* DOMApplicationCache::ensureEventTargetData()
124{
125    return &m_eventTargetData;
126}
127
128} // namespace WebCore
129
130#endif // ENABLE(OFFLINE_WEB_APPLICATIONS)
131