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