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 

    40 namespace WebCore {

    41 

    42 DOMApplicationCache::DOMApplicationCache(Frame* frame)

    43     : m_frame(frame)

    44 {

    45     ApplicationCacheHost* cacheHost = applicationCacheHost();

    46     if (cacheHost)

    47         cacheHost->setDOMApplicationCache(this);

    48 }

    49 

    50 void DOMApplicationCache::disconnectFrame()

    51 {

    52     ApplicationCacheHost* cacheHost = applicationCacheHost();

    53     if (cacheHost)

    54         cacheHost->setDOMApplicationCache(0);

    55     m_frame = 0;

    56 }

    57 

    58 ApplicationCacheHost* DOMApplicationCache::applicationCacheHost() const

    59 {

    60     if (!m_frame || !m_frame->loader()->documentLoader())

    61         return 0;

    62     return m_frame->loader()->documentLoader()->applicationCacheHost();

    63 }

    64 

    65 unsigned short DOMApplicationCache::status() const

    66 {

    67     ApplicationCacheHost* cacheHost = applicationCacheHost();

    68     if (!cacheHost)

    69         return ApplicationCacheHost::UNCACHED;

    70     return cacheHost->status();

    71 }

    72 

    73 void DOMApplicationCache::update(ExceptionCode& ec)

    74 {

    75     ApplicationCacheHost* cacheHost = applicationCacheHost();

    76     if (!cacheHost || !cacheHost->update())

    77         ec = INVALID_STATE_ERR;

    78 }

    79 

    80 void DOMApplicationCache::swapCache(ExceptionCode& ec)

    81 {

    82     ApplicationCacheHost* cacheHost = applicationCacheHost();

    83     if (!cacheHost || !cacheHost->swapCache())

    84         ec = INVALID_STATE_ERR;

    85 }

    86 

    87 ScriptExecutionContext* DOMApplicationCache::scriptExecutionContext() const

    88 {

    89     if (m_frame)

    90         return m_frame->document();

    91     return 0;

    92 }

    93 

    94 const 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 

   118 EventTargetData* DOMApplicationCache::eventTargetData()

   119 {

   120     return &m_eventTargetData;

   121 }

   122 

   123 EventTargetData* DOMApplicationCache::ensureEventTargetData()

   124 {

   125     return &m_eventTargetData;

   126 }

   127 

   128 } // namespace WebCore

   129 

   130 #endif // ENABLE(OFFLINE_WEB_APPLICATIONS)