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 #ifndef DOMApplicationCache_h

    27 #define DOMApplicationCache_h

    28 

    29 #if ENABLE(OFFLINE_WEB_APPLICATIONS)

    30 

    31 #include "ApplicationCacheHost.h"

    32 #include "AtomicStringHash.h"

    33 #include "EventListener.h"

    34 #include "EventNames.h"

    35 #include "EventTarget.h"

    36 #include <wtf/HashMap.h>

    37 #include <wtf/PassRefPtr.h>

    38 #include <wtf/RefCounted.h>

    39 #include <wtf/Vector.h>

    40 

    41 namespace WebCore {

    42 

    43 class AtomicStringImpl;

    44 class Frame;

    45 class KURL;

    46 class String;

    47 

    48 class DOMApplicationCache : public RefCounted<DOMApplicationCache>, public EventTarget {

    49 public:

    50     static PassRefPtr<DOMApplicationCache> create(Frame* frame) { return adoptRef(new DOMApplicationCache(frame)); }

    51     ~DOMApplicationCache() { ASSERT(!m_frame); }

    52 

    53     Frame* frame() const { return m_frame; }

    54     void disconnectFrame();

    55 

    56     unsigned short status() const;

    57     void update(ExceptionCode&);

    58     void swapCache(ExceptionCode&);

    59 

    60     // EventTarget impl

    61 

    62     using RefCounted<DOMApplicationCache>::ref;

    63     using RefCounted<DOMApplicationCache>::deref;

    64 

    65     // Explicitly named attribute event listener helpers

    66 

    67     DEFINE_ATTRIBUTE_EVENT_LISTENER(checking);

    68     DEFINE_ATTRIBUTE_EVENT_LISTENER(error);

    69     DEFINE_ATTRIBUTE_EVENT_LISTENER(noupdate);

    70     DEFINE_ATTRIBUTE_EVENT_LISTENER(downloading);

    71     DEFINE_ATTRIBUTE_EVENT_LISTENER(progress);

    72     DEFINE_ATTRIBUTE_EVENT_LISTENER(updateready);

    73     DEFINE_ATTRIBUTE_EVENT_LISTENER(cached);

    74     DEFINE_ATTRIBUTE_EVENT_LISTENER(obsolete);

    75 

    76     virtual ScriptExecutionContext* scriptExecutionContext() const;

    77     DOMApplicationCache* toDOMApplicationCache() { return this; }

    78 

    79     static const AtomicString& toEventType(ApplicationCacheHost::EventID id);

    80 

    81 private:

    82     DOMApplicationCache(Frame*);

    83 

    84     virtual void refEventTarget() { ref(); }

    85     virtual void derefEventTarget() { deref(); }

    86     virtual EventTargetData* eventTargetData();

    87     virtual EventTargetData* ensureEventTargetData();

    88 

    89     ApplicationCacheHost* applicationCacheHost() const;

    90 

    91     Frame* m_frame;

    92     EventTargetData m_eventTargetData;

    93 };

    94 

    95 } // namespace WebCore

    96 

    97 #endif // ENABLE(OFFLINE_WEB_APPLICATIONS)

    98 

    99 #endif // DOMApplicationCache_h