1 /*

     2  * Copyright (C) 2006, 2007 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 COMPUTER, 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 COMPUTER, 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 WebIconDatabase_H

    27 #define WebIconDatabase_H

    28 

    29 #include "IWebIconDatabase.h"

    30 

    31 #pragma warning(push, 0)

    32 #include <WebCore/IconDatabaseClient.h>

    33 #include <WebCore/IntSize.h>

    34 #include <WebCore/IntSizeHash.h>

    35 #include <WebCore/Threading.h>

    36 #pragma warning(pop)

    37 

    38 #include <WTF/HashMap.h>

    39 

    40 #include <windows.h>

    41 

    42 typedef const struct __CFString * CFStringRef;

    43 

    44 namespace WebCore

    45 {

    46     class IconDatabase;

    47 }; //namespace WebCore

    48 using namespace WebCore;

    49 using namespace WTF;

    50 

    51 class WebIconDatabase : public IWebIconDatabase, public WebCore::IconDatabaseClient

    52 {

    53 public:

    54     static WebIconDatabase* createInstance();

    55     static WebIconDatabase* sharedWebIconDatabase();

    56 private:

    57     WebIconDatabase();

    58     ~WebIconDatabase();

    59     void init();

    60 public:

    61 

    62     // IUnknown

    63     virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject);

    64     virtual ULONG STDMETHODCALLTYPE AddRef(void);

    65     virtual ULONG STDMETHODCALLTYPE Release(void);

    66 

    67     // IWebIconDatabase

    68     virtual HRESULT STDMETHODCALLTYPE sharedIconDatabase( 

    69         /* [retval][out] */ IWebIconDatabase **result);

    70     

    71     virtual HRESULT STDMETHODCALLTYPE iconForURL( 

    72         /* [in] */ BSTR url,

    73         /* [optional][in] */ LPSIZE size,

    74         /* [optional][in] */ BOOL cache,

    75         /* [retval][out] */ OLE_HANDLE *image);

    76     

    77     virtual HRESULT STDMETHODCALLTYPE defaultIconWithSize( 

    78         /* [in] */ LPSIZE size,

    79         /* [retval][out] */ OLE_HANDLE *result);

    80     

    81     virtual HRESULT STDMETHODCALLTYPE retainIconForURL( 

    82         /* [in] */ BSTR url);

    83     

    84     virtual HRESULT STDMETHODCALLTYPE releaseIconForURL( 

    85         /* [in] */ BSTR url);

    86 

    87     virtual HRESULT STDMETHODCALLTYPE removeAllIcons( void);

    88     

    89     virtual HRESULT STDMETHODCALLTYPE delayDatabaseCleanup( void);

    90     

    91     virtual HRESULT STDMETHODCALLTYPE allowDatabaseCleanup( void);

    92 

    93     virtual HRESULT STDMETHODCALLTYPE iconURLForURL( 

    94         /* [in] */ BSTR url,

    95         /* [retval][out] */ BSTR *iconURL);

    96 

    97     // IconDatabaseClient

    98     virtual void dispatchDidRemoveAllIcons();

    99     virtual void dispatchDidAddIconForPageURL(const WebCore::String&);

   100 

   101     static BSTR iconDatabaseDidAddIconNotification();

   102     static BSTR iconDatabaseDidRemoveAllIconsNotification();

   103     static CFStringRef iconDatabaseNotificationUserInfoURLKey();

   104 protected:

   105     ULONG m_refCount;

   106     static WebIconDatabase* m_sharedWebIconDatabase;

   107 

   108     // Keep a set of HBITMAPs around for the default icon, and another

   109     // to share amongst present site icons

   110     HBITMAP getOrCreateSharedBitmap(LPSIZE size);

   111     HBITMAP getOrCreateDefaultIconBitmap(LPSIZE size);

   112     HashMap<IntSize, HBITMAP> m_defaultIconMap;

   113     HashMap<IntSize, HBITMAP> m_sharedIconMap;

   114 

   115     Mutex m_notificationMutex;

   116     Vector<String> m_notificationQueue;

   117     void scheduleNotificationDelivery();

   118     bool m_deliveryRequested;

   119 

   120     static void deliverNotifications();

   121 };

   122 

   123 #endif