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      1 /*
      2  * Copyright (C) 2006, 2007, 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 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 "WebKit.h"
     30 
     31 #include <WebCore/IconDatabaseClient.h>
     32 #include <WebCore/IntSize.h>
     33 #include <WebCore/IntSizeHash.h>
     34 #include <wtf/Vector.h>
     35 #include <wtf/Threading.h>
     36 
     37 #include <windows.h>
     38 
     39 typedef const struct __CFString * CFStringRef;
     40 
     41 namespace WebCore
     42 {
     43     class IconDatabase;
     44 }; //namespace WebCore
     45 using namespace WebCore;
     46 using namespace WTF;
     47 
     48 class WebIconDatabase : public IWebIconDatabase, public WebCore::IconDatabaseClient
     49 {
     50 public:
     51     static WebIconDatabase* createInstance();
     52     static WebIconDatabase* sharedWebIconDatabase();
     53 private:
     54     WebIconDatabase();
     55     ~WebIconDatabase();
     56     void init();
     57     void startUpIconDatabase();
     58     void shutDownIconDatabase();
     59 public:
     60 
     61     // IUnknown
     62     virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject);
     63     virtual ULONG STDMETHODCALLTYPE AddRef(void);
     64     virtual ULONG STDMETHODCALLTYPE Release(void);
     65 
     66     // IWebIconDatabase
     67     virtual HRESULT STDMETHODCALLTYPE sharedIconDatabase(
     68         /* [retval][out] */ IWebIconDatabase **result);
     69 
     70     virtual HRESULT STDMETHODCALLTYPE iconForURL(
     71         /* [in] */ BSTR url,
     72         /* [optional][in] */ LPSIZE size,
     73         /* [optional][in] */ BOOL cache,
     74         /* [retval][out] */ OLE_HANDLE *image);
     75 
     76     virtual HRESULT STDMETHODCALLTYPE defaultIconWithSize(
     77         /* [in] */ LPSIZE size,
     78         /* [retval][out] */ OLE_HANDLE *result);
     79 
     80     virtual HRESULT STDMETHODCALLTYPE retainIconForURL(
     81         /* [in] */ BSTR url);
     82 
     83     virtual HRESULT STDMETHODCALLTYPE releaseIconForURL(
     84         /* [in] */ BSTR url);
     85 
     86     virtual HRESULT STDMETHODCALLTYPE removeAllIcons( void);
     87 
     88     virtual HRESULT STDMETHODCALLTYPE delayDatabaseCleanup( void);
     89 
     90     virtual HRESULT STDMETHODCALLTYPE allowDatabaseCleanup( void);
     91 
     92     virtual HRESULT STDMETHODCALLTYPE iconURLForURL(
     93         /* [in] */ BSTR url,
     94         /* [retval][out] */ BSTR *iconURL);
     95 
     96     virtual HRESULT STDMETHODCALLTYPE isEnabled(
     97         /* [retval][out] */ BOOL *result);
     98 
     99     virtual HRESULT STDMETHODCALLTYPE setEnabled(
    100         /* [in] */ BOOL /*flag*/);
    101 
    102     virtual HRESULT STDMETHODCALLTYPE hasIconForURL(
    103         /* [in] */ BSTR url,
    104         /* [retval][out] */ BOOL* result);
    105 
    106     // IconDatabaseClient
    107     virtual bool performImport();
    108     virtual void didRemoveAllIcons();
    109     virtual void didImportIconURLForPageURL(const WTF::String&);
    110     virtual void didImportIconDataForPageURL(const WTF::String&);
    111     virtual void didChangeIconForPageURL(const WTF::String&);
    112     virtual void didFinishURLImport();
    113 
    114     static BSTR iconDatabaseDidAddIconNotification();
    115     static BSTR iconDatabaseDidRemoveAllIconsNotification();
    116     static CFStringRef iconDatabaseNotificationUserInfoURLKey();
    117 protected:
    118     ULONG m_refCount;
    119     static WebIconDatabase* m_sharedWebIconDatabase;
    120 
    121     // Keep a set of HBITMAPs around for the default icon, and another
    122     // to share amongst present site icons
    123     HBITMAP getOrCreateSharedBitmap(LPSIZE size);
    124     HBITMAP getOrCreateDefaultIconBitmap(LPSIZE size);
    125     HashMap<IntSize, HBITMAP> m_defaultIconMap;
    126     HashMap<IntSize, HBITMAP> m_sharedIconMap;
    127 
    128     Mutex m_notificationMutex;
    129     Vector<String> m_notificationQueue;
    130     void scheduleNotificationDelivery();
    131     bool m_deliveryRequested;
    132 
    133     static void deliverNotifications(void*);
    134 };
    135 
    136 #endif
    137