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      1 /*
      2  * Copyright 2006, The Android Open Source Project
      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  *  * Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  *  * 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 THE COPYRIGHT HOLDERS ``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 THE COPYRIGHT OWNER 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 "IconDatabaseClient.h"
     30 #include "PlatformString.h"
     31 #include "SkBitmap.h"
     32 #include "utils/threads.h"
     33 #include <jni.h>
     34 #include <wtf/Vector.h>
     35 
     36 namespace WebCore {
     37     class Image;
     38 }
     39 
     40 namespace android {
     41 
     42     class WebIconDatabaseClient {
     43     public:
     44         virtual ~WebIconDatabaseClient() {}
     45         virtual void didAddIconForPageUrl(const WTF::String& pageUrl) = 0;
     46     };
     47 
     48     class WebIconDatabase : public WebCore::IconDatabaseClient {
     49     public:
     50         WebIconDatabase() : mDeliveryRequested(false) {}
     51         // IconDatabaseClient methods
     52         virtual bool performImport();
     53         virtual void didRemoveAllIcons();
     54         virtual void didImportIconURLForPageURL(const WTF::String&);
     55         virtual void didImportIconDataForPageURL(const WTF::String&);
     56         virtual void didChangeIconForPageURL(const WTF::String&);
     57         virtual void didFinishURLImport();
     58 
     59         static void RegisterForIconNotification(WebIconDatabaseClient* client);
     60         static void UnregisterForIconNotification(WebIconDatabaseClient* client);
     61         static void DeliverNotifications(void*);
     62 
     63     private:
     64         // Deliver all the icon notifications
     65         void deliverNotifications();
     66 
     67         // List of clients.
     68         Vector<WebIconDatabaseClient*> mClients;
     69 
     70         // Queue of page urls that have received an icon.
     71         Vector<WTF::String> mNotifications;
     72         android::Mutex          mNotificationsMutex;
     73         // Flag to indicate that we have requested a delivery of notifications.
     74         bool                    mDeliveryRequested;
     75     };
     76 
     77     SkBitmap* webcoreImageToSkBitmap(WebCore::Image* icon);
     78     jobject webcoreImageToJavaBitmap(JNIEnv* env, WebCore::Image* icon);
     79 
     80 };
     81 
     82 #endif
     83