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      1 /*
      2  * Copyright (C) 2009 Google Inc. All rights reserved.
      3  * Copyright (C) 2011, 2012 Apple Inc. All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are
      7  * met:
      8  *
      9  *     * Redistributions of source code must retain the above copyright
     10  * notice, this list of conditions and the following disclaimer.
     11  *     * Redistributions in binary form must reproduce the above
     12  * copyright notice, this list of conditions and the following disclaimer
     13  * in the documentation and/or other materials provided with the
     14  * distribution.
     15  *     * Neither the name of Google Inc. nor the names of its
     16  * contributors may be used to endorse or promote products derived from
     17  * this software without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef NotificationCenter_h
     33 #define NotificationCenter_h
     34 
     35 #if ENABLE(LEGACY_NOTIFICATIONS)
     36 
     37 #include "bindings/v8/ExceptionState.h"
     38 #include "bindings/v8/ScriptWrappable.h"
     39 #include "core/dom/ExceptionCode.h"
     40 #include "core/dom/ExecutionContext.h"
     41 #include "core/html/VoidCallback.h"
     42 #include "modules/notifications/WebKitNotification.h"
     43 #include "platform/Supplementable.h"
     44 #include "platform/Timer.h"
     45 #include "wtf/OwnPtr.h"
     46 #include "wtf/PassRefPtr.h"
     47 #include "wtf/RefCounted.h"
     48 #include "wtf/RefPtr.h"
     49 
     50 namespace WebCore {
     51 
     52 class NotificationClient;
     53 class VoidCallback;
     54 
     55 class NotificationCenter : public RefCounted<NotificationCenter>, public ScriptWrappable, public ActiveDOMObject {
     56 public:
     57     static PassRefPtr<NotificationCenter> create(ExecutionContext*, NotificationClient*);
     58 
     59     PassRefPtr<WebKitNotification> createNotification(const String& iconUrl, const String& title, const String& body, ExceptionState& exceptionState)
     60     {
     61         if (!client()) {
     62             exceptionState.throwUninformativeAndGenericDOMException(InvalidStateError);
     63             return 0;
     64         }
     65         return WebKitNotification::create(title, body, iconUrl, executionContext(), exceptionState, this);
     66     }
     67 
     68     NotificationClient* client() const { return m_client; }
     69 
     70     int checkPermission();
     71     void requestPermission(PassOwnPtr<VoidCallback> = nullptr);
     72 
     73     virtual void stop() OVERRIDE;
     74 
     75 private:
     76     NotificationCenter(ExecutionContext*, NotificationClient*);
     77 
     78     class NotificationRequestCallback : public RefCounted<NotificationRequestCallback> {
     79     public:
     80         static PassRefPtr<NotificationRequestCallback> createAndStartTimer(NotificationCenter*, PassOwnPtr<VoidCallback>);
     81         void startTimer();
     82         void timerFired(Timer<NotificationRequestCallback>*);
     83     private:
     84         NotificationRequestCallback(NotificationCenter*, PassOwnPtr<VoidCallback>);
     85 
     86         RefPtr<NotificationCenter> m_notificationCenter;
     87         Timer<NotificationRequestCallback> m_timer;
     88         OwnPtr<VoidCallback> m_callback;
     89     };
     90 
     91     void requestTimedOut(NotificationRequestCallback*);
     92 
     93     NotificationClient* m_client;
     94     HashSet<RefPtr<NotificationRequestCallback> > m_callbacks;
     95 };
     96 
     97 } // namespace WebCore
     98 
     99 #endif // ENABLE(LEGACY_NOTIFICATIONS)
    100 
    101 #endif // NotificationCenter_h
    102