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      1 /*
      2  * Copyright (C) 2009 Google 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 are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 
     33 #if ENABLE(NOTIFICATIONS)
     34 
     35 #include "NotificationCenter.h"
     36 
     37 #include "Document.h"
     38 #include "VoidCallback.h"
     39 #include "WorkerContext.h"
     40 
     41 namespace WebCore {
     42 
     43 NotificationCenter::NotificationCenter(ScriptExecutionContext* context, NotificationPresenter* presenter)
     44     : ActiveDOMObject(context, this)
     45     , m_notificationPresenter(presenter) {}
     46 
     47 int NotificationCenter::checkPermission()
     48 {
     49     if (!presenter() || !scriptExecutionContext())
     50         return NotificationPresenter::PermissionDenied;
     51     return m_notificationPresenter->checkPermission(scriptExecutionContext());
     52 }
     53 
     54 void NotificationCenter::requestPermission(PassRefPtr<VoidCallback> callback)
     55 {
     56     if (!presenter() || !scriptExecutionContext())
     57         return;
     58     m_notificationPresenter->requestPermission(scriptExecutionContext(), callback);
     59 }
     60 
     61 void NotificationCenter::disconnectFrame()
     62 {
     63     // m_notificationPresenter should never be 0. But just to be safe, we check it here.
     64     // Due to the mysterious bug http://code.google.com/p/chromium/issues/detail?id=49323.
     65     ASSERT(m_notificationPresenter);
     66     if (!m_notificationPresenter)
     67         return;
     68     m_notificationPresenter->cancelRequestsForPermission(scriptExecutionContext());
     69     m_notificationPresenter = 0;
     70 }
     71 
     72 } // namespace WebCore
     73 
     74 #endif // ENABLE(NOTIFICATIONS)
     75