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      1 /*
      2  * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
      3  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 #include "config.h"
     28 #include "modules/notifications/DOMWindowNotifications.h"
     29 
     30 #if ENABLE(LEGACY_NOTIFICATIONS)
     31 
     32 #include "core/dom/Document.h"
     33 #include "core/frame/DOMWindow.h"
     34 #include "core/page/Page.h"
     35 #include "modules/notifications/NotificationCenter.h"
     36 #include "modules/notifications/NotificationController.h"
     37 
     38 namespace WebCore {
     39 
     40 DOMWindowNotifications::DOMWindowNotifications(DOMWindow* window)
     41     : DOMWindowProperty(window->frame())
     42     , m_window(window)
     43 {
     44 }
     45 
     46 DOMWindowNotifications::~DOMWindowNotifications()
     47 {
     48 }
     49 
     50 const char* DOMWindowNotifications::supplementName()
     51 {
     52     return "DOMWindowNotifications";
     53 }
     54 
     55 DOMWindowNotifications* DOMWindowNotifications::from(DOMWindow* window)
     56 {
     57     DOMWindowNotifications* supplement = static_cast<DOMWindowNotifications*>(Supplement<DOMWindow>::from(window, supplementName()));
     58     if (!supplement) {
     59         supplement = new DOMWindowNotifications(window);
     60         Supplement<DOMWindow>::provideTo(window, supplementName(), adoptPtr(supplement));
     61     }
     62     return supplement;
     63 }
     64 
     65 NotificationCenter* DOMWindowNotifications::webkitNotifications(DOMWindow* window)
     66 {
     67     return DOMWindowNotifications::from(window)->webkitNotifications();
     68 }
     69 
     70 void DOMWindowNotifications::willDestroyGlobalObjectInFrame()
     71 {
     72     m_notificationCenter = nullptr;
     73     DOMWindowProperty::willDestroyGlobalObjectInFrame();
     74 }
     75 
     76 void DOMWindowNotifications::willDetachGlobalObjectFromFrame()
     77 {
     78     m_notificationCenter = nullptr;
     79     DOMWindowProperty::willDetachGlobalObjectFromFrame();
     80 }
     81 
     82 NotificationCenter* DOMWindowNotifications::webkitNotifications()
     83 {
     84     if (!m_window->isCurrentlyDisplayedInFrame())
     85         return 0;
     86 
     87     if (m_notificationCenter)
     88         return m_notificationCenter.get();
     89 
     90     Document* document = m_window->document();
     91     if (!document)
     92         return 0;
     93 
     94     Page* page = document->page();
     95     if (!page)
     96         return 0;
     97 
     98     NotificationClient* provider = NotificationController::clientFrom(page);
     99     if (provider)
    100         m_notificationCenter = NotificationCenter::create(document, provider);
    101 
    102     return m_notificationCenter.get();
    103 }
    104 
    105 } // namespace WebCore
    106 
    107 #endif // ENABLE(LEGACY_NOTIFICATIONS)
    108