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 #ifndef NotificationPresenter_h 32 #define NotificationPresenter_h 33 34 #include <wtf/PassRefPtr.h> 35 #include "VoidCallback.h" 36 37 #if ENABLE(NOTIFICATIONS) 38 39 namespace WebCore { 40 41 class Document; 42 class Notification; 43 class KURL; 44 class ScriptExecutionContext; 45 46 class NotificationPresenter { 47 48 public: 49 enum Permission { 50 PermissionAllowed, // User has allowed notifications 51 PermissionNotAllowed, // User has not yet allowed 52 PermissionDenied // User has explicitly denied permission 53 }; 54 55 virtual ~NotificationPresenter() {} 56 57 // Requests that a notification be shown. 58 virtual bool show(Notification*) = 0; 59 60 // Requests that a notification that has already been shown be canceled. 61 virtual void cancel(Notification*) = 0; 62 63 // Informs the presenter that a Notification object has been destroyed 64 // (such as by a page transition). The presenter may continue showing 65 // the notification, but must not attempt to call the event handlers. 66 virtual void notificationObjectDestroyed(Notification*) = 0; 67 68 // Requests user permission to show desktop notifications from a particular 69 // script context. The callback parameter should be run when the user has 70 // made a decision. 71 virtual void requestPermission(ScriptExecutionContext*, PassRefPtr<VoidCallback>) = 0; 72 73 // Cancel all outstanding requests for the ScriptExecutionContext 74 virtual void cancelRequestsForPermission(ScriptExecutionContext*) = 0; 75 76 // Checks the current level of permission. 77 virtual Permission checkPermission(ScriptExecutionContext*) = 0; 78 }; 79 80 } // namespace WebCore 81 82 #endif // ENABLE(NOTIFICATIONS) 83 84 #endif // NotificationPresenter_h 85
