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 WebNotificationPresenter_h

    32 #define WebNotificationPresenter_h

    33 

    34 #include "WebNotificationPermissionCallback.h"

    35 #include "WebSecurityOrigin.h"

    36 #include "WebString.h"

    37 

    38 namespace WebKit {

    39 

    40 class WebDocument;

    41 class WebNotification;

    42 class WebURL;

    43 

    44 // Provides the services to show desktop notifications to the user.

    45 class WebNotificationPresenter {

    46 public:

    47     enum Permission {

    48         PermissionAllowed,     // User has allowed permission to the origin.

    49         PermissionNotAllowed,  // User has not taken an action on the origin (defaults to not allowed).

    50         PermissionDenied       // User has explicitly denied permission from the origin.

    51     };

    52 

    53     // Shows a notification.

    54     virtual bool show(const WebNotification&) = 0;

    55 

    56     // Cancels a notification previously shown, and removes it if being shown.

    57     virtual void cancel(const WebNotification&) = 0;

    58 

    59     // Indiciates that the notification object subscribed to events for a previously shown notification is

    60     // being destroyed.  Does _not_ remove the notification if being shown, but detaches it from receiving events.

    61     virtual void objectDestroyed(const WebNotification&) = 0;

    62 

    63     // Checks the permission level for the given origin.

    64     virtual Permission checkPermission(const WebURL&) = 0;

    65 

    66     // Requests permission for a given origin.  This operation is asynchronous and the callback provided

    67     // will be invoked when the permission decision is made.  Callback pointer must remain

    68     // valid until called.

    69     virtual void requestPermission(const WebSecurityOrigin&, WebNotificationPermissionCallback*) = 0;

    70 };

    71 

    72 } // namespace WebKit

    73 

    74 #endif