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#include "ExceptionCode.h"
36#include "Notification.h"
37#include "ScriptExecutionContext.h"
38#include "Timer.h"
39#include "VoidCallback.h"
40#include <wtf/PassRefPtr.h>
41#include <wtf/RefCounted.h>
42#include <wtf/RefPtr.h>
43
44#if ENABLE(NOTIFICATIONS) || ENABLE(LEGACY_NOTIFICATIONS)
45
46namespace WebCore {
47
48class NotificationClient;
49class VoidCallback;
50
51class NotificationCenter : public RefCounted<NotificationCenter>, public ActiveDOMObject {
52public:
53    static PassRef<NotificationCenter> create(ScriptExecutionContext*, NotificationClient*);
54
55#if ENABLE(LEGACY_NOTIFICATIONS)
56    PassRefPtr<Notification> createNotification(const String& iconURI, const String& title, const String& body, ExceptionCode& ec)
57    {
58        if (!client()) {
59            ec = INVALID_STATE_ERR;
60            return 0;
61        }
62        return Notification::create(title, body, iconURI, scriptExecutionContext(), ec, this);
63    }
64#endif
65
66    NotificationClient* client() const { return m_client; }
67
68#if ENABLE(LEGACY_NOTIFICATIONS)
69    int checkPermission();
70    void requestPermission(PassRefPtr<VoidCallback> = 0);
71#endif
72
73private:
74    NotificationCenter(ScriptExecutionContext*, NotificationClient*);
75
76    // ActiveDOMObject
77    virtual void stop() override;
78
79    class NotificationRequestCallback : public RefCounted<NotificationRequestCallback> {
80    public:
81        static PassRefPtr<NotificationRequestCallback> createAndStartTimer(NotificationCenter*, PassRefPtr<VoidCallback>);
82        void startTimer();
83        void timerFired(Timer<NotificationRequestCallback>&);
84    private:
85        NotificationRequestCallback(NotificationCenter*, PassRefPtr<VoidCallback>);
86
87        RefPtr<NotificationCenter> m_notificationCenter;
88        Timer<NotificationRequestCallback> m_timer;
89        RefPtr<VoidCallback> m_callback;
90    };
91
92    void requestTimedOut(NotificationRequestCallback*);
93
94    NotificationClient* m_client;
95    HashSet<RefPtr<NotificationRequestCallback>> m_callbacks;
96};
97
98} // namespace WebCore
99
100#endif // ENABLE(NOTIFICATIONS) || ENABLE(LEGACY_NOTIFICATIONS)
101
102#endif // NotificationCenter_h
103