2 * Copyright (C) 2013 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
29 #include "bindings/v8/ScriptWrappable.h"
30 #include "core/dom/ContextLifecycleObserver.h"
31 #include "core/dom/ExecutionContext.h"
32 #include "core/events/EventTarget.h"
33 #include "modules/encryptedmedia/MediaKeySession.h"
34 #include "platform/Timer.h"
35 #include "platform/heap/Handle.h"
36 #include "wtf/Deque.h"
37 #include "wtf/OwnPtr.h"
38 #include "wtf/PassRefPtr.h"
39 #include "wtf/RefCounted.h"
40 #include "wtf/Uint8Array.h"
41 #include "wtf/Vector.h"
42 #include "wtf/text/WTFString.h"
45 class WebContentDecryptionModule;
50 class HTMLMediaElement;
53 // References are held by JS and HTMLMediaElement.
54 // The WebContentDecryptionModule has the same lifetime as this object.
55 class MediaKeys : public RefCountedWillBeGarbageCollectedFinalized<MediaKeys>, public ContextLifecycleObserver, public ScriptWrappable {
57 static PassRefPtrWillBeRawPtr<MediaKeys> create(ExecutionContext*, const String& keySystem, ExceptionState&);
60 const String& keySystem() const { return m_keySystem; }
62 PassRefPtrWillBeRawPtr<MediaKeySession> createSession(ExecutionContext*, const String& contentType, Uint8Array* initData, ExceptionState&);
64 static bool isTypeSupported(const String& keySystem, const String& contentType);
66 void setMediaElement(HTMLMediaElement*);
68 blink::WebContentDecryptionModule* contentDecryptionModule();
72 // ContextLifecycleObserver
73 virtual void contextDestroyed() OVERRIDE;
76 MediaKeys(ExecutionContext*, const String& keySystem, PassOwnPtr<blink::WebContentDecryptionModule>);
77 void initializeNewSessionTimerFired(Timer<MediaKeys>*);
79 HTMLMediaElement* m_mediaElement;
80 const String m_keySystem;
81 OwnPtr<blink::WebContentDecryptionModule> m_cdm;
83 // FIXME: Check whether |initData| can be changed by JS. Maybe we should not pass it as a pointer.
84 struct InitializeNewSessionData {
85 ALLOW_ONLY_INLINE_ALLOCATION();
87 InitializeNewSessionData(PassRefPtrWillBeRawPtr<MediaKeySession> session, const String& contentType, PassRefPtr<Uint8Array> initData)
89 , contentType(contentType)
90 , initData(initData) { }
94 RefPtrWillBeMember<MediaKeySession> session;
96 RefPtr<Uint8Array> initData;
98 Deque<InitializeNewSessionData> m_pendingInitializeNewSessionData;
99 Timer<MediaKeys> m_initializeNewSessionTimer;
102 WeakPtrFactory<MediaKeys> m_weakFactory;
108 #endif // MediaKeys_h