Source/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.h - Issue 157423003: Remove the dependency on encryptedmedia from HTMLMediaElement.

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Issue 157423003: Remove the dependency on encryptedmedia from HTMLMediaElement. (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: Fix compilation error on linux Created 6 years, 9 months ago

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	1 // Copyright 2014 The Chromium Authors. All rights reserved.

	2 // Use of this source code is governed by a BSD-style license that can be

	3 // found in the LICENSE file.

	4

	5 #ifndef HTMLMediaElementEncryptedMedia_h

	6 #define HTMLMediaElementEncryptedMedia_h

	7

	8 #include "core/events/EventTarget.h"

	9 #include "heap/Handle.h"

	10 #include "platform/Supplementable.h"

	11 #include "platform/graphics/media/MediaPlayer.h"

	12 #include "public/platform/WebMediaPlayerClient.h"

	13 #include "wtf/Forward.h"

	14

	15 namespace WebCore {

	16

	17 class ExceptionState;

	18 class HTMLMediaElement;

	19 class MediaKeys;

	20

	21 class HTMLMediaElementEncryptedMedia : public Supplement<HTMLMediaElement> {

	22 public:

	23 // encrypted media extensions (v0.1b)

	24 static void webkitGenerateKeyRequest(HTMLMediaElement&, const String& keySys tem, PassRefPtr<Uint8Array> initData, ExceptionState&);

	25 static void webkitGenerateKeyRequest(HTMLMediaElement&, const String& keySys tem, ExceptionState&);

	26 static void webkitAddKey(HTMLMediaElement&, const String& keySystem, PassRef Ptr<Uint8Array> key, PassRefPtr<Uint8Array> initData, const String& sessionId, E xceptionState&);

	27 static void webkitAddKey(HTMLMediaElement&, const String& keySystem, PassRef Ptr<Uint8Array> key, ExceptionState&);

	28 static void webkitCancelKeyRequest(HTMLMediaElement&, const String& keySyste m, const String& sessionId, ExceptionState&);

	29

	30 DEFINE_STATIC_ATTRIBUTE_EVENT_LISTENER(webkitkeyadded);

	31 DEFINE_STATIC_ATTRIBUTE_EVENT_LISTENER(webkitkeyerror);

	32 DEFINE_STATIC_ATTRIBUTE_EVENT_LISTENER(webkitkeymessage);

	33 DEFINE_STATIC_ATTRIBUTE_EVENT_LISTENER(webkitneedkey);

	34

	35 // encrypted media extensions (WD)

	36 static MediaKeys* mediaKeys(HTMLMediaElement&);

	37 static void setMediaKeys(HTMLMediaElement&, MediaKeys*, ExceptionState&);

	38 DEFINE_STATIC_ATTRIBUTE_EVENT_LISTENER(needkey);

	39

	40 static void keyAdded(HTMLMediaElement&, const String& keySystem, const Strin g& sessionId);

	41 static void keyError(HTMLMediaElement&, const String& keySystem, const Strin g& sessionId, blink::WebMediaPlayerClient::MediaKeyErrorCode, unsigned short sys temCode);

	42 static void keyMessage(HTMLMediaElement&, const String& keySystem, const Str ing& sessionId, const unsigned char* message, unsigned messageLength, const blin k::WebURL& defaultURL);

	43 static void keyNeeded(HTMLMediaElement&, const String& contentType, const un signed char* initData, unsigned initDataLength);

	44 static void playerDestroyed(HTMLMediaElement&);

	45 static blink::WebContentDecryptionModule* contentDecryptionModule(HTMLMediaE lement&);

	46

	47 virtual ~HTMLMediaElementEncryptedMedia();

	48 static HTMLMediaElementEncryptedMedia& from(HTMLMediaElement&);

	49 static const char* supplementName();

	50

	51 private:

	52 HTMLMediaElementEncryptedMedia();

	53 void generateKeyRequest(blink::WebMediaPlayer*, const String& keySystem, Pas sRefPtr<Uint8Array> initData, ExceptionState&);

	54 void addKey(blink::WebMediaPlayer*, const String& keySystem, PassRefPtr<Uint 8Array> key, PassRefPtr<Uint8Array> initData, const String& sessionId, Exception State&);

	55 void cancelKeyRequest(blink::WebMediaPlayer*, const String& keySystem, const String& sessionId, ExceptionState&);

	56

	57 // EventTarget

	58 bool setAttributeEventListener(const AtomicString& eventType, PassRefPtr<Eve ntListener>);

	59 EventListener* getAttributeEventListener(const AtomicString& eventType);

	60

	61 // Currently we have both EME v0.1b and EME WD implemented in media element.

	62 // But we do not want to support both at the same time. The one used first

	63 // will be supported. Use \|m_emeMode\| to track this selection.

	64 // FIXME: Remove EmeMode once EME v0.1b support is removed. See crbug.com/24 9976.

	65 enum EmeMode { EmeModeNotSelected, EmeModePrefixed, EmeModeUnprefixed };

	66

	67 // check (and set if necessary) the encrypted media extensions (EME) mode

	68 // (v0.1b or WD). Returns whether the mode is allowed and successfully set.

	69 bool setEmeMode(EmeMode, ExceptionState&);

	70

	71 blink::WebContentDecryptionModule* contentDecryptionModule();

	72 void setMediaKeysInternal(HTMLMediaElement&, MediaKeys*);

	73

	74 EmeMode m_emeMode;

	75

	76 RefPtrWillBePersistent<MediaKeys> m_mediaKeys;

	77 };

	78

	79 }

	80

	81 #endif

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