void SetMediaKeysHandler::setNewMediaKeys()
{
WTF_LOG(Media, "SetMediaKeysHandler::setNewMediaKeys");
// 3.3 If mediaKeys is not null, run the following steps:
if (m_newMediaKeys) {
// 3.3.1 Associate the CDM instance represented by mediaKeys with the
// media element for decrypting media data.
// 3.3.2 If the preceding step failed, run the following steps:
// (done in setFailed()).
// 3.3.3 Run the Attempt to Resume Playback If Necessary algorithm on
// the media element. The user agent may choose to skip this
// step if it knows resuming will fail (i.e. mediaKeys has no
// sessions).
// (Handled in Chromium).
if (m_element->webMediaPlayer()) {
OwnPtr<SuccessCallback> successCallback = bind(&SetMediaKeysHandler::finish, this);
OwnPtr<FailureCallback> failureCallback = bind<ExceptionCode, const String&>(&SetMediaKeysHandler::setFailed, this);
ContentDecryptionModuleResult* result = new SetContentDecryptionModuleResult(successCallback.release(), failureCallback.release());
m_element->webMediaPlayer()->setContentDecryptionModule(m_newMediaKeys->contentDecryptionModule(), result->result());
// Don't do anything more until |result| is resolved (or rejected).
return;
}
}
// MediaKeys doesn't need to be set on the player, so continue on.
finish();
}
void SetMediaKeysHandler::clearExistingMediaKeys()
{
WTF_LOG(Media, "SetMediaKeysHandler::clearExistingMediaKeys");
HTMLMediaElementEncryptedMedia& thisElement = HTMLMediaElementEncryptedMedia::from(*m_element);
// 3.1 If mediaKeys is not null, it is already in use by another media
// element, and the user agent is unable to use it with this element,
// reject promise with a new DOMException whose name is
// "QuotaExceededError".
if (m_newMediaKeys) {
if (!m_newMediaKeys->reserveForMediaElement(m_element.get())) {
fail(QuotaExceededError, "The MediaKeys object is already in use by another media element.");
return;
}
// Note that |m_newMediaKeys| is now considered reserved for
// |m_element|, so it needs to be accepted or cancelled.
m_madeReservation = true;
}
// 3.2 If the mediaKeys attribute is not null, run the following steps:
if (thisElement.m_mediaKeys) {
WebMediaPlayer* mediaPlayer = m_element->webMediaPlayer();
if (mediaPlayer) {
// 3.2.1 If the user agent or CDM do not support removing the
// association, return a promise rejected with a new
// DOMException whose name is "NotSupportedError".
// 3.2.2 If the association cannot currently be removed (i.e.
// during playback), return a promise rejected with a new
// DOMException whose name is "InvalidStateError".
// 3.2.3 Stop using the CDM instance represented by the mediaKeys
// attribute to decrypt media data and remove the association
// with the media element.
// (All 3 steps handled as needed in Chromium.)
OwnPtr<SuccessCallback> successCallback = bind(&SetMediaKeysHandler::setNewMediaKeys, this);
OwnPtr<FailureCallback> failureCallback = bind<ExceptionCode, const String&>(&SetMediaKeysHandler::clearFailed, this);
ContentDecryptionModuleResult* result = new SetContentDecryptionModuleResult(successCallback.release(), failureCallback.release());
mediaPlayer->setContentDecryptionModule(nullptr, result->result());
// Don't do anything more until |result| is resolved (or rejected).
return;
}
}
// MediaKeys not currently set or no player connected, so continue on.
setNewMediaKeys();
}