Since I want to use more agent's functions in MediaElement and I don't think these functions need to be exposed on IDL level. (for other languages binding)
Therefore, I want to use AudioChannelAgent directly in MediaElement.
MozReview-Commit-ID: 43FvDeLpZPt
Regression by bug1262053 because of removing the current playing checking.
It would cause that the media control on Fennec shows too early and some media
elements would also generate the media control even it doens't have available
source.
Therefore, I think we still need to add this checking back.
MozReview-Commit-ID: 1m1ywmLmpSe
8eef5d2cc850 in Bug 1300654 incorrectly resolved a merge conflict and backed
out part of the fix for Bug 1280829. Relanding.
MozReview-Commit-ID: 6DIkUrc9R4t
Also replace the check for IsPotentiallyPlaying() with !mPaused because mReadyState >= HAVE_FUTURE_DATA guarantees playback is not ended.
MozReview-Commit-ID: HetaVDgYEW0
Previously, we'd block loading of non-MSE content when there was a MediaKeys
attached, that is, we'd assume that all content was EME content if a MediaKeys
was attached. But some sites attach a MediaKeys and then load non-MSE non-EME
content, and that (despite being a bit silly) shouldn't fail.
MozReview-Commit-ID: 9LupWaehXim
Instead of "not visible", "approximately visible", and "visible" (in display port) we now have "approximately not visible", and "approximately visible" which includes "visible".
Instead of "not visible", "approximately visible", and "visible" (in display port) we now have "approximately not visible", and "approximately visible" which includes "visible".
Enable nsAttrValue::EnumTable to be initialized with enum. So, we could get rid
of the castings in EnumTable. Fix EnumTable initialization comment.
For those untyped enumerations, declare them with uint8_t, as to other typed
enumerations with type size larger than int16_t, force casting to int16_t.
Use {nullptr,0} instead of {0} to represent the last entry.
MozReview-Commit-ID: 7Dma3Apkmxj
In ancient degisn, we would only register audio channel after the media element has audio track and enoguh data to playback,
that is because the "audio-playback" event would be dispatched with the registration, and then shows the tab audio indicator.
However, now the event dispatching doesn't follow with the registration, it would be triggered when the media element has
really audible data which would be notified from media decoder.
Therefore, the media element without audio track or without enough data can also register audio channel agent, it won't affect
the display of tab audio indicator. The reason we need to do that is for blocking autoplay media in the non-visited tab.
The autoplay can be adding "autoplay" keyword or playing by the script, and we don't want to dispatch dom event for blocked
media. Therefore, we should register audio channel agent to know whether it needs to be blocked immediately even the media
element doesn't have any enough data which can let us to distinguish it have any audio track or not (this information can
be known from metadata).
First, we must check whether the media is blocked which is notified by audio channel agent, and then we can decide whether
need to dispatch the event. If we don't register audio channel agent, that we can't get blocking information.
MozReview-Commit-ID: HLLkOuecql1
