[Webkit-unassigned] [Bug 72554] New: Implement addCue and removeCue in TextTrack

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=72554

           Summary: Implement addCue and removeCue in TextTrack
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media Elements
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: annacc at chromium.org
            Blocks: 43668


4.8.10.12.5 Text track API

The addCue(cue) method of TextTrack objects, when invoked, must run the following steps:
If the given cue is already associated with a text track other than the method's TextTrack object's text track, then throw an InvalidStateError exception and abort these steps.
Associate cue with the method's TextTrack object's text track, if it is not currently associated with a text track.
If the given cue is already listed in the method's TextTrack object's text track's text track list of cues, then throw an InvalidStateError exception.
Add cue to the method's TextTrack object's text track's text track list of cues.

The removeCue(cue) method of TextTrack objects, when invoked, must run the following steps:
If the given cue is not associated with the method's TextTrack object's text track, then throw an InvalidStateError exception.
If the given cue is not currently listed in the method's TextTrack object's text track's text track list of cues, then throw a NotFoundError exception.
Remove cue from the method's TextTrack object's text track's text track list of cues.

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