Comments (6)
I'm not even sure what a "callback device" is in the question.
A callback is basically a Javascript function that can be called by the user agent. A numeric identifier is needed to be able to unregister the callback for cleanup. In Chrome we just find the next integer that's not assigned to any previously registered callback that hasn't been cancelled yet. I'd be wary putting this into an algorithm as it may restrict other user agents in their implementation and worse make web pages depend on the order of ids or something.
We can add a note that the identifier MUST not leak any privacy information, however I doubt that's very helpful.
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My reading was that "Callback device" is the device triggering the callback, e.g. a newly discovered remote playback device.
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I think a note clarifying the id generation mechanism would address this concern. I can propose a PR.
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The id
is returned way before any device is found (at least in the simple use case when availability starts as a result of watchAvailability). When the device is found, the callback is fired with a single boolean argument and its id
doesn't change.
Clarifying the id generation would probably help eliminate confusion though I agree.
from remote-playback.
As a follow up on the PR #83, we might want to spec the uniqueness of the id (e.g. within a frame) so that web authors could rely on the behavior suggested by the example.
from remote-playback.
Closing as I believe this is addressed by the PR.
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Related Issues (20)
- Adjust notes with normative content HOT 1
- Use [Exposed=Window]
- Add explicit text to define the disableRemotePlayback content attribute
- Restrict the API to Secure Contexts or discuss the decision in Security Considerations HOT 1
- Rephrase normative statement in security and privacy consideration section HOT 1
- Compatibility of Remote Playback API with AirPlay mirroring HOT 2
- [Chrome 64] The RemotePlayback API is disabled on this platform HOT 4
- Chromecast TV not detected HOT 5
- Define remote playback interaction with background playback policies HOT 3
- Explore polyfilling Remote Playback API on top of Presentation API HOT 1
- Support for TTML and IMSC captions HOT 1
- How does remote playback interact with EME? HOT 4
- RemotePlaybackState enum can become misleading when changing media.src HOT 17
- Specify the task source for each task to be enqueued HOT 1
- [meta] Publish Proposed Recommendation HOT 2
- Allow adapting the bitrate to network/receiver constraints when using MSE
- Export terms HOT 2
- A
- render a dummy video/progress bar HOT 1
- example HOT 2
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