Expose track data to javascript

[Michael S.]

Wish:
Make possible in JS files reading out songname from deck. Like this...
engine.getValue(deck, "songname")

[Michael S. (arbeit-u)]

-

[RJ Skerry-Ryan (rryan)]

We should just expose PlayerInfo and TrackInfoObject to scripts. Since TIO is already thread-safe and uses Qt properties it should be fine and ready to use by JS. PlayerInfo would let scripts hook to signals related to track changes too.

[Sean M. Pappalardo (pegasus-renegadetech)]

I'll take this as I've wanted this functionality for awhile.

[rob (another-rob)]

Has there been any progress on this? I'm about to start on a couple of new controller mappings, and if this is on its way to being implemented, there are a couple of features based off of this that I'd like to include in my mappings if the functionality is available.

...I'm assuming that exposing these objects will enable the "get track details from one deck/load same track into another deck via script" functionality discussed in here: https://bugs.launchpad.net/mixxx/+bug/1117722 (I'm not asking for the full "instant doubles" function, just the ability to load tracks via script.

[Sergey Butylkov (sergunoid)]

This will be a great feature to have.

[Michael S. (arbeit-u)]

Any new information about this? Implemented in Mixxx 2.0?

[Michael S. (arbeit-u)]

Any new informations about this? In Mixxx 2.0?

[Sean M. Pappalardo (pegasus-renegadetech)]

No, it's not been implemented yet. We've been discussing changing the underlying control structure which would also solve this problem, but that's a bigger job. Once we have a clear direction on that, we'll know how to best proceed with this.

[Daniel Schürmann (daschuer)]

After thinking about this again, I am in doubt that a generic control based solution will suite here.
I think this and follow up requirements are to complex to fit into a single data point.

So for now I would prefer a solution similar to RJs proposal in #2:

Extend the API to register a callback "OnCurrentTrackChange" that receives a Track pointer.
Provide an API to query the track metadata.
This API can grow as required and expose more and more Mixxx functions as required.

What do you think?

Has anyone fun and time to work on this?
This should be doable with some C++ knowledge and/or for an experienced java script writer anyway. I could give a helping hand.

[Daniel Schürmann (daschuer)]

related: Bug #1528644

[Swiftb0y (swiftb0y)]

Mixxx now uses GitHub for bug tracking. This bug has been migrated to:
https://github.com/mixxxdj/mixxx/issues/6898