Dummy/placeholder track/view

[ThHarbig]

At the moment it is not (easily) possible to place other non-gosling-related views in-between gosling views. A use case for this would be placing metadata views or views with alt texts next to gosling views.

One idea I had is having a placeholder view/track that can be accessed using an ID

[sehilyi]

We can add an additional track type here, e.g., DummyTrack. The usage could be like:

{
   views: [
     {  tracks: [{type: 'dummy'}] }
  ]
}

[sehilyi]

Some properties that need to be included:

• id: To use JS APIs (e.g., ref.current.api.getTrack('placeholder-1'))
• style: Mainly to determine how to style the dummy track (e.g., background and border we currently use in other tracks)
• height and width: Determines the size of the track
• label (or more intuitive name): for showing a text label for a placeholder