Fix bug preventing the use of property functions in style classes

[kristfal]

mapbox-gl-js version: Master and 23.0

Steps to Trigger Behavior

Map style is set with paint properties:

'paint': {
    'fill-color': {
        'property': 'drval1',
        'stops': [[0, 'red'], [10, 'red']]
    },
    'fill-antialias': false
  },
  'paint.contrast': {
     'fill-color': {
        'property': 'drval1',
        'stops': [[0, 'blue'], [10, 'green']]
    }
  },
  'paint.night': {
     'fill-color': {
        'property': 'drval1',
        'stops': [[0, 'yellow'], [10, 'orange']]
    }
  }

Call setClasses(['night']) or setClasses(['contrast']). The DDS layer does not update it's style.

Expected Behavior

Paint classes containing DDSs should update and render the selected class.

Actual Behavior

Paint classes containg DDSs are not updated.

Minimum fiddle: https://jsfiddle.net/3y6pv6q3/1/

[lucaswoj]

This is likely a subset of #3098

[kristfal]

Any progress or timeline on this? It's been 6 months and it would be really cool to have this working properly.

[anandthakker]

@kristfal I'm not aware of any recent work on this, but note that we are planning to deprecate style classes in the near future.

As an alternative to using classes, please consider using map.setStyle(...), which, as of v0.29.0, should smoothly transition from one style to another, performing only the necessary changes rather than reloading the whole style. (We'll be adding examples of this to the docs soon.)

[kristfal]

@anandthakker Alright thanks for the info. I'll migrate to a classless approach instead. Feel free to close this issue then.

[anandthakker]

@kristfal 👍