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map#isMoving #3068

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map#isMoving #3068

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e17e9be
add method for isMoving
mapsam Aug 25, 2016
33d0ab3
update JSDOC
mapsam Aug 25, 2016
3a6128c
this not map
mapsam Aug 25, 2016
4bf98a0
add map.easing property
mapsam Sep 6, 2016
b9a64c6
map.easing in flyTo
mapsam Sep 6, 2016
ddd6466
remove extra space
mapsam Sep 6, 2016
8415d44
remove map.easing property, use isEasing() method
mapsam Sep 6, 2016
8c35c18
check if map is moving during flyTo
mapsam Sep 6, 2016
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15 changes: 15 additions & 0 deletions js/ui/map.js
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Original file line number Diff line number Diff line change
Expand Up @@ -984,6 +984,21 @@ util.extend(Map.prototype, /** @lends Map.prototype */{
return true;
},

/**
* Returns a Boolean indicating whether the map is currently in a "moving" state.
* Returns `false` if zooming, rotating, pitching, and dragging are all inactive.
*
* @returns {boolean} A Boolean indicating whether the map is moving.
*/
isMoving: function() {
if (this.zooming ||
this.rotating ||
this.pitching ||
this.dragPan._active ||
this.dragRotate._active) return true;
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Interesting that we need to mix the "interaction handler" layer of abstraction the "camera" layer of abstraction to compute Map#isMoving. Should Map#isMoving return true if the user starts a "drag rotate" interaction but doesn't actually rotate the map? Or if the user starts a "drag pan" interaction but doesn't pan the map?

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Good questions! I'm not familiar enough with these interactions enough to know the differences. The only way I was able to capture "pan" and "rotate" actions was through those dragPan and dragRotate parameters, though. Are there other places to look for them?

Should Map#isMoving return true if the user starts a "drag rotate" interaction but doesn't actually rotate the map?

I'm not sure - any chance you could provide a case where this happens?

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The only way I was able to capture "pan" and "rotate" actions was through those dragPan and dragRotate parameters, though. Are there other places to look for them?

We may need to create the place to look for this state by

  • creating map.panning property
  • ensuring that map.rotating and map.rotating works with the dragRotate handler

I'm not sure - any chance you could provide a case where this happens?

Imagine I click and drag the map by 5 pixels, initiating a "drag pan" gesture, put a rock on my mouse button, and go for lunch. Map#isMoving will be true the whole time I'm gone but the map won't be moving. Is that the behaviour we want? I'm not sure. It deserves some discussion.

return false;
},

/**
* Update this map's style and sources, and re-render the map.
*
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