[OpenLayers-Trac] [OpenLayers] #3091: get cross device touch dragging while letting click events propagate

[OpenLayers]

#3091: get cross device touch dragging while letting click events propagate
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 Reporter:  tschaub  |       Owner:              
     Type:  bug      |      Status:  new         
 Priority:  minor    |   Milestone:  2.11 Release
Component:  Map      |     Version:  2.10        
 Keywords:           |       State:              
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 We got dragging on touch devices with r11189 and then lost it for Android
 with r11207.  On iOS, you can call {{{event.preventDefault()}}} on
 {{{touchstart}}} or {{{touchmove}}} to keep the browser from scrolling on
 a drag.  On Android, only preventing the default for {{{touchstart}}}
 stops scrolling.  On both, preventing {{{touchstart}}} kills the mouse
 sequence of events that would otherwise follow.  So, if you're listening
 for click events on the parent or child of an element that you don't want
 to scroll, you're out of luck.

 Unless configured otherwise, controls added to the map get appended to the
 {{{viewPortDiv}}}.  Because we listen to map events on this same element,
 we can't both prevent scrolling and listen to click events on controls
 across touch enabled devices.

 A solution is to create an events target that is a sibling of the controls
 instead of a parent.

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Ticket URL: <http://trac.openlayers.org/ticket/3091>
OpenLayers <http://openlayers.org/>
A free AJAX map viewer