Right click pan

[fredj]

Only pan the map when the action button of the mouse is pressed (aka left button)

(see ol.MapBrowserEvent.prototype.isMouseActionButton)

[twpayne]

I think you should create an ol.interaction.condition for this, see:
https://github.com/openlayers/ol3/blob/master/src/ol/interaction/condition.js

I think you'll need to create ol.interaction.condition.isMouseActionButton and a suitable way of combining conditions so that both ol.interaction.condition.noModifierKeys and ol.interaction.condition.isMouseActionButton` can be combined (a simple function should be OK for the moment).

[twpayne]

Hmmm, on further reflection with @fredj and @elemoine, we agree that an ol.interaction.condition is not (yet) needed here. We noted:

• The other mouse interactions call isMouseActionButton() directly.
• If people do want to configure mouse-based interactions to use a different button then we can implement ol.interaction.condition.isMouseActionButton and similar at that time. However, in practice they are unlikely to want to do this for the core navigation actions because: (1) some popular platforms (e.g. Mac OS X) only have one button and (2) it will be confusing for the user if the map navigation is non-standard.

So, all this to say: LGTM.