Extra clickable events

[bartbutenaers]

Currently only the left-mouse-click event is supported. Steve asked to support extra events, so perhaps we can add an 'Event' column containing a dropdown:

• Left mouse: already supported
• Right mouse: perhaps we can use the 'contextmenu' event like in this StackOverflow discussion.
• Double click: The SVG standard does not define a double click event (dblclick, and Firefox provide no support for double clicks in SVGs. Although the third-party svg.js library seems to be able to support it, so perhaps nowadays it works ... Otherwise we can perhaps combine somehow click events when two click events happen within a small time interval (so in that case we have a double click event) ...

[Steve-Mcl]

We can at minimum support modifier keys. They appear in the evt

May need to consider touch events too.

[bartbutenaers]

Hey Steve, I hadn't seen your "May need to consider touch events too" comment ...