Control-click messes up facets dive selection

[rmcloughlin]

If you hold down the control key and click somewhere main visualization area then after that you won't be able to select an individual square.

Try it here, for example: https://pair-code.github.io/facets/quickdraw.html

[jameswex]

@jimbojw facets dive selection issue/question

[jimbojw]

Thanks for reporting this, which OS/browser are you using?

[rmcloughlin]

Chrome 85.0.4183.102 Mac OS 10.15.6

[jimbojw]

Thanks, confirmed. I'm not sure what causes this. On a Mac, control-click brings up the same menu as right-click (clicking with two fingers on the touchpad). But right-clicking does not exhibit this behavior.

I suspect that the cause has to do with the D3 zoom behavior. After control-click, the browser's context menu appears. When you press Escape, the context menu disappears, but the app remains in a dragging state (if you move the mouse, the visualization pans). After you click again, the app stops dragging, but click events no longer seem to be bubbling to the visualization's handler (can't select sprites).

I'm guessing that a solution would be to capture control-mousedown and/or control-click events on Mac and prevent them from propagating to the D3 zoom behavior.