Re: Detecting mouse clicks anywhere on screen

["Jasper St. Pierre" <jstpierre mecheye net>]

On Wed, Aug 8, 2012 at 8:55 PM, Kerrick Staley <mail kerrickstaley com> wrote:
> Hi,
> I'm trying to write an extension that will toggle the overview
> whenever mouse button 9 is clicked, but I can't figure out how to
> detect clicks from arbitrary locations on the screen.

You cannot. X does not work that way. You could take a button grab,
but XGrabKeys isn't introspectable, and we don't have introspectable
bindings for it.

> global.stage's button-press-event will fire when you click the mouse
> anywhere within the overview, but when the overview is hidden, only
> clicks on the panel will cause button-press-event to fire.
>
> My current code follows:
>
> const Main = imports.ui.main;
> const Lang = imports.lang;
>
> function init() { }
>
> function enable() {
>     global.stage.connect('button-press-event', Lang.bind(this,
> function(actor, event) {
>         if (event.get_button() == 9)
>             this._toggleOverview();
>     }));
> }
>
> function disable() { }
>
> function _toggleOverview() {
>     if (Main.overview.visible)
>         Main.overview.hide();
>     else
>         Main.overview.show();
> }
>
> - Kerrick
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-- 
  Jasper