gnome-shell/js/ui/locatePointer.js

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// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
/* exported LocatePointer */
const Gio = imports.gi.Gio;
const Ripples = imports.ui.ripples;
const Main = imports.ui.main;
const LOCATE_POINTER_KEY = "locate-pointer";
const LOCATE_POINTER_SCHEMA = "org.gnome.desktop.interface";
var LocatePointer = class {
constructor() {
this._settings = new Gio.Settings({ schema_id: LOCATE_POINTER_SCHEMA });
this._settings.connect(`changed::${LOCATE_POINTER_KEY}`, () => this._syncEnabled());
this._syncEnabled();
}
_syncEnabled() {
let enabled = this._settings.get_boolean(LOCATE_POINTER_KEY);
if (enabled == !!this._ripples)
return;
if (enabled) {
this._ripples = new Ripples.Ripples(0.5, 0.5, 'ripple-pointer-location');
this._ripples.addTo(Main.uiGroup);
} else {
this._ripples.destroy();
this._ripples = null;
}
}
show() {
if (!this._ripples)
return;
let [x, y] = global.get_pointer();
this._ripples.playAnimation(x, y);
}
};