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volumeIndicator: Add mousewheel support

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Allow changing the volume by moving the mousewheel over the volume indicato
to restore the old gnome-volume-control-applet behaviour.

https://bugzilla.gnome.org/show_bug.cgi?id=632733
This commit is contained in:
Adel Gadllah 2010-10-20 21:53:23 +02:00
parent fe1a9c2b4b
commit 10e59c0840
1 changed files with 17 additions and 0 deletions
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17
js/ui/status/volume.js
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@ -1,5 +1,6 @@
/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
const Clutter = imports.gi.Clutter;
const DBus = imports.dbus;
const Lang = imports.lang;
const Mainloop = imports.mainloop;
@ -15,6 +16,7 @@ const Gettext = imports.gettext.domain('gnome-shell');
const _ = Gettext.gettext;
const VOLUME_MAX = 65536.0; /* PA_VOLUME_NORM */
const VOLUME_ADJUSTMENT_STEP = 0.05; /* Volume adjustment step in % */
function Indicator() {
this._init.apply(this, arguments);
@ -64,9 +66,24 @@ Indicator.prototype = {
p.run();
});
this.actor.connect('scroll-event', Lang.bind(this, this._onScrollEvent));
this._control.open();
},
_onScrollEvent: function(actor, event) {
let direction = event.get_scroll_direction();
let currentVolume = this._output.volume;
if (direction == Clutter.ScrollDirection.DOWN) {
this._output.volume = Math.max(0, currentVolume - VOLUME_MAX * VOLUME_ADJUSTMENT_STEP);
this._output.push_volume();
}
else if (direction == Clutter.ScrollDirection.UP) {
this._output.volume = Math.min(VOLUME_MAX, currentVolume + VOLUME_MAX * VOLUME_ADJUSTMENT_STEP);
this._output.push_volume();
}
},
_onControlReady: function() {
this._readOutput();
this._readInput();