system: Switch between alternatives on long-press

On systems that support both shutdown and suspend, the latter operation
is currently only accessible via pressing the Alt key. As using the
keyboard may be inconvenient or simply not possible (e.g. on touch),
allow switching between alternatives via long-press as well.

https://bugzilla.gnome.org/show_bug.cgi?id=721173
This commit is contained in:
Florian Müllner 2015-03-02 12:14:54 +01:00
parent 2c5bc4a1a9
commit 2c070d38fb

View File

@ -48,8 +48,14 @@ const AltSwitcher = new Lang.Class({
this._capturedEventId = global.stage.connect('captured-event', Lang.bind(this, this._onCapturedEvent));
this._flipped = false;
this._clickAction = new Clutter.ClickAction();
this._clickAction.connect('long-press', Lang.bind(this, this._onLongPress));
this.actor = new St.Bin();
this.actor.connect('destroy', Lang.bind(this, this._onDestroy));
this.actor.connect('notify::mapped', () => { this._flipped = false; });
},
_sync: function() {
@ -58,14 +64,25 @@ const AltSwitcher = new Lang.Class({
if (this._standard.visible && this._alternate.visible) {
let [x, y, mods] = global.get_pointer();
let altPressed = (mods & Clutter.ModifierType.MOD1_MASK) != 0;
childToShow = altPressed ? this._alternate : this._standard;
if (this._flipped)
childToShow = altPressed ? this._standard : this._alternate;
else
childToShow = altPressed ? this._alternate : this._standard;
} else if (this._standard.visible) {
childToShow = this._standard;
} else if (this._alternate.visible) {
childToShow = this._alternate;
}
if (this.actor.get_child() != childToShow) {
let childShown = this.actor.get_child();
if (childShown != childToShow) {
if (childShown) {
if (childShown.fake_release)
childShown.fake_release();
childShown.remove_action(this._clickAction);
}
childToShow.add_action(this._clickAction);
let hasFocus = this.actor.contains(global.stage.get_key_focus());
this.actor.set_child(childToShow);
if (hasFocus)
@ -96,6 +113,16 @@ const AltSwitcher = new Lang.Class({
return Clutter.EVENT_PROPAGATE;
},
_onLongPress: function(action, actor, state) {
if (state == Clutter.LongPressState.QUERY ||
state == Clutter.LongPressState.CANCEL)
return true;
this._flipped = !this._flipped;
this._sync();
return true;
}
});
const Indicator = new Lang.Class({