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