3b1330880f
When not using arrow notation with anonymous functions, we use Lang.bind() to bind `this` to named callbacks. However since ES5, this functionality is already provided by Function.prototype.bind() - in fact, Lang.bind() itself uses it when no extra arguments are specified. Just use the built-in function directly where possible, and use arrow notation in the few places where we pass additional arguments. https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/23
71 lines
2.5 KiB
JavaScript
71 lines
2.5 KiB
JavaScript
// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
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const Lang = imports.lang;
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const Gio = imports.gi.Gio;
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const St = imports.gi.St;
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const PanelMenu = imports.ui.panelMenu;
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const PopupMenu = imports.ui.popupMenu;
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const Slider = imports.ui.slider;
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const BUS_NAME = 'org.gnome.SettingsDaemon.Power';
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const OBJECT_PATH = '/org/gnome/SettingsDaemon/Power';
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const BrightnessInterface = '<node> \
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<interface name="org.gnome.SettingsDaemon.Power.Screen"> \
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<property name="Brightness" type="i" access="readwrite"/> \
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</interface> \
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</node>';
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const BrightnessProxy = Gio.DBusProxy.makeProxyWrapper(BrightnessInterface);
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var Indicator = new Lang.Class({
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Name: 'BrightnessIndicator',
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Extends: PanelMenu.SystemIndicator,
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_init() {
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this.parent('display-brightness-symbolic');
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this._proxy = new BrightnessProxy(Gio.DBus.session, BUS_NAME, OBJECT_PATH,
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(proxy, error) => {
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if (error) {
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log(error.message);
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return;
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}
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this._proxy.connect('g-properties-changed', this._sync.bind(this));
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this._sync();
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});
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this._item = new PopupMenu.PopupBaseMenuItem({ activate: false });
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this.menu.addMenuItem(this._item);
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this._slider = new Slider.Slider(0);
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this._slider.connect('value-changed', this._sliderChanged.bind(this));
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this._slider.actor.accessible_name = _("Brightness");
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let icon = new St.Icon({ icon_name: 'display-brightness-symbolic',
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style_class: 'popup-menu-icon' });
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this._item.actor.add(icon);
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this._item.actor.add(this._slider.actor, { expand: true });
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this._item.actor.connect('button-press-event', (actor, event) => {
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return this._slider.startDragging(event);
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});
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this._item.actor.connect('key-press-event', (actor, event) => {
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return this._slider.onKeyPressEvent(actor, event);
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});
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},
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_sliderChanged(slider, value) {
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let percent = value * 100;
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this._proxy.Brightness = percent;
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},
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_sync() {
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let visible = this._proxy.Brightness >= 0;
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this._item.actor.visible = visible;
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if (visible)
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this._slider.setValue(this._proxy.Brightness / 100.0);
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},
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});
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