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
213 lines
8.3 KiB
JavaScript
213 lines
8.3 KiB
JavaScript
// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
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const Clutter = imports.gi.Clutter;
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const Gio = imports.gi.Gio;
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const GLib = imports.gi.GLib;
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const Lang = imports.lang;
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const Mainloop = imports.mainloop;
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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 A11Y_SCHEMA = 'org.gnome.desktop.a11y';
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const KEY_ALWAYS_SHOW = 'always-show-universal-access-status';
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const A11Y_KEYBOARD_SCHEMA = 'org.gnome.desktop.a11y.keyboard';
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const KEY_STICKY_KEYS_ENABLED = 'stickykeys-enable';
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const KEY_BOUNCE_KEYS_ENABLED = 'bouncekeys-enable';
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const KEY_SLOW_KEYS_ENABLED = 'slowkeys-enable';
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const KEY_MOUSE_KEYS_ENABLED = 'mousekeys-enable';
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const APPLICATIONS_SCHEMA = 'org.gnome.desktop.a11y.applications';
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var DPI_FACTOR_LARGE = 1.25;
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const WM_SCHEMA = 'org.gnome.desktop.wm.preferences';
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const KEY_VISUAL_BELL = 'visual-bell';
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const DESKTOP_INTERFACE_SCHEMA = 'org.gnome.desktop.interface';
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const KEY_GTK_THEME = 'gtk-theme';
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const KEY_ICON_THEME = 'icon-theme';
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const KEY_WM_THEME = 'theme';
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const KEY_TEXT_SCALING_FACTOR = 'text-scaling-factor';
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const HIGH_CONTRAST_THEME = 'HighContrast';
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var ATIndicator = new Lang.Class({
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Name: 'ATIndicator',
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Extends: PanelMenu.Button,
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_init() {
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this.parent(0.0, _("Accessibility"));
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this._hbox = new St.BoxLayout({ style_class: 'panel-status-menu-box' });
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this._hbox.add_child(new St.Icon({ style_class: 'system-status-icon',
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icon_name: 'preferences-desktop-accessibility-symbolic' }));
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this._hbox.add_child(PopupMenu.arrowIcon(St.Side.BOTTOM));
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this.actor.add_child(this._hbox);
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this._a11ySettings = new Gio.Settings({ schema_id: A11Y_SCHEMA });
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this._a11ySettings.connect('changed::' + KEY_ALWAYS_SHOW, this._queueSyncMenuVisibility.bind(this));
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let highContrast = this._buildHCItem();
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this.menu.addMenuItem(highContrast);
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let magnifier = this._buildItem(_("Zoom"), APPLICATIONS_SCHEMA,
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'screen-magnifier-enabled');
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this.menu.addMenuItem(magnifier);
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let textZoom = this._buildFontItem();
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this.menu.addMenuItem(textZoom);
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let screenReader = this._buildItem(_("Screen Reader"), APPLICATIONS_SCHEMA,
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'screen-reader-enabled');
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this.menu.addMenuItem(screenReader);
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let screenKeyboard = this._buildItem(_("Screen Keyboard"), APPLICATIONS_SCHEMA,
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'screen-keyboard-enabled');
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this.menu.addMenuItem(screenKeyboard);
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let visualBell = this._buildItem(_("Visual Alerts"), WM_SCHEMA, KEY_VISUAL_BELL);
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this.menu.addMenuItem(visualBell);
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let stickyKeys = this._buildItem(_("Sticky Keys"), A11Y_KEYBOARD_SCHEMA, KEY_STICKY_KEYS_ENABLED);
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this.menu.addMenuItem(stickyKeys);
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let slowKeys = this._buildItem(_("Slow Keys"), A11Y_KEYBOARD_SCHEMA, KEY_SLOW_KEYS_ENABLED);
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this.menu.addMenuItem(slowKeys);
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let bounceKeys = this._buildItem(_("Bounce Keys"), A11Y_KEYBOARD_SCHEMA, KEY_BOUNCE_KEYS_ENABLED);
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this.menu.addMenuItem(bounceKeys);
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let mouseKeys = this._buildItem(_("Mouse Keys"), A11Y_KEYBOARD_SCHEMA, KEY_MOUSE_KEYS_ENABLED);
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this.menu.addMenuItem(mouseKeys);
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this._syncMenuVisibility();
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},
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_syncMenuVisibility() {
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this._syncMenuVisibilityIdle = 0;
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let alwaysShow = this._a11ySettings.get_boolean(KEY_ALWAYS_SHOW);
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let items = this.menu._getMenuItems();
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this.actor.visible = alwaysShow || items.some(f => !!f.state);
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return GLib.SOURCE_REMOVE;
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},
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_queueSyncMenuVisibility() {
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if (this._syncMenuVisibilityIdle)
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return;
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this._syncMenuVisibilityIdle = Mainloop.idle_add(this._syncMenuVisibility.bind(this));
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GLib.Source.set_name_by_id(this._syncMenuVisibilityIdle, '[gnome-shell] this._syncMenuVisibility');
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},
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_buildItemExtended(string, initial_value, writable, on_set) {
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let widget = new PopupMenu.PopupSwitchMenuItem(string, initial_value);
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if (!writable)
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widget.actor.reactive = false;
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else
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widget.connect('toggled', item => {
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on_set(item.state);
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});
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return widget;
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},
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_buildItem(string, schema, key) {
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let settings = new Gio.Settings({ schema_id: schema });
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settings.connect('changed::'+key, () => {
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widget.setToggleState(settings.get_boolean(key));
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this._queueSyncMenuVisibility();
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});
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let widget = this._buildItemExtended(string,
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settings.get_boolean(key),
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settings.is_writable(key),
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enabled => settings.set_boolean(key, enabled));
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return widget;
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},
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_buildHCItem() {
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let interfaceSettings = new Gio.Settings({ schema_id: DESKTOP_INTERFACE_SCHEMA });
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let wmSettings = new Gio.Settings({ schema_id: WM_SCHEMA });
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interfaceSettings.connect('changed::' + KEY_GTK_THEME, () => {
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let value = interfaceSettings.get_string(KEY_GTK_THEME);
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if (value == HIGH_CONTRAST_THEME) {
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highContrast.setToggleState(true);
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} else {
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highContrast.setToggleState(false);
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gtkTheme = value;
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}
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this._queueSyncMenuVisibility();
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});
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interfaceSettings.connect('changed::' + KEY_ICON_THEME, () => {
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let value = interfaceSettings.get_string(KEY_ICON_THEME);
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if (value != HIGH_CONTRAST_THEME)
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iconTheme = value;
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});
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wmSettings.connect('changed::' + KEY_WM_THEME, () => {
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let value = wmSettings.get_string(KEY_WM_THEME);
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if (value != HIGH_CONTRAST_THEME)
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wmTheme = value;
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});
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let gtkTheme = interfaceSettings.get_string(KEY_GTK_THEME);
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let iconTheme = interfaceSettings.get_string(KEY_ICON_THEME);
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let wmTheme = wmSettings.get_string(KEY_WM_THEME);
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let hasHC = (gtkTheme == HIGH_CONTRAST_THEME);
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let highContrast = this._buildItemExtended(
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_("High Contrast"),
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hasHC,
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interfaceSettings.is_writable(KEY_GTK_THEME) &&
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interfaceSettings.is_writable(KEY_ICON_THEME) &&
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wmSettings.is_writable(KEY_WM_THEME),
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enabled => {
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if (enabled) {
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interfaceSettings.set_string(KEY_GTK_THEME, HIGH_CONTRAST_THEME);
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interfaceSettings.set_string(KEY_ICON_THEME, HIGH_CONTRAST_THEME);
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wmSettings.set_string(KEY_WM_THEME, HIGH_CONTRAST_THEME);
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} else if(!hasHC) {
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interfaceSettings.set_string(KEY_GTK_THEME, gtkTheme);
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interfaceSettings.set_string(KEY_ICON_THEME, iconTheme);
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wmSettings.set_string(KEY_WM_THEME, wmTheme);
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} else {
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interfaceSettings.reset(KEY_GTK_THEME);
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interfaceSettings.reset(KEY_ICON_THEME);
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wmSettings.reset(KEY_WM_THEME);
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}
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});
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return highContrast;
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},
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_buildFontItem() {
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let settings = new Gio.Settings({ schema_id: DESKTOP_INTERFACE_SCHEMA });
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settings.connect('changed::' + KEY_TEXT_SCALING_FACTOR, () => {
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let factor = settings.get_double(KEY_TEXT_SCALING_FACTOR);
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let active = (factor > 1.0);
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widget.setToggleState(active);
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this._queueSyncMenuVisibility();
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});
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let factor = settings.get_double(KEY_TEXT_SCALING_FACTOR);
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let initial_setting = (factor > 1.0);
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let widget = this._buildItemExtended(_("Large Text"),
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initial_setting,
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settings.is_writable(KEY_TEXT_SCALING_FACTOR),
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enabled => {
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if (enabled)
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settings.set_double(KEY_TEXT_SCALING_FACTOR,
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DPI_FACTOR_LARGE);
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else
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settings.reset(KEY_TEXT_SCALING_FACTOR);
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});
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return widget;
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}
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});
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