gnome-shell/js/ui/osdMonitorLabeler.js
Marco Trevisan (Treviño) c4c5c4fd5c cleanup: Use inheritance for Actor classes instead of composition
Remove the `this.actor = ...` and `this.actor._delegate = this` patterns in most
of classes, by inheriting all the actor container classes.

Uses interfaces when needed for making sure that multiple classes will implement
some required methods or to avoid redefining the same code multiple times.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/559
2019-10-16 15:26:13 +00:00

115 lines
3.4 KiB
JavaScript

// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
/* exported OsdMonitorLabeler */
const { Clutter, Gio, GObject, Meta, St } = imports.gi;
const Main = imports.ui.main;
var OsdMonitorLabel = GObject.registerClass(
class OsdMonitorLabel extends St.Widget {
_init(monitor, label) {
super._init({ x_expand: true, y_expand: true });
this._monitor = monitor;
this._box = new St.BoxLayout({ style_class: 'osd-window',
vertical: true });
this.add_actor(this._box);
this._label = new St.Label({ style_class: 'osd-monitor-label',
text: label });
this._box.add(this._label);
Main.uiGroup.add_child(this);
Main.uiGroup.set_child_above_sibling(this, null);
this._position();
Meta.disable_unredirect_for_display(global.display);
this.connect('destroy', () => {
Meta.enable_unredirect_for_display(global.display);
});
}
_position() {
let workArea = Main.layoutManager.getWorkAreaForMonitor(this._monitor);
if (Clutter.get_default_text_direction() == Clutter.TextDirection.RTL)
this._box.x = workArea.x + (workArea.width - this._box.width);
else
this._box.x = workArea.x;
this._box.y = workArea.y;
}
});
var OsdMonitorLabeler = class {
constructor() {
this._monitorManager = Meta.MonitorManager.get();
this._client = null;
this._clientWatchId = 0;
this._osdLabels = [];
this._monitorLabels = null;
Main.layoutManager.connect('monitors-changed',
this._reset.bind(this));
this._reset();
}
_reset() {
for (let i in this._osdLabels)
this._osdLabels[i].destroy();
this._osdLabels = [];
this._monitorLabels = new Map();
let monitors = Main.layoutManager.monitors;
for (let i in monitors)
this._monitorLabels.set(monitors[i].index, []);
}
_trackClient(client) {
if (this._client)
return (this._client == client);
this._client = client;
this._clientWatchId = Gio.bus_watch_name(Gio.BusType.SESSION, client, 0, null,
(c, name) => {
this.hide(name);
});
return true;
}
_untrackClient(client) {
if (!this._client || this._client != client)
return false;
Gio.bus_unwatch_name(this._clientWatchId);
this._clientWatchId = 0;
this._client = null;
return true;
}
show(client, params) {
if (!this._trackClient(client))
return;
this._reset();
for (let connector in params) {
let monitor = this._monitorManager.get_monitor_for_connector(connector);
if (monitor == -1)
continue;
this._monitorLabels.get(monitor).push(params[connector].deep_unpack());
}
for (let [monitor, labels] of this._monitorLabels.entries()) {
labels.sort();
this._osdLabels.push(new OsdMonitorLabel(monitor, labels.join(' ')));
}
}
hide(client) {
if (!this._untrackClient(client))
return;
this._reset();
}
};