142 lines
4.4 KiB
JavaScript
142 lines
4.4 KiB
JavaScript
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// -*- 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 St = imports.gi.St;
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const Lang = imports.lang;
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const Main = imports.ui.main;
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const Tweener = imports.ui.tweener;
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const Meta = imports.gi.Meta;
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const FADE_TIME = 0.1;
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const OsdMonitorLabel = new Lang.Class({
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Name: 'OsdMonitorLabel',
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_init: function(monitor, label) {
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this._actor = new St.Widget({ opacity: 0,
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x_expand: true,
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y_expand: true });
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this._monitor = monitor;
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this._box = new St.BoxLayout({ style_class: 'osd-window',
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vertical: true });
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this._actor.add_actor(this._box);
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this._label = new St.Label({ style_class: 'osd-monitor-label',
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text: label });
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this._box.add(this._label);
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Main.uiGroup.add_child(this._actor);
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Main.uiGroup.set_child_above_sibling(this._actor, null);
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this._position();
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Meta.disable_unredirect_for_screen(global.screen);
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Tweener.addTween(this._actor,
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{ opacity: 255,
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time: FADE_TIME,
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transition: 'easeOutQuad' });
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},
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_position: function() {
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let workArea = Main.layoutManager.getWorkAreaForMonitor(this._monitor);
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if (Clutter.get_default_text_direction() == Clutter.TextDirection.RTL)
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this._box.x = workArea.x + (workArea.width - this._box.width);
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else
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this._box.x = workArea.x;
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this._box.y = workArea.y;
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},
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destroy: function() {
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Tweener.addTween(this._actor,
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{ opacity: 0,
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time: FADE_TIME,
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transition: 'easeOutQuad',
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onComplete: Lang.bind(this, function() {
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this._actor.destroy();
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Meta.enable_unredirect_for_screen(global.screen);
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})
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});
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}
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});
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const OsdMonitorLabeler = new Lang.Class({
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Name: 'OsdMonitorLabeler',
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_init: function() {
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this._monitorManager = Meta.MonitorManager.get();
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this._client = null;
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this._clientWatchId = 0;
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this._osdLabels = [];
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this._monitorLabels = null;
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Main.layoutManager.connect('monitors-changed',
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Lang.bind(this, this._reset));
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this._reset();
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},
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_reset: function() {
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for (let i in this._osdLabels)
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this._osdLabels[i].destroy();
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this._osdLabels = [];
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this._monitorLabels = new Map();
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let monitors = Main.layoutManager.monitors;
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for (let i in monitors)
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this._monitorLabels.set(monitors[i].index, []);
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},
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_trackClient: function(client) {
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if (this._client)
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return (this._client == client);
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this._client = client;
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this._clientWatchId = Gio.bus_watch_name(Gio.BusType.SESSION, client, 0, null,
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Lang.bind(this, function(c, name) {
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this.hide(name);
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}));
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return true;
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},
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_untrackClient: function(client) {
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if (!this._client || this._client != client)
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return false;
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Gio.bus_unwatch_name(this._clientWatchId);
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this._clientWatchId = 0;
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this._client = null;
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return true;
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},
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show: function(client, params) {
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if (!this._trackClient(client))
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return;
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this._reset();
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for (let id in params) {
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let monitor = this._monitorManager.get_monitor_for_output(id);
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if (monitor == -1)
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continue;
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this._monitorLabels.get(monitor).push(params[id].deep_unpack());
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}
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// In mirrored display setups, more than one physical outputs
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// might be showing the same logical monitor. In that case, we
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// join each output's labels on the same OSD widget.
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for (let [monitor, labels] of this._monitorLabels.entries()) {
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labels.sort();
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this._osdLabels.push(new OsdMonitorLabel(monitor, labels.join(' ')));
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}
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},
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hide: function(client) {
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if (!this._untrackClient(client))
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return;
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this._reset();
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}
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});
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