文件操作 - extension.js

文件: /usr/share/gnome-shell/extensions/top-icons@gnome-shell-extensions.gcampax.github.com/extension.js

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// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-

const Clutter = imports.gi.Clutter;
const GObject = imports.gi.GObject;
const Shell = imports.gi.Shell;
const St = imports.gi.St;
const Main = imports.ui.main;
const PanelMenu = imports.ui.panelMenu;
const System = imports.system;

let icons = [];
let sysTray = null;

const PANEL_ICON_SIZE = 16;

const STANDARD_TRAY_ICON_IMPLEMENTATIONS = [
    'bluetooth-applet',
    'gnome-sound-applet',
    'nm-applet',
    'gnome-power-manager',
    'keyboard',
    'a11y-keyboard',
    'kbd-scrolllock',
    'kbd-numlock',
    'kbd-capslock',
    'ibus-ui-gtk'
];

function init() {
}

function enable() {
    createTray();
}

function onTrayIconAdded(o, icon) {
    let wmClass = icon.wm_class ? icon.wm_class.toLowerCase() : '';
    if (STANDARD_TRAY_ICON_IMPLEMENTATIONS.includes(wmClass))
        return;

let button = new PanelMenu.Button(0.5, null, true);

let scaleFactor = St.ThemeContext.get_for_stage(global.stage).scale_factor;
    let iconSize = PANEL_ICON_SIZE * scaleFactor;

icon.set_size(iconSize, iconSize);
    icon.set_x_align(Clutter.ActorAlign.CENTER);
    icon.set_y_align(Clutter.ActorAlign.CENTER);
    icon.bind_property('title',
        button.actor, 'accessible-name',
        GObject.BindingFlags.SYNC_CREATE);

let iconBin = new St.Widget({
        layout_manager: new Clutter.BinLayout(),
    });
    iconBin.add_actor(icon);
    button.actor.add_actor(iconBin);

icons.push(icon);

button.actor.connect('button-release-event', function(actor, event) {
        icon.click(event);
    });
    button.actor.connect('key-press-event', function(actor, event) {
        icon.click(event);
    });

icon.connect('destroy', function() {
        button.destroy();
    });

let role = wmClass || `${icon}`;
    Main.panel.addToStatusArea(role, button);
}

function onTrayIconRemoved(o, icon) {
    let parent = icon.get_parent();
    parent.destroy();
    icons.splice(icons.indexOf(icon), 1);
}

function createTray() {
    sysTray = new Shell.TrayManager();
    sysTray.connect('tray-icon-added', onTrayIconAdded);
    sysTray.connect('tray-icon-removed', onTrayIconRemoved);
    sysTray.manage_screen(global.screen, Main.panel.actor);
}

function destroyTray() {
    icons.forEach(icon => { icon.get_parent().destroy(); });
    icons = [];

sysTray = null;
    System.gc(); // force finalizing tray to unmanage screen
}

function disable() {
    destroyTray();
}

文件操作 - extension.js

文件: /usr/share/gnome-shell/extensions/top-icons@gnome-shell-extensions.gcampax.github.com/extension.js

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