File: extension.js

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gnome-shell-extension-arc-menu 49-1
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/*
 * Arc Menu - A traditional application menu for GNOME 3
 *
 * Arc Menu Lead Developer
 * Andrew Zaech https://gitlab.com/AndrewZaech
 * 
 * Arc Menu Founder/Maintainer/Graphic Designer
 * LinxGem33 https://gitlab.com/LinxGem33
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

const Me = imports.misc.extensionUtils.getCurrentExtension();

const {GLib, Gio, St} = imports.gi;
const Constants = Me.imports.constants;
const Controller = Me.imports.controller;
const Convenience = Me.imports.convenience;
const Main = imports.ui.main;
const Util = imports.misc.util;
const Utils = Me.imports.utils;


// Initialize panel button variables
let settings;
let settingsControllers;
let extensionChangedId;
let dockToggleID;
let dockExtension;

// Initialize menu language translations
function init(metadata) {
    Convenience.initTranslations(Me.metadata['gettext-domain']);      
}

// Enable the extension
function enable() {
    if(imports.gi.Meta.is_wayland_compositor())
        Me.metadata.isWayland = true;
    else
        Me.metadata.isWayland = false;
    let stylesheet = Utils.getStylesheet();
        
    let theme = St.ThemeContext.get_for_stage(global.stage).get_theme();
    if(Me.stylesheet)
        theme.unload_stylesheet(Me.stylesheet);
    Me.stylesheet = stylesheet;
    theme.load_stylesheet(Me.stylesheet);

    settings = Convenience.getSettings(Me.metadata['settings-schema']);
    settings.connect('changed::multi-monitor', () => _onMultiMonitorChange());
    settings.connect('changed::arc-menu-placement', () => _onArcMenuPlacementChange());
    settingsControllers = [];

    let boolArray = settings.get_default_value('dtp-dtd-state').deep_unpack();
    settings.set_value('dtp-dtd-state', new GLib.Variant('ab', boolArray));

    _enableButtons();
    
    // dash to panel might get enabled after Arc-Menu
    extensionChangedId = Main.extensionManager.connect('extension-state-changed', (data, extension) => {
        if (extension.uuid === 'dash-to-panel@jderose9.github.com') {
            let arcMenuPlacement = settings.get_enum('arc-menu-placement');
            if(extension.state === 1){
                this.set_DtD_DtP_State(Constants.EXTENSION.DTP, true);
                if(arcMenuPlacement == Constants.ArcMenuPlacement.PANEL || arcMenuPlacement == Constants.ArcMenuPlacement.DTP){
                    _connectDtpSignals();
                    _enableButtons();
                }
            }
            else if(extension.state === 2) {
                this.set_DtD_DtP_State(Constants.EXTENSION.DTP, false);
            }
        }
        if ((extension.uuid === "dash-to-dock@micxgx.gmail.com" || extension.uuid === "ubuntu-dock@ubuntu.com") && (extension.state === 1 || extension.state === 2)) {
            _disconnectDtdSignals();
            let state = extension.state === 1 ? true : false;
            this.set_DtD_DtP_State(Constants.EXTENSION.DTD, state);
            let arcMenuPlacement = settings.get_enum('arc-menu-placement');
            if(arcMenuPlacement == Constants.ArcMenuPlacement.DASH){
                for (let i = settingsControllers.length - 1; i >= 0; --i) {
                    let sc = settingsControllers[i];
                    _disableButton(sc, 1);
                }
                _enableButtons();
                _connectDtdSignals();
            }
        }
    });

    // listen to dash to panel / dash to dock if they are compatible and already enabled
    _connectDtdSignals();
    _connectDtpSignals();
}
function set_DtD_DtP_State(extension, state){
    let boolArray = settings.get_value('dtp-dtd-state').deep_unpack();
    if(boolArray[extension] !== state){
        boolArray[extension] = state;
        settings.set_value('dtp-dtd-state', new GLib.Variant('ab', boolArray));
    }

}
// Disable the extension
function disable() {
    if ( extensionChangedId > 0){
        Main.extensionManager.disconnect(extensionChangedId);
        extensionChangedId = 0;
    }

    _disconnectDtpSignals();
    _disconnectDtdSignals();

    for (let i = settingsControllers.length - 1; i >= 0; --i) {
        let sc = settingsControllers[i];
        _disableButton(sc, 1);
    }
    settingsControllers = null;

    settings.run_dispose();
    settings = null;
}

function _connectDtpSignals() {
    if (global.dashToPanel) {
        global.dashToPanel._amPanelsCreatedId = global.dashToPanel.connect('panels-created', () => _enableButtons());
    }
}

function _disconnectDtpSignals() {
    if (global.dashToPanel && global.dashToPanel._amPanelsCreatedId) {
        global.dashToPanel.disconnect(global.dashToPanel._amPanelsCreatedId);
        delete global.dashToPanel._amPanelsCreatedId;
    }
}

function _connectDtdSignals(){
    dockExtension = _getDockExtensions();
    if(dockExtension){
        let dock = dockExtension.stateObj.dockManager;
        dockToggleID = dock.connect("toggled",() => {
            for (let i = settingsControllers.length - 1; i >= 0; --i) {
                let sc = settingsControllers[i];
                _disableButton(sc, 1);
            }
            _enableButtons();
        });
    }
}

function _disconnectDtdSignals() {
    if(dockExtension){
        let dock = dockExtension.stateObj.dockManager;
        if(dock && dockToggleID){
            dock.disconnect(dockToggleID);
            dockToggleID = null;
        }
    }
}

function _onArcMenuPlacementChange() {
    let arcMenuPlacement = settings.get_enum('arc-menu-placement');
    if(arcMenuPlacement == Constants.ArcMenuPlacement.PANEL || arcMenuPlacement == Constants.ArcMenuPlacement.DTP){
        _disconnectDtdSignals();
        _connectDtpSignals();
    }
    else{
        _disconnectDtpSignals();
        _connectDtdSignals();
    }
    for (let i = settingsControllers.length - 1; i >= 0; --i) {
        let sc = settingsControllers[i];
        _disableButton(sc, 1);
    }
    _enableButtons();
}

function _onMultiMonitorChange() {
    for (let i = settingsControllers.length - 1; i >= 0; --i) {
        let sc = settingsControllers[i];
        _disableButton(sc, 1);
    }
    _enableButtons();
}

function _getDockExtensions(){
    let dashToDock = Main.extensionManager.lookup("dash-to-dock@micxgx.gmail.com");
    let ubuntuDash = Main.extensionManager.lookup("ubuntu-dock@ubuntu.com");
    let dock;
    if(dashToDock && dashToDock.stateObj && dashToDock.stateObj.dockManager){
        dock = dashToDock; 
    }
    if(ubuntuDash && ubuntuDash.stateObj && ubuntuDash.stateObj.dockManager){
        dock = ubuntuDash; 
    }
    return dock;
}

function _enableButtons() {
    let multiMonitor = settings.get_boolean('multi-monitor');
    dockExtension = _getDockExtensions();
    let arcMenuPlacement = settings.get_enum('arc-menu-placement');
    if(arcMenuPlacement == Constants.ArcMenuPlacement.DASH && dockExtension){
        this.set_DtD_DtP_State(Constants.EXTENSION.DTD, true);
        let panel = dockExtension.stateObj.dockManager; 
        if(panel){ 
            if(panel._allDocks.length){  
                let iterLength = multiMonitor ? panel._allDocks.length : 1;
                for(var index = 0; index < iterLength; index++){      
                    if(!panel._allDocks[index].dash.arcMenuEnabled){
                        let settingsController = new Controller.MenuSettingsController(settings, settingsControllers, panel, index, Constants.ArcMenuPlacement.DASH);
                        
                        settingsController.enableButton(index);
                        settingsController.bindSettingsChanges();
                        settingsControllers.push(settingsController); 
                    }      
                }
            }
        }
    }
    else{
        let panelArray = global.dashToPanel ? global.dashToPanel.panels.map(pw => pw.panel || pw) : [Main.panel];
        let iterLength = multiMonitor ? panelArray.length : 1;
        for(var index = 0; index < iterLength; index++){
            let panel = panelArray[index];

            if(global.dashToPanel) this.set_DtD_DtP_State(Constants.EXTENSION.DTP, true);

            let isMainPanel = ('isSecondary' in panel && !panel.isSecondary) || panel == Main.panel;
    
            if (panel.statusArea['arc-menu'])
                continue;
            else if (settingsControllers[index])
                _disableButton(settingsControllers[index], 1); 
    
            // Create a Menu Controller that is responsible for controlling
            // and managing the menu as well as the menu button.
        
            let settingsController = new Controller.MenuSettingsController(settings, settingsControllers, panel, isMainPanel, Constants.ArcMenuPlacement.PANEL);
            
            if (!isMainPanel) {
                panel._amDestroyId = panel.connect('destroy', () => extensionChangedId ? _disableButton(settingsController, 1) : null);
            }
    
            settingsController.enableButton();
            settingsController.bindSettingsChanges();
            settingsControllers.push(settingsController);
        }
    }  
    
}

function _disableButton(controller, remove) {
    if (controller.panel._amDestroyId) {
        controller.panel.disconnect(controller.panel._amDestroyId);
        delete controller.panel._amDestroyId;
    }

    controller.destroy();
    
    if (remove) {
        settingsControllers.splice(settingsControllers.indexOf(controller), 1);
    }
}