src/mainview/js/selectscreenwindowcreation.js

/*
 * Copyright (C) 2020 by Savoir-faire Linux
 * Author: Mingrui Zhang <mingrui.zhang@savoirfairelinux.com>
 *
 * 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 3 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 <https://www.gnu.org/licenses/>.
 */


/*
 * Global select screen window component, object variable for creation.
 */
var selectScreenWindowComponent
var selectScreenWindowObject

function createSelectScreenWindowObject(selectArea = false) {
    if (selectScreenWindowObject)
        return
    selectScreenWindowComponent = Qt.createComponent(
                "../components/SelectScreen.qml")
    if (selectScreenWindowComponent.status === Component.Ready)
        finishCreation(selectArea)
    else if (selectScreenWindowComponent.status === Component.Error)
        console.log("Error loading component:",
                    selectScreenWindowComponent.errorString())
}

function finishCreation(selectArea) {
    selectScreenWindowObject = selectScreenWindowComponent.createObject()
    if (selectScreenWindowObject === null) {


        /*
         * Error Handling.
         */
        console.log("Error creating select screen object")
    }

    selectScreenWindowObject.selectArea = selectArea


    /*
     * Signal connection.
     */
    selectScreenWindowObject.onClosing.connect(destorySelectScreenWindow)
}

function showSelectScreenWindow() {
    selectScreenWindowObject.show()
}


/*
 * Destroy and reset selectScreenWindowObject when window is closed.
 */
function destorySelectScreenWindow() {
    if(!selectScreenWindowObject)
        return
    selectScreenWindowObject.destroy()
    selectScreenWindowObject = false
}