shift-shell/shell/contents/configuration/private/ChangeWallpaperModule.qml

// SPDX-FileCopyrightText: 2013 Marco Martin <mart@kde.org>
// SPDX-FileCopyrightText: 2025 Devin Lin <devin@kde.org>
// SPDX-License-Identifier: GPL-2.0-or-later

import QtQuick 2.15
import org.kde.plasma.configuration 2.0
import QtQuick.Controls 2.15 as QQC2
import QtQuick.Layouts 1.15

import org.kde.plasma.plasmoid
import org.kde.newstuff 1.62 as NewStuff
import org.kde.kirigami 2.19 as Kirigami
import org.kde.kirigamiaddons.formcard 1.0 as FormCard

ColumnLayout {
    id: root
    spacing: 0

    property string currentWallpaper: ""
    signal configurationChanged

//BEGIN functions
    function saveConfig() {
        if (main.currentItem.saveConfig) {
            main.currentItem.saveConfig()
        }
        for (var key in configDialog.wallpaperConfiguration) {
            if (main.currentItem["cfg_"+key] !== undefined) {
                configDialog.wallpaperConfiguration[key] = main.currentItem["cfg_"+key]
            }
        }
        configDialog.currentWallpaper = root.currentWallpaper;
        configDialog.applyWallpaper()
    }
//END functions

    ColumnLayout {
        id: generalConfig
        spacing: 0
        Layout.fillWidth: true
        Layout.topMargin: Kirigami.Units.largeSpacing
        Layout.bottomMargin: Kirigami.Units.largeSpacing

        FormCard.FormCard {

            FormCard.FormComboBoxDelegate {
                id: wallpaperPluginSelectComboBox
                text: i18nd("plasma_shell_org.kde.plasma.desktop", "Wallpaper Plugin")
                description: i18n("The wallpaper plugin to use.")

                model: configDialog.wallpaperConfigModel
                textRole: "name"
                valueRole: "pluginName"
                currentIndex: determineCurrentIndex()
                onCurrentIndexChanged: {
                    var model = configDialog.wallpaperConfigModel.get(currentIndex);
                    root.currentWallpaper = model.pluginName;
                    configDialog.currentWallpaper = model.pluginName;
                    main.sourceFile = model.source;
                    root.configurationChanged();
                }

                function determineCurrentIndex() {
                    for (var i = 0; i < configDialog.wallpaperConfigModel.count; ++i) {
                        var data = configDialog.wallpaperConfigModel.get(i);
                        if (configDialog.currentWallpaper === data.pluginName) {
                            return i;
                        }
                    }
                    return -1;
                }
            }

            FormCard.FormDelegateSeparator { above: wallpaperPluginSelectComboBox }

            FormCard.AbstractFormDelegate {
                id: wallpaperPluginButton
                Layout.fillWidth: true
                background: null

                contentItem: RowLayout {
                    QQC2.Label {
                        Layout.fillWidth: true
                        text: i18n("Wallpaper Plugins")
                    }

                    NewStuff.Button {
                        configFile: "wallpaperplugin.knsrc"
                        text: i18nd("plasma_shell_org.kde.plasma.desktop", "Get New Plugins…")
                    }
                }
            }
        }
    }

    Item {
        id: emptyConfig
        Layout.alignment: Qt.AlignTop
    }

    QQC2.StackView {
        id: main

        Layout.alignment: Qt.AlignTop
        Layout.fillHeight: true
        Layout.maximumHeight: root.height - generalConfig.height - Kirigami.Units.smallSpacing // HACK: wallpaper configs seem to go over the provisioned height
        Layout.fillWidth: true

        // Bug 360862: if wallpaper has no config, sourceFile will be ""
        // so we wouldn't load emptyConfig and break all over the place
        // hence set it to some random value initially
        property string sourceFile: "tbd"
        onSourceFileChanged: {
            var wallpaperConfig = configDialog.wallpaperConfiguration;

            if (wallpaperConfig && sourceFile) {
                var props = {
                    'configDialog': configDialog
                }

                for (var key in wallpaperConfig) {
                    props["cfg_" + key] = wallpaperConfig[key]
                }

                var newItem = replace(Qt.resolvedUrl(sourceFile), props)

                for (var key in wallpaperConfig) {
                    var changedSignal = newItem["cfg_" + key + "Changed"]
                    if (changedSignal) {
                        changedSignal.connect(root.configurationChanged)
                    }
                }
            } else {
                replace(emptyConfig)
            }
        }
    }
}