homescreens/halcyon: Add settings page

Add a settings page to halcyon, which allows for toggling whether the
wallpaper is blurred and double tapping on the homescreen to lock the
device. This also does a bit of refactoring for folio and halcyon to
share the same wallpaper blurring item.

components/mobileshell/qml/homescreen/HomeScreenWallpaperBlur.qml

@@ -0,0 +1,40 @@
+// SPDX-FileCopyrightText: 2023-2025 Devin Lin <devin@kde.org>
+// SPDX-License-Identifier: LGPL-2.0-or-later
+
+import QtQuick
+import QtQuick.Layouts
+import Qt5Compat.GraphicalEffects
+
+Loader {
+    id: root
+    property real blurOpacity
+    property Item wallpaperItem
+
+    sourceComponent: Item {
+        id: wallpaper
+        anchors.fill: parent
+
+        // only take samples from wallpaper when we need the blur for performance
+        ShaderEffectSource {
+            id: controlledWallpaperSource
+            anchors.fill: parent
+
+            live: blur.visible
+            hideSource: false
+            visible: false
+            sourceItem: root.wallpaperItem
+        }
+
+        // wallpaper blur
+        // we attempted to use MultiEffect in the past, but it had very poor performance on the PinePhone
+        FastBlur {
+            id: blur
+            radius: 50
+            cached: true
+            source: controlledWallpaperSource
+            anchors.fill: parent
+            visible: opacity > 0
+            opacity: root.blurOpacity
+        }
+    }
+}

containments/homescreens/folio/package/contents/ui/main.qml

@@ -31,45 +31,20 @@ ContainmentItem {
         forceActiveFocus();
     }
 
-    Loader {
+    MobileShell.HomeScreenWallpaperBlur {
-        id: wallpaperBlurLoader
+        id: wallpaperBlur
         active: folio.FolioSettings.showWallpaperBlur
         anchors.fill: parent
+        wallpaperItem: Plasmoid.wallpaperGraphicsObject
 
-        sourceComponent: Item {
+        blurOpacity: Math.min(1,
-            id: wallpaper
+            Math.max(
-            anchors.fill: parent
+                1 - homeScreen.contentOpacity,
-
+                folio.HomeScreenState.appDrawerOpenProgress * 2, // blur faster during swipe
-            // only take samples from wallpaper when we need the blur for performance
+                folio.HomeScreenState.searchWidgetOpenProgress * 1.5, // blur faster during swipe
-            ShaderEffectSource {
+                folio.HomeScreenState.folderOpenProgress
-                id: controlledWallpaperSource
+            )
-                anchors.fill: parent
+        )
-
-                sourceItem: Plasmoid.wallpaperGraphicsObject
-                live: blur.visible
-                hideSource: false
-                visible: false
-            }
-
-            // wallpaper blur
-            // we attempted to use MultiEffect in the past, but it had very poor performance on the PinePhone
-            FastBlur {
-                id: blur
-                radius: 50
-                cached: true
-                source: controlledWallpaperSource
-                anchors.fill: parent
-                visible: opacity > 0
-                opacity: Math.min(1,
-                    Math.max(
-                        1 - homeScreen.contentOpacity,
-                        folio.HomeScreenState.appDrawerOpenProgress * 2, // blur faster during swipe
-                        folio.HomeScreenState.searchWidgetOpenProgress * 1.5, // blur faster during swipe
-                        folio.HomeScreenState.folderOpenProgress
-                    )
-                )
-            }
-        }
     }
 
     WindowPlugin.WindowMaximizedTracker {

containments/homescreens/halcyon/CMakeLists.txt

@@ -5,6 +5,7 @@ add_definitions(-DTRANSLATION_DOMAIN=\"plasma_applet_org.kde.plasma.mobile.homes
 
 set(homescreen_SRCS
     homescreen.cpp
+    halcyonsettings.cpp
 )
 
 add_library(org.kde.plasma.mobile.homescreen.halcyon MODULE ${homescreen_SRCS})
@@ -14,11 +15,11 @@ target_link_libraries(org.kde.plasma.mobile.homescreen.halcyon
                       Qt::Qml
                       Qt::Quick
                       Plasma::Plasma
+                      Plasma::KWaylandClient
                       KF6::I18n
                       KF6::Service
                       KF6::KIOGui
                       KF6::Notifications
-                      Plasma::KWaylandClient
                       KF6::WindowSystem
 )
 

containments/homescreens/halcyon/halcyonsettings.cpp

@@ -0,0 +1,56 @@
+// SPDX-FileCopyrightText: 2025 Devin Lin <devin@kde.org>
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "halcyonsettings.h"
+
+const QString CFG_KEY_SHOW_WALLPAPER_BLUR = QStringLiteral("showWallpaperBlur");
+const QString CFG_KEY_DOUBLE_TAP_TO_SLEEP = QStringLiteral("doubleTapToSleep");
+
+HalcyonSettings::HalcyonSettings(QObject *parent, KConfigGroup config)
+    : QObject{parent}
+    , m_config{config}
+{
+    load();
+}
+
+bool HalcyonSettings::showWallpaperBlur() const
+{
+    return m_showWallpaperBlur;
+}
+
+void HalcyonSettings::setShowWallpaperBlur(bool showWallpaperBlur)
+{
+    if (m_showWallpaperBlur != showWallpaperBlur) {
+        m_showWallpaperBlur = showWallpaperBlur;
+        Q_EMIT showWallpaperBlurChanged();
+        save();
+    }
+}
+
+bool HalcyonSettings::doubleTapToSleep() const
+{
+    return m_doubleTapToSleep;
+}
+
+void HalcyonSettings::setDoubleTapToSleep(bool doubleTapToSleep)
+{
+    if (m_doubleTapToSleep != doubleTapToSleep) {
+        m_doubleTapToSleep = doubleTapToSleep;
+        Q_EMIT doubleTapToSleepChanged();
+        save();
+    }
+}
+
+void HalcyonSettings::save()
+{
+    m_config.writeEntry(CFG_KEY_SHOW_WALLPAPER_BLUR, m_showWallpaperBlur);
+    m_config.writeEntry(CFG_KEY_DOUBLE_TAP_TO_SLEEP, m_doubleTapToSleep);
+
+    m_config.sync();
+}
+
+void HalcyonSettings::load()
+{
+    m_showWallpaperBlur = m_config.readEntry(CFG_KEY_SHOW_WALLPAPER_BLUR, false);
+    m_doubleTapToSleep = m_config.readEntry(CFG_KEY_DOUBLE_TAP_TO_SLEEP, true);
+}

containments/homescreens/halcyon/halcyonsettings.h

@@ -0,0 +1,37 @@
+// SPDX-FileCopyrightText: 2025 Devin Lin <devin@kde.org>
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <QObject>
+
+#include <KConfigGroup>
+
+class HalcyonSettings : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(bool showWallpaperBlur READ showWallpaperBlur WRITE setShowWallpaperBlur NOTIFY showWallpaperBlurChanged)
+    Q_PROPERTY(bool doubleTapToSleep READ doubleTapToSleep WRITE setDoubleTapToSleep NOTIFY doubleTapToSleepChanged)
+
+public:
+    HalcyonSettings(QObject *parent = nullptr, KConfigGroup config = {});
+
+    bool showWallpaperBlur() const;
+    void setShowWallpaperBlur(bool blurWallpaper);
+
+    bool doubleTapToSleep() const;
+    void setDoubleTapToSleep(bool doubleTapToSleep);
+
+Q_SIGNALS:
+    void showWallpaperBlurChanged();
+    void doubleTapToSleepChanged();
+
+private:
+    void save();
+    void load();
+
+    bool m_showWallpaperBlur{false};
+    bool m_doubleTapToSleep{true};
+
+    KConfigGroup m_config;
+};

containments/homescreens/halcyon/homescreen.cpp

@@ -11,12 +11,18 @@
 
 HomeScreen::HomeScreen(QObject *parent, const KPluginMetaData &data, const QVariantList &args)
     : Plasma::Containment{parent, data, args}
+    , m_settings{new HalcyonSettings{this, config()}}
 {
     setHasConfigurationInterface(true);
 }
 
 HomeScreen::~HomeScreen() = default;
 
+HalcyonSettings *HomeScreen::settings() const
+{
+    return m_settings;
+}
+
 K_PLUGIN_CLASS(HomeScreen)
 
 #include "homescreen.moc"

containments/homescreens/halcyon/homescreen.h

@@ -5,14 +5,22 @@
 
 #include <Plasma/Containment>
 
+#include "halcyonsettings.h"
+
 class HomeScreen : public Plasma::Containment
 {
     Q_OBJECT
+    Q_PROPERTY(HalcyonSettings *settings READ settings CONSTANT)
 
 public:
     HomeScreen(QObject *parent, const KPluginMetaData &data, const QVariantList &args);
     ~HomeScreen() override;
 
+    HalcyonSettings *settings() const;
+
 Q_SIGNALS:
     void showingDesktopChanged(bool showingDesktop);
+
+private:
+    HalcyonSettings *m_settings{nullptr};
 };

containments/homescreens/halcyon/package/contents/ui/HomeScreen.qml

@@ -13,6 +13,9 @@ import org.kde.draganddrop as DragDrop
 import org.kde.kirigami as Kirigami
 import org.kde.plasma.private.mobileshell.state as MobileShellState
 import org.kde.plasma.private.mobileshell.windowplugin as WindowPlugin
+import org.kde.plasma.private.mobileshell as MobileShell
+
+import "settings" as Settings
 
 Item {
     id: root
@@ -62,7 +65,7 @@ Item {
         }
     }
 
-    SettingsScreen {
+    Settings.SettingsScreen {
         id: settings
         bottomMargin: root.bottomMargin
         anchors.fill: parent
@@ -104,6 +107,15 @@ Item {
                 }
 
                 onLongPressed: root.openConfigure()
+                onDoubleTapped: {
+                    if (Plasmoid.settings.doubleTapToSleep) {
+                        doubleTapToSleep.doubleTapped();
+                    }
+                }
+            }
+
+            MobileShell.DoubleTapToSleep {
+                id: doubleTapToSleep
             }
 
             FavoritesView {

containments/homescreens/halcyon/package/contents/ui/main.qml

@@ -56,11 +56,23 @@ ContainmentItem {
         screenGeometry: Plasmoid.containment.screenGeometry
     }
 
+    MobileShell.HomeScreenWallpaperBlur {
+        id: wallpaperBlur
+        active: Plasmoid.settings.showWallpaperBlur
+        anchors.fill: parent
+        wallpaperItem: Plasmoid.wallpaperGraphicsObject
+
+        blurOpacity: Math.min(1,
+            Math.max(1 - homeScreen.contentOpacity,
+                halcyonHomeScreen.settingsOpenFactor
+            )
+        )
+    }
+
     Rectangle {
         id: darkenBackground
         color: (halcyonHomeScreen.page == 1 ? Qt.rgba(0, 0, 0, 0.7) : Qt.rgba(0, 0, 0, 0.2))
         anchors.fill: parent
-        z: -1
         Behavior on color {
             ColorAnimation { duration: Kirigami.Units.longDuration }
         }
@@ -71,7 +83,6 @@ ContainmentItem {
         color: Qt.rgba(0, 0, 0, 0.7)
         opacity: halcyonHomeScreen.settingsOpenFactor
         anchors.fill: parent
-        z: -1
         Behavior on color {
             ColorAnimation { duration: Kirigami.Units.longDuration }
         }

containments/homescreens/halcyon/package/contents/ui/settings/SettingsScreen.qml

@@ -103,12 +103,40 @@ Item {
 
                 onClicked: {
                     root.homeScreen.settingsOpen = false;
-                    root.homeScreen.openContainmentSettings();
+
+                    if (settingsWindowLoader.active) {
+                        // Ensure that if the window is already opened, it gets raised to the top
+                        settingsWindowLoader.item.hide();
+                        settingsWindowLoader.item.showMaximized();
+                    } else {
+                        settingsWindowLoader.active = true;
+                    }
                 }
             }
         }
     }
 
+    // Only load settings window when visible
+    Loader {
+        id: settingsWindowLoader
+        asynchronous: true
+        active: false
+
+        onLoaded: item.showMaximized();
+
+        sourceComponent: SettingsWindow {
+            onVisibleChanged: {
+                if (!visible) {
+                    settingsWindowLoader.active = false;
+                }
+            }
+            onRequestConfigureMenu: {
+                root.homeScreen.openContainmentSettings();
+            }
+        }
+    }
+
+    // Only load wallpaper selector when visible
     Loader {
         id: wallpaperSelectorLoader
         asynchronous: true

containments/homescreens/halcyon/package/contents/ui/settings/SettingsWindow.qml

@@ -0,0 +1,129 @@
+// SPDX-FileCopyrightText: 2023-2025 Devin Lin <devin@kde.org>
+// SPDX-License-Identifier: LGPL-2.0-or-later
+
+import QtQuick
+import QtQuick.Window
+import QtQuick.Layouts
+import QtQuick.Dialogs
+import QtQuick.Controls as QQC2
+
+import org.kde.plasma.plasmoid
+import org.kde.kirigami as Kirigami
+import org.kde.kirigamiaddons.formcard as FormCard
+
+Window {
+    id: root
+
+    flags: Qt.FramelessWindowHint
+    color: 'transparent'
+
+    onVisibleChanged: {
+        if (visible) {
+            opacityAnim.to = 1;
+            opacityAnim.restart();
+        }
+    }
+
+    onClosing: (close) => {
+        if (applicationItem.opacity !== 0) {
+            close.accepted = false;
+            opacityAnim.to = 0;
+            opacityAnim.restart();
+        }
+    }
+
+    signal requestConfigureMenu()
+
+    Kirigami.ApplicationItem {
+        id: applicationItem
+        anchors.fill: parent
+
+        opacity: 0
+
+        NumberAnimation on opacity {
+            id: opacityAnim
+            duration: 200
+            easing.type: Easing.OutCubic
+            onFinished: {
+                if (applicationItem.opacity === 0) {
+                    root.close();
+                }
+            }
+        }
+
+        scale: 0.7 + 0.3 * applicationItem.opacity
+
+        pageStack.globalToolBar.style: Kirigami.ApplicationHeaderStyle.ToolBar
+        pageStack.globalToolBar.showNavigationButtons: Kirigami.ApplicationHeaderStyle.NoNavigationButtons;
+
+        pageStack.initialPage: Kirigami.ScrollablePage {
+            id: page
+            opacity: applicationItem.opacity
+
+            titleDelegate: RowLayout {
+                QQC2.ToolButton {
+                    Layout.leftMargin: -Kirigami.Units.gridUnit + Kirigami.Units.smallSpacing
+                    icon.name: "arrow-left"
+                    onClicked: root.close()
+                }
+
+                Kirigami.Heading {
+                    level: 1
+                    text: page.title
+                }
+            }
+
+            title: i18n("Homescreen Settings")
+
+            topPadding: 0
+            bottomPadding: 0
+            leftPadding: 0
+            rightPadding: 0
+
+            ColumnLayout {
+
+                FormCard.FormHeader {
+                    title: i18n("Homescreen")
+                }
+
+                FormCard.FormCard {
+                    FormCard.FormSwitchDelegate {
+                        id: showWallpaperBlur
+                        text: i18nc("@option:check", "Show wallpaper blur effect")
+                        checked: Plasmoid.settings.showWallpaperBlur
+                        onCheckedChanged: {
+                            if (checked != Plasmoid.settings.showWallpaperBlur) {
+                                Plasmoid.settings.showWallpaperBlur = checked;
+                            }
+                        }
+                    }
+
+                    FormCard.FormDelegateSeparator { above: showWallpaperBlur; below: doubleTapToSleepSwitch }
+
+                    FormCard.FormSwitchDelegate {
+                        id: doubleTapToSleepSwitch
+                        text: i18n("Double tap to lock device")
+                        checked: Plasmoid.settings.doubleTapToSleep
+                        onCheckedChanged: {
+                            if (checked != Plasmoid.settings.doubleTapToSleep) {
+                                Plasmoid.settings.doubleTapToSleep = checked;
+                            }
+                        }
+                    }
+                }
+
+                FormCard.FormCard {
+                    Layout.topMargin: Kirigami.Units.largeSpacing
+                    Layout.bottomMargin: Kirigami.Units.gridUnit
+
+                    FormCard.FormButtonDelegate {
+                        id: containmentSettings
+                        text: i18nc("@action:button", "Switch between homescreens and more wallpaper options")
+                        icon.name: 'settings-configure'
+                        onClicked: root.requestConfigureMenu()
+                    }
+                }
+            }
+        }
+    }
+}