Merge pull request #7563 from nextcloud/backport/7561/stable-3.15

[stable-3.15] Bugfix/dark mode switch

Author: mgallien

src/gui/tray/ActivityItemContent.qml

@@ -104,7 +104,7 @@ RowLayout {
 
             cache: true
             fillMode: Image.PreserveAspectFit
-            source: Theme.darkMode ? model.darkIcon : model.lightIcon
+            source: Style.darkMode ? model.darkIcon : model.lightIcon
             sourceSize.height: 64
             sourceSize.width: 64
             mipmap: true // Addresses grainy downscale

src/gui/tray/CallNotificationDialog.qml

@@ -163,7 +163,7 @@ ApplicationWindow {
                     cache: true
 
                     source: root.usingUserAvatar ? root.talkNotificationData.userAvatar :
-                                                   Theme.darkMode ? root.talkIcon + palette.windowText : root.talkIcon + Style.ncBlue
+                                                   Style.darkMode ? root.talkIcon + palette.windowText : root.talkIcon + Style.ncBlue
                     sourceSize.width: Style.accountAvatarSize
                     sourceSize.height: Style.accountAvatarSize
 

src/gui/tray/UnifiedSearchResultListItem.qml

@@ -56,9 +56,9 @@ MouseArea {
             anchors.fill: parent
             title: model.resultTitle
             subline: model.subline
-            icons: Theme.darkMode ? model.darkIcons : model.lightIcons
-            iconsIsThumbnail: Theme.darkMode ? model.darkIconsIsThumbnail : model.lightIconsIsThumbnail
-            iconPlaceholder: Theme.darkMode ? model.darkImagePlaceholder : model.lightImagePlaceholder
+            icons: Style.darkMode ? model.darkIcons : model.lightIcons
+            iconsIsThumbnail: Style.darkMode ? model.darkIconsIsThumbnail : model.lightIconsIsThumbnail
+            iconPlaceholder: Style.darkMode ? model.darkImagePlaceholder : model.lightImagePlaceholder
             isRounded: model.isRounded && iconsIsThumbnail
         }
     }

src/gui/tray/UserLine.qml

@@ -41,7 +41,7 @@ AbstractButton {
             Layout.leftMargin: Style.accountIconsMenuMargin
             verticalAlignment: Qt.AlignCenter
             cache: false
-            source: model.avatar !== "" ? model.avatar : Theme.darkMode ? "image://avatars/fallbackWhite" : "image://avatars/fallbackBlack"
+            source: model.avatar !== "" ? model.avatar : Style.darkMode ? "image://avatars/fallbackWhite" : "image://avatars/fallbackBlack"
             Layout.preferredHeight: Style.accountAvatarSize
             Layout.preferredWidth: Style.accountAvatarSize
 

src/libsync/theme.cpp

@@ -398,9 +398,10 @@ Theme::Theme()
                                 QColor(127, 127, 127));
     reserveDarkPalette.setColor(QPalette::Disabled, QPalette::WindowText,
                                 QColor(127, 127, 127));
-    connectToPaletteSignal();
 #endif
 
+    connectToPaletteSignal();
+
 #ifdef APPLICATION_SERVER_URL_ENFORCE
     _forceOverrideServerUrl = true;
 #endif
@@ -964,13 +965,10 @@ QColor Theme::defaultColor()
     return QColor{NEXTCLOUD_BACKGROUND_COLOR};
 }
 
-void Theme::connectToPaletteSignal()
+void Theme::connectToPaletteSignal() const
 {
-    if (!_paletteSignalsConnected) {
-        if (const auto ptr = qobject_cast<QGuiApplication*>(qApp)) {
-            connect(ptr->styleHints(), &QStyleHints::colorSchemeChanged, this, &Theme::darkModeChanged);
-            _paletteSignalsConnected = true;
-        }
+    if (const auto ptr = qobject_cast<QGuiApplication*>(qApp)) {
+        connect(ptr->styleHints(), &QStyleHints::colorSchemeChanged, this, &Theme::darkModeChanged, Qt::UniqueConnection);
     }
 }
 
@@ -1012,6 +1010,7 @@ QVariantMap Theme::systemPalette() const
 
 bool Theme::darkMode() const
 {
+    connectToPaletteSignal();
     const auto isDarkFromStyle = [] {
         switch (qGuiApp->styleHints()->colorScheme())
         {

src/libsync/theme.h

@@ -639,14 +639,13 @@ public slots:
     Theme &operator=(Theme const &);
 
     void updateMultipleOverrideServers();
-    void connectToPaletteSignal();
+    void connectToPaletteSignal() const;
 #if defined(Q_OS_WIN)
     QPalette reserveDarkPalette; // Windows 11 button and window dark colours
 #endif
 
     static Theme *_instance;
     bool _mono = false;
-    bool _paletteSignalsConnected = false;
 
     QString _overrideServerUrl;
     bool _forceOverrideServerUrl = false;