5 files changed, 33 insertions, 16 deletions

diff --git a/src/widgets/accessible/complexwidgets.cpp b/src/widgets/accessible/complexwidgets.cpp
index 4d9a629ab6..ce2ceac938 100644
--- a/src/widgets/accessible/complexwidgets.cpp
+++ b/src/widgets/accessible/complexwidgets.cpp
@@ -108,7 +108,10 @@ public:
             s.invalid = true;
             return s;
         }
-        return parent()->state();
+
+        QAccessible::State s = parent()->state();
+        s.focused = (m_index == m_parent->currentIndex());
+        return s;
     }
     QRect rect() const override {
         if (!isValid())
@@ -216,6 +219,16 @@ QTabBar *QAccessibleTabBar::tabBar() const
     return qobject_cast<QTabBar*>(object());
 }
 
+QAccessibleInterface* QAccessibleTabBar::focusChild() const
+{
+    for (int i = 0; i < childCount(); ++i) {
+        if (child(i)->state().focused)
+            return child(i);
+    }
+
+    return nullptr;
+}
+
 QAccessibleInterface* QAccessibleTabBar::child(int index) const
 {
     if (QAccessible::Id id = m_childInterfaces.value(index))
diff --git a/src/widgets/accessible/complexwidgets_p.h b/src/widgets/accessible/complexwidgets_p.h
index e7a32c7264..335e257476 100644
--- a/src/widgets/accessible/complexwidgets_p.h
+++ b/src/widgets/accessible/complexwidgets_p.h
@@ -112,6 +112,7 @@ public:
     explicit QAccessibleTabBar(QWidget *w);
     ~QAccessibleTabBar();
 
+    QAccessibleInterface *focusChild() const override;
     int childCount() const override;
     QString text(QAccessible::Text t) const override;
 
diff --git a/src/widgets/accessible/qaccessiblewidget.cpp b/src/widgets/accessible/qaccessiblewidget.cpp
index c782e00f4f..68ad855c7c 100644
--- a/src/widgets/accessible/qaccessiblewidget.cpp
+++ b/src/widgets/accessible/qaccessiblewidget.cpp
@@ -376,8 +376,12 @@ QAccessibleInterface *QAccessibleWidget::focusChild() const
     if (!fw)
         return nullptr;
 
-    if (isAncestor(widget(), fw) || fw == widget())
-        return QAccessible::queryAccessibleInterface(fw);
+    if (isAncestor(widget(), fw)) {
+        QAccessibleInterface *iface = QAccessible::queryAccessibleInterface(fw);
+        if (!iface || iface == this || !iface->focusChild())
+            return iface;
+        return iface->focusChild();
+    }
     return nullptr;
 }
 
diff --git a/src/widgets/dialogs/qfileinfogatherer.cpp b/src/widgets/dialogs/qfileinfogatherer.cpp
index 0beca82f28..7342efbd0d 100644
--- a/src/widgets/dialogs/qfileinfogatherer.cpp
+++ b/src/widgets/dialogs/qfileinfogatherer.cpp
@@ -232,7 +232,7 @@ void QFileInfoGatherer::watchPaths(const QStringList &paths)
 void QFileInfoGatherer::unwatchPaths(const QStringList &paths)
 {
 #if QT_CONFIG(filesystemwatcher)
-    if (m_watcher)
+    if (m_watcher && !paths.isEmpty())
         m_watcher->removePaths(paths);
 #else
     Q_UNUSED(paths);
diff --git a/src/widgets/kernel/qapplication.cpp b/src/widgets/kernel/qapplication.cpp
index 3577414713..85542a75f8 100644
--- a/src/widgets/kernel/qapplication.cpp
+++ b/src/widgets/kernel/qapplication.cpp
@@ -1354,15 +1354,14 @@ QPalette QApplication::palette(const QWidget* w)
 */
 QPalette QApplication::palette(const char *className)
 {
-    if (!QApplicationPrivate::app_pal)
-        palette();
     PaletteHash *hash = app_palettes();
     if (className && hash && hash->size()) {
         QHash<QByteArray, QPalette>::ConstIterator it = hash->constFind(className);
         if (it != hash->constEnd())
             return *it;
     }
-    return *QApplicationPrivate::app_pal;
+
+    return QGuiApplication::palette();
 }
 
 void QApplicationPrivate::setPalette_helper(const QPalette &palette, const char* className, bool clearWidgetPaletteHash)
@@ -1381,6 +1380,10 @@ void QApplicationPrivate::setPalette_helper(const QPalette &palette, const char*
             QApplicationPrivate::app_pal = new QPalette(pal);
         else
             *QApplicationPrivate::app_pal = pal;
+
+        if (!QApplicationPrivate::sys_pal || !palette.isCopyOf(*QApplicationPrivate::sys_pal))
+            QCoreApplication::setAttribute(Qt::AA_SetPalette);
+
         if (hash && hash->size()) {
             all = true;
             if (clearWidgetPaletteHash)
@@ -1390,15 +1393,8 @@ void QApplicationPrivate::setPalette_helper(const QPalette &palette, const char*
         hash->insert(className, pal);
     }
 
-    if (QApplicationPrivate::is_app_running && !QApplicationPrivate::is_app_closing) {
-        // Send ApplicationPaletteChange to qApp itself, and to the widgets.
+    if (qApp)
         qApp->d_func()->sendApplicationPaletteChange(all, className);
-    }
-
-    if (!className && (!QApplicationPrivate::sys_pal || !palette.isCopyOf(*QApplicationPrivate::sys_pal))) {
-        QCoreApplication::setAttribute(Qt::AA_SetPalette);
-        emit qGuiApp->paletteChanged(*QGuiApplicationPrivate::app_pal);
-    }
 }
 
 /*!
@@ -4431,7 +4427,10 @@ void QApplicationPrivate::notifyThemeChanged()
 
 void QApplicationPrivate::sendApplicationPaletteChange(bool toAllWidgets, const char *className)
 {
-    QGuiApplicationPrivate::sendApplicationPaletteChange();
+    if (!is_app_running || is_app_closing)
+        return;
+
+    QGuiApplicationPrivate::sendApplicationPaletteChange(toAllWidgets, className);
 
     QEvent event(QEvent::ApplicationPaletteChange);
     const QWidgetList widgets = QApplication::allWidgets();