Merge remote-tracking branch 'origin/5.15' into dev

 Conflicts:
	src/widgets/kernel/qshortcut.cpp
	tests/auto/network/access/spdy/tst_spdy.cpp

Change-Id: If76c434beac2c0a393440aa365f89f77439774ce

4 files changed, 17 insertions, 5 deletions

diff --git a/src/widgets/dialogs/qfiledialog.cpp b/src/widgets/dialogs/qfiledialog.cpp
index ca2b783f55..e24d308d65 100644
--- a/src/widgets/dialogs/qfiledialog.cpp
+++ b/src/widgets/dialogs/qfiledialog.cpp
@@ -2378,7 +2378,8 @@ QList<QUrl> QFileDialog::getOpenFileUrls(QWidget *parent,
 
     This function is used to access local files on Qt for WebAssembly, where the web
     sandbox places restrictions on how such access may happen. Its implementation will
-    make the browser display a native file dialog, where the user makes the file selection.
+    make the browser display a native file dialog, where the user makes the file selection
+    based on the parameter \a nameFilter.
 
     It can also be used on other platforms, where it will fall back to using QFileDialog.
 
diff --git a/src/widgets/dialogs/qfilesystemmodel.cpp b/src/widgets/dialogs/qfilesystemmodel.cpp
index d658f7fe0c..a723c3a955 100644
--- a/src/widgets/dialogs/qfilesystemmodel.cpp
+++ b/src/widgets/dialogs/qfilesystemmodel.cpp
@@ -1213,7 +1213,8 @@ QMimeData *QFileSystemModel::mimeData(const QModelIndexList &indexes) const
 /*!
     Handles the \a data supplied by a drag and drop operation that ended with
     the given \a action over the row in the model specified by the \a row and
-    \a column and by the \a parent index.
+    \a column and by the \a parent index. Returns true if the operation was
+    successful.
 
     \sa supportedDropActions()
 */
diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index 2160e54b8f..db3c269949 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -5952,7 +5952,11 @@ void QWidget::setWindowTitle(const QString &title)
     has been set, windowIcon() returns the application icon
     (QApplication::windowIcon()).
 
-    \sa windowTitle
+    \note On \macos, window icons represent the active document,
+    and will not be displayed unless a file path has also been
+    set using setFilePath.
+
+    \sa windowTitle, setFilePath
 */
 QIcon QWidget::windowIcon() const
 {
diff --git a/src/widgets/widgets/qscrollbar.cpp b/src/widgets/widgets/qscrollbar.cpp
index 34ea017279..2ce1d50c86 100644
--- a/src/widgets/widgets/qscrollbar.cpp
+++ b/src/widgets/widgets/qscrollbar.cpp
@@ -497,14 +497,20 @@ bool QScrollBar::event(QEvent *event)
 void QScrollBar::wheelEvent(QWheelEvent *event)
 {
     event->ignore();
+    bool horizontal = qAbs(event->angleDelta().x()) > qAbs(event->angleDelta().y());
+    // The vertical wheel can be used to scroll a horizontal scrollbar, but only if
+    // there is no simultaneous horizontal wheel movement.  This is to avoid chaotic
+    // scrolling on touchpads.
+    if (!horizontal && event->angleDelta().x() != 0 && orientation() == Qt::Horizontal)
+        return;
     // scrollbar is a special case - in vertical mode it reaches minimum
     // value in the upper position, however QSlider's minimum value is on
     // the bottom. So we need to invert the value, but since the scrollbar is
     // inverted by default, we need to invert the delta value only for the
     // horizontal orientation.
-    int delta = (orientation() == Qt::Horizontal ? -event->angleDelta().x() : event->angleDelta().y());
+    int delta = horizontal ? -event->angleDelta().x() : event->angleDelta().y();
     Q_D(QScrollBar);
-    if (d->scrollByDelta(orientation(), event->modifiers(), delta))
+    if (d->scrollByDelta(horizontal ? Qt::Horizontal : Qt::Vertical, event->modifiers(), delta))
         event->accept();
 
     if (event->phase() == Qt::ScrollBegin)