Add TakeFocus in WebContentsViewQt for passing on tab focus.

Chromium calls RenderViewHostDelegate::TakeFocus when the
last focusable item within the page was reached.
We then have to move the focus on to the next/previous
QQuickItem.

Change-Id: Id0128053602ff1220c1bced1b218050b66fef659
Reviewed-by: Andras Becsi <andras.becsi@digia.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/src/webengine/api/qquickwebengineview.cpp b/src/webengine/api/qquickwebengineview.cpp
index 049e353b6..2f5d868ea 100644
--- a/src/webengine/api/qquickwebengineview.cpp
+++ b/src/webengine/api/qquickwebengineview.cpp
@@ -180,6 +180,18 @@ void QQuickWebEngineViewPrivate::runFileChooser(FileChooserMode mode, const QStr
     ui()->showFilePicker(mode, defaultFileName, acceptedMimeTypes, adapter);
 }
 
+void QQuickWebEngineViewPrivate::passOnFocus(bool reverse)
+{
+    Q_Q(QQuickWebEngineView);
+    // In one direction we would pass forward the focus to RenderWidgetHostViewQtDelegateQuick(Painted),
+    // which in return would forward the tab key event and therefore the focus back to the QQuickWebEngineView.
+    // This is why we skip RenderWidgetHostViewQtDelegateQuick in the focus chain.
+    QQuickItem* current = QQuickItemPrivate::nextPrevItemInTabFocusChain(q, !reverse);
+    if (!qobject_cast<RenderWidgetHostViewQtDelegateQuick*>(current) && !qobject_cast<RenderWidgetHostViewQtDelegateQuickPainted*>(current))
+        current = q;
+    focusNextPrev(current, !reverse);
+}
+
 void QQuickWebEngineViewPrivate::titleChanged(const QString &title)
 {
     Q_Q(QQuickWebEngineView);