Fix input method support on widgets that have a focus proxy set.

When enabling/disabling a widget or changing its InputMethodEnabled attribute,
use the focus proxy widget's input context for reset and for setting the focus
widget on the input context.

Task-number: QTBUG-5781
Reviewed-by: Denis

1 files changed, 6 insertions, 0 deletions

diff --git a/src/gui/kernel/qwidget_p.h b/src/gui/kernel/qwidget_p.h
index eea929b..66efcb5 100644
--- a/src/gui/kernel/qwidget_p.h
+++ b/src/gui/kernel/qwidget_p.h
@@ -465,6 +465,12 @@ public:
     void setLayoutItemMargins(QStyle::SubElement element, const QStyleOption *opt = 0);
 
     QInputContext *inputContext() const;
+    inline QWidget *effectiveFocusWidget() {
+        QWidget *w = q_func();
+        while (w->focusProxy())
+            w = w->focusProxy();
+        return w;
+    }
 
     void setModal_sys();