Fixed a crash with input methods

The inputContext's focusWidget was not reset when disabling input
methods.
Thanks to Benjamin P.

Task-number: 257832
Reviewed-by: Denis

2 files changed, 3 insertions, 6 deletions

diff --git a/src/gui/kernel/qapplication.cpp b/src/gui/kernel/qapplication.cpp
index c6af728..114ebb2 100644
--- a/src/gui/kernel/qapplication.cpp
+++ b/src/gui/kernel/qapplication.cpp
@@ -126,7 +126,7 @@ int QApplicationPrivate::app_compile_version = 0x040000; //we don't know exactly
 QApplication::Type qt_appType=QApplication::Tty;
 QApplicationPrivate *QApplicationPrivate::self = 0;
 
-QInputContext *QApplicationPrivate::inputContext;
+QInputContext *QApplicationPrivate::inputContext = 0;
 
 bool QApplicationPrivate::quitOnLastWindowClosed = true;
 
diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp
index 9d40b00..fb9084e 100644
--- a/src/gui/kernel/qwidget.cpp
+++ b/src/gui/kernel/qwidget.cpp
@@ -9879,11 +9879,8 @@ void QWidget::setAttribute(Qt::WidgetAttribute attribute, bool on)
             QInputContextPrivate::updateImeStatus(this, true);
 #endif
         QInputContext *ic = d->ic;
-        if (!ic) {
-            // implicitly create input context only if we have a focus
-            if (hasFocus())
-                ic = d->inputContext();
-        }
+        if (!ic && (!on || hasFocus()))
+            ic = d->inputContext();
         if (ic) {
             if (on && hasFocus() && ic->focusWidget() != this) {
                 ic->setFocusWidget(this);