Android: Handle ImhNoTextHandles flag from InputMethodHints

[0]Qt::InputMethodHints has a flag ImhNoTextHandles that was not
handled. This flag should be considered when QAndroidInputContext is
updating Text handles position.
What is more, this flag can be used to fix the problem with visible
text cursor out of the text object.

[0]https://doc.qt.io/qt-6/qt.html#InputMethodHint-enum

Task-number: QTBUG-115005
Pick-to: 6.6 6.5
Change-Id: Ie50b77d7afbadfebe73f10137f09da9560aea1ba
Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>
Reviewed-by: Rami Potinkara <rami.potinkara@qt.io>

src/plugins/platforms/android/qandroidinputcontext.cpp

@@ -531,12 +531,25 @@ void QAndroidInputContext::updateCursorPosition()
     }
 }
 
+bool QAndroidInputContext::isImhNoTextHandlesSet()
+{
+    QSharedPointer<QInputMethodQueryEvent> query = focusObjectInputMethodQuery();
+    if (query.isNull())
+        return false;
+    return query->value(Qt::ImHints).toUInt() & Qt::ImhNoTextHandles;
+}
+
 void QAndroidInputContext::updateSelectionHandles()
 {
     static bool noHandles = qEnvironmentVariableIntValue("QT_QPA_NO_TEXT_HANDLES");
     if (noHandles || !m_focusObject)
         return;
 
+    if (isImhNoTextHandlesSet()) {
+        QtAndroidInput::updateHandles(Hidden);
+        return;
+    }
+
     auto im = qGuiApp->inputMethod();
 
     QInputMethodQueryEvent query(Qt::ImCursorPosition | Qt::ImAnchorPosition | Qt::ImEnabled

src/plugins/platforms/android/qandroidinputcontext.h

@@ -113,6 +113,7 @@ private slots:
     void showInputPanelLater(Qt::ApplicationState);
 
 private:
+    bool isImhNoTextHandlesSet();
     void sendInputMethodEvent(QInputMethodEvent *event);
     QSharedPointer<QInputMethodQueryEvent> focusObjectInputMethodQuery(Qt::InputMethodQueries queries = Qt::ImQueryAll);
     bool focusObjectIsComposing() const;