Accessibility: Improve handling of read-only state

We have been rather sloppy in how read-only versus editable is handled.
According to the definition, editable signifies that in principle a
widget allows the user to change its text. Read-only means that this
ability is (currently) disabled.

Task-number: QTBUG-75002
Change-Id: I5d71843abcdaac52f4a60a1abcac2604341f6c96
Reviewed-by: Jan Arve Sæther <jan-arve.saether@qt.io>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/widgets/widgets/qlineedit.cpp b/src/widgets/widgets/qlineedit.cpp
index 4301a3a2e7..86c7d35dbc 100644
--- a/src/widgets/widgets/qlineedit.cpp
+++ b/src/widgets/widgets/qlineedit.cpp
@@ -1369,6 +1369,12 @@ void QLineEdit::setReadOnly(bool enable)
         QEvent event(QEvent::ReadOnlyChange);
         QCoreApplication::sendEvent(this, &event);
         update();
+#ifndef QT_NO_ACCESSIBILITY
+        QAccessible::State changedState;
+        changedState.readOnly = true;
+        QAccessibleStateChangeEvent ev(this, changedState);
+        QAccessible::updateAccessibility(&ev);
+#endif
     }
 }