Add QAccessible::ActivationObserver

Makes it possible to follow changes in activation an deactivation of a11y.
Needed for WebEngine to know when to activate a11y.

Change-Id: Ia264a76974224d1baad3e88c34a4b8a9f1a3695d
Reviewed-by: Jan Arve Sæther <jan-arve.saether@digia.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/src/gui/accessible/qaccessible.h b/src/gui/accessible/qaccessible.h
index 2da7cf62bf..d940713a35 100644
--- a/src/gui/accessible/qaccessible.h
+++ b/src/gui/accessible/qaccessible.h
@@ -352,6 +352,15 @@ public:
     static UpdateHandler installUpdateHandler(UpdateHandler);
     static RootObjectHandler installRootObjectHandler(RootObjectHandler);
 
+    class ActivationObserver
+    {
+    public:
+        virtual ~ActivationObserver() {}
+        virtual void accessibilityActiveChanged(bool active) = 0;
+    };
+    static void installActivationObserver(ActivationObserver *);
+    static void removeActivationObserver(ActivationObserver *);
+
     static QAccessibleInterface *queryAccessibleInterface(QObject *);
     static Id uniqueId(QAccessibleInterface *iface);
     static QAccessibleInterface *accessibleInterface(Id uniqueId);
@@ -365,6 +374,7 @@ public:
     static void updateAccessibility(QAccessibleEvent *event);
 
     static bool isActive();
+    static void setActive(bool active);
     static void setRootObject(QObject *object);
 
     static void cleanup();