Accessibility: Improve interface handling in Quick

This changes how interfaces are handled:
the QAccessibleQuickItem will simply subclass
all interfaces and dynamically return 0 or the
appropriate interface_cast.

This makes our implementation a lot more flexible.
To make use of the value interface, only a value
property is needed (together with a corresponding role).

Since the implementation of the interfaces became simpler,
the value interface and some text interface improvements
go along with the change.

Change-Id: I003ec3016d48d730a4acac467bce322167842f4d
Reviewed-by: Jan Arve Sæther <jan-arve.saether@digia.com>

1 files changed, 1 insertions, 16 deletions

diff --git a/src/plugins/accessible/quick/main.cpp b/src/plugins/accessible/quick/main.cpp
index 882cbcda4f..cac5d7e58d 100644
--- a/src/plugins/accessible/quick/main.cpp
+++ b/src/plugins/accessible/quick/main.cpp
@@ -92,22 +92,7 @@ QAccessibleInterface *AccessibleQuickFactory::create(const QString &classname, Q
         QQuickItemPrivate *itemPrivate = QQuickItemPrivate::get(item);
         if (!itemPrivate->isAccessible)
             return 0;
-
-        QVariant v = QQuickAccessibleAttached::property(item, "role");
-        bool ok;
-        QAccessible::Role role = (QAccessible::Role)v.toInt(&ok);
-        if (!ok)    // Not sure if this check is needed.
-            return new QAccessibleQuickItem(item);
-
-        switch (role) {
-        case QAccessible::Slider:
-        case QAccessible::SpinBox:
-        case QAccessible::Dial:
-        case QAccessible::ScrollBar:
-            return new QAccessibleQuickItemValueInterface(item);
-        default:
-            return new QAccessibleQuickItem(item);
-        }
+        return new QAccessibleQuickItem(item);
     }
 
     return 0;