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#include "qnsview.h"
#include "qcocoahelpers.h"
#include "qcocoaaccessibility.h"
#include "qcocoaaccessibilityelement.h"
#include "qcocoaintegration.h"

#include <QtGui/qaccessible.h>
#include <QtCore/QDebug>

#import <AppKit/NSAccessibility.h>

#ifndef QT_NO_ACCESSIBILITY

@implementation QNSView (QNSViewAccessibility)

- (id)childAccessibleElement {
    if (!m_window->accessibleRoot())
        return nil;

    QAccessible::Id childId = QAccessible::uniqueId(m_window->accessibleRoot());
    return [QMacAccessibilityElement elementWithId: childId];
}

// The QNSView is a container that the user does not interact directly with:
// Remove it from the user-visible accessibility tree.
- (BOOL)accessibilityIsIgnored {
    return YES;
}

- (id)accessibilityAttributeValue:(NSString *)attribute {
    // activate accessibility updates
    QCocoaIntegration::instance()->accessibility()->setActive(true);

    if ([attribute isEqualToString:NSAccessibilityChildrenAttribute]) {
        return NSAccessibilityUnignoredChildrenForOnlyChild([self childAccessibleElement]);
    } else {
        return [super accessibilityAttributeValue:attribute];
    }
}

- (id)accessibilityHitTest:(NSPoint)point {
    return [[self childAccessibleElement] accessibilityHitTest: point];
}

- (id)accessibilityFocusedUIElement {
    return [[self childAccessibleElement] accessibilityFocusedUIElement];
}

@end

#endif // QT_NO_ACCESSIBILITY