OS X Accessibility: implement AXStyleRangeForIndex in QTextEdit

Not tested as I have no idea what VoiceOver uses it for (it seems to
never query this attribute during any operation I tested).

Change-Id: Ie5e2b765a9956bcf2be9b659b8914e393ed1ea90
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@theqtcompany.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/src/plugins/platforms/cocoa/qcocoaaccessibilityelement.mm b/src/plugins/platforms/cocoa/qcocoaaccessibilityelement.mm
index 47ba50a443..d3bdbb9009 100644
--- a/src/plugins/platforms/cocoa/qcocoaaccessibilityelement.mm
+++ b/src/plugins/platforms/cocoa/qcocoaaccessibilityelement.mm
@@ -357,7 +357,7 @@ static void convertLineOffset(QAccessibleTextInterface *text, int &line, int &of
 //                    NSAccessibilityRangeForIndexParameterizedAttribute,
                     NSAccessibilityBoundsForRangeParameterizedAttribute,
 //                    NSAccessibilityRTFForRangeParameterizedAttribute,
-//                    NSAccessibilityStyleRangeForIndexParameterizedAttribute,
+                    NSAccessibilityStyleRangeForIndexParameterizedAttribute,
                     NSAccessibilityAttributedStringForRangeParameterizedAttribute,
                     nil
                 ];
@@ -424,6 +424,11 @@ static void convertLineOffset(QAccessibleTextInterface *text, int &line, int &of
         QPoint point(static_cast<int>(nsPoint.x), static_cast<int>(qt_mac_flipYCoordinate(nsPoint.y)));
         int offset = iface->textInterface()->offsetAtPoint(point);
         return [NSValue valueWithRange:NSMakeRange(static_cast<NSUInteger>(offset), 1)];
+    } else if ([attribute isEqualToString: NSAccessibilityStyleRangeForIndexParameterizedAttribute]) {
+        int start = 0;
+        int end = 0;
+        iface->textInterface()->attributes([parameter intValue], &start, &end);
+        return [NSValue valueWithRange:NSMakeRange(static_cast<NSUInteger>(start), static_cast<NSUInteger>(end - start))];
     }
     return nil;
 }