Added the aria-sort state to the accessibility tree.

content/browser/accessibility/browser_accessibility_cocoa.mm

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <execinfo.h>
 
 #import "content/browser/accessibility/browser_accessibility_cocoa.h"
 
 #include <map>
 
@@ skipping 97 matching lines @@
     { @"AXARIAAtomic", @"ariaAtomic" },
     { @"AXARIABusy", @"ariaBusy" },
     { @"AXARIALive", @"ariaLive" },
     { @"AXARIARelevant", @"ariaRelevant" },
     { @"AXGrabbed", @"grabbed" },
     { @"AXInvalid", @"invalid" },
     { @"AXLoaded", @"loaded" },
     { @"AXLoadingProgress", @"loadingProgress" },
     { @"AXPlaceholder", @"placeholder" },
     { @"AXRequired", @"required" },
+    { @"AXSortDirection", @"sortDirection" },
     { @"AXVisited", @"visited" },
   };
 
   NSMutableDictionary* dict = [[NSMutableDictionary alloc] init];
   const size_t numAttributes = sizeof(attributeToMethodNameContainer) /
                                sizeof(attributeToMethodNameContainer[0]);
   for (size_t i = 0; i < numAttributes; ++i) {
     [dict setObject:attributeToMethodNameContainer[i].methodName
              forKey:attributeToMethodNameContainer[i].attribute];
   }
@@ skipping 647 matching lines @@
 
   return ret;
 }
 
 // Returns the size of this object.
 - (NSValue*)size {
   gfx::Rect bounds = browserAccessibility_->GetLocalBoundsRect();
   return  [NSValue valueWithSize:NSMakeSize(bounds.width(), bounds.height())];
 }
 
+- (NSString*)sortDirection {
+  int sortDirection;
+  if (!browserAccessibility_->GetIntAttribute(
+      ui::AX_ATTR_SORT_DIRECTION, &sortDirection))
+    return @"";
+
+  switch (sortDirection) {
+  case ui::AX_SORT_DIRECTION_UNSORTED:
+    return @"";
+  case ui::AX_SORT_DIRECTION_ASCENDING:
+    return @"AXSortDirectionAscending";
+  case ui::AX_SORT_DIRECTION_DESCENDING:
+    return @"AXSortDirectionDescending";
+  case ui::AX_SORT_DIRECTION_OTHER:
+    return @"AXSortDirectionUnknown";
+  default:
+    NOTREACHED();
+  }
+
+  return @"";
+}
+
 // Returns a subrole based upon the role.
 - (NSString*) subrole {
   ui::AXRole browserAccessibilityRole = [self internalRole];
   if (browserAccessibilityRole == ui::AX_ROLE_TEXT_FIELD &&
       GetState(browserAccessibility_, ui::AX_STATE_PROTECTED)) {
     return @"AXSecureTextField";
   }
 
   if (browserAccessibilityRole == ui::AX_ROLE_DESCRIPTION_LIST)
     return @"AXDefinitionList";
@@ skipping 499 matching lines @@
     [ret addObjectsFromArray:[NSArray arrayWithObjects:
         NSAccessibilityIndexAttribute,
         NSAccessibilityHeaderAttribute,
         NSAccessibilityRowsAttribute,
         NSAccessibilityVisibleRowsAttribute,
         nil]];
   } else if ([role isEqualToString:NSAccessibilityCellRole]) {
     [ret addObjectsFromArray:[NSArray arrayWithObjects:
         NSAccessibilityColumnIndexRangeAttribute,
         NSAccessibilityRowIndexRangeAttribute,
+        @"AXSortDirection",
         nil]];
   } else if ([role isEqualToString:@"AXWebArea"]) {
     [ret addObjectsFromArray:[NSArray arrayWithObjects:
         @"AXLoaded",
         @"AXLoadingProgress",
         nil]];
   } else if ([role isEqualToString:NSAccessibilityTextFieldRole] ||
              [role isEqualToString:NSAccessibilityTextAreaRole]) {
     [ret addObjectsFromArray:[NSArray arrayWithObjects:
         NSAccessibilityInsertionPointLineNumberAttribute,
@@ skipping 263 matching lines @@
   if (!browserAccessibility_)
     return [super hash];
   return browserAccessibility_->GetId();
 }
 
 - (BOOL)accessibilityShouldUseUniqueId {
   return YES;
 }
 
 @end