Issue #1829 - Revert "Issue #1751"

accessible/mac/mozDocAccessible.mm

@@ -0,0 +1,111 @@
+/* -*- Mode: Objective-C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "RootAccessibleWrap.h"
+
+#import "mozDocAccessible.h"
+
+#import "mozView.h"
+
+// This must be included last:
+#include "nsObjCExceptions.h"
+
+using namespace mozilla::a11y;
+
+static id <mozAccessible, mozView>
+getNativeViewFromRootAccessible(Accessible* aAccessible)
+{
+  RootAccessibleWrap* root =
+    static_cast<RootAccessibleWrap*>(aAccessible->AsRoot());
+  id <mozAccessible, mozView> nativeView = nil;
+  root->GetNativeWidget ((void**)&nativeView);
+  return nativeView;
+}
+
+#pragma mark -
+
+@implementation mozRootAccessible
+
+- (NSArray*)accessibilityAttributeNames
+{
+  NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
+
+  // if we're expired, we don't support any attributes.
+  if (![self getGeckoAccessible])
+    return [NSArray array];
+
+  // standard attributes that are shared and supported by root accessible (AXMain) elements.
+  static NSMutableArray* attributes = nil;
+
+  if (!attributes) {
+    attributes = [[super accessibilityAttributeNames] mutableCopy];
+    [attributes addObject:NSAccessibilityMainAttribute];
+    [attributes addObject:NSAccessibilityMinimizedAttribute];
+  }
+
+  return attributes;
+
+  NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
+}
+
+- (id)accessibilityAttributeValue:(NSString *)attribute
+{
+  NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
+
+  if ([attribute isEqualToString:NSAccessibilityMainAttribute])
+    return [NSNumber numberWithBool:[[self window] isMainWindow]];
+  if ([attribute isEqualToString:NSAccessibilityMinimizedAttribute])
+    return [NSNumber numberWithBool:[[self window] isMiniaturized]];
+
+  return [super accessibilityAttributeValue:attribute];
+
+  NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
+}
+
+
+// return the AXParent that our parallell NSView tells us about.
+- (id)parent
+{
+  NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
+
+  if (!mParallelView)
+    mParallelView = (id<mozView, mozAccessible>)[self representedView];
+
+  if (mParallelView)
+    return [mParallelView accessibilityAttributeValue:NSAccessibilityParentAttribute];
+
+  NSAssert(mParallelView, @"we're a root accessible w/o native view?");
+  return [super parent];
+
+  NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
+}
+
+- (BOOL)hasRepresentedView
+{
+  return YES;
+}
+
+// this will return our parallell NSView. see mozDocAccessible.h
+- (id)representedView
+{
+  NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
+
+  if (mParallelView)
+    return (id)mParallelView;
+
+  mParallelView = getNativeViewFromRootAccessible ([self getGeckoAccessible]);
+
+  NSAssert(mParallelView, @"can't return root accessible's native parallel view.");
+  return mParallelView;
+
+  NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
+}
+
+- (BOOL)isRoot
+{
+  return YES;
+}
+
+@end