Mac a11y: Add Help, TopLevelUIElement, and Window accessibility attributes.

ui/views/widget/native_widget_mac_accessibility_unittest.mm

 // Copyright 2016 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 <memory>
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #import "testing/gtest_mac.h"
 #include "ui/accessibility/ax_enums.h"
 #include "ui/accessibility/ax_view_state.h"
 #import "ui/accessibility/platform/ax_platform_node_mac.h"
 #include "ui/base/ime/text_input_type.h"
 #import "ui/gfx/mac/coordinate_conversion.h"
+#include "ui/views/controls/label.h"
 #include "ui/views/controls/textfield/textfield.h"
 #include "ui/views/test/widget_test.h"
 #include "ui/views/widget/widget.h"
 
 // Expose some methods from AXPlatformNodeCocoa for testing purposes only.
 @interface AXPlatformNodeCocoa (Testing)
 - (NSString*)AXRole;
 @end
 
 namespace views {
@@ skipping 134 matching lines @@
 
   // Check the attribute is updated when the Widget is moved.
   gfx::Rect new_bounds(60, 80, 100, 100);
   widget()->SetBounds(new_bounds);
   widget_origin = [NSValue
       valueWithPoint:gfx::ScreenPointToNSPoint(new_bounds.bottom_left())];
   EXPECT_NSEQ(widget_origin,
               AttributeValueAtMidpoint(NSAccessibilityPositionAttribute));
 }
 
+// Test for NSAccessibilityHelpAttribute.
+TEST_F(NativeWidgetMacAccessibilityTest, HelpAttribute) {
+  Label* label = new Label(base::SysNSStringToUTF16(kTestPlaceholderText));
+  label->SetSize(GetWidgetBounds().size());
+  EXPECT_NSEQ(nil, AttributeValueAtMidpoint(NSAccessibilityHelpAttribute));
+  label->SetTooltipText(base::SysNSStringToUTF16(kTestPlaceholderText));
+  widget()->GetContentsView()->AddChildView(label);
+  EXPECT_NSEQ(kTestPlaceholderText,
+              AttributeValueAtMidpoint(NSAccessibilityHelpAttribute));
+}
+
+// Test for NSAccessibilityWindowAttribute and
+// NSAccessibilityTopLevelUIElementAttribute.
+TEST_F(NativeWidgetMacAccessibilityTest, WindowAndTopLevelUIElementAttributes) {
+  FlexibleRoleTestView* view = new FlexibleRoleTestView(ui::AX_ROLE_GROUP);
+  widget()->GetContentsView()->AddChildView(view);

[tapted, 2016/07/18 03:38:49]

will this be sized correctly to hit the view? (maybe first check some other
property at AttributeValueAtMidpoint that could only apply to the label and not
the window itself, to ensure it's the label being hit)

[Patti Lor, 2016/07/19 01:14:10]

You're right, I forgot to size it! Have added this in along with a test for the
AX_ROLE_GROUP set in the construction of |view|.

+  EXPECT_NSEQ(widget()->GetNativeWindow(),
+              AttributeValueAtMidpoint(NSAccessibilityWindowAttribute));
+  EXPECT_NSEQ(
+      widget()->GetNativeWindow(),
+      AttributeValueAtMidpoint(NSAccessibilityTopLevelUIElementAttribute));
+}
+
 // Tests for accessibility attributes on a views::Textfield.
 // TODO(patricialor): Test against Cocoa-provided attributes as well to ensure
 // consistency between Cocoa and toolkit-views.
 TEST_F(NativeWidgetMacAccessibilityTest, TextfieldGenericAttributes) {
   Textfield* textfield = AddChildTextfield(GetWidgetBounds().size());
 
   // NSAccessibilityEnabledAttribute.
   textfield->SetEnabled(false);
   EXPECT_EQ(NO, [AttributeValueAtMidpoint(NSAccessibilityEnabledAttribute)
                     boolValue]);
@@ skipping 89 matching lines @@
             gfx::Range([AttributeValueAtMidpoint(
                 NSAccessibilitySelectedTextRangeAttribute) rangeValue]));
 
   // NSAccessibilityVisibleCharacterRangeAttribute.
   EXPECT_EQ(gfx::Range(0, kTestStringValue.length),
             gfx::Range([AttributeValueAtMidpoint(
                 NSAccessibilityVisibleCharacterRangeAttribute) rangeValue]));
 }
 
 }  // namespace views