MacViews: Accessibility bridge

ui/accessibility/platform/ax_platform_node_delegate.h

 // Copyright 2014 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.
 
 #ifndef UI_ACCESSIBILITY_PLATFORM_AX_PLATFORM_NODE_DELEGATE_H_
 #define UI_ACCESSIBILITY_PLATFORM_AX_PLATFORM_NODE_DELEGATE_H_
 
 #include "ui/accessibility/ax_enums.h"
+#include "ui/accessibility/ax_export.h"
+#include "ui/gfx/geometry/vector2d.h"
+#include "ui/gfx/native_widget_types.h"
 
 namespace ui {
 
 struct AXNodeData;
+class AXPlatformNode;
 
 class AX_EXPORT AXPlatformNodeDelegate {
  public:
   // Get the accessibility data that should be exposed for this node.
   virtual AXNodeData* GetData() = 0;
 
+  // Get the parent of the node unless it's the root, then it returns NULL.
+  virtual gfx::NativeViewAccessible GetParent() = 0;
+
   // Get the number of children of this node.
   virtual int GetChildCount() = 0;
 
   // Get the child of a node from [0...GetChildCount() - 1]
-  virtual AXPlatformNode* ChildAtIndex(int index) = 0;
-
-  // Get the parent of the node unless it's the root, then it returns NULL.
-  virtual AXPlatformNode* GetParent() = 0;
-
-  // Get the root of this tree of AXPlatformNode objects. The root's parent
-  // can be retrieved using GetParentOfRoot().
-  virtual AXPlatformNode* GetRoot() = 0;
-
-  // Get the node within this tree of AXPlatformNode objects that currently
-  // has focus.
-  virtual AXPlatformNode* GetFocus() = 0;
-
-  // Get the index of this node in its parent.
-  virtual int GetIndexInParent() = 0;
-
-  // Given x, y coordinates local to the root's coordinate space, return
-  // the deepest descendant node within those coordinates.
-  virtual AXPlatformNode* HitTest(int x, int y) = 0;
-
-  // Get the parent of the root element.
-  virtual gfx::NativeViewAccessible GetParentOfRoot() = 0;
-
-  // Get the accelerated widget that this accessibility tree is embedded in.
-  virtual gfx::AcceleratedWidget GetAcceleratedWidget() = 0;
+  virtual gfx::NativeViewAccessible ChildAtIndex(int index) = 0;
 
   // Get the offset to convert local coordinates to screen global coordinates.
   virtual gfx::Vector2d GetGlobalCoordinateOffset() = 0;
 
-  // Get a negative number that can be used as an id for this node.
-  virtual int GetNegativeId() = 0;
-
-  // Find a native object given its negative id. This may not be an object
-  // in this tree, so the return type is gfx::NativeViewAccessible.
-  virtual gfx::NativeViewAccessible GetFromNegativeId(int negative_id) = 0;
-
-  //
-  // Actions.
-  //
-
-  virtual void DoDefaultAction() = 0;
-  virtual void Focus() = 0;
-
   //
   // Events.
   //
-
   virtual void NotifyAccessibilityEvent(ui::AXEvent event_type) = 0;
 
 };
 
 }  // namespace ui
 
 #endif  // UI_ACCESSIBILITY_PLATFORM_AX_PLATFORM_NODE_DELEGATE_H_