MacViews: Accessibility bridge

ui/accessibility/platform/ax_platform_node_base.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_BASE_H_
+#define UI_ACCESSIBILITY_PLATFORM_AX_PLATFORM_NODE_BASE_H_
+
+#include "ui/accessibility/ax_enums.h"
+#include "ui/accessibility/ax_export.h"
+#include "ui/gfx/geometry/rect.h"
+#include "ui/gfx/native_widget_types.h"
+
+namespace ui {
+
+class AXPlatformNodeDelegate;
+
+class AX_EXPORT AXPlatformNodeBase {

[dmazzoni, 2014/07/30 05:53:12]

I imagined this the other way around - AXPlatformNodeBase would be a subclass of
AXPlatformNode.

Then only AXPlatformNode needs to be exported.

I was basing this off of the pattern used in content:

content/public/browser/render_widget_host_view.h

content/browser/renderer_host/render_widget_host_view_base.h

content/browser/renderer_host/render_widget_host_view_mac.h
content/browser/renderer_host/render_widget_host_view_aura.h

[Andre, 2014/07/30 18:50:16]

That makes more sense. Done.

+ public:
+  // These are simple wrappers to our delegate.
+  AXRole GetRole() const;
+  gfx::Rect GetBoundsInScreen() const;
+  gfx::NativeViewAccessible GetParent();
+  int GetChildCount();
+  gfx::NativeViewAccessible ChildAtIndex(int index);
+
+ protected:
+  AXPlatformNodeBase();
+  virtual ~AXPlatformNodeBase();
+
+  virtual void Init(AXPlatformNodeDelegate* delegate);
+
+  AXPlatformNodeDelegate* delegate_;  // Weak. Owns this.
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(AXPlatformNodeBase);
+};
+
+}  // namespace ui
+
+#endif  // UI_ACCESSIBILITY_PLATFORM_AX_PLATFORM_NODE_BASE_H_