ATK accessibility support for web content on Aura Linux.

content/browser/accessibility/browser_accessibility_auralinux.h

+// Copyright (c) 2015 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 CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_AURALINUX_H_
+#define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_AURALINUX_H_
+
+#include <atk/atk.h>
+
+#include "base/compiler_specific.h"
+#include "content/browser/accessibility/browser_accessibility.h"
+
+namespace content {
+
+class BrowserAccessibilityAuraLinux;
+class BrowserAccessibilityManagerAuraLinux;
+
+G_BEGIN_DECLS
+
+#define BROWSER_ACCESSIBILITY_TYPE (browser_accessibility_get_type())
+#define BROWSER_ACCESSIBILITY(obj)                               \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj), BROWSER_ACCESSIBILITY_TYPE, \
+                              BrowserAccessibilityAtk))
+#define BROWSER_ACCESSIBILITY_CLASS(klass)                      \
+  (G_TYPE_CHECK_CLASS_CAST((klass), BROWSER_ACCESSIBILITY_TYPE, \
+                           BrowserAccessibilityAtkClass))
+#define IS_BROWSER_ACCESSIBILITY(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj), BROWSER_ACCESSIBILITY_TYPE))
+#define IS_BROWSER_ACCESSIBILITY_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass), BROWSER_ACCESSIBILITY_TYPE))
+#define BROWSER_ACCESSIBILITY_GET_CLASS(obj)                    \
+  (G_TYPE_INSTANCE_GET_CLASS((obj), BROWSER_ACCESSIBILITY_TYPE, \
+                             BrowserAccessibilityAtkClass))
+
+typedef struct _BrowserAccessibilityAtk BrowserAccessibilityAtk;
+typedef struct _BrowserAccessibilityAtkClass BrowserAccessibilityAtkClass;
+
+struct _BrowserAccessibilityAtk {
+  AtkObject parent;
+  BrowserAccessibilityAuraLinux* m_object;
+};
+
+struct _BrowserAccessibilityAtkClass {
+  AtkObjectClass parent_class;
+};
+
+GType browser_accessibility_get_type(void) G_GNUC_CONST;
+
+BrowserAccessibilityAtk* browser_accessibility_new(
+    BrowserAccessibilityAuraLinux* object);
+
+BrowserAccessibilityAuraLinux* browser_accessibility_get_object(
+    BrowserAccessibilityAtk* atk_object);
+
+void browser_accessibility_detach(BrowserAccessibilityAtk* atk_object);
+
+AtkObject* browser_accessibility_get_focused_element(
+    BrowserAccessibilityAtk* atk_object);
+
+G_END_DECLS
+
+class BrowserAccessibilityAuraLinux : public BrowserAccessibility {
+ public:
+  BrowserAccessibilityAuraLinux();
+
+  ~BrowserAccessibilityAuraLinux() override;
+
+  AtkObject* GetAtkObject() const;
+
+  AtkRole atk_role() { return atk_role_; }
+
+  // BrowserAccessibility methods.
+  void OnDataChanged() override;
+  bool IsNative() const override;
+
+ private:
+  virtual void InitRoleAndState();
+
+  // Give BrowserAccessibility::Create access to our constructor.
+  friend class BrowserAccessibility;
+
+  AtkObject* atk_object_;
+  AtkRole atk_role_;
+  int interface_mask_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityAuraLinux);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_AURALINUX_H_