chromium/ui/accessibility/ax_action_handler_base.h

// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_ACCESSIBILITY_AX_ACTION_HANDLER_BASE_H_
#define UI_ACCESSIBILITY_AX_ACTION_HANDLER_BASE_H_

#include "ui/accessibility/ax_base_export.h"
#include "ui/accessibility/ax_tree_id.h"

namespace ui {

struct AXActionData;

// Classes that host an accessibility tree in the browser process that also wish
// to become visible to accessibility clients (e.g. for relaying targets to
// source accessibility trees), can subclass this class. However, unless you
// need to have more control over how |tree_id_| is set, most classes will want
// to inherit from AXActionHandler instead, which manages it automatically.
//
// Subclasses can use |tree_id| when annotating their |AXNodeData| for clients
// to respond with the appropriate target node id.
class AX_BASE_EXPORT AXActionHandlerBase { … };

}  // namespace ui

#endif  // UI_ACCESSIBILITY_AX_ACTION_HANDLER_BASE_H_