chromium/ui/accessibility/ax_tree_observer.h

// Copyright 2018 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_TREE_OBSERVER_H_
#define UI_ACCESSIBILITY_AX_TREE_OBSERVER_H_

#include "base/memory/raw_ptr.h"
#include "base/observer_list_types.h"
#include "ui/accessibility/ax_enums.mojom-forward.h"
#include "ui/accessibility/ax_export.h"
#include "ui/accessibility/ax_node_data.h"
#include "ui/accessibility/ax_tree_id.h"

namespace ui {

class AXNode;
class AXTree;
struct AXTreeData;

// Used when you want to be notified when changes happen to an AXTree.
//
// |OnAtomicUpdateFinished| is notified at the end of an atomic update.
// It provides a vector of nodes that were added or changed, for final
// postprocessing.
class AX_EXPORT AXTreeObserver : public base::CheckedObserver { … };

}  // namespace ui

#endif  // UI_ACCESSIBILITY_AX_TREE_OBSERVER_H_