blob: 1f50c3adddb687ec82b3bc9bc8327b04b1ba0ad0 [file] [log] [blame]
// Copyright 2018 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.
#include "base/macros.h"
#include "ui/accessibility/ax_node_data.h"
#include "ui/accessibility/ax_tree_data.h"
#include "ui/accessibility/ax_tree_source.h"
#include "ui/views/views_export.h"
namespace ui {
struct AXActionData;
namespace views {
class AXAuraObjWrapper;
// This class exposes the views hierarchy as an accessibility tree permitting
// use with other accessibility classes. Subclasses must implement GetRoot().
// The root can be an existing object in the Widget/View hierarchy or a new node
// (for example to create the "desktop" node for the extension API call
// chrome.automation.getDesktop()).
class VIEWS_EXPORT AXTreeSourceViews
: public ui::
AXTreeSource<AXAuraObjWrapper*, ui::AXNodeData, ui::AXTreeData> {
// Invokes an action on an Aura object.
void HandleAccessibleAction(const ui::AXActionData& action);
// AXTreeSource:
bool GetTreeData(ui::AXTreeData* data) const override;
// GetRoot() must be implemented by subclasses.
AXAuraObjWrapper* GetFromId(int32_t id) const override;
int32_t GetId(AXAuraObjWrapper* node) const override;
void GetChildren(AXAuraObjWrapper* node,
std::vector<AXAuraObjWrapper*>* out_children) const override;
AXAuraObjWrapper* GetParent(AXAuraObjWrapper* node) const override;
bool IsValid(AXAuraObjWrapper* node) const override;
bool IsEqual(AXAuraObjWrapper* node1, AXAuraObjWrapper* node2) const override;
AXAuraObjWrapper* GetNull() const override;
void SerializeNode(AXAuraObjWrapper* node,
ui::AXNodeData* out_data) const override;
// Useful for debugging.
std::string ToString(views::AXAuraObjWrapper* root, std::string prefix);
~AXTreeSourceViews() override;
} // namespace views