ax_platform_node_delegate.h | Explore in Territory

// Copyright 2014 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_PLATFORM_AX_PLATFORM_NODE_DELEGATE_H_
#define UI_ACCESSIBILITY_PLATFORM_AX_PLATFORM_NODE_DELEGATE_H_

#include <stdint.h>

#include <map>
#include <memory>
#include <new>
#include <optional>
#include <ostream>
#include <set>
#include <string>
#include <utility>
#include <vector>

#include "base/component_export.h"
#include "base/strings/string_split.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/accessibility/ax_clipping_behavior.h"
#include "ui/accessibility/ax_coordinate_system.h"
#include "ui/accessibility/ax_enums.mojom-forward.h"
#include "ui/accessibility/ax_node.h"
#include "ui/accessibility/ax_node_position.h"
#include "ui/accessibility/ax_offscreen_result.h"
#include "ui/accessibility/ax_position.h"
#include "ui/accessibility/ax_text_attributes.h"
#include "ui/accessibility/ax_text_utils.h"
#include "ui/accessibility/ax_tree.h"
#include "ui/accessibility/ax_tree_id.h"
#include "ui/accessibility/platform/ax_platform_node.h"
#include "ui/accessibility/platform/ax_platform_node_id.h"
#include "ui/gfx/geometry/vector2d.h"
#include "ui/gfx/native_widget_types.h"

namespace gfx {

class Rect;

}  // namespace gfx

namespace ui {

struct AXActionData;
struct AXNodeData;
struct AXTreeData;
class ChildIterator;

TextAttribute;
TextAttributeList;

// A TextAttributeMap is a map between the text offset in UTF-16 characters in
// the node hypertext and the TextAttributeList that starts at that location.
// An empty TextAttributeList signifies a return to the default node
// TextAttributeList.
TextAttributeMap;

// An object that wants to be accessible should derive from this class.
// AXPlatformNode subclasses use this interface to query all of the information
// about the object in order to implement native accessibility APIs.
//
// Note that AXPlatformNode has support for accessibility trees where some
// of the objects in the tree are not implemented using AXPlatformNode.
// For example, you may have a native window with platform-native widgets
// in it, but in that window you have custom controls that use AXPlatformNode
// to provide accessibility. That's why GetParent, ChildAtIndex, HitTestSync,
// and GetFocus all return a gfx::NativeViewAccessible - so you can return a
// native accessible if necessary, and AXPlatformNode::GetNativeViewAccessible
// otherwise.
class COMPONENT_EXPORT(AX_PLATFORM) AXPlatformNodeDelegate { … };

}  // namespace ui

#endif  // UI_ACCESSIBILITY_PLATFORM_AX_PLATFORM_NODE_DELEGATE_H_
chromium/ui/accessibility/platform/ax_platform_node_delegate.h
