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// Copyright 2016 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_NODE_POSITION_H_
#define UI_ACCESSIBILITY_AX_NODE_POSITION_H_
#include "ui/accessibility/ax_enums.mojom-forward.h"
#include "ui/accessibility/ax_export.h"
#include "ui/accessibility/ax_node.h"
#include "ui/accessibility/ax_position.h"
namespace ui {
// Returns a human-readable representation of `AXPositionKind`.
AX_EXPORT std::string ToString(const AXPositionKind kind);
// AXNodePosition includes implementations of AXPosition methods which require
// knowledge of the AXPosition AXNodeType (which is unknown by AXPosition).
class AX_EXPORT AXNodePosition : public AXPosition<AXNodePosition, AXNode> {
public:
// Creates either a text or a tree position, depending on the type of the node
// provided.
static AXPositionInstance CreatePosition(
const AXNode& node,
int child_index_or_text_offset,
ax::mojom::TextAffinity affinity = ax::mojom::TextAffinity::kDownstream);
AXNodePosition();
~AXNodePosition() override;
AXNodePosition(const AXNodePosition& other);
AXPositionInstance Clone() const override;
private:
// Return true if the provided node should always use a text position, rather
// than a tree position.
static bool IsTextPositionAnchor(const AXNode& node);
};
} // namespace ui
#endif // UI_ACCESSIBILITY_AX_NODE_POSITION_H_
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