test_ax_node_helper.h

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// Copyright 2020 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.
 
#ifndef UI_ACCESSIBILITY_TEST_AX_NODE_HELPER_H_
#define UI_ACCESSIBILITY_TEST_AX_NODE_HELPER_H_
 
#include "ax_clipping_behavior.h"
#include "ax_coordinate_system.h"
#include "ax_node.h"
#include "ax_offscreen_result.h"
#include "ax_tree.h"
 
namespace ui {
 
// For testing, a TestAXNodeHelper wraps an AXNode. This is a simple
// version of TestAXNodeWrapper.
class TestAXNodeHelper {
 public:
  // Create TestAXNodeHelper instances on-demand from an AXTree and AXNode.
  static TestAXNodeHelper* GetOrCreate(AXTree* tree, AXNode* node);
  ~TestAXNodeHelper();
 
  gfx::Rect GetBoundsRect(const AXCoordinateSystem coordinate_system,
                          const AXClippingBehavior clipping_behavior,
                          AXOffscreenResult* offscreen_result) const;
  gfx::Rect GetInnerTextRangeBoundsRect(
      const int start_offset,
      const int end_offset,
      const AXCoordinateSystem coordinate_system,
      const AXClippingBehavior clipping_behavior,
      AXOffscreenResult* offscreen_result) const;
 
 private:
  TestAXNodeHelper(AXTree* tree, AXNode* node);
  int InternalChildCount() const;
  TestAXNodeHelper* InternalGetChild(int index) const;
  const AXNodeData& GetData() const;
  gfx::RectF GetLocation() const;
  gfx::RectF GetInlineTextRect(const int start_offset,
                               const int end_offset) const;
  AXOffscreenResult DetermineOffscreenResult(gfx::RectF bounds) const;
 
  AXTree* tree_;
  AXNode* node_;
};
 
}  // namespace ui
 
#endif  // UI_ACCESSIBILITY_TEST_AX_NODE_HELPER_H_