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- // Copyright 2019 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_NULL_AX_ACTION_TARGET_H_
- #define UI_ACCESSIBILITY_NULL_AX_ACTION_TARGET_H_
- #include "ui/accessibility/ax_action_target.h"
- #include "ui/accessibility/ax_export.h"
- namespace ui {
- // A do-nothing action target.
- class AX_EXPORT NullAXActionTarget : public AXActionTarget {
- public:
- NullAXActionTarget() = default;
- ~NullAXActionTarget() override = default;
- protected:
- // AXActionTarget overrides.
- Type GetType() const override;
- bool PerformAction(const AXActionData& action_data) const override;
- gfx::Rect GetRelativeBounds() const override;
- gfx::Point GetScrollOffset() const override;
- gfx::Point MinimumScrollOffset() const override;
- gfx::Point MaximumScrollOffset() const override;
- void SetScrollOffset(const gfx::Point& point) const override;
- bool SetSelected(bool selected) const override;
- bool SetSelection(const AXActionTarget* anchor_object,
- int anchor_offset,
- const AXActionTarget* focus_object,
- int focus_offset) const override;
- bool ScrollToMakeVisible() const override;
- bool ScrollToMakeVisibleWithSubFocus(
- const gfx::Rect& rect,
- ax::mojom::ScrollAlignment horizontal_scroll_alignment,
- ax::mojom::ScrollAlignment vertical_scroll_alignment,
- ax::mojom::ScrollBehavior scroll_behavior) const override;
- };
- } // namespace ui
- #endif // UI_ACCESSIBILITY_NULL_AX_ACTION_TARGET_H_
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