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// Copyright 2021 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_FUCHSIA_BROWSER_ACCESSIBILITY_FUCHSIA_H_
#define UI_ACCESSIBILITY_PLATFORM_FUCHSIA_BROWSER_ACCESSIBILITY_FUCHSIA_H_
#include <fidl/fuchsia.accessibility.semantics/cpp/fidl.h>
#include <vector>
#include "base/component_export.h"
#include "ui/accessibility/ax_node.h"
#include "ui/accessibility/ax_node_data.h"
#include "ui/accessibility/ax_relative_bounds.h"
#include "ui/accessibility/platform/browser_accessibility.h"
#include "ui/accessibility/platform/fuchsia/accessibility_bridge_fuchsia.h"
#include "ui/accessibility/platform/fuchsia/ax_platform_node_fuchsia.h"
#include "ui/accessibility/platform/fuchsia/browser_accessibility_manager_fuchsia.h"
namespace ui {
// Fuchsia-specific wrapper for a AXPlatformNode. Each
// BrowserAccessibilityFuchsia object is owned by a
// BrowserAccessibilityManagerFuchsia.
class COMPONENT_EXPORT(AX_PLATFORM) BrowserAccessibilityFuchsia : public BrowserAccessibility {
public:
BrowserAccessibilityFuchsia(BrowserAccessibilityManager* manager,
AXNode* node);
~BrowserAccessibilityFuchsia() override;
// Disallow copy and assign.
BrowserAccessibilityFuchsia(const BrowserAccessibilityFuchsia&) = delete;
BrowserAccessibilityFuchsia& operator=(const BrowserAccessibilityFuchsia&) =
delete;
// Returns the fuchsia representation of the AXNode to which this
// BrowserAccessibility object refers.
fuchsia_accessibility_semantics::Node ToFuchsiaNodeData() const;
// Returns the fuchsia ID of this node's offset container if the offset
// container ID is valid. Otherwise, returns the ID of this tree's root node.
uint32_t GetOffsetContainerOrRootNodeID() const;
// BrowserAccessibility overrides.
void OnDataChanged() override;
void OnLocationChanged() override;
AXPlatformNode* GetAXPlatformNode() const override;
bool AccessibilityPerformAction(const AXActionData& action_data) override;
void OnScrollChanged();
// Returns this object's AXUniqueID as a uint32_t.
uint32_t GetFuchsiaNodeID() const;
protected:
friend class BrowserAccessibility; // Needs access to our constructor.
private:
AccessibilityBridgeFuchsia* GetAccessibilityBridge() const;
void UpdateNode();
void DeleteNode();
std::vector<fuchsia_accessibility_semantics::Action> GetFuchsiaActions()
const;
fuchsia_accessibility_semantics::Role GetFuchsiaRole() const;
fuchsia_accessibility_semantics::States GetFuchsiaStates() const;
fuchsia_accessibility_semantics::Attributes GetFuchsiaAttributes() const;
fuchsia_ui_gfx::BoundingBox GetFuchsiaLocation() const;
fuchsia_ui_gfx::Mat4 GetFuchsiaTransform() const;
std::vector<uint32_t> GetFuchsiaChildIDs() const;
// Returns true if this AXNode has role AXRole::kList.
// This may need to be expanded later to include more roles, maybe using
// IsList
// (https://source.chromium.org/chromium/chromium/src/+/main:ui/accessibility/ax_role_properties.cc;l=399;drc=2c712b0d61f0788c0ed1b05176ae7430e8c705e5;bpv=1;bpt=1).
bool IsList() const;
// Returns true if this AXNode has role AXRole::klistItem.
// This may need to be expanded later to include more roles, maybe using
// IsListItem
// (https://source.chromium.org/chromium/chromium/src/+/main:ui/accessibility/ax_role_properties.cc;drc=2c712b0d61f0788c0ed1b05176ae7430e8c705e5;l=413).
bool IsListElement() const;
// Returns true if this AXNode should be mapped to Fuchsia's Default action.
bool IsFuchsiaDefaultAction() const;
// Fuchsia-specific representation of this node.
AXPlatformNode::Pointer platform_node_;
};
BrowserAccessibilityFuchsia* COMPONENT_EXPORT(AX_PLATFORM)
ToBrowserAccessibilityFuchsia(BrowserAccessibility* obj);
} // namespace ui
#endif // UI_ACCESSIBILITY_PLATFORM_FUCHSIA_BROWSER_ACCESSIBILITY_FUCHSIA_H_
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