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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_ACCESSIBILITY_BRIDGE_FUCHSIA_H_
#define UI_ACCESSIBILITY_PLATFORM_FUCHSIA_ACCESSIBILITY_BRIDGE_FUCHSIA_H_
#include <fidl/fuchsia.accessibility.semantics/cpp/fidl.h>
#include <lib/inspect/cpp/vmo/types.h>
#include <optional>
#include "base/component_export.h"
namespace ui {
// Interface for clients to interact with fuchsia's platform accessibility
// framework.
class COMPONENT_EXPORT(AX_PLATFORM) AccessibilityBridgeFuchsia {
public:
virtual ~AccessibilityBridgeFuchsia() = default;
// Translates AXNodeDescriptorFuchsias to fuchsia IDs, fills the
// corresponding fields in |node_update.node_data|, and sends the update
// to fuchsia.
//
// Note that |node_update.node_data| should not have any node ID fields
// (node_id, child_ids, offset_container_id, etc.) filled initially.
virtual void UpdateNode(fuchsia_accessibility_semantics::Node node) = 0;
// Translates |node_id| to a fuchsia node ID, and sends the deletion to
// fuchsia.
virtual void DeleteNode(uint32_t node_id) = 0;
// hit_test_request_id: A unique ID for the hit test, generated by the client.
// result: The fuchsia node ID of the entity returned by the hit test.
//
// Method to notify the accessibility bridge when a hit test result is
// received.
virtual void OnAccessibilityHitTestResult(int hit_test_request_id,
std::optional<uint32_t> result) = 0;
// Returns the device scale factor.
virtual float GetDeviceScaleFactor() = 0;
// Specifies the unique ID of the root platform node.
virtual void SetRootID(uint32_t root_node_id) = 0;
// Returns an inspect::Node for the caller to own.
virtual inspect::Node GetInspectNode() = 0;
};
} // namespace ui
#endif // UI_ACCESSIBILITY_PLATFORM_FUCHSIA_ACCESSIBILITY_BRIDGE_FUCHSIA_H_
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