blob: 650558d5c7fe23210508e2215806a5dad3e08085 [file] [log] [blame]
// Copyright 2014 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.
#include <stddef.h>
#include <stdint.h>
#include <memory>
#include <vector>
#include "services/device/public/cpp/hid/hid_collection.h"
#include "services/device/public/cpp/hid/hid_report_descriptor_item.h"
#include "services/device/public/mojom/hid.mojom.h"
namespace device {
// HID report descriptor.
// See section 6.2.2 of HID specifications (v1.11).
class HidReportDescriptor {
HidReportDescriptor(const std::vector<uint8_t>& bytes);
const std::vector<std::unique_ptr<HidReportDescriptorItem>>& items() const {
return items_;
const std::vector<std::unique_ptr<HidCollection>>& collections() const {
return collections_;
// Return the top-level collections present in the descriptor,
// together with max report sizes.
void GetDetails(
std::vector<mojom::HidCollectionInfoPtr>* top_level_collections,
bool* has_report_id,
size_t* max_input_report_bytes,
size_t* max_output_report_bytes,
size_t* max_feature_report_bytes) const;
// An ordered sequence of HidReportDescriptorItem objects representing the
// items that make up a HID report descriptor.
std::vector<std::unique_ptr<HidReportDescriptorItem>> items_;
// A hierarchichal representation of the collections and reports described by
// the HID report descriptor.
std::vector<std::unique_ptr<HidCollection>> collections_;
} // namespace device