File: constants_util.cc

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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/ui/webui/ash/settings/constants/constants_util.h"

#include <vector>

#include "base/no_destructor.h"

namespace ash::settings {
namespace {

namespace mojom {
using ::chromeos::settings::mojom::Section;
using ::chromeos::settings::mojom::Setting;
using ::chromeos::settings::mojom::Subpage;
}  // namespace mojom

template <typename T>
std::vector<T> All() {
  int32_t min_value = static_cast<int32_t>(T::kMinValue);
  int32_t max_value = static_cast<int32_t>(T::kMaxValue);

  std::vector<T> all;
  for (int32_t i = min_value; i <= max_value; ++i) {
    T current = static_cast<T>(i);

    // Not every value between the min and max values is valid:
    // (1) We use a numbering scheme which purposely skips some values for the
    //     Subpage and Setting enums.
    // (2) Some values are deprecated and removed.
    if (chromeos::settings::mojom::IsKnownEnumValue(current)) {
      all.push_back(current);
    }
  }

  return all;
}

}  // namespace

const std::vector<mojom::Section>& AllSections() {
  static const base::NoDestructor<std::vector<mojom::Section>> all_sections([] {
    std::vector<mojom::Section> sections = All<mojom::Section>();
    return sections;
  }());

  return *all_sections;
}

const std::vector<mojom::Subpage>& AllSubpages() {
  static const base::NoDestructor<std::vector<mojom::Subpage>> all_subpages([] {
    std::vector<mojom::Subpage> subpages = All<mojom::Subpage>();
    std::erase(subpages, mojom::Subpage::kInternalStorybook);
    return subpages;
  }());
  return *all_subpages;
}

const std::vector<mojom::Setting>& AllSettings() {
  static const base::NoDestructor<std::vector<mojom::Setting>> all_settings(
      All<mojom::Setting>());
  return *all_settings;
}

}  // namespace ash::settings