1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "chrome/browser/resources_util.h"
11 #include "base/containers/flat_map.h"
12 #include "base/no_destructor.h"
13 #include "build/build_config.h"
14 #include "chrome/grit/theme_resources_map.h"
15 #include "components/grit/components_scaled_resources_map.h"
16 #include "ui/resources/grit/ui_resources_map.h"
18 #if defined(OS_CHROMEOS)
19 #include "ui/chromeos/resources/grit/ui_chromeos_resources_map.h"
24 // A wrapper class that holds a map between resource strings and resource
25 // ids. This is done so we can use base::NoDestructor which takes care of
26 // thread safety in initializing the map for us.
29 using StringIntMap = base::flat_map<std::string, int>;
33 kComponentsScaledResourcesSize + kThemeResourcesSize + kUiResourcesSize;
34 #if defined(OS_CHROMEOS)
35 storage_size += kUiChromeosResourcesSize;
38 // Construct in one-shot from a moved vector.
39 std::vector<StringIntMap::value_type> storage;
40 storage.reserve(storage_size);
42 for (size_t i = 0; i < kComponentsScaledResourcesSize; ++i) {
43 storage.emplace_back(kComponentsScaledResources[i].name,
44 kComponentsScaledResources[i].value);
46 for (size_t i = 0; i < kThemeResourcesSize; ++i) {
47 storage.emplace_back(kThemeResources[i].name, kThemeResources[i].value);
49 for (size_t i = 0; i < kUiResourcesSize; ++i) {
50 storage.emplace_back(kUiResources[i].name, kUiResources[i].value);
52 #if defined(OS_CHROMEOS)
53 for (size_t i = 0; i < kUiChromeosResourcesSize; ++i) {
54 storage.emplace_back(kUiChromeosResources[i].name,
55 kUiChromeosResources[i].value);
59 id_map_ = StringIntMap(std::move(storage));
62 int GetId(const std::string& resource_name) const {
63 auto it = id_map_.find(resource_name);
64 return it != id_map_.end() ? it->second : -1;
71 ThemeMap& GetThemeIdsMap() {
72 static base::NoDestructor<ThemeMap> s;
78 int ResourcesUtil::GetThemeResourceId(const std::string& resource_name) {
79 return GetThemeIdsMap().GetId(resource_name);