components/drive/drive_app_registry.cc

   1 // Copyright 2014 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.
   4
   5 #include "components/drive/drive_app_registry.h"
   6
   7 #include <algorithm>
   8 #include <set>
   9 #include <utility>
  10
  11 #include "base/callback.h"
  12 #include "base/files/file_path.h"
  13 #include "components/drive/drive_app_registry_observer.h"
  14 #include "components/drive/service/drive_service_interface.h"
  15 #include "google_apis/drive/drive_api_parser.h"
  16 #include "google_apis/google_api_keys.h"
  17
  18 namespace {
  19
  20 // Add {selector -> app_id} mapping to |map|.
  21 void AddAppSelectorList(const ScopedVector<std::string>& selectors,
  22                         const std::string& app_id,
  23                         std::multimap<std::string, std::string>* map) {
  24   for (size_t i = 0; i < selectors.size(); ++i)
  25     map->insert(std::make_pair(*selectors[i], app_id));
  26 }
  27
  28 // Append list of app ids in |map| looked up by |selector| to |matched_apps|.
  29 void FindAppsForSelector(const std::string& selector,
  30                          const std::multimap<std::string, std::string>& map,
  31                          std::vector<std::string>* matched_apps) {
  32   typedef std::multimap<std::string, std::string>::const_iterator iterator;
  33   std::pair<iterator, iterator> range = map.equal_range(selector);
  34   for (iterator it = range.first; it != range.second; ++it)
  35     matched_apps->push_back(it->second);
  36 }
  37
  38 void RemoveAppFromSelector(const std::string& app_id,
  39                            std::multimap<std::string, std::string>* map) {
  40   typedef std::multimap<std::string, std::string>::iterator iterator;
  41   for (iterator it = map->begin(); it != map->end(); ) {
  42     iterator now = it++;
  43     if (now->second == app_id)
  44       map->erase(now);
  45   }
  46 }
  47
  48 }  // namespace
  49
  50 namespace drive {
  51
  52 DriveAppInfo::DriveAppInfo() {
  53 }
  54
  55 DriveAppInfo::DriveAppInfo(
  56     const std::string& app_id,
  57     const std::string& product_id,
  58     const IconList& app_icons,
  59     const IconList& document_icons,
  60     const std::string& app_name,
  61     const GURL& create_url,
  62     bool is_removable)
  63     : app_id(app_id),
  64       product_id(product_id),
  65       app_icons(app_icons),
  66       document_icons(document_icons),
  67       app_name(app_name),
  68       create_url(create_url),
  69       is_removable(is_removable) {
  70 }
  71
  72 DriveAppInfo::~DriveAppInfo() {
  73 }
  74
  75 DriveAppRegistry::DriveAppRegistry(DriveServiceInterface* drive_service)
  76     : drive_service_(drive_service),
  77       is_updating_(false),
  78       weak_ptr_factory_(this) {
  79 }
  80
  81 DriveAppRegistry::~DriveAppRegistry() {
  82 }
  83
  84 void DriveAppRegistry::GetAppsForFile(
  85     const base::FilePath::StringType& file_extension,
  86     const std::string& mime_type,
  87     std::vector<DriveAppInfo>* apps) const {
  88   DCHECK(thread_checker_.CalledOnValidThread());
  89
  90   std::vector<std::string> matched_apps;
  91   if (!file_extension.empty()) {
  92     const std::string without_dot =
  93         base::FilePath(file_extension.substr(1)).AsUTF8Unsafe();
  94     FindAppsForSelector(without_dot, extension_map_, &matched_apps);
  95   }
  96   if (!mime_type.empty())
  97     FindAppsForSelector(mime_type, mimetype_map_, &matched_apps);
  98
  99   // Insert found Drive apps into |apps|, but skip duplicate results.
 100   std::set<std::string> inserted_app_ids;
 101   for (size_t i = 0; i < matched_apps.size(); ++i) {
 102     if (inserted_app_ids.count(matched_apps[i]) == 0) {
 103       inserted_app_ids.insert(matched_apps[i]);
 104       std::map<std::string, DriveAppInfo>::const_iterator it =
 105           all_apps_.find(matched_apps[i]);
 106       DCHECK(it != all_apps_.end());
 107       apps->push_back(it->second);
 108     }
 109   }
 110 }
 111
 112 void DriveAppRegistry::GetAppList(std::vector<DriveAppInfo>* apps) const {
 113   DCHECK(thread_checker_.CalledOnValidThread());
 114
 115   apps->clear();
 116   for (std::map<std::string, DriveAppInfo>::const_iterator
 117           it = all_apps_.begin(); it != all_apps_.end(); ++it) {
 118     apps->push_back(it->second);
 119   }
 120 }
 121
 122 void DriveAppRegistry::Update() {
 123   DCHECK(thread_checker_.CalledOnValidThread());
 124
 125   if (is_updating_)  // There is already an update in progress.
 126     return;
 127   is_updating_ = true;
 128
 129   drive_service_->GetAppList(
 130       base::Bind(&DriveAppRegistry::UpdateAfterGetAppList,
 131                  weak_ptr_factory_.GetWeakPtr()));
 132 }
 133
 134 void DriveAppRegistry::UpdateAfterGetAppList(
 135     google_apis::DriveApiErrorCode gdata_error,
 136     scoped_ptr<google_apis::AppList> app_list) {
 137   DCHECK(thread_checker_.CalledOnValidThread());
 138
 139   DCHECK(is_updating_);
 140   is_updating_ = false;
 141
 142   // Failed to fetch the data from the server. We can do nothing here.
 143   if (gdata_error != google_apis::HTTP_SUCCESS)
 144     return;
 145
 146   DCHECK(app_list);
 147   UpdateFromAppList(*app_list);
 148 }
 149
 150 void DriveAppRegistry::UpdateFromAppList(const google_apis::AppList& app_list) {
 151   all_apps_.clear();
 152   extension_map_.clear();
 153   mimetype_map_.clear();
 154
 155   for (size_t i = 0; i < app_list.items().size(); ++i) {
 156     const google_apis::AppResource& app = *app_list.items()[i];
 157     const std::string id = app.application_id();
 158
 159     DriveAppInfo::IconList app_icons;
 160     DriveAppInfo::IconList document_icons;
 161     for (size_t j = 0; j < app.icons().size(); ++j) {
 162       const google_apis::DriveAppIcon& icon = *app.icons()[j];
 163       if (icon.icon_url().is_empty())
 164         continue;
 165       if (icon.category() == google_apis::DriveAppIcon::APPLICATION)
 166         app_icons.push_back(std::make_pair(icon.icon_side_length(),
 167                                            icon.icon_url()));
 168       if (icon.category() == google_apis::DriveAppIcon::DOCUMENT)
 169         document_icons.push_back(std::make_pair(icon.icon_side_length(),
 170                                                 icon.icon_url()));
 171     }
 172
 173     all_apps_[id] = DriveAppInfo(app.application_id(),
 174                                  app.product_id(),
 175                                  app_icons,
 176                                  document_icons,
 177                                  app.name(),
 178                                  app.create_url(),
 179                                  app.is_removable());
 180
 181     // TODO(kinaba): consider taking primary/secondary distinction into account.
 182     AddAppSelectorList(app.primary_mimetypes(), id, &mimetype_map_);
 183     AddAppSelectorList(app.secondary_mimetypes(), id, &mimetype_map_);
 184     AddAppSelectorList(app.primary_file_extensions(), id, &extension_map_);
 185     AddAppSelectorList(app.secondary_file_extensions(), id, &extension_map_);
 186   }
 187
 188   FOR_EACH_OBSERVER(DriveAppRegistryObserver,
 189                     observers_,
 190                     OnDriveAppRegistryUpdated());
 191 }
 192
 193 void DriveAppRegistry::AddObserver(DriveAppRegistryObserver* observer) {
 194   observers_.AddObserver(observer);
 195 }
 196
 197 void DriveAppRegistry::RemoveObserver(DriveAppRegistryObserver* observer) {
 198   observers_.RemoveObserver(observer);
 199 }
 200
 201 void DriveAppRegistry::UninstallApp(const std::string& app_id,
 202                                     const UninstallCallback& callback) {
 203   DCHECK(!callback.is_null());
 204
 205   drive_service_->UninstallApp(app_id,
 206                                base::Bind(&DriveAppRegistry::OnAppUninstalled,
 207                                           weak_ptr_factory_.GetWeakPtr(),
 208                                           app_id,
 209                                           callback));
 210 }
 211
 212 void DriveAppRegistry::OnAppUninstalled(const std::string& app_id,
 213                                         const UninstallCallback& callback,
 214                                         google_apis::DriveApiErrorCode error) {
 215   if (error == google_apis::HTTP_NO_CONTENT) {
 216     all_apps_.erase(app_id);
 217     RemoveAppFromSelector(app_id, &mimetype_map_);
 218     RemoveAppFromSelector(app_id, &extension_map_);
 219   }
 220   callback.Run(error);
 221 }
 222
 223 // static
 224 bool DriveAppRegistry::IsAppUninstallSupported() {
 225   return google_apis::IsGoogleChromeAPIKeyUsed();
 226 }
 227
 228 namespace util {
 229
 230 GURL FindPreferredIcon(const DriveAppInfo::IconList& icons,
 231                        int preferred_size) {
 232   if (icons.empty())
 233     return GURL();
 234
 235   DriveAppInfo::IconList sorted_icons = icons;
 236   std::sort(sorted_icons.rbegin(), sorted_icons.rend());
 237
 238   // Go forward while the size is larger or equal to preferred_size.
 239   size_t i = 1;
 240   while (i < sorted_icons.size() && sorted_icons[i].first >= preferred_size)
 241     ++i;
 242   return sorted_icons[i - 1].second;
 243 }
 244
 245 }  // namespace util
 246 }  // namespace drive