chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc

   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.
   4
   5 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
   6
   7 #include <vector>
   8
   9 #include "base/bind.h"
  10 #include "base/command_line.h"
  11 #include "base/location.h"
  12 #include "base/message_loop/message_loop_proxy.h"
  13 #include "base/prefs/pref_service.h"
  14 #include "chrome/browser/about_flags.h"
  15 #include "chrome/browser/bookmarks/enhanced_bookmarks_features.h"
  16 #include "chrome/browser/dom_distiller/dom_distiller_service_factory.h"
  17 #include "chrome/browser/favicon/favicon_service.h"
  18 #include "chrome/browser/history/history_types.h"
  19 #include "chrome/browser/profiles/profile.h"
  20 #include "chrome/browser/profiles/profile_manager.h"
  21 #include "chrome/browser/ui/webui/about_ui.h"
  22 #include "chrome/browser/ui/webui/app_launcher_page_ui.h"
  23 #include "chrome/browser/ui/webui/bookmarks_ui.h"
  24 #include "chrome/browser/ui/webui/components_ui.h"
  25 #include "chrome/browser/ui/webui/constrained_web_dialog_ui.h"
  26 #include "chrome/browser/ui/webui/crashes_ui.h"
  27 #include "chrome/browser/ui/webui/devtools_ui.h"
  28 #include "chrome/browser/ui/webui/domain_reliability_internals_ui.h"
  29 #include "chrome/browser/ui/webui/downloads_ui.h"
  30 #include "chrome/browser/ui/webui/flags_ui.h"
  31 #include "chrome/browser/ui/webui/flash_ui.h"
  32 #include "chrome/browser/ui/webui/gcm_internals_ui.h"
  33 #include "chrome/browser/ui/webui/help/help_ui.h"
  34 #include "chrome/browser/ui/webui/history_ui.h"
  35 #include "chrome/browser/ui/webui/identity_internals_ui.h"
  36 #include "chrome/browser/ui/webui/inspect_ui.h"
  37 #include "chrome/browser/ui/webui/instant_ui.h"
  38 #include "chrome/browser/ui/webui/interstitials/interstitial_ui.h"
  39 #include "chrome/browser/ui/webui/invalidations_ui.h"
  40 #include "chrome/browser/ui/webui/memory_internals/memory_internals_ui.h"
  41 #include "chrome/browser/ui/webui/net_internals/net_internals_ui.h"
  42 #include "chrome/browser/ui/webui/omnibox/omnibox_ui.h"
  43 #include "chrome/browser/ui/webui/options/options_ui.h"
  44 #include "chrome/browser/ui/webui/password_manager_internals/password_manager_internals_ui.h"
  45 #include "chrome/browser/ui/webui/plugins_ui.h"
  46 #include "chrome/browser/ui/webui/predictors/predictors_ui.h"
  47 #include "chrome/browser/ui/webui/profiler_ui.h"
  48 #include "chrome/browser/ui/webui/signin/inline_login_ui.h"
  49 #include "chrome/browser/ui/webui/signin/profile_signin_confirmation_ui.h"
  50 #include "chrome/browser/ui/webui/signin/user_manager_ui.h"
  51 #include "chrome/browser/ui/webui/signin_internals_ui.h"
  52 #include "chrome/browser/ui/webui/sync_internals_ui.h"
  53 #include "chrome/browser/ui/webui/translate_internals/translate_internals_ui.h"
  54 #include "chrome/browser/ui/webui/user_actions/user_actions_ui.h"
  55 #include "chrome/browser/ui/webui/version_ui.h"
  56 #include "chrome/common/chrome_switches.h"
  57 #include "chrome/common/pref_names.h"
  58 #include "chrome/common/url_constants.h"
  59 #include "components/dom_distiller/core/dom_distiller_constants.h"
  60 #include "components/dom_distiller/core/dom_distiller_service.h"
  61 #include "components/dom_distiller/core/url_constants.h"
  62 #include "components/dom_distiller/webui/dom_distiller_ui.h"
  63 #include "components/favicon_base/favicon_util.h"
  64 #include "components/favicon_base/select_favicon_frames.h"
  65 #include "components/password_manager/core/common/password_manager_switches.h"
  66 #include "components/signin/core/common/profile_management_switches.h"
  67 #include "content/public/browser/web_contents.h"
  68 #include "content/public/browser/web_ui.h"
  69 #include "content/public/common/content_client.h"
  70 #include "content/public/common/url_utils.h"
  71 #include "ui/gfx/favicon_size.h"
  72 #include "ui/web_dialogs/web_dialog_ui.h"
  73 #include "url/gurl.h"
  74
  75 #if !defined(DISABLE_NACL)
  76 #include "chrome/browser/ui/webui/nacl_ui.h"
  77 #endif
  78
  79 #if defined(ENABLE_CONFIGURATION_POLICY)
  80 #include "chrome/browser/ui/webui/policy_ui.h"
  81 #endif
  82
  83 #if defined(ENABLE_WEBRTC)
  84 #include "chrome/browser/ui/webui/media/webrtc_logs_ui.h"
  85 #endif
  86
  87 #if defined(ENABLE_FULL_PRINTING)
  88 #include "chrome/browser/ui/webui/print_preview/print_preview_ui.h"
  89 #endif
  90
  91 #if defined(OS_ANDROID)
  92 #include "chrome/browser/ui/webui/welcome_ui_android.h"
  93 #else
  94 #include "chrome/browser/ui/webui/ntp/new_tab_ui.h"
  95 #include "chrome/browser/ui/webui/quota_internals/quota_internals_ui.h"
  96 #include "chrome/browser/ui/webui/suggestions_internals/suggestions_internals_ui.h"
  97 #include "chrome/browser/ui/webui/sync_file_system_internals/sync_file_system_internals_ui.h"
  98 #include "chrome/browser/ui/webui/system_info_ui.h"
  99 #include "chrome/browser/ui/webui/uber/uber_ui.h"
 100 #endif
 101
 102 #if defined(OS_ANDROID) || defined(OS_IOS)
 103 #include "chrome/browser/ui/webui/net_export_ui.h"
 104 #endif
 105
 106 #if defined(OS_CHROMEOS)
 107 #include "chrome/browser/ui/webui/chromeos/bluetooth_pairing_ui.h"
 108 #include "chrome/browser/ui/webui/chromeos/certificate_manager_dialog_ui.h"
 109 #include "chrome/browser/ui/webui/chromeos/charger_replacement_ui.h"
 110 #include "chrome/browser/ui/webui/chromeos/choose_mobile_network_ui.h"
 111 #include "chrome/browser/ui/webui/chromeos/cryptohome_ui.h"
 112 #include "chrome/browser/ui/webui/chromeos/drive_internals_ui.h"
 113 #include "chrome/browser/ui/webui/chromeos/first_run/first_run_ui.h"
 114 #include "chrome/browser/ui/webui/chromeos/imageburner/imageburner_ui.h"
 115 #include "chrome/browser/ui/webui/chromeos/keyboard_overlay_ui.h"
 116 #include "chrome/browser/ui/webui/chromeos/login/oobe_ui.h"
 117 #include "chrome/browser/ui/webui/chromeos/mobile_setup_ui.h"
 118 #include "chrome/browser/ui/webui/chromeos/network_ui.h"
 119 #include "chrome/browser/ui/webui/chromeos/nfc_debug_ui.h"
 120 #include "chrome/browser/ui/webui/chromeos/power_ui.h"
 121 #include "chrome/browser/ui/webui/chromeos/provided_file_systems_ui.h"
 122 #include "chrome/browser/ui/webui/chromeos/proxy_settings_ui.h"
 123 #include "chrome/browser/ui/webui/chromeos/salsa_ui.h"
 124 #include "chrome/browser/ui/webui/chromeos/set_time_ui.h"
 125 #include "chrome/browser/ui/webui/chromeos/sim_unlock_ui.h"
 126 #include "chrome/browser/ui/webui/chromeos/slow_trace_ui.h"
 127 #include "chrome/browser/ui/webui/chromeos/slow_ui.h"
 128 #endif
 129
 130 #if defined(USE_AURA)
 131 #include "chrome/browser/ui/webui/gesture_config_ui.h"
 132 #endif
 133
 134 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 135 #include "chrome/browser/ui/sync/sync_promo_ui.h"
 136 #endif
 137
 138 #if defined(OS_WIN)
 139 #include "chrome/browser/ui/webui/conflicts_ui.h"
 140 #include "chrome/browser/ui/webui/set_as_default_browser_ui.h"
 141 #endif
 142
 143 #if (defined(USE_NSS) || defined(USE_OPENSSL)) && defined(USE_AURA)
 144 #include "chrome/browser/ui/webui/certificate_viewer_ui.h"
 145 #endif
 146
 147 #if defined(ENABLE_SERVICE_DISCOVERY)
 148 #include "chrome/browser/ui/webui/local_discovery/local_discovery_ui.h"
 149 #endif
 150
 151 #if defined(ENABLE_APP_LIST)
 152 #include "chrome/browser/ui/webui/app_list/start_page_ui.h"
 153 #endif
 154
 155 #if defined(ENABLE_EXTENSIONS)
 156 #include "chrome/browser/extensions/extension_web_ui.h"
 157 #include "chrome/browser/ui/webui/extensions/extension_info_ui.h"
 158 #include "chrome/browser/ui/webui/extensions/extensions_ui.h"
 159 #include "chrome/browser/ui/webui/voicesearch_ui.h"
 160 #include "chrome/common/extensions/extension_constants.h"
 161 #include "extensions/browser/extension_registry.h"
 162 #include "extensions/browser/extension_system.h"
 163 #include "extensions/common/constants.h"
 164 #include "extensions/common/extension.h"
 165 #include "extensions/common/feature_switch.h"
 166 #include "extensions/common/manifest.h"
 167 #endif
 168
 169 using content::WebUI;
 170 using content::WebUIController;
 171 using ui::ExternalWebDialogUI;
 172 using ui::WebDialogUI;
 173
 174 namespace {
 175
 176 // A function for creating a new WebUI. The caller owns the return value, which
 177 // may be NULL (for example, if the URL refers to an non-existent extension).
 178 typedef WebUIController* (*WebUIFactoryFunction)(WebUI* web_ui,
 179                                                  const GURL& url);
 180
 181 // Template for defining WebUIFactoryFunction.
 182 template<class T>
 183 WebUIController* NewWebUI(WebUI* web_ui, const GURL& url) {
 184   return new T(web_ui);
 185 }
 186
 187 #if defined(ENABLE_EXTENSIONS)
 188 // Special cases for extensions.
 189 template<>
 190 WebUIController* NewWebUI<ExtensionWebUI>(WebUI* web_ui,
 191                                           const GURL& url) {
 192   return new ExtensionWebUI(web_ui, url);
 193 }
 194 #endif  // defined(ENABLE_EXTENSIONS)
 195
 196 // Special case for older about: handlers.
 197 template<>
 198 WebUIController* NewWebUI<AboutUI>(WebUI* web_ui, const GURL& url) {
 199   return new AboutUI(web_ui, url.host());
 200 }
 201
 202 #if defined(OS_CHROMEOS)
 203 template<>
 204 WebUIController* NewWebUI<chromeos::OobeUI>(WebUI* web_ui, const GURL& url) {
 205   return new chromeos::OobeUI(web_ui, url);
 206 }
 207 #endif
 208
 209 // Special cases for DOM distiller.
 210 template<>
 211 WebUIController* NewWebUI<dom_distiller::DomDistillerUi>(WebUI* web_ui,
 212                                                          const GURL& url) {
 213   // The DomDistillerUi can not depend on components/dom_distiller/content,
 214   // so inject the correct DomDistillerService from chrome/.
 215   content::BrowserContext* browser_context =
 216       web_ui->GetWebContents()->GetBrowserContext();
 217   dom_distiller::DomDistillerService* service =
 218       dom_distiller::DomDistillerServiceFactory::GetForBrowserContext(
 219           browser_context);
 220   return new dom_distiller::DomDistillerUi(
 221       web_ui, service, dom_distiller::kDomDistillerScheme);
 222 }
 223
 224 #if defined(ENABLE_EXTENSIONS)
 225 // Only create ExtensionWebUI for URLs that are allowed extension bindings,
 226 // hosted by actual tabs.
 227 bool NeedsExtensionWebUI(Profile* profile, const GURL& url) {
 228   if (!profile)
 229     return false;
 230
 231   const extensions::Extension* extension =
 232       extensions::ExtensionRegistry::Get(profile)->enabled_extensions().
 233           GetExtensionOrAppByURL(url);
 234   // Allow bindings for all packaged extensions and component hosted apps.
 235   return extension &&
 236       (!extension->is_hosted_app() ||
 237        extension->location() == extensions::Manifest::COMPONENT);
 238 }
 239 #endif
 240
 241 // Returns a function that can be used to create the right type of WebUI for a
 242 // tab, based on its URL. Returns NULL if the URL doesn't have WebUI associated
 243 // with it.
 244 WebUIFactoryFunction GetWebUIFactoryFunction(WebUI* web_ui,
 245                                              Profile* profile,
 246                                              const GURL& url) {
 247 #if defined(ENABLE_EXTENSIONS)
 248   if (NeedsExtensionWebUI(profile, url))
 249     return &NewWebUI<ExtensionWebUI>;
 250 #endif
 251
 252   // This will get called a lot to check all URLs, so do a quick check of other
 253   // schemes to filter out most URLs.
 254   if (!url.SchemeIs(content::kChromeDevToolsScheme) &&
 255       !url.SchemeIs(content::kChromeUIScheme)) {
 256     return NULL;
 257   }
 258
 259   /****************************************************************************
 260    * Please keep this in alphabetical order. If #ifs or special logics are
 261    * required, add it below in the appropriate section.
 262    ***************************************************************************/
 263   // We must compare hosts only since some of the Web UIs append extra stuff
 264   // after the host name.
 265   // All platform builds of Chrome will need to have a cloud printing
 266   // dialog as backup.  It's just that on Chrome OS, it's the only
 267   // print dialog.
 268   if (url.host() == chrome::kChromeUICloudPrintResourcesHost)
 269     return &NewWebUI<ExternalWebDialogUI>;
 270   if (url.host() == chrome::kChromeUICloudPrintSetupHost)
 271     return &NewWebUI<WebDialogUI>;
 272   if (url.host() == chrome::kChromeUIComponentsHost)
 273     return &NewWebUI<ComponentsUI>;
 274   if (url.spec() == chrome::kChromeUIConstrainedHTMLTestURL)
 275     return &NewWebUI<ConstrainedWebDialogUI>;
 276   if (url.host() == chrome::kChromeUICrashesHost)
 277     return &NewWebUI<CrashesUI>;
 278 #if defined(ENABLE_SERVICE_DISCOVERY)
 279   if (url.host() == chrome::kChromeUIDevicesHost) {
 280     return &NewWebUI<LocalDiscoveryUI>;
 281   }
 282 #endif
 283   if (url.host() == chrome::kChromeUIDomainReliabilityInternalsHost)
 284     return &NewWebUI<DomainReliabilityInternalsUI>;
 285   if (url.host() == chrome::kChromeUIFlagsHost)
 286     return &NewWebUI<FlagsUI>;
 287   if (url.host() == chrome::kChromeUIHistoryFrameHost)
 288     return &NewWebUI<HistoryUI>;
 289   if (url.host() == chrome::kChromeUIInstantHost)
 290     return &NewWebUI<InstantUI>;
 291   if (url.host() == chrome::kChromeUIInterstitialHost)
 292     return &NewWebUI<InterstitialUI>;
 293   if (url.host() == chrome::kChromeUIInvalidationsHost)
 294     return &NewWebUI<InvalidationsUI>;
 295   if (url.host() == chrome::kChromeUISupervisedUserPassphrasePageHost)
 296     return &NewWebUI<ConstrainedWebDialogUI>;
 297   if (url.host() == chrome::kChromeUIMemoryInternalsHost)
 298     return &NewWebUI<MemoryInternalsUI>;
 299 #if !defined(DISABLE_NACL)
 300   if (url.host() == chrome::kChromeUINaClHost)
 301     return &NewWebUI<NaClUI>;
 302 #endif
 303 #if defined(OS_ANDROID) || defined(OS_IOS)
 304   if (url.host() == chrome::kChromeUINetExportHost)
 305     return &NewWebUI<NetExportUI>;
 306 #endif
 307   if (url.host() == chrome::kChromeUINetInternalsHost)
 308     return &NewWebUI<NetInternalsUI>;
 309 #if !defined(OS_ANDROID)
 310   if (url.host() == chrome::kChromeUINewTabHost)
 311     return &NewWebUI<NewTabUI>;
 312 #endif
 313   if (url.host() == chrome::kChromeUIOmniboxHost)
 314     return &NewWebUI<OmniboxUI>;
 315   if (url.host() == chrome::kChromeUIPasswordManagerInternalsHost)
 316     return &NewWebUI<PasswordManagerInternalsUI>;
 317   if (url.host() == chrome::kChromeUIPredictorsHost)
 318     return &NewWebUI<PredictorsUI>;
 319   if (url.host() == chrome::kChromeUIProfilerHost)
 320     return &NewWebUI<ProfilerUI>;
 321   if (url.host() == chrome::kChromeUISignInInternalsHost)
 322     return &NewWebUI<SignInInternalsUI>;
 323   if (url.host() == chrome::kChromeUISyncInternalsHost)
 324     return &NewWebUI<SyncInternalsUI>;
 325   if (url.host() == chrome::kChromeUISyncResourcesHost)
 326     return &NewWebUI<WebDialogUI>;
 327   if (url.host() == chrome::kChromeUITranslateInternalsHost)
 328     return &NewWebUI<TranslateInternalsUI>;
 329   if (url.host() == chrome::kChromeUIUserActionsHost)
 330     return &NewWebUI<UserActionsUI>;
 331   if (url.host() == chrome::kChromeUIVersionHost)
 332     return &NewWebUI<VersionUI>;
 333 #if defined(ENABLE_EXTENSIONS)
 334   if (url.host() == chrome::kChromeUIVoiceSearchHost)
 335     return &NewWebUI<VoiceSearchUI>;
 336 #endif
 337 #if defined(ENABLE_WEBRTC)
 338   if (url.host() == chrome::kChromeUIWebRtcLogsHost)
 339     return &NewWebUI<WebRtcLogsUI>;
 340 #endif
 341 #if defined(ENABLE_APP_LIST)
 342   if (url.host() == chrome::kChromeUIAppListStartPageHost)
 343     return &NewWebUI<app_list::StartPageUI>;
 344 #endif
 345
 346   /****************************************************************************
 347    * OS Specific #defines
 348    ***************************************************************************/
 349 #if defined(OS_ANDROID)
 350   if (url.host() == chrome::kChromeUIWelcomeHost)
 351     return &NewWebUI<WelcomeUI>;
 352 #else
 353   // AppLauncherPage is not needed on Android.
 354   if (url.host() == chrome::kChromeUIAppLauncherPageHost &&
 355       profile && extensions::ExtensionSystem::Get(profile)->
 356           extension_service()) {
 357     return &NewWebUI<AppLauncherPageUI>;
 358   }
 359   // Bookmarks are part of NTP on Android.
 360   if (url.host() == chrome::kChromeUIBookmarksHost)
 361     return &NewWebUI<BookmarksUI>;
 362   if (url.SchemeIs(content::kChromeDevToolsScheme))
 363     return &NewWebUI<DevToolsUI>;
 364   // Downloads list on Android uses the built-in download manager.
 365   if (url.host() == chrome::kChromeUIDownloadsHost)
 366     return &NewWebUI<DownloadsUI>;
 367   // Flash is not available on android.
 368   if (url.host() == chrome::kChromeUIFlashHost)
 369     return &NewWebUI<FlashUI>;
 370   if (url.host() == chrome::kChromeUIGCMInternalsHost)
 371     return &NewWebUI<GCMInternalsUI>;
 372   // Help is implemented with native UI elements on Android.
 373   if (url.host() == chrome::kChromeUIHelpFrameHost)
 374     return &NewWebUI<HelpUI>;
 375   // Identity API is not available on Android.
 376   if (url.host() == chrome::kChromeUIIdentityInternalsHost)
 377     return &NewWebUI<IdentityInternalsUI>;
 378   // chrome://inspect isn't supported on Android. Page debugging is handled by a
 379   // remote devtools on the host machine, and other elements (Shared Workers,
 380   // extensions, etc) aren't supported.
 381   if (url.host() == chrome::kChromeUIInspectHost)
 382     return &NewWebUI<InspectUI>;
 383   // Android does not support plugins for now.
 384   if (url.host() == chrome::kChromeUIPluginsHost)
 385     return &NewWebUI<PluginsUI>;
 386   if (url.host() == chrome::kChromeUIQuotaInternalsHost)
 387     return &NewWebUI<QuotaInternalsUI>;
 388   // Settings are implemented with native UI elements on Android.
 389   // Handle chrome://settings if settings in a window and about in settings
 390   // are enabled.
 391   if (url.host() == chrome::kChromeUISettingsFrameHost ||
 392       (url.host() == chrome::kChromeUISettingsHost &&
 393        ::switches::AboutInSettingsEnabled())) {
 394     return &NewWebUI<options::OptionsUI>;
 395   }
 396   if (url.host() == chrome::kChromeUISuggestionsInternalsHost)
 397     return &NewWebUI<SuggestionsInternalsUI>;
 398   if (url.host() == chrome::kChromeUISyncFileSystemInternalsHost)
 399     return &NewWebUI<SyncFileSystemInternalsUI>;
 400   if (url.host() == chrome::kChromeUISystemInfoHost)
 401     return &NewWebUI<SystemInfoUI>;
 402   // Uber frame is not used on Android.
 403   if (url.host() == chrome::kChromeUIUberFrameHost)
 404     return &NewWebUI<UberFrameUI>;
 405   // Uber page is not used on Android.
 406   if (url.host() == chrome::kChromeUIUberHost)
 407     return &NewWebUI<UberUI>;
 408 #endif
 409 #if defined(OS_WIN)
 410   if (url.host() == chrome::kChromeUIConflictsHost)
 411     return &NewWebUI<ConflictsUI>;
 412   if (url.host() == chrome::kChromeUIMetroFlowHost)
 413     return &NewWebUI<SetAsDefaultBrowserUI>;
 414 #endif
 415 #if (defined(USE_NSS) || defined(USE_OPENSSL)) && defined(USE_AURA)
 416   if (url.host() == chrome::kChromeUICertificateViewerHost)
 417     return &NewWebUI<CertificateViewerUI>;
 418 #if defined(OS_CHROMEOS)
 419   if (url.host() == chrome::kChromeUICertificateViewerDialogHost)
 420     return &NewWebUI<CertificateViewerModalDialogUI>;
 421 #endif
 422 #endif
 423 #if defined(OS_CHROMEOS)
 424   if (url.host() == chrome::kChromeUIBluetoothPairingHost)
 425     return &NewWebUI<chromeos::BluetoothPairingUI>;
 426   if (url.host() == chrome::kChromeUICertificateManagerHost)
 427     return &NewWebUI<chromeos::CertificateManagerDialogUI>;
 428   if (url.host() == chrome::kChromeUIChargerReplacementHost)
 429     return &NewWebUI<chromeos::ChargerReplacementUI>;
 430   if (url.host() == chrome::kChromeUIChooseMobileNetworkHost)
 431     return &NewWebUI<chromeos::ChooseMobileNetworkUI>;
 432   if (url.host() == chrome::kChromeUICryptohomeHost)
 433     return &NewWebUI<chromeos::CryptohomeUI>;
 434   if (url.host() == chrome::kChromeUIDriveInternalsHost)
 435     return &NewWebUI<chromeos::DriveInternalsUI>;
 436   if (url.host() == chrome::kChromeUIFirstRunHost)
 437     return &NewWebUI<chromeos::FirstRunUI>;
 438   if (url.host() == chrome::kChromeUIImageBurnerHost)
 439     return &NewWebUI<ImageBurnUI>;
 440   if (url.host() == chrome::kChromeUIKeyboardOverlayHost)
 441     return &NewWebUI<KeyboardOverlayUI>;
 442   if (url.host() == chrome::kChromeUIMobileSetupHost)
 443     return &NewWebUI<MobileSetupUI>;
 444   if (url.host() == chrome::kChromeUINfcDebugHost)
 445     return &NewWebUI<chromeos::NfcDebugUI>;
 446   if (url.host() == chrome::kChromeUIOobeHost)
 447     return &NewWebUI<chromeos::OobeUI>;
 448   if (url.host() == chrome::kChromeUIProvidedFileSystemsHost)
 449     return &NewWebUI<chromeos::ProvidedFileSystemsUI>;
 450   if (url.host() == chrome::kChromeUIProxySettingsHost)
 451     return &NewWebUI<chromeos::ProxySettingsUI>;
 452   if (url.host() == chrome::kChromeUISalsaHost)
 453     return &NewWebUI<SalsaUI>;
 454   if (url.host() == chrome::kChromeUISetTimeHost)
 455     return &NewWebUI<chromeos::SetTimeUI>;
 456   if (url.host() == chrome::kChromeUISimUnlockHost)
 457     return &NewWebUI<chromeos::SimUnlockUI>;
 458   if (url.host() == chrome::kChromeUISlowHost)
 459     return &NewWebUI<chromeos::SlowUI>;
 460   if (url.host() == chrome::kChromeUISlowTraceHost)
 461     return &NewWebUI<chromeos::SlowTraceController>;
 462   if (url.host() == chrome::kChromeUINetworkHost)
 463     return &NewWebUI<chromeos::NetworkUI>;
 464   if (url.host() == chrome::kChromeUIPowerHost)
 465     return &NewWebUI<chromeos::PowerUI>;
 466 #endif  // defined(OS_CHROMEOS)
 467 #if !defined(OS_ANDROID) && !defined(OS_IOS)
 468   if (url.host() == chrome::kChromeUIChromeSigninHost)
 469     return &NewWebUI<InlineLoginUI>;
 470 #endif
 471
 472   /****************************************************************************
 473    * Other #defines and special logics.
 474    ***************************************************************************/
 475 #if defined(ENABLE_CONFIGURATION_POLICY)
 476   if (url.host() == chrome::kChromeUIPolicyHost)
 477     return &NewWebUI<PolicyUI>;
 478
 479 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 480   if (url.host() == chrome::kChromeUIProfileSigninConfirmationHost)
 481     return &NewWebUI<ProfileSigninConfirmationUI>;
 482 #endif
 483
 484 #endif  // defined(ENABLE_CONFIGURATION_POLICY)
 485
 486 #if (defined(OS_LINUX) && defined(TOOLKIT_VIEWS)) || defined(USE_AURA)
 487   if (url.host() == chrome::kChromeUITabModalConfirmDialogHost) {
 488     return &NewWebUI<ConstrainedWebDialogUI>;
 489   }
 490 #endif
 491
 492 #if defined(USE_AURA)
 493   if (url.host() == chrome::kChromeUIGestureConfigHost)
 494     return &NewWebUI<GestureConfigUI>;
 495 #endif
 496
 497 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID) && !defined(OS_IOS)
 498   if (url.host() == chrome::kChromeUIUserManagerHost &&
 499       switches::IsNewAvatarMenu()) {
 500     return &NewWebUI<UserManagerUI>;
 501   }
 502 #endif
 503
 504   if (url.host() == chrome::kChromeUIChromeURLsHost ||
 505       url.host() == chrome::kChromeUICreditsHost ||
 506       url.host() == chrome::kChromeUIDNSHost ||
 507       url.host() == chrome::kChromeUIMemoryHost ||
 508       url.host() == chrome::kChromeUIMemoryRedirectHost ||
 509       url.host() == chrome::kChromeUIStatsHost ||
 510       url.host() == chrome::kChromeUITermsHost
 511 #if defined(OS_LINUX) || defined(OS_OPENBSD)
 512       || url.host() == chrome::kChromeUILinuxProxyConfigHost
 513       || url.host() == chrome::kChromeUISandboxHost
 514 #endif
 515 #if defined(OS_CHROMEOS)
 516       || url.host() == chrome::kChromeUIDiscardsHost
 517       || url.host() == chrome::kChromeUIOSCreditsHost
 518 #endif
 519 #if defined(WEBUI_TASK_MANAGER)
 520       || url.host() == chrome::kChromeUITaskManagerHost
 521 #endif
 522       ) {
 523     return &NewWebUI<AboutUI>;
 524   }
 525
 526 #if defined(ENABLE_EXTENSIONS)
 527   if (url.host() == chrome::kChromeUIExtensionsFrameHost)
 528     return &NewWebUI<extensions::ExtensionsUI>;
 529 #endif
 530 #if defined(ENABLE_FULL_PRINTING)
 531   if (url.host() == chrome::kChromeUIPrintHost)
 532     return &NewWebUI<PrintPreviewUI>;
 533 #endif
 534
 535   if (IsEnableDomDistillerSet() &&
 536       url.host() == dom_distiller::kChromeUIDomDistillerHost) {
 537     return &NewWebUI<dom_distiller::DomDistillerUi>;
 538   }
 539
 540   return NULL;
 541 }
 542
 543 void RunFaviconCallbackAsync(
 544     const favicon_base::FaviconResultsCallback& callback,
 545     const std::vector<favicon_base::FaviconRawBitmapResult>* results) {
 546   base::MessageLoopProxy::current()->PostTask(
 547       FROM_HERE,
 548       base::Bind(&FaviconService::FaviconResultsCallbackRunner,
 549                  callback, base::Owned(results)));
 550 }
 551
 552 }  // namespace
 553
 554 WebUI::TypeID ChromeWebUIControllerFactory::GetWebUIType(
 555       content::BrowserContext* browser_context, const GURL& url) const {
 556   Profile* profile = Profile::FromBrowserContext(browser_context);
 557   WebUIFactoryFunction function = GetWebUIFactoryFunction(NULL, profile, url);
 558   return function ? reinterpret_cast<WebUI::TypeID>(function) : WebUI::kNoWebUI;
 559 }
 560
 561 bool ChromeWebUIControllerFactory::UseWebUIForURL(
 562     content::BrowserContext* browser_context, const GURL& url) const {
 563   return GetWebUIType(browser_context, url) != WebUI::kNoWebUI;
 564 }
 565
 566 bool ChromeWebUIControllerFactory::UseWebUIBindingsForURL(
 567     content::BrowserContext* browser_context, const GURL& url) const {
 568   bool needs_extensions_web_ui = false;
 569 #if defined(ENABLE_EXTENSIONS)
 570   // Extensions are rendered via WebUI in tabs, but don't actually need WebUI
 571   // bindings (see the ExtensionWebUI constructor).
 572   needs_extensions_web_ui =
 573       NeedsExtensionWebUI(Profile::FromBrowserContext(browser_context), url);
 574 #endif
 575   return !needs_extensions_web_ui && UseWebUIForURL(browser_context, url);
 576 }
 577
 578 WebUIController* ChromeWebUIControllerFactory::CreateWebUIControllerForURL(
 579     WebUI* web_ui,
 580     const GURL& url) const {
 581   Profile* profile = Profile::FromWebUI(web_ui);
 582   WebUIFactoryFunction function = GetWebUIFactoryFunction(web_ui, profile, url);
 583   if (!function)
 584     return NULL;
 585
 586   return (*function)(web_ui, url);
 587 }
 588
 589 void ChromeWebUIControllerFactory::GetFaviconForURL(
 590     Profile* profile,
 591     const GURL& page_url,
 592     const std::vector<int>& desired_sizes_in_pixel,
 593     const favicon_base::FaviconResultsCallback& callback) const {
 594   // Before determining whether page_url is an extension url, we must handle
 595   // overrides. This changes urls in |kChromeUIScheme| to extension urls, and
 596   // allows to use ExtensionWebUI::GetFaviconForURL.
 597   GURL url(page_url);
 598 #if defined(ENABLE_EXTENSIONS)
 599   ExtensionWebUI::HandleChromeURLOverride(&url, profile);
 600
 601   // All extensions but the bookmark manager get their favicon from the icons
 602   // part of the manifest.
 603   if (url.SchemeIs(extensions::kExtensionScheme) &&
 604       url.host() != extension_misc::kBookmarkManagerId) {
 605     ExtensionWebUI::GetFaviconForURL(profile, url, callback);
 606     return;
 607   }
 608 #endif
 609
 610   std::vector<favicon_base::FaviconRawBitmapResult>* favicon_bitmap_results =
 611       new std::vector<favicon_base::FaviconRawBitmapResult>();
 612
 613   // Use ui::GetSupportedScaleFactors instead of
 614   // favicon_base::GetFaviconScales() because chrome favicons comes from
 615   // resources.
 616   std::vector<ui::ScaleFactor> resource_scale_factors =
 617       ui::GetSupportedScaleFactors();
 618
 619   std::vector<gfx::Size> candidate_sizes;
 620   for (size_t i = 0; i < resource_scale_factors.size(); ++i) {
 621     float scale = ui::GetScaleForScaleFactor(resource_scale_factors[i]);
 622     // Assume that GetFaviconResourceBytes() returns favicons which are
 623     // |gfx::kFaviconSize| x |gfx::kFaviconSize| DIP.
 624     int candidate_edge_size =
 625         static_cast<int>(gfx::kFaviconSize * scale + 0.5f);
 626     candidate_sizes.push_back(
 627         gfx::Size(candidate_edge_size, candidate_edge_size));
 628   }
 629   std::vector<size_t> selected_indices;
 630   SelectFaviconFrameIndices(
 631       candidate_sizes, desired_sizes_in_pixel, &selected_indices, NULL);
 632   for (size_t i = 0; i < selected_indices.size(); ++i) {
 633     size_t selected_index = selected_indices[i];
 634     ui::ScaleFactor selected_resource_scale =
 635         resource_scale_factors[selected_index];
 636
 637     scoped_refptr<base::RefCountedMemory> bitmap(
 638         GetFaviconResourceBytes(url, selected_resource_scale));
 639     if (bitmap.get() && bitmap->size()) {
 640       favicon_base::FaviconRawBitmapResult bitmap_result;
 641       bitmap_result.bitmap_data = bitmap;
 642       // Leave |bitmap_result|'s icon URL as the default of GURL().
 643       bitmap_result.icon_type = favicon_base::FAVICON;
 644       favicon_bitmap_results->push_back(bitmap_result);
 645
 646       bitmap_result.pixel_size = candidate_sizes[selected_index];
 647     }
 648   }
 649
 650   RunFaviconCallbackAsync(callback, favicon_bitmap_results);
 651 }
 652
 653 // static
 654 ChromeWebUIControllerFactory* ChromeWebUIControllerFactory::GetInstance() {
 655   return Singleton<ChromeWebUIControllerFactory>::get();
 656 }
 657
 658 ChromeWebUIControllerFactory::ChromeWebUIControllerFactory() {
 659 }
 660
 661 ChromeWebUIControllerFactory::~ChromeWebUIControllerFactory() {
 662 }
 663
 664 base::RefCountedMemory* ChromeWebUIControllerFactory::GetFaviconResourceBytes(
 665     const GURL& page_url, ui::ScaleFactor scale_factor) const {
 666 #if !defined(OS_ANDROID)  // Bookmarks are part of NTP on Android.
 667   // The bookmark manager is a chrome extension, so we have to check for it
 668   // before we check for extension scheme.
 669   if (page_url.host() == extension_misc::kBookmarkManagerId)
 670     return BookmarksUI::GetFaviconResourceBytes(scale_factor);
 671
 672   // The extension scheme is handled in GetFaviconForURL.
 673   if (page_url.SchemeIs(extensions::kExtensionScheme)) {
 674     NOTREACHED();
 675     return NULL;
 676   }
 677 #endif
 678
 679   if (!content::HasWebUIScheme(page_url))
 680     return NULL;
 681
 682   if (page_url.host() == chrome::kChromeUIComponentsHost)
 683     return ComponentsUI::GetFaviconResourceBytes(scale_factor);
 684
 685 #if defined(OS_WIN)
 686   if (page_url.host() == chrome::kChromeUIConflictsHost)
 687     return ConflictsUI::GetFaviconResourceBytes(scale_factor);
 688 #endif
 689
 690   if (page_url.host() == chrome::kChromeUICrashesHost)
 691     return CrashesUI::GetFaviconResourceBytes(scale_factor);
 692
 693   if (page_url.host() == chrome::kChromeUIFlagsHost)
 694     return FlagsUI::GetFaviconResourceBytes(scale_factor);
 695
 696   if (page_url.host() == chrome::kChromeUIHistoryHost)
 697     return HistoryUI::GetFaviconResourceBytes(scale_factor);
 698
 699 #if !defined(OS_ANDROID)
 700   // The Apps launcher page is not available on android.
 701   if (page_url.host() == chrome::kChromeUIAppLauncherPageHost)
 702     return AppLauncherPageUI::GetFaviconResourceBytes(scale_factor);
 703
 704   // Flash is not available on android.
 705   if (page_url.host() == chrome::kChromeUIFlashHost)
 706     return FlashUI::GetFaviconResourceBytes(scale_factor);
 707
 708   // Android uses the native download manager.
 709   if (page_url.host() == chrome::kChromeUIDownloadsHost)
 710     return DownloadsUI::GetFaviconResourceBytes(scale_factor);
 711
 712   // Android doesn't use the Options pages.
 713   if (page_url.host() == chrome::kChromeUISettingsHost ||
 714       page_url.host() == chrome::kChromeUISettingsFrameHost)
 715     return options::OptionsUI::GetFaviconResourceBytes(scale_factor);
 716
 717 #if defined(ENABLE_EXTENSIONS)
 718   if (page_url.host() == chrome::kChromeUIExtensionsHost ||
 719       page_url.host() == chrome::kChromeUIExtensionsFrameHost)
 720     return extensions::ExtensionsUI::GetFaviconResourceBytes(scale_factor);
 721 #endif
 722
 723   // Android doesn't use the plugins pages.
 724   if (page_url.host() == chrome::kChromeUIPluginsHost)
 725     return PluginsUI::GetFaviconResourceBytes(scale_factor);
 726
 727 #endif
 728
 729   return NULL;
 730 }