Revert 79691 - Move WebUIFactory to chrome/browser.

chrome/browser/ui/webui/chrome_web_ui_factory.cc

-// Copyright (c) 2011 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 "chrome/browser/ui/webui/chrome_web_ui_factory.h"
-
-#include "base/command_line.h"
-#include "chrome/browser/about_flags.h"
-#include "chrome/browser/extensions/extension_service.h"
-#include "chrome/browser/extensions/extension_web_ui.h"
-#include "chrome/browser/extensions/extensions_ui.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/ui/webui/bookmarks_ui.h"
-#include "chrome/browser/ui/webui/bug_report_ui.h"
-#include "chrome/browser/ui/webui/constrained_html_ui.h"
-#include "chrome/browser/ui/webui/crashes_ui.h"
-#include "chrome/browser/ui/webui/devtools_ui.h"
-#include "chrome/browser/ui/webui/downloads_ui.h"
-#include "chrome/browser/ui/webui/flags_ui.h"
-#include "chrome/browser/ui/webui/gpu_internals_ui.h"
-#include "chrome/browser/ui/webui/history2_ui.h"
-#include "chrome/browser/ui/webui/history_ui.h"
-#include "chrome/browser/ui/webui/html_dialog_ui.h"
-#include "chrome/browser/ui/webui/net_internals_ui.h"
-#include "chrome/browser/ui/webui/new_tab_ui.h"
-#include "chrome/browser/ui/webui/options/options_ui.h"
-#include "chrome/browser/ui/webui/plugins_ui.h"
-#include "chrome/browser/ui/webui/print_preview_ui.h"
-#include "chrome/browser/ui/webui/remoting_ui.h"
-#include "chrome/browser/ui/webui/slideshow_ui.h"
-#include "chrome/browser/ui/webui/sync_internals_ui.h"
-#include "chrome/browser/ui/webui/textfields_ui.h"
-#include "chrome/common/chrome_switches.h"
-#include "chrome/common/extensions/extension_constants.h"
-#include "chrome/common/url_constants.h"
-#include "content/browser/tab_contents/tab_contents.h"
-#include "content/browser/webui/web_ui.h"
-#include "googleurl/src/gurl.h"
-
-#if defined(OS_CHROMEOS)
-#include "chrome/browser/ui/webui/chromeos/imageburner_ui.h"
-#include "chrome/browser/ui/webui/chromeos/keyboard_overlay_ui.h"
-#include "chrome/browser/ui/webui/chromeos/mobile_setup_ui.h"
-#include "chrome/browser/ui/webui/chromeos/proxy_settings_ui.h"
-#include "chrome/browser/ui/webui/chromeos/register_page_ui.h"
-#include "chrome/browser/ui/webui/chromeos/sim_unlock_ui.h"
-#include "chrome/browser/ui/webui/chromeos/system_info_ui.h"
-#include "chrome/browser/ui/webui/filebrowse_ui.h"
-#include "chrome/browser/ui/webui/mediaplayer_ui.h"
-#endif
-
-#if defined(TOUCH_UI)
-#include "chrome/browser/ui/webui/keyboard_ui.h"
-#endif
-
-#if defined(TOUCH_UI) && defined(OS_CHROMEOS)
-#include "chrome/browser/ui/webui/chromeos/login/login_container_ui.h"
-#include "chrome/browser/ui/webui/chromeos/login/login_ui.h"
-#endif
-
-#if defined(OS_WIN)
-#include "chrome/browser/ui/webui/conflicts_ui.h"
-#endif
-
-namespace {
-
-// A function for creating a new WebUI. The caller owns the return value, which
-// may be NULL (for example, if the URL refers to an non-existent extension).
-typedef WebUI* (*WebUIFactoryFunction)(TabContents* tab_contents,
-                                       const GURL& url);
-
-// Template for defining WebUIFactoryFunction.
-template<class T>
-WebUI* NewWebUI(TabContents* contents, const GURL& url) {
-  return new T(contents);
-}
-
-// Special case for extensions.
-template<>
-WebUI* NewWebUI<ExtensionWebUI>(TabContents* contents, const GURL& url) {
-  // Don't use a WebUI for incognito tabs because we require extensions to run
-  // within a single process.
-  ExtensionService* service = contents->profile()->GetExtensionService();
-  if (service &&
-      service->ExtensionBindingsAllowed(url)) {
-    return new ExtensionWebUI(contents, url);
-  }
-  return NULL;
-}
-
-// Returns a function that can be used to create the right type of WebUI for a
-// tab, based on its URL. Returns NULL if the URL doesn't have WebUI associated
-// with it. Even if the factory function is valid, it may yield a NULL WebUI
-// when invoked for a particular tab - see NewWebUI<ExtensionWebUI>.
-static WebUIFactoryFunction GetWebUIFactoryFunction(Profile* profile,
-                                                    const GURL& url) {
-  if (url.host() == chrome::kChromeUIDialogHost)
-    return &NewWebUI<ConstrainedHtmlUI>;
-
-  ExtensionService* service = profile ? profile->GetExtensionService() : NULL;
-  if (service && service->ExtensionBindingsAllowed(url))
-    return &NewWebUI<ExtensionWebUI>;
-
-  // All platform builds of Chrome will need to have a cloud printing
-  // dialog as backup.  It's just that on Chrome OS, it's the only
-  // print dialog.
-  if (url.host() == chrome::kCloudPrintResourcesHost)
-    return &NewWebUI<ExternalHtmlDialogUI>;
-
-  // This will get called a lot to check all URLs, so do a quick check of other
-  // schemes to filter out most URLs.
-  if (!url.SchemeIs(chrome::kChromeDevToolsScheme) &&
-      !url.SchemeIs(chrome::kChromeInternalScheme) &&
-      !url.SchemeIs(chrome::kChromeUIScheme))
-    return NULL;
-
-  if (url.host() == chrome::kChromeUISyncResourcesHost ||
-      url.host() == chrome::kChromeUIRemotingResourcesHost ||
-      url.host() == chrome::kCloudPrintSetupHost)
-    return &NewWebUI<HtmlDialogUI>;
-
-  // Special case the new tab page. In older versions of Chrome, the new tab
-  // page was hosted at chrome-internal:<blah>. This might be in people's saved
-  // sessions or bookmarks, so we say any URL with that scheme triggers the new
-  // tab page.
-  if (url.host() == chrome::kChromeUINewTabHost ||
-      url.SchemeIs(chrome::kChromeInternalScheme))
-    return &NewWebUI<NewTabUI>;
-
-  // Give about:about a generic Web UI so it can navigate to pages with Web UIs.
-  if (url.spec() == chrome::kChromeUIAboutAboutURL)
-    return &NewWebUI<WebUI>;
-
-  // We must compare hosts only since some of the Web UIs append extra stuff
-  // after the host name.
-  if (url.host() == chrome::kChromeUIBookmarksHost)
-    return &NewWebUI<BookmarksUI>;
-  if (url.host() == chrome::kChromeUIBugReportHost)
-    return &NewWebUI<BugReportUI>;
-  if (url.host() == chrome::kChromeUICrashesHost)
-    return &NewWebUI<CrashesUI>;
-  if (url.host() == chrome::kChromeUIDevToolsHost)
-    return &NewWebUI<DevToolsUI>;
-#if defined(OS_WIN)
-  if (url.host() == chrome::kChromeUIConflictsHost)
-    return &NewWebUI<ConflictsUI>;
-#endif
-  if (url.host() == chrome::kChromeUIDownloadsHost)
-    return &NewWebUI<DownloadsUI>;
-  if (url.host() == chrome::kChromeUITextfieldsHost)
-    return &NewWebUI<TextfieldsUI>;
-  if (url.host() == chrome::kChromeUIExtensionsHost)
-    return &NewWebUI<ExtensionsUI>;
-  if (url.host() == chrome::kChromeUIHistoryHost)
-    return &NewWebUI<HistoryUI>;
-  if (url.host() == chrome::kChromeUIHistory2Host)
-    return &NewWebUI<HistoryUI2>;
-  if (url.host() == chrome::kChromeUIFlagsHost)
-    return &NewWebUI<FlagsUI>;
-#if defined(TOUCH_UI)
-  if (url.host() == chrome::kChromeUIKeyboardHost)
-    return &NewWebUI<KeyboardUI>;
-#endif
-  if (url.host() == chrome::kChromeUIGpuInternalsHost)
-    return &NewWebUI<GpuInternalsUI>;
-  if (url.host() == chrome::kChromeUINetInternalsHost)
-    return &NewWebUI<NetInternalsUI>;
-  if (url.host() == chrome::kChromeUIPluginsHost)
-    return &NewWebUI<PluginsUI>;
-  if (url.host() == chrome::kChromeUISyncInternalsHost)
-    return &NewWebUI<SyncInternalsUI>;
-#if defined(ENABLE_REMOTING)
-  if (url.host() == chrome::kChromeUIRemotingHost) {
-    if (CommandLine::ForCurrentProcess()->HasSwitch(
-        switches::kEnableRemoting)) {
-      return &NewWebUI<RemotingUI>;
-    }
-  }
-#endif
-
-#if defined(OS_CHROMEOS)
-  if (url.host() == chrome::kChromeUICollectedCookiesHost ||
-      url.host() == chrome::kChromeUIHttpAuthHost) {
-    return &NewWebUI<ConstrainedHtmlUI>;
-  }
-  if (url.host() == chrome::kChromeUIFileBrowseHost)
-    return &NewWebUI<FileBrowseUI>;
-  if (url.host() == chrome::kChromeUIImageBurnerHost)
-    return &NewWebUI<ImageBurnUI>;
-  if (url.host() == chrome::kChromeUIKeyboardOverlayHost)
-    return &NewWebUI<KeyboardOverlayUI>;
-  if (url.host() == chrome::kChromeUIMediaplayerHost)
-    return &NewWebUI<MediaplayerUI>;
-  if (url.host() == chrome::kChromeUIMobileSetupHost)
-    return &NewWebUI<MobileSetupUI>;
-  if (url.host() == chrome::kChromeUIProxySettingsHost)
-    return &NewWebUI<chromeos::ProxySettingsUI>;
-  if (url.host() == chrome::kChromeUIRegisterPageHost)
-    return &NewWebUI<RegisterPageUI>;
-  if (url.host() == chrome::kChromeUISettingsHost)
-    return &NewWebUI<OptionsUI>;
-  if (url.host() == chrome::kChromeUISlideshowHost)
-    return &NewWebUI<SlideshowUI>;
-  if (url.host() == chrome::kChromeUISimUnlockHost)
-    return &NewWebUI<chromeos::SimUnlockUI>;
-  if (url.host() == chrome::kChromeUISystemInfoHost)
-    return &NewWebUI<SystemInfoUI>;
-#else
-  if (url.host() == chrome::kChromeUISettingsHost)
-    return &NewWebUI<OptionsUI>;
-  if (url.host() == chrome::kChromeUIPrintHost) {
-    if (CommandLine::ForCurrentProcess()->HasSwitch(
-        switches::kEnablePrintPreview)) {
-      return &NewWebUI<PrintPreviewUI>;
-    }
-  }
-#endif  // defined(OS_CHROMEOS)
-
-#if defined(TOUCH_UI) && defined(OS_CHROMEOS)
-  if (url.host() == chrome::kChromeUILoginHost)
-    return &NewWebUI<chromeos::LoginUI>;
-  if (url.host() == chrome::kChromeUILoginContainerHost)
-    return &NewWebUI<chromeos::LoginContainerUI>;
-#endif
-
-  if (url.spec() == chrome::kChromeUIConstrainedHTMLTestURL)
-    return &NewWebUI<ConstrainedHtmlUI>;
-
-  return NULL;
-}
-
-}  // namespace
-
-WebUI::TypeID ChromeWebUIFactory::GetWebUIType(Profile* profile,
-                                               const GURL& url) const {
-  WebUIFactoryFunction function = GetWebUIFactoryFunction(profile, url);
-  return function ? reinterpret_cast<WebUI::TypeID>(function) : WebUI::kNoWebUI;
-}
-
-bool ChromeWebUIFactory::UseWebUIForURL(Profile* profile,
-                                        const GURL& url) const {
-  return GetWebUIType(profile, url) != WebUI::kNoWebUI;
-}
-
-bool ChromeWebUIFactory::HasWebUIScheme(const GURL& url) const {
-  return url.SchemeIs(chrome::kChromeDevToolsScheme) ||
-         url.SchemeIs(chrome::kChromeInternalScheme) ||
-         url.SchemeIs(chrome::kChromeUIScheme) ||
-         url.SchemeIs(chrome::kExtensionScheme);
-}
-
-bool ChromeWebUIFactory::IsURLAcceptableForWebUI(Profile* profile,
-                                           const GURL& url) const {
-  return UseWebUIForURL(profile, url) ||
-      // javacsript: URLs are allowed to run in Web UI pages
-      url.SchemeIs(chrome::kJavaScriptScheme) ||
-      // It's possible to load about:blank in a Web UI renderer.
-      // See http://crbug.com/42547
-      url.spec() == chrome::kAboutBlankURL ||
-      // about:crash, about:kill, about:hang, and about:shorthang are allowed.
-      url.spec() == chrome::kAboutCrashURL ||
-      url.spec() == chrome::kAboutKillURL ||
-      url.spec() == chrome::kAboutHangURL ||
-      url.spec() == chrome::kAboutShorthangURL;
-}
-
-WebUI* ChromeWebUIFactory::CreateWebUIForURL(TabContents* tab_contents,
-                                       const GURL& url) const {
-  WebUIFactoryFunction function = GetWebUIFactoryFunction(
-      tab_contents->profile(), url);
-  if (!function)
-    return NULL;
-  return (*function)(tab_contents, url);
-}
-
-void ChromeWebUIFactory::GetFaviconForURL(Profile* profile,
-                                    FaviconService::GetFaviconRequest* request,
-                                    const GURL& page_url) const {
-  // All extensions but the bookmark manager get their favicon from the icons
-  // part of the manifest.
-  if (page_url.SchemeIs(chrome::kExtensionScheme) &&
-      page_url.host() != extension_misc::kBookmarkManagerId) {
-    ExtensionWebUI::GetFaviconForURL(profile, request, page_url);
-  } else {
-    history::FaviconData favicon;
-    favicon.image_data = scoped_refptr<RefCountedMemory>(
-        GetFaviconResourceBytes(profile, page_url));
-    favicon.known_icon = favicon.image_data.get() != NULL &&
-                             favicon.image_data->size() > 0;
-    request->ForwardResultAsync(
-        FaviconService::FaviconDataCallback::TupleType(request->handle(),
-                                                       favicon));
-  }
-}
-
-// static
-ChromeWebUIFactory* ChromeWebUIFactory::GetInstance() {
-  return Singleton<ChromeWebUIFactory>::get();
-}
-
-ChromeWebUIFactory::ChromeWebUIFactory() {
-}
-
-ChromeWebUIFactory::~ChromeWebUIFactory() {
-}
-
-RefCountedMemory* ChromeWebUIFactory::GetFaviconResourceBytes(
-    Profile* profile,
-    const GURL& page_url) const  {
-  // The bookmark manager is a chrome extension, so we have to check for it
-  // before we check for extension scheme.
-  if (page_url.host() == extension_misc::kBookmarkManagerId)
-    return BookmarksUI::GetFaviconResourceBytes();
-
-  // The extension scheme is handled in GetFaviconForURL.
-  if (page_url.SchemeIs(chrome::kExtensionScheme)) {
-    NOTREACHED();
-    return NULL;
-  }
-
-  if (!HasWebUIScheme(page_url))
-    return NULL;
-
-#if defined(OS_WIN)
-  if (page_url.host() == chrome::kChromeUIConflictsHost)
-    return ConflictsUI::GetFaviconResourceBytes();
-#endif
-
-  if (page_url.host() == chrome::kChromeUICrashesHost)
-    return CrashesUI::GetFaviconResourceBytes();
-
-  if (page_url.host() == chrome::kChromeUIDownloadsHost)
-    return DownloadsUI::GetFaviconResourceBytes();
-
-  if (page_url.host() == chrome::kChromeUIExtensionsHost)
-    return ExtensionsUI::GetFaviconResourceBytes();
-
-  if (page_url.host() == chrome::kChromeUIHistoryHost)
-    return HistoryUI::GetFaviconResourceBytes();
-
-  if (page_url.host() == chrome::kChromeUIHistory2Host)
-    return HistoryUI2::GetFaviconResourceBytes();
-
-  if (page_url.host() == chrome::kChromeUIFlagsHost)
-    return FlagsUI::GetFaviconResourceBytes();
-
-  if (page_url.host() == chrome::kChromeUISettingsHost)
-    return OptionsUI::GetFaviconResourceBytes();
-
-  if (page_url.host() == chrome::kChromeUIPluginsHost)
-    return PluginsUI::GetFaviconResourceBytes();
-
-#if defined(ENABLE_REMOTING)
-  if (page_url.host() == chrome::kChromeUIRemotingHost)
-    return RemotingUI::GetFaviconResourceBytes();
-#endif
-
-  return NULL;
-}