chrome/browser/ui/webui/uber/uber_ui.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/uber/uber_ui.h"
   6
   7 #include "base/stl_util.h"
   8 #include "chrome/browser/chrome_notification_types.h"
   9 #include "chrome/browser/extensions/extension_service.h"
  10 #include "chrome/browser/profiles/profile.h"
  11 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
  12 #include "chrome/browser/ui/webui/extensions/extensions_ui.h"
  13 #include "chrome/browser/ui/webui/options/options_ui.h"
  14 #include "chrome/common/chrome_switches.h"
  15 #include "chrome/common/extensions/chrome_manifest_url_handlers.h"
  16 #include "chrome/common/url_constants.h"
  17 #include "chrome/grit/chromium_strings.h"
  18 #include "chrome/grit/generated_resources.h"
  19 #include "content/public/browser/navigation_controller.h"
  20 #include "content/public/browser/navigation_entry.h"
  21 #include "content/public/browser/notification_source.h"
  22 #include "content/public/browser/web_contents.h"
  23 #include "content/public/browser/web_ui.h"
  24 #include "content/public/browser/web_ui_data_source.h"
  25 #include "extensions/browser/extension_registry.h"
  26 #include "extensions/common/extension_set.h"
  27 #include "grit/browser_resources.h"
  28
  29 using content::NavigationController;
  30 using content::NavigationEntry;
  31 using content::RenderViewHost;
  32 using content::WebContents;
  33
  34 namespace {
  35
  36 content::WebUIDataSource* CreateUberHTMLSource() {
  37   content::WebUIDataSource* source =
  38       content::WebUIDataSource::Create(chrome::kChromeUIUberHost);
  39
  40   source->SetJsonPath("strings.js");
  41   source->AddResourcePath("uber.js", IDR_UBER_JS);
  42   source->AddResourcePath("uber_utils.js", IDR_UBER_UTILS_JS);
  43   source->SetDefaultResource(IDR_UBER_HTML);
  44   source->OverrideContentSecurityPolicyFrameSrc("frame-src chrome:;");
  45
  46   // Hack alert: continue showing "Loading..." until a real title is set.
  47   source->AddLocalizedString("pageTitle", IDS_TAB_LOADING_TITLE);
  48
  49   source->AddString("extensionsFrameURL", chrome::kChromeUIExtensionsFrameURL);
  50   source->AddString("extensionsHost", chrome::kChromeUIExtensionsHost);
  51   source->AddString("helpFrameURL", chrome::kChromeUIHelpFrameURL);
  52   source->AddString("helpHost", chrome::kChromeUIHelpHost);
  53   source->AddString("historyFrameURL", chrome::kChromeUIHistoryFrameURL);
  54   source->AddString("historyHost", chrome::kChromeUIHistoryHost);
  55   source->AddString("settingsFrameURL", chrome::kChromeUISettingsFrameURL);
  56   source->AddString("settingsHost", chrome::kChromeUISettingsHost);
  57
  58   return source;
  59 }
  60
  61 // Determines whether the user has an active extension of the given type.
  62 bool HasExtensionType(Profile* profile, const std::string& extension_type) {
  63   const extensions::ExtensionSet& extension_set =
  64       extensions::ExtensionRegistry::Get(profile)->enabled_extensions();
  65   for (extensions::ExtensionSet::const_iterator iter = extension_set.begin();
  66        iter != extension_set.end(); ++iter) {
  67     const extensions::URLOverrides::URLOverrideMap& map =
  68         extensions::URLOverrides::GetChromeURLOverrides(iter->get());
  69     if (ContainsKey(map, extension_type))
  70       return true;
  71   }
  72
  73   return false;
  74 }
  75
  76 content::WebUIDataSource* CreateUberFrameHTMLSource(Profile* profile) {
  77   content::WebUIDataSource* source =
  78       content::WebUIDataSource::Create(chrome::kChromeUIUberFrameHost);
  79
  80   source->SetJsonPath("strings.js");
  81   source->AddResourcePath("uber_frame.js", IDR_UBER_FRAME_JS);
  82   source->SetDefaultResource(IDR_UBER_FRAME_HTML);
  83
  84   // TODO(jhawkins): Attempt to get rid of IDS_SHORT_PRODUCT_OS_NAME.
  85 #if defined(OS_CHROMEOS)
  86   source->AddLocalizedString("shortProductName", IDS_SHORT_PRODUCT_OS_NAME);
  87 #else
  88   source->AddLocalizedString("shortProductName", IDS_SHORT_PRODUCT_NAME);
  89 #endif  // defined(OS_CHROMEOS)
  90
  91   // Group settings and help separately if settings in a window is enabled.
  92   std::string settings_group("settings_group");
  93   std::string other_group(
  94       ::switches::SettingsWindowEnabled() ? "other_group" : "settings_group");
  95   source->AddString("extensionsHost", chrome::kChromeUIExtensionsHost);
  96   source->AddLocalizedString("extensionsDisplayName",
  97                              IDS_MANAGE_EXTENSIONS_SETTING_WINDOWS_TITLE);
  98   source->AddString("extensionsGroup", other_group);
  99   source->AddString("helpHost", chrome::kChromeUIHelpHost);
 100   source->AddLocalizedString("helpDisplayName", IDS_ABOUT_TITLE);
 101   source->AddString("helpGroup", settings_group);
 102   source->AddString("historyHost", chrome::kChromeUIHistoryHost);
 103   source->AddLocalizedString("historyDisplayName", IDS_HISTORY_TITLE);
 104   source->AddString("historyGroup", other_group);
 105   source->AddString("settingsHost", chrome::kChromeUISettingsHost);
 106   source->AddLocalizedString("settingsDisplayName", IDS_SETTINGS_TITLE);
 107   source->AddString("settingsGroup", settings_group);
 108   bool overridesHistory =
 109       HasExtensionType(profile, chrome::kChromeUIHistoryHost);
 110   source->AddString("overridesHistory", overridesHistory ? "yes" : "no");
 111   source->DisableDenyXFrameOptions();
 112   source->OverrideContentSecurityPolicyFrameSrc("frame-src chrome:;");
 113
 114   return source;
 115 }
 116
 117 }  // namespace
 118
 119 UberUI::UberUI(content::WebUI* web_ui) : WebUIController(web_ui) {
 120   Profile* profile = Profile::FromWebUI(web_ui);
 121   content::WebUIDataSource::Add(profile, CreateUberHTMLSource());
 122
 123   RegisterSubpage(chrome::kChromeUIExtensionsFrameURL,
 124                   chrome::kChromeUIExtensionsHost);
 125   RegisterSubpage(chrome::kChromeUIHelpFrameURL,
 126                   chrome::kChromeUIHelpHost);
 127   RegisterSubpage(chrome::kChromeUIHistoryFrameURL,
 128                   chrome::kChromeUIHistoryHost);
 129   RegisterSubpage(chrome::kChromeUISettingsFrameURL,
 130                   chrome::kChromeUISettingsHost);
 131   RegisterSubpage(chrome::kChromeUIUberFrameURL,
 132                   chrome::kChromeUIUberHost);
 133 }
 134
 135 UberUI::~UberUI() {
 136   STLDeleteValues(&sub_uis_);
 137 }
 138
 139 void UberUI::RegisterSubpage(const std::string& page_url,
 140                              const std::string& page_host) {
 141   GURL page_gurl(page_url);
 142   content::WebUI* webui = web_ui()->GetWebContents()->CreateWebUI(page_gurl);
 143
 144   webui->OverrideJavaScriptFrame(page_host);
 145   sub_uis_[page_url] = webui;
 146 }
 147
 148 content::WebUI* UberUI::GetSubpage(const std::string& page_url) {
 149   if (!ContainsKey(sub_uis_, page_url))
 150     return NULL;
 151   return sub_uis_[page_url];
 152 }
 153
 154 void UberUI::RenderViewCreated(RenderViewHost* render_view_host) {
 155   for (SubpageMap::iterator iter = sub_uis_.begin(); iter != sub_uis_.end();
 156        ++iter) {
 157     iter->second->GetController()->RenderViewCreated(render_view_host);
 158   }
 159 }
 160
 161 void UberUI::RenderViewReused(RenderViewHost* render_view_host) {
 162   for (SubpageMap::iterator iter = sub_uis_.begin(); iter != sub_uis_.end();
 163        ++iter) {
 164     iter->second->GetController()->RenderViewReused(render_view_host);
 165   }
 166 }
 167
 168 bool UberUI::OverrideHandleWebUIMessage(const GURL& source_url,
 169                                         const std::string& message,
 170                                         const base::ListValue& args) {
 171   // Find the appropriate subpage and forward the message.
 172   SubpageMap::iterator subpage = sub_uis_.find(source_url.GetOrigin().spec());
 173   if (subpage == sub_uis_.end()) {
 174     // The message was sent from the uber page itself.
 175     DCHECK_EQ(std::string(chrome::kChromeUIUberHost), source_url.host());
 176     return false;
 177   }
 178
 179   // The message was sent from a subpage.
 180   // TODO(jam) fix this to use interface
 181   // return subpage->second->GetController()->OverrideHandleWebUIMessage(
 182   //     source_url, message, args);
 183   subpage->second->ProcessWebUIMessage(source_url, message, args);
 184   return true;
 185 }
 186
 187 // UberFrameUI
 188
 189 UberFrameUI::UberFrameUI(content::WebUI* web_ui) : WebUIController(web_ui) {
 190   Profile* profile = Profile::FromWebUI(web_ui);
 191   content::WebUIDataSource::Add(profile, CreateUberFrameHTMLSource(profile));
 192
 193   // Register as an observer for when extensions are loaded and unloaded.
 194   registrar_.Add(this,
 195                  extensions::NOTIFICATION_EXTENSION_LOADED_DEPRECATED,
 196                  content::Source<Profile>(profile));
 197   registrar_.Add(this,
 198                  extensions::NOTIFICATION_EXTENSION_UNLOADED_DEPRECATED,
 199                  content::Source<Profile>(profile));
 200 }
 201
 202 UberFrameUI::~UberFrameUI() {
 203 }
 204
 205 void UberFrameUI::Observe(int type,
 206                           const content::NotificationSource& source,
 207                           const content::NotificationDetails& details) {
 208   switch (type) {
 209     // We listen for notifications that indicate an extension has been loaded
 210     // (i.e., has been installed and/or enabled) or unloaded (i.e., has been
 211     // uninstalled and/or disabled). If one of these events has occurred, then
 212     // we must update the behavior of the History navigation element so that
 213     // it opens the history extension if one is installed and enabled or
 214     // opens the default history page if one is uninstalled or disabled.
 215     case extensions::NOTIFICATION_EXTENSION_LOADED_DEPRECATED:
 216     case extensions::NOTIFICATION_EXTENSION_UNLOADED_DEPRECATED: {
 217       Profile* profile = Profile::FromWebUI(web_ui());
 218       bool overrides_history =
 219           HasExtensionType(profile, chrome::kChromeUIHistoryHost);
 220       web_ui()->CallJavascriptFunction(
 221           "uber_frame.setNavigationOverride",
 222           base::StringValue(chrome::kChromeUIHistoryHost),
 223           base::StringValue(overrides_history ? "yes" : "no"));
 224       break;
 225     }
 226     default:
 227       NOTREACHED();
 228   }
 229 }