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 "base/strings/utf_string_conversions.h"
   9 #include "chrome/browser/chrome_notification_types.h"
  10 #include "chrome/browser/extensions/extension_service.h"
  11 #include "chrome/browser/profiles/profile.h"
  12 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
  13 #include "chrome/browser/ui/webui/extensions/extensions_ui.h"
  14 #include "chrome/browser/ui/webui/options/options_ui.h"
  15 #include "chrome/common/extensions/manifest_url_handler.h"
  16 #include "chrome/common/url_constants.h"
  17 #include "content/public/browser/navigation_controller.h"
  18 #include "content/public/browser/navigation_entry.h"
  19 #include "content/public/browser/notification_source.h"
  20 #include "content/public/browser/web_contents.h"
  21 #include "content/public/browser/web_ui.h"
  22 #include "content/public/browser/web_ui_data_source.h"
  23 #include "extensions/common/extension_set.h"
  24 #include "grit/browser_resources.h"
  25 #include "grit/chromium_strings.h"
  26 #include "grit/generated_resources.h"
  27
  28 using base::ASCIIToUTF16;
  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->SetUseJsonJSFormatV2();
  41   source->SetJsonPath("strings.js");
  42   source->AddResourcePath("uber.js", IDR_UBER_JS);
  43   source->AddResourcePath("uber_utils.js", IDR_UBER_UTILS_JS);
  44   source->SetDefaultResource(IDR_UBER_HTML);
  45   source->OverrideContentSecurityPolicyFrameSrc("frame-src chrome:;");
  46
  47   // Hack alert: continue showing "Loading..." until a real title is set.
  48   source->AddLocalizedString("pageTitle", IDS_TAB_LOADING_TITLE);
  49
  50   source->AddString("extensionsFrameURL",
  51                     ASCIIToUTF16(chrome::kChromeUIExtensionsFrameURL));
  52   source->AddString("extensionsHost",
  53                     ASCIIToUTF16(chrome::kChromeUIExtensionsHost));
  54   source->AddString("helpFrameURL",
  55                     ASCIIToUTF16(chrome::kChromeUIHelpFrameURL));
  56   source->AddString("helpHost",
  57                     ASCIIToUTF16(chrome::kChromeUIHelpHost));
  58   source->AddString("historyFrameURL",
  59                     ASCIIToUTF16(chrome::kChromeUIHistoryFrameURL));
  60   source->AddString("historyHost",
  61                     ASCIIToUTF16(chrome::kChromeUIHistoryHost));
  62   source->AddString("settingsFrameURL",
  63                     ASCIIToUTF16(chrome::kChromeUISettingsFrameURL));
  64   source->AddString("settingsHost",
  65                     ASCIIToUTF16(chrome::kChromeUISettingsHost));
  66
  67   return source;
  68 }
  69
  70 // Determines whether the user has an active extension of the given type.
  71 bool HasExtensionType(Profile* profile, const char* extensionType) {
  72   const extensions::ExtensionSet* extensionSet =
  73       profile->GetExtensionService()->extensions();
  74
  75   for (extensions::ExtensionSet::const_iterator iter = extensionSet->begin();
  76        iter != extensionSet->end(); ++iter) {
  77     extensions::URLOverrides::URLOverrideMap map =
  78         extensions::URLOverrides::GetChromeURLOverrides(iter->get());
  79     extensions::URLOverrides::URLOverrideMap::const_iterator result =
  80         map.find(std::string(extensionType));
  81
  82     if (result != map.end())
  83       return true;
  84   }
  85
  86   return false;
  87 }
  88
  89 content::WebUIDataSource* CreateUberFrameHTMLSource(Profile* profile) {
  90   content::WebUIDataSource* source =
  91       content::WebUIDataSource::Create(chrome::kChromeUIUberFrameHost);
  92
  93   source->SetUseJsonJSFormatV2();
  94   source->SetJsonPath("strings.js");
  95   source->AddResourcePath("uber_frame.js", IDR_UBER_FRAME_JS);
  96   source->SetDefaultResource(IDR_UBER_FRAME_HTML);
  97
  98   // TODO(jhawkins): Attempt to get rid of IDS_SHORT_PRODUCT_OS_NAME.
  99 #if defined(OS_CHROMEOS)
 100   source->AddLocalizedString("shortProductName", IDS_SHORT_PRODUCT_OS_NAME);
 101 #else
 102   source->AddLocalizedString("shortProductName", IDS_SHORT_PRODUCT_NAME);
 103 #endif  // defined(OS_CHROMEOS)
 104
 105   source->AddString("extensionsHost",
 106                     ASCIIToUTF16(chrome::kChromeUIExtensionsHost));
 107   source->AddLocalizedString("extensionsDisplayName",
 108                              IDS_MANAGE_EXTENSIONS_SETTING_WINDOWS_TITLE);
 109   source->AddString("helpHost",
 110                     ASCIIToUTF16(chrome::kChromeUIHelpHost));
 111   source->AddLocalizedString("helpDisplayName", IDS_HELP_TITLE);
 112   source->AddString("historyHost",
 113                     ASCIIToUTF16(chrome::kChromeUIHistoryHost));
 114   source->AddLocalizedString("historyDisplayName", IDS_HISTORY_TITLE);
 115   source->AddString("settingsHost",
 116                     ASCIIToUTF16(chrome::kChromeUISettingsHost));
 117   source->AddLocalizedString("settingsDisplayName", IDS_SETTINGS_TITLE);
 118   bool overridesHistory = HasExtensionType(profile,
 119       chrome::kChromeUIHistoryHost);
 120   source->AddString("overridesHistory",
 121                     ASCIIToUTF16(overridesHistory ? "yes" : "no"));
 122   source->DisableDenyXFrameOptions();
 123   source->OverrideContentSecurityPolicyFrameSrc("frame-src chrome:;");
 124
 125   return source;
 126 }
 127
 128 }  // namespace
 129
 130 UberUI::UberUI(content::WebUI* web_ui) : WebUIController(web_ui) {
 131   Profile* profile = Profile::FromWebUI(web_ui);
 132   content::WebUIDataSource::Add(profile, CreateUberHTMLSource());
 133
 134   RegisterSubpage(chrome::kChromeUIExtensionsFrameURL);
 135   RegisterSubpage(chrome::kChromeUIHelpFrameURL);
 136   RegisterSubpage(chrome::kChromeUIHistoryFrameURL);
 137   RegisterSubpage(chrome::kChromeUISettingsFrameURL);
 138   RegisterSubpage(chrome::kChromeUIUberFrameURL);
 139 }
 140
 141 UberUI::~UberUI() {
 142   STLDeleteValues(&sub_uis_);
 143 }
 144
 145 void UberUI::RegisterSubpage(const std::string& page_url) {
 146   content::WebUI* webui =
 147       web_ui()->GetWebContents()->CreateWebUI(GURL(page_url));
 148
 149   webui->SetFrameXPath("//iframe[starts-with(@src,'" + page_url + "')]");
 150   sub_uis_[page_url] = webui;
 151 }
 152
 153 void UberUI::RenderViewCreated(RenderViewHost* render_view_host) {
 154   for (SubpageMap::iterator iter = sub_uis_.begin(); iter != sub_uis_.end();
 155        ++iter) {
 156     iter->second->GetController()->RenderViewCreated(render_view_host);
 157   }
 158 }
 159
 160 void UberUI::RenderViewReused(RenderViewHost* render_view_host) {
 161   for (SubpageMap::iterator iter = sub_uis_.begin(); iter != sub_uis_.end();
 162        ++iter) {
 163     iter->second->GetController()->RenderViewReused(render_view_host);
 164   }
 165 }
 166
 167 bool UberUI::OverrideHandleWebUIMessage(const GURL& source_url,
 168                                         const std::string& message,
 169                                         const base::ListValue& args) {
 170   // Find the appropriate subpage and forward the message.
 171   SubpageMap::iterator subpage = sub_uis_.find(source_url.GetOrigin().spec());
 172   if (subpage == sub_uis_.end()) {
 173     // The message was sent from the uber page itself.
 174     DCHECK_EQ(std::string(chrome::kChromeUIUberHost), source_url.host());
 175     return false;
 176   }
 177
 178   // The message was sent from a subpage.
 179   // TODO(jam) fix this to use interface
 180   // return subpage->second->GetController()->OverrideHandleWebUIMessage(
 181   //     source_url, message, args);
 182   subpage->second->ProcessWebUIMessage(source_url, message, args);
 183   return true;
 184 }
 185
 186 // UberFrameUI
 187
 188 UberFrameUI::UberFrameUI(content::WebUI* web_ui) : WebUIController(web_ui) {
 189   Profile* profile = Profile::FromWebUI(web_ui);
 190   content::WebUIDataSource::Add(profile, CreateUberFrameHTMLSource(profile));
 191
 192   // Register as an observer for when extensions are loaded and unloaded.
 193   registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_LOADED,
 194       content::Source<Profile>(profile));
 195   registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_UNLOADED,
 196       content::Source<Profile>(profile));
 197 }
 198
 199 UberFrameUI::~UberFrameUI() {
 200 }
 201
 202 void UberFrameUI::Observe(int type, const content::NotificationSource& source,
 203                           const content::NotificationDetails& details) {
 204   switch (type) {
 205     // We listen for notifications that indicate an extension has been loaded
 206     // (i.e., has been installed and/or enabled) or unloaded (i.e., has been
 207     // uninstalled and/or disabled). If one of these events has occurred, then
 208     // we must update the behavior of the History navigation element so that
 209     // it opens the history extension if one is installed and enabled or
 210     // opens the default history page if one is uninstalled or disabled.
 211     case chrome::NOTIFICATION_EXTENSION_LOADED:
 212     case chrome::NOTIFICATION_EXTENSION_UNLOADED: {
 213       Profile* profile = Profile::FromWebUI(web_ui());
 214       bool overrides_history =
 215           HasExtensionType(profile, chrome::kChromeUIHistoryHost);
 216       web_ui()->CallJavascriptFunction(
 217           "uber_frame.setNavigationOverride",
 218           base::StringValue(chrome::kChromeUIHistoryHost),
 219           base::StringValue(overrides_history ? "yes" : "no"));
 220       break;
 221     }
 222     default:
 223       NOTREACHED();
 224   }
 225 }