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/chromeos/offline/offline_load_page.h" 6 7 #include "ash/shell.h" 8 #include "ash/shell_delegate.h" 9 #include "ash/system/tray/system_tray_delegate.h" 10 #include "base/i18n/rtl.h" 11 #include "base/metrics/histogram.h" 12 #include "base/strings/string_piece.h" 13 #include "base/strings/stringprintf.h" 14 #include "base/strings/utf_string_conversions.h" 15 #include "base/values.h" 16 #include "chrome/browser/chrome_notification_types.h" 17 #include "chrome/browser/extensions/extension_service.h" 18 #include "chrome/browser/extensions/extension_system.h" 19 #include "chrome/browser/profiles/profile.h" 20 #include "chrome/browser/renderer_preferences_util.h" 21 #include "chrome/browser/tab_contents/tab_util.h" 22 #include "chrome/common/extensions/extension.h" 23 #include "chrome/common/extensions/extension_constants.h" 24 #include "chrome/common/extensions/extension_icon_set.h" 25 #include "chrome/common/extensions/manifest_handlers/icons_handler.h" 26 #include "chrome/common/url_constants.h" 27 #include "content/public/browser/browser_thread.h" 28 #include "content/public/browser/interstitial_page.h" 29 #include "content/public/browser/notification_types.h" 30 #include "content/public/browser/web_contents.h" 31 #include "grit/browser_resources.h" 32 #include "grit/chromium_strings.h" 33 #include "grit/generated_resources.h" 34 #include "grit/google_chrome_strings.h" 35 #include "grit/theme_resources.h" 36 #include "net/base/escape.h" 37 #include "ui/base/l10n/l10n_util.h" 38 #include "ui/base/resource/resource_bundle.h" 39 #include "ui/webui/jstemplate_builder.h" 40 #include "ui/webui/web_ui_util.h" 41 42 using content::BrowserThread; 43 using content::InterstitialPage; 44 using content::WebContents; 45 46 namespace { 47 48 // Maximum time to show a blank page. 49 const int kMaxBlankPeriod = 3000; 50 51 // A utility function to set the dictionary's value given by |resource_id|. 52 void SetString(DictionaryValue* strings, const char* name, int resource_id) { 53 strings->SetString(name, l10n_util::GetStringUTF16(resource_id)); 54 } 55 56 } // namespace 57 58 namespace chromeos { 59 60 OfflineLoadPage::OfflineLoadPage(WebContents* web_contents, 61 const GURL& url, 62 const CompletionCallback& callback) 63 : callback_(callback), 64 proceeded_(false), 65 web_contents_(web_contents), 66 url_(url) { 67 net::NetworkChangeNotifier::AddConnectionTypeObserver(this); 68 interstitial_page_ = InterstitialPage::Create(web_contents, true, url, this); 69 } 70 71 OfflineLoadPage::~OfflineLoadPage() { 72 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); 73 net::NetworkChangeNotifier::RemoveConnectionTypeObserver(this); 74 } 75 76 void OfflineLoadPage::Show() { 77 interstitial_page_->Show(); 78 } 79 80 std::string OfflineLoadPage::GetHTMLContents() { 81 DictionaryValue strings; 82 int64 time_to_wait = kMaxBlankPeriod; 83 // Set the timeout to show the page. 84 strings.SetInteger("time_to_wait", static_cast<int>(time_to_wait)); 85 86 // Button labels 87 SetString(&strings, "msg", IDS_OFFLINE_LOAD_DESCRIPTION); 88 SetString(&strings, "network_settings", IDS_OFFLINE_NETWORK_SETTINGS); 89 SetString(&strings, "product_name", IDS_SHORT_PRODUCT_NAME_LOWER); 90 91 // Get the Chromium/Chrome icon, we can't access the icon via chrome://theme 92 // on the webpage since the interstitial page isn't a webui and doesn't have 93 // access to chrome:// URL's. 94 strings.SetString("icon", 95 webui::GetBitmapDataUrlFromResource(IDR_PRODUCT_LOGO_32)); 96 97 webui::SetFontAndTextDirection(&strings); 98 string16 failed_url(ASCIIToUTF16(url_.spec())); 99 if (base::i18n::IsRTL()) 100 base::i18n::WrapStringWithLTRFormatting(&failed_url); 101 strings.SetString("url", failed_url); 102 103 // The offline page for app has icons and slightly different message. 104 Profile* profile = Profile::FromBrowserContext( 105 web_contents_->GetBrowserContext()); 106 DCHECK(profile); 107 const extensions::Extension* extension = NULL; 108 ExtensionService* extensions_service = 109 extensions::ExtensionSystem::Get(profile)->extension_service(); 110 // Extension service does not exist in test. 111 if (extensions_service) 112 extension = extensions_service->extensions()->GetHostedAppByURL(url_); 113 114 if (extension) 115 GetAppOfflineStrings(extension, &strings); 116 else 117 GetNormalOfflineStrings(&strings); 118 119 base::StringPiece html( 120 ResourceBundle::GetSharedInstance().GetRawDataResource( 121 IDR_OFFLINE_LOAD_HTML)); 122 return webui::GetI18nTemplateHtml(html, &strings); 123 } 124 125 void OfflineLoadPage::OverrideRendererPrefs( 126 content::RendererPreferences* prefs) { 127 Profile* profile = Profile::FromBrowserContext( 128 web_contents_->GetBrowserContext()); 129 renderer_preferences_util::UpdateFromSystemSettings(prefs, profile); 130 } 131 132 void OfflineLoadPage::OnProceed() { 133 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); 134 proceeded_ = true; 135 NotifyBlockingPageComplete(true); 136 } 137 138 void OfflineLoadPage::OnDontProceed() { 139 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); 140 // Ignore if it's already proceeded. 141 if (proceeded_) 142 return; 143 NotifyBlockingPageComplete(false); 144 } 145 146 void OfflineLoadPage::GetAppOfflineStrings( 147 const extensions::Extension* app, 148 DictionaryValue* strings) const { 149 strings->SetString("title", app->name()); 150 strings->SetString( 151 "heading", l10n_util::GetStringUTF16(IDS_APP_OFFLINE_LOAD_HEADLINE)); 152 } 153 154 void OfflineLoadPage::GetNormalOfflineStrings(DictionaryValue* strings) const { 155 strings->SetString("title", web_contents_->GetTitle()); 156 strings->SetString( 157 "heading", l10n_util::GetStringUTF16(IDS_SITE_OFFLINE_LOAD_HEADLINE)); 158 } 159 160 void OfflineLoadPage::CommandReceived(const std::string& cmd) { 161 std::string command(cmd); 162 // The Jasonified response has quotes, remove them. 163 if (command.length() > 1 && command[0] == '"') { 164 command = command.substr(1, command.length() - 2); 165 } 166 // TODO(oshima): record action for metrics. 167 if (command == "open_network_settings") { 168 ash::Shell::GetInstance()->system_tray_delegate()->ShowNetworkSettings(""); 169 } else { 170 LOG(WARNING) << "Unknown command:" << cmd; 171 } 172 } 173 174 void OfflineLoadPage::NotifyBlockingPageComplete(bool proceed) { 175 BrowserThread::PostTask( 176 BrowserThread::IO, FROM_HERE, base::Bind(callback_, proceed)); 177 } 178 179 void OfflineLoadPage::OnConnectionTypeChanged( 180 net::NetworkChangeNotifier::ConnectionType type) { 181 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); 182 const bool online = type != net::NetworkChangeNotifier::CONNECTION_NONE; 183 DVLOG(1) << "ConnectionTypeObserver notification received: state=" 184 << (online ? "online" : "offline"); 185 if (online) { 186 net::NetworkChangeNotifier::RemoveConnectionTypeObserver(this); 187 interstitial_page_->Proceed(); 188 } 189 } 190 191 } // namespace chromeos 192
