1 // Copyright (c) 2011 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 "base/i18n/rtl.h"
8 #include "base/metrics/histogram.h"
9 #include "base/string_piece.h"
10 #include "base/stringprintf.h"
11 #include "base/utf_string_conversions.h"
12 #include "base/values.h"
13 #include "chrome/browser/chromeos/cros/cros_library.h"
14 #include "chrome/browser/chromeos/cros/network_library.h"
15 #include "chrome/browser/extensions/extension_service.h"
16 #include "chrome/browser/profiles/profile.h"
17 #include "chrome/browser/tab_contents/tab_util.h"
18 #include "chrome/browser/ui/browser.h"
19 #include "chrome/browser/ui/browser_list.h"
20 #include "chrome/common/extensions/extension.h"
21 #include "chrome/common/jstemplate_builder.h"
22 #include "chrome/common/url_constants.h"
23 #include "content/browser/browser_thread.h"
24 #include "content/browser/tab_contents/navigation_controller.h"
25 #include "content/browser/tab_contents/navigation_entry.h"
26 #include "content/browser/tab_contents/tab_contents.h"
27 #include "content/common/notification_service.h"
28 #include "content/common/notification_type.h"
29 #include "grit/browser_resources.h"
30 #include "grit/generated_resources.h"
31 #include "ui/base/l10n/l10n_util.h"
32 #include "ui/base/resource/resource_bundle.h"
33
34 namespace {
35
36 // Maximum time to show a blank page.
37 const int kMaxBlankPeriod = 3000;
38
39 // A utility function to set the dictionary's value given by |resource_id|.
SetString(DictionaryValue * strings,const char * name,int resource_id)40 void SetString(DictionaryValue* strings, const char* name, int resource_id) {
41 strings->SetString(name, l10n_util::GetStringUTF16(resource_id));
42 }
43
44 } // namespace
45
46 namespace chromeos {
47
48 // static
Show(int process_host_id,int render_view_id,const GURL & url,Delegate * delegate)49 void OfflineLoadPage::Show(int process_host_id, int render_view_id,
50 const GURL& url, Delegate* delegate) {
51 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
52 if (NetworkStateNotifier::is_connected()) {
53 // Check again in UI thread and proceed if it's connected.
54 delegate->OnBlockingPageComplete(true);
55 } else {
56 TabContents* tab_contents =
57 tab_util::GetTabContentsByID(process_host_id, render_view_id);
58 // There is a chance that the tab is closed after we decided to show
59 // offline and before we actually show the offline page.
60 if (!tab_contents)
61 return;
62 (new OfflineLoadPage(tab_contents, url, delegate))->Show();
63 }
64 }
65
OfflineLoadPage(TabContents * tab_contents,const GURL & url,Delegate * delegate)66 OfflineLoadPage::OfflineLoadPage(TabContents* tab_contents,
67 const GURL& url,
68 Delegate* delegate)
69 : InterstitialPage(tab_contents, true, url),
70 delegate_(delegate),
71 proceeded_(false),
72 ALLOW_THIS_IN_INITIALIZER_LIST(method_factory_(this)),
73 in_test_(false) {
74 registrar_.Add(this, NotificationType::NETWORK_STATE_CHANGED,
75 NotificationService::AllSources());
76 }
77
GetHTMLContents()78 std::string OfflineLoadPage::GetHTMLContents() {
79 DictionaryValue strings;
80 int64 time_to_wait = std::max(
81 static_cast<int64>(0),
82 kMaxBlankPeriod -
83 NetworkStateNotifier::GetOfflineDuration().InMilliseconds());
84 // Set the timeout to show the page.
85 strings.SetInteger("time_to_wait", static_cast<int>(time_to_wait));
86 // Button labels
87 SetString(&strings, "heading", IDS_OFFLINE_LOAD_HEADLINE);
88 SetString(&strings, "try_loading", IDS_OFFLINE_TRY_LOADING);
89 SetString(&strings, "network_settings", IDS_OFFLINE_NETWORK_SETTINGS);
90
91 // Activation
92 strings.SetBoolean("show_activation", ShowActivationMessage());
93
94 bool rtl = base::i18n::IsRTL();
95 strings.SetString("textdirection", rtl ? "rtl" : "ltr");
96
97 string16 failed_url(ASCIIToUTF16(url().spec()));
98 if (rtl)
99 base::i18n::WrapStringWithLTRFormatting(&failed_url);
100 strings.SetString("url", failed_url);
101
102 // The offline page for app has icons and slightly different message.
103 Profile* profile = tab()->profile();
104 DCHECK(profile);
105 const Extension* extension = NULL;
106 ExtensionService* extensions_service = profile->GetExtensionService();
107 // Extension service does not exist in test.
108 if (extensions_service)
109 extension = extensions_service->GetExtensionByWebExtent(url());
110
111 if (extension)
112 GetAppOfflineStrings(extension, failed_url, &strings);
113 else
114 GetNormalOfflineStrings(failed_url, &strings);
115
116 base::StringPiece html(
117 ResourceBundle::GetSharedInstance().GetRawDataResource(
118 IDR_OFFLINE_LOAD_HTML));
119 return jstemplate_builder::GetI18nTemplateHtml(html, &strings);
120 }
121
GetAppOfflineStrings(const Extension * app,const string16 & failed_url,DictionaryValue * strings) const122 void OfflineLoadPage::GetAppOfflineStrings(
123 const Extension* app,
124 const string16& failed_url,
125 DictionaryValue* strings) const {
126 strings->SetString("title", app->name());
127
128 GURL icon_url = app->GetIconURL(Extension::EXTENSION_ICON_LARGE,
129 ExtensionIconSet::MATCH_EXACTLY);
130 if (icon_url.is_empty()) {
131 strings->SetString("display_icon", "none");
132 strings->SetString("icon", string16());
133 } else {
134 // Default icon is not accessible from interstitial page.
135 // TODO(oshima): Figure out how to use default icon.
136 strings->SetString("display_icon", "block");
137 strings->SetString("icon", icon_url.spec());
138 }
139
140 strings->SetString(
141 "msg",
142 l10n_util::GetStringFUTF16(IDS_APP_OFFLINE_LOAD_DESCRIPTION,
143 failed_url));
144 }
145
GetNormalOfflineStrings(const string16 & failed_url,DictionaryValue * strings) const146 void OfflineLoadPage::GetNormalOfflineStrings(
147 const string16& failed_url, DictionaryValue* strings) const {
148 strings->SetString("title", tab()->GetTitle());
149
150 // No icon for normal web site.
151 strings->SetString("display_icon", "none");
152 strings->SetString("icon", string16());
153
154 strings->SetString(
155 "msg",
156 l10n_util::GetStringFUTF16(IDS_SITE_OFFLINE_LOAD_DESCRIPTION,
157 failed_url));
158 }
159
CommandReceived(const std::string & cmd)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 == "proceed") {
168 Proceed();
169 } else if (command == "dontproceed") {
170 DontProceed();
171 } else if (command == "open_network_settings") {
172 Browser* browser = BrowserList::GetLastActive();
173 DCHECK(browser);
174 browser->ShowOptionsTab(chrome::kInternetOptionsSubPage);
175 } else if (command == "open_activate_broadband") {
176 Browser* browser = BrowserList::GetLastActive();
177 DCHECK(browser);
178 browser->OpenMobilePlanTabAndActivate();
179 } else {
180 LOG(WARNING) << "Unknown command:" << cmd;
181 }
182 }
183
Proceed()184 void OfflineLoadPage::Proceed() {
185 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
186 proceeded_ = true;
187 delegate_->OnBlockingPageComplete(true);
188 InterstitialPage::Proceed();
189 }
190
DontProceed()191 void OfflineLoadPage::DontProceed() {
192 // Inogre if it's already proceeded.
193 if (proceeded_)
194 return;
195 delegate_->OnBlockingPageComplete(false);
196 InterstitialPage::DontProceed();
197 }
198
Observe(NotificationType type,const NotificationSource & source,const NotificationDetails & details)199 void OfflineLoadPage::Observe(NotificationType type,
200 const NotificationSource& source,
201 const NotificationDetails& details) {
202 if (type.value == NotificationType::NETWORK_STATE_CHANGED) {
203 chromeos::NetworkStateDetails* state_details =
204 Details<chromeos::NetworkStateDetails>(details).ptr();
205 DVLOG(1) << "NetworkStateChanaged notification received: state="
206 << state_details->state();
207 if (state_details->state() ==
208 chromeos::NetworkStateDetails::CONNECTED) {
209 registrar_.Remove(this, NotificationType::NETWORK_STATE_CHANGED,
210 NotificationService::AllSources());
211 Proceed();
212 }
213 } else {
214 InterstitialPage::Observe(type, source, details);
215 }
216 }
217
ShowActivationMessage()218 bool OfflineLoadPage::ShowActivationMessage() {
219 CrosLibrary* cros = CrosLibrary::Get();
220 if (!cros || !cros->GetNetworkLibrary()->cellular_available())
221 return false;
222
223 const CellularNetworkVector& cell_networks =
224 cros->GetNetworkLibrary()->cellular_networks();
225 for (size_t i = 0; i < cell_networks.size(); ++i) {
226 chromeos::ActivationState activation_state =
227 cell_networks[i]->activation_state();
228 if (activation_state == ACTIVATION_STATE_ACTIVATED)
229 return false;
230 }
231 return true;
232 }
233
234 } // namespace chromeos
235