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// Copyright (c) 2012 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/chromeos/offline/offline_load_page.h"
#include "ash/shell.h"
#include "ash/shell_delegate.h"
#include "base/i18n/rtl.h"
#include "base/metrics/histogram.h"
#include "base/string_piece.h"
#include "base/stringprintf.h"
#include "base/utf_string_conversions.h"
#include "base/values.h"
#include "chrome/browser/chromeos/cros/cros_library.h"
#include "chrome/browser/chromeos/cros/network_library.h"
#include "chrome/browser/extensions/extension_service.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/renderer_preferences_util.h"
#include "chrome/browser/tab_contents/tab_util.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_list.h"
#include "chrome/common/chrome_notification_types.h"
#include "chrome/common/extensions/extension.h"
#include "chrome/common/extensions/extension_icon_set.h"
#include "chrome/common/jstemplate_builder.h"
#include "chrome/common/url_constants.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/interstitial_page.h"
#include "content/public/browser/notification_types.h"
#include "content/public/browser/web_contents.h"
#include "grit/browser_resources.h"
#include "grit/generated_resources.h"
#include "net/base/escape.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/resource/resource_bundle.h"
using content::BrowserThread;
using content::InterstitialPage;
using content::WebContents;
namespace {
// Maximum time to show a blank page.
const int kMaxBlankPeriod = 3000;
// A utility function to set the dictionary's value given by |resource_id|.
void SetString(DictionaryValue* strings, const char* name, int resource_id) {
strings->SetString(name, l10n_util::GetStringUTF16(resource_id));
}
} // namespace
namespace chromeos {
OfflineLoadPage::OfflineLoadPage(WebContents* web_contents,
const GURL& url,
const CompletionCallback& callback)
: callback_(callback),
proceeded_(false),
web_contents_(web_contents),
url_(url) {
net::NetworkChangeNotifier::AddOnlineStateObserver(this);
interstitial_page_ = InterstitialPage::Create(web_contents, true, url, this);
}
OfflineLoadPage::~OfflineLoadPage() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
net::NetworkChangeNotifier::RemoveOnlineStateObserver(this);
}
void OfflineLoadPage::Show() {
interstitial_page_->Show();
}
std::string OfflineLoadPage::GetHTMLContents() {
DictionaryValue strings;
int64 time_to_wait = kMaxBlankPeriod;
// Set the timeout to show the page.
strings.SetInteger("time_to_wait", static_cast<int>(time_to_wait));
// Button labels
SetString(&strings, "heading", IDS_OFFLINE_LOAD_HEADLINE);
SetString(&strings, "try_loading", IDS_OFFLINE_TRY_LOADING);
SetString(&strings, "network_settings", IDS_OFFLINE_NETWORK_SETTINGS);
// Activation
strings.SetBoolean("show_activation", ShowActivationMessage());
bool rtl = base::i18n::IsRTL();
strings.SetString("textdirection", rtl ? "rtl" : "ltr");
string16 failed_url(ASCIIToUTF16(url_.spec()));
if (rtl)
base::i18n::WrapStringWithLTRFormatting(&failed_url);
strings.SetString("url", failed_url);
// The offline page for app has icons and slightly different message.
Profile* profile = Profile::FromBrowserContext(
web_contents_->GetBrowserContext());
DCHECK(profile);
const Extension* extension = NULL;
ExtensionService* extensions_service = profile->GetExtensionService();
// Extension service does not exist in test.
if (extensions_service)
extension = extensions_service->extensions()->GetHostedAppByURL(
ExtensionURLInfo(url_));
if (extension)
GetAppOfflineStrings(extension, failed_url, &strings);
else
GetNormalOfflineStrings(failed_url, &strings);
base::StringPiece html(
ResourceBundle::GetSharedInstance().GetRawDataResource(
IDR_OFFLINE_LOAD_HTML));
return jstemplate_builder::GetI18nTemplateHtml(html, &strings);
}
void OfflineLoadPage::OverrideRendererPrefs(
content::RendererPreferences* prefs) {
Profile* profile = Profile::FromBrowserContext(
web_contents_->GetBrowserContext());
renderer_preferences_util::UpdateFromSystemSettings(prefs, profile);
}
void OfflineLoadPage::OnProceed() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
proceeded_ = true;
NotifyBlockingPageComplete(true);
}
void OfflineLoadPage::OnDontProceed() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
// Ignore if it's already proceeded.
if (proceeded_)
return;
NotifyBlockingPageComplete(false);
}
void OfflineLoadPage::GetAppOfflineStrings(
const Extension* app,
const string16& failed_url,
DictionaryValue* strings) const {
strings->SetString("title", app->name());
GURL icon_url = app->GetIconURL(ExtensionIconSet::EXTENSION_ICON_LARGE,
ExtensionIconSet::MATCH_BIGGER);
if (icon_url.is_empty()) {
strings->SetString("display_icon", "none");
strings->SetString("icon", string16());
} else {
// Default icon is not accessible from interstitial page.
// TODO(oshima): Figure out how to use default icon.
strings->SetString("display_icon", "block");
strings->SetString("icon", icon_url.spec());
}
strings->SetString(
"msg",
l10n_util::GetStringFUTF16(IDS_APP_OFFLINE_LOAD_DESCRIPTION,
net::EscapeForHTML(failed_url)));
}
void OfflineLoadPage::GetNormalOfflineStrings(
const string16& failed_url, DictionaryValue* strings) const {
strings->SetString("title", web_contents_->GetTitle());
// No icon for normal web site.
strings->SetString("display_icon", "none");
strings->SetString("icon", string16());
strings->SetString(
"msg",
l10n_util::GetStringFUTF16(IDS_SITE_OFFLINE_LOAD_DESCRIPTION,
net::EscapeForHTML(failed_url)));
}
void OfflineLoadPage::CommandReceived(const std::string& cmd) {
std::string command(cmd);
// The Jasonified response has quotes, remove them.
if (command.length() > 1 && command[0] == '"') {
command = command.substr(1, command.length() - 2);
}
// TODO(oshima): record action for metrics.
if (command == "proceed") {
interstitial_page_->Proceed();
} else if (command == "dontproceed") {
interstitial_page_->DontProceed();
} else if (command == "open_network_settings") {
Browser* browser = BrowserList::GetLastActive();
DCHECK(browser);
browser->ShowOptionsTab(chrome::kInternetOptionsSubPage);
} else if (command == "open_activate_broadband") {
ash::Shell::GetInstance()->delegate()->OpenMobileSetup();
} else {
LOG(WARNING) << "Unknown command:" << cmd;
}
}
void OfflineLoadPage::NotifyBlockingPageComplete(bool proceed) {
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE, base::Bind(callback_, proceed));
}
void OfflineLoadPage::OnOnlineStateChanged(bool online) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DVLOG(1) << "OnlineStateObserver notification received: state="
<< (online ? "online" : "offline");
if (online) {
net::NetworkChangeNotifier::RemoveOnlineStateObserver(this);
interstitial_page_->Proceed();
}
}
bool OfflineLoadPage::ShowActivationMessage() {
CrosLibrary* cros = CrosLibrary::Get();
if (!cros || !cros->GetNetworkLibrary()->cellular_available())
return false;
const CellularNetworkVector& cell_networks =
cros->GetNetworkLibrary()->cellular_networks();
for (size_t i = 0; i < cell_networks.size(); ++i) {
chromeos::ActivationState activation_state =
cell_networks[i]->activation_state();
if (activation_state == ACTIVATION_STATE_ACTIVATED)
return false;
}
return true;
}
} // namespace chromeos
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