Added interstitial page for merge session.

chrome/browser/chromeos/login/merge_session_load_page.cc

+// Copyright (c) 2013 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/login/merge_session_load_page.h"
+
+#include "ash/shell.h"
+#include "ash/shell_delegate.h"
+#include "ash/system/tray/system_tray_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/extensions/extension_system.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/renderer_preferences_util.h"
+#include "chrome/browser/tab_contents/tab_util.h"
+#include "chrome/common/chrome_notification_types.h"
+#include "chrome/common/extensions/extension.h"
+#include "chrome/common/extensions/extension_constants.h"
+#include "chrome/common/extensions/extension_icon_set.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"
+#include "ui/webui/jstemplate_builder.h"
+
+using content::BrowserThread;
+using content::InterstitialPage;
+using content::WebContents;
+
+namespace {
+
+// Delay time for showing interstitial page.
+const int kShowDelayTimeMS = 1000;
+
+// Maximum time for showing interstitial page.
+const int kTotalWaitTimeMS = 10000;
+
+}  // namespace
+
+namespace chromeos {
+
+MergeSessionLoadPage::MergeSessionLoadPage(WebContents* web_contents,
+                                           const GURL& url,
+                                           const CompletionCallback& callback)
+    : callback_(callback),
+      proceeded_(false),
+      web_contents_(web_contents),
+      url_(url) {
+  UserManager::Get()->AddObserver(this);
+  interstitial_page_ = InterstitialPage::Create(web_contents, true, url, this);
+}
+
+MergeSessionLoadPage::~MergeSessionLoadPage() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  UserManager::Get()->RemoveObserver(this);
+}
+
+void MergeSessionLoadPage::Show() {
+  interstitial_page_->Show();
+}
+
+std::string MergeSessionLoadPage::GetHTMLContents() {
+  DictionaryValue strings;
+  strings.SetString("title", web_contents_->GetTitle());
+  // Set the timeout to show the page.
+  strings.SetInteger("show_delay_time", kShowDelayTimeMS);
+  strings.SetInteger("total_wait_time", kTotalWaitTimeMS);
+  // TODO(zelidrag): Flip the message to IDS_MERGE_SESSION_LOAD_HEADLINE
+  // after merge.
+  strings.SetString("heading",
+                    l10n_util::GetStringUTF16(IDS_TAB_LOADING_TITLE));
+
+  bool rtl = base::i18n::IsRTL();
+  strings.SetString("textdirection", rtl ? "rtl" : "ltr");
+
+  base::StringPiece html(
+      ResourceBundle::GetSharedInstance().GetRawDataResource(
+          IDR_MERGE_SESSION_LOAD_HTML));
+  return webui::GetI18nTemplateHtml(html, &strings);
+}
+
+void MergeSessionLoadPage::OverrideRendererPrefs(
+      content::RendererPreferences* prefs) {
+  Profile* profile = Profile::FromBrowserContext(
+      web_contents_->GetBrowserContext());
+  renderer_preferences_util::UpdateFromSystemSettings(prefs, profile);
+}
+
+void MergeSessionLoadPage::OnProceed() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  proceeded_ = true;
+  NotifyBlockingPageComplete();
+}
+
+void MergeSessionLoadPage::OnDontProceed() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  // Ignore if it's already proceeded.
+  if (proceeded_)
+    return;
+  NotifyBlockingPageComplete();
+}
+
+void MergeSessionLoadPage::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);
+
+  if (command == "proceed") {
+    interstitial_page_->Proceed();
+  } else {
+    DVLOG(1) << "Unknown command:" << cmd;
+  }
+}
+
+void MergeSessionLoadPage::NotifyBlockingPageComplete() {
+  if (!callback_.is_null()) {
+    BrowserThread::PostTask(
+        BrowserThread::IO, FROM_HERE, callback_);
+  }
+}
+
+void MergeSessionLoadPage::MergeSessionStateChanged(
+    UserManager::MergeSessionState state) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DVLOG(1) << "Merge session is "
+           << (state !=  UserManager:: MERGE_STATUS_IN_PROCESS ?
+                  " NOT " : "")
+           << " in progress, "
+           << state;
+  if (state !=  UserManager:: MERGE_STATUS_IN_PROCESS) {
+    UserManager::Get()->RemoveObserver(this);
+    interstitial_page_->Proceed();
+  }
+}
+
+}  // namespace chromeos