Added version info to WebUI

chrome/browser/chromeos/login/version_info_updater.cc

Index: chrome/browser/chromeos/login/version_info_updater.cc
diff --git a/chrome/browser/chromeos/login/version_info_updater.cc b/chrome/browser/chromeos/login/version_info_updater.cc
new file mode 100644
index 0000000000000000000000000000000000000000..c2b1398bad2322dafa429270c3e6d6ca619137c4
--- /dev/null
+++ b/chrome/browser/chromeos/login/version_info_updater.cc
@@ -0,0 +1,207 @@
+// Copyright (c) 2011 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/version_info_updater.h"
+
+#include <string>
+#include <vector>
+
+#include "base/string16.h"
+#include "base/string_util.h"
+#include "base/stringprintf.h"
+#include "base/utf_string_conversions.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/chromeos/cros/cros_library.h"
+#include "chrome/browser/chromeos/wm_ipc.h"
+#include "chrome/browser/policy/browser_policy_connector.h"
+#include "chrome/browser/profiles/profile_manager.h"
+#include "chrome/common/chrome_version_info.h"
+#include "googleurl/src/gurl.h"
+#include "grit/chromium_strings.h"
+#include "grit/generated_resources.h"
+#include "grit/theme_resources.h"
+#include "third_party/cros/chromeos_wm_ipc_enums.h"
+#include "ui/base/l10n/l10n_util.h"
+#include "ui/base/resource/resource_bundle.h"
+
+namespace chromeos {
+
+///////////////////////////////////////////////////////////////////////////////
+// VersionInfoUpdater public:
+
+VersionInfoUpdater::VersionInfoUpdater(Delegate* delegate)
+    : delegate_(delegate) {
+}
+
+VersionInfoUpdater::~VersionInfoUpdater() {
+}
+
+void VersionInfoUpdater::StartUpdate(bool is_official_build) {
+  if (CrosLibrary::Get()->EnsureLoaded()) {
+    version_loader_.EnablePlatformVersions(true);
+    version_loader_.GetVersion(
+        &version_consumer_,
+        NewCallback(this, &VersionInfoUpdater::OnVersion),
+        is_official_build ?
+            VersionLoader::VERSION_SHORT_WITH_DATE :
+            VersionLoader::VERSION_FULL);
+    if (!is_official_build) {
+      boot_times_loader_.GetBootTimes(
+          &boot_times_consumer_,
+          NewCallback(this, &VersionInfoUpdater::OnBootTimes));
+    }
+  } else {
+    UpdateVersionLabel();
+  }
+
+  policy::CloudPolicySubsystem* cloud_policy =
+      g_browser_process->browser_policy_connector()->
+          device_cloud_policy_subsystem();
+  if (cloud_policy) {
+    // Two-step reset because we want to construct new ObserverRegistrar after
+    // destruction of old ObserverRegistrar to avoid DCHECK violation because
+    // of adding existing observer.
+    cloud_policy_registrar_.reset();
+    cloud_policy_registrar_.reset(
+        new policy::CloudPolicySubsystem::ObserverRegistrar(
+            cloud_policy, this));
+
+    // Ensure that we have up-to-date enterprise info in case enterprise policy
+    // is already fetched and has finished initialization.
+    UpdateEnterpriseInfo();
+  }
+}
+
+void VersionInfoUpdater::UpdateVersionLabel() {
+  if (!CrosLibrary::Get()->EnsureLoaded()) {
+    if (delegate_) {
+      delegate_->OnOSVersionLabelTextUpdated(
+          CrosLibrary::Get()->load_error_string());
+    }
+    return;
+  }
+
+  if (version_text_.empty())
+    return;
+
+  chrome::VersionInfo version_info;
+  std::string label_text = l10n_util::GetStringUTF8(IDS_PRODUCT_NAME);
+  label_text += ' ';
+  label_text += version_info.Version();
+  label_text += " (";
+  // TODO(rkc): Fix this for RTL.
+  // http://code.google.com/p/chromium-os/issues/detail?id=17621
+  label_text += l10n_util::GetStringUTF8(IDS_PLATFORM_LABEL);
+  label_text += ' ';
+  label_text += version_text_;
+  label_text += ')';
+
+  if (!enterprise_domain_text_.empty()) {
+    label_text += ' ';
+    if (enterprise_status_text_.empty()) {
+      label_text += l10n_util::GetStringFUTF8(
+          IDS_LOGIN_MANAGED_BY_LABEL_FORMAT,
+          UTF8ToUTF16(enterprise_domain_text_));
+    } else {
+      label_text += l10n_util::GetStringFUTF8(
+          IDS_LOGIN_MANAGED_BY_WITH_STATUS_LABEL_FORMAT,
+          UTF8ToUTF16(enterprise_domain_text_),
+          UTF8ToUTF16(enterprise_status_text_));
+    }
+  }
+
+  // Workaround over incorrect width calculation in old fonts.
+  // TODO(glotov): remove the following line when new fonts are used.
+  label_text += ' ';
+
+  if (delegate_)
+    delegate_->OnOSVersionLabelTextUpdated(label_text);
+}
+
+void VersionInfoUpdater::UpdateEnterpriseInfo() {
+  policy::BrowserPolicyConnector* policy_connector =
+      g_browser_process->browser_policy_connector();
+
+  std::string status_text;
+  policy::CloudPolicySubsystem* cloud_policy_subsystem =
+      policy_connector->device_cloud_policy_subsystem();
+  if (cloud_policy_subsystem) {
+    switch (cloud_policy_subsystem->state()) {
+      case policy::CloudPolicySubsystem::UNENROLLED:
+        status_text = l10n_util::GetStringUTF8(
+            IDS_LOGIN_MANAGED_BY_STATUS_PENDING);
+        break;
+      case policy::CloudPolicySubsystem::UNMANAGED:
+      case policy::CloudPolicySubsystem::BAD_GAIA_TOKEN:
+      case policy::CloudPolicySubsystem::LOCAL_ERROR:
+        status_text = l10n_util::GetStringUTF8(
+            IDS_LOGIN_MANAGED_BY_STATUS_LOST_CONNECTION);
+        break;
+      case policy::CloudPolicySubsystem::NETWORK_ERROR:
+        status_text = l10n_util::GetStringUTF8(
+            IDS_LOGIN_MANAGED_BY_STATUS_NETWORK_ERROR);
+        break;
+      case policy::CloudPolicySubsystem::TOKEN_FETCHED:
+      case policy::CloudPolicySubsystem::SUCCESS:
+        break;
+    }
+  }
+
+  SetEnterpriseInfo(policy_connector->GetEnterpriseDomain(), status_text);
+}
+
+void VersionInfoUpdater::SetEnterpriseInfo(const std::string& domain_name,
+                                       const std::string& status_text) {
+  if (domain_name != enterprise_domain_text_ ||
+      status_text != enterprise_status_text_) {
+    enterprise_domain_text_ = domain_name;
+    enterprise_status_text_ = status_text;
+    UpdateVersionLabel();
+  }
+}
+
+void VersionInfoUpdater::OnVersion(
+    VersionLoader::Handle handle, std::string version) {
+  version_text_.swap(version);
+  UpdateVersionLabel();
+}
+
+void VersionInfoUpdater::OnBootTimes(
+    BootTimesLoader::Handle handle, BootTimesLoader::BootTimes boot_times) {
+  const char* kBootTimesNoChromeExec =
+      "Non-firmware boot took %.2f seconds (kernel %.2fs, system %.2fs)";
+  const char* kBootTimesChromeExec =
+      "Non-firmware boot took %.2f seconds "
+      "(kernel %.2fs, system %.2fs, chrome %.2fs)";
+  std::string boot_times_text;
+
+  if (boot_times.chrome > 0) {
+    boot_times_text =
+        base::StringPrintf(
+            kBootTimesChromeExec,
+            boot_times.total,
+            boot_times.pre_startup,
+            boot_times.system,
+            boot_times.chrome);
+  } else {
+    boot_times_text =
+        base::StringPrintf(
+            kBootTimesNoChromeExec,
+            boot_times.total,
+            boot_times.pre_startup,
+            boot_times.system);
+  }
+  // Use UTF8ToWide once this string is localized.
+  if (delegate_)
+    delegate_->OnBootTimesLabelTextUpdated(boot_times_text);
+}
+
+void VersionInfoUpdater::OnPolicyStateChanged(
+    policy::CloudPolicySubsystem::PolicySubsystemState state,
+    policy::CloudPolicySubsystem::ErrorDetails error_details) {
+  UpdateEnterpriseInfo();
+}
+
+}  // namespace chromeos
+