[protector] Added SessionStartupChange for representing changes in SessionStartupPref.

chrome/browser/protector/session_startup_change.cc

Index: chrome/browser/protector/session_startup_change.cc
diff --git a/chrome/browser/protector/session_startup_change.cc b/chrome/browser/protector/session_startup_change.cc
new file mode 100644
index 0000000000000000000000000000000000000000..0d4dd556907d60923eff423b3d94d1190f279a2e
--- /dev/null
+++ b/chrome/browser/protector/session_startup_change.cc
@@ -0,0 +1,166 @@
+// 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 "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/logging.h"
+#include "base/metrics/histogram.h"
+#include "base/utf_string_conversions.h"
+#include "chrome/browser/prefs/session_startup_pref.h"
+#include "chrome/browser/protector/base_setting_change.h"
+#include "chrome/browser/protector/histograms.h"
+#include "chrome/browser/protector/protector_service.h"
+#include "chrome/browser/protector/protector_service_factory.h"
+#include "grit/chromium_strings.h"
+#include "grit/generated_resources.h"
+#include "grit/theme_resources.h"
+#include "ui/base/l10n/l10n_util.h"
+
+namespace protector {
+
+// STARTUP_SETTING and session startup settings change tracked by Protector.
+class SessionStartupChange : public BaseSettingChange {
+ public:
+  SessionStartupChange(const SessionStartupPref& actual,
+                       const SessionStartupPref& backup);
+
+  // BaseSettingChange overrides:
+  virtual bool Init(Profile* profile) OVERRIDE;
+  virtual void Apply(Browser* browser) OVERRIDE;
+  virtual void Discard(Browser* browser) OVERRIDE;
+  virtual void Timeout() OVERRIDE;
+  virtual int GetBadgeIconID() const OVERRIDE;
+  virtual int GetMenuItemIconID() const OVERRIDE;
+  virtual int GetBubbleIconID() const OVERRIDE;
+  virtual string16 GetBubbleTitle() const OVERRIDE;
+  virtual string16 GetBubbleMessage() const OVERRIDE;
+  virtual string16 GetApplyButtonText() const OVERRIDE;
+  virtual string16 GetDiscardButtonText() const OVERRIDE;
+
+ private:
+  virtual ~SessionStartupChange();
+
+  SessionStartupPref new_pref_;
+  SessionStartupPref backup_pref_;
+
+  DISALLOW_COPY_AND_ASSIGN(SessionStartupChange);
+};
+
+SessionStartupChange::SessionStartupChange(const SessionStartupPref& actual,
+                                           const SessionStartupPref& backup)
+    : new_pref_(actual),
+      backup_pref_(backup) {
+  UMA_HISTOGRAM_ENUMERATION(
+      kProtectorHistogramStartupSettingsChanged,
+      actual.type,
+      SessionStartupPref::MAX);
+}
+
+SessionStartupChange::~SessionStartupChange() {
+}
+
+bool SessionStartupChange::Init(Profile* profile) {
+  if (!BaseSettingChange::Init(profile))
+    return false;
+  SessionStartupPref::SetStartupPref(profile, backup_pref_);
+  return true;
+}
+
+void SessionStartupChange::Apply(Browser* browser) {
+  UMA_HISTOGRAM_ENUMERATION(
+      kProtectorHistogramStartupSettingsApplied,
+      new_pref_.type,
+      SessionStartupPref::MAX);
+  SessionStartupPref::SetStartupPref(profile(), new_pref_);
+}
+
+void SessionStartupChange::Discard(Browser* browser) {
+  UMA_HISTOGRAM_ENUMERATION(
+      kProtectorHistogramStartupSettingsDiscarded,
+      new_pref_.type,
+      SessionStartupPref::MAX);
+  // Nothing to do here since |backup_pref_| was already made active by Init().
+}
+
+void SessionStartupChange::Timeout() {
+  UMA_HISTOGRAM_ENUMERATION(
+      kProtectorHistogramStartupSettingsTimeout,
+      new_pref_.type,
+      SessionStartupPref::MAX);
+}
+
+int SessionStartupChange::GetBadgeIconID() const {
+  // Icons are the same for homepage and startup settings.
+  return IDR_HOMEPAGE_CHANGE_BADGE;
+}
+
+int SessionStartupChange::GetMenuItemIconID() const {
+  return IDR_HOMEPAGE_CHANGE_MENU;
+}
+
+int SessionStartupChange::GetBubbleIconID() const {
+  return IDR_HOMEPAGE_CHANGE_ALERT;
+}
+
+string16 SessionStartupChange::GetBubbleTitle() const {
+  return l10n_util::GetStringUTF16(IDS_STARTUP_SETTINGS_CHANGE_TITLE);
+}
+
+string16 SessionStartupChange::GetBubbleMessage() const {
+  return l10n_util::GetStringUTF16(IDS_STARTUP_SETTINGS_CHANGE_BUBBLE_MESSAGE);
+}
+
+string16 SessionStartupChange::GetApplyButtonText() const {
+  switch (new_pref_.type) {
+    case SessionStartupPref::DEFAULT:
+      return l10n_util::GetStringUTF16(IDS_CHANGE_STARTUP_SETTINGS_NTP);
+
+    case SessionStartupPref::LAST:
+      return l10n_util::GetStringUTF16(IDS_CHANGE_STARTUP_SETTINGS_RESTORE);
+
+    case SessionStartupPref::URLS:
+      if (new_pref_.urls.empty()) {
+        return l10n_util::GetStringUTF16(IDS_CHANGE_STARTUP_SETTINGS_NTP);
+      } else {
+        string16 first_url = UTF8ToUTF16(new_pref_.urls[0].host());
+        return l10n_util::GetStringFUTF16(IDS_CHANGE_STARTUP_SETTINGS_URLS,
+                                          first_url);
+      }
+
+    default:
+      NOTREACHED();
+      return string16();
+  }
+}
+
+string16 SessionStartupChange::GetDiscardButtonText() const {
+  switch (backup_pref_.type) {
+    case SessionStartupPref::DEFAULT:
+      return l10n_util::GetStringUTF16(IDS_KEEP_STARTUP_SETTINGS_NTP);
+
+    case SessionStartupPref::LAST:
+      return l10n_util::GetStringUTF16(IDS_KEEP_STARTUP_SETTINGS_RESTORE);
+
+    case SessionStartupPref::URLS:
+      if (backup_pref_.urls.empty()) {
+        return l10n_util::GetStringUTF16(IDS_KEEP_STARTUP_SETTINGS_NTP);
+      } else {
+        string16 first_url = UTF8ToUTF16(backup_pref_.urls[0].host());
+        return l10n_util::GetStringFUTF16(IDS_KEEP_STARTUP_SETTINGS_URLS,
+                                          first_url);
+      }
+
+    default:
+      NOTREACHED();
+      return string16();
+  }
+}
+
+BaseSettingChange* CreateSessionStartupChange(
+    const SessionStartupPref& actual,
+    const SessionStartupPref& backup) {
+  return new SessionStartupChange(actual, backup);
+}
+
+}  // namespace protector