Move common notification layout to base class

ash/system/locale/tray_locale.cc

Index: ash/system/locale/tray_locale.cc
diff --git a/ash/system/locale/tray_locale.cc b/ash/system/locale/tray_locale.cc
index 61f80d7d87a108833effaf97a22d406b43e6b4d7..411accaed1562f166441f12383912984b025f50a 100644
--- a/ash/system/locale/tray_locale.cc
+++ b/ash/system/locale/tray_locale.cc
@@ -4,57 +4,97 @@
 
 #include "ash/system/locale/tray_locale.h"
 
+#include "ash/system/tray/tray_constants.h"
 #include "ash/system/tray/tray_views.h"
 #include "base/string16.h"
 #include "grit/ash_strings.h"
 #include "grit/ui_resources.h"
 #include "ui/base/l10n/l10n_util.h"
+#include "ui/base/resource/resource_bundle.h"
 #include "ui/views/view.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/controls/link.h"
 #include "ui/views/controls/link_listener.h"
+#include "ui/views/layout/box_layout.h"
 
 namespace ash {
 namespace internal {
 
 namespace tray {
 
-class LocaleNotificationView : public TrayNotificationView,
-                               public views::LinkListener {
+class LocaleMessageView : public views::View,
+                          public views::LinkListener {
  public:
-  LocaleNotificationView(TrayLocale* tray,
-                         LocaleObserver::Delegate* delegate,
-                         const std::string& cur_locale,
-                         const std::string& from_locale,
-                         const std::string& to_locale)
-      : tray_(tray),
-        delegate_(delegate) {
+  LocaleMessageView(LocaleObserver::Delegate* delegate,
+              const std::string& cur_locale,
+              const std::string& from_locale,
+              const std::string& to_locale)
+      : delegate_(delegate) {
+    SetLayoutManager(
+        new views::BoxLayout(views::BoxLayout::kVertical, 0, 0, 1));
+
     string16 from = l10n_util::GetDisplayNameForLocale(
         from_locale, cur_locale, true);
     string16 to = l10n_util::GetDisplayNameForLocale(
         to_locale, cur_locale, true);
 
-    views::View* container = new views::View;
-
     views::Label* message = new views::Label(
         l10n_util::GetStringFUTF16(
             IDS_ASH_STATUS_TRAY_LOCALE_CHANGE_MESSAGE, from, to));
-    container->AddChildView(message);
+    message->SetHorizontalAlignment(views::Label::ALIGN_LEFT);
+    message->SetMultiLine(true);
+    message->SizeToFit(kTrayNotificationContentsWidth);
+    AddChildView(message);
 
     views::Link* revert = new views::Link(
         l10n_util::GetStringFUTF16(
             IDS_ASH_STATUS_TRAY_LOCALE_REVERT_MESSAGE, from));
-    container->AddChildView(revert);
-
-    InitView(container);
+    revert->set_listener(this);
+    revert->SetHorizontalAlignment(views::Label::ALIGN_LEFT);
+    revert->SetMultiLine(true);
+    revert->SizeToFit(kTrayNotificationContentsWidth);
+    AddChildView(revert);
   }
 
+  virtual ~LocaleMessageView() {}
+
   // Overridden from views::LinkListener.
   virtual void LinkClicked(views::Link* source, int event_flags) OVERRIDE {
     if (delegate_)
       delegate_->RevertLocaleChange();
   }
 
+ private:
+  LocaleObserver::Delegate* delegate_;
+
+  DISALLOW_COPY_AND_ASSIGN(LocaleMessageView);
+};
+
+class LocaleNotificationView : public TrayNotificationView {
+ public:
+  LocaleNotificationView(TrayLocale* tray,
+                         LocaleObserver::Delegate* delegate,
+                         const std::string& cur_locale,
+                         const std::string& from_locale,
+                         const std::string& to_locale)
+      : TrayNotificationView(IDR_AURA_UBER_TRAY_LOCALE),
+        tray_(tray),
+        delegate_(delegate) {
+    views::View* container = new LocaleMessageView(
+        delegate, cur_locale, from_locale, to_locale);
+    InitView(container);
+  }
+
+  void Update(LocaleObserver::Delegate* delegate,
+              const std::string& cur_locale,
+              const std::string& from_locale,
+              const std::string& to_locale) {
+    delegate_ = delegate;
+    views::View* container = new LocaleMessageView(
+        delegate, cur_locale, from_locale, to_locale);
+    UpdateView(container);
+  }
+
   // Overridden from TrayNotificationView.
   virtual void OnClose() OVERRIDE {
     if (delegate_)
@@ -69,22 +109,16 @@ class LocaleNotificationView : public TrayNotificationView,
   DISALLOW_COPY_AND_ASSIGN(LocaleNotificationView);
 };
 
-
 }  // namespace tray
 
 TrayLocale::TrayLocale()
-    : TrayImageItem(IDR_AURA_UBER_TRAY_LOCALE),
-      notification_(NULL),
+    : notification_(NULL),
       delegate_(NULL) {
 }
 
 TrayLocale::~TrayLocale() {
 }
 
-bool TrayLocale::GetInitialVisibility() {
-  return notification_ != NULL;
-}
-
 views::View* TrayLocale::CreateNotificationView(user::LoginStatus status) {
   if (!delegate_)
     return NULL;
@@ -102,13 +136,14 @@ void TrayLocale::OnLocaleChanged(LocaleObserver::Delegate* delegate,
                                  const std::string& cur_locale,
                                  const std::string& from_locale,
                                  const std::string& to_locale) {
-  if (notification_)
-    HideNotificationView();
   delegate_ = delegate;
   cur_locale_ = cur_locale;
   from_locale_ = from_locale;
   to_locale_ = to_locale;
-  ShowNotificationView();
+  if (notification_)
+    notification_->Update(delegate, cur_locale_, from_locale_, to_locale_);
+  else
+    ShowNotificationView();
 }
 
 }  // namespace internal