Support creating progress bar notification for Windows

ui/message_center/views/notification_view.cc

Index: ui/message_center/views/notification_view.cc
diff --git a/ui/message_center/views/notification_view.cc b/ui/message_center/views/notification_view.cc
index 0522e751398cb249f58d0f4a41c014ac006031b2..3a3daf17e8e76d0ba07c4be32b4d11b5877c2f03 100644
--- a/ui/message_center/views/notification_view.cc
+++ b/ui/message_center/views/notification_view.cc
@@ -24,6 +24,7 @@
 #include "ui/views/controls/button/image_button.h"
 #include "ui/views/controls/image_view.h"
 #include "ui/views/controls/label.h"
+#include "ui/views/controls/progress_bar.h"
 #include "ui/views/layout/box_layout.h"
 #include "ui/views/layout/fill_layout.h"
 #include "ui/views/widget/widget.h"
@@ -38,6 +39,9 @@ const int kTextLeftPadding = kIconSize + message_center::kIconToTextPadding;
 const int kTextBottomPadding = 12;
 const int kTextRightPadding = 23;
 const int kItemTitleToMessagePadding = 3;
+const int kProgressBarWidth = message_center::kNotificationWidth -
+    kTextLeftPadding - kTextRightPadding;
+const int kProgressBarHeight = 8;
 const int kButtonVecticalPadding = 0;
 const int kButtonTitleTopPadding = 0;
 
@@ -75,6 +79,11 @@ views::Border* MakeTextBorder(int padding, int top, int bottom) {
 }
 
 // static
+views::Border* MakeProgressBarBorder(int top, int bottom) {
+  return MakeEmptyBorder(top, kTextLeftPadding, bottom, kTextRightPadding);
+}
+
+// static
 views::Border* MakeSeparatorBorder(int top, int left, SkColor color) {
   return views::Border::CreateSolidSidedBorder(top, left, 0, 0, color);
 }
@@ -223,6 +232,33 @@ gfx::Size ProportionalImageView::GetImageSizeForWidth(int width) {
   return message_center::GetImageSizeForWidth(width, size);
 }
 
+// NotificationProgressBar /////////////////////////////////////////////////////
+
+class NotificationProgressBar : public views::ProgressBar {
+ public:
+  NotificationProgressBar();
+  virtual ~NotificationProgressBar();
+
+ private:
+  // Overriden from View
+  virtual gfx::Size GetPreferredSize() OVERRIDE;
+
+  DISALLOW_COPY_AND_ASSIGN(NotificationProgressBar);
+};
+
+NotificationProgressBar::NotificationProgressBar() {
+}
+
+NotificationProgressBar::~NotificationProgressBar() {
+}
+
+gfx::Size NotificationProgressBar::GetPreferredSize() {
+  gfx::Size pref_size(kProgressBarWidth, kProgressBarHeight);
+  gfx::Insets insets = GetInsets();
+  pref_size.Enlarge(insets.width(), insets.height());
+  return pref_size;
+}
+
 // NotificationButton //////////////////////////////////////////////////////////
 
 // NotificationButtons render the action buttons of notifications.
@@ -345,6 +381,7 @@ MessageView* NotificationView::Create(const Notification& notification,
     case NOTIFICATION_TYPE_IMAGE:
     case NOTIFICATION_TYPE_MULTIPLE:
     case NOTIFICATION_TYPE_SIMPLE:
+    case NOTIFICATION_TYPE_PROGRESS:
       break;
     default:
       // If the caller asks for an unrecognized kind of view (entirely possible
@@ -422,6 +459,15 @@ NotificationView::NotificationView(const Notification& notification,
     accessible_lines.push_back(notification.message());
   }
 
+  // Create the progress bar view.
+  progress_bar_view_ = NULL;
+  if (notification.type() == NOTIFICATION_TYPE_PROGRESS) {
+    progress_bar_view_ = new NotificationProgressBar();
+    progress_bar_view_->set_border(MakeProgressBarBorder(12, 2));

[dewittj, 2013/07/15 15:32:15]

What are these constants?  Can we name them?

[jianli, 2013/07/23 19:04:53]

Done.

+    progress_bar_view_->SetValue(notification.progress() / 100.0);
+    top_view_->AddChildView(progress_bar_view_);
+  }
+
   // Create the list item views (up to a maximum).
   int padding = kMessageLineHeight - views::Label().font().GetHeight();
   std::vector<NotificationItem> items = notification.items();