Touch gestures for System Tray/ IME/ Stylus/ Notifications

ash/system/web_notification/web_notification_tray.cc

 // 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 "ash/system/web_notification/web_notification_tray.h"
 
 #include "ash/accelerators/accelerator_controller.h"
 #include "ash/accessibility_delegate.h"
 #include "ash/resources/vector_icons/vector_icons.h"
 #include "ash/root_window_controller.h"
@@ skipping 287 matching lines @@
   popup_alignment_delegate_.reset(new AshPopupAlignmentDelegate(shelf));
   popup_collection_.reset(new message_center::MessagePopupCollection(
       message_center(), message_center_tray_.get(),
       popup_alignment_delegate_.get()));
   display::Screen* screen = display::Screen::GetScreen();
   popup_alignment_delegate_->StartObserving(
       screen, screen->GetDisplayNearestWindow(status_area_window_));
   OnMessageCenterTrayChanged();
 
   tray_container()->SetMargin(kTrayMainAxisInset, kTrayCrossAxisInset);
+
+  if (!drag_controller())
+    set_drag_controller(base::MakeUnique<TrayDragController>(shelf));
 }
 
 WebNotificationTray::~WebNotificationTray() {
   // Release any child views that might have back pointers before ~View().
   message_center_bubble_.reset();
   popup_alignment_delegate_.reset();
   popup_collection_.reset();
 }
 
 // static
@@ skipping 74 matching lines @@
 bool WebNotificationTray::ShouldShowMessageCenter() const {
   // Hidden at login screen, during supervised user creation, etc.
   return Shell::Get()->session_controller()->ShouldShowNotificationTray();
 }
 
 bool WebNotificationTray::IsMessageCenterBubbleVisible() const {
   return (message_center_bubble() &&
           message_center_bubble()->bubble()->IsVisible());
 }
 
-void WebNotificationTray::ShowMessageCenterBubble() {
-  if (!IsMessageCenterBubbleVisible())
-    message_center_tray_->ShowMessageCenterBubble();
-}
-
 void WebNotificationTray::UpdateAfterLoginStatusChange(
     LoginStatus login_status) {
   message_center()->SetLockedState(login_status == LoginStatus::LOCKED);
   OnMessageCenterTrayChanged();
 }
 
 void WebNotificationTray::UpdateAfterShelfAlignmentChange() {
   TrayBackgroundView::UpdateAfterShelfAlignmentChange();
   // Destroy any existing bubble so that it will be rebuilt correctly.
   message_center_tray_->HideMessageCenterBubble();
@@ skipping 14 matching lines @@
 void WebNotificationTray::HideBubbleWithView(
     const views::TrayBubbleView* bubble_view) {
   if (message_center_bubble() &&
       bubble_view == message_center_bubble()->bubble_view()) {
     message_center_tray_->HideMessageCenterBubble();
   } else if (popup_collection_.get()) {
     message_center_tray_->HidePopupBubble();
   }
 }
 
-bool WebNotificationTray::PerformAction(const ui::Event& event) {
-  if (message_center_bubble())
-    message_center_tray_->HideMessageCenterBubble();
-  else
-    message_center_tray_->ShowMessageCenterBubble();
-  return true;
-}
-
 void WebNotificationTray::BubbleViewDestroyed() {
   if (message_center_bubble())
     message_center_bubble()->bubble()->BubbleViewDestroyed();
 }
 
 void WebNotificationTray::OnMouseEnteredView() {}
 
 void WebNotificationTray::OnMouseExitedView() {}
 
 void WebNotificationTray::RegisterAccelerators(
@@ skipping 136 matching lines @@
 }
 
 void WebNotificationTray::ClickedOutsideBubble() {
   // Only hide the message center
   if (!message_center_bubble())
     return;
 
   message_center_tray_->HideMessageCenterBubble();
 }
 
+bool WebNotificationTray::PerformAction(const ui::Event& event) {
+  if (message_center_bubble())
+    message_center_tray_->HideMessageCenterBubble();
+  else
+    message_center_tray_->ShowMessageCenterBubble();
+  return true;
+}
+
+void WebNotificationTray::CloseBubble() {
+  message_center_tray_->HideMessageCenterBubble();
+}
+
+void WebNotificationTray::ShowBubble() {
+  if (!IsMessageCenterBubbleVisible())
+    message_center_tray_->ShowMessageCenterBubble();
+}
+
+views::TrayBubbleView* WebNotificationTray::GetBubbleView() {
+  return message_center_bubble_ ? message_center_bubble_->bubble_view()
+                                : nullptr;
+}
+
 message_center::MessageCenter* WebNotificationTray::message_center() const {
   return message_center_tray_->message_center();
 }
 
 // Methods for testing
 
 bool WebNotificationTray::IsPopupVisible() const {
   return message_center_tray_->popups_visible();
 }
 
 message_center::MessageCenterBubble*
 WebNotificationTray::GetMessageCenterBubbleForTest() {
   if (!message_center_bubble())
     return nullptr;
   return static_cast<message_center::MessageCenterBubble*>(
       message_center_bubble()->bubble());
 }
 
 }  // namespace ash