Draggable peeking/fullscreen launcher with transparent background.

ash/shelf/shelf.cc

 // Copyright 2016 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/shelf/shelf.h"
 
 #include "ash/public/cpp/config.h"
 #include "ash/public/cpp/shelf_item_delegate.h"
 #include "ash/public/cpp/shell_window_ids.h"
 #include "ash/root_window_controller.h"
@@ skipping 301 matching lines @@
 }
 
 ShelfLockingManager* Shelf::GetShelfLockingManagerForTesting() {
   return &shelf_locking_manager_;
 }
 
 ShelfView* Shelf::GetShelfViewForTesting() {
   return shelf_widget_->shelf_view_for_testing();
 }
 
+void Shelf::OnAppListIsActive(bool hideBackground) {
+  shelf_layout_manager()->OnAppListIsActive(hideBackground);
+}
+
 void Shelf::WillDeleteShelfLayoutManager() {
   if (Shell::GetAshConfig() == Config::MASH) {
     // TODO(sky): this should be removed once Shell is used everywhere.
     ShutdownShelfWidget();
   }
 
   // Clear event handlers that might forward events to the destroyed instance.
   auto_hide_event_handler_.reset();
   bezel_event_handler_.reset();
 
@@ skipping 21 matching lines @@
 
 void Shelf::OnBackgroundUpdated(ShelfBackgroundType background_type,
                                 AnimationChangeType change_type) {
   if (background_type == GetBackgroundType())
     return;
   for (auto& observer : observers_)
     observer.OnBackgroundTypeChanged(background_type, change_type);
 }
 
 }  // namespace ash