Draggable peeking/fullscreen launcher with transparent background.

ash/app_list/app_list_delegate_impl.cc

Index: ash/app_list/app_list_delegate_impl.cc
diff --git a/ash/app_list/app_list_delegate_impl.cc b/ash/app_list/app_list_delegate_impl.cc
index c8fbf0f0edde5c4af59d8358fb5f6e6c17f0016b..70b6c0efddb9b843d31c74428798a9eafc8c3383 100644
--- a/ash/app_list/app_list_delegate_impl.cc
+++ b/ash/app_list/app_list_delegate_impl.cc
@@ -11,6 +11,7 @@
 #include "ash/shell.h"
 #include "ash/shell_port.h"
 #include "ash/wm_window.h"
+#include "ui/app_list/app_list_features.h"
 #include "ui/app_list/presenter/app_list.h"
 
 namespace ash {
@@ -32,10 +33,19 @@ void AppListDelegateImpl::OnAppListVisibilityChanged(bool visible,
   if (!app_list_button)
     return;
 
-  if (visible)
+  if (visible) {
     app_list_button->OnAppListShown();
-  else
+    if (app_list::features::IsFullscreenAppListEnabled()) {
+      Shelf* shelf = Shelf::ForWindow(root_window);
+      shelf->OnAppListIsActive(true);

[vadimt, 2017/05/26 23:44:08]

This repeated part can be moved to after if.

[newcomer, 2017/05/30 21:37:03]

Done.

+    }
+  } else {
     app_list_button->OnAppListDismissed();
+    if (app_list::features::IsFullscreenAppListEnabled()) {
+      Shelf* shelf = Shelf::ForWindow(root_window);
+      shelf->OnAppListIsActive(true);

[xiyuan, 2017/05/30 16:32:33]

Should this be "false" ? We probably can use |visible| here.

[newcomer, 2017/05/30 21:37:03]

Correct, I noticed this too and It's fixed.

+    }
+  }
 }
 
 }  // namespace ash