mandoline/omnibox: Add some opacity.

mandoline/ui/omnibox/omnibox_impl.cc

 // Copyright 2015 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 "mandoline/ui/omnibox/omnibox_impl.h"
 
 #include "base/strings/string16.h"
 #include "components/view_manager/public/cpp/view_manager_client_factory.h"
 #include "components/window_manager/public/interfaces/window_manager.mojom.h"
 #include "mandoline/ui/aura/aura_init.h"
@@ skipping 42 matching lines @@
 
 void OmniboxImpl::OnEmbed(mojo::View* root,
     mojo::InterfaceRequest<mojo::ServiceProvider> services,
     mojo::ServiceProviderPtr exposed_services) {
   if (!aura_init_.get()) {
     aura_init_.reset(new AuraInit);
     edit_ = new views::Textfield;
     edit_->set_controller(this);
   }
 
+  const int kOpacity = 0xC0;
   views::WidgetDelegateView* widget_delegate = new views::WidgetDelegateView;
   widget_delegate->GetContentsView()->set_background(
-    views::Background::CreateSolidBackground(0xFFDDDDDD));
+      views::Background::CreateSolidBackground(
+          SkColorSetA(0xDDDDDD, kOpacity)));
   widget_delegate->GetContentsView()->AddChildView(edit_);
   widget_delegate->GetContentsView()->SetLayoutManager(this);
 
   // TODO(beng): we may be leaking these on subsequent calls to OnEmbed()...
   //             probably should only allow once instance per view.
   views::Widget* widget = new views::Widget;
   views::Widget::InitParams params(
       views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
   params.native_widget =
       new NativeWidgetViewManager(widget, app_impl_->shell(), root);
   params.delegate = widget_delegate;
   params.bounds = root->bounds().To<gfx::Rect>();
+  params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW;
   widget->Init(params);
   widget->Show();
+  widget->GetCompositor()->SetBackgroundColor(
+      SkColorSetA(SK_ColorBLACK, kOpacity));
   root->SetFocus();
   edit_->SetText(url_.To<base::string16>());
   edit_->SelectAll(false);
   edit_->RequestFocus();
 }
 
 void OmniboxImpl::OnViewManagerDisconnected(mojo::ViewManager* view_manager) {}
 
 ////////////////////////////////////////////////////////////////////////////////
 // OmniboxImpl, views::LayoutManager implementation:
@@ skipping 39 matching lines @@
 }
 
 void OmniboxImpl::ShowForURL(const mojo::String& url) {
   url_ = url;
   mojo::WindowManagerPtr window_manager;
   app_impl_->ConnectToService("mojo:window_manager", &window_manager);
   window_manager->Embed("mojo:omnibox", nullptr, nullptr);
 }
 
 }  // namespace mandoline