Changes HomeCard to fullscreen from bottom when typing a query.

athena/home/home_card_impl.cc

 // Copyright 2014 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 "athena/home/home_card_impl.h"
 
 #include <cmath>
 #include <limits>
 
 #include "athena/env/public/athena_env.h"
@@ skipping 119 matching lines @@
     SetChildBoundsDirect(child, requested_bounds);
   }
 
   aura::Window* home_card_;
   ui::Layer* minimized_layer_;
 
   DISALLOW_COPY_AND_ASSIGN(HomeCardLayoutManager);
 };
 
 // The container view of home card contents of each state.
-class HomeCardView : public views::WidgetDelegateView {
+class HomeCardView : public views::WidgetDelegateView,
+                     public AthenaStartPageView::Observer {
  public:
   HomeCardView(app_list::AppListViewDelegate* view_delegate,
                aura::Window* container,
                HomeCardGestureManager::Delegate* gesture_delegate)
       : gesture_delegate_(gesture_delegate) {
     SetLayoutManager(new views::FillLayout());
     // Ideally AppListMainView should be used here and have AthenaStartPageView
     // as its child view, so that custom pages and apps grid are available in
     // the home card.
     // TODO(mukai): make it so after the detailed UI has been fixed.
     main_view_ = new AthenaStartPageView(view_delegate);
+    main_view_->AddObserver(this);
     AddChildView(main_view_);
   }
 
+  virtual ~HomeCardView() { main_view_->RemoveObserver(this); }
+
   void SetStateProgress(HomeCard::State from_state,
                         HomeCard::State to_state,
                         float progress) {
     // TODO(mukai): not clear the focus, but simply close the virtual keyboard.
     GetFocusManager()->ClearFocus();
     if (from_state == HomeCard::VISIBLE_CENTERED)
       main_view_->SetLayoutState(1.0f - progress);
     else if (to_state == HomeCard::VISIBLE_CENTERED)
       main_view_->SetLayoutState(progress);
     UpdateShadow(true);
@@ skipping 41 matching lines @@
     wm::SetShadowType(
         GetWidget()->GetNativeWindow(),
         should_show ? wm::SHADOW_TYPE_RECTANGULAR : wm::SHADOW_TYPE_NONE);
   }
 
   // views::WidgetDelegate:
   virtual views::View* GetContentsView() override {
     return this;
   }
 
+  // AthenaStartPageView::Observer:
+  virtual void OnLayoutStateChanged(float new_state) override {
+    if (new_state == 1.0f)
+      HomeCard::Get()->SetState(HomeCard::VISIBLE_CENTERED);
+  }
+
   AthenaStartPageView* main_view_;
   scoped_ptr<HomeCardGestureManager> gesture_manager_;
   HomeCardGestureManager::Delegate* gesture_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(HomeCardView);
 };
 
 HomeCardImpl::HomeCardImpl(scoped_ptr<AppModelBuilder> model_builder,
                            scoped_ptr<SearchControllerFactory> search_factory)
     : model_builder_(model_builder.Pass()),
@@ skipping 206 matching lines @@
   instance = NULL;
 }
 
 // static
 HomeCard* HomeCard::Get() {
   DCHECK(instance);
   return instance;
 }
 
 }  // namespace athena