Changes HomeCard to fullscreen from bottom when typing a query.

athena/home/athena_start_page_view.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/athena_start_page_view.h"
 
 #include "athena/home/home_card_constants.h"
 #include "athena/system/public/system_ui.h"
 #include "base/bind.h"
 #include "base/strings/string_util.h"
@@ skipping 226 matching lines @@
 
 AthenaStartPageView::~AthenaStartPageView() {}
 
 void AthenaStartPageView::RequestFocusOnSearchBox() {
   search_box_view_->search_box()->RequestFocus();
 }
 
 void AthenaStartPageView::SetLayoutState(float layout_state) {
   layout_state_ = layout_state;
   Layout();
+  FOR_EACH_OBSERVER(Observer, observers_, OnLayoutStateChanged(layout_state));
 }
 
 void AthenaStartPageView::SetLayoutStateWithAnimation(
     float layout_state,
     gfx::Tween::Type tween_type) {
   ui::ScopedLayerAnimationSettings system_info(
       system_info_view_->layer()->GetAnimator());
   ui::ScopedLayerAnimationSettings logo(logo_->layer()->GetAnimator());
   ui::ScopedLayerAnimationSettings search_box(
       search_box_container_->layer()->GetAnimator());
   ui::ScopedLayerAnimationSettings icons(
       app_icon_container_->layer()->GetAnimator());
   ui::ScopedLayerAnimationSettings controls(
       control_icon_container_->layer()->GetAnimator());
 
   system_info.SetTweenType(tween_type);
   logo.SetTweenType(tween_type);
   search_box.SetTweenType(tween_type);
   icons.SetTweenType(tween_type);
   controls.SetTweenType(tween_type);
 
   SetLayoutState(layout_state);
 }
 
+void AthenaStartPageView::AddObserver(AthenaStartPageView::Observer* observer) {
+  observers_.AddObserver(observer);
+}
+
+void AthenaStartPageView::RemoveObserver(
+    AthenaStartPageView::Observer* observer) {
+  observers_.RemoveObserver(observer);
+}
+
 AthenaStartPageView::LayoutData AthenaStartPageView::CreateBottomBounds(
     int width) {
   LayoutData state;
   state.icons.set_size(app_icon_container_->size());
   state.icons.set_x(kIconMargin);
   state.icons.set_y(kIconMargin);
 
   state.controls.set_size(control_icon_container_->size());
   state.controls.set_x(width - kIconMargin - state.controls.width());
   state.controls.set_y(kIconMargin);
@@ skipping 31 matching lines @@
   state.logo_opacity = 1.0f;
   state.background_opacity = 1.0f;
   return state;
 }
 
 void AthenaStartPageView::LayoutSearchResults(bool should_show_search_results) {
   if (should_show_search_results ==
       search_results_view_->layer()->GetTargetVisibility()) {
     return;
   }
-  if (GetContentsBounds().height() <= kHomeCardHeight) {
-    search_results_view_->SetVisible(false);
-    Layout();
-    return;
-  }
+  if (should_show_search_results && layout_state_ != 1.0f)
+    SetLayoutState(1.0f);
 
   gfx::Rect search_box_bounds = search_box_container_->bounds();
   if (!search_results_view_->visible()) {
     search_results_view_->SetVisible(true);
     search_results_view_->SetBounds(
         search_box_bounds.x(), search_box_bounds.bottom(),
         search_box_bounds.width(), 0);
   }
   logo_->SetVisible(true);
 
@@ skipping 95 matching lines @@
   base::TrimWhitespace(
       delegate_->GetModel()->search_box()->text(), base::TRIM_ALL, &query);
 
   if (!query.empty())
     search_results_view_->SetSelectedIndex(0);
 
   LayoutSearchResults(!query.empty());
 }
 
 }  // namespace athena