Add Hide and Show to the app list SearchBoxView.

ui/app_list/views/app_list_main_view.cc

 // Copyright 2013 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 "ui/app_list/views/app_list_main_view.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/files/file_path.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_util.h"
 #include "ui/app_list/app_list_constants.h"
 #include "ui/app_list/app_list_folder_item.h"
 #include "ui/app_list/app_list_item.h"
 #include "ui/app_list/app_list_model.h"
 #include "ui/app_list/app_list_switches.h"
 #include "ui/app_list/app_list_view_delegate.h"
 #include "ui/app_list/pagination_model.h"
 #include "ui/app_list/search_box_model.h"
 #include "ui/app_list/views/app_list_item_view.h"
+#include "ui/app_list/views/app_list_view.h"
 #include "ui/app_list/views/contents_switcher_view.h"
 #include "ui/app_list/views/contents_view.h"
 #include "ui/app_list/views/search_box_view.h"
 #include "ui/views/controls/textfield/textfield.h"
 #include "ui/views/layout/box_layout.h"
 #include "ui/views/widget/widget.h"
 
 namespace app_list {
 
 namespace {
@@ skipping 39 matching lines @@
 
   AppListMainView* owner_;
   AppListItem* item_;
 
   DISALLOW_COPY_AND_ASSIGN(IconLoader);
 };
 
 ////////////////////////////////////////////////////////////////////////////////
 // AppListMainView:
 
-AppListMainView::AppListMainView(AppListViewDelegate* delegate,
+AppListMainView::AppListMainView(AppListView* app_list_view,
+                                 AppListViewDelegate* delegate,
                                  PaginationModel* pagination_model,
                                  gfx::NativeView parent)
     : delegate_(delegate),
       pagination_model_(pagination_model),
       model_(delegate->GetModel()),
+      app_list_view_(app_list_view),
       search_box_view_(NULL),
       contents_view_(NULL),
       weak_ptr_factory_(this) {
   // Starts icon loading early.
   PreloadIcons(parent);
 
   SetLayoutManager(new views::BoxLayout(views::BoxLayout::kVertical,
                                         kInnerPadding,
                                         kInnerPadding,
                                         kInnerPadding));
@@ skipping 125 matching lines @@
   TrimWhitespace(model_->search_box()->text(), TRIM_ALL, &query);
   bool should_show_search = !query.empty();
   contents_view_->ShowSearchResults(should_show_search);
 
   if (should_show_search)
     delegate_->StartSearch();
   else
     delegate_->StopSearch();
 }
 
+void AppListMainView::SearchBoxVisibilityChanged(SearchBoxView* sender) {
+  // Repaint the AppListView's background which will repaint the background for
+  // the search box.
+  if (app_list_view_)
+    app_list_view_->RepaintBackground();
+}
+
 void AppListMainView::OpenResult(SearchResult* result,
                                  bool auto_launch,
                                  int event_flags) {
   delegate_->OpenSearchResult(result, auto_launch, event_flags);
 }
 
 void AppListMainView::InvokeResultAction(SearchResult* result,
                                          int action_index,
                                          int event_flags) {
   delegate_->InvokeSearchResultAction(result, action_index, event_flags);
 }
 
 void AppListMainView::OnResultInstalled(SearchResult* result) {
   // Clears the search to show the apps grid. The last installed app
   // should be highlighted and made visible already.
   search_box_view_->ClearSearch();
 }
 
 void AppListMainView::OnResultUninstalled(SearchResult* result) {
   // Resubmit the query via a posted task so that all observers for the
   // uninstall notification are notified.
   base::MessageLoop::current()->PostTask(
       FROM_HERE,
       base::Bind(&AppListMainView::QueryChanged,
                  weak_ptr_factory_.GetWeakPtr(),
                  search_box_view_));
 }
 
 }  // namespace app_list