Add a SearchResultPageView to the experimental app list.

ui/app_list/views/search_result_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 "ui/app_list/views/search_result_page_view.h"
+
+#include "ui/app_list/app_list_view_delegate.h"
+#include "ui/app_list/search_result.h"
+#include "ui/app_list/views/app_list_main_view.h"
+#include "ui/app_list/views/search_box_view.h"
+#include "ui/app_list/views/search_result_list_view.h"
+#include "ui/app_list/views/search_result_tile_item_view.h"
+#include "ui/views/layout/box_layout.h"
+#include "ui/views/widget/widget.h"
+
+namespace app_list {
+
+namespace {
+
+const int kGroupSpacing = 20;
+
+// Tile container constants.
+const size_t kNumSearchResultTiles = 5;
+const int kTileSpacing = 10;
+
+}  // namespace
+
+SearchResultPageView::SearchResultPageView(AppListMainView* app_list_main_view,
+                                           AppListViewDelegate* view_delegate)
+    : results_view_(
+          new SearchResultListView(app_list_main_view, view_delegate)),
+      tiles_container_(new views::View) {
+  SetLayoutManager(
+      new views::BoxLayout(views::BoxLayout::kVertical, 0, 0, kGroupSpacing));
+
+  // The view containing the search results.
+  AddChildView(results_view_);
+
+  // The view containing the start page tiles.
+  InitTilesContainer();
+  AddChildView(tiles_container_);
+
+  AppListModel::SearchResults* model = view_delegate->GetModel()->results();
+  SetResults(model);
+  results_view_->SetResults(model);
+}
+
+SearchResultPageView::~SearchResultPageView() {
+}
+
+void SearchResultPageView::InitTilesContainer() {
+  views::BoxLayout* tiles_layout_manager =
+      new views::BoxLayout(views::BoxLayout::kHorizontal, 0, 0, kTileSpacing);
+  tiles_layout_manager->set_main_axis_alignment(
+      views::BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER);
+  tiles_container_->SetLayoutManager(tiles_layout_manager);

[Matt Giuca, 2014/11/04 07:44:37]

nit: Feels cramped; make some blank lines.

[calamity, 2014/11/06 04:55:01]

Done.

+  for (size_t i = 0; i < kNumSearchResultTiles; ++i) {
+    SearchResultTileItemView* tile_item = new SearchResultTileItemView();
+    tiles_container_->AddChildView(tile_item);
+    tile_views_.push_back(tile_item);
+  }
+}
+
+bool SearchResultPageView::OnKeyPressed(const ui::KeyEvent& event) {
+  return results_view_->OnKeyPressed(event);
+}
+
+void SearchResultPageView::Update() {
+  results_view_->SetSelectedIndex(0);
+  std::vector<SearchResult*> display_results =
+      AppListModel::FilterSearchResultsByDisplayType(
+          results(), SearchResult::DISPLAY_TILE, kNumSearchResultTiles);

[Matt Giuca, 2014/11/04 07:44:37]

nit: ditto

[calamity, 2014/11/06 04:55:01]

Done.

+  for (size_t i = 0; i < kNumSearchResultTiles; ++i) {
+    SearchResult* item = NULL;

[Matt Giuca, 2014/11/04 07:44:37]

nullptr

[calamity, 2014/11/06 04:55:01]

Done.

+    if (i < display_results.size())
+      item = display_results[i];

[Matt Giuca, 2014/11/04 07:44:37]

I think this can read nicer as:
SearchResult* item = i < display_results.size() ? display_results[i] : nullptr;

[calamity, 2014/11/06 04:55:01]

Done.

+    tile_views_[i]->SetSearchResult(item);
+  }
+  tiles_container_->Layout();
+  Layout();
+}
+
+}  // namespace app_list