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      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "ui/app_list/views/apps_container_view.h"
      6 
      7 #include <algorithm>
      8 
      9 #include "ui/app_list/app_list_constants.h"
     10 #include "ui/app_list/app_list_folder_item.h"
     11 #include "ui/app_list/pagination_model.h"
     12 #include "ui/app_list/views/app_list_folder_view.h"
     13 #include "ui/app_list/views/app_list_main_view.h"
     14 #include "ui/app_list/views/apps_grid_view.h"
     15 #include "ui/events/event.h"
     16 
     17 namespace app_list {
     18 
     19 AppsContainerView::AppsContainerView(AppListMainView* app_list_main_view,
     20                                      PaginationModel* pagination_model,
     21                                      AppListModel* model,
     22                                      content::WebContents* start_page_contents)
     23     : model_(model),
     24       show_state_(SHOW_APPS) {
     25   apps_grid_view_ = new AppsGridView(
     26       app_list_main_view, pagination_model, start_page_contents);
     27   apps_grid_view_->SetLayout(kPreferredIconDimension,
     28                              kPreferredCols,
     29                              kPreferredRows);
     30   AddChildView(apps_grid_view_);
     31 
     32   app_list_folder_view_ = new AppListFolderView(
     33       this,
     34       model,
     35       app_list_main_view,
     36       start_page_contents);
     37   AddChildView(app_list_folder_view_);
     38 
     39   apps_grid_view_->SetModel(model_);
     40   apps_grid_view_->SetItemList(model_->item_list());
     41 }
     42 
     43 AppsContainerView::~AppsContainerView() {
     44 }
     45 
     46 void AppsContainerView::ShowActiveFolder(AppListFolderItem* folder_item) {
     47   app_list_folder_view_->SetAppListFolderItem(folder_item);
     48   SetShowState(SHOW_ACTIVE_FOLDER);
     49 }
     50 
     51 void AppsContainerView::ShowApps() {
     52   SetShowState(SHOW_APPS);
     53 }
     54 
     55 gfx::Size AppsContainerView::GetPreferredSize() {
     56   const gfx::Size grid_size = apps_grid_view_->GetPreferredSize();
     57   const gfx::Size folder_view_size = app_list_folder_view_->GetPreferredSize();
     58 
     59   int width = std::max(grid_size.width(), folder_view_size.width());
     60   int height = std::max(grid_size.height(), folder_view_size.height());
     61   return gfx::Size(width, height);
     62 }
     63 
     64 void AppsContainerView::Layout() {
     65   gfx::Rect rect(GetContentsBounds());
     66   if (rect.IsEmpty())
     67     return;
     68 
     69   switch (show_state_) {
     70     case SHOW_APPS:
     71       app_list_folder_view_->SetVisible(false);
     72       apps_grid_view_->SetBoundsRect(rect);
     73       apps_grid_view_->SetVisible(true);
     74       break;
     75     case SHOW_ACTIVE_FOLDER:
     76       apps_grid_view_->SetVisible(false);
     77       app_list_folder_view_->SetBoundsRect(rect);
     78       app_list_folder_view_->SetVisible(true);
     79       break;
     80     default:
     81       NOTREACHED();
     82   }
     83 }
     84 
     85 bool AppsContainerView::OnKeyPressed(const ui::KeyEvent& event) {
     86   if (show_state_ == SHOW_APPS)
     87     return apps_grid_view_->OnKeyPressed(event);
     88   else
     89     return app_list_folder_view_->OnKeyPressed(event);
     90 }
     91 
     92 void AppsContainerView::SetShowState(ShowState show_state) {
     93   if (show_state_ == show_state)
     94     return;
     95 
     96   show_state_ = show_state;
     97   Layout();
     98 }
     99 
    100 }  // namespace app_list
    101