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// 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.
#ifndef UI_APP_LIST_VIEWS_APPS_CONTAINER_VIEW_H_
#define UI_APP_LIST_VIEWS_APPS_CONTAINER_VIEW_H_
#include <vector>
#include "ui/app_list/app_list_folder_item.h"
#include "ui/app_list/views/top_icon_animation_view.h"
#include "ui/views/view.h"
namespace app_list {
class AppsGridView;
class ApplicationDragAndDropHost;
class AppListFolderItem;
class AppListFolderView;
class AppListMainView;
class AppListModel;
class ContentsView;
class FolderBackgroundView;
// AppsContainerView contains a root level AppsGridView to render the root level
// app items, and a AppListFolderView to render the app items inside the
// active folder. Only one if them is visible to user at any time.
class AppsContainerView : public views::View,
public TopIconAnimationObserver {
public:
AppsContainerView(AppListMainView* app_list_main_view,
AppListModel* model);
virtual ~AppsContainerView();
// Shows the active folder content specified by |folder_item|.
void ShowActiveFolder(AppListFolderItem* folder_item);
// Shows the root level apps list. This is called when UI navigate back from
// a folder view with |folder_item|. If |folder_item| is NULL skips animation.
void ShowApps(AppListFolderItem* folder_item);
// Resets the app list to a state where it shows the main grid view. This is
// called when the user opens the launcher for the first time or when the user
// hides and then shows it. This is necessary because we only hide and show
// the launcher on Windows and Linux so we need to reset to a fresh state.
void ResetForShowApps();
// Sets |drag_and_drop_host_| for the current app list in both
// app_list_folder_view_ and root level apps_grid_view_.
void SetDragAndDropHostOfCurrentAppList(
ApplicationDragAndDropHost* drag_and_drop_host);
// Transits the UI from folder view to root lelve apps grid view when
// re-parenting a child item of |folder_item|.
void ReparentFolderItemTransit(AppListFolderItem* folder_item);
// Returns true if it is currently showing an active folder page.
bool IsInFolderView() const;
// views::View overrides:
virtual gfx::Size GetPreferredSize() const OVERRIDE;
virtual void Layout() OVERRIDE;
virtual bool OnKeyPressed(const ui::KeyEvent& event) OVERRIDE;
// TopIconAnimationObserver overrides:
virtual void OnTopIconAnimationsComplete() OVERRIDE;
AppsGridView* apps_grid_view() { return apps_grid_view_; }
FolderBackgroundView* folder_background_view() {
return folder_background_view_;
}
AppListFolderView* app_list_folder_view() { return app_list_folder_view_; }
private:
enum ShowState {
SHOW_NONE, // initial state
SHOW_APPS,
SHOW_ACTIVE_FOLDER,
SHOW_ITEM_REPARENT,
};
void SetShowState(ShowState show_state, bool show_apps_with_animation);
// Calculates the top item icon bounds in the active folder icon. The bounds
// is relative to AppsContainerView.
// Returns the bounds of top items' icon in sequence of top left, top right,
// bottom left, bottom right.
Rects GetTopItemIconBoundsInActiveFolder();
// Creates the transitional views for animating the top items in the folder
// when opening or closing a folder.
void CreateViewsForFolderTopItemsAnimation(
AppListFolderItem* active_folder, bool open_folder);
void PrepareToShowApps(AppListFolderItem* folder_item);
AppListModel* model_;
AppsGridView* apps_grid_view_; // Owned by views hierarchy.
AppListFolderView* app_list_folder_view_; // Owned by views hierarchy.
FolderBackgroundView* folder_background_view_; // Owned by views hierarchy.
ShowState show_state_;
// The transitional views for animating the top items in folder
// when opening or closing a folder.
std::vector<views::View*> top_icon_views_;
size_t top_icon_animation_pending_count_;
DISALLOW_COPY_AND_ASSIGN(AppsContainerView);
};
} // namespace app_list
#endif // UI_APP_LIST_VIEWS_APPS_CONTAINER_VIEW_H_
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