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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_APP_LIST_FOLDER_ITEM_H_
#define UI_APP_LIST_APP_LIST_FOLDER_ITEM_H_
#include <string>
#include <vector>
#include "ui/app_list/app_list_export.h"
#include "ui/app_list/app_list_item.h"
#include "ui/app_list/app_list_item_list_observer.h"
#include "ui/app_list/app_list_item_observer.h"
#include "ui/gfx/geometry/rect.h"
namespace app_list {
class AppListItemList;
typedef std::vector<gfx::Rect> Rects;
// AppListFolderItem implements the model/controller for folders.
class APP_LIST_EXPORT AppListFolderItem : public AppListItem,
public AppListItemListObserver,
public AppListItemObserver {
public:
// The folder type affects folder behavior.
enum FolderType {
// Default folder type.
FOLDER_TYPE_NORMAL,
// Items can not be moved to/from OEM folders in the UI.
FOLDER_TYPE_OEM
};
static const char kItemType[];
AppListFolderItem(const std::string& id, FolderType folder_type);
virtual ~AppListFolderItem();
// Updates the folder's icon.
void UpdateIcon();
// Returns the icon of one of the top items with |item_index|.
const gfx::ImageSkia& GetTopIcon(size_t item_index);
// Returns the target icon bounds for |item| to fly back to its parent folder
// icon in animation UI. If |item| is one of the top item icon, this will
// match its corresponding top item icon in the folder icon. Otherwise,
// the target icon bounds is centered at the |folder_icon_bounds| with
// the same size of the top item icon.
// The Rect returned is in the same coordinates of |folder_icon_bounds|.
gfx::Rect GetTargetIconRectInFolderForItem(
AppListItem* item, const gfx::Rect& folder_icon_bounds);
AppListItemList* item_list() { return item_list_.get(); }
const AppListItemList* item_list() const { return item_list_.get(); }
FolderType folder_type() const { return folder_type_; }
// AppListItem
virtual void Activate(int event_flags) OVERRIDE;
virtual const char* GetItemType() const OVERRIDE;
virtual ui::MenuModel* GetContextMenuModel() OVERRIDE;
virtual AppListItem* FindChildItem(const std::string& id) OVERRIDE;
virtual size_t ChildItemCount() const OVERRIDE;
virtual void OnExtensionPreferenceChanged() OVERRIDE;
virtual bool CompareForTest(const AppListItem* other) const OVERRIDE;
// Calculates the top item icons' bounds inside |folder_icon_bounds|.
// Returns the bounds of top item icons in sequence of top left, top right,
// bottom left, bottom right.
static Rects GetTopIconsBounds(const gfx::Rect& folder_icon_bounds);
// Returns an id for a new folder.
static std::string GenerateId();
private:
// AppListItemObserver
virtual void ItemIconChanged() OVERRIDE;
virtual void ItemNameChanged() OVERRIDE;
virtual void ItemHighlightedChanged() OVERRIDE;
virtual void ItemIsInstallingChanged() OVERRIDE;
virtual void ItemPercentDownloadedChanged() OVERRIDE;
// AppListItemListObserver
virtual void OnListItemAdded(size_t index, AppListItem* item) OVERRIDE;
virtual void OnListItemRemoved(size_t index,
AppListItem* item) OVERRIDE;;
virtual void OnListItemMoved(size_t from_index,
size_t to_index,
AppListItem* item) OVERRIDE;
void UpdateTopItems();
// The type of folder; may affect behavior of folder views.
const FolderType folder_type_;
// List of items in the folder.
scoped_ptr<AppListItemList> item_list_;
// Top items for generating folder icon.
std::vector<AppListItem*> top_items_;
DISALLOW_COPY_AND_ASSIGN(AppListFolderItem);
};
} // namespace app_list
#endif // UI_APP_LIST_APP_LIST_FOLDER_ITEM_H_
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