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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 CHROME_BROWSER_UI_APP_LIST_FAST_SHOW_PICKLER_H_
#define CHROME_BROWSER_UI_APP_LIST_FAST_SHOW_PICKLER_H_
#include <string>
#include "base/memory/scoped_ptr.h"
#include "base/pickle.h"
#include "ui/app_list/app_list_model.h"
// Functions for pickling/unpickling AppListModel for fast show. Fast show is
// where the app list is put on the screen using data retrieved from a cache
// before the extension system has loaded.
class FastShowPickler {
public:
// The version that this pickler understands.
static const int kVersion;
// Pickles a subset of the data in |model| that is useful for doing a fast
// show of the app list.
static scoped_ptr<Pickle> PickleAppListModelForFastShow(
app_list::AppListModel* model);
// Given a Pickle created by PickleAppListModelForFastShow(), this creates an
// AppListModel that represents it.
static scoped_ptr<app_list::AppListModel> UnpickleAppListModelForFastShow(
Pickle* pickle);
// Copies parts that are needed to show the app list quickly on startup from
// |src| to |dest|.
static void CopyOver(
app_list::AppListModel* src, app_list::AppListModel* dest);
private:
// Private static methods allow friend access to AppListItem methods.
static scoped_ptr<app_list::AppListItem> UnpickleAppListItem(
PickleIterator* it);
static bool PickleAppListItem(Pickle* pickle, app_list::AppListItem* item);
static void CopyOverItem(app_list::AppListItem* src_item,
app_list::AppListItem* dest_item);
};
#endif // CHROME_BROWSER_UI_APP_LIST_FAST_SHOW_PICKLER_H_
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