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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_ANDROID_BACKGROUND_TAB_MANAGER_H_
#define CHROME_BROWSER_ANDROID_BACKGROUND_TAB_MANAGER_H_
#include <memory>
#include <vector>
#include "base/memory/raw_ptr.h"
#include "base/memory/singleton.h"
#include "content/public/browser/web_contents_user_data.h"
class Profile;
namespace history {
struct HistoryAddPageArgs;
class HistoryService;
}
namespace chrome {
namespace android {
class BackgroundTabManager;
// BackgroundTabManager is responsible for storing state backgrounded tabs.
// State managed include :
// - The Profile that is associated with the content.
// - Browser History which is cached when the tab is hidden and committed when
// shown.
// All methods should be called on the UI thread.
class BackgroundTabManager
: public content::WebContentsUserData<BackgroundTabManager> {
public:
BackgroundTabManager(content::WebContents* web_contents, Profile* profile);
~BackgroundTabManager() override;
// Called when the Tab is no longer a background tab. Unregisters the
// UserData.
void UnregisterBackgroundTab();
// Retrieves the profile that was stored during background tab registration.
Profile* GetProfile() const;
// Cache a single history item, to be either used by CommitHistory() or
// discarded by UnregisterBackgroundTab().
void CacheHistory(const history::HistoryAddPageArgs& history_item);
// Commit the history that was previously cached for this tab. Committing
// history clears it from the local cache.
void CommitHistory(history::HistoryService* history_service);
private:
friend class content::WebContentsUserData<BackgroundTabManager>;
raw_ptr<Profile> profile_;
std::vector<history::HistoryAddPageArgs> cached_history_;
WEB_CONTENTS_USER_DATA_KEY_DECL();
};
} // namespace android
} // namespace chrome
#endif // CHROME_BROWSER_ANDROID_BACKGROUND_TAB_MANAGER_H_
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