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// Copyright 2022 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_HISTORICAL_TAB_SAVER_H_
#define CHROME_BROWSER_ANDROID_HISTORICAL_TAB_SAVER_H_
#include <memory>
#include "base/memory/raw_ptr.h"
#include "chrome/browser/tab/web_contents_state.h"
class TabAndroid;
namespace content {
class WebContents;
} // namespace content
namespace historical_tab_saver {
// A wrapper to manage a web contents of a possibly frozen tab.
class ScopedWebContents {
public:
// Returns a wrapped WebContents for `tab`. If the tab has a live web contents
// it will be used. If one does not exist (e.g. the tab is frozen) then a
// temporary one will be created from the frozen tab's WebContentsState. If
// the WebContents was created from a frozen tab it will be destroyed with the
// returned object.
static std::unique_ptr<ScopedWebContents> CreateForTab(
TabAndroid* tab,
const WebContentsStateByteBuffer* webContentsStateByteBuffer);
~ScopedWebContents();
ScopedWebContents(const ScopedWebContents&) = delete;
ScopedWebContents& operator=(const ScopedWebContents&) = delete;
explicit ScopedWebContents(content::WebContents* unowned_web_contents);
explicit ScopedWebContents(
std::unique_ptr<content::WebContents> owned_web_contents);
content::WebContents* web_contents() const;
private:
raw_ptr<content::WebContents> unowned_web_contents_;
std::unique_ptr<content::WebContents> owned_web_contents_;
};
} // namespace historical_tab_saver
#endif // CHROME_BROWSER_ANDROID_HISTORICAL_TAB_SAVER_H_
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