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// Copyright 2020 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_FILE_SYSTEM_ACCESS_FILE_SYSTEM_ACCESS_TAB_HELPER_H_
#define CHROME_BROWSER_FILE_SYSTEM_ACCESS_FILE_SYSTEM_ACCESS_TAB_HELPER_H_
#include "content/public/browser/web_contents_observer.h"
#include "content/public/browser/web_contents_user_data.h"
// This class keeps track of tabs as they're being created, navigated and
// destroyed, informing the permission context when an origin is navigated away
// from. This is then used by the permission context to revoke permissions when
// no top level tabs remain for an origin.
class FileSystemAccessTabHelper
: public content::WebContentsObserver,
public content::WebContentsUserData<FileSystemAccessTabHelper> {
public:
FileSystemAccessTabHelper(const FileSystemAccessTabHelper&) = delete;
FileSystemAccessTabHelper& operator=(const FileSystemAccessTabHelper&) =
delete;
~FileSystemAccessTabHelper() override;
// content::WebContentsObserver
void DidFinishNavigation(
content::NavigationHandle* navigation_handle) override;
void WebContentsDestroyed() override;
private:
explicit FileSystemAccessTabHelper(content::WebContents* web_contents);
friend class content::WebContentsUserData<FileSystemAccessTabHelper>;
WEB_CONTENTS_USER_DATA_KEY_DECL();
};
#endif // CHROME_BROWSER_FILE_SYSTEM_ACCESS_FILE_SYSTEM_ACCESS_TAB_HELPER_H_
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