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// Copyright (c) 2016 Marshall A. Greenblatt. Portions copyright (c) 2011

// Google Inc. All rights reserved.

//

// Redistribution and use in source and binary forms, with or without

// modification, are permitted provided that the following conditions are

// met:

//

// * Redistributions of source code must retain the above copyright

// notice, this list of conditions and the following disclaimer.

// * Redistributions in binary form must reproduce the above

// copyright notice, this list of conditions and the following disclaimer

// in the documentation and/or other materials provided with the

// distribution.

// * Neither the name of Google Inc. nor the name Chromium Embedded

// Framework nor the names of its contributors may be used to endorse

// or promote products derived from this software without specific prior

// written permission.

//

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

//

// ---------------------------------------------------------------------------

//

// The contents of this file are only available to applications that link

// against the libcef_dll_wrapper target.

//

#ifndef CEF_INCLUDE_SCOPED_TEMP_DIR_H_

#define CEF_INCLUDE_SCOPED_TEMP_DIR_H_

#pragma once

#include "include/base/cef_build.h"

#include "include/base/cef_macros.h"

#include "include/cef_base.h"

///

// An object representing a temporary / scratch directory that should be cleaned

// up (recursively) when this object goes out of scope. Note that since

// deletion occurs during the destructor, no further error handling is possible

// if the directory fails to be deleted. As a result, deletion is not

// guaranteed by this class.

//

// Multiple calls to the methods which establish a temporary directory

// (CreateUniqueTempDir, CreateUniqueTempDirUnderPath, and Set) must have

// intervening calls to Delete or Take, or the calls will fail.

///

class CefScopedTempDir {

public:

///

// No directory is owned/created initially.

///

CefScopedTempDir();

///

// Recursively delete path.

///

~CefScopedTempDir();

///

// Creates a unique directory in TempPath, and takes ownership of it.

// See file_util::CreateNewTemporaryDirectory.

///

bool CreateUniqueTempDir() WARN_UNUSED_RESULT;

///

// Creates a unique directory under a given path, and takes ownership of it.

///

bool CreateUniqueTempDirUnderPath(const CefString& path) WARN_UNUSED_RESULT;

///

// Takes ownership of directory at |path|, creating it if necessary.

// Don't call multiple times unless Take() has been called first.

///

bool Set(const CefString& path) WARN_UNUSED_RESULT;

///

// Deletes the temporary directory wrapped by this object.

///

bool Delete() WARN_UNUSED_RESULT;

///

// Caller takes ownership of the temporary directory so it won't be destroyed

// when this object goes out of scope.

///

CefString Take();

///

// Returns the path to the created directory. Call one of the

// CreateUniqueTempDir* methods before getting the path.

///

const CefString& GetPath() const;

///

// Returns true if path_ is empty.

///

bool IsEmpty() const;

///

// Returns true if path_ is non-empty and exists.

///

bool IsValid() const;

private:

CefString path_;

DISALLOW_COPY_AND_ASSIGN(CefScopedTempDir);

};

#endif // CEF_INCLUDE_SCOPED_TEMP_DIR_H_