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// Copyright (c) 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 CONTENT_PUBLIC_COMMON_PAGE_STATE_H_
#define CONTENT_PUBLIC_COMMON_PAGE_STATE_H_
#include <string>
#include <vector>
#include "content/common/content_export.h"
class GURL;
namespace base {
class FilePath;
}
namespace content {
// The PageState class represents the information needed by the rendering
// engine to reconstruct a web page (and its tree of frames), including for
// example the URLs of the documents and the values of any form fields. This
// information is used when navigating back & forward through session history.
//
// The format of the encoded data is not exposed by the content API.
class CONTENT_EXPORT PageState {
public:
static PageState CreateFromEncodedData(const std::string& data);
static PageState CreateFromURL(const GURL& url);
static PageState CreateForTesting(
const GURL& url,
bool body_contains_password_data,
const char* optional_body_data,
const base::FilePath* optional_body_file_path);
// Creates an encoded page state from the |url|, |item_sequence_mnumber| and
// |document_sequence_number| parameters.
static PageState CreateForTestingWithSequenceNumbers(
const GURL& url,
int64_t item_sequence_number,
int64_t document_sequence_number);
PageState();
bool IsValid() const;
bool Equals(const PageState& page_state) const;
const std::string& ToEncodedData() const;
std::vector<base::FilePath> GetReferencedFiles() const;
PageState RemovePasswordData() const;
PageState RemoveScrollOffset() const;
PageState RemoveReferrer() const;
// Support DCHECK_EQ(a, b), etc.
bool operator==(const PageState& other) const { return this->Equals(other); }
bool operator!=(const PageState& other) const {
return !(this->Equals(other));
}
private:
PageState(const std::string& data);
std::string data_;
};
} // namespace content
#endif // CONTENT_PUBLIC_COMMON_PAGE_STATE_H_
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