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// Copyright 2008, 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 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.
#ifndef CHROME_BROWSER_PAGE_STATE_H__
#define CHROME_BROWSER_PAGE_STATE_H__
#include "base/basictypes.h"
#include "base/scoped_ptr.h"
#include "base/values.h"
class GURL;
/////////////////////////////////////////////////////////////////////////////
//
// PageState
//
// PageState represents a collection of key value pairs that can be
// represented as an url or a byte array. It is used by synthetic pages such
// as the destination tab to store and parse navigation states
//
/////////////////////////////////////////////////////////////////////////////
class PageState {
public:
PageState() : state_(new DictionaryValue) {}
~PageState() {}
// Init with the provided url
void InitWithURL(const GURL& url);
// Init with the provided bytes
void InitWithBytes(const std::string& bytes);
// Return a string representing this state
void GetByteRepresentation(std::string* out) const;
// Conveniences to set and retreive an int
void SetIntProperty(const std::wstring& key, int value);
bool GetIntProperty(const std::wstring& key, int* value) const;
// Conveniences to set and retreive an int64.
void SetInt64Property(const std::wstring& key, int64 value);
bool GetInt64Property(const std::wstring& key, int64* value) const;
// Set / Get string properties
void SetProperty(const std::wstring& key, const std::wstring& value);
bool GetProperty(const std::wstring& key, std::wstring* value) const;
// Creates a copy of this page state. It is up to the caller to delete the
// returned value.
PageState* Copy() const;
private:
// our actual state collection
scoped_ptr<DictionaryValue> state_;
DISALLOW_EVIL_CONSTRUCTORS(PageState);
};
#endif // CHROME_BROWSER_PAGE_STATE_H__
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