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// Copyright 2014 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.
/*
* Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
* Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
* (http://www.torchmobile.com/)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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 CONTENT_RENDERER_HISTORY_ENTRY_H_
#define CONTENT_RENDERER_HISTORY_ENTRY_H_
#include <memory>
#include <vector>
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "content/common/content_export.h"
#include "third_party/blink/public/platform/web_url_request.h"
#include "third_party/blink/public/web/web_history_item.h"
namespace content {
class CONTENT_EXPORT HistoryEntry {
public:
class CONTENT_EXPORT HistoryNode {
public:
HistoryNode(const base::WeakPtr<HistoryEntry>& entry,
const blink::WebHistoryItem& item);
~HistoryNode();
HistoryNode* AddChild(const blink::WebHistoryItem& item);
HistoryNode* AddChild();
blink::WebHistoryItem& item() { return item_; }
void set_item(const blink::WebHistoryItem& item);
std::vector<HistoryNode*> children() const;
void RemoveChildren();
private:
// When a HistoryEntry is destroyed, it takes all its HistoryNodes with it.
// Use a WeakPtr to ensure that HistoryNodes don't try to illegally access
// a dying HistoryEntry, or do unnecessary work when the whole entry is
// being destroyed.
base::WeakPtr<HistoryEntry> entry_;
std::vector<std::unique_ptr<HistoryNode>> children_;
blink::WebHistoryItem item_;
DISALLOW_COPY_AND_ASSIGN(HistoryNode);
};
HistoryEntry(const blink::WebHistoryItem& root);
HistoryEntry();
~HistoryEntry();
const blink::WebHistoryItem& root() const { return root_->item(); }
HistoryNode* root_history_node() const { return root_.get(); }
private:
std::unique_ptr<HistoryNode> root_;
base::WeakPtrFactory<HistoryEntry> weak_ptr_factory_{this};
DISALLOW_COPY_AND_ASSIGN(HistoryEntry);
};
} // namespace content
#endif // CONTENT_RENDERER_HISTORY_ENTRY_H_
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