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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_BOOKMARK_DRAG_DATA
#define CHROME_BROWSER_BOOKMARK_DRAG_DATA
#include <vector>
#include "chrome/browser/history/history.h"
#include "googleurl/src/gurl.h"
class BookmarkBarModel;
class BookmarkBarNode;
class OSExchangeData;
class Pickle;
// BookmarkDragData is used by the bookmark bar to represent a dragged
// URL or starred group on the clipboard during drag and drop.
//
// Typical usage when writing data for a drag is:
// BookmarkDragData data(node_user_is_dragging);
// data.profile_id = profile_id;
// data.Write(os_exchange_data_for_drag);
//
// Typical usage to read is:
// BookmarkDragData data;
// if (data.Read(os_exchange_data))
// // data is valid
struct BookmarkDragData {
BookmarkDragData();
// Created a BookmarkDragData populated from node.
explicit BookmarkDragData(BookmarkBarNode* node);
// Writes this BookmarkDragData to data. If BookmarkDragData is a URL,
// this writes out the URL and URL title clipboard data as well.
void Write(OSExchangeData* data) const;
// Restores this data from the clipboard, returning true on success.
bool Read(const OSExchangeData& data);
// Returns the node represented by this drag data from root. If the
// path can not be found, NULL is returned.
//
// This is only valid for groups.
BookmarkBarNode* BookmarkDragData::GetNode(BookmarkBarModel* model) const;
// If true, this entry represents a StarredEntry of type URL.
bool is_url;
// ID of the profile we originated from.
std::wstring profile_id;
// The URL, only valid if is_url is true.
GURL url;
// Title of the entry
std::wstring title;
// Children, only used for non-URL nodes.
std::vector<BookmarkDragData> children;
// If true our data is valid.
bool is_valid;
private:
// Writes the data to a Pickle.
void WriteToPickle(Pickle* pickle) const;
bool ReadFromPickle(Pickle* pickle, void** iterator);
// Adds to children an entry for each child of node.
void AddChildren(BookmarkBarNode* node);
// If we're a group, this is our id.
history::UIStarID group_id_;
};
#endif // CHROME_BROWSER_BOOKMARK_DRAG_DATA
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