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// Copyright (c) 2012 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 CHROME_BROWSER_UI_BOOKMARKS_RECENTLY_USED_FOLDERS_COMBO_MODEL_H_
#define CHROME_BROWSER_UI_BOOKMARKS_RECENTLY_USED_FOLDERS_COMBO_MODEL_H_
#include <vector>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/observer_list.h"
#include "components/bookmarks/browser/bookmark_model_observer.h"
#include "ui/base/models/combobox_model.h"
class BookmarkModel;
class BookmarkNode;
// Model for the combobox showing the list of folders to choose from. The
// list always contains the Bookmarks Bar, Other Bookmarks and the parent
// folder. The list also contains an extra item that shows the text
// "Choose Another Folder...".
class RecentlyUsedFoldersComboModel : public ui::ComboboxModel,
public BookmarkModelObserver {
public:
RecentlyUsedFoldersComboModel(BookmarkModel* model, const BookmarkNode* node);
virtual ~RecentlyUsedFoldersComboModel();
// Overridden from ui::ComboboxModel:
virtual int GetItemCount() const OVERRIDE;
virtual base::string16 GetItemAt(int index) OVERRIDE;
virtual bool IsItemSeparatorAt(int index) OVERRIDE;
virtual int GetDefaultIndex() const OVERRIDE;
virtual void AddObserver(ui::ComboboxModelObserver* observer) OVERRIDE;
virtual void RemoveObserver(ui::ComboboxModelObserver* observer) OVERRIDE;
// Overriden from BookmarkModelObserver:
virtual void BookmarkModelLoaded(BookmarkModel* model,
bool ids_reassigned) OVERRIDE;
virtual void BookmarkModelBeingDeleted(BookmarkModel* model) OVERRIDE;
virtual void BookmarkNodeMoved(BookmarkModel* model,
const BookmarkNode* old_parent,
int old_index,
const BookmarkNode* new_parent,
int new_index) OVERRIDE;
virtual void BookmarkNodeAdded(BookmarkModel* model,
const BookmarkNode* parent,
int index) OVERRIDE;
virtual void OnWillRemoveBookmarks(BookmarkModel* model,
const BookmarkNode* parent,
int old_index,
const BookmarkNode* node) OVERRIDE;
virtual void BookmarkNodeRemoved(BookmarkModel* model,
const BookmarkNode* parent,
int old_index,
const BookmarkNode* node,
const std::set<GURL>& removed_urls) OVERRIDE;
virtual void BookmarkNodeChanged(BookmarkModel* model,
const BookmarkNode* node) OVERRIDE;
virtual void BookmarkNodeFaviconChanged(BookmarkModel* model,
const BookmarkNode* node) OVERRIDE;
virtual void BookmarkNodeChildrenReordered(
BookmarkModel* model,
const BookmarkNode* node) OVERRIDE;
virtual void BookmarkAllUserNodesRemoved(
BookmarkModel* model,
const std::set<GURL>& removed_urls) OVERRIDE;
// If necessary this function moves |node| into the corresponding folder for
// the given |selected_index|.
void MaybeChangeParent(const BookmarkNode* node, int selected_index);
private:
// Returns the node at the specified |index|.
const BookmarkNode* GetNodeAt(int index);
// Removes |node| from |items_|. Does nothing if |node| is not in |items_|.
void RemoveNode(const BookmarkNode* node);
struct Item;
std::vector<Item> items_;
BookmarkModel* bookmark_model_;
// The index of the original parent folder.
int node_parent_index_;
ObserverList<ui::ComboboxModelObserver> observers_;
DISALLOW_COPY_AND_ASSIGN(RecentlyUsedFoldersComboModel);
};
#endif // CHROME_BROWSER_UI_BOOKMARKS_RECENTLY_USED_FOLDERS_COMBO_MODEL_H_
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