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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 CHROME_BROWSER_UI_WEBUI_NTP_ANDROID_MANAGED_BOOKMARKS_SHIM_H_
#define CHROME_BROWSER_UI_WEBUI_NTP_ANDROID_MANAGED_BOOKMARKS_SHIM_H_
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "base/observer_list.h"
#include "base/prefs/pref_change_registrar.h"
class BookmarkNode;
class PrefService;
// A shim that lives on top of a BookmarkModel that allows the injection of
// policy managed bookmarks without submitting changes to the user configured
// bookmark model.
// Policy managed bookmarks live on a subfolder of the Mobile bookmarks called
// "Managed bookmarks" that isn't editable by the user.
class ManagedBookmarksShim {
public:
class Observer {
public:
virtual ~Observer() {}
virtual void OnManagedBookmarksChanged() = 0;
};
// Will read managed bookmarks from the given PrefService. The preference
// that contains the bookmarks is managed by policy, and is updated when the
// policy changes.
explicit ManagedBookmarksShim(PrefService* prefs);
~ManagedBookmarksShim();
void AddObserver(Observer* observer);
void RemoveObserver(Observer* observer);
// Returns true if there exists at least one managed bookmark.
bool HasManagedBookmarks() const;
bool IsManagedBookmark(const BookmarkNode* node) const;
const BookmarkNode* GetManagedBookmarksRoot() const;
const BookmarkNode* GetNodeByID(int64 id) const;
const BookmarkNode* GetParentOf(const BookmarkNode* node) const;
private:
void Reload();
PrefService* prefs_;
PrefChangeRegistrar registrar_;
scoped_ptr<BookmarkNode> root_;
ObserverList<Observer> observers_;
DISALLOW_COPY_AND_ASSIGN(ManagedBookmarksShim);
};
#endif // CHROME_BROWSER_UI_WEBUI_NTP_ANDROID_MANAGED_BOOKMARKS_SHIM_H_
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