| /* |
| * Copyright (C) 2012 Google Inc. |
| * Licensed to The Android Open Source Project. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.mail.ui; |
| |
| import android.database.DataSetObserver; |
| |
| import com.android.mail.providers.RecentFolderObserver; |
| |
| /** |
| * Controller that can provide recent folders and notify on changes to recent folders. |
| */ |
| public interface RecentFolderController { |
| /** |
| * Registers to receive changes to the recent folders, and obtains the current recent folders. |
| */ |
| void registerRecentFolderObserver(DataSetObserver observer); |
| |
| /** |
| * Removes a listener from receiving recent folder changes. |
| */ |
| void unregisterRecentFolderObserver(DataSetObserver observer); |
| |
| /** |
| * Returns the current recent folders. Instead of calling this method, |
| * consider registering for account changes using |
| * {@link RecentFolderObserver#initialize(RecentFolderController)}, which not only provides the |
| * current account, but also updates to the account, in case of settings changes. |
| */ |
| RecentFolderList getRecentFolders(); |
| |
| } |