1 /* 2 * Copyright (C) 2012 Google Inc. 3 * Licensed to The Android Open Source Project. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package com.android.mail.ui; 19 20 import android.app.AlertDialog; 21 import android.app.LoaderManager; 22 import android.content.Context; 23 import android.content.CursorLoader; 24 import android.content.DialogInterface; 25 import android.content.Loader; 26 import android.database.Cursor; 27 import android.net.Uri; 28 import android.os.Bundle; 29 30 import com.android.mail.R; 31 import com.android.mail.providers.Folder; 32 import com.android.mail.providers.UIProvider; 33 import com.android.mail.ui.FolderSelectorAdapter.FolderRow; 34 import com.android.mail.utils.Utils; 35 36 import java.util.ArrayList; 37 38 /** 39 * Displays a folder selection dialog for the conversation provided. It allows 40 * the user to switch a conversation from one folder to another. 41 */ 42 public class SingleFolderSelectionDialog extends FolderSelectionDialog { SingleFolderSelectionDialog()43 public SingleFolderSelectionDialog() {} 44 45 private static final int FOLDER_LOADER_ID = 0; 46 private static final String FOLDER_QUERY_URI_TAG = "folderQueryUri"; 47 48 @Override onCreate(Bundle savedInstanceState)49 public void onCreate(Bundle savedInstanceState) { 50 super.onCreate(savedInstanceState); 51 52 mTitleId = R.string.move_to_selection_dialog_title; 53 54 final Bundle args = new Bundle(1); 55 args.putParcelable(FOLDER_QUERY_URI_TAG, !Utils.isEmpty(mAccount.fullFolderListUri) ? 56 mAccount.fullFolderListUri : mAccount.folderListUri); 57 final Context loaderContext = getActivity().getApplicationContext(); 58 getLoaderManager().initLoader(FOLDER_LOADER_ID, args, 59 new LoaderManager.LoaderCallbacks<Cursor>() { 60 @Override 61 public Loader<Cursor> onCreateLoader(int id, Bundle args) { 62 final Uri queryUri = args.getParcelable(FOLDER_QUERY_URI_TAG); 63 return new CursorLoader(loaderContext, queryUri, 64 UIProvider.FOLDERS_PROJECTION, null, null, null); 65 } 66 67 @Override 68 public void onLoadFinished(Loader<Cursor> loader, Cursor data) { 69 final Context context = getActivity(); 70 if (data == null || context == null) { 71 return; 72 } 73 74 final AlertDialog dialog = (AlertDialog) getDialog(); 75 if (dialog == null) { 76 // This could happen if the dialog is dismissed just before the 77 // load finishes. 78 return; 79 } 80 // The number of view types changes here, so we have to reset the ListView's 81 // adapter. 82 dialog.getListView().setAdapter(null); 83 dialog.getListView().setDivider(null); 84 85 mAdapter.clearSections(); 86 87 // Create a system folder adapter and an adapter for hierarchical 88 // and user folders. If there are no folders added to either of them, 89 // do not add as a section since a 0-count adapter will result in an 90 // IndexOutOfBoundsException. 91 SystemFolderSelectorAdapter sysFolderAdapter = 92 new SystemFolderSelectorAdapter(context, data, 93 R.layout.single_folders_view, mCurrentFolder); 94 if (sysFolderAdapter.getCount() > 0) { 95 mAdapter.addSection(sysFolderAdapter); 96 } 97 98 // TODO(pwestbro): determine if we need to call filterFolders 99 // if filterFolders is not necessary, remove the method decl with one arg. 100 UserFolderHierarchicalFolderSelectorAdapter hierarchicalAdapter = 101 new UserFolderHierarchicalFolderSelectorAdapter(context, 102 AddableFolderSelectorAdapter.filterFolders(data), 103 R.layout.single_folders_view, mCurrentFolder); 104 if (hierarchicalAdapter.getCount() > 0) { 105 mAdapter.addSection(hierarchicalAdapter); 106 } 107 108 dialog.getListView().setAdapter(mAdapter); 109 } 110 111 @Override 112 public void onLoaderReset(Loader<Cursor> loader) { 113 mAdapter.clearSections(); 114 } 115 }); 116 } 117 118 @Override onListItemClick(int position)119 protected void onListItemClick(int position) { 120 final Object item = mAdapter.getItem(position); 121 if (item instanceof FolderRow) { 122 final Folder folder = ((FolderRow) item).getFolder(); 123 ArrayList<FolderOperation> ops = new ArrayList<FolderOperation>(); 124 // Remove the current folder and add the new folder. 125 ops.add(new FolderOperation(mCurrentFolder, false)); 126 ops.add(new FolderOperation(folder, true)); 127 getConversationUpdater() 128 .assignFolder(ops, mTarget, mBatch, true /* showUndo */, true /* isMoveTo */); 129 dismiss(); 130 } 131 } 132 133 @Override onClick(DialogInterface dialog, int which)134 public void onClick(DialogInterface dialog, int which) { 135 // Do nothing. 136 } 137 } 138