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/*
* Copyright (C) 2013 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.app.AlertDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.content.DialogInterface;
import android.os.Bundle;
import com.android.mail.R;
import com.android.mail.providers.Folder;
import com.android.mail.providers.UIProvider;
import java.lang.ref.WeakReference;
/**
* A confirmation dialog for emptying folders of all contents.
* Currently used to empty trash or spam.
*/
public class EmptyFolderDialogFragment extends DialogFragment {
public interface EmptyFolderDialogFragmentListener {
/**
* Called when the folder is emptied by the DialogFragment.
*/
void onFolderEmptied();
}
public static final String FRAGMENT_TAG = "EmptyFolderDialogFragment";
private static final String ARG_NUM_CONVERSATIONS = "numConversations";
private static final String ARG_FOLDER_TYPE = "folderType";
private WeakReference<EmptyFolderDialogFragmentListener> mListener = null;
private int mNumConversations;
private int mFolderType;
// Public no-args constructor needed for fragment re-instantiation
public EmptyFolderDialogFragment() {}
/**
* Creates a new instance of {@link EmptyFolderDialogFragment}.
* @param numConversations The number of conversations to display in the dialog.
* @param folderType The type of dialog to show. The current available options are
* {@link com.android.mail.providers.UIProvider.FolderType#TRASH} and
* {@link com.android.mail.providers.UIProvider.FolderType#SPAM}.
* @return The newly created {@link EmptyFolderDialogFragment}.
*/
public static EmptyFolderDialogFragment newInstance(
final int numConversations, final int folderType) {
final EmptyFolderDialogFragment fragment =
new EmptyFolderDialogFragment();
final Bundle args = new Bundle(2);
args.putInt(ARG_NUM_CONVERSATIONS, numConversations);
args.putInt(ARG_FOLDER_TYPE, folderType);
fragment.setArguments(args);
return fragment;
}
@Override
public Dialog onCreateDialog(final Bundle savedInstanceState) {
mNumConversations = getArguments().getInt(ARG_NUM_CONVERSATIONS);
mFolderType = getArguments().getInt(ARG_FOLDER_TYPE);
final String dialogMessage = getResources().getQuantityString(
R.plurals.empty_folder_dialog_message, mNumConversations, mNumConversations);
// Checks if we're in the spam folder, otherwise just uses trash as the default.
final int dialogTitleId = Folder.isType(mFolderType, UIProvider.FolderType.SPAM) ?
R.string.empty_spam_dialog_title : R.string.empty_trash_dialog_title;
return new AlertDialog.Builder(getActivity()).setTitle(dialogTitleId)
.setMessage(dialogMessage)
.setNegativeButton(R.string.cancel, null)
.setPositiveButton(R.string.delete, new DialogInterface.OnClickListener() {
@Override
public void onClick(final DialogInterface dialog, final int whichButton) {
if (mListener != null) {
final EmptyFolderDialogFragmentListener listener =
mListener.get();
if (listener != null) {
listener.onFolderEmptied();
}
}
}
})
.create();
}
public void setListener(final EmptyFolderDialogFragmentListener listener) {
mListener = new WeakReference<EmptyFolderDialogFragmentListener>(listener);
}
}
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