1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License
15 */
16
17package com.android.contacts.editor;
18
19import android.app.AlertDialog;
20import android.app.Dialog;
21import android.app.DialogFragment;
22import android.app.Fragment;
23import android.content.DialogInterface;
24import android.os.Bundle;
25
26import com.android.contacts.R;
27
28/**
29 * Shows a dialog asking the user whether to split the contact. The result is passed back
30 * to the Fragment that is configured by {@link Fragment#setTargetFragment(Fragment, int)}, which
31 * has to implement {@link SplitContactConfirmationDialogFragment.Listener}.
32 * Does not split the contact itself.
33 */
34public class SplitContactConfirmationDialogFragment extends DialogFragment {
35
36    private static final String ARG_HAS_PENDING_CHANGES = "hasPendingChanges";
37    public static final String TAG = "SplitConfirmation";
38
39    /**
40     * Callbacks for the dialog host.
41     */
42    public interface Listener {
43
44        /**
45         * Invoked after the user has confirmed that they want to proceed with the split.
46         *
47         * @param hasPendingChanges whether there are unsaved changes in the underlying contact
48         *         that should be saved before the split.
49         */
50        void onSplitContactConfirmed(boolean hasPendingChanges);
51
52        /**
53         * Invoked if the user has canceled or dismissed the dialog without making a choice.
54         */
55        void onSplitContactCanceled();
56    }
57
58    public static void show(ContactEditorFragment fragment, boolean hasPendingChanges) {
59        final Bundle args = new Bundle();
60        args.putBoolean(ARG_HAS_PENDING_CHANGES, hasPendingChanges);
61
62        final SplitContactConfirmationDialogFragment dialog = new
63                SplitContactConfirmationDialogFragment();
64        dialog.setTargetFragment(fragment, 0);
65        dialog.setArguments(args);
66        dialog.show(fragment.getFragmentManager(), "splitContact");
67    }
68
69    private boolean mHasPendingChanges;
70
71    @Override
72    public void onCreate(Bundle savedInstanceState) {
73        super.onCreate(savedInstanceState);
74        mHasPendingChanges = getArguments() != null
75                && getArguments().getBoolean(ARG_HAS_PENDING_CHANGES);
76    }
77
78    @Override
79    public Dialog onCreateDialog(Bundle savedInstanceState) {
80        final AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
81        builder.setMessage(mHasPendingChanges
82                ? R.string.splitConfirmationWithPendingChanges
83                : R.string.splitConfirmation);
84        builder.setPositiveButton(mHasPendingChanges
85                ? R.string.splitConfirmationWithPendingChanges_positive_button
86                : R.string.splitConfirmation_positive_button,
87                new DialogInterface.OnClickListener() {
88                    @Override
89                    public void onClick(DialogInterface dialog, int which) {
90                        getListener().onSplitContactConfirmed(mHasPendingChanges);
91                    }
92                });
93        builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
94            @Override
95            public void onClick(DialogInterface dialog, int which) {
96                onCancel(dialog);
97            }
98        });
99        builder.setCancelable(false);
100        return builder.create();
101    }
102
103    private Listener getListener() {
104        return getTargetFragment() == null
105                ? (Listener) getActivity()
106                : (Listener) getTargetFragment();
107    }
108
109    @Override
110    public void onCancel(DialogInterface dialog) {
111        super.onCancel(dialog);
112        getListener().onSplitContactCanceled();
113    }
114}
115