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      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 
     17 package com.android.contacts.editor;
     18 
     19 import android.app.AlertDialog;
     20 import android.app.Dialog;
     21 import android.app.DialogFragment;
     22 import android.app.Fragment;
     23 import android.content.DialogInterface;
     24 import android.os.Bundle;
     25 
     26 import 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  */
     34 public 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