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      1 /*
      2  * Copyright (C) 2012 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.deskclock;
     18 
     19 import android.app.Activity;
     20 import android.app.DialogFragment;
     21 import android.os.Bundle;
     22 import android.text.Editable;
     23 import android.text.TextUtils;
     24 import android.text.TextWatcher;
     25 import android.view.KeyEvent;
     26 import android.view.LayoutInflater;
     27 import android.view.View;
     28 import android.view.ViewGroup;
     29 import android.view.WindowManager;
     30 import android.view.inputmethod.EditorInfo;
     31 import android.widget.Button;
     32 import android.widget.EditText;
     33 import android.widget.TextView;
     34 import android.widget.TextView.OnEditorActionListener;
     35 
     36 import com.android.deskclock.provider.Alarm;
     37 import com.android.deskclock.timer.TimerObj;
     38 
     39 /**
     40  * DialogFragment to edit label.
     41  */
     42 public class LabelDialogFragment extends DialogFragment {
     43 
     44     private static final String KEY_LABEL = "label";
     45     private static final String KEY_ALARM = "alarm";
     46     private static final String KEY_TIMER = "timer";
     47     private static final String KEY_TAG = "tag";
     48 
     49     private EditText mLabelBox;
     50 
     51     public static LabelDialogFragment newInstance(Alarm alarm, String label, String tag) {
     52         final LabelDialogFragment frag = new LabelDialogFragment();
     53         Bundle args = new Bundle();
     54         args.putString(KEY_LABEL, label);
     55         args.putParcelable(KEY_ALARM, alarm);
     56         args.putString(KEY_TAG, tag);
     57         frag.setArguments(args);
     58         return frag;
     59     }
     60 
     61     public static LabelDialogFragment newInstance(TimerObj timer, String label, String tag) {
     62         final LabelDialogFragment frag = new LabelDialogFragment();
     63         Bundle args = new Bundle();
     64         args.putString(KEY_LABEL, label);
     65         args.putParcelable(KEY_TIMER, timer);
     66         args.putString(KEY_TAG, tag);
     67         frag.setArguments(args);
     68         return frag;
     69     }
     70 
     71     @Override
     72     public void onCreate(Bundle savedInstanceState) {
     73         super.onCreate(savedInstanceState);
     74         setStyle(DialogFragment.STYLE_NO_TITLE, 0);
     75     }
     76 
     77     @Override
     78     public View onCreateView(LayoutInflater inflater, ViewGroup container,
     79             Bundle savedInstanceState) {
     80         Bundle bundle = getArguments();
     81         final String label = bundle.getString(KEY_LABEL);
     82         final Alarm alarm = bundle.getParcelable(KEY_ALARM);
     83         final TimerObj timer = bundle.getParcelable(KEY_TIMER);
     84         final String tag = bundle.getString(KEY_TAG);
     85 
     86         final View view = inflater.inflate(R.layout.label_dialog, container, false);
     87 
     88         mLabelBox = (EditText) view.findViewById(R.id.labelBox);
     89         mLabelBox.setText(label);
     90         mLabelBox.setOnEditorActionListener(new OnEditorActionListener() {
     91             @Override
     92             public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
     93                 if (actionId == EditorInfo.IME_ACTION_DONE) {
     94                     set(alarm, timer, tag);
     95                     return true;
     96                 }
     97                 return false;
     98             }
     99         });
    100         mLabelBox.addTextChangedListener(new TextWatcher() {
    101             @Override
    102             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
    103             }
    104 
    105             @Override
    106             public void onTextChanged(CharSequence s, int start, int before, int count) {
    107                 setLabelBoxBackground(s == null || TextUtils.isEmpty(s));
    108             }
    109 
    110             @Override
    111             public void afterTextChanged(Editable editable) {
    112             }
    113         });
    114         setLabelBoxBackground(TextUtils.isEmpty(label));
    115 
    116         final Button cancelButton = (Button) view.findViewById(R.id.cancelButton);
    117         cancelButton.setOnClickListener(new View.OnClickListener() {
    118             @Override
    119             public void onClick(View view) {
    120                 dismiss();
    121             }
    122         });
    123 
    124         final Button setButton = (Button) view.findViewById(R.id.setButton);
    125         setButton.setOnClickListener(new View.OnClickListener() {
    126             @Override
    127             public void onClick(View view) {
    128                 set(alarm, timer, tag);
    129             }
    130         });
    131 
    132         getDialog().getWindow().setSoftInputMode(
    133                 WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
    134 
    135         return view;
    136     }
    137 
    138     private void set(Alarm alarm, TimerObj timer, String tag) {
    139         String label = mLabelBox.getText().toString();
    140         if (label.trim().length() == 0) {
    141             // Don't allow user to input label with only whitespace.
    142             label = "";
    143         }
    144 
    145         if (alarm != null) {
    146             set(alarm, tag, label);
    147         } else if (timer != null) {
    148             set(timer, tag, label);
    149         } else {
    150             LogUtils.e("No alarm or timer available.");
    151         }
    152     }
    153 
    154     private void set(Alarm alarm, String tag, String label) {
    155         final Activity activity = getActivity();
    156         // TODO just pass in a listener in newInstance()
    157         if (activity instanceof AlarmLabelDialogHandler) {
    158             ((DeskClock) getActivity()).onDialogLabelSet(alarm, label, tag);
    159         } else {
    160             LogUtils.e("Error! Activities that use LabelDialogFragment must implement "
    161                     + "AlarmLabelDialogHandler");
    162         }
    163         dismiss();
    164     }
    165 
    166     private void set(TimerObj timer, String tag, String label) {
    167         final Activity activity = getActivity();
    168         // TODO just pass in a listener in newInstance()
    169         if (activity instanceof TimerLabelDialogHandler){
    170             ((DeskClock) getActivity()).onDialogLabelSet(timer, label, tag);
    171         } else {
    172             LogUtils.e("Error! Activities that use LabelDialogFragment must implement "
    173                     + "AlarmLabelDialogHandler or TimerLabelDialogHandler");
    174         }
    175         dismiss();
    176     }
    177 
    178     private void setLabelBoxBackground(boolean emptyText) {
    179         mLabelBox.setBackgroundResource(emptyText ?
    180                 R.drawable.bg_edittext_default : R.drawable.bg_edittext_activated);
    181     }
    182 
    183     interface AlarmLabelDialogHandler {
    184         void onDialogLabelSet(Alarm alarm, String label, String tag);
    185     }
    186 
    187     interface TimerLabelDialogHandler {
    188         void onDialogLabelSet(TimerObj timer, String label, String tag);
    189     }
    190 }
    191