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      1 // Copyright 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 package org.chromium.ui.picker;
      6 
      7 import android.app.AlertDialog;
      8 import android.content.Context;
      9 import android.content.DialogInterface;
     10 import android.content.DialogInterface.OnClickListener;
     11 import android.text.format.Time;
     12 import android.view.LayoutInflater;
     13 import android.view.View;
     14 import android.widget.DatePicker;
     15 import android.widget.DatePicker.OnDateChangedListener;
     16 import android.widget.TimePicker;
     17 import android.widget.TimePicker.OnTimeChangedListener;
     18 
     19 import org.chromium.ui.R;
     20 
     21 public class DateTimePickerDialog extends AlertDialog implements OnClickListener,
     22         OnDateChangedListener, OnTimeChangedListener {
     23     private final DatePicker mDatePicker;
     24     private final TimePicker mTimePicker;
     25     private final OnDateTimeSetListener mCallBack;
     26 
     27     private final long mMinTimeMillis;
     28     private final long mMaxTimeMillis;
     29 
     30     /**
     31      * The callback used to indicate the user is done filling in the date.
     32      */
     33     public interface OnDateTimeSetListener {
     34 
     35         /**
     36          * @param dateView The DatePicker view associated with this listener.
     37          * @param timeView The TimePicker view associated with this listener.
     38          * @param year The year that was set.
     39          * @param monthOfYear The month that was set (0-11) for compatibility
     40          *            with {@link java.util.Calendar}.
     41          * @param dayOfMonth The day of the month that was set.
     42          * @param hourOfDay The hour that was set.
     43          * @param minute The minute that was set.
     44          */
     45         void onDateTimeSet(DatePicker dateView, TimePicker timeView, int year, int monthOfYear,
     46                 int dayOfMonth, int hourOfDay, int minute);
     47     }
     48 
     49     /**
     50      * @param context The context the dialog is to run in.
     51      * @param callBack How the parent is notified that the date is set.
     52      * @param year The initial year of the dialog.
     53      * @param monthOfYear The initial month of the dialog.
     54      * @param dayOfMonth The initial day of the dialog.
     55      */
     56     public DateTimePickerDialog(Context context,
     57             OnDateTimeSetListener callBack,
     58             int year,
     59             int monthOfYear,
     60             int dayOfMonth,
     61             int hourOfDay, int minute, boolean is24HourView,
     62             double min, double max) {
     63         super(context, 0);
     64 
     65         mMinTimeMillis = (long) min;
     66         mMaxTimeMillis = (long) max;
     67 
     68         mCallBack = callBack;
     69 
     70         setButton(BUTTON_POSITIVE, context.getText(
     71                 R.string.date_picker_dialog_set), this);
     72         setButton(BUTTON_NEGATIVE, context.getText(android.R.string.cancel),
     73                 (OnClickListener) null);
     74         setIcon(0);
     75         setTitle(context.getText(R.string.date_time_picker_dialog_title));
     76 
     77         LayoutInflater inflater =
     78                 (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
     79         View view = inflater.inflate(R.layout.date_time_picker_dialog, null);
     80         setView(view);
     81         mDatePicker = (DatePicker) view.findViewById(R.id.date_picker);
     82         DateDialogNormalizer.normalize(mDatePicker, this,
     83                 year, monthOfYear, dayOfMonth, hourOfDay, minute, mMinTimeMillis, mMaxTimeMillis);
     84 
     85         mTimePicker = (TimePicker) view.findViewById(R.id.time_picker);
     86         mTimePicker.setIs24HourView(is24HourView);
     87         mTimePicker.setCurrentHour(hourOfDay);
     88         mTimePicker.setCurrentMinute(minute);
     89         mTimePicker.setOnTimeChangedListener(this);
     90         onTimeChanged(mTimePicker, mTimePicker.getCurrentHour(),
     91                 mTimePicker.getCurrentMinute());
     92     }
     93 
     94     @Override
     95     public void onClick(DialogInterface dialog, int which) {
     96         tryNotifyDateTimeSet();
     97     }
     98 
     99     private void tryNotifyDateTimeSet() {
    100         if (mCallBack != null) {
    101             mDatePicker.clearFocus();
    102             mCallBack.onDateTimeSet(mDatePicker, mTimePicker, mDatePicker.getYear(),
    103                     mDatePicker.getMonth(), mDatePicker.getDayOfMonth(),
    104                     mTimePicker.getCurrentHour(), mTimePicker.getCurrentMinute());
    105         }
    106     }
    107 
    108     @Override
    109     public void onDateChanged(DatePicker view, int year,
    110             int month, int day) {
    111         // Signal a time change so the max/min checks can be applied.
    112         if (mTimePicker != null) {
    113             onTimeChanged(mTimePicker, mTimePicker.getCurrentHour(),
    114                     mTimePicker.getCurrentMinute());
    115         }
    116     }
    117 
    118     @Override
    119     public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
    120         Time time = new Time();
    121         time.set(0, mTimePicker.getCurrentMinute(),
    122                 mTimePicker.getCurrentHour(), mDatePicker.getDayOfMonth(),
    123                 mDatePicker.getMonth(), mDatePicker.getYear());
    124 
    125         if (time.toMillis(true) < mMinTimeMillis) {
    126             time.set(mMinTimeMillis);
    127         } else if (time.toMillis(true) > mMaxTimeMillis) {
    128             time.set(mMaxTimeMillis);
    129         }
    130         mTimePicker.setCurrentHour(time.hour);
    131         mTimePicker.setCurrentMinute(time.minute);
    132     }
    133 
    134     /**
    135      * Sets the current date.
    136      *
    137      * @param year The date year.
    138      * @param monthOfYear The date month.
    139      * @param dayOfMonth The date day of month.
    140      */
    141     public void updateDateTime(int year, int monthOfYear, int dayOfMonth,
    142             int hourOfDay, int minutOfHour) {
    143         mDatePicker.updateDate(year, monthOfYear, dayOfMonth);
    144         mTimePicker.setCurrentHour(hourOfDay);
    145         mTimePicker.setCurrentMinute(minutOfHour);
    146     }
    147 }
    148