text: /*
   * Copyright (C) 2016 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.settings.datetime;
  
  import android.app.Activity;
  import android.app.AlarmManager;
  import android.app.TimePickerDialog;
  import android.content.Context;
  import android.text.TextUtils;
  import android.text.format.DateFormat;
  import android.widget.TimePicker;
  
  import androidx.preference.Preference;
  
  import com.android.settings.core.PreferenceControllerMixin;
  import com.android.settingslib.RestrictedPreference;
  import com.android.settingslib.core.AbstractPreferenceController;
  
  import java.util.Calendar;
  
  public class TimePreferenceController extends AbstractPreferenceController
          implements PreferenceControllerMixin, TimePickerDialog.OnTimeSetListener {
  
      public interface TimePreferenceHost extends UpdateTimeAndDateCallback {
          void showTimePicker();
      }
  
      public static final int DIALOG_TIMEPICKER = 1;
  
      private static final String KEY_TIME = "time";
  
      private final AutoTimePreferenceController mAutoTimePreferenceController;
      private final TimePreferenceHost mHost;
  
  
      public TimePreferenceController(Context context,
              TimePreferenceHost callback,
              AutoTimePreferenceController autoTimePreferenceController) {
          super(context);
          mHost = callback;
          mAutoTimePreferenceController = autoTimePreferenceController;
      }
  
      @Override
      public boolean isAvailable() {
          return true;
      }
  
      @Override
      public void updateState(Preference preference) {
          if (!(preference instanceof RestrictedPreference)) {
              return;
          }
          final Calendar now = Calendar.getInstance();
          preference.setSummary(DateFormat.getTimeFormat(mContext).format(now.getTime()));
          if (!((RestrictedPreference) preference).isDisabledByAdmin()) {
              preference.setEnabled(!mAutoTimePreferenceController.isEnabled());
          }
      }
  
      @Override
      public boolean handlePreferenceTreeClick(Preference preference) {
          if (!TextUtils.equals(KEY_TIME, preference.getKey())) {
              return false;
          }
          mHost.showTimePicker();
          return true;
      }
  
      @Override
      public String getPreferenceKey() {
          return KEY_TIME;
      }
  
      @Override
      public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
          if (mContext != null) {
              setTime(hourOfDay, minute);
              mHost.updateTimeAndDateDisplay(mContext);
          }
          // We don't need to call timeUpdated() here because the TIME_CHANGED
          // broadcast is sent by the AlarmManager as a side effect of setting the
          // SystemClock time.
      }
  
      public TimePickerDialog buildTimePicker(Activity activity) {
          final Calendar calendar = Calendar.getInstance();
          return new TimePickerDialog(
                  activity,
                  this,
                  calendar.get(Calendar.HOUR_OF_DAY),
                  calendar.get(Calendar.MINUTE),
                  DateFormat.is24HourFormat(activity));
      }
  
      void setTime(int hourOfDay, int minute) {
          Calendar c = Calendar.getInstance();
  
          c.set(Calendar.HOUR_OF_DAY, hourOfDay);
          c.set(Calendar.MINUTE, minute);
          c.set(Calendar.SECOND, 0);
          c.set(Calendar.MILLISECOND, 0);
          long when = Math.max(c.getTimeInMillis(), TimePreferenceHost.MIN_DATE);
  
          if (when / 1000 < Integer.MAX_VALUE) {
              ((AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE)).setTime(when);
          }
      }
  }
  