1 /* 2 * Copyright (C) 2017 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.settings.dream; 18 19 import android.content.Context; 20 import android.support.v7.preference.Preference; 21 import android.support.v7.preference.PreferenceScreen; 22 import android.widget.Button; 23 import com.android.settings.R; 24 import com.android.settings.applications.LayoutPreference; 25 import com.android.settings.core.PreferenceControllerMixin; 26 import com.android.settingslib.core.AbstractPreferenceController; 27 import com.android.settingslib.dream.DreamBackend; 28 29 public class StartNowPreferenceController extends AbstractPreferenceController implements 30 PreferenceControllerMixin { 31 private static final String TAG = "StartNowPreferenceController"; 32 private static final String PREF_KEY = "dream_start_now_button_container"; 33 private final DreamBackend mBackend; 34 StartNowPreferenceController(Context context)35 public StartNowPreferenceController(Context context) { 36 super(context); 37 38 mBackend = DreamBackend.getInstance(context); 39 } 40 41 @Override isAvailable()42 public boolean isAvailable() { 43 return true; 44 } 45 46 @Override getPreferenceKey()47 public String getPreferenceKey() { 48 return PREF_KEY; 49 } 50 51 @Override displayPreference(PreferenceScreen screen)52 public void displayPreference(PreferenceScreen screen) { 53 super.displayPreference(screen); 54 55 LayoutPreference pref = (LayoutPreference) screen.findPreference(getPreferenceKey()); 56 Button startButton = (Button)pref.findViewById(R.id.dream_start_now_button); 57 startButton.setOnClickListener(v -> mBackend.startDreaming()); 58 } 59 60 @Override updateState(Preference preference)61 public void updateState(Preference preference) { 62 super.updateState(preference); 63 64 Button startButton = (Button)((LayoutPreference)preference) 65 .findViewById(R.id.dream_start_now_button); 66 startButton.setEnabled(mBackend.getWhenToDreamSetting() != DreamBackend.NEVER); 67 } 68 } 69