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.development; 18 19 import android.content.Context; 20 import android.os.SystemProperties; 21 import android.support.v14.preference.SwitchPreference; 22 import android.support.v7.preference.Preference; 23 import android.support.v7.preference.PreferenceScreen; 24 import android.widget.Toast; 25 26 import com.android.internal.annotations.VisibleForTesting; 27 import com.android.settings.R; 28 import com.android.settings.core.PreferenceControllerMixin; 29 import com.android.settingslib.core.AbstractPreferenceController; 30 31 public class CameraHalHdrplusPreferenceController extends AbstractPreferenceController 32 implements PreferenceControllerMixin { 33 34 private static final String KEY_CAMERA_HAL_HDRPLUS_SWITCH = "camera_hal_hdrplus_switch"; 35 @VisibleForTesting 36 static final String BUILD_TYPE = "ro.build.type"; 37 @VisibleForTesting 38 static final String PROPERTY_CAMERA_HAL_HDRPLUS = "persist.camera.hdrplus.enable"; 39 @VisibleForTesting 40 static final String ENABLED = "1"; 41 @VisibleForTesting 42 static final String DISABLED = "0"; 43 44 private SwitchPreference mPreference; 45 46 public CameraHalHdrplusPreferenceController(Context context) { 47 super(context); 48 } 49 50 @Override 51 public void displayPreference(PreferenceScreen screen) { 52 super.displayPreference(screen); 53 if (isAvailable()) { 54 mPreference = (SwitchPreference) screen.findPreference(KEY_CAMERA_HAL_HDRPLUS_SWITCH); 55 mPreference.setChecked(isHalHdrplusEnabled()); 56 } 57 } 58 59 @Override 60 public String getPreferenceKey() { 61 return KEY_CAMERA_HAL_HDRPLUS_SWITCH; 62 } 63 64 @Override 65 public boolean isAvailable() { 66 return mContext.getResources().getBoolean(R.bool.config_show_camera_hal_hdrplus); 67 } 68 69 @Override 70 public void updateState(Preference preference) { 71 updatePreference(); 72 } 73 74 @Override 75 public boolean handlePreferenceTreeClick(Preference preference) { 76 if (KEY_CAMERA_HAL_HDRPLUS_SWITCH.equals(preference.getKey())) { 77 final SwitchPreference switchPreference = (SwitchPreference)preference; 78 SystemProperties.set(PROPERTY_CAMERA_HAL_HDRPLUS, 79 switchPreference.isChecked() ? ENABLED : DISABLED); 80 Toast.makeText(mContext, R.string.camera_hal_hdrplus_toast, 81 Toast.LENGTH_LONG).show(); 82 return true; 83 } 84 return false; 85 } 86 87 public void enablePreference(boolean enabled) { 88 if (isAvailable()) { 89 mPreference.setEnabled(enabled); 90 } 91 } 92 93 public boolean updatePreference() { 94 if (!isAvailable()) { 95 return false; 96 } 97 final boolean enabled = isHalHdrplusEnabled(); 98 mPreference.setChecked(enabled); 99 return enabled; 100 } 101 102 private boolean isHalHdrplusEnabled() { 103 return SystemProperties.getBoolean(PROPERTY_CAMERA_HAL_HDRPLUS, false); 104 } 105 } 106