1 /* 2 * Copyright (C) 2018 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.connecteddevice.usb; 18 19 import android.content.Context; 20 import android.hardware.usb.UsbManager; 21 import android.hardware.usb.UsbPort; 22 import android.support.v7.preference.PreferenceCategory; 23 import android.support.v7.preference.PreferenceScreen; 24 25 import com.android.settings.R; 26 import com.android.settings.Utils; 27 import com.android.settings.widget.RadioButtonPreference; 28 29 import java.util.LinkedHashMap; 30 import java.util.Map; 31 32 /** 33 * This class controls the radio buttons for choosing between different USB functions. 34 */ 35 public class UsbDetailsFunctionsController extends UsbDetailsController 36 implements RadioButtonPreference.OnClickListener { 37 38 static final Map<Long, Integer> FUNCTIONS_MAP = new LinkedHashMap<>(); 39 40 static { FUNCTIONS_MAP.put(UsbManager.FUNCTION_MTP, R.string.usb_use_file_transfers)41 FUNCTIONS_MAP.put(UsbManager.FUNCTION_MTP, R.string.usb_use_file_transfers); FUNCTIONS_MAP.put(UsbManager.FUNCTION_RNDIS, R.string.usb_use_tethering)42 FUNCTIONS_MAP.put(UsbManager.FUNCTION_RNDIS, R.string.usb_use_tethering); FUNCTIONS_MAP.put(UsbManager.FUNCTION_MIDI, R.string.usb_use_MIDI)43 FUNCTIONS_MAP.put(UsbManager.FUNCTION_MIDI, R.string.usb_use_MIDI); FUNCTIONS_MAP.put(UsbManager.FUNCTION_PTP, R.string.usb_use_photo_transfers)44 FUNCTIONS_MAP.put(UsbManager.FUNCTION_PTP, R.string.usb_use_photo_transfers); FUNCTIONS_MAP.put(UsbManager.FUNCTION_NONE, R.string.usb_use_charging_only)45 FUNCTIONS_MAP.put(UsbManager.FUNCTION_NONE, R.string.usb_use_charging_only); 46 } 47 48 private PreferenceCategory mProfilesContainer; 49 UsbDetailsFunctionsController(Context context, UsbDetailsFragment fragment, UsbBackend backend)50 public UsbDetailsFunctionsController(Context context, UsbDetailsFragment fragment, 51 UsbBackend backend) { 52 super(context, fragment, backend); 53 } 54 55 @Override displayPreference(PreferenceScreen screen)56 public void displayPreference(PreferenceScreen screen) { 57 super.displayPreference(screen); 58 mProfilesContainer = (PreferenceCategory) screen.findPreference(getPreferenceKey()); 59 } 60 61 /** 62 * Gets a switch preference for the particular option, creating it if needed. 63 */ getProfilePreference(String key, int titleId)64 private RadioButtonPreference getProfilePreference(String key, int titleId) { 65 RadioButtonPreference pref = (RadioButtonPreference) mProfilesContainer.findPreference(key); 66 if (pref == null) { 67 pref = new RadioButtonPreference(mProfilesContainer.getContext()); 68 pref.setKey(key); 69 pref.setTitle(titleId); 70 pref.setOnClickListener(this); 71 mProfilesContainer.addPreference(pref); 72 } 73 return pref; 74 } 75 76 @Override refresh(boolean connected, long functions, int powerRole, int dataRole)77 protected void refresh(boolean connected, long functions, int powerRole, int dataRole) { 78 if (!connected || dataRole != UsbPort.DATA_ROLE_DEVICE) { 79 mProfilesContainer.setEnabled(false); 80 } else { 81 // Functions are only available in device mode 82 mProfilesContainer.setEnabled(true); 83 } 84 RadioButtonPreference pref; 85 for (long option : FUNCTIONS_MAP.keySet()) { 86 int title = FUNCTIONS_MAP.get(option); 87 pref = getProfilePreference(UsbBackend.usbFunctionsToString(option), title); 88 // Only show supported options 89 if (mUsbBackend.areFunctionsSupported(option)) { 90 pref.setChecked(functions == option); 91 } else { 92 mProfilesContainer.removePreference(pref); 93 } 94 } 95 } 96 97 @Override onRadioButtonClicked(RadioButtonPreference preference)98 public void onRadioButtonClicked(RadioButtonPreference preference) { 99 long function = UsbBackend.usbFunctionsFromString(preference.getKey()); 100 if (function != mUsbBackend.getCurrentFunctions() && !Utils.isMonkeyRunning()) { 101 mUsbBackend.setCurrentFunctions(function); 102 } 103 } 104 105 @Override isAvailable()106 public boolean isAvailable() { 107 return !Utils.isMonkeyRunning(); 108 } 109 110 @Override getPreferenceKey()111 public String getPreferenceKey() { 112 return "usb_details_functions"; 113 } 114 } 115