| /* |
| * Copyright (C) 2018 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.connecteddevice.usb; |
| |
| import android.content.Context; |
| import android.hardware.usb.UsbPort; |
| |
| import androidx.preference.PreferenceCategory; |
| import androidx.preference.PreferenceScreen; |
| |
| import com.android.settings.R; |
| import com.android.settings.Utils; |
| import com.android.settings.widget.RadioButtonPreference; |
| |
| /** |
| * This class controls the radio buttons for switching between |
| * USB device and host mode. |
| */ |
| public class UsbDetailsDataRoleController extends UsbDetailsController |
| implements RadioButtonPreference.OnClickListener { |
| |
| private PreferenceCategory mPreferenceCategory; |
| private RadioButtonPreference mDevicePref; |
| private RadioButtonPreference mHostPref; |
| |
| private RadioButtonPreference mNextRolePref; |
| |
| private final Runnable mFailureCallback = () -> { |
| if (mNextRolePref != null) { |
| mNextRolePref.setSummary(R.string.usb_switching_failed); |
| mNextRolePref = null; |
| } |
| }; |
| |
| public UsbDetailsDataRoleController(Context context, UsbDetailsFragment fragment, |
| UsbBackend backend) { |
| super(context, fragment, backend); |
| } |
| |
| @Override |
| public void displayPreference(PreferenceScreen screen) { |
| super.displayPreference(screen); |
| mPreferenceCategory = (PreferenceCategory) screen.findPreference(getPreferenceKey()); |
| mHostPref = makeRadioPreference(UsbBackend.dataRoleToString(UsbPort.DATA_ROLE_HOST), |
| R.string.usb_control_host); |
| mDevicePref = makeRadioPreference(UsbBackend.dataRoleToString(UsbPort.DATA_ROLE_DEVICE), |
| R.string.usb_control_device); |
| } |
| |
| @Override |
| protected void refresh(boolean connected, long functions, int powerRole, int dataRole) { |
| if (dataRole == UsbPort.DATA_ROLE_DEVICE) { |
| mDevicePref.setChecked(true); |
| mHostPref.setChecked(false); |
| mPreferenceCategory.setEnabled(true); |
| } else if (dataRole == UsbPort.DATA_ROLE_HOST) { |
| mDevicePref.setChecked(false); |
| mHostPref.setChecked(true); |
| mPreferenceCategory.setEnabled(true); |
| } else if (!connected || dataRole == UsbPort.DATA_ROLE_NONE){ |
| mPreferenceCategory.setEnabled(false); |
| if (mNextRolePref == null) { |
| // Disconnected with no operation pending, so clear subtexts |
| mHostPref.setSummary(""); |
| mDevicePref.setSummary(""); |
| } |
| } |
| |
| if (mNextRolePref != null && dataRole != UsbPort.DATA_ROLE_NONE) { |
| if (UsbBackend.dataRoleFromString(mNextRolePref.getKey()) == dataRole) { |
| // Clear switching text if switch succeeded |
| mNextRolePref.setSummary(""); |
| } else { |
| // Set failure text if switch failed |
| mNextRolePref.setSummary(R.string.usb_switching_failed); |
| } |
| mNextRolePref = null; |
| mHandler.removeCallbacks(mFailureCallback); |
| } |
| } |
| |
| @Override |
| public void onRadioButtonClicked(RadioButtonPreference preference) { |
| int role = UsbBackend.dataRoleFromString(preference.getKey()); |
| if (role != mUsbBackend.getDataRole() && mNextRolePref == null |
| && !Utils.isMonkeyRunning()) { |
| mUsbBackend.setDataRole(role); |
| mNextRolePref = preference; |
| preference.setSummary(R.string.usb_switching); |
| |
| mHandler.postDelayed(mFailureCallback, |
| mUsbBackend.areAllRolesSupported() ? UsbBackend.PD_ROLE_SWAP_TIMEOUT_MS |
| : UsbBackend.NONPD_ROLE_SWAP_TIMEOUT_MS); |
| } |
| } |
| |
| @Override |
| public boolean isAvailable() { |
| return !Utils.isMonkeyRunning(); |
| } |
| |
| @Override |
| public String getPreferenceKey() { |
| return "usb_details_data_role"; |
| } |
| |
| private RadioButtonPreference makeRadioPreference(String key, int titleId) { |
| RadioButtonPreference pref = new RadioButtonPreference(mPreferenceCategory.getContext()); |
| pref.setKey(key); |
| pref.setTitle(titleId); |
| pref.setOnClickListener(this); |
| mPreferenceCategory.addPreference(pref); |
| return pref; |
| } |
| } |