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/*
* 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 static android.hardware.usb.UsbPortStatus.DATA_ROLE_DEVICE;
import static android.hardware.usb.UsbPortStatus.DATA_ROLE_HOST;
import static android.hardware.usb.UsbPortStatus.DATA_ROLE_NONE;
import android.content.Context;
import androidx.preference.PreferenceCategory;
import androidx.preference.PreferenceScreen;
import com.android.settings.R;
import com.android.settings.Utils;
import com.android.settingslib.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 = screen.findPreference(getPreferenceKey());
mHostPref = makeRadioPreference(UsbBackend.dataRoleToString(DATA_ROLE_HOST),
R.string.usb_control_host);
mDevicePref = makeRadioPreference(UsbBackend.dataRoleToString(DATA_ROLE_DEVICE),
R.string.usb_control_device);
}
@Override
protected void refresh(boolean connected, long functions, int powerRole, int dataRole) {
if (dataRole == DATA_ROLE_DEVICE) {
mDevicePref.setChecked(true);
mHostPref.setChecked(false);
mPreferenceCategory.setEnabled(true);
} else if (dataRole == DATA_ROLE_HOST) {
mDevicePref.setChecked(false);
mHostPref.setChecked(true);
mPreferenceCategory.setEnabled(true);
} else if (!connected || dataRole == 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 != 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()
&& !mUsbBackend.isSingleDataRoleSupported();
}
@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;
}
}
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