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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.POWER_ROLE_NONE;
import static android.hardware.usb.UsbPortStatus.POWER_ROLE_SINK;
import static android.hardware.usb.UsbPortStatus.POWER_ROLE_SOURCE;
import android.content.Context;
import androidx.preference.Preference;
import androidx.preference.Preference.OnPreferenceClickListener;
import androidx.preference.PreferenceCategory;
import androidx.preference.PreferenceScreen;
import androidx.preference.SwitchPreference;
import com.android.settings.R;
import com.android.settings.Utils;
/**
* This class controls the switch for changing USB power direction.
*/
public class UsbDetailsPowerRoleController extends UsbDetailsController
implements OnPreferenceClickListener {
private PreferenceCategory mPreferenceCategory;
private SwitchPreference mSwitchPreference;
private int mNextPowerRole;
private final Runnable mFailureCallback = () -> {
if (mNextPowerRole != POWER_ROLE_NONE) {
mSwitchPreference.setSummary(R.string.usb_switching_failed);
mNextPowerRole = POWER_ROLE_NONE;
}
};
public UsbDetailsPowerRoleController(Context context, UsbDetailsFragment fragment,
UsbBackend backend) {
super(context, fragment, backend);
mNextPowerRole = POWER_ROLE_NONE;
}
@Override
public void displayPreference(PreferenceScreen screen) {
super.displayPreference(screen);
mPreferenceCategory = screen.findPreference(getPreferenceKey());
mSwitchPreference = new SwitchPreference(mPreferenceCategory.getContext());
mSwitchPreference.setTitle(R.string.usb_use_power_only);
mSwitchPreference.setOnPreferenceClickListener(this);
mPreferenceCategory.addPreference(mSwitchPreference);
}
@Override
protected void refresh(boolean connected, long functions, int powerRole, int dataRole) {
// Hide this option if this is not a PD compatible connection
if (connected && !mUsbBackend.areAllRolesSupported()) {
mFragment.getPreferenceScreen().removePreference(mPreferenceCategory);
} else if (connected && mUsbBackend.areAllRolesSupported()) {
mFragment.getPreferenceScreen().addPreference(mPreferenceCategory);
}
if (powerRole == POWER_ROLE_SOURCE) {
mSwitchPreference.setChecked(true);
mPreferenceCategory.setEnabled(true);
} else if (powerRole == POWER_ROLE_SINK) {
mSwitchPreference.setChecked(false);
mPreferenceCategory.setEnabled(true);
} else if (!connected || powerRole == POWER_ROLE_NONE) {
mPreferenceCategory.setEnabled(false);
if (mNextPowerRole == POWER_ROLE_NONE) {
mSwitchPreference.setSummary("");
}
}
if (mNextPowerRole != POWER_ROLE_NONE
&& powerRole != POWER_ROLE_NONE) {
if (mNextPowerRole == powerRole) {
// Clear switching text if switch succeeded
mSwitchPreference.setSummary("");
} else {
// Set failure text if switch failed
mSwitchPreference.setSummary(R.string.usb_switching_failed);
}
mNextPowerRole = POWER_ROLE_NONE;
mHandler.removeCallbacks(mFailureCallback);
}
}
@Override
public boolean onPreferenceClick(Preference preference) {
int newRole = mSwitchPreference.isChecked() ? POWER_ROLE_SOURCE
: POWER_ROLE_SINK;
if (mUsbBackend.getPowerRole() != newRole && mNextPowerRole == POWER_ROLE_NONE
&& !Utils.isMonkeyRunning()) {
mUsbBackend.setPowerRole(newRole);
mNextPowerRole = newRole;
mSwitchPreference.setSummary(R.string.usb_switching);
mHandler.postDelayed(mFailureCallback,
mUsbBackend.areAllRolesSupported() ? UsbBackend.PD_ROLE_SWAP_TIMEOUT_MS
: UsbBackend.NONPD_ROLE_SWAP_TIMEOUT_MS);
}
// We don't know that the action succeeded until called back in refresh()
mSwitchPreference.setChecked(!mSwitchPreference.isChecked());
return true;
}
@Override
public boolean isAvailable() {
return !Utils.isMonkeyRunning()
&& !mUsbBackend.isSinglePowerRoleSupported();
}
@Override
public String getPreferenceKey() {
return "usb_details_power_role";
}
}
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