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/*
* Copyright (C) 2017 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.UsbManager;
import android.hardware.usb.UsbPort;
import android.support.annotation.VisibleForTesting;
import android.support.v7.preference.Preference;
import com.android.settings.R;
import com.android.settings.connecteddevice.DevicePreferenceCallback;
import com.android.settings.core.SubSettingLauncher;
import com.android.settings.dashboard.DashboardFragment;
/**
* Controller to maintain connected usb device
*/
public class ConnectedUsbDeviceUpdater {
private DashboardFragment mFragment;
private UsbBackend mUsbBackend;
private DevicePreferenceCallback mDevicePreferenceCallback;
@VisibleForTesting
Preference mUsbPreference;
@VisibleForTesting
UsbConnectionBroadcastReceiver mUsbReceiver;
@VisibleForTesting
UsbConnectionBroadcastReceiver.UsbConnectionListener mUsbConnectionListener =
(connected, functions, powerRole, dataRole) -> {
if (connected) {
mUsbPreference.setSummary(getSummary(dataRole == UsbPort.DATA_ROLE_DEVICE
? functions : UsbManager.FUNCTION_NONE, powerRole));
mDevicePreferenceCallback.onDeviceAdded(mUsbPreference);
} else {
mDevicePreferenceCallback.onDeviceRemoved(mUsbPreference);
}
};
public ConnectedUsbDeviceUpdater(Context context, DashboardFragment fragment,
DevicePreferenceCallback devicePreferenceCallback) {
this(context, fragment, devicePreferenceCallback, new UsbBackend(context));
}
@VisibleForTesting
ConnectedUsbDeviceUpdater(Context context, DashboardFragment fragment,
DevicePreferenceCallback devicePreferenceCallback, UsbBackend usbBackend) {
mFragment = fragment;
mDevicePreferenceCallback = devicePreferenceCallback;
mUsbBackend = usbBackend;
mUsbReceiver = new UsbConnectionBroadcastReceiver(context,
mUsbConnectionListener, mUsbBackend);
}
public void registerCallback() {
// This method could handle multiple register
mUsbReceiver.register();
}
public void unregisterCallback() {
mUsbReceiver.unregister();
}
public void initUsbPreference(Context context) {
mUsbPreference = new Preference(context, null /* AttributeSet */);
mUsbPreference.setTitle(R.string.usb_pref);
mUsbPreference.setIcon(R.drawable.ic_usb);
mUsbPreference.setOnPreferenceClickListener((Preference p) -> {
// New version - uses a separate screen.
new SubSettingLauncher(mFragment.getContext())
.setDestination(UsbDetailsFragment.class.getName())
.setTitle(R.string.device_details_title)
.setSourceMetricsCategory(mFragment.getMetricsCategory())
.launch();
return true;
});
forceUpdate();
}
private void forceUpdate() {
// Register so we can get the connection state from sticky intent.
//TODO(b/70336520): Use an API to get data instead of sticky intent
mUsbReceiver.register();
}
public static int getSummary(long functions, int power) {
switch (power) {
case UsbPort.POWER_ROLE_SINK:
if (functions == UsbManager.FUNCTION_MTP) {
return R.string.usb_summary_file_transfers;
} else if (functions == UsbManager.FUNCTION_RNDIS) {
return R.string.usb_summary_tether;
} else if (functions == UsbManager.FUNCTION_PTP) {
return R.string.usb_summary_photo_transfers;
} else if (functions == UsbManager.FUNCTION_MIDI) {
return R.string.usb_summary_MIDI;
} else {
return R.string.usb_summary_charging_only;
}
case UsbPort.POWER_ROLE_SOURCE:
if (functions == UsbManager.FUNCTION_MTP) {
return R.string.usb_summary_file_transfers_power;
} else if (functions == UsbManager.FUNCTION_RNDIS) {
return R.string.usb_summary_tether_power;
} else if (functions == UsbManager.FUNCTION_PTP) {
return R.string.usb_summary_photo_transfers_power;
} else if (functions == UsbManager.FUNCTION_MIDI) {
return R.string.usb_summary_MIDI_power;
} else {
return R.string.usb_summary_power_only;
}
default:
return R.string.usb_summary_charging_only;
}
}
}
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