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/*
* Copyright (C) 2016 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.inputmethod;
import android.content.Context;
import android.hardware.input.InputManager;
import android.provider.Settings;
import android.support.v14.preference.SwitchPreference;
import android.support.v7.preference.Preference;
import android.support.v7.preference.PreferenceScreen;
import android.text.TextUtils;
import android.view.InputDevice;
import com.android.settings.core.PreferenceController;
import com.android.settingslib.core.lifecycle.LifecycleObserver;
import com.android.settingslib.core.lifecycle.events.OnPause;
import com.android.settingslib.core.lifecycle.events.OnResume;
public class GameControllerPreferenceController extends PreferenceController
implements InputManager.InputDeviceListener, LifecycleObserver, OnResume, OnPause {
public static final String PREF_KEY = "vibrate_input_devices";
private static final String CATEGORY_KEY = "game_controller_settings_category";
private final InputManager mIm;
private PreferenceScreen mScreen;
private Preference mCategory;
private Preference mPreference;
public GameControllerPreferenceController(Context context) {
super(context);
mIm = (InputManager) context.getSystemService(Context.INPUT_SERVICE);
}
@Override
public void onResume() {
mIm.registerInputDeviceListener(this, null);
}
@Override
public void onPause() {
mIm.unregisterInputDeviceListener(this);
}
@Override
public void displayPreference(PreferenceScreen screen) {
super.displayPreference(screen);
mScreen = screen;
mCategory = screen.findPreference(CATEGORY_KEY);
mPreference = screen.findPreference(PREF_KEY);
}
@Override
public boolean isAvailable() {
final int[] devices = mIm.getInputDeviceIds();
for (int deviceId : devices) {
InputDevice device = mIm.getInputDevice(deviceId);
if (device != null && !device.isVirtual() && device.getVibrator().hasVibrator()) {
return true;
}
}
return false;
}
@Override
public boolean handlePreferenceTreeClick(Preference preference) {
if (TextUtils.equals(PREF_KEY, preference.getKey())) {
Settings.System.putInt(mContext.getContentResolver(),
Settings.System.VIBRATE_INPUT_DEVICES,
((SwitchPreference) preference).isChecked() ? 1 : 0);
return true;
}
return false;
}
@Override
public String getPreferenceKey() {
return CATEGORY_KEY;
}
@Override
public void updateState(Preference preference) {
if (preference == null) {
return;
}
((SwitchPreference) preference).setChecked(Settings.System.getInt(
mContext.getContentResolver(),
Settings.System.VIBRATE_INPUT_DEVICES, 1) > 0);
}
@Override
public void onInputDeviceAdded(int deviceId) {
updateGameControllers();
}
@Override
public void onInputDeviceRemoved(int deviceId) {
updateGameControllers();
}
@Override
public void onInputDeviceChanged(int deviceId) {
updateGameControllers();
}
private void updateGameControllers() {
if (isAvailable()) {
mScreen.addPreference(mCategory);
updateState(mPreference);
} else {
if (mCategory != null) {
mScreen.removePreference(mCategory);
}
}
}
}
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