| /* |
| * Copyright (C) 2020 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.internal.policy; |
| |
| import static com.android.internal.config.sysui.SystemUiDeviceConfigFlags.BACK_GESTURE_EDGE_WIDTH; |
| |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.res.Resources; |
| import android.database.ContentObserver; |
| import android.os.Handler; |
| import android.os.UserHandle; |
| import android.provider.DeviceConfig; |
| import android.provider.Settings; |
| import android.util.DisplayMetrics; |
| import android.util.TypedValue; |
| |
| /** |
| * @hide |
| */ |
| public class GestureNavigationSettingsObserver extends ContentObserver { |
| private Context mContext; |
| private Runnable mOnChangeRunnable; |
| private Handler mMainHandler; |
| |
| public GestureNavigationSettingsObserver(Handler handler, Context context, |
| Runnable onChangeRunnable) { |
| super(handler); |
| mMainHandler = handler; |
| mContext = context; |
| mOnChangeRunnable = onChangeRunnable; |
| } |
| |
| private final DeviceConfig.OnPropertiesChangedListener mOnPropertiesChangedListener = |
| new DeviceConfig.OnPropertiesChangedListener() { |
| @Override |
| public void onPropertiesChanged(DeviceConfig.Properties properties) { |
| if (DeviceConfig.NAMESPACE_SYSTEMUI.equals(properties.getNamespace()) |
| && mOnChangeRunnable != null) { |
| mOnChangeRunnable.run(); |
| } |
| } |
| }; |
| |
| public void register() { |
| ContentResolver r = mContext.getContentResolver(); |
| r.registerContentObserver( |
| Settings.Secure.getUriFor(Settings.Secure.BACK_GESTURE_INSET_SCALE_LEFT), |
| false, this, UserHandle.USER_ALL); |
| r.registerContentObserver( |
| Settings.Secure.getUriFor(Settings.Secure.BACK_GESTURE_INSET_SCALE_RIGHT), |
| false, this, UserHandle.USER_ALL); |
| r.registerContentObserver( |
| Settings.Secure.getUriFor(Settings.Secure.USER_SETUP_COMPLETE), |
| false, this, UserHandle.USER_ALL); |
| DeviceConfig.addOnPropertiesChangedListener( |
| DeviceConfig.NAMESPACE_SYSTEMUI, |
| runnable -> mMainHandler.post(runnable), |
| mOnPropertiesChangedListener); |
| } |
| |
| public void unregister() { |
| mContext.getContentResolver().unregisterContentObserver(this); |
| DeviceConfig.removeOnPropertiesChangedListener(mOnPropertiesChangedListener); |
| } |
| |
| @Override |
| public void onChange(boolean selfChange) { |
| super.onChange(selfChange); |
| if (mOnChangeRunnable != null) { |
| mOnChangeRunnable.run(); |
| } |
| } |
| |
| public int getLeftSensitivity(Resources userRes) { |
| return getSensitivity(userRes, Settings.Secure.BACK_GESTURE_INSET_SCALE_LEFT); |
| } |
| |
| public int getRightSensitivity(Resources userRes) { |
| return getSensitivity(userRes, Settings.Secure.BACK_GESTURE_INSET_SCALE_RIGHT); |
| } |
| |
| public boolean areNavigationButtonForcedVisible() { |
| return Settings.Secure.getIntForUser(mContext.getContentResolver(), |
| Settings.Secure.USER_SETUP_COMPLETE, 0, UserHandle.USER_CURRENT) == 0; |
| } |
| |
| private int getSensitivity(Resources userRes, String side) { |
| final DisplayMetrics dm = userRes.getDisplayMetrics(); |
| final float defaultInset = userRes.getDimension( |
| com.android.internal.R.dimen.config_backGestureInset) / dm.density; |
| // Only apply the back gesture config if there is an existing inset |
| final float backGestureInset = defaultInset > 0 |
| ? DeviceConfig.getFloat(DeviceConfig.NAMESPACE_SYSTEMUI, |
| BACK_GESTURE_EDGE_WIDTH, defaultInset) |
| : defaultInset; |
| final float inset = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, backGestureInset, |
| dm); |
| final float scale = Settings.Secure.getFloatForUser( |
| mContext.getContentResolver(), side, 1.0f, UserHandle.USER_CURRENT); |
| return (int) (inset * scale); |
| } |
| } |