| /* |
| * Copyright 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.settings.development; |
| |
| import android.content.Context; |
| import android.os.SystemProperties; |
| |
| import androidx.annotation.VisibleForTesting; |
| import androidx.preference.Preference; |
| import androidx.preference.SwitchPreference; |
| |
| import com.android.settings.core.PreferenceControllerMixin; |
| import com.android.settingslib.development.DeveloperOptionsPreferenceController; |
| import com.android.settingslib.development.SystemPropPoker; |
| |
| /** |
| * Controller that toggles window blurs on SurfaceFlinger on devices that support it. |
| */ |
| public final class EnableBlursPreferenceController extends DeveloperOptionsPreferenceController |
| implements Preference.OnPreferenceChangeListener, PreferenceControllerMixin { |
| |
| @VisibleForTesting |
| static final String DISABLE_BLURS_SYSPROP = "persist.sys.sf.disable_blurs"; |
| private static final String ENABLE_BLURS_ON_WINDOWS = "enable_blurs_on_windows"; |
| private final boolean mBlurSupported; |
| |
| public EnableBlursPreferenceController(Context context) { |
| this(context, SystemProperties |
| .getBoolean("ro.surface_flinger.supports_background_blur", false)); |
| } |
| |
| @VisibleForTesting |
| public EnableBlursPreferenceController(Context context, boolean blurSupported) { |
| super(context); |
| mBlurSupported = blurSupported; |
| } |
| |
| @Override |
| public String getPreferenceKey() { |
| return ENABLE_BLURS_ON_WINDOWS; |
| } |
| |
| @Override |
| public boolean onPreferenceChange(Preference preference, Object newValue) { |
| final boolean isDisabled = !(Boolean) newValue; |
| SystemProperties.set(DISABLE_BLURS_SYSPROP, isDisabled ? "1" : "0"); |
| SystemPropPoker.getInstance().poke(); |
| return true; |
| } |
| |
| @Override |
| public boolean isAvailable() { |
| return mBlurSupported; |
| } |
| |
| @Override |
| public void updateState(Preference preference) { |
| boolean isEnabled = !SystemProperties.getBoolean( |
| DISABLE_BLURS_SYSPROP, false /* default */); |
| ((SwitchPreference) mPreference).setChecked(isEnabled); |
| } |
| |
| @Override |
| protected void onDeveloperOptionsSwitchDisabled() { |
| super.onDeveloperOptionsSwitchDisabled(); |
| SystemProperties.set(DISABLE_BLURS_SYSPROP, null); |
| updateState(null); |
| } |
| } |