1 /* 2 * Copyright (C) 2024 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.systemui.accessibility; 18 19 import android.content.Context; 20 import android.provider.Settings; 21 22 import androidx.annotation.MainThread; 23 import androidx.annotation.Nullable; 24 25 import com.android.systemui.dagger.SysUISingleton; 26 import com.android.systemui.settings.UserTracker; 27 import com.android.systemui.util.settings.SecureSettings; 28 29 import javax.inject.Inject; 30 31 /** 32 * Controller for tracking the current accessibility gesture list. 33 * 34 * @see Settings.Secure#ACCESSIBILITY_GESTURE_TARGETS 35 */ 36 @MainThread 37 @SysUISingleton 38 public class AccessibilityGestureTargetsObserver extends 39 SecureSettingsContentObserver<AccessibilityGestureTargetsObserver.TargetsChangedListener> { 40 41 /** Listener for accessibility gesture targets changes. */ 42 public interface TargetsChangedListener { 43 44 /** 45 * Called when accessibility gesture targets changes. 46 * 47 * @param targets Current content of {@link Settings.Secure#ACCESSIBILITY_GESTURE_TARGETS} 48 */ onAccessibilityGestureTargetsChanged(String targets)49 void onAccessibilityGestureTargetsChanged(String targets); 50 } 51 52 @Inject AccessibilityGestureTargetsObserver( Context context, UserTracker userTracker, SecureSettings secureSettings)53 public AccessibilityGestureTargetsObserver( 54 Context context, UserTracker userTracker, SecureSettings secureSettings) { 55 super(context, userTracker, secureSettings, Settings.Secure.ACCESSIBILITY_GESTURE_TARGETS); 56 } 57 58 @Override onValueChanged(TargetsChangedListener listener, String value)59 void onValueChanged(TargetsChangedListener listener, String value) { 60 listener.onAccessibilityGestureTargetsChanged(value); 61 } 62 63 /** Returns the current string from settings key 64 * {@link Settings.Secure#ACCESSIBILITY_GESTURE_TARGETS}. */ 65 @Nullable getCurrentAccessibilityGestureTargets()66 public String getCurrentAccessibilityGestureTargets() { 67 return getSettingsValue(); 68 } 69 } 70