| /* |
| * Copyright (C) 2021 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.systemui.accessibility; |
| |
| import static android.provider.Settings.Secure.ACCESSIBILITY_BUTTON_MODE_FLOATING_MENU; |
| import static android.provider.Settings.Secure.ACCESSIBILITY_BUTTON_MODE_NAVIGATION_BAR; |
| |
| import android.annotation.IntDef; |
| import android.annotation.MainThread; |
| import android.content.Context; |
| import android.provider.Settings; |
| import android.util.Log; |
| |
| import com.android.systemui.dagger.SysUISingleton; |
| |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| |
| import javax.inject.Inject; |
| |
| /** |
| * Observes changes of the accessibility button mode |
| * {@link Settings.Secure#ACCESSIBILITY_BUTTON_MODE} and notify its listeners. |
| */ |
| @MainThread |
| @SysUISingleton |
| public class AccessibilityButtonModeObserver extends |
| SecureSettingsContentObserver<AccessibilityButtonModeObserver.ModeChangedListener> { |
| |
| private static final String TAG = "A11yButtonModeObserver"; |
| |
| private static final int ACCESSIBILITY_BUTTON_MODE_DEFAULT = |
| ACCESSIBILITY_BUTTON_MODE_NAVIGATION_BAR; |
| |
| @Retention(RetentionPolicy.SOURCE) |
| @IntDef({ |
| ACCESSIBILITY_BUTTON_MODE_NAVIGATION_BAR, |
| ACCESSIBILITY_BUTTON_MODE_FLOATING_MENU |
| }) |
| public @interface AccessibilityButtonMode {} |
| |
| /** Listener for accessibility button mode changes. */ |
| public interface ModeChangedListener { |
| |
| /** |
| * Called when accessibility button mode changes. |
| * |
| * @param mode Current accessibility button mode |
| */ |
| void onAccessibilityButtonModeChanged(@AccessibilityButtonMode int mode); |
| } |
| |
| @Inject |
| public AccessibilityButtonModeObserver(Context context) { |
| super(context, Settings.Secure.ACCESSIBILITY_BUTTON_MODE); |
| } |
| |
| @Override |
| void onValueChanged(ModeChangedListener listener, String value) { |
| final int mode = parseAccessibilityButtonMode(value); |
| listener.onAccessibilityButtonModeChanged(mode); |
| } |
| |
| /** |
| * Gets the current accessibility button mode from the current user's settings. |
| * |
| * See {@link Settings.Secure#ACCESSIBILITY_BUTTON_MODE}. |
| */ |
| public int getCurrentAccessibilityButtonMode() { |
| final String value = getSettingsValue(); |
| |
| return parseAccessibilityButtonMode(value); |
| } |
| |
| private int parseAccessibilityButtonMode(String value) { |
| int mode; |
| |
| try { |
| mode = Integer.parseInt(value); |
| } catch (NumberFormatException e) { |
| Log.e(TAG, "Invalid string for " + e); |
| mode = ACCESSIBILITY_BUTTON_MODE_DEFAULT; |
| } |
| |
| return mode; |
| } |
| } |