1 /* 2 * Copyright (C) 2019 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.settings.gestures; 18 19 import static android.view.WindowManagerPolicyConstants.NAV_BAR_MODE_2BUTTON; 20 import static android.view.WindowManagerPolicyConstants.NAV_BAR_MODE_GESTURAL; 21 22 import android.content.ComponentName; 23 import android.content.Context; 24 import android.content.Intent; 25 import android.content.pm.PackageManager; 26 27 import com.android.settings.R; 28 import com.android.settings.core.BasePreferenceController; 29 30 public class SystemNavigationPreferenceController extends BasePreferenceController { 31 32 static final String PREF_KEY_SYSTEM_NAVIGATION = "gesture_system_navigation"; 33 private static final String ACTION_QUICKSTEP = "android.intent.action.QUICKSTEP_SERVICE"; 34 SystemNavigationPreferenceController(Context context, String key)35 public SystemNavigationPreferenceController(Context context, String key) { 36 super(context, key); 37 } 38 39 @Override getAvailabilityStatus()40 public int getAvailabilityStatus() { 41 return isGestureAvailable(mContext) ? AVAILABLE : UNSUPPORTED_ON_DEVICE; 42 } 43 44 @Override getSummary()45 public CharSequence getSummary() { 46 if (isGestureNavigationEnabled(mContext)) { 47 return mContext.getText(R.string.edge_to_edge_navigation_title); 48 } else if (is2ButtonNavigationEnabled(mContext)) { 49 return mContext.getText(R.string.swipe_up_to_switch_apps_title); 50 } else { 51 return mContext.getText(R.string.legacy_navigation_title); 52 } 53 } 54 isGestureAvailable(Context context)55 static boolean isGestureAvailable(Context context) { 56 // Skip if the swipe up settings are not available 57 if (!context.getResources().getBoolean( 58 com.android.internal.R.bool.config_swipe_up_gesture_setting_available)) { 59 return false; 60 } 61 62 // Skip if the recents component is not defined 63 final ComponentName recentsComponentName = ComponentName.unflattenFromString( 64 context.getString(com.android.internal.R.string.config_recentsComponentName)); 65 if (recentsComponentName == null) { 66 return false; 67 } 68 69 // Skip if the overview proxy service exists 70 final Intent quickStepIntent = new Intent(ACTION_QUICKSTEP) 71 .setPackage(recentsComponentName.getPackageName()); 72 if (context.getPackageManager().resolveService(quickStepIntent, 73 PackageManager.MATCH_SYSTEM_ONLY) == null) { 74 return false; 75 } 76 77 return true; 78 } 79 isOverlayPackageAvailable(Context context, String overlayPackage)80 static boolean isOverlayPackageAvailable(Context context, String overlayPackage) { 81 try { 82 return context.getPackageManager().getPackageInfo(overlayPackage, 0) != null; 83 } catch (PackageManager.NameNotFoundException e) { 84 // Not found, just return unavailable 85 return false; 86 } 87 } 88 is2ButtonNavigationEnabled(Context context)89 static boolean is2ButtonNavigationEnabled(Context context) { 90 return NAV_BAR_MODE_2BUTTON == context.getResources().getInteger( 91 com.android.internal.R.integer.config_navBarInteractionMode); 92 } 93 isGestureNavigationEnabled(Context context)94 static boolean isGestureNavigationEnabled(Context context) { 95 return NAV_BAR_MODE_GESTURAL == context.getResources().getInteger( 96 com.android.internal.R.integer.config_navBarInteractionMode); 97 } 98 } 99