1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file 5 * except in compliance with the License. You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software distributed under the 10 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 11 * KIND, either express or implied. See the License for the specific language governing 12 * permissions and limitations under the License. 13 */ 14 15 package com.android.systemui.plugins; 16 17 import android.content.ComponentName; 18 import android.content.Context; 19 import android.content.SharedPreferences; 20 import android.content.pm.PackageManager; 21 import android.util.Log; 22 23 import com.android.internal.annotations.VisibleForTesting; 24 import com.android.systemui.shared.plugins.PluginEnabler; 25 26 import javax.inject.Inject; 27 import javax.inject.Singleton; 28 29 /** */ 30 @Singleton 31 public class PluginEnablerImpl implements PluginEnabler { 32 private static final String TAG = "PluginEnablerImpl"; 33 private static final String CRASH_DISABLED_PLUGINS_PREF_FILE = "auto_disabled_plugins_prefs"; 34 35 private final PackageManager mPm; 36 private final SharedPreferences mAutoDisabledPrefs; 37 PluginEnablerImpl(Context context)38 public PluginEnablerImpl(Context context) { 39 this(context, context.getPackageManager()); 40 } 41 42 @Inject PluginEnablerImpl(Context context, PackageManager pm)43 @VisibleForTesting public PluginEnablerImpl(Context context, PackageManager pm) { 44 mAutoDisabledPrefs = context.getSharedPreferences( 45 CRASH_DISABLED_PLUGINS_PREF_FILE, Context.MODE_PRIVATE); 46 mPm = pm; 47 } 48 49 @Override setEnabled(ComponentName component)50 public void setEnabled(ComponentName component) { 51 setDisabled(component, ENABLED); 52 } 53 54 @Override setDisabled(ComponentName component, @DisableReason int reason)55 public void setDisabled(ComponentName component, @DisableReason int reason) { 56 boolean enabled = reason == ENABLED; 57 final int desiredState = enabled ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED 58 : PackageManager.COMPONENT_ENABLED_STATE_DISABLED; 59 mPm.setComponentEnabledSetting(component, desiredState, PackageManager.DONT_KILL_APP); 60 if (enabled) { 61 mAutoDisabledPrefs.edit().remove(component.flattenToString()).apply(); 62 } else { 63 mAutoDisabledPrefs.edit().putInt(component.flattenToString(), reason).apply(); 64 } 65 } 66 67 @Override isEnabled(ComponentName component)68 public boolean isEnabled(ComponentName component) { 69 try { 70 return mPm.getComponentEnabledSetting(component) 71 != PackageManager.COMPONENT_ENABLED_STATE_DISABLED; 72 } catch (IllegalArgumentException ex) { 73 Log.e(TAG, "Package Manager Exception", ex); 74 return false; 75 } 76 } 77 78 @Override getDisableReason(ComponentName componentName)79 public @DisableReason int getDisableReason(ComponentName componentName) { 80 if (isEnabled(componentName)) { 81 return ENABLED; 82 } 83 return mAutoDisabledPrefs.getInt(componentName.flattenToString(), DISABLED_UNKNOWN); 84 } 85 } 86