1 /* 2 * Copyright (C) 2017 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 package com.android.settings.deviceinfo; 17 18 import android.content.Context; 19 import android.content.Intent; 20 import android.os.Build; 21 import android.os.SystemClock; 22 import android.os.UserHandle; 23 import android.os.UserManager; 24 import android.support.v7.preference.Preference; 25 import android.support.v7.preference.PreferenceScreen; 26 import android.text.TextUtils; 27 import android.util.Log; 28 29 import com.android.settings.core.PreferenceController; 30 import com.android.settings.core.lifecycle.Lifecycle; 31 import com.android.settings.core.lifecycle.LifecycleObserver; 32 import com.android.settings.core.lifecycle.events.OnResume; 33 import com.android.settingslib.RestrictedLockUtils; 34 35 36 public class FirmwareVersionPreferenceController extends PreferenceController 37 implements LifecycleObserver, OnResume { 38 39 private static final String TAG = "FirmwareVersionPref"; 40 private static final String KEY_FIRMWARE_VERSION = "firmware_version"; 41 42 private final UserManager mUserManager; 43 44 private RestrictedLockUtils.EnforcedAdmin mFunDisallowedAdmin; 45 private boolean mFunDisallowedBySystem; 46 47 private long[] mHits = new long[3]; 48 FirmwareVersionPreferenceController(Context context, Lifecycle lifecycle)49 public FirmwareVersionPreferenceController(Context context, Lifecycle lifecycle) { 50 super(context); 51 mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); 52 if (lifecycle != null) { 53 lifecycle.addObserver(this); 54 } 55 } 56 57 @Override isAvailable()58 public boolean isAvailable() { 59 return true; 60 } 61 62 @Override displayPreference(PreferenceScreen screen)63 public void displayPreference(PreferenceScreen screen) { 64 super.displayPreference(screen); 65 final Preference pref = screen.findPreference(KEY_FIRMWARE_VERSION); 66 if (pref != null) { 67 pref.setSummary(Build.VERSION.RELEASE); 68 } 69 } 70 71 @Override getPreferenceKey()72 public String getPreferenceKey() { 73 return KEY_FIRMWARE_VERSION; 74 } 75 76 @Override onResume()77 public void onResume() { 78 mFunDisallowedAdmin = RestrictedLockUtils.checkIfRestrictionEnforced( 79 mContext, UserManager.DISALLOW_FUN, UserHandle.myUserId()); 80 mFunDisallowedBySystem = RestrictedLockUtils.hasBaseUserRestriction( 81 mContext, UserManager.DISALLOW_FUN, UserHandle.myUserId()); 82 } 83 84 @Override handlePreferenceTreeClick(Preference preference)85 public boolean handlePreferenceTreeClick(Preference preference) { 86 if (!TextUtils.equals(preference.getKey(), KEY_FIRMWARE_VERSION)) { 87 return false; 88 } 89 System.arraycopy(mHits, 1, mHits, 0, mHits.length - 1); 90 mHits[mHits.length - 1] = SystemClock.uptimeMillis(); 91 if (mHits[0] >= (SystemClock.uptimeMillis() - 500)) { 92 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_FUN)) { 93 if (mFunDisallowedAdmin != null && !mFunDisallowedBySystem) { 94 RestrictedLockUtils.sendShowAdminSupportDetailsIntent(mContext, 95 mFunDisallowedAdmin); 96 } 97 Log.d(TAG, "Sorry, no fun for you!"); 98 return false; 99 } 100 101 final Intent intent = new Intent(Intent.ACTION_MAIN) 102 .setClassName( 103 "android", com.android.internal.app.PlatLogoActivity.class.getName()); 104 try { 105 mContext.startActivity(intent); 106 return true; 107 } catch (Exception e) { 108 Log.e(TAG, "Unable to start activity " + intent.toString()); 109 } 110 } 111 return false; 112 } 113 } 114