| /* |
| * Copyright (C) 2013 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.internal.app; |
| |
| import android.content.Context; |
| import android.os.Bundle; |
| import android.os.UserManager; |
| import android.text.Editable; |
| import android.text.TextWatcher; |
| import android.view.KeyEvent; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.View.OnClickListener; |
| import android.widget.Button; |
| import android.widget.EditText; |
| import android.widget.TextView; |
| import android.widget.TextView.OnEditorActionListener; |
| |
| import com.android.internal.R; |
| |
| /** |
| * This activity is launched by Settings and other apps to either create a new PIN or |
| * challenge for an existing PIN. The PIN is maintained by UserManager. |
| */ |
| public class RestrictionsPinActivity extends AlertActivity |
| implements OnClickListener, TextWatcher, OnEditorActionListener { |
| |
| protected UserManager mUserManager; |
| protected boolean mHasRestrictionsPin; |
| |
| protected EditText mPinText; |
| protected TextView mPinErrorMessage; |
| private Button mOkButton; |
| private Button mCancelButton; |
| |
| @Override |
| public void onCreate(Bundle icicle) { |
| super.onCreate(icicle); |
| |
| mUserManager = (UserManager) getSystemService(Context.USER_SERVICE); |
| mHasRestrictionsPin = mUserManager.hasRestrictionsPin(); |
| initUi(); |
| setupAlert(); |
| } |
| |
| protected void initUi() { |
| AlertController.AlertParams ap = mAlertParams; |
| ap.mTitle = getString(R.string.restr_pin_enter_admin_pin); |
| LayoutInflater inflater = |
| (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE); |
| ap.mView = inflater.inflate(R.layout.restrictions_pin_challenge, null); |
| |
| mPinErrorMessage = (TextView) ap.mView.findViewById(R.id.pin_error_message); |
| mPinText = (EditText) ap.mView.findViewById(R.id.pin_text); |
| mOkButton = (Button) ap.mView.findViewById(R.id.pin_ok_button); |
| mCancelButton = (Button) ap.mView.findViewById(R.id.pin_cancel_button); |
| |
| mPinText.addTextChangedListener(this); |
| |
| mOkButton.setOnClickListener(this); |
| mCancelButton.setOnClickListener(this); |
| } |
| |
| protected boolean verifyingPin() { |
| return true; |
| } |
| |
| public void onResume() { |
| super.onResume(); |
| |
| setPositiveButtonState(false); |
| boolean hasPin = mUserManager.hasRestrictionsPin(); |
| if (hasPin) { |
| mPinErrorMessage.setVisibility(View.INVISIBLE); |
| mPinText.setOnEditorActionListener(this); |
| updatePinTimer(-1); |
| } else if (verifyingPin()) { |
| setResult(RESULT_OK); |
| finish(); |
| } |
| } |
| |
| protected void setPositiveButtonState(boolean enabled) { |
| mOkButton.setEnabled(enabled); |
| } |
| |
| private boolean updatePinTimer(int pinTimerMs) { |
| if (pinTimerMs < 0) { |
| pinTimerMs = mUserManager.checkRestrictionsPin(null); |
| } |
| boolean enableInput; |
| if (pinTimerMs >= 200) { |
| // Do the count down timer for less than a minute, otherwise just say try again later. |
| if (pinTimerMs <= 60000) { |
| final int seconds = (pinTimerMs + 200) / 1000; |
| final String formatString = getResources().getQuantityString( |
| R.plurals.restr_pin_countdown, |
| seconds); |
| mPinErrorMessage.setText(String.format(formatString, seconds)); |
| } else { |
| mPinErrorMessage.setText(R.string.restr_pin_try_later); |
| } |
| enableInput = false; |
| mPinErrorMessage.setVisibility(View.VISIBLE); |
| mPinText.setText(""); |
| mPinText.postDelayed(mCountdownRunnable, Math.min(1000, pinTimerMs)); |
| } else { |
| enableInput = true; |
| mPinErrorMessage.setText(R.string.restr_pin_incorrect); |
| } |
| mPinText.setEnabled(enableInput); |
| setPositiveButtonState(enableInput); |
| return enableInput; |
| } |
| |
| protected void performPositiveButtonAction() { |
| int result = mUserManager.checkRestrictionsPin(mPinText.getText().toString()); |
| if (result == UserManager.PIN_VERIFICATION_SUCCESS) { |
| setResult(RESULT_OK); |
| finish(); |
| } else if (result >= 0) { |
| mPinErrorMessage.setText(R.string.restr_pin_incorrect); |
| mPinErrorMessage.setVisibility(View.VISIBLE); |
| updatePinTimer(result); |
| mPinText.setText(""); |
| } |
| } |
| |
| @Override |
| public void beforeTextChanged(CharSequence s, int start, int count, int after) { |
| } |
| |
| @Override |
| public void onTextChanged(CharSequence s, int start, int before, int count) { |
| CharSequence pin = mPinText.getText(); |
| setPositiveButtonState(pin != null && pin.length() >= 4); |
| } |
| |
| @Override |
| public void afterTextChanged(Editable s) { |
| } |
| |
| @Override |
| public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { |
| performPositiveButtonAction(); |
| return true; |
| } |
| |
| private Runnable mCountdownRunnable = new Runnable() { |
| public void run() { |
| if (updatePinTimer(-1)) { |
| // If we are no longer counting down, clear the message. |
| mPinErrorMessage.setVisibility(View.INVISIBLE); |
| } |
| } |
| }; |
| |
| @Override |
| public void onClick(View v) { |
| if (v == mOkButton) { |
| performPositiveButtonAction(); |
| } else if (v == mCancelButton) { |
| setResult(RESULT_CANCELED); |
| finish(); |
| } |
| } |
| } |