src/com/android/settings/ConfirmLockPassword.java - platform/packages/apps/Settings - Git at Google

 /*
  * Copyright (C) 2010 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.settings;

 import android.text.TextUtils;
 import com.android.internal.widget.LockPatternUtils;
 import com.android.internal.widget.PasswordEntryKeyboardHelper;
 import com.android.internal.widget.PasswordEntryKeyboardView;

 import android.app.Activity;
 import android.app.Fragment;
 import android.app.admin.DevicePolicyManager;
 import android.content.Intent;
 import android.os.Bundle;
 import android.os.CountDownTimer;
 import android.os.Handler;
 import android.os.SystemClock;
 import android.os.storage.StorageManager;
 import android.text.Editable;
 import android.text.InputType;
 import android.text.TextWatcher;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.ViewGroup;
 import android.view.inputmethod.EditorInfo;
 import android.widget.Button;
 import android.widget.TextView;
 import android.widget.TextView.OnEditorActionListener;

 public class ConfirmLockPassword extends SettingsActivity {

     public static final String PACKAGE = "com.android.settings";
     public static final String HEADER_TEXT = PACKAGE + ".ConfirmLockPattern.header";

     public static class InternalActivity extends ConfirmLockPassword {
     }

     @Override
     public Intent getIntent() {
         Intent modIntent = new Intent(super.getIntent());
         modIntent.putExtra(EXTRA_SHOW_FRAGMENT, ConfirmLockPasswordFragment.class.getName());
         return modIntent;
     }

     @Override
     protected boolean isValidFragment(String fragmentName) {
         if (ConfirmLockPasswordFragment.class.getName().equals(fragmentName)) return true;
         return false;
     }

     @Override
     public void onCreate(Bundle savedInstanceState) {
         // Disable IME on our window since we provide our own keyboard
         //getWindow().setFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM,
                 //WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);
         super.onCreate(savedInstanceState);
         CharSequence msg = getText(R.string.lockpassword_confirm_your_password_header);
         setTitle(msg);
     }

     public static class ConfirmLockPasswordFragment extends Fragment implements OnClickListener,
             OnEditorActionListener, TextWatcher {
         private static final String KEY_NUM_WRONG_CONFIRM_ATTEMPTS
                 = "confirm_lock_password_fragment.key_num_wrong_confirm_attempts";
         private static final long ERROR_MESSAGE_TIMEOUT = 3000;
         private TextView mPasswordEntry;
         private LockPatternUtils mLockPatternUtils;
         private TextView mHeaderText;
         private Handler mHandler = new Handler();
         private PasswordEntryKeyboardHelper mKeyboardHelper;
         private PasswordEntryKeyboardView mKeyboardView;
         private Button mContinueButton;
         private int mNumWrongConfirmAttempts;
         private CountDownTimer mCountdownTimer;
         private boolean mIsAlpha;

         // required constructor for fragments
         public ConfirmLockPasswordFragment() {

         }

         @Override
         public void onCreate(Bundle savedInstanceState) {
             super.onCreate(savedInstanceState);
             mLockPatternUtils = new LockPatternUtils(getActivity());
             if (savedInstanceState != null) {
                 mNumWrongConfirmAttempts = savedInstanceState.getInt(
                         KEY_NUM_WRONG_CONFIRM_ATTEMPTS, 0);
             }
         }

         @Override
         public View onCreateView(LayoutInflater inflater, ViewGroup container,
                 Bundle savedInstanceState) {
             final int storedQuality = mLockPatternUtils.getKeyguardStoredPasswordQuality();
             View view = inflater.inflate(R.layout.confirm_lock_password, null);
             // Disable IME on our window since we provide our own keyboard

             view.findViewById(R.id.cancel_button).setOnClickListener(this);
             mContinueButton = (Button) view.findViewById(R.id.next_button);
             mContinueButton.setOnClickListener(this);
             mContinueButton.setEnabled(false); // disable until the user enters at least one char

             mPasswordEntry = (TextView) view.findViewById(R.id.password_entry);
             mPasswordEntry.setOnEditorActionListener(this);
             mPasswordEntry.addTextChangedListener(this);

             mKeyboardView = (PasswordEntryKeyboardView) view.findViewById(R.id.keyboard);
             mHeaderText = (TextView) view.findViewById(R.id.headerText);
             mIsAlpha = DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC == storedQuality
                     || DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC == storedQuality
                     || DevicePolicyManager.PASSWORD_QUALITY_COMPLEX == storedQuality;

             Intent intent = getActivity().getIntent();
             if (intent != null) {
                 CharSequence headerMessage = intent.getCharSequenceExtra(HEADER_TEXT);
                 if (TextUtils.isEmpty(headerMessage)) {
                     headerMessage = getString(getDefaultHeader());
                 }
                 mHeaderText.setText(headerMessage);
             }

             final Activity activity = getActivity();
             mKeyboardHelper = new PasswordEntryKeyboardHelper(activity,
                     mKeyboardView, mPasswordEntry);
             mKeyboardHelper.setKeyboardMode(mIsAlpha ?
                     PasswordEntryKeyboardHelper.KEYBOARD_MODE_ALPHA
                     : PasswordEntryKeyboardHelper.KEYBOARD_MODE_NUMERIC);
             mKeyboardView.requestFocus();

             int currentType = mPasswordEntry.getInputType();
             mPasswordEntry.setInputType(mIsAlpha ? currentType
                     : (InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_VARIATION_PASSWORD));

             if (activity instanceof SettingsActivity) {
                 final SettingsActivity sa = (SettingsActivity) activity;
                 int id = getDefaultHeader();
                 CharSequence title = getText(id);
                 sa.setTitle(title);
             }

             return view;
         }

         private int getDefaultHeader() {
             return mIsAlpha ? R.string.lockpassword_confirm_your_password_header
                     : R.string.lockpassword_confirm_your_pin_header;
         }

         @Override
         public void onPause() {
             super.onPause();
             mKeyboardView.requestFocus();
             if (mCountdownTimer != null) {
                 mCountdownTimer.cancel();
                 mCountdownTimer = null;
             }
         }

         @Override
         public void onResume() {
             // TODO Auto-generated method stub
             super.onResume();
             mKeyboardView.requestFocus();
             long deadline = mLockPatternUtils.getLockoutAttemptDeadline();
             if (deadline != 0) {
                 handleAttemptLockout(deadline);
             }
         }

         @Override
         public void onSaveInstanceState(Bundle outState) {
             super.onSaveInstanceState(outState);
             outState.putInt(KEY_NUM_WRONG_CONFIRM_ATTEMPTS, mNumWrongConfirmAttempts);
         }

         private void handleNext() {
             final String pin = mPasswordEntry.getText().toString();
             if (mLockPatternUtils.checkPassword(pin)) {

                 Intent intent = new Intent();
                 if (getActivity() instanceof ConfirmLockPassword.InternalActivity) {
                     intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_TYPE,
                                     mIsAlpha ? StorageManager.CRYPT_TYPE_PASSWORD
                                              : StorageManager.CRYPT_TYPE_PIN);
                     intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD, pin);
                 }

                 getActivity().setResult(RESULT_OK, intent);
                 getActivity().finish();
             } else {
                 if (++mNumWrongConfirmAttempts >= LockPatternUtils.FAILED_ATTEMPTS_BEFORE_TIMEOUT) {
                     long deadline = mLockPatternUtils.setLockoutAttemptDeadline();
                     handleAttemptLockout(deadline);
                 } else {
                     showError(R.string.lockpattern_need_to_unlock_wrong);
                 }
             }
         }

         private void handleAttemptLockout(long elapsedRealtimeDeadline) {
             long elapsedRealtime = SystemClock.elapsedRealtime();
             showError(R.string.lockpattern_too_many_failed_confirmation_attempts_header, 0);
             mPasswordEntry.setEnabled(false);
             mCountdownTimer = new CountDownTimer(
                     elapsedRealtimeDeadline - elapsedRealtime,
                     LockPatternUtils.FAILED_ATTEMPT_COUNTDOWN_INTERVAL_MS) {

                 @Override
                 public void onTick(long millisUntilFinished) {
                     final int secondsCountdown = (int) (millisUntilFinished / 1000);
                     mHeaderText.setText(getString(
                             R.string.lockpattern_too_many_failed_confirmation_attempts_footer,
                             secondsCountdown));
                 }

                 @Override
                 public void onFinish() {
                     mPasswordEntry.setEnabled(true);
                     mHeaderText.setText(getDefaultHeader());
                     mNumWrongConfirmAttempts = 0;
                 }
             }.start();
         }

         public void onClick(View v) {
             switch (v.getId()) {
                 case R.id.next_button:
                     handleNext();
                     break;

                 case R.id.cancel_button:
                     getActivity().setResult(RESULT_CANCELED);
                     getActivity().finish();
                     break;
             }
         }

         private void showError(int msg) {
             showError(msg, ERROR_MESSAGE_TIMEOUT);
         }

         private final Runnable mResetErrorRunnable = new Runnable() {
             public void run() {
                 mHeaderText.setText(getDefaultHeader());
             }
         };

         private void showError(int msg, long timeout) {
             mHeaderText.setText(msg);
             mHeaderText.announceForAccessibility(mHeaderText.getText());
             mPasswordEntry.setText(null);
             mHandler.removeCallbacks(mResetErrorRunnable);
             if (timeout != 0) {
                 mHandler.postDelayed(mResetErrorRunnable, timeout);
             }
         }

         // {@link OnEditorActionListener} methods.
         public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
             // Check if this was the result of hitting the enter or "done" key
             if (actionId == EditorInfo.IME_NULL
                     || actionId == EditorInfo.IME_ACTION_DONE
                     || actionId == EditorInfo.IME_ACTION_NEXT) {
                 handleNext();
                 return true;
             }
             return false;
         }

         // {@link TextWatcher} methods.
         public void beforeTextChanged(CharSequence s, int start, int count, int after) {
         }

         public void onTextChanged(CharSequence s, int start, int before, int count) {
         }

         public void afterTextChanged(Editable s) {
             mContinueButton.setEnabled(mPasswordEntry.getText().length() > 0);
         }
     }
 }
	/*
	* Copyright (C) 2010 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.settings;

	import android.text.TextUtils;
	import com.android.internal.widget.LockPatternUtils;
	import com.android.internal.widget.PasswordEntryKeyboardHelper;
	import com.android.internal.widget.PasswordEntryKeyboardView;

	import android.app.Activity;
	import android.app.Fragment;
	import android.app.admin.DevicePolicyManager;
	import android.content.Intent;
	import android.os.Bundle;
	import android.os.CountDownTimer;
	import android.os.Handler;
	import android.os.SystemClock;
	import android.os.storage.StorageManager;
	import android.text.Editable;
	import android.text.InputType;
	import android.text.TextWatcher;
	import android.view.KeyEvent;
	import android.view.LayoutInflater;
	import android.view.View;
	import android.view.View.OnClickListener;
	import android.view.ViewGroup;
	import android.view.inputmethod.EditorInfo;
	import android.widget.Button;
	import android.widget.TextView;
	import android.widget.TextView.OnEditorActionListener;

	public class ConfirmLockPassword extends SettingsActivity {

	public static final String PACKAGE = "com.android.settings";
	public static final String HEADER_TEXT = PACKAGE + ".ConfirmLockPattern.header";

	public static class InternalActivity extends ConfirmLockPassword {
	}

	@Override
	public Intent getIntent() {
	Intent modIntent = new Intent(super.getIntent());
	modIntent.putExtra(EXTRA_SHOW_FRAGMENT, ConfirmLockPasswordFragment.class.getName());
	return modIntent;
	}

	@Override
	protected boolean isValidFragment(String fragmentName) {
	if (ConfirmLockPasswordFragment.class.getName().equals(fragmentName)) return true;
	return false;
	}

	@Override
	public void onCreate(Bundle savedInstanceState) {
	// Disable IME on our window since we provide our own keyboard
	//getWindow().setFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM,
	//WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);
	super.onCreate(savedInstanceState);
	CharSequence msg = getText(R.string.lockpassword_confirm_your_password_header);
	setTitle(msg);
	}

	public static class ConfirmLockPasswordFragment extends Fragment implements OnClickListener,
	OnEditorActionListener, TextWatcher {
	private static final String KEY_NUM_WRONG_CONFIRM_ATTEMPTS
	= "confirm_lock_password_fragment.key_num_wrong_confirm_attempts";
	private static final long ERROR_MESSAGE_TIMEOUT = 3000;
	private TextView mPasswordEntry;
	private LockPatternUtils mLockPatternUtils;
	private TextView mHeaderText;
	private Handler mHandler = new Handler();
	private PasswordEntryKeyboardHelper mKeyboardHelper;
	private PasswordEntryKeyboardView mKeyboardView;
	private Button mContinueButton;
	private int mNumWrongConfirmAttempts;
	private CountDownTimer mCountdownTimer;
	private boolean mIsAlpha;

	// required constructor for fragments
	public ConfirmLockPasswordFragment() {

	}

	@Override
	public void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	mLockPatternUtils = new LockPatternUtils(getActivity());
	if (savedInstanceState != null) {
	mNumWrongConfirmAttempts = savedInstanceState.getInt(
	KEY_NUM_WRONG_CONFIRM_ATTEMPTS, 0);
	}
	}

	@Override
	public View onCreateView(LayoutInflater inflater, ViewGroup container,
	Bundle savedInstanceState) {
	final int storedQuality = mLockPatternUtils.getKeyguardStoredPasswordQuality();
	View view = inflater.inflate(R.layout.confirm_lock_password, null);
	// Disable IME on our window since we provide our own keyboard

	view.findViewById(R.id.cancel_button).setOnClickListener(this);
	mContinueButton = (Button) view.findViewById(R.id.next_button);
	mContinueButton.setOnClickListener(this);
	mContinueButton.setEnabled(false); // disable until the user enters at least one char

	mPasswordEntry = (TextView) view.findViewById(R.id.password_entry);
	mPasswordEntry.setOnEditorActionListener(this);
	mPasswordEntry.addTextChangedListener(this);

	mKeyboardView = (PasswordEntryKeyboardView) view.findViewById(R.id.keyboard);
	mHeaderText = (TextView) view.findViewById(R.id.headerText);
	mIsAlpha = DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC == storedQuality
	\|\| DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC == storedQuality
	\|\| DevicePolicyManager.PASSWORD_QUALITY_COMPLEX == storedQuality;

	Intent intent = getActivity().getIntent();
	if (intent != null) {
	CharSequence headerMessage = intent.getCharSequenceExtra(HEADER_TEXT);
	if (TextUtils.isEmpty(headerMessage)) {
	headerMessage = getString(getDefaultHeader());
	}
	mHeaderText.setText(headerMessage);
	}

	final Activity activity = getActivity();
	mKeyboardHelper = new PasswordEntryKeyboardHelper(activity,
	mKeyboardView, mPasswordEntry);
	mKeyboardHelper.setKeyboardMode(mIsAlpha ?
	PasswordEntryKeyboardHelper.KEYBOARD_MODE_ALPHA
	: PasswordEntryKeyboardHelper.KEYBOARD_MODE_NUMERIC);
	mKeyboardView.requestFocus();

	int currentType = mPasswordEntry.getInputType();
	mPasswordEntry.setInputType(mIsAlpha ? currentType
	: (InputType.TYPE_CLASS_NUMBER \| InputType.TYPE_NUMBER_VARIATION_PASSWORD));

	if (activity instanceof SettingsActivity) {
	final SettingsActivity sa = (SettingsActivity) activity;
	int id = getDefaultHeader();
	CharSequence title = getText(id);
	sa.setTitle(title);
	}

	return view;
	}

	private int getDefaultHeader() {
	return mIsAlpha ? R.string.lockpassword_confirm_your_password_header
	: R.string.lockpassword_confirm_your_pin_header;
	}

	@Override
	public void onPause() {
	super.onPause();
	mKeyboardView.requestFocus();
	if (mCountdownTimer != null) {
	mCountdownTimer.cancel();
	mCountdownTimer = null;
	}
	}

	@Override
	public void onResume() {
	// TODO Auto-generated method stub
	super.onResume();
	mKeyboardView.requestFocus();
	long deadline = mLockPatternUtils.getLockoutAttemptDeadline();
	if (deadline != 0) {
	handleAttemptLockout(deadline);
	}
	}

	@Override
	public void onSaveInstanceState(Bundle outState) {
	super.onSaveInstanceState(outState);
	outState.putInt(KEY_NUM_WRONG_CONFIRM_ATTEMPTS, mNumWrongConfirmAttempts);
	}

	private void handleNext() {
	final String pin = mPasswordEntry.getText().toString();
	if (mLockPatternUtils.checkPassword(pin)) {

	Intent intent = new Intent();
	if (getActivity() instanceof ConfirmLockPassword.InternalActivity) {
	intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_TYPE,
	mIsAlpha ? StorageManager.CRYPT_TYPE_PASSWORD
	: StorageManager.CRYPT_TYPE_PIN);
	intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD, pin);
	}

	getActivity().setResult(RESULT_OK, intent);
	getActivity().finish();
	} else {
	if (++mNumWrongConfirmAttempts >= LockPatternUtils.FAILED_ATTEMPTS_BEFORE_TIMEOUT) {
	long deadline = mLockPatternUtils.setLockoutAttemptDeadline();
	handleAttemptLockout(deadline);
	} else {
	showError(R.string.lockpattern_need_to_unlock_wrong);
	}
	}
	}

	private void handleAttemptLockout(long elapsedRealtimeDeadline) {
	long elapsedRealtime = SystemClock.elapsedRealtime();
	showError(R.string.lockpattern_too_many_failed_confirmation_attempts_header, 0);
	mPasswordEntry.setEnabled(false);
	mCountdownTimer = new CountDownTimer(
	elapsedRealtimeDeadline - elapsedRealtime,
	LockPatternUtils.FAILED_ATTEMPT_COUNTDOWN_INTERVAL_MS) {

	@Override
	public void onTick(long millisUntilFinished) {
	final int secondsCountdown = (int) (millisUntilFinished / 1000);
	mHeaderText.setText(getString(
	R.string.lockpattern_too_many_failed_confirmation_attempts_footer,
	secondsCountdown));
	}

	@Override
	public void onFinish() {
	mPasswordEntry.setEnabled(true);
	mHeaderText.setText(getDefaultHeader());
	mNumWrongConfirmAttempts = 0;
	}
	}.start();
	}

	public void onClick(View v) {
	switch (v.getId()) {
	case R.id.next_button:
	handleNext();
	break;

	case R.id.cancel_button:
	getActivity().setResult(RESULT_CANCELED);
	getActivity().finish();
	break;
	}
	}

	private void showError(int msg) {
	showError(msg, ERROR_MESSAGE_TIMEOUT);
	}

	private final Runnable mResetErrorRunnable = new Runnable() {
	public void run() {
	mHeaderText.setText(getDefaultHeader());
	}
	};

	private void showError(int msg, long timeout) {
	mHeaderText.setText(msg);
	mHeaderText.announceForAccessibility(mHeaderText.getText());
	mPasswordEntry.setText(null);
	mHandler.removeCallbacks(mResetErrorRunnable);
	if (timeout != 0) {
	mHandler.postDelayed(mResetErrorRunnable, timeout);
	}
	}

	// {@link OnEditorActionListener} methods.
	public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
	// Check if this was the result of hitting the enter or "done" key
	if (actionId == EditorInfo.IME_NULL
	\|\| actionId == EditorInfo.IME_ACTION_DONE
	\|\| actionId == EditorInfo.IME_ACTION_NEXT) {
	handleNext();
	return true;
	}
	return false;
	}

	// {@link TextWatcher} methods.
	public void beforeTextChanged(CharSequence s, int start, int count, int after) {
	}

	public void onTextChanged(CharSequence s, int start, int before, int count) {
	}

	public void afterTextChanged(Editable s) {
	mContinueButton.setEnabled(mPasswordEntry.getText().length() > 0);
	}
	}
	}