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/*
* 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.internal.policy.impl;
import android.content.Context;
import android.graphics.Rect;
import com.android.internal.widget.LockPatternUtils;
import com.android.internal.widget.PasswordEntryKeyboardView;
import android.telephony.TelephonyManager;
import android.text.method.DigitsKeyListener;
import android.text.method.TextKeyListener;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.inputmethod.EditorInfo;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.TextView.OnEditorActionListener;
import com.android.internal.R;
import com.android.internal.widget.PasswordEntryKeyboardHelper;
/**
* Displays a dialer-like interface or alphanumeric (latin-1) key entry for the user to enter
* an unlock password
*/
public class PasswordUnlockScreen extends LinearLayout implements KeyguardScreen, View.OnClickListener,
KeyguardUpdateMonitor.ConfigurationChangeCallback, KeyguardUpdateMonitor.InfoCallback,
OnEditorActionListener {
private static final int DIGIT_PRESS_WAKE_MILLIS = 5000;
private final KeyguardUpdateMonitor mUpdateMonitor;
private final KeyguardScreenCallback mCallback;
private final boolean mCreatedWithKeyboardOpen;
private EditText mPasswordEntry;
private Button mEmergencyCallButton;
private LockPatternUtils mLockPatternUtils;
private PasswordEntryKeyboardView mKeyboardView;
private PasswordEntryKeyboardHelper mKeyboardHelper;
// To avoid accidental lockout due to events while the device in in the pocket, ignore
// any passwords with length less than or equal to this length.
private static final int MINIMUM_PASSWORD_LENGTH_BEFORE_REPORT = 3;
public PasswordUnlockScreen(Context context, LockPatternUtils lockPatternUtils,
KeyguardUpdateMonitor updateMonitor, KeyguardScreenCallback callback) {
super(context);
mUpdateMonitor = updateMonitor;
mCallback = callback;
mCreatedWithKeyboardOpen = mUpdateMonitor.isKeyboardOpen();
mLockPatternUtils = lockPatternUtils;
LayoutInflater layoutInflater = LayoutInflater.from(context);
if (mUpdateMonitor.isInPortrait()) {
layoutInflater.inflate(R.layout.keyguard_screen_password_portrait, this, true);
} else {
layoutInflater.inflate(R.layout.keyguard_screen_password_landscape, this, true);
}
boolean isAlpha = lockPatternUtils.getPasswordMode() == LockPatternUtils.MODE_PASSWORD;
mKeyboardView = (PasswordEntryKeyboardView) findViewById(R.id.keyboard);
mPasswordEntry = (EditText) findViewById(R.id.passwordEntry);
mPasswordEntry.setOnEditorActionListener(this);
mEmergencyCallButton = (Button) findViewById(R.id.emergencyCall);
mEmergencyCallButton.setOnClickListener(this);
mLockPatternUtils.updateEmergencyCallButtonState(mEmergencyCallButton);
mUpdateMonitor.registerConfigurationChangeCallback(this);
mKeyboardHelper = new PasswordEntryKeyboardHelper(context, mKeyboardView, this);
mKeyboardHelper.setKeyboardMode(isAlpha ? PasswordEntryKeyboardHelper.KEYBOARD_MODE_ALPHA
: PasswordEntryKeyboardHelper.KEYBOARD_MODE_NUMERIC);
mKeyboardView.setVisibility(mCreatedWithKeyboardOpen ? View.INVISIBLE : View.VISIBLE);
mPasswordEntry.requestFocus();
// This allows keyboards with overlapping qwerty/numeric keys to choose just the
// numeric keys.
if (isAlpha) {
mPasswordEntry.setKeyListener(TextKeyListener.getInstance());
} else {
mPasswordEntry.setKeyListener(DigitsKeyListener.getInstance());
}
mKeyboardHelper.setVibratePattern(mLockPatternUtils.isTactileFeedbackEnabled() ?
com.android.internal.R.array.config_virtualKeyVibePattern : 0);
}
@Override
protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) {
// send focus to the password field
return mPasswordEntry.requestFocus(direction, previouslyFocusedRect);
}
/** {@inheritDoc} */
public boolean needsInput() {
return false;
}
/** {@inheritDoc} */
public void onPause() {
}
/** {@inheritDoc} */
public void onResume() {
// start fresh
mPasswordEntry.setText("");
mPasswordEntry.requestFocus();
mLockPatternUtils.updateEmergencyCallButtonState(mEmergencyCallButton);
}
/** {@inheritDoc} */
public void cleanUp() {
mUpdateMonitor.removeCallback(this);
}
public void onClick(View v) {
if (v == mEmergencyCallButton) {
mCallback.takeEmergencyCallAction();
}
mCallback.pokeWakelock();
}
private void verifyPasswordAndUnlock() {
String entry = mPasswordEntry.getText().toString();
if (mLockPatternUtils.checkPassword(entry)) {
mCallback.keyguardDone(true);
mCallback.reportSuccessfulUnlockAttempt();
} else if (entry.length() > MINIMUM_PASSWORD_LENGTH_BEFORE_REPORT ) {
// to avoid accidental lockout, only count attempts that are long enough to be a
// real password. This may require some tweaking.
mCallback.reportFailedUnlockAttempt();
}
mPasswordEntry.setText("");
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
mCallback.pokeWakelock();
return false;
}
public void onOrientationChange(boolean inPortrait) {
mCallback.recreateMe();
}
public void onKeyboardChange(boolean isKeyboardOpen) {
// Don't show the soft keyboard when the real keyboard is open
mKeyboardView.setVisibility(isKeyboardOpen ? View.INVISIBLE : View.VISIBLE);
}
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
// Check if this was the result of hitting the enter key
if (actionId == EditorInfo.IME_NULL) {
verifyPasswordAndUnlock();
return true;
}
return false;
}
public void onPhoneStateChanged(String newState) {
mLockPatternUtils.updateEmergencyCallButtonState(mEmergencyCallButton);
}
public void onRefreshBatteryInfo(boolean showBatteryInfo, boolean pluggedIn, int batteryLevel) {
}
public void onRefreshCarrierInfo(CharSequence plmn, CharSequence spn) {
}
public void onRingerModeChanged(int state) {
}
public void onTimeChanged() {
}
}
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