| /* |
| * 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.keyguard_obsolete; |
| |
| import java.util.List; |
| |
| import android.app.admin.DevicePolicyManager; |
| import android.content.Context; |
| import android.content.res.Configuration; |
| import android.graphics.Rect; |
| |
| import com.android.internal.widget.LockPatternUtils; |
| import com.android.internal.widget.PasswordEntryKeyboardView; |
| |
| import android.os.CountDownTimer; |
| import android.os.SystemClock; |
| import android.provider.Settings; |
| import android.security.KeyStore; |
| import android.text.Editable; |
| import android.text.InputType; |
| import android.text.TextWatcher; |
| import android.text.method.DigitsKeyListener; |
| import android.text.method.TextKeyListener; |
| import android.view.Gravity; |
| import android.view.KeyEvent; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup.LayoutParams; |
| import android.view.inputmethod.EditorInfo; |
| import android.view.inputmethod.InputMethodInfo; |
| import android.view.inputmethod.InputMethodManager; |
| import android.view.inputmethod.InputMethodSubtype; |
| import android.widget.EditText; |
| import android.widget.LinearLayout; |
| import android.widget.Space; |
| 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, |
| OnEditorActionListener { |
| |
| private static final String TAG = "PasswordUnlockScreen"; |
| private final KeyguardUpdateMonitor mUpdateMonitor; |
| private final KeyguardScreenCallback mCallback; |
| |
| private final boolean mIsAlpha; |
| |
| private final EditText mPasswordEntry; |
| private final LockPatternUtils mLockPatternUtils; |
| private final PasswordEntryKeyboardView mKeyboardView; |
| private final PasswordEntryKeyboardHelper mKeyboardHelper; |
| |
| private final int mCreationOrientation; |
| private final int mCreationHardKeyboardHidden; |
| |
| private final KeyguardStatusViewManager mStatusViewManager; |
| private final boolean mUseSystemIME = true; // TODO: Make configurable |
| private boolean mResuming; // used to prevent poking the wakelock during onResume() |
| |
| // 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, Configuration configuration, |
| LockPatternUtils lockPatternUtils, KeyguardUpdateMonitor updateMonitor, |
| KeyguardScreenCallback callback) { |
| super(context); |
| |
| mCreationHardKeyboardHidden = configuration.hardKeyboardHidden; |
| mCreationOrientation = configuration.orientation; |
| mUpdateMonitor = updateMonitor; |
| mCallback = callback; |
| mLockPatternUtils = lockPatternUtils; |
| |
| LayoutInflater layoutInflater = LayoutInflater.from(context); |
| if (mCreationOrientation != Configuration.ORIENTATION_LANDSCAPE) { |
| layoutInflater.inflate(R.layout.keyguard_screen_password_portrait, this, true); |
| } else { |
| layoutInflater.inflate(R.layout.keyguard_screen_password_landscape, this, true); |
| } |
| |
| mStatusViewManager = new KeyguardStatusViewManager(this, mUpdateMonitor, mLockPatternUtils, |
| mCallback, true); |
| |
| final int quality = lockPatternUtils.getKeyguardStoredPasswordQuality(); |
| mIsAlpha = DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC == quality |
| || DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC == quality |
| || DevicePolicyManager.PASSWORD_QUALITY_COMPLEX == quality; |
| |
| mKeyboardView = (PasswordEntryKeyboardView) findViewById(R.id.keyboard); |
| mPasswordEntry = (EditText) findViewById(R.id.passwordEntry); |
| mPasswordEntry.setOnEditorActionListener(this); |
| |
| mKeyboardHelper = new PasswordEntryKeyboardHelper(context, mKeyboardView, this, false); |
| mKeyboardHelper.setEnableHaptics(mLockPatternUtils.isTactileFeedbackEnabled()); |
| boolean imeOrDeleteButtonVisible = false; |
| if (mIsAlpha) { |
| // We always use the system IME for alpha keyboard, so hide lockscreen's soft keyboard |
| mKeyboardHelper.setKeyboardMode(PasswordEntryKeyboardHelper.KEYBOARD_MODE_ALPHA); |
| mKeyboardView.setVisibility(View.GONE); |
| } else { |
| // Use lockscreen's numeric keyboard if the physical keyboard isn't showing |
| mKeyboardHelper.setKeyboardMode(PasswordEntryKeyboardHelper.KEYBOARD_MODE_NUMERIC); |
| mKeyboardView.setVisibility(mCreationHardKeyboardHidden |
| == Configuration.HARDKEYBOARDHIDDEN_NO ? View.INVISIBLE : View.VISIBLE); |
| |
| // The delete button is of the PIN keyboard itself in some (e.g. tablet) layouts, |
| // not a separate view |
| View pinDelete = findViewById(R.id.pinDel); |
| if (pinDelete != null) { |
| pinDelete.setVisibility(View.VISIBLE); |
| imeOrDeleteButtonVisible = true; |
| pinDelete.setOnClickListener(new OnClickListener() { |
| @Override |
| public void onClick(View v) { |
| mKeyboardHelper.handleBackspace(); |
| } |
| }); |
| } |
| } |
| |
| mPasswordEntry.requestFocus(); |
| |
| // This allows keyboards with overlapping qwerty/numeric keys to choose just numeric keys. |
| if (mIsAlpha) { |
| mPasswordEntry.setKeyListener(TextKeyListener.getInstance()); |
| mPasswordEntry.setInputType(InputType.TYPE_CLASS_TEXT |
| | InputType.TYPE_TEXT_VARIATION_PASSWORD); |
| //mStatusViewManager.setHelpMessage(R.string.keyguard_password_enter_password_code, |
| //KeyguardStatusViewManager.LOCK_ICON); |
| } else { |
| mPasswordEntry.setKeyListener(DigitsKeyListener.getInstance()); |
| mPasswordEntry.setInputType(InputType.TYPE_CLASS_NUMBER |
| | InputType.TYPE_NUMBER_VARIATION_PASSWORD); |
| //mStatusViewManager.setHelpMessage(R.string.keyguard_password_enter_pin_code, |
| //KeyguardStatusViewManager.LOCK_ICON); |
| } |
| |
| // Poke the wakelock any time the text is selected or modified |
| mPasswordEntry.setOnClickListener(new OnClickListener() { |
| public void onClick(View v) { |
| mCallback.pokeWakelock(); |
| } |
| }); |
| mPasswordEntry.addTextChangedListener(new TextWatcher() { |
| public void onTextChanged(CharSequence s, int start, int before, int count) { |
| } |
| |
| public void beforeTextChanged(CharSequence s, int start, int count, int after) { |
| } |
| |
| public void afterTextChanged(Editable s) { |
| if (!mResuming) { |
| mCallback.pokeWakelock(); |
| } |
| } |
| }); |
| |
| // If there's more than one IME, enable the IME switcher button |
| View switchImeButton = findViewById(R.id.switch_ime_button); |
| final InputMethodManager imm = (InputMethodManager) getContext().getSystemService( |
| Context.INPUT_METHOD_SERVICE); |
| if (mIsAlpha && switchImeButton != null && hasMultipleEnabledIMEsOrSubtypes(imm, false)) { |
| switchImeButton.setVisibility(View.VISIBLE); |
| imeOrDeleteButtonVisible = true; |
| switchImeButton.setOnClickListener(new OnClickListener() { |
| public void onClick(View v) { |
| mCallback.pokeWakelock(); // Leave the screen on a bit longer |
| imm.showInputMethodPicker(); |
| } |
| }); |
| } |
| |
| // If no icon is visible, reset the left margin on the password field so the text is |
| // still centered. |
| if (!imeOrDeleteButtonVisible) { |
| android.view.ViewGroup.LayoutParams params = mPasswordEntry.getLayoutParams(); |
| if (params instanceof MarginLayoutParams) { |
| ((MarginLayoutParams)params).leftMargin = 0; |
| mPasswordEntry.setLayoutParams(params); |
| } |
| } |
| } |
| |
| /** |
| * Method adapted from com.android.inputmethod.latin.Utils |
| * |
| * @param imm The input method manager |
| * @param shouldIncludeAuxiliarySubtypes |
| * @return true if we have multiple IMEs to choose from |
| */ |
| private boolean hasMultipleEnabledIMEsOrSubtypes(InputMethodManager imm, |
| final boolean shouldIncludeAuxiliarySubtypes) { |
| final List<InputMethodInfo> enabledImis = imm.getEnabledInputMethodList(); |
| |
| // Number of the filtered IMEs |
| int filteredImisCount = 0; |
| |
| for (InputMethodInfo imi : enabledImis) { |
| // We can return true immediately after we find two or more filtered IMEs. |
| if (filteredImisCount > 1) return true; |
| final List<InputMethodSubtype> subtypes = |
| imm.getEnabledInputMethodSubtypeList(imi, true); |
| // IMEs that have no subtypes should be counted. |
| if (subtypes.isEmpty()) { |
| ++filteredImisCount; |
| continue; |
| } |
| |
| int auxCount = 0; |
| for (InputMethodSubtype subtype : subtypes) { |
| if (subtype.isAuxiliary()) { |
| ++auxCount; |
| } |
| } |
| final int nonAuxCount = subtypes.size() - auxCount; |
| |
| // IMEs that have one or more non-auxiliary subtypes should be counted. |
| // If shouldIncludeAuxiliarySubtypes is true, IMEs that have two or more auxiliary |
| // subtypes should be counted as well. |
| if (nonAuxCount > 0 || (shouldIncludeAuxiliarySubtypes && auxCount > 1)) { |
| ++filteredImisCount; |
| continue; |
| } |
| } |
| |
| return filteredImisCount > 1 |
| // imm.getEnabledInputMethodSubtypeList(null, false) will return the current IME's enabled |
| // input method subtype (The current IME should be LatinIME.) |
| || imm.getEnabledInputMethodSubtypeList(null, false).size() > 1; |
| } |
| |
| @Override |
| protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { |
| // send focus to the password field |
| return mPasswordEntry.requestFocus(direction, previouslyFocusedRect); |
| } |
| |
| /** {@inheritDoc} */ |
| public boolean needsInput() { |
| return mUseSystemIME && mIsAlpha; |
| } |
| |
| /** {@inheritDoc} */ |
| public void onPause() { |
| mStatusViewManager.onPause(); |
| } |
| |
| /** {@inheritDoc} */ |
| public void onResume() { |
| mResuming = true; |
| // reset status |
| mStatusViewManager.onResume(); |
| |
| // start fresh |
| mPasswordEntry.setText(""); |
| mPasswordEntry.requestFocus(); |
| |
| // if the user is currently locked out, enforce it. |
| long deadline = mLockPatternUtils.getLockoutAttemptDeadline(); |
| if (deadline != 0) { |
| handleAttemptLockout(deadline); |
| } |
| mResuming = false; |
| } |
| |
| /** {@inheritDoc} */ |
| public void cleanUp() { |
| mUpdateMonitor.removeCallback(this); |
| } |
| |
| private void verifyPasswordAndUnlock() { |
| String entry = mPasswordEntry.getText().toString(); |
| if (mLockPatternUtils.checkPassword(entry)) { |
| mCallback.keyguardDone(true); |
| mCallback.reportSuccessfulUnlockAttempt(); |
| mStatusViewManager.setInstructionText(null); |
| KeyStore.getInstance().password(entry); |
| } 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(); |
| if (0 == (mUpdateMonitor.getFailedAttempts() |
| % LockPatternUtils.FAILED_ATTEMPTS_BEFORE_TIMEOUT)) { |
| long deadline = mLockPatternUtils.setLockoutAttemptDeadline(); |
| handleAttemptLockout(deadline); |
| } |
| mStatusViewManager.setInstructionText( |
| mContext.getString(R.string.lockscreen_password_wrong)); |
| } else if (entry.length() > 0) { |
| mStatusViewManager.setInstructionText( |
| mContext.getString(R.string.lockscreen_password_wrong)); |
| } |
| mPasswordEntry.setText(""); |
| } |
| |
| // Prevent user from using the PIN/Password entry until scheduled deadline. |
| private void handleAttemptLockout(long elapsedRealtimeDeadline) { |
| mPasswordEntry.setEnabled(false); |
| mKeyboardView.setEnabled(false); |
| long elapsedRealtime = SystemClock.elapsedRealtime(); |
| new CountDownTimer(elapsedRealtimeDeadline - elapsedRealtime, 1000) { |
| |
| @Override |
| public void onTick(long millisUntilFinished) { |
| int secondsRemaining = (int) (millisUntilFinished / 1000); |
| String instructions = getContext().getString( |
| R.string.lockscreen_too_many_failed_attempts_countdown, |
| secondsRemaining); |
| mStatusViewManager.setInstructionText(instructions); |
| } |
| |
| @Override |
| public void onFinish() { |
| mPasswordEntry.setEnabled(true); |
| mKeyboardView.setEnabled(true); |
| mStatusViewManager.resetStatusInfo(); |
| } |
| }.start(); |
| } |
| |
| @Override |
| public boolean onKeyDown(int keyCode, KeyEvent event) { |
| mCallback.pokeWakelock(); |
| return false; |
| } |
| |
| @Override |
| protected void onAttachedToWindow() { |
| super.onAttachedToWindow(); |
| Configuration config = getResources().getConfiguration(); |
| if (config.orientation != mCreationOrientation |
| || config.hardKeyboardHidden != mCreationHardKeyboardHidden) { |
| mCallback.recreateMe(config); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| protected void onConfigurationChanged(Configuration newConfig) { |
| super.onConfigurationChanged(newConfig); |
| if (newConfig.orientation != mCreationOrientation |
| || newConfig.hardKeyboardHidden != mCreationHardKeyboardHidden) { |
| mCallback.recreateMe(newConfig); |
| } |
| } |
| |
| 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 || actionId == EditorInfo.IME_ACTION_DONE |
| || actionId == EditorInfo.IME_ACTION_NEXT) { |
| verifyPasswordAndUnlock(); |
| return true; |
| } |
| return false; |
| } |
| } |