diff options
Diffstat (limited to 'policy/src/com/android/internal/policy/impl/FingerUnlockScreen.java')
| -rw-r--r-- | policy/src/com/android/internal/policy/impl/FingerUnlockScreen.java | 1402 |
1 files changed, 1402 insertions, 0 deletions
diff --git a/policy/src/com/android/internal/policy/impl/FingerUnlockScreen.java b/policy/src/com/android/internal/policy/impl/FingerUnlockScreen.java new file mode 100644 index 0000000..eab7e77 --- /dev/null +++ b/policy/src/com/android/internal/policy/impl/FingerUnlockScreen.java @@ -0,0 +1,1402 @@ +/* + * Copyright (C) 2008 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 dalvik.system.DexClassLoader; + +import android.content.Context; +import android.content.ContextWrapper; +import android.content.res.Configuration; +import android.content.res.Resources; +import android.os.CountDownTimer; +import android.os.SystemClock; +import android.view.LayoutInflater; +import android.view.View; +import android.view.ViewGroup; +import android.view.MotionEvent; +import android.widget.Button; +import android.widget.TextView; +import android.text.format.DateFormat; +import android.text.TextUtils; +import android.util.Log; +import com.android.internal.R; +import com.android.internal.telephony.IccCard; +import com.android.internal.widget.LinearLayoutWithDefaultTouchRecepient; +import com.android.internal.widget.LockPatternUtils; +import com.android.internal.widget.LockPatternView; +import com.android.internal.widget.LockPatternView.Cell; + +import java.util.List; +import java.util.Date; + +// For the finger keyguard +import android.os.Handler; +import android.os.Vibrator; +import android.os.PowerManager; +import android.os.Message; +import android.os.SystemProperties; + +import com.authentec.AuthentecHelper; +import com.authentec.GfxEngineRelayService; + + +/** + * This is the screen that shows the 9 circle unlock widget and instructs + * the user how to unlock their device, or make an emergency call. + */ +class FingerUnlockScreen extends LinearLayoutWithDefaultTouchRecepient + implements KeyguardScreen, KeyguardUpdateMonitor.InfoCallback, + KeyguardUpdateMonitor.SimStateCallback, + GfxEngineRelayService.Receiver { + + private static final boolean DEBUG = true; + private static final boolean DEBUG_CONFIGURATION = true; + private static final String TAG = "FingerUnlockScreen"; + + // how long we stay awake once the user is ready to enter a pattern + private static final int UNLOCK_FINGER_WAKE_INTERVAL_MS = 7000; + + private int mFailedPatternAttemptsSinceLastTimeout = 0; + private int mTotalFailedPatternAttempts = 0; + private CountDownTimer mCountdownTimer = null; + + private CountDownTimer mCountdownTimerToast = null; + private final LockPatternUtils mLockPatternUtils; + private final KeyguardUpdateMonitor mUpdateMonitor; + private final KeyguardScreenCallback mCallback; + + /** + * whether there is a fallback option available when the pattern is forgotten. + */ + private boolean mEnableFallback; + + private static boolean m_bVerifyied; + + // Do we still hold a wakelock? + // Initialize this value to "true" since the screen is off at the very beginning. + private static boolean m_bPaused = true; + + // The key guard would be put into lockout state every four bad swipes. + private static boolean m_bAttemptLockout; + + // A flag to indicate if you are currently connected to the GfxEngine or not. + private boolean m_bGfxEngineAttached; + + // A flag to indicate that there is a delayed #cancel command to send. + private boolean m_bSendDelayedCancel; + + // Make sure that you do not double-cancel. + private boolean m_bCancelHasBeenSent; + + // A flag to indicate that there is a successive power on to the previous power off. + // If the previous #cancel command has not terminate the verify runner yet, set this + // flag to let the verify runner start again. + private boolean m_bStartAgain; + + // Below four are related with tactile feedback... + // A flag to indicate if tactile feedback is supported. + private boolean mTactileFeedbackEnabled = false; + // Vibrator pattern for creating a tactile bump + private static final long[] DEFAULT_VIBE_PATTERN = {0, 1, 40, 41}; + // Vibrator for creating tactile feedback + private Vibrator vibe; + // Vibration pattern, either default or customized + private long[] mVibePattern; + + private String mDateFormatString; + + private TextView mCarrier; + private TextView mDate; + + // are we showing battery information? + private boolean mShowingBatteryInfo = false; + + // last known plugged in state + private boolean mPluggedIn = false; + + // last known battery level + private int mBatteryLevel = 100; + + private String mNextAlarm = null; + + private String mInstructions = null; + private TextView mStatus1; + private TextView mStatusSep; + private TextView mStatus2; + private TextView mUserPrompt; + private TextView mErrorPrompt; + + private ViewGroup mFooterNormal; + private ViewGroup mFooterForgotPattern; + + /** + * Keeps track of the last time we poked the wake lock during dispatching + * of the touch event, initalized to something gauranteed to make us + * poke it when the user starts drawing the pattern. + * @see #dispatchTouchEvent(android.view.MotionEvent) + */ + private long mLastPokeTime = -UNLOCK_FINGER_WAKE_INTERVAL_MS; + + /** + * Useful for clearing out the wrong pattern after a delay + */ + private Runnable mCancelPatternRunnable = new Runnable() { + public void run() { + //mLockPatternView.clearPattern(); + } + }; + + private Button mForgotPatternButton; + private Button mEmergencyAlone; + private Button mEmergencyTogether; + private int mCreationOrientation; + + static Thread mExecutionThread = null; + private Thread mUiThread; + private boolean mbFeedbackDelivered = false; + private VerifyRunner mVerifyRunner = new VerifyRunner(); + private Context m_Context; + + /** High level access to the power manager for WakeLocks */ + private PowerManager mPM; + + /** + * Used to keep the device awake while the keyguard is showing, i.e for + * calls to {@link #pokeWakelock()} + * Note: Unlike the mWakeLock in KeyguardViewMediator (which has the + * ACQUIRE_CAUSES_WAKEUP flag), this one doesn't actually turn + * on the illumination. Instead, they cause the illumination to + * remain on once it turns on. + */ + private PowerManager.WakeLock mWakeLock; + + /** + * Does not turn on screen, used to keep the device awake until the + * fingerprint verification is ready. The KeyguardViewMediator only + * poke the wake lock for 5 seconds, which is not enough for the + * initialization of the fingerprint verification. + */ + private PowerManager.WakeLock mHandOffWakeLock; + + private int mWakelockSequence; + + // used for handler messages + private static final int TIMEOUT = 1; + + enum FooterMode { + Normal, + ForgotLockPattern, + VerifyUnlocked + } + + private void updateFooter(FooterMode mode) { + switch (mode) { + case Normal: + mFooterNormal.setVisibility(View.VISIBLE); + mFooterForgotPattern.setVisibility(View.GONE); + break; + case ForgotLockPattern: + mFooterNormal.setVisibility(View.GONE); + mFooterForgotPattern.setVisibility(View.VISIBLE); + mForgotPatternButton.setVisibility(View.VISIBLE); + break; + case VerifyUnlocked: + mFooterNormal.setVisibility(View.GONE); + mFooterForgotPattern.setVisibility(View.GONE); + } + } + + private AuthentecHelper fingerhelper = null; + + /** + * @param context The context. + * @param lockPatternUtils Used to lookup lock pattern settings. + * @param updateMonitor Used to lookup state affecting keyguard. + * @param callback Used to notify the manager when we're done, etc. + * @param totalFailedAttempts The current number of failed attempts. + * @param enableFallback True if a backup unlock option is available when the user has forgotten + * their pattern (e.g they have a google account so we can show them the account based + * backup option). + */ + FingerUnlockScreen(Context context, + Configuration configuration, + LockPatternUtils LockPatternUtils, + KeyguardUpdateMonitor updateMonitor, + KeyguardScreenCallback callback, + int totalFailedAttempts) { + super(context); + + fingerhelper = AuthentecHelper.getInstance(context); + + m_Context = context; + + /* goToSleep of PowerManagerService class would cancel all of the wake locks. */ + mPM = (PowerManager) context.getSystemService(Context.POWER_SERVICE); + mWakeLock = mPM.newWakeLock( + PowerManager.FULL_WAKE_LOCK, + "FpKeyguard"); + mWakeLock.setReferenceCounted(false); + mHandOffWakeLock = mPM.newWakeLock( + PowerManager.FULL_WAKE_LOCK, + "FpKeyguardHandOff"); + mHandOffWakeLock.setReferenceCounted(false); + + mLockPatternUtils = LockPatternUtils; + mUpdateMonitor = updateMonitor; + mCallback = callback; + mTotalFailedPatternAttempts = totalFailedAttempts; + mFailedPatternAttemptsSinceLastTimeout = + totalFailedAttempts % mLockPatternUtils.FAILED_ATTEMPTS_BEFORE_TIMEOUT; + + if (DEBUG) Log.d(TAG, + "UnlockScreen() ctor: totalFailedAttempts=" + + totalFailedAttempts + ", mFailedPat...=" + + mFailedPatternAttemptsSinceLastTimeout + ); + + m_bVerifyied = false; + m_bAttemptLockout = false; + + m_bGfxEngineAttached = false; + m_bSendDelayedCancel = false; + m_bCancelHasBeenSent = false; + m_bStartAgain = false; + + mTactileFeedbackEnabled = mLockPatternUtils.isTactileFeedbackEnabled(); + if (mTactileFeedbackEnabled) { + if (DEBUG) Log.d(TAG, "Create a vibrator"); + vibe = new Vibrator(); + } + + mCreationOrientation = configuration.orientation; + + LayoutInflater inflater = LayoutInflater.from(context); + if (mCreationOrientation != Configuration.ORIENTATION_LANDSCAPE) { + if (DEBUG) Log.d(TAG, "UnlockScreen() : portrait"); + inflater.inflate(R.layout.keyguard_screen_finger_portrait, this, true); + } else { + if (DEBUG) Log.d(TAG, "UnlockScreen() : landscape"); + inflater.inflate(R.layout.keyguard_screen_finger_landscape, this, true); + } + + mCarrier = (TextView) findViewById(R.id.carrier); + mDate = (TextView) findViewById(R.id.date); + + mDateFormatString = getContext().getString(R.string.full_wday_month_day_no_year); + refreshTimeAndDateDisplay(); + + mStatus1 = (TextView) findViewById(R.id.status1); + mStatusSep = (TextView) findViewById(R.id.statusSep); + mStatus2 = (TextView) findViewById(R.id.status2); + + resetStatusInfo(); + + mUserPrompt = (TextView) findViewById(R.id.usageMessage); + // Temporary hints for the emulator. + mUserPrompt.setText(R.string.keyguard_finger_screen_off); + mErrorPrompt = (TextView) findViewById(R.id.errorMessage); + + mFooterNormal = (ViewGroup) findViewById(R.id.footerNormal); + mFooterForgotPattern = (ViewGroup) findViewById(R.id.footerForgotPattern); + + mUiThread = Thread.currentThread(); + GfxEngineRelayService.setLocalReceiver(this); + + // emergency call buttons + final OnClickListener emergencyClick = new OnClickListener() { + public void onClick(View v) { + // Cancel the Verify thread. + mUserPrompt.setText(""); + if (mExecutionThread != null && mExecutionThread.isAlive()) { + if (!m_bGfxEngineAttached) { + if (DEBUG) Log.d(TAG,"emergencyClick send cancel delayed"); + m_bSendDelayedCancel = true; + } else { + if (DEBUG) Log.d(TAG,"emergencyClick send cancel"); + if (!m_bCancelHasBeenSent) + { + GfxEngineRelayService.queueEvent("#cancel"); + m_bCancelHasBeenSent = true; + } + } + } + mCallback.takeEmergencyCallAction(); + } + }; + + mEmergencyAlone = (Button) findViewById(R.id.emergencyCallAlone); + mEmergencyAlone.setFocusable(false); // touch only! + mEmergencyAlone.setOnClickListener(emergencyClick); + mEmergencyTogether = (Button) findViewById(R.id.emergencyCallTogether); + mEmergencyTogether.setFocusable(false); + mEmergencyTogether.setOnClickListener(emergencyClick); + refreshEmergencyButtonText(); + + mForgotPatternButton = (Button) findViewById(R.id.forgotPattern); + mForgotPatternButton.setText(R.string.lockscreen_forgot_finger_button_text); + mForgotPatternButton.setOnClickListener(new OnClickListener() { + + public void onClick(View v) { + mCallback.forgotPattern(true); + } + }); + + if (mTactileFeedbackEnabled) { + // allow vibration pattern to be customized + if (DEBUG) Log.d(TAG, "Load vibration pattern"); + mVibePattern = loadVibratePattern(com.android.internal.R.array.config_virtualKeyVibePattern); + } + + // assume normal footer mode for now + updateFooter(FooterMode.Normal); + + updateMonitor.registerInfoCallback(this); + updateMonitor.registerSimStateCallback(this); + setFocusableInTouchMode(true); + + // Required to get Marquee to work. + mCarrier.setSelected(true); + mCarrier.setTextColor(0xffffffff); + + // until we get an update... + mCarrier.setText( + LockScreen.getCarrierString( + mUpdateMonitor.getTelephonyPlmn(), + mUpdateMonitor.getTelephonySpn())); + } + + private void refreshEmergencyButtonText() { + mLockPatternUtils.updateEmergencyCallButtonState(mEmergencyAlone); + mLockPatternUtils.updateEmergencyCallButtonState(mEmergencyTogether); + } + + public void setEnableFallback(boolean state) { + if (DEBUG) Log.d(TAG, "setEnableFallback(" + state + ")"); + mEnableFallback = state; + } + + private void resetStatusInfo() { + mInstructions = null; + mShowingBatteryInfo = mUpdateMonitor.shouldShowBatteryInfo(); + mPluggedIn = mUpdateMonitor.isDevicePluggedIn(); + mBatteryLevel = mUpdateMonitor.getBatteryLevel(); + mNextAlarm = mLockPatternUtils.getNextAlarm(); + updateStatusLines(); + } + + private void updateStatusLines() { + if (mInstructions != null) { + // instructions only + if (DEBUG) Log.d(TAG,"instructions only"); + mStatus1.setText(mInstructions); + if (TextUtils.isEmpty(mInstructions)) { + mStatus1.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0); + } else { + mStatus1.setCompoundDrawablesWithIntrinsicBounds( + R.drawable.ic_lock_idle_lock, 0, 0, 0); + } + + mStatus1.setVisibility(View.VISIBLE); + mStatusSep.setVisibility(View.GONE); + mStatus2.setVisibility(View.GONE); + } else if (mShowingBatteryInfo && mNextAlarm == null) { + // battery only + if (DEBUG) Log.d(TAG,"battery only"); + if (mPluggedIn) { + if (mBatteryLevel >= 100) { + mStatus1.setText(getContext().getString(R.string.lockscreen_charged)); + } else { + mStatus1.setText(getContext().getString(R.string.lockscreen_plugged_in, mBatteryLevel)); + } + } else { + mStatus1.setText(getContext().getString(R.string.lockscreen_low_battery, mBatteryLevel)); + } + mStatus1.setCompoundDrawablesWithIntrinsicBounds(R.drawable.ic_lock_idle_charging, 0, 0, 0); + + mStatus1.setVisibility(View.VISIBLE); + mStatusSep.setVisibility(View.GONE); + mStatus2.setVisibility(View.GONE); + + } else if (mNextAlarm != null && !mShowingBatteryInfo) { + // alarm only + if (DEBUG) Log.d(TAG,"alarm only"); + mStatus1.setText(mNextAlarm); + mStatus1.setCompoundDrawablesWithIntrinsicBounds(R.drawable.ic_lock_idle_alarm, 0, 0, 0); + + mStatus1.setVisibility(View.VISIBLE); + mStatusSep.setVisibility(View.GONE); + mStatus2.setVisibility(View.GONE); + } else if (mNextAlarm != null && mShowingBatteryInfo) { + // both battery and next alarm + if (DEBUG) Log.d(TAG,"both battery and next alarm"); + mStatus1.setText(mNextAlarm); + mStatusSep.setText("|"); + mStatus2.setText(getContext().getString( + R.string.lockscreen_battery_short, + Math.min(100, mBatteryLevel))); + mStatus1.setCompoundDrawablesWithIntrinsicBounds(R.drawable.ic_lock_idle_alarm, 0, 0, 0); + if (mPluggedIn) { + mStatus2.setCompoundDrawablesWithIntrinsicBounds(R.drawable.ic_lock_idle_charging, 0, 0, 0); + } else { + mStatus2.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0); + } + + mStatus1.setVisibility(View.VISIBLE); + mStatusSep.setVisibility(View.VISIBLE); + mStatus2.setVisibility(View.VISIBLE); + } else { + // nothing specific to show; show general instructions + if (DEBUG) Log.d(TAG,"nothing specific to show"); + // "keyguard_finger_please_swipe" string would be showed when the TSM is ready. + //mStatus1.setText(R.string.lockscreen_pattern_instructions); + mStatus1.setCompoundDrawablesWithIntrinsicBounds(R.drawable.ic_lock_idle_lock, 0, 0, 0); + + mStatus1.setVisibility(View.VISIBLE); + mStatusSep.setVisibility(View.GONE); + mStatus2.setVisibility(View.GONE); + } + } + + + private void refreshTimeAndDateDisplay() { + mDate.setText(DateFormat.format(mDateFormatString, new Date())); + } + + private long[] loadVibratePattern(int id) { + int[] pattern = null; + try { + pattern = getResources().getIntArray(id); + } catch (Resources.NotFoundException e) { + Log.e(TAG, "Vibrate pattern missing, using default", e); + } + if (pattern == null) { + return DEFAULT_VIBE_PATTERN; + } + + long[] tmpPattern = new long[pattern.length]; + for (int i = 0; i < pattern.length; i++) { + tmpPattern[i] = pattern[i]; + } + return tmpPattern; + } + + @Override + public boolean dispatchTouchEvent(MotionEvent ev) { + // as long as the user is entering a pattern (i.e sending a touch + // event that was handled by this screen), keep poking the + // wake lock so that the screen will stay on. + final boolean result = super.dispatchTouchEvent(ev); + if (result && + ((SystemClock.elapsedRealtime() - mLastPokeTime) + > (UNLOCK_FINGER_WAKE_INTERVAL_MS - 100))) { + mLastPokeTime = SystemClock.elapsedRealtime(); + } + return result; + } + + + // ---------- InfoCallback + + /** {@inheritDoc} */ + public void onRefreshBatteryInfo(boolean showBatteryInfo, boolean pluggedIn, int batteryLevel) { + mShowingBatteryInfo = showBatteryInfo; + mPluggedIn = pluggedIn; + mBatteryLevel = batteryLevel; + updateStatusLines(); + } + + /** {@inheritDoc} */ + public void onTimeChanged() { + refreshTimeAndDateDisplay(); + } + + /** {@inheritDoc} */ + public void onRefreshCarrierInfo(CharSequence plmn, CharSequence spn) { + mCarrier.setText(LockScreen.getCarrierString(plmn, spn)); + } + + /** {@inheritDoc} */ + public void onRingerModeChanged(int state) { + // not currently used + } + + // ---------- SimStateCallback + + /** {@inheritDoc} */ + public void onSimStateChanged(IccCard.State simState) { + } + + @Override + protected void onAttachedToWindow() { + super.onAttachedToWindow(); + if (DEBUG_CONFIGURATION) { + Log.v(TAG, "***** FINGERPRINT ATTACHED TO WINDOW"); + Log.v(TAG, "Cur orient=" + mCreationOrientation + + ", new config=" + getResources().getConfiguration()); + } + if (getResources().getConfiguration().orientation != mCreationOrientation) { + mCallback.recreateMe(getResources().getConfiguration()); + } + } + + + /** {@inheritDoc} */ + @Override + protected void onConfigurationChanged(Configuration newConfig) { + super.onConfigurationChanged(newConfig); + if (DEBUG_CONFIGURATION) { + Log.v(TAG, "***** FINGERPRINT CONFIGURATION CHANGED"); + Log.v(TAG, "Cur orient=" + mCreationOrientation + + ", new config=" + getResources().getConfiguration()); + } + if (newConfig.orientation != mCreationOrientation) { + if (DEBUG) Log.d(TAG,"Orientation changed, recreateMe"); + mCallback.recreateMe(newConfig); + } + } + + /** {@inheritDoc} */ + public void onKeyboardChange(boolean isKeyboardOpen) {} + + /** {@inheritDoc} */ + public boolean needsInput() { + return false; + } + + /** {@inheritDoc} */ + public void onPause() { + if (DEBUG) Log.d(TAG,"onPause"); + + // Temporary hints for the emulator. + mUserPrompt.setText(R.string.keyguard_finger_screen_off); + mErrorPrompt.setText(""); + + if (mWakeLock.isHeld()) { + /* Must release since it is a screen lock. */ + mHandler.removeMessages(TIMEOUT); + mWakeLock.release(); + } + + if (mHandOffWakeLock.isHeld()) { + /* Must release since it is a screen lock. */ + mHandOffWakeLock.release(); + } + + m_bVerifyied = false; + m_bPaused = true; + m_bStartAgain = false; + if (mCountdownTimer != null) { + mCountdownTimer.cancel(); + mCountdownTimer = null; + } + if (mCountdownTimerToast != null) { + mCountdownTimerToast.cancel(); + mCountdownTimerToast = null; + } + if (mExecutionThread != null && mExecutionThread.isAlive()) { + if (!m_bGfxEngineAttached) { + if (DEBUG) Log.d(TAG,"onPause send cancel delayed"); + m_bSendDelayedCancel = true; + } else { + if (DEBUG) Log.d(TAG,"onPause send cancel"); + if (!m_bCancelHasBeenSent) + { + GfxEngineRelayService.queueEvent("#cancel"); + m_bCancelHasBeenSent = true; + } + } + } + } + + private void resumeViews() { + if ((mExecutionThread!=null)&&(mExecutionThread.isAlive())) { + if (DEBUG) Log.d(TAG,"resumeViews: Thread in execution"); + return; + } + + if (!mLockPatternUtils.savedFingerExists()) { + if (DEBUG) Log.d(TAG,"resumeViews: No saved finger"); + // By design, this situation should never happen. + // If finger lock is in use, we should only allow the finger settings menu + // to delete all enrolled fingers. Other applications, like TSMDemo, should + // not get access to the database. + // + // Simply disable the finger lock and exit. + mLockPatternUtils.setLockFingerEnabled(false); + return; + } + + // reset header + resetStatusInfo(); + if (DEBUG) Log.d(TAG,"resumeViews: m_bVerifyied=" + m_bVerifyied); + + // show "forgot pattern?" button if we have an alternate authentication method + mForgotPatternButton.setVisibility(View.INVISIBLE); + + // if the user is currently locked out, enforce it. + long deadline = mLockPatternUtils.getLockoutAttemptDeadline(); + if (deadline != 0) { + if (DEBUG) Log.d(TAG,"resumeViews: In lockout state"); + handleAttemptLockout(deadline); + } else { + // The onFinish() method of the CountDownTimer object would not be + // called when the screen is off. So we need to reset the m_bAttemptLockout + // if the lockout has finished. + m_bAttemptLockout = false; + } + + // the footer depends on how many total attempts the user has failed + if (mCallback.isVerifyUnlockOnly()) { + updateFooter(FooterMode.VerifyUnlocked); + } else if (mEnableFallback && + (mTotalFailedPatternAttempts >= mLockPatternUtils.FAILED_ATTEMPTS_BEFORE_TIMEOUT)) { + updateFooter(FooterMode.ForgotLockPattern); + } else { + updateFooter(FooterMode.Normal); + } + + refreshEmergencyButtonText(); + } + + /** {@inheritDoc} */ + public void onResume() { + // Resume the finger unlock screen. + resumeViews(); + + // Launch a TSM Verify thread when the screen is turned on. + if (mPM.isScreenOn()) { + onScreenOn(); + } + } + + private void onScreenOn() { + if (DEBUG) Log.d(TAG,"onScreenOn()"); + + m_bPaused = false; + if (m_bSendDelayedCancel) { + /* If "cancel" has not been sent out, simply ignore it. */ + m_bSendDelayedCancel = false; + } + + /* Thread in execution, no need to create & start again. */ + if ((mExecutionThread!=null)&&(mExecutionThread.isAlive())) { + if (DEBUG) Log.d(TAG,"onScreenOn: Thread in execution"); + if (m_bCancelHasBeenSent) { + /* If "cancel" has been sent, set this flag to indicate the verify runner to start again. */ + m_bStartAgain = true; + } + return; + } + + // Temporary hints for the emulator. + mUserPrompt.setText(R.string.keyguard_finger_screen_on); + + if (mLockPatternUtils.isLockFingerEnabled()&&!m_bVerifyied) { + /** + * acquire the handoff lock that will keep the cpu running. this will + * be released once the fingerprint keyguard has set the verification up + * and poked the mWakelock of itself (not the one of the KeyguradViewMediator). + */ + mHandOffWakeLock.acquire(); + + // Create a thread for verification. + mExecutionThread = new Thread(mVerifyRunner); + + // Only start the verification when the screen is not in lockout state. + if (!m_bAttemptLockout) + { + mExecutionThread.start(); + } + else + { + // Release the wakelock early if the screen is in lockout state now. + pokeWakelock(1000); + } + } + } + + /** {@inheritDoc} */ + public void cleanUp() { + if (mExecutionThread != null && mExecutionThread.isAlive()) { + if (!m_bGfxEngineAttached) { + if (DEBUG) Log.d(TAG,"cleanUp send cancel delayed"); + m_bSendDelayedCancel = true; + } else { + if (DEBUG) Log.d(TAG,"cleanUp send cancel"); + if (!m_bCancelHasBeenSent) + { + GfxEngineRelayService.queueEvent("#cancel"); + m_bCancelHasBeenSent = true; + } + } + } + + // must make sure that the verify runner has terminated. + while (mExecutionThread != null && mExecutionThread.isAlive()) { + try { + // Set a flag to indicate the verify runner to terminate itself. + m_bPaused = true; + mUiThread.sleep(50); + } catch (InterruptedException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } + } + + mUpdateMonitor.removeCallback(this); + } + + @Override + public void onWindowFocusChanged(boolean hasWindowFocus) { + super.onWindowFocusChanged(hasWindowFocus); + if (hasWindowFocus) { + // when timeout dialog closes we want to update our state + //onResume(); + if (DEBUG) Log.d(TAG,"onWindowFocusChanged"); + resumeViews(); + + // Start the verification if screen is on. + if (mPM.isScreenOn()) { + if ( (!m_bAttemptLockout) && (!m_bPaused) && + (mExecutionThread != null) && (!(mExecutionThread.isAlive())) ) + { + if (DEBUG) Log.d(TAG,"Screen is on, start LAP verification"); + /** + * acquire the handoff lock that will keep the cpu running. this will + * be released once the fingerprint keyguard has set the verification up + * and poked the mWakelock of itself (not the one of the KeyguradViewMediator). + */ + mHandOffWakeLock.acquire(); + + if (mExecutionThread.getState() == Thread.State.TERMINATED) + { + // If the thread state is TERMINATED, it cannot be start() again. + // Create a thread for verification. + mExecutionThread = new Thread(mVerifyRunner); + mExecutionThread.start(); + } + else + { + if (DEBUG) Log.d(TAG,"Verify thread exists, just start it"); + mExecutionThread.start(); + } + } + } + } + } + + public final void runOnUiThread(Runnable action) { + if (Thread.currentThread() != mUiThread) { + mHandler .post(action); + } else { + action.run(); + } + } + + private void pokeWakelock(int holdMs) { + synchronized (this) { + if (DEBUG) Log.d(TAG, "pokeWakelock(" + holdMs + ")"); + mWakeLock.acquire(); + mHandler.removeMessages(TIMEOUT); + mWakelockSequence++; + Message msg = mHandler.obtainMessage(TIMEOUT, mWakelockSequence, 0); + mHandler.sendMessageDelayed(msg, holdMs); + } + + if (mHandOffWakeLock.isHeld()) { + /** + * The fingerprint keyguard has been set up, and has poked the keyguard + * main wake lock. It's time to release the handoff wake lock. + */ + mHandOffWakeLock.release(); + } + } + + /** + * This handler will be associated with the policy thread, which will also + * be the UI thread of the keyguard. Since the apis of the policy, and therefore + * this class, can be called by other threads, any action that directly + * interacts with the keyguard ui should be posted to this handler, rather + * than called directly. + */ + private Handler mHandler = new Handler() { + @Override + public void handleMessage(Message msg) { + switch (msg.what) { + case TIMEOUT: + handleTimeout(msg.arg1); + return ; + } + } + }; + + /** + * Handles the message sent by {@link #pokeWakelock} + * @param seq used to determine if anything has changed since the message + * was sent. + * @see #TIMEOUT + */ + private void handleTimeout(int seq) { + synchronized (this) { + if (DEBUG) Log.d(TAG, "handleTimeout"); + if (seq == mWakelockSequence) { + mWakeLock.release(); + } + } + } + + /** + * Provides a Runnable class to handle the finger + * verification + */ + private class VerifyRunner implements Runnable { + public void run() { + int iResult = 0; + boolean bRetryAfterLockout = false; + + m_bVerifyied = false; + + // A trick to dismiss the timeout dialog. + mCallback.isVerifyUnlockOnly(); + + try { + while (true) { + if (m_bPaused) { + if (DEBUG) Log.d(TAG,"VerifyRunner: paused before the verify() call."); + /* Do not call the verify interface if the "cancel" comes before it starts. */ + if (AuthentecHelper.eAM_STATUS_OK == iResult) { + /* The result should never be eAM_STATUS_OK. */ + iResult = AuthentecHelper.eAM_STATUS_USER_CANCELED; + } + break; + } + + iResult = fingerhelper.verifyPolicy(m_Context); + + if (DEBUG) Log.d(TAG,"Verify result=" + iResult); + if (AuthentecHelper.eAM_STATUS_CREDENTIAL_LOCKED == iResult) { + Log.e(TAG, "Credential locked!"); + //runOnUiThread(new Runnable() { + //public void run() { + //toast(getContext().getString(R.string.keyguard_finger_failed_to_unlock)); + //} + //}); + } else if (AuthentecHelper.eAM_STATUS_USER_CANCELED == iResult) { + if (m_bStartAgain) { + Log.e(TAG, "Cancel OK, continue because of the successive launch."); + m_bStartAgain = false; + m_bPaused = false; + } else { + break; + } + } else { + // Terminate the current thread for all other cases. + break; + } + + if (m_bPaused) { + /* Break immediatly without the sleep. */ + if (DEBUG) Log.d(TAG,"VerifyRunner: paused after the verify() call."); + break; + } + + // Give other tasks a chance. + Thread.sleep(10); + } + } catch (Exception e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } + + try { + switch (iResult) { + case AuthentecHelper.eAM_STATUS_OK: + m_bVerifyied = true; + if (DEBUG) Log.d(TAG,"keyguardDone, m_bVerifyied=" + m_bVerifyied); + mCallback.keyguardDone(true); + mHandler.removeMessages(TIMEOUT); + mWakeLock.release(); + break; + + case AuthentecHelper.eAM_STATUS_USER_CANCELED: + // Power off. + Log.e(TAG, "Simulating device lock.\nYou may not cancel!"); + break; + + case AuthentecHelper.eAM_STATUS_CREDENTIAL_LOCKED: + // When m_bPaused becomes true. + bRetryAfterLockout = true; + break; + + case AuthentecHelper.eAM_STATUS_NO_STORED_CREDENTIAL: + // Should never happen. + if (DEBUG) Log.d(TAG,"No stored credential"); + bRetryAfterLockout = true; + break; + + case AuthentecHelper.eAM_STATUS_LIBRARY_NOT_AVAILABLE: + Log.e(TAG, "Library failed to load... cannot proceed!"); + bRetryAfterLockout = true; + break; + + case AuthentecHelper.eAM_STATUS_UI_TIMEOUT: + Log.e(TAG, "UI timeout!"); + runOnUiThread(new Runnable() { + public void run() { + toast(getContext().getString(R.string.keyguard_finger_ui_timeout)); + } + }); + bRetryAfterLockout = true; + break; + + case AuthentecHelper.eAM_STATUS_UNKNOWN_ERROR: + Log.e(TAG, "Unkown error!"); + bRetryAfterLockout = true; + break; + + default: + Log.e(TAG, "Other results: " + iResult); + bRetryAfterLockout = true; + } + } catch (Exception e){} + + if (!m_bPaused && bRetryAfterLockout) { + if (DEBUG) Log.d(TAG,"Error happens, retry after lock out"); + runOnUiThread(new Runnable() { + public void run() { + pokeWakelock(1000); + long deadline = mLockPatternUtils.setLockoutAttemptDeadline(); + handleAttemptLockout(deadline); + } + }); + } + } + } + + private void handleAttemptLockout(long elapsedRealtimeDeadline) { + // Put the key guard into lockout state. + m_bAttemptLockout = true; + // Cancel the Verify thread. + if (mExecutionThread != null && mExecutionThread.isAlive()) { + if (!m_bGfxEngineAttached) { + if (DEBUG) Log.d(TAG,"Lockout send cancel delayed"); + m_bSendDelayedCancel = true; + } else { + if (DEBUG) Log.d(TAG,"Lockout send cancel"); + if (!m_bCancelHasBeenSent) + { + GfxEngineRelayService.queueEvent("#cancel"); + m_bCancelHasBeenSent = true; + } + } + } + + long elapsedRealtime = SystemClock.elapsedRealtime(); + mCountdownTimer = new CountDownTimer(elapsedRealtimeDeadline - elapsedRealtime, 1000) { + + @Override + public void onTick(long millisUntilFinished) { + int secondsRemaining = (int) (millisUntilFinished / 1000); + //mInstructions = getContext().getString( + // R.string.lockscreen_too_many_failed_attempts_countdown, + // secondsRemaining); + //updateStatusLines(); + mUserPrompt.setText(getContext().getString( + R.string.lockscreen_too_many_failed_attempts_countdown, + secondsRemaining)); + } + + @Override + public void onFinish() { + // Put the key guard out of lockout state. + if (DEBUG) Log.d(TAG,"handleAttemptLockout: onFinish"); + m_bAttemptLockout = false; + // "keyguard_finger_please_swipe" string would be showed when the TSM is ready. + // mInstructions = getContext().getString(R.string.lockscreen_pattern_instructions); + //updateStatusLines(); + resetStatusInfo(); + // TODO mUnlockIcon.setVisibility(View.VISIBLE); + mFailedPatternAttemptsSinceLastTimeout = 0; + if (mEnableFallback) { + updateFooter(FooterMode.ForgotLockPattern); + } else { + updateFooter(FooterMode.Normal); + } + + // Show the "Screen off" status + if (m_bPaused) { + mUserPrompt.setText(R.string.keyguard_finger_screen_off); + } else { + mUserPrompt.setText(""); + } + + // Start the verification if the finger key guard is holding the wakelock. + if ( (!m_bPaused) && (mExecutionThread != null) && (!(mExecutionThread.isAlive())) ) { + /** + * acquire the handoff lock that will keep the cpu running. this will + * be released once the fingerprint keyguard has set the verification up + * and poked the mWakelock of itself (not the one of the KeyguradViewMediator). + */ + mHandOffWakeLock.acquire(); + if (mExecutionThread.getState() == Thread.State.TERMINATED) { + // If the thread state is TERMINATED, it cannot be start() again. + // Create a thread for verification. + mExecutionThread = new Thread(mVerifyRunner); + mExecutionThread.start(); + } else { + if (DEBUG) Log.d(TAG,"Verify thread exists, just start it"); + mExecutionThread.start(); + } + } + } + }.start(); + } + + public void onPhoneStateChanged(String newState) { + refreshEmergencyButtonText(); + } + + /* handleShow() is called when the GfxEngine sends "show <target>" */ + private void handleShow(String target) + { + if (DEBUG) Log.w(TAG, "'show' target: " + target); + + // Has the object paused? + if (m_bPaused) + { + if (DEBUG) Log.d(TAG,"handleShow: paused"); + return; + } + + if (m_bAttemptLockout) + { + if (DEBUG) Log.d(TAG,"handleShow: Locked out"); + return; + } + + /* if the target is C1-C10 or D1-D10, ignore the command */ + if (target.matches("[CD][1-9]0?$")) return; + + /* if the target is please_swipe, show the UI command to the user: */ + if (target.equals("please_swipe")) { + /* update the UI */ + runOnUiThread(new Runnable() { + public void run() { + mUserPrompt.setText(R.string.keyguard_finger_please_swipe); + // How long we stay awake once the system is ready for a user to enter a pattern. + pokeWakelock(UNLOCK_FINGER_WAKE_INTERVAL_MS); + } + }); + return; + } + + if (target.equals("swipe_good")) { + runOnUiThread(new Runnable() { + public void run() { + toast(getContext().getString(R.string.keyguard_finger_match)); + } + }); + return; + } + /* we'll be asked to show swipe_bad if the finger does not verify. */ + /* this could be following a usage feedback message, in which case */ + /* we've already displayed the feedback, so we don't want to worry */ + /* about an additional message. */ + if (target.equals("swipe_bad")) { + // Update the total failed attempts. + mTotalFailedPatternAttempts++; + mFailedPatternAttemptsSinceLastTimeout++; + + if (!mbFeedbackDelivered) { + runOnUiThread(new Runnable() { + public void run() { + toast(getContext().getString(R.string.keyguard_finger_not_match)); + mCallback.reportFailedUnlockAttempt(); + if (mFailedPatternAttemptsSinceLastTimeout >= + LockPatternUtils.FAILED_ATTEMPTS_BEFORE_TIMEOUT) { + pokeWakelock(1000); + long deadline = mLockPatternUtils.setLockoutAttemptDeadline(); + handleAttemptLockout(deadline); + } + } + }); + } else { + runOnUiThread(new Runnable() { + public void run() { + mCallback.reportFailedUnlockAttempt(); + if (mFailedPatternAttemptsSinceLastTimeout >= + LockPatternUtils.FAILED_ATTEMPTS_BEFORE_TIMEOUT) { + pokeWakelock(1000); + long deadline = mLockPatternUtils.setLockoutAttemptDeadline(); + handleAttemptLockout(deadline); + } + } + }); + } + + mbFeedbackDelivered = false; + return; + } + + /* if the target is any of our feedback messages, provide a toast... */ + if (target.equals("swipe_too_fast")) { + mbFeedbackDelivered = true; + runOnUiThread(new Runnable() { + public void run() { + toast(getContext().getString(R.string.keyguard_finger_swipe_too_fast)); + } + }); + return; + } + if (target.equals("swipe_too_slow")) { + mbFeedbackDelivered = true; + runOnUiThread(new Runnable() { + public void run() { + toast(getContext().getString(R.string.keyguard_finger_swipe_too_slow)); + } + }); + return; + } + if (target.equals("swipe_too_short")) { + mbFeedbackDelivered = true; + runOnUiThread(new Runnable() { + public void run() { + toast(getContext().getString(R.string.keyguard_finger_swipe_too_short)); + } + }); + return; + } + if (target.equals("swipe_too_skewed")) { + mbFeedbackDelivered = true; + runOnUiThread(new Runnable() { + public void run() { + toast(getContext().getString(R.string.keyguard_finger_swipe_too_skewed)); + } + }); + return; + } + if (target.equals("swipe_too_far_left")) { + mbFeedbackDelivered = true; + runOnUiThread(new Runnable() { + public void run() { + toast(getContext().getString(R.string.keyguard_finger_swipe_too_far_left)); + } + }); + return; + } + if (target.equals("swipe_too_far_right")) { + mbFeedbackDelivered = true; + runOnUiThread(new Runnable() { + public void run() { + toast(getContext().getString(R.string.keyguard_finger_swipe_too_far_right)); + } + }); + return; + } + + /* if we get here, we did not recognize the target... */ + if (DEBUG) Log.w(TAG, "Unhandled 'show' target: " + target); + } + + /* handleHide() is called when the GfxEngine sends "hide <target>" */ + private void handleHide(String target) + { + // Has the object paused? + if (m_bPaused) + { + if (DEBUG) Log.d(TAG,"handleHide: paused"); + return; + } + + /* if the target is C1-C10 or D1-D10, ignore the command */ + if (target.matches("[CD][1-9]0?$")) return; + + /* if the target is please_swipe, remove the user prompt */ + if (target.equals("please_swipe")) + { + runOnUiThread(new Runnable() { + public void run() { + mUserPrompt.setText(""); + /** + * acquire the handoff lock that will keep the cpu running. this will + * be released once the fingerprint keyguard has set the next verification + * up and poked the mWakelock of itself (not the one of the KeyguradViewMediator). + */ + mHandOffWakeLock.acquire(); + + if (mTactileFeedbackEnabled) { + // Generate tactile feedback + if (DEBUG) Log.d(TAG,"Finger on vibration"); + vibe.vibrate(mVibePattern, -1); + } + } + }); + return; + } + + /* if the target is any of our feedback messages, nothing to hide... */ + + /* if we get here, we did not recognize the target... */ + if (DEBUG) Log.w(TAG, "Unhandled 'hide' target: " + target); + } + + /* receiveCommand() is called by a package-local component of the */ + /* relay server, any time a command is received from the GfxEngine. */ + public void receiveCommand(String command, String args) { + /* process the command: */ + + /* for "screen" without parameters, the GfxEngine is done with us... + * we expect to receive exactly two screen commands during our + * lifetime: + * command=="screen", args=="<something here>" + * and + * command=="screen", args=="" + * The first pattern will be the very first command we receive, and + * the second will be the very last command we receive. The argument + * in the first pattern will be indicative of the reason the system + * is presenting a UI; if our activity/service is intended to manage + * multiple screen types, we can use this to distinguish which one to + * present. + */ + if (command.equals("screen") && ((args == null) || (args.length() == 0))) { + // in this case we received "screen" without any arguments... if + // our activity had been launched by the GfxEngine, we would key on + // this to terminate. in this demo, our activity is around before + // the GfxEngine, and we trigger it rather than it triggering us, + // so we can safely ignore this command. + + // we just received "screen" with no arguments... the connection is breaking. + if (DEBUG) Log.w(TAG, "receiveCommand: the connection is breaking"); + m_bGfxEngineAttached = false; + m_bCancelHasBeenSent = false; + return; + } + else if (command.equals("screen")) { + // we don't need to do anything here unless we care about the name + // of the screen being instantiated (in which case we are interested + // in the value of args) + + // we're attached to the GfxEngine, manage delayed cancelation. + if (DEBUG) Log.w(TAG, "receiveCommand: attatched to the GfxEngine"); + m_bGfxEngineAttached = true; + if ((m_bSendDelayedCancel) && (!m_bCancelHasBeenSent)) { + if (DEBUG) Log.w(TAG, "receiveCommand: cancel delayed"); + if (mExecutionThread != null && mExecutionThread.isAlive()) { + if (DEBUG) Log.w(TAG, "receiveCommand: send delayed #cancel"); + GfxEngineRelayService.queueEvent("#cancel"); + m_bCancelHasBeenSent = true; + m_bSendDelayedCancel = false; + } + } + return; + } + + /* if the command is "show" or "hide", we're being asked to show or + * hide some named UI element. In some cases, the UI elements may not + * actually exist, in which case the command can probably be ignored. + * based on the name of the element to be shown / hidden, we might + * make different choices. An element may exist to tell the user to do + * something: the element 'please_swipe' is used to inform the user + * that the system is waiting for their finger to be swiped IF the + * element is being shown. However, if the element is being hidden, + * the system is acknowledging that the user has started their swipe. + * It is normal to start a timer when "show please_swipe" is seen, and + * if the timer expires before "hide please_swipe" occurs, it's normal + * to send back a '#timeout' event. + * Other elements exist for the purpose of providing the user with + * usage feedback; these elements will be shown but not hidden. It is + * this activity's responsibility to decide when/if they should be + * taken down from the display. Often these types of feedback will be + * presented through an Android 'toast'. Examples of these feedback + * messages include: swipe_good, swipe_too_fast, swipe_too_slow, + * sensor_dirty, swipe_too_short, swipe_too_skewed, + * swipe_too_far_right, swipe_too_far_left. + * Generally it is believed that these element names explain the reason + * they will be shown, but there are some caveats to be aware of. + * + * swipe_too_far_[right|left] may be inaccurate. That is, the + * left message may be shown when right is appropriate, and the reverse + * is true. The issue here is that the sensor can be mounted upside + * down, and the user could swipe in the opposite direction versus + * what the hardware design intends. As long as the swipe is in the + * center of the sensor, neither of those possibilities will have a + * negative effect on the operation, however they can cause the + * confusion. It is recommended that the same response be used for + * each of these conditions, and that the response merely tell the + * user two swipe in the center of the sensor. + * + * Some of these messages will accompany another message immediately + * following: swipe_bad. It is tempting to simply ignore the swipe_bad + * message if the more direct message is being presented, however the + * swipe_bad message will also be sent (without other feedback) in the + * case of a good swipe failing to correctly verify against the + * database; the swipe_bad element is the only no-match notification. + * + * Other elements that could be shown or hidden include C1 through C10 + * and D1 through D10. These elements are only useful in the event + * that our UI includes a set of fingers and wishes to highlight + * certain fingers for some reason. If the UI does not include such a + * requirement, these elements can be ignored. + * + */ + if (command.equals("show")) { + handleShow(args); + return; + } + + if (command.equals("hide")) { + handleHide(args); + return; + } + + if (command.equals("settext")) { + // This can generally be ignored. For UIs that get invoked on + // behalf of multiple different applications, we expect to receive + // a "settext appname <app name here>" command, in case we want to + // tell the user which application is needing their fingerprint in + // order to return a credential from the database. + return; + } + + if (DEBUG) Log.w(TAG, "Unhandled command: " + command); + } + + private void toast(final String s) + { + runOnUiThread(new Runnable() { + public void run() + { + mErrorPrompt.setText(s); + mCountdownTimerToast = new CountDownTimer(1000, 1000) { + @Override + public void onFinish() { + mErrorPrompt.setText(""); + } + + @Override + public void onTick(long millisUntilFinished) { + // TODO Auto-generated method stub + } + }.start(); + } + }); + } + + public void onMusicChanged() { + // refreshPlayingTitle(); + } +} |