Quick unlock : Fix bug

There is an issue where users whose passwords are greater than 8 chars and
have quick unlock enabled will be unable to unlock their lockscreen.
This is due to the logic evaluating anything beyond 3chars as a password attempt.

This change modifies the quick unlock behavior so that when typing the password,
each character is considered an attempt, however if incorrect, is not reported as a failed attempt.
Only when the user presses enter is it considered an "explicit" attempt and a failed attempt is reported.

Change-Id: I02d436184d63c6880c7b1dc6b4b6119fba76e9a7

1 files changed, 3 insertions, 11 deletions

diff --git a/policy/src/com/android/internal/policy/impl/PasswordUnlockScreen.java b/policy/src/com/android/internal/policy/impl/PasswordUnlockScreen.java
index 433c338..76aef9e 100644
--- a/policy/src/com/android/internal/policy/impl/PasswordUnlockScreen.java
+++ b/policy/src/com/android/internal/policy/impl/PasswordUnlockScreen.java
@@ -129,17 +129,9 @@ public class PasswordUnlockScreen extends LinearLayout implements KeyguardScreen
                 public boolean onKey(View v, int keyCode, KeyEvent event) {
                     mCallback.pokeWakelock();
                     String entry = mPasswordEntry.getText().toString();
-                    if (keyCode != KeyEvent.KEYCODE_DEL) {
-                        if (mLockPatternUtils.checkPassword(entry)) {
-                            mCallback.keyguardDone(true);
-                            mCallback.reportSuccessfulUnlockAttempt();
-                        }
-                    } else if (entry.length() > MINIMUM_PASSWORD_LENGTH_BEFORE_REPORT) {
-                        mCallback.reportFailedUnlockAttempt();
-                        if (0 == (mUpdateMonitor.getFailedAttempts() % LockPatternUtils.FAILED_ATTEMPTS_BEFORE_TIMEOUT)) {
-                            long deadline = mLockPatternUtils.setLockoutAttemptDeadline();
-                            handleAttemptLockout(deadline);
-                        }
+                    if (mLockPatternUtils.checkPassword(entry)) {
+                        mCallback.keyguardDone(true);
+                        mCallback.reportSuccessfulUnlockAttempt();
                     }
                     return false;
                 }