From b256e4e209afd33bff360ec2652b6ca508df74de Mon Sep 17 00:00:00 2001
From: Jim Miller <jaggies@google.com>
Date: Fri, 31 Oct 2014 17:27:13 -0700
Subject: [PATCH] Fix SetupWizard black screen issue for EDU devices

This fixes a problem where EDU devices show a black screen if
the device is rebooted after setting a pin/pattern/password but
before completing SetupWizard.

The issue is that the system doesn't expect to see a state
where the device is not provisioned but has a pin/pattern/password
because it wasn't possible before. With the addition of the ability
for EDU devices to add a pin/pattern/password, we can now get
into this unforseen state.

The fix ignores provisioning if a password is set so that the
user can reach the security screen to unlock the device and
continue with SetupWizard.

Fixes bug 18022051

Change-Id: Ie88a75530d964c02458c25866f0629877214edf4
---
 .../systemui/keyguard/KeyguardViewMediator.java  | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java b/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java
index 4af84994c7083..172aaf67b8733 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java
@@ -364,7 +364,7 @@ public class KeyguardViewMediator extends SystemUI {
                     // only force lock screen in case of missing sim if user hasn't
                     // gone through setup wizard
                     synchronized (this) {
-                        if (!mUpdateMonitor.isDeviceProvisioned()) {
+                        if (shouldWaitForProvisioning()) {
                             if (!isShowing()) {
                                 if (DEBUG) Log.d(TAG, "ICC_ABSENT isn't showing,"
                                         + " we need to show the keyguard since the "
@@ -493,8 +493,7 @@ public class KeyguardViewMediator extends SystemUI {
         mLockPatternUtils.setCurrentUser(ActivityManager.getCurrentUser());
 
         // Assume keyguard is showing (unless it's disabled) until we know for sure...
-        mShowing = (mUpdateMonitor.isDeviceProvisioned() || mLockPatternUtils.isSecure())
-                && !mLockPatternUtils.isLockScreenDisabled();
+        mShowing = !shouldWaitForProvisioning() && !mLockPatternUtils.isLockScreenDisabled();
 
         mStatusBarKeyguardViewManager = new StatusBarKeyguardViewManager(mContext,
                 mViewMediatorCallback, mLockPatternUtils);
@@ -783,7 +782,7 @@ public class KeyguardViewMediator extends SystemUI {
     public void verifyUnlock(IKeyguardExitCallback callback) {
         synchronized (this) {
             if (DEBUG) Log.d(TAG, "verifyUnlock");
-            if (!mUpdateMonitor.isDeviceProvisioned()) {
+            if (shouldWaitForProvisioning()) {
                 // don't allow this api when the device isn't provisioned
                 if (DEBUG) Log.d(TAG, "ignoring because device isn't provisioned");
                 try {
@@ -873,7 +872,7 @@ public class KeyguardViewMediator extends SystemUI {
      * was suppressed by an app that disabled the keyguard or we haven't been provisioned yet.
      */
     public boolean isInputRestricted() {
-        return mShowing || mNeedToReshowWhenReenabled || !mUpdateMonitor.isDeviceProvisioned();
+        return mShowing || mNeedToReshowWhenReenabled || shouldWaitForProvisioning();
     }
 
     /**
@@ -905,14 +904,13 @@ public class KeyguardViewMediator extends SystemUI {
         // if the setup wizard hasn't run yet, don't show
         final boolean requireSim = !SystemProperties.getBoolean("keyguard.no_require_sim",
                 false);
-        final boolean provisioned = mUpdateMonitor.isDeviceProvisioned();
         final IccCardConstants.State state = mUpdateMonitor.getSimState();
         final boolean lockedOrMissing = state.isPinLocked()
                 || ((state == IccCardConstants.State.ABSENT
                 || state == IccCardConstants.State.PERM_DISABLED)
                 && requireSim);
 
-        if (!lockedOrMissing && !provisioned) {
+        if (!lockedOrMissing && shouldWaitForProvisioning()) {
             if (DEBUG) Log.d(TAG, "doKeyguard: not showing because device isn't provisioned"
                     + " and the sim is not locked or missing");
             return;
@@ -935,6 +933,10 @@ public class KeyguardViewMediator extends SystemUI {
         showLocked(options);
     }
 
+    private boolean shouldWaitForProvisioning() {
+        return !mUpdateMonitor.isDeviceProvisioned() && !isSecure();
+    }
+
     /**
      * Dismiss the keyguard through the security layers.
      */