From 5f892c130a9799067686ac47640f9f70c8916103 Mon Sep 17 00:00:00 2001
From: Mike Lockwood <lockwood@android.com>
Date: Thu, 19 Nov 2009 23:39:13 -0500
Subject: [PATCH] When keyguard is active, only allow the status bar to be
 opened if it is insecure and covered by another window.

Fixes b/2215112 (When screen wakes to Playback screen, Notification Bar is active)

Change-Id: I43a8574259788d983c30b1a22e5bfc4e95d09bee
Signed-off-by: Mike Lockwood <lockwood@android.com>
---
 .../policy/impl/KeyguardViewMediator.java     | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/policy/com/android/internal/policy/impl/KeyguardViewMediator.java b/policy/com/android/internal/policy/impl/KeyguardViewMediator.java
index 6b9db604ee99d..2e97e14560c1b 100644
--- a/policy/com/android/internal/policy/impl/KeyguardViewMediator.java
+++ b/policy/com/android/internal/policy/impl/KeyguardViewMediator.java
@@ -22,6 +22,7 @@ import com.android.internal.widget.LockPatternUtils;
 import android.app.ActivityManagerNative;
 import android.app.AlarmManager;
 import android.app.PendingIntent;
+import android.app.StatusBarManager;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
@@ -135,6 +136,7 @@ public class KeyguardViewMediator implements KeyguardViewCallback,
     
     private Context mContext;
     private AlarmManager mAlarmManager;
+    private StatusBarManager mStatusBarManager;
 
     private boolean mSystemReady;
     
@@ -446,6 +448,7 @@ public class KeyguardViewMediator implements KeyguardViewCallback,
             if (mHidden != isHidden) {
                 mHidden = isHidden;
                 adjustUserActivityLocked();
+                adjustStatusBarLocked();
             }
         }
     }
@@ -899,6 +902,7 @@ public class KeyguardViewMediator implements KeyguardViewCallback,
             mKeyguardViewManager.show();
             mShowing = true;
             adjustUserActivityLocked();
+            adjustStatusBarLocked();
             try {
                 ActivityManagerNative.getDefault().closeSystemDialogs("lock");
             } catch (RemoteException e) {
@@ -922,6 +926,7 @@ public class KeyguardViewMediator implements KeyguardViewCallback,
             mKeyguardViewManager.hide();
             mShowing = false;
             adjustUserActivityLocked();
+            adjustStatusBarLocked();
         }
     }
 
@@ -936,6 +941,23 @@ public class KeyguardViewMediator implements KeyguardViewCallback,
         }
     }
 
+    private void adjustStatusBarLocked() {
+        if (mStatusBarManager == null) {
+            mStatusBarManager = (StatusBarManager)
+                    mContext.getSystemService(Context.STATUS_BAR_SERVICE);
+        }
+        if (mStatusBarManager == null) {
+            Log.w(TAG, "Could not get status bar manager");
+        } else {
+            // if the keyguard is shown, allow the status bar to open
+            // only if the keyguard is insecure and is covered by another window
+            boolean enable = !mShowing || (mHidden && !isSecure());
+            mStatusBarManager.disable(enable ?
+                         StatusBarManager.DISABLE_NONE :
+                         StatusBarManager.DISABLE_EXPAND);
+        }
+    }
+
     /**
      * Handle message sent by {@link #wakeWhenReadyLocked(int)}
      * @param keyCode The key that woke the device.