Merge "visibility ("lights out") API." into honeycomb

1 files changed, 41 insertions, 2 deletions

diff --git a/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java b/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
index 0d0e89c..67e0e67 100755
--- a/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
+++ b/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
@@ -34,6 +34,7 @@ import android.content.res.Resources;
 import android.database.ContentObserver;
 import android.graphics.PixelFormat;
 import android.graphics.Rect;
+import android.os.Binder;
 import android.os.Build;
 import android.os.Handler;
 import android.os.IBinder;
@@ -270,7 +271,10 @@ public class PhoneWindowManager implements WindowManagerPolicy {
     int mPointerLocationMode = 0;
     PointerLocationView mPointerLocationView = null;
     InputChannel mPointerLocationInputChannel;
-    
+
+    // The last window we were told about in focusChanged.
+    WindowState mFocusedWindow;
+
     private final InputHandler mPointerLocationInputHandler = new BaseInputHandler() {
         @Override
         public void handleMotion(MotionEvent event, InputQueue.FinishedCallback finishedCallback) {
@@ -1953,7 +1957,9 @@ public class PhoneWindowManager implements WindowManagerPolicy {
                 mKeyguardMediator.setHidden(false);
             }
         }
-        
+
+        updateSystemUiVisibility();
+
         // update since mAllowLockscreenWhenOn might have changed
         updateLockScreenTimeout();
         return changes;
@@ -1993,6 +1999,11 @@ public class PhoneWindowManager implements WindowManagerPolicy {
         return true;
     }
 
+    public void focusChanged(WindowState lastFocus, WindowState newFocus) {
+        mFocusedWindow = newFocus;
+        updateSystemUiVisibility();
+    }
+
     /** {@inheritDoc} */
     public void notifyLidSwitchChanged(long whenNanos, boolean lidOpen) {
         // lid changed state
@@ -2838,6 +2849,34 @@ public class PhoneWindowManager implements WindowManagerPolicy {
         return mScreenOn;
     }
 
+    private void updateSystemUiVisibility() {
+        // If there is no window focused, there will be nobody to handle the events
+        // anyway, so just hang on in whatever state we're in until things settle down.
+        if (mFocusedWindow != null) {
+            final int visibility = mFocusedWindow.getAttrs().systemUiVisibility;
+            mHandler.post(new Runnable() {
+                    public void run() {
+                        if (mStatusBarService == null) {
+                            mStatusBarService = IStatusBarService.Stub.asInterface(
+                                    ServiceManager.getService("statusbar"));
+                        }
+                        if (mStatusBarService != null) {
+                            // need to assume status bar privileges to invoke lights on
+                            long origId = Binder.clearCallingIdentity();
+                            try {
+                                mStatusBarService.setSystemUiVisibility(visibility);
+                            } catch (RemoteException e) {
+                                // not much to be done
+                                mStatusBarService = null;
+                            } finally {
+                                Binder.restoreCallingIdentity(origId);
+                            }
+                        }
+                    }
+                });
+        }
+    }
+
     public void dump(String prefix, FileDescriptor fd, PrintWriter pw, String[] args) {
         pw.print(prefix); pw.print("mSafeMode="); pw.print(mSafeMode);
                 pw.print(" mSystemRead="); pw.println(mSystemReady);