Add a new window flag to display a window when keyguard is shown.

core/java/android/view/WindowManager.java

@@ -466,6 +466,15 @@ public interface WindowManager extends ViewManager {
          */
         public static final int FLAG_WATCH_OUTSIDE_TOUCH = 0x00040000;
         
+        /** Window flag: special flag to let windows be shown when the screen
+         * is locked. This will let application windows take precedence over
+         * key guard or any other lock screens. Can be used with
+         * {@link #FLAG_KEEP_SCREEN_ON} to turn screen on and display windows
+         * directly before showing the key guard window
+         *
+         * {@hide} */
+        public static final int FLAG_SHOW_WHEN_LOCKED = 0x00080000;
+
         /** Window flag: a special option intended for system dialogs.  When
          * this flag is set, the window will demand focus unconditionally when
          * it is created.

services/java/com/android/server/WindowManagerService.java

@@ -1300,7 +1300,6 @@ public class WindowManagerService extends IWindowManager.Stub implements Watchdo
                     mKeyWaiter.handleNewWindowLocked(mCurrentFocus);
                 }
             }
-            
             if (localLOGV) Log.v(
                 TAG, "New client " + client.asBinder()
                 + ": window=" + win);
@@ -7732,7 +7731,6 @@ public class WindowManagerService extends IWindowManager.Stub implements Watchdo
         int i;
 
         // FIRST LOOP: Perform a layout, if needed.
-        
         performLayoutLockedInner();
         
         if (mFxSession == null) {
@@ -7752,7 +7750,6 @@ public class WindowManagerService extends IWindowManager.Stub implements Watchdo
         }
 
         // SECOND LOOP: Execute animations and update visibility of windows.
-        
         boolean orientationChangeComplete = true;
         Session holdScreen = null;
         float screenBrightness = -1;