1 files changed, 19 insertions, 2 deletions

diff --git a/core/java/android/view/WindowManager.java b/core/java/android/view/WindowManager.java
index 491a79f..c26fa93 100644
--- a/core/java/android/view/WindowManager.java
+++ b/core/java/android/view/WindowManager.java
@@ -953,11 +953,20 @@ public interface WindowManager extends ViewManager {
 
         /**
          * Control the visibility of the status bar.
-         * @hide
+         *
+         * @see View#STATUS_BAR_VISIBLE
+         * @see View#STATUS_BAR_HIDDEN
          */
         public int systemUiVisibility;
 
         /**
+         * @hide
+         * The ui visibility as requested by the views in this hierarchy.
+         * the combined value should be systemUiVisibility | subtreeSystemUiVisibility.
+         */
+        public int subtreeSystemUiVisibility;
+
+        /**
          * Get callbacks about the system ui visibility changing.
          * 
          * TODO: Maybe there should be a bitfield of optional callbacks that we need.
@@ -1046,6 +1055,7 @@ public interface WindowManager extends ViewManager {
             TextUtils.writeToParcel(mTitle, out, parcelableFlags);
             out.writeInt(screenOrientation);
             out.writeInt(systemUiVisibility);
+            out.writeInt(subtreeSystemUiVisibility);
             out.writeInt(hasSystemUiListeners ? 1 : 0);
         }
         
@@ -1083,6 +1093,7 @@ public interface WindowManager extends ViewManager {
             mTitle = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
             screenOrientation = in.readInt();
             systemUiVisibility = in.readInt();
+            subtreeSystemUiVisibility = in.readInt();
             hasSystemUiListeners = in.readInt() != 0;
         }
     
@@ -1212,8 +1223,10 @@ public interface WindowManager extends ViewManager {
                 changes |= SCREEN_ORIENTATION_CHANGED;
             }
 
-            if (systemUiVisibility != o.systemUiVisibility) {
+            if (systemUiVisibility != o.systemUiVisibility
+                    || subtreeSystemUiVisibility != o.subtreeSystemUiVisibility) {
                 systemUiVisibility = o.systemUiVisibility;
+                subtreeSystemUiVisibility = o.subtreeSystemUiVisibility;
                 changes |= SYSTEM_UI_VISIBILITY_CHANGED;
             }
 
@@ -1298,6 +1311,10 @@ public interface WindowManager extends ViewManager {
                 sb.append(" sysui=0x");
                 sb.append(Integer.toHexString(systemUiVisibility));
             }
+            if (subtreeSystemUiVisibility != 0) {
+                sb.append(" vsysui=0x");
+                sb.append(Integer.toHexString(subtreeSystemUiVisibility));
+            }
             if (hasSystemUiListeners) {
                 sb.append(" sysuil=");
                 sb.append(hasSystemUiListeners);