Clean up status bar, system bar, navigation bar management.

The status bar and navigation bar are two completely separate
elements, with their own semantics.  The system bar now classifies
itself as a navigation bar, since that is really how it behaves.

This required rewriting the HDMI resizing code, so that it is
all done by PhoneWindowManager since that is what is responsible
for the size of the navigation bar (and thus now system bar).  This
actually gets rid of a fair amount of code, and means we can also
do the same thing for a pure navigation bar.

Likewise the system bar now has the navigation bar ability to be
hidden when requested by system UI flags.  To get the behavior
we want on Xoom, we only allow the nav bar to be hidden when it
will help provide a better aspect ratio for showing widescreen
videos.

Finally the nav/system bar now animates when hidden and shown.

Change-Id: Ie927154b68376a0b61802f99171ff56b8da92e7a

2 files changed, 20 insertions, 11 deletions

diff --git a/services/java/com/android/server/wm/WindowManagerService.java b/services/java/com/android/server/wm/WindowManagerService.java
index 7eca401..654cfdf 100644
--- a/services/java/com/android/server/wm/WindowManagerService.java
+++ b/services/java/com/android/server/wm/WindowManagerService.java
@@ -5109,7 +5109,7 @@ public class WindowManagerService extends IWindowManager.Stub
         mPolicy.enableScreenAfterBoot();
 
         // Make sure the last requested orientation has been applied.
-        updateRotationUnchecked(false);
+        updateRotationUnchecked(false, false);
     }
 
     public void showBootMessage(final CharSequence msg, final boolean always) {
@@ -5383,7 +5383,7 @@ public class WindowManagerService extends IWindowManager.Stub
 
         mPolicy.setUserRotationMode(WindowManagerPolicy.USER_ROTATION_LOCKED,
                 rotation == -1 ? mRotation : rotation);
-        updateRotationUnchecked(false);
+        updateRotationUnchecked(false, false);
     }
 
     /**
@@ -5399,7 +5399,7 @@ public class WindowManagerService extends IWindowManager.Stub
         if (DEBUG_ORIENTATION) Slog.v(TAG, "thawRotation: mRotation=" + mRotation);
 
         mPolicy.setUserRotationMode(WindowManagerPolicy.USER_ROTATION_FREE, 777); // rot not used
-        updateRotationUnchecked(false);
+        updateRotationUnchecked(false, false);
     }
 
     /**
@@ -5409,8 +5409,8 @@ public class WindowManagerService extends IWindowManager.Stub
      * such that the current rotation might need to be updated, such as when the
      * device is docked or rotated into a new posture.
      */
-    public void updateRotation(boolean alwaysSendConfiguration) {
-        updateRotationUnchecked(alwaysSendConfiguration);
+    public void updateRotation(boolean alwaysSendConfiguration, boolean forceRelayout) {
+        updateRotationUnchecked(alwaysSendConfiguration, forceRelayout);
     }
 
     /**
@@ -5440,8 +5440,7 @@ public class WindowManagerService extends IWindowManager.Stub
         }
     }
 
-    public void updateRotationUnchecked(
-            boolean alwaysSendConfiguration) {
+    public void updateRotationUnchecked(boolean alwaysSendConfiguration, boolean forceRelayout) {
         if(DEBUG_ORIENTATION) Slog.v(TAG, "updateRotationUnchecked("
                    + "alwaysSendConfiguration=" + alwaysSendConfiguration + ")");
 
@@ -5449,6 +5448,10 @@ public class WindowManagerService extends IWindowManager.Stub
         boolean changed;
         synchronized(mWindowMap) {
             changed = updateRotationUncheckedLocked(false);
+            if (!changed || forceRelayout) {
+                mLayoutNeeded = true;
+                performLayoutAndPlaceSurfacesLocked();
+            }
         }
 
         if (changed || alwaysSendConfiguration) {
@@ -6641,7 +6644,7 @@ public class WindowManagerService extends IWindowManager.Stub
             mInputManager.setDisplaySize(Display.DEFAULT_DISPLAY,
                     mDisplay.getRawWidth(), mDisplay.getRawHeight(),
                     mDisplay.getRawExternalWidth(), mDisplay.getRawExternalHeight());
-            mPolicy.setInitialDisplaySize(mInitialDisplayWidth, mInitialDisplayHeight);
+            mPolicy.setInitialDisplaySize(mDisplay, mInitialDisplayWidth, mInitialDisplayHeight);
         }
 
         try {
@@ -7361,7 +7364,7 @@ public class WindowManagerService extends IWindowManager.Stub
             mBaseDisplayWidth = width;
             mBaseDisplayHeight = height;
         }
-        mPolicy.setInitialDisplaySize(mBaseDisplayWidth, mBaseDisplayHeight);
+        mPolicy.setInitialDisplaySize(mDisplay, mBaseDisplayWidth, mBaseDisplayHeight);
 
         mLayoutNeeded = true;
 
@@ -7393,8 +7396,8 @@ public class WindowManagerService extends IWindowManager.Stub
         }
     }
 
-    public boolean canStatusBarHide() {
-        return mPolicy.canStatusBarHide();
+    public boolean hasSystemNavBar() {
+        return mPolicy.hasSystemNavBar();
     }
 
     // -------------------------------------------------------------
diff --git a/services/java/com/android/server/wm/WindowState.java b/services/java/com/android/server/wm/WindowState.java
index 05797a4..a4708d3 100644
--- a/services/java/com/android/server/wm/WindowState.java
+++ b/services/java/com/android/server/wm/WindowState.java
@@ -870,6 +870,7 @@ final class WindowState implements WindowManagerPolicy.WindowState {
         return true;
     }
 
+    @Override
     public boolean hideLw(boolean doAnimation) {
         return hideLw(doAnimation, true);
     }
@@ -912,6 +913,11 @@ final class WindowState implements WindowManagerPolicy.WindowState {
         return true;
     }
 
+    @Override
+    public boolean isAlive() {
+        return mClient.asBinder().isBinderAlive();
+    }
+
     private static void applyInsets(Region outRegion, Rect frame, Rect inset) {
         outRegion.set(
                 frame.left + inset.left, frame.top + inset.top,