Add an empty stub status bar service implementation

For kiosk-type devices that do not present any navigation UI.  This allows
for clean selection of the implementation based on resource overlays,
without the need for the tablet or phone status bar implementations to
accomodate the desired behaviors.

Bug 5824373

Change-Id: Idcec70eef437904edda452b69e5eb7a3cc7094f7
(cherry picked from commit 5717f80 in ics-aah)

Signed-off-by: Mike J. Chen <mjchen@google.com>

Author: Christopher Tate

packages/SystemUI/proguard.flags

@@ -13,3 +13,5 @@
   public void setGlowAlpha(float);
   public void setGlowScale(float);
 }
+
+-keep class com.android.systemui.statusbar.tv.TvStatusBar

packages/SystemUI/src/com/android/systemui/statusbar/tv/TvStatusBar.java

@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.statusbar.tv;
+
+import com.android.internal.statusbar.StatusBarIcon;
+import com.android.internal.statusbar.StatusBarNotification;
+import com.android.systemui.statusbar.BaseStatusBar;
+
+import android.os.IBinder;
+import android.view.View;
+import android.view.ViewGroup.LayoutParams;
+import android.view.WindowManager;
+
+/*
+ * Status bar implementation for "large screen" products that mostly present no on-screen nav
+ */
+
+public class TvStatusBar extends BaseStatusBar {
+    View mView;
+
+    @Override
+    public void addIcon(String slot, int index, int viewIndex, StatusBarIcon icon) {
+    }
+
+    @Override
+    public void updateIcon(String slot, int index, int viewIndex, StatusBarIcon old,
+            StatusBarIcon icon) {
+    }
+
+    @Override
+    public void removeIcon(String slot, int index, int viewIndex) {
+    }
+
+    @Override
+    public void addNotification(IBinder key, StatusBarNotification notification) {
+    }
+
+    @Override
+    public void updateNotification(IBinder key, StatusBarNotification notification) {
+    }
+
+    @Override
+    public void removeNotification(IBinder key) {
+    }
+
+    @Override
+    public void disable(int state) {
+    }
+
+    @Override
+    public void animateExpand() {
+    }
+
+    @Override
+    public void animateCollapse(int flags) {
+    }
+
+    @Override
+    public void setSystemUiVisibility(int vis, int mask) {
+    }
+
+    @Override
+    public void topAppWindowChanged(boolean visible) {
+    }
+
+    @Override
+    public void setImeWindowStatus(IBinder token, int vis, int backDisposition) {
+    }
+
+    @Override
+    public void setHardKeyboardStatus(boolean available, boolean enabled) {
+    }
+
+    @Override
+    public void toggleRecentApps() {
+    }
+
+    @Override // CommandQueue
+    public void setNavigationIconHints(int hints) {
+    }
+
+    @Override
+    protected void createAndAddWindows() {
+    }
+
+    @Override
+    protected WindowManager.LayoutParams getRecentsLayoutParams(
+            LayoutParams layoutParams) {
+        return null;
+    }
+
+    @Override
+    protected WindowManager.LayoutParams getSearchLayoutParams(
+            LayoutParams layoutParams) {
+        return null;
+    }
+
+    @Override
+    protected void haltTicker() {
+    }
+
+    @Override
+    protected void setAreThereNotifications() {
+    }
+
+    @Override
+    protected void updateNotificationIcons() {
+    }
+
+    @Override
+    protected void tick(IBinder key, StatusBarNotification n, boolean firstTime) {
+    }
+
+    @Override
+    protected void updateExpandedViewPos(int expandedPosition) {
+    }
+
+    @Override
+    protected int getExpandedViewMaxHeight() {
+        return 0;
+    }
+
+    @Override
+    protected boolean shouldDisableNavbarGestures() {
+        return true;
+    }
+
+    protected View makeStatusBarView() {
+        synchronized (this) {
+            if (mView == null) {
+                mView = new View(mContext);
+            }
+        }
+        return mView;
+    }
+
+    protected int getStatusBarGravity() {
+        return 0;
+    }
+
+    public int getStatusBarHeight() {
+        return 0;
+    }
+
+    public void animateCollapse() {
+    }
+
+}