Merge "DO NOT MERGE. Experimental compatibility mode UI." into honeycomb-mr2

packages/SystemUI/res/drawable/ic_sysbar_zoom.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2011 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.
+-->
+
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_pressed="true" android:drawable="@drawable/ic_sysbar_zoom_pressed" />
+    <item android:drawable="@drawable/ic_sysbar_zoom_default" />
+</selector>
+

packages/SystemUI/res/layout-sw600dp/status_bar.xml

@@ -75,6 +75,13 @@
                     systemui:keyCode="82"
                     android:visibility="invisible"
                     />
+                <com.android.systemui.statusbar.policy.CompatModeButton
+                    android:id="@+id/compat_button"
+                    android:layout_width="80dip"
+                    android:layout_height="match_parent"
+                    android:src="@drawable/ic_sysbar_zoom"
+                    android:visibility="invisible"
+                    />
             </LinearLayout>
 
             <!-- fake space bar zone -->

packages/SystemUI/src/com/android/systemui/statusbar/policy/CompatModeButton.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2008 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.policy;
+
+import android.app.ActivityManager;
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.os.RemoteException;
+import android.util.AttributeSet;
+import android.util.Slog;
+import android.view.View;
+import android.widget.ImageView;
+
+import com.android.systemui.R;
+
+public class CompatModeButton extends ImageView implements View.OnClickListener {
+    private static final String TAG = "StatusBar.CompatModeButton";
+
+    private ActivityManager mAM;
+
+    public CompatModeButton(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public CompatModeButton(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs);
+
+        setClickable(true);
+
+        mAM = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
+
+        setOnClickListener(this);
+
+        refresh();
+    }
+
+    @Override
+    public void onClick(View v) {
+        mAM.setFrontActivityScreenCompatMode(ActivityManager.COMPAT_MODE_TOGGLE);
+    }
+
+    public void refresh() {
+        setVisibility(
+                (mAM.getFrontActivityScreenCompatMode() == ActivityManager.COMPAT_MODE_NEVER)
+                ? View.GONE
+                : View.VISIBLE
+            );
+    }
+}

packages/SystemUI/src/com/android/systemui/statusbar/tablet/TabletStatusBar.java

@@ -69,6 +69,7 @@ import com.android.systemui.R;
 import com.android.systemui.statusbar.*;
 import com.android.systemui.statusbar.policy.BatteryController;
 import com.android.systemui.statusbar.policy.BluetoothController;
+import com.android.systemui.statusbar.policy.CompatModeButton;
 import com.android.systemui.statusbar.policy.LocationController;
 import com.android.systemui.statusbar.policy.NetworkController;
 import com.android.systemui.statusbar.policy.Prefs;
@@ -962,6 +963,10 @@ public class TabletStatusBar extends StatusBar implements
 
         // See above re: lights-out policy for legacy apps.
         if (visible) setLightsOn(true);
+
+        // XXX: HACK: not sure if this is the best way to catch a new activity that might require a
+        // change in compatibility features, but it's a start.
+        ((CompatModeButton) mBarContents.findViewById(R.id.compat_button)).refresh();
     }
 
     public void setImeWindowStatus(IBinder token, int vis, int backDisposition) {