Animations for user switching.

The window manager now has a facility to provide a full-screen
animation, which the activity manager uses every time a user
switch happens.

The current animation is just a simple dumb slide until we get
a design from UX.

Also some cleanup: moved the portrait task animations to the
default config so we always have an animation for them, and finally
got the java symbol stuff out of public.xml.

Change-Id: I726f77422b2ef5f2d98f961f8da003e045f0ebe8

Author: Dianne Hackborn

core/java/android/view/IWindowManager.aidl

@@ -107,6 +107,9 @@ interface IWindowManager
             IBinder freezeThisOneIfNeeded);
     void setNewConfiguration(in Configuration config);
 
+    void startFreezingScreen(int exitAnim, int enterAnim);
+    void stopFreezingScreen();
+
     // these require DISABLE_KEYGUARD permission
     void disableKeyguard(IBinder token, String tag);
     void reenableKeyguard(IBinder token);

core/java/android/view/animation/RotateAnimation.java

@@ -22,7 +22,7 @@
 
 /**
  * An animation that controls the rotation of an object. This rotation takes
- * place int the X-Y plane. You can specify the point to use for the center of
+ * place in the X-Y plane. You can specify the point to use for the center of
  * the rotation, where (0,0) is the top left point. If not specified, (0,0) is
  * the default rotation point.
  * 

core/res/AndroidManifest.xml

@@ -1265,6 +1265,13 @@
         android:description="@string/permdesc_manageAppTokens"
         android:protectionLevel="signature" />
 
+    <!-- @hide Allows the application to temporarily freeze the screen for a
+         full-screen transition. -->
+    <permission android:name="android.permission.FREEZE_SCREEN"
+        android:label="@string/permlab_freezeScreen"
+        android:description="@string/permdesc_freezeScreen"
+        android:protectionLevel="signature" />
+    
     <!-- Allows an application to inject user events (keys, touch, trackball)
          into the event stream and deliver them to ANY window.  Without this
          permission, you can only deliver events to windows in your own process.

core/res/res/anim/screen_user_enter.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/* Copyright 20012, 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.
+*/
+-->
+
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <translate android:fromXDelta="100%p" android:toXDelta="0"
+            android:duration="500"
+            android:interpolator="@interpolator/decelerate_quad" />
+    <alpha android:fromAlpha="0.0" android:toAlpha="1.0"
+            android:duration="500"
+            android:interpolator="@interpolator/decelerate_quad" />
+</set>

core/res/res/anim/screen_user_exit.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/* Copyright 20012, 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.
+*/
+-->
+
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+    <translate android:fromXDelta="0" android:toXDelta="-100%p"
+            android:duration="500"
+            android:interpolator="@interpolator/decelerate_quad" />
+    <alpha android:fromAlpha="1.0" android:toAlpha="0.0"
+            android:duration="500"
+            android:interpolator="@interpolator/decelerate_quad" />
+</set>