From f164792472dae77b14a47a30ad66c1a0e41340b0 Mon Sep 17 00:00:00 2001
From: Youngsang Cho <youngsang@google.com>
Date: Thu, 17 Dec 2015 13:39:39 -0800
Subject: [PATCH] Initial check-in of picture-in-picture system-ui

Bug: 26549507
Change-Id: I6c69b5e2b5492858fc997657b5a06d3e50ca16e3
---
 core/res/res/values-television/config.xml     |   8 +
 core/res/res/values/config.xml                |   4 +
 core/res/res/values/symbols.xml               |   1 +
 packages/SystemUI/AndroidManifest.xml         |  21 ++
 packages/SystemUI/res/layout/tv_pip_menu.xml  |  61 ++++
 .../SystemUI/res/layout/tv_pip_overlay.xml    |  33 ++
 packages/SystemUI/res/values/strings_tv.xml   |  32 ++
 packages/SystemUI/res/values/styles_tv.xml    |  25 ++
 .../android/systemui/SystemUIApplication.java |   1 +
 .../android/systemui/tv/pip/PipManager.java   | 295 ++++++++++++++++++
 .../systemui/tv/pip/PipMenuActivity.java      |  88 ++++++
 .../systemui/tv/pip/PipOverlayActivity.java   |  76 +++++
 .../com/android/systemui/tv/pip/PipUI.java    |  53 ++++
 13 files changed, 698 insertions(+)
 create mode 100644 packages/SystemUI/res/layout/tv_pip_menu.xml
 create mode 100644 packages/SystemUI/res/layout/tv_pip_overlay.xml
 create mode 100644 packages/SystemUI/res/values/strings_tv.xml
 create mode 100644 packages/SystemUI/res/values/styles_tv.xml
 create mode 100644 packages/SystemUI/src/com/android/systemui/tv/pip/PipManager.java
 create mode 100644 packages/SystemUI/src/com/android/systemui/tv/pip/PipMenuActivity.java
 create mode 100644 packages/SystemUI/src/com/android/systemui/tv/pip/PipOverlayActivity.java
 create mode 100644 packages/SystemUI/src/com/android/systemui/tv/pip/PipUI.java

diff --git a/core/res/res/values-television/config.xml b/core/res/res/values-television/config.xml
index 34354746b97c6..0f98cfba478f6 100644
--- a/core/res/res/values-television/config.xml
+++ b/core/res/res/values-television/config.xml
@@ -23,4 +23,12 @@
 
     <!-- Flags enabling default window features. See Window.java -->
     <bool name="config_defaultWindowFeatureOptionsPanel">false</bool>
+
+    <!-- Default bounds [left top right bottom] on screen for picture-in-picture windows. -->
+    <string translatable="false" name="config_defaultPictureInPictureBounds">"1420 100 1820 325"</string>
+
+    <!-- Bounds [left top right bottom] on screen for picture-in-picture (PIP) windows, when the PIP
+         is located in center. -->
+    <string translatable="false" name="config_centeredPictureInPictureBounds">"600 331 1320 749"</string>
+
 </resources>
diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index 3f6a0c194d613..b6150e045f174 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -2419,6 +2419,10 @@
     <!-- Default bounds [left top right bottom] on screen for picture-in-picture windows. -->
     <string translatable="false" name="config_defaultPictureInPictureBounds">"0 0 100 100"</string>
 
+    <!-- Bounds [left top right bottom] on screen for picture-in-picture (PIP) windows, when the PIP
+         is located in center. -->
+    <string translatable="false" name="config_centeredPictureInPictureBounds">"0 0 300 300"</string>
+
     <!-- Controls the snap mode for the docked stack divider
              0 - 3 snap targets: left/top has 16:9 ratio, 1:1, and right/bottom has 16:9 ratio
              1 - 3 snap targets: fixed ratio, 1:1, (1 - fixed ratio)
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index e65ce5e7a1817..bfcd3fd06e7be 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -305,6 +305,7 @@
   <java-symbol type="bool" name="config_supportSpeakerNearUltrasound" />
   <java-symbol type="bool" name="config_freeformWindowManagement" />
   <java-symbol type="string" name="config_defaultPictureInPictureBounds" />
+  <java-symbol type="string" name="config_centeredPictureInPictureBounds" />
   <java-symbol type="integer" name="config_wifi_framework_5GHz_preference_boost_threshold" />
   <java-symbol type="integer" name="config_wifi_framework_5GHz_preference_boost_factor" />
   <java-symbol type="integer" name="config_wifi_framework_5GHz_preference_penalty_threshold" />
diff --git a/packages/SystemUI/AndroidManifest.xml b/packages/SystemUI/AndroidManifest.xml
index 3dc339dbadd55..8d57b88a67970 100644
--- a/packages/SystemUI/AndroidManifest.xml
+++ b/packages/SystemUI/AndroidManifest.xml
@@ -309,6 +309,27 @@
             android:launchMode="singleTop"
             android:excludeFromRecents="true" />
 
+        <!-- started from PipUI -->
+        <activity
+            android:name="com.android.systemui.tv.pip.PipMenuActivity"
+            android:exported="true"
+            android:theme="@style/PipTheme"
+            android:launchMode="singleTop"
+            android:configChanges="screenSize|smallestScreenSize|screenLayout|orientation|layoutDirection"
+            android:resizeable="true"
+            android:supportsPictureInPicture="true"
+            androidprv:alwaysFocusable="true"
+            android:excludeFromRecents="true" />
+        <activity
+            android:name="com.android.systemui.tv.pip.PipOverlayActivity"
+            android:exported="true"
+            android:theme="@style/PipTheme"
+            android:launchMode="singleTop"
+            android:configChanges="screenSize|smallestScreenSize|screenLayout|orientation|layoutDirection"
+            android:resizeable="true"
+            android:supportsPictureInPicture="true"
+            android:excludeFromRecents="true" />
+
         <!-- platform logo easter egg activity -->
         <activity
             android:name=".DessertCase"
diff --git a/packages/SystemUI/res/layout/tv_pip_menu.xml b/packages/SystemUI/res/layout/tv_pip_menu.xml
new file mode 100644
index 0000000000000..a638d175c3417
--- /dev/null
+++ b/packages/SystemUI/res/layout/tv_pip_menu.xml
@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+**
+** Copyright 2016, 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.
+*/
+-->
+
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+    <FrameLayout
+        android:layout_alignParentEnd="true"
+        android:layout_width="wrap_content"
+        android:layout_height="match_parent"
+        android:paddingStart="10dp"
+        android:paddingEnd="10dp"
+        android:background="#88FFFFFF">
+        <LinearLayout
+            android:orientation="vertical"
+            android:layout_gravity="center_vertical"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content" >
+
+            <Button android:id="@+id/full"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_vertical"
+                android:text="@string/pip_fullscreen"
+                android:textSize="10sp"
+                android:focusable="true" />
+
+            <Button android:id="@+id/exit"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_vertical"
+                android:text="@string/pip_exit"
+                android:textSize="10sp"
+                android:focusable="true" />
+
+            <Button android:id="@+id/cancel"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_vertical"
+                android:text="@string/pip_cancel"
+                android:textSize="10sp"
+                android:focusable="true" />
+        </LinearLayout>
+    </FrameLayout>
+</RelativeLayout>
diff --git a/packages/SystemUI/res/layout/tv_pip_overlay.xml b/packages/SystemUI/res/layout/tv_pip_overlay.xml
new file mode 100644
index 0000000000000..e8691b511706b
--- /dev/null
+++ b/packages/SystemUI/res/layout/tv_pip_overlay.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+**
+** Copyright 2016, 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.
+*/
+-->
+
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+    <TextView
+        android:id="@+id/guide_overlay"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_gravity="bottom"
+        android:padding="3dp"
+        android:textSize="13sp"
+        android:textColor="#111111"
+        android:background="#99EEEEEE"
+        android:text="@string/pip_hold_home" />
+</FrameLayout>
diff --git a/packages/SystemUI/res/values/strings_tv.xml b/packages/SystemUI/res/values/strings_tv.xml
new file mode 100644
index 0000000000000..d432a627a84dd
--- /dev/null
+++ b/packages/SystemUI/res/values/strings_tv.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/**
+ * Copyright (c) 2016, 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.
+ */
+-->
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+    <!-- Button to close PIP on PIP UI -->
+    <string name="pip_exit">Close PIP</string>
+    <!-- Button to move PIP screen to the fullscreen on PIP UI -->
+    <string name="pip_fullscreen">Full screen</string>
+    <!-- Button to play the current media on PIP UI -->
+    <string name="pip_play">Play</string>
+    <!-- Button to pause the current media on PIP UI -->
+    <string name="pip_pause">Pause</string>
+    <!-- Button to close PIP overlay menu on PIP UI -->
+    <string name="pip_cancel">Cancel</string>
+    <!-- Overlay text on PIP -->
+    <string name="pip_hold_home">Hold HOME to control PIP</string>
+</resources>
diff --git a/packages/SystemUI/res/values/styles_tv.xml b/packages/SystemUI/res/values/styles_tv.xml
new file mode 100644
index 0000000000000..3f0caab23ab47
--- /dev/null
+++ b/packages/SystemUI/res/values/styles_tv.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/**
+ * Copyright (c) 2016, 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.
+ */
+-->
+
+<resources xmlns:android="http://schemas.android.com/apk/res/android">
+    <style name="PipTheme" parent="@android:style/Theme.Translucent.NoTitleBar.Fullscreen">
+        <item name="android:windowBackground">@android:color/transparent</item>
+        <item name="android:backgroundDimEnabled">false</item>
+     </style>
+</resources>
diff --git a/packages/SystemUI/src/com/android/systemui/SystemUIApplication.java b/packages/SystemUI/src/com/android/systemui/SystemUIApplication.java
index 2d056bfc8a9a0..472648a2f7f6f 100644
--- a/packages/SystemUI/src/com/android/systemui/SystemUIApplication.java
+++ b/packages/SystemUI/src/com/android/systemui/SystemUIApplication.java
@@ -54,6 +54,7 @@ public class SystemUIApplication extends Application {
             com.android.systemui.power.PowerUI.class,
             com.android.systemui.media.RingtonePlayer.class,
             com.android.systemui.keyboard.KeyboardUI.class,
+            com.android.systemui.tv.pip.PipUI.class
     };
 
     /**
diff --git a/packages/SystemUI/src/com/android/systemui/tv/pip/PipManager.java b/packages/SystemUI/src/com/android/systemui/tv/pip/PipManager.java
new file mode 100644
index 0000000000000..2aac69aa79c30
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/tv/pip/PipManager.java
@@ -0,0 +1,295 @@
+/*
+ * Copyright (C) 2016 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.tv.pip;
+
+import android.app.ActivityManager.StackInfo;
+import android.app.ActivityManagerNative;
+import android.app.ActivityOptions;
+import android.app.IActivityManager;
+import android.app.ITaskStackListener;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.res.Resources;
+import android.graphics.Rect;
+import android.os.Handler;
+import android.os.RemoteException;
+import android.util.Log;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static android.app.ActivityManager.StackId.FULLSCREEN_WORKSPACE_STACK_ID;
+import static android.app.ActivityManager.StackId.PINNED_STACK_ID;
+
+/**
+ * Manages the picture-in-picture (PIP) UI and states.
+ */
+public class PipManager {
+    private static final String TAG = "PipManager";
+    private static final boolean DEBUG = false;
+
+    private static PipManager sPipManager;
+
+    private static final int STATE_NO_PIP = 0;
+    private static final int STATE_PIP_OVERLAY = 1;
+    private static final int STATE_PIP_MENU = 2;
+
+    private Context mContext;
+    private IActivityManager mActivityManager;
+    private int mState = STATE_NO_PIP;
+    private final Handler mHandler = new Handler();
+    private List<Listener> mListeners = new ArrayList<>();
+    private Rect mPipBound;
+    private Rect mMenuModePipBound;
+    private boolean mInitialized;
+    private final Runnable mOnActivityPinnedRunnable = new Runnable() {
+        @Override
+        public void run() {
+            StackInfo stackInfo = null;
+            try {
+                stackInfo = mActivityManager.getStackInfo(PINNED_STACK_ID);
+                if (stackInfo == null) {
+                    Log.w(TAG, "There is no pinned stack");
+                    return;
+                }
+            } catch (RemoteException e) {
+                Log.e(TAG, "getStackInfo failed", e);
+                return;
+            }
+            if (DEBUG) Log.d(TAG, "PINNED_STACK:" + stackInfo);
+            mState = STATE_PIP_OVERLAY;
+            launchPipOverlayActivity();
+        }
+    };
+    private final Runnable mOnTaskStackChanged = new Runnable() {
+        @Override
+        public void run() {
+            if (mState != STATE_NO_PIP) {
+                // TODO: check whether PIP task is closed.
+            }
+        }
+    };
+
+    private final BroadcastReceiver mPipButtonReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            if (DEBUG) Log.d(TAG, "PIP button pressed");
+            if (!hasPipTasks()) {
+                startPip();
+            } else if (mState == STATE_PIP_OVERLAY) {
+                showPipMenu();
+            }
+        }
+    };
+
+    private PipManager() { }
+
+    /**
+     * Initializes {@link PipManager}.
+     */
+    public void initialize(Context context) {
+        if (mInitialized) {
+            return;
+        }
+        mInitialized = true;
+        mContext = context;
+        Resources res = context.getResources();
+        mPipBound = Rect.unflattenFromString(res.getString(
+                com.android.internal.R.string.config_defaultPictureInPictureBounds));
+        mMenuModePipBound = Rect.unflattenFromString(res.getString(
+                com.android.internal.R.string.config_centeredPictureInPictureBounds));
+
+        mActivityManager = ActivityManagerNative.getDefault();
+        TaskStackListener taskStackListener = new TaskStackListener();
+        IActivityManager iam = ActivityManagerNative.getDefault();
+        try {
+            iam.registerTaskStackListener(taskStackListener);
+        } catch (RemoteException e) {
+            Log.e(TAG, "registerTaskStackListener failed", e);
+        }
+        IntentFilter intentFilter = new IntentFilter();
+        intentFilter.addAction(Intent.ACTION_PICTURE_IN_PICTURE_BUTTON);
+        mContext.registerReceiver(mPipButtonReceiver, intentFilter);
+    }
+
+    private void startPip() {
+        try {
+            mActivityManager.moveTopActivityToPinnedStack(FULLSCREEN_WORKSPACE_STACK_ID, mPipBound);
+        } catch (RemoteException|IllegalArgumentException e) {
+            Log.e(TAG, "moveTopActivityToPinnedStack failed", e);
+        }
+
+    }
+
+    /**
+     * Closes PIP (PIPped activity and PIP system UI).
+     */
+    public void closePip() {
+        mState = STATE_NO_PIP;
+        StackInfo stackInfo = null;
+        try {
+            stackInfo = mActivityManager.getStackInfo(PINNED_STACK_ID);
+            if (stackInfo == null) {
+                return;
+            }
+        } catch (RemoteException e) {
+            Log.e(TAG, "getStackInfo failed", e);
+            return;
+        }
+        for (int taskId : stackInfo.taskIds) {
+            try {
+                mActivityManager.removeTask(taskId);
+            } catch (RemoteException e) {
+                Log.e(TAG, "removeTask failed", e);
+            }
+        }
+    }
+
+    /**
+     * Moves the PIPped activity to the fullscreen and closes PIP system UI.
+     */
+    public void movePipToFullscreen() {
+        mState = STATE_NO_PIP;
+        for (int i = mListeners.size() - 1; i >= 0; --i) {
+            mListeners.get(i).onMoveToFullscreen();
+        }
+        try {
+            mActivityManager.moveTasksToFullscreenStack(PINNED_STACK_ID, true);
+        } catch (RemoteException e) {
+            Log.e(TAG, "moveTasksToFullscreenStack failed", e);
+        }
+    }
+
+    /**
+     * Shows PIP overlay UI by launching {@link PipOverlayActivity}. It also locates the pinned
+     * stack to the default PIP bound {@link com.android.internal.R.string
+     * .config_defaultPictureInPictureBounds}.
+     */
+    public void showPipOverlay() {
+        if (DEBUG) Log.d(TAG, "showPipOverlay()");
+        try {
+            mActivityManager.resizeStack(PINNED_STACK_ID, mPipBound, false);
+        } catch (Exception e) {
+            Log.e(TAG, "resizeStack failed", e);
+            closePip();
+            return;
+        }
+        mState = STATE_PIP_OVERLAY;
+        launchPipOverlayActivity();
+    }
+
+    /**
+     * Shows PIP menu UI by launching {@link PipMenuActivity}. It also locates the pinned
+     * stack to the centered PIP bound {@link com.android.internal.R.string
+     * .config_centeredPictureInPictureBounds}.
+     */
+    public void showPipMenu() {
+        if (DEBUG) Log.d(TAG, "showPipMenu()");
+        try {
+            mActivityManager.resizeStack(PINNED_STACK_ID, mMenuModePipBound, false);
+        } catch (Exception e) {
+            Log.e(TAG, "resizeStack failed", e);
+            closePip();
+            return;
+        }
+        mState = STATE_PIP_MENU;
+        for (int i = mListeners.size() - 1; i >= 0; --i) {
+            mListeners.get(i).onShowPipMenu();
+        }
+        Intent intent = new Intent(mContext, PipMenuActivity.class);
+        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        final ActivityOptions options = ActivityOptions.makeBasic();
+        options.setLaunchStackId(PINNED_STACK_ID);
+        mContext.startActivity(intent, options.toBundle());
+    }
+
+    /**
+     * Adds {@link Listener}.
+     */
+    public void addListener(Listener listener) {
+        mListeners.add(listener);
+    }
+
+    /**
+     * Removes {@link Listener}.
+     */
+    public void removeListener(Listener listener) {
+        mListeners.remove(listener);
+    }
+
+    private void launchPipOverlayActivity() {
+        Intent intent = new Intent(mContext, PipOverlayActivity.class);
+        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        final ActivityOptions options = ActivityOptions.makeBasic();
+        options.setLaunchStackId(PINNED_STACK_ID);
+        mContext.startActivity(intent, options.toBundle());
+    }
+
+    private boolean hasPipTasks() {
+        try {
+            StackInfo stackInfo = mActivityManager.getStackInfo(PINNED_STACK_ID);
+            return stackInfo != null;
+        } catch (RemoteException e) {
+            Log.e(TAG, "getStackInfo failed", e);
+            return false;
+        }
+    }
+
+    private class TaskStackListener extends ITaskStackListener.Stub {
+        @Override
+        public void onTaskStackChanged() throws RemoteException {
+            // Post the message back to the UI thread.
+            mHandler.post(mOnTaskStackChanged);
+        }
+
+        @Override
+        public void onActivityPinned()  throws RemoteException {
+            // Post the message back to the UI thread.
+            mHandler.post(mOnActivityPinnedRunnable);
+        }
+    }
+
+    /**
+     * A listener interface to receive notification on changes in PIP.
+     */
+    public interface Listener {
+        /**
+         * Invoked when a PIPped activity is closed.
+         */
+        void onPipActivityClosed();
+        /**
+         * Invoked when the PIP menu gets shown.
+         */
+        void onShowPipMenu();
+        /**
+         * Invoked when the PIPped activity is returned back to the fullscreen.
+         */
+        void onMoveToFullscreen();
+    }
+
+    /**
+     * Gets an instance of {@link PipManager}.
+     */
+    public static PipManager getInstance() {
+        if (sPipManager == null) {
+            sPipManager = new PipManager();
+        }
+        return sPipManager;
+    }
+}
diff --git a/packages/SystemUI/src/com/android/systemui/tv/pip/PipMenuActivity.java b/packages/SystemUI/src/com/android/systemui/tv/pip/PipMenuActivity.java
new file mode 100644
index 0000000000000..124832143f62a
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/tv/pip/PipMenuActivity.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2016 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.tv.pip;
+
+import android.app.Activity;
+import android.media.session.MediaController;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+
+import com.android.systemui.R;
+
+/**
+ * Activity to show the PIP menu to control PIP.
+ */
+public class PipMenuActivity extends Activity implements PipManager.Listener {
+    private static final String TAG = "PipMenuActivity";
+    private static final boolean DEBUG = false;
+
+    private final PipManager mPipManager = PipManager.getInstance();
+    private MediaController mMediaController;
+
+    @Override
+    protected void onCreate(Bundle bundle) {
+        super.onCreate(bundle);
+        setContentView(R.layout.tv_pip_menu);
+        mPipManager.addListener(this);
+        findViewById(R.id.full).setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                mPipManager.movePipToFullscreen();
+            }
+        });
+        findViewById(R.id.exit).setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                mPipManager.closePip();
+                finish();
+            }
+        });
+        findViewById(R.id.cancel).setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                mPipManager.showPipOverlay();
+                finish();
+            }
+        });
+    }
+
+    @Override
+    protected void onDestroy() {
+        mPipManager.removeListener(this);
+        super.onDestroy();
+    }
+
+    @Override
+    public void onBackPressed() {
+        mPipManager.showPipOverlay();
+        finish();
+    }
+
+    @Override
+    public void onPipActivityClosed() {
+        finish();
+    }
+
+    @Override
+    public void onShowPipMenu() { }
+
+    @Override
+    public void onMoveToFullscreen() {
+        finish();
+    }
+}
diff --git a/packages/SystemUI/src/com/android/systemui/tv/pip/PipOverlayActivity.java b/packages/SystemUI/src/com/android/systemui/tv/pip/PipOverlayActivity.java
new file mode 100644
index 0000000000000..de997a8c779f6
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/tv/pip/PipOverlayActivity.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2016 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.tv.pip;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.os.Handler;
+import android.util.Log;
+import android.view.View;
+
+import com.android.systemui.R;
+
+/**
+ * Activity to show an overlay on top of PIP activity to show how to pop up PIP menu.
+ */
+public class PipOverlayActivity extends Activity implements PipManager.Listener {
+    private static final String TAG = "PipOverlayActivity";
+    private static final boolean DEBUG = false;
+
+    private static final long SHOW_GUIDE_OVERLAY_VIEW_DURATION_MS = 2000;
+
+    private final PipManager mPipManager = PipManager.getInstance();
+    private final Handler mHandler = new Handler();
+
+    @Override
+    protected void onCreate(Bundle bundle) {
+        super.onCreate(bundle);
+        setContentView(R.layout.tv_pip_overlay);
+        mPipManager.addListener(this);
+        final View overlayView = findViewById(R.id.guide_overlay);
+        // TODO: apply animation
+        overlayView.setVisibility(View.VISIBLE);
+        mHandler.postDelayed(new Runnable() {
+            @Override
+            public void run() {
+                overlayView.setVisibility(View.INVISIBLE);
+            }
+        }, SHOW_GUIDE_OVERLAY_VIEW_DURATION_MS);
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        mHandler.removeCallbacksAndMessages(null);
+        mPipManager.removeListener(this);
+    }
+
+    @Override
+    public void onPipActivityClosed() {
+        finish();
+    }
+
+    @Override
+    public void onShowPipMenu() {
+        finish();
+    }
+
+    @Override
+    public void onMoveToFullscreen() {
+        finish();
+    }
+}
diff --git a/packages/SystemUI/src/com/android/systemui/tv/pip/PipUI.java b/packages/SystemUI/src/com/android/systemui/tv/pip/PipUI.java
new file mode 100644
index 0000000000000..182b9b0deb817
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/tv/pip/PipUI.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2016 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.tv.pip;
+
+import android.content.pm.PackageManager;
+import android.content.res.Configuration;
+
+import com.android.systemui.SystemUI;
+
+import static android.content.pm.PackageManager.FEATURE_LEANBACK;
+import static android.content.pm.PackageManager.FEATURE_PICTURE_IN_PICTURE;
+
+/**
+ * Controls the picture-in-picture window for TV devices.
+ */
+public class PipUI extends SystemUI {
+    private boolean mSupportPip;
+
+    @Override
+    public void start() {
+        PackageManager pm = mContext.getPackageManager();
+        mSupportPip = pm.hasSystemFeature(FEATURE_PICTURE_IN_PICTURE)
+                && pm.hasSystemFeature(FEATURE_LEANBACK);
+        if (!mSupportPip) {
+            return;
+        }
+        PipManager pipManager = PipManager.getInstance();
+        pipManager.initialize(mContext);
+    }
+
+    @Override
+    protected void onConfigurationChanged(Configuration newConfig) {
+        super.onConfigurationChanged(newConfig);
+        if (!mSupportPip) {
+            return;
+        }
+        // TODO: handle configuration change.
+    }
+}