Request Keyboard Shortcuts for SysUI Dialog via Window

Keyboard shortcuts are requested via WindowManager, and
the request pipes through to the view root and the window
callback.

Bug: 22405482
Change-Id: Ic0071e91c7b554be3ac9df71e9539ee8a60e822e

23 files changed, 626 insertions, 36 deletions

diff --git a/api/current.txt b/api/current.txt
index 629d832c0c3c..1dcd309b16ca 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -3505,6 +3505,7 @@ package android.app {
     method public boolean onPreparePanel(int, android.view.View, android.view.Menu);
     method public void onProvideAssistContent(android.app.assist.AssistContent);
     method public void onProvideAssistData(android.os.Bundle);
+    method public void onProvideKeyboardShortcuts(java.util.List<android.view.KeyboardShortcutGroup>, android.view.Menu);
     method public android.net.Uri onProvideReferrer();
     method public void onRequestPermissionsResult(int, java.lang.String[], int[]);
     method protected void onRestart();
@@ -4189,6 +4190,7 @@ package android.app {
     method public void onPanelClosed(int, android.view.Menu);
     method public boolean onPrepareOptionsMenu(android.view.Menu);
     method public boolean onPreparePanel(int, android.view.View, android.view.Menu);
+    method public void onProvideKeyboardShortcuts(java.util.List<android.view.KeyboardShortcutGroup>, android.view.Menu);
     method public void onRestoreInstanceState(android.os.Bundle);
     method public android.os.Bundle onSaveInstanceState();
     method public boolean onSearchRequested(android.view.SearchEvent);
@@ -33502,6 +33504,7 @@ package android.service.dreams {
     method public boolean onMenuOpened(int, android.view.Menu);
     method public void onPanelClosed(int, android.view.Menu);
     method public boolean onPreparePanel(int, android.view.View, android.view.Menu);
+    method public void onProvideKeyboardShortcuts(java.util.List<android.view.KeyboardShortcutGroup>, android.view.Menu);
     method public boolean onSearchRequested(android.view.SearchEvent);
     method public boolean onSearchRequested();
     method public void onWakeUp();
@@ -40390,6 +40393,27 @@ package android.view {
     method public void startTracking(android.view.KeyEvent, java.lang.Object);
   }
 
+  public final class KeyboardShortcutGroup implements android.os.Parcelable {
+    ctor public KeyboardShortcutGroup(java.lang.CharSequence, java.util.List<android.view.KeyboardShortcutInfo>);
+    ctor public KeyboardShortcutGroup(java.lang.CharSequence);
+    method public void addItem(android.view.KeyboardShortcutInfo);
+    method public int describeContents();
+    method public java.util.List<android.view.KeyboardShortcutInfo> getItems();
+    method public java.lang.CharSequence getLabel();
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final android.os.Parcelable.Creator<android.view.KeyboardShortcutGroup> CREATOR;
+  }
+
+  public final class KeyboardShortcutInfo implements android.os.Parcelable {
+    ctor public KeyboardShortcutInfo(java.lang.CharSequence, char, int);
+    method public int describeContents();
+    method public char getBaseCharacter();
+    method public java.lang.CharSequence getLabel();
+    method public int getModifiers();
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final android.os.Parcelable.Creator<android.view.KeyboardShortcutInfo> CREATOR;
+  }
+
   public abstract class LayoutInflater {
     ctor protected LayoutInflater(android.content.Context);
     ctor protected LayoutInflater(android.view.LayoutInflater, android.content.Context);
@@ -42391,6 +42415,7 @@ package android.view {
     method public abstract boolean onMenuOpened(int, android.view.Menu);
     method public abstract void onPanelClosed(int, android.view.Menu);
     method public abstract boolean onPreparePanel(int, android.view.View, android.view.Menu);
+    method public abstract void onProvideKeyboardShortcuts(java.util.List<android.view.KeyboardShortcutGroup>, android.view.Menu);
     method public abstract boolean onSearchRequested();
     method public abstract boolean onSearchRequested(android.view.SearchEvent);
     method public abstract void onWindowAttributesChanged(android.view.WindowManager.LayoutParams);
diff --git a/api/system-current.txt b/api/system-current.txt
index 6a36ce05acca..adce4806c654 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -3611,6 +3611,7 @@ package android.app {
     method public boolean onPreparePanel(int, android.view.View, android.view.Menu);
     method public void onProvideAssistContent(android.app.assist.AssistContent);
     method public void onProvideAssistData(android.os.Bundle);
+    method public void onProvideKeyboardShortcuts(java.util.List<android.view.KeyboardShortcutGroup>, android.view.Menu);
     method public android.net.Uri onProvideReferrer();
     method public void onRequestPermissionsResult(int, java.lang.String[], int[]);
     method protected void onRestart();
@@ -4310,6 +4311,7 @@ package android.app {
     method public void onPanelClosed(int, android.view.Menu);
     method public boolean onPrepareOptionsMenu(android.view.Menu);
     method public boolean onPreparePanel(int, android.view.View, android.view.Menu);
+    method public void onProvideKeyboardShortcuts(java.util.List<android.view.KeyboardShortcutGroup>, android.view.Menu);
     method public void onRestoreInstanceState(android.os.Bundle);
     method public android.os.Bundle onSaveInstanceState();
     method public boolean onSearchRequested(android.view.SearchEvent);
@@ -35640,6 +35642,7 @@ package android.service.dreams {
     method public boolean onMenuOpened(int, android.view.Menu);
     method public void onPanelClosed(int, android.view.Menu);
     method public boolean onPreparePanel(int, android.view.View, android.view.Menu);
+    method public void onProvideKeyboardShortcuts(java.util.List<android.view.KeyboardShortcutGroup>, android.view.Menu);
     method public boolean onSearchRequested(android.view.SearchEvent);
     method public boolean onSearchRequested();
     method public void onWakeUp();
@@ -42741,6 +42744,27 @@ package android.view {
     method public void startTracking(android.view.KeyEvent, java.lang.Object);
   }
 
+  public final class KeyboardShortcutGroup implements android.os.Parcelable {
+    ctor public KeyboardShortcutGroup(java.lang.CharSequence, java.util.List<android.view.KeyboardShortcutInfo>);
+    ctor public KeyboardShortcutGroup(java.lang.CharSequence);
+    method public void addItem(android.view.KeyboardShortcutInfo);
+    method public int describeContents();
+    method public java.util.List<android.view.KeyboardShortcutInfo> getItems();
+    method public java.lang.CharSequence getLabel();
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final android.os.Parcelable.Creator<android.view.KeyboardShortcutGroup> CREATOR;
+  }
+
+  public final class KeyboardShortcutInfo implements android.os.Parcelable {
+    ctor public KeyboardShortcutInfo(java.lang.CharSequence, char, int);
+    method public int describeContents();
+    method public char getBaseCharacter();
+    method public java.lang.CharSequence getLabel();
+    method public int getModifiers();
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final android.os.Parcelable.Creator<android.view.KeyboardShortcutInfo> CREATOR;
+  }
+
   public abstract class LayoutInflater {
     ctor protected LayoutInflater(android.content.Context);
     ctor protected LayoutInflater(android.view.LayoutInflater, android.content.Context);
@@ -44743,6 +44767,7 @@ package android.view {
     method public abstract boolean onMenuOpened(int, android.view.Menu);
     method public abstract void onPanelClosed(int, android.view.Menu);
     method public abstract boolean onPreparePanel(int, android.view.View, android.view.Menu);
+    method public abstract void onProvideKeyboardShortcuts(java.util.List<android.view.KeyboardShortcutGroup>, android.view.Menu);
     method public abstract boolean onSearchRequested();
     method public abstract boolean onSearchRequested(android.view.SearchEvent);
     method public abstract void onWindowAttributesChanged(android.view.WindowManager.LayoutParams);
diff --git a/api/test-current.txt b/api/test-current.txt
index 21b101fef449..3fed63215746 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -3505,6 +3505,7 @@ package android.app {
     method public boolean onPreparePanel(int, android.view.View, android.view.Menu);
     method public void onProvideAssistContent(android.app.assist.AssistContent);
     method public void onProvideAssistData(android.os.Bundle);
+    method public void onProvideKeyboardShortcuts(java.util.List<android.view.KeyboardShortcutGroup>, android.view.Menu);
     method public android.net.Uri onProvideReferrer();
     method public void onRequestPermissionsResult(int, java.lang.String[], int[]);
     method protected void onRestart();
@@ -4189,6 +4190,7 @@ package android.app {
     method public void onPanelClosed(int, android.view.Menu);
     method public boolean onPrepareOptionsMenu(android.view.Menu);
     method public boolean onPreparePanel(int, android.view.View, android.view.Menu);
+    method public void onProvideKeyboardShortcuts(java.util.List<android.view.KeyboardShortcutGroup>, android.view.Menu);
     method public void onRestoreInstanceState(android.os.Bundle);
     method public android.os.Bundle onSaveInstanceState();
     method public boolean onSearchRequested(android.view.SearchEvent);
@@ -33516,6 +33518,7 @@ package android.service.dreams {
     method public boolean onMenuOpened(int, android.view.Menu);
     method public void onPanelClosed(int, android.view.Menu);
     method public boolean onPreparePanel(int, android.view.View, android.view.Menu);
+    method public void onProvideKeyboardShortcuts(java.util.List<android.view.KeyboardShortcutGroup>, android.view.Menu);
     method public boolean onSearchRequested(android.view.SearchEvent);
     method public boolean onSearchRequested();
     method public void onWakeUp();
@@ -40406,6 +40409,27 @@ package android.view {
     method public void startTracking(android.view.KeyEvent, java.lang.Object);
   }
 
+  public final class KeyboardShortcutGroup implements android.os.Parcelable {
+    ctor public KeyboardShortcutGroup(java.lang.CharSequence, java.util.List<android.view.KeyboardShortcutInfo>);
+    ctor public KeyboardShortcutGroup(java.lang.CharSequence);
+    method public void addItem(android.view.KeyboardShortcutInfo);
+    method public int describeContents();
+    method public java.util.List<android.view.KeyboardShortcutInfo> getItems();
+    method public java.lang.CharSequence getLabel();
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final android.os.Parcelable.Creator<android.view.KeyboardShortcutGroup> CREATOR;
+  }
+
+  public final class KeyboardShortcutInfo implements android.os.Parcelable {
+    ctor public KeyboardShortcutInfo(java.lang.CharSequence, char, int);
+    method public int describeContents();
+    method public char getBaseCharacter();
+    method public java.lang.CharSequence getLabel();
+    method public int getModifiers();
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final android.os.Parcelable.Creator<android.view.KeyboardShortcutInfo> CREATOR;
+  }
+
   public abstract class LayoutInflater {
     ctor protected LayoutInflater(android.content.Context);
     ctor protected LayoutInflater(android.view.LayoutInflater, android.content.Context);
@@ -42407,6 +42431,7 @@ package android.view {
     method public abstract boolean onMenuOpened(int, android.view.Menu);
     method public abstract void onPanelClosed(int, android.view.Menu);
     method public abstract boolean onPreparePanel(int, android.view.View, android.view.Menu);
+    method public abstract void onProvideKeyboardShortcuts(java.util.List<android.view.KeyboardShortcutGroup>, android.view.Menu);
     method public abstract boolean onSearchRequested();
     method public abstract boolean onSearchRequested(android.view.SearchEvent);
     method public abstract void onWindowAttributesChanged(android.view.WindowManager.LayoutParams);
diff --git a/core/java/android/app/Activity.java b/core/java/android/app/Activity.java
index 34527c2623c6..e31259692501 100644
--- a/core/java/android/app/Activity.java
+++ b/core/java/android/app/Activity.java
@@ -62,6 +62,7 @@ import android.database.Cursor;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.drawable.Drawable;
+import android.graphics.drawable.Icon;
 import android.media.AudioManager;
 import android.media.session.MediaController;
 import android.net.Uri;
@@ -71,6 +72,7 @@ import android.os.Handler;
 import android.os.IBinder;
 import android.os.Looper;
 import android.os.Parcelable;
+import android.os.PersistableBundle;
 import android.os.RemoteException;
 import android.os.StrictMode;
 import android.os.UserHandle;
@@ -78,23 +80,28 @@ import android.text.Selection;
 import android.text.SpannableStringBuilder;
 import android.text.TextUtils;
 import android.text.method.TextKeyListener;
+import android.transition.Scene;
+import android.transition.TransitionManager;
+import android.util.ArrayMap;
 import android.util.AttributeSet;
 import android.util.EventLog;
 import android.util.Log;
 import android.util.PrintWriterPrinter;
 import android.util.Slog;
 import android.util.SparseArray;
+import android.util.SuperNotCalledException;
 import android.view.ActionMode;
 import android.view.ContextMenu;
 import android.view.ContextMenu.ContextMenuInfo;
 import android.view.ContextThemeWrapper;
 import android.view.KeyEvent;
+import android.view.KeyboardShortcutGroup;
+import android.view.KeyboardShortcutInfo;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.MotionEvent;
-import com.android.internal.policy.PhoneWindow;
 import android.view.SearchEvent;
 import android.view.View;
 import android.view.View.OnCreateContextMenuListener;
@@ -103,10 +110,17 @@ import android.view.ViewGroup.LayoutParams;
 import android.view.ViewManager;
 import android.view.ViewRootImpl;
 import android.view.Window;
+import android.view.Window.WindowControllerCallback;
 import android.view.WindowManager;
 import android.view.WindowManagerGlobal;
 import android.view.accessibility.AccessibilityEvent;
 import android.widget.AdapterView;
+import android.widget.Toolbar;
+
+import com.android.internal.app.IVoiceInteractor;
+import com.android.internal.app.ToolbarActionBar;
+import com.android.internal.app.WindowDecorActionBar;
+import com.android.internal.policy.PhoneWindow;
 
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
@@ -116,6 +130,8 @@ import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 
+import static java.lang.Character.MIN_VALUE;
+
 /**
  * An activity is a single, focused thing that the user can do.  Almost all
  * activities interact with the user, so the Activity class takes care of
@@ -1594,6 +1610,30 @@ public class Activity extends ContextThemeWrapper
     public void onProvideAssistContent(AssistContent outContent) {
     }
 
+    @Override
+    public void onProvideKeyboardShortcuts(List<KeyboardShortcutGroup> data, Menu menu) {
+        if (menu == null) {
+          return;
+        }
+        KeyboardShortcutGroup group = null;
+        int menuSize = menu.size();
+        for (int i = 0; i < menuSize; ++i) {
+            final MenuItem item = menu.getItem(i);
+            final CharSequence title = item.getTitle();
+            final char alphaShortcut = item.getAlphabeticShortcut();
+            if (title != null && alphaShortcut != MIN_VALUE) {
+                if (group == null) {
+                    group = new KeyboardShortcutGroup(null /* no label */);
+                }
+                group.addItem(new KeyboardShortcutInfo(
+                    title, alphaShortcut, KeyEvent.META_CTRL_ON));
+            }
+        }
+        if (group != null) {
+            data.add(group);
+        }
+    }
+
     /**
      * Ask to have the current assistant shown to the user.  This only works if the calling
      * activity is the current foreground activity.  It is the same as calling
diff --git a/core/java/android/app/Dialog.java b/core/java/android/app/Dialog.java
index 6e8e2c44ce37..79461b4863ef 100644
--- a/core/java/android/app/Dialog.java
+++ b/core/java/android/app/Dialog.java
@@ -21,9 +21,8 @@ import android.annotation.DrawableRes;
 import android.annotation.IdRes;
 import android.annotation.LayoutRes;
 import android.annotation.NonNull;
-import android.annotation.StringRes;
-
 import android.annotation.Nullable;
+import android.annotation.StringRes;
 import android.annotation.StyleRes;
 import android.content.ComponentName;
 import android.content.Context;
@@ -44,11 +43,11 @@ import android.view.ContextMenu.ContextMenuInfo;
 import android.view.ContextThemeWrapper;
 import android.view.Gravity;
 import android.view.KeyEvent;
+import android.view.KeyboardShortcutGroup;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.MotionEvent;
-import com.android.internal.policy.PhoneWindow;
 import android.view.SearchEvent;
 import android.view.View;
 import android.view.View.OnCreateContextMenuListener;
@@ -60,8 +59,10 @@ import android.view.accessibility.AccessibilityEvent;
 
 import com.android.internal.R;
 import com.android.internal.app.WindowDecorActionBar;
+import com.android.internal.policy.PhoneWindow;
 
 import java.lang.ref.WeakReference;
+import java.util.List;
 
 /**
  * Base class for Dialogs.
@@ -1081,6 +1082,13 @@ public class Dialog implements DialogInterface, Window.Callback,
     }
 
     /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void onProvideKeyboardShortcuts(List<KeyboardShortcutGroup> data, Menu menu) {
+    }
+
+    /**
      * @return The activity associated with this dialog, or null if there is no associated activity.
      */
     private ComponentName getAssociatedActivity() {
diff --git a/core/java/android/service/dreams/DreamService.java b/core/java/android/service/dreams/DreamService.java
index bb46e8302de6..816ecde84377 100644
--- a/core/java/android/service/dreams/DreamService.java
+++ b/core/java/android/service/dreams/DreamService.java
@@ -15,9 +15,6 @@
  */
 package android.service.dreams;
 
-import java.io.FileDescriptor;
-import java.io.PrintWriter;
-
 import android.annotation.IdRes;
 import android.annotation.LayoutRes;
 import android.annotation.Nullable;
@@ -33,27 +30,32 @@ import android.os.IBinder;
 import android.os.PowerManager;
 import android.os.RemoteException;
 import android.os.ServiceManager;
+import android.util.MathUtils;
 import android.util.Slog;
 import android.view.ActionMode;
 import android.view.Display;
 import android.view.KeyEvent;
+import android.view.KeyboardShortcutGroup;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.MotionEvent;
-import com.android.internal.policy.PhoneWindow;
 import android.view.SearchEvent;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.Window;
 import android.view.WindowManager;
-import android.view.WindowManagerGlobal;
 import android.view.WindowManager.LayoutParams;
+import android.view.WindowManagerGlobal;
 import android.view.accessibility.AccessibilityEvent;
-import android.util.MathUtils;
 
+import com.android.internal.policy.PhoneWindow;
 import com.android.internal.util.DumpUtils;
 import com.android.internal.util.DumpUtils.Dump;
 
+import java.io.FileDescriptor;
+import java.io.PrintWriter;
+import java.util.List;
+
 /**
  * Extend this class to implement a custom dream (available to the user as a "Daydream").
  *
@@ -365,6 +367,11 @@ public class DreamService extends Service implements Window.Callback {
     @Override
     public void onActionModeFinished(ActionMode mode) {
     }
+
+    /** {@inheritDoc} */
+    @Override
+    public void onProvideKeyboardShortcuts(List<KeyboardShortcutGroup> data, Menu menu) {
+    }
     // end Window.Callback methods
 
     // begin public api
diff --git a/core/java/android/view/IWindow.aidl b/core/java/android/view/IWindow.aidl
index 9e478c1d1e73..923139406088 100644
--- a/core/java/android/view/IWindow.aidl
+++ b/core/java/android/view/IWindow.aidl
@@ -25,6 +25,8 @@ import android.view.DragEvent;
 import android.view.KeyEvent;
 import android.view.MotionEvent;
 
+import com.android.internal.os.IResultReceiver;
+
 /**
  * API back to a client window that the Window Manager uses to inform it of
  * interesting things happening.
@@ -83,4 +85,9 @@ oneway interface IWindow {
      * Called for non-application windows when the enter animation has completed.
      */
     void dispatchWindowShown();
+
+    /**
+     * Called when Keyboard Shortcuts are requested for the window.
+     */
+    void requestAppKeyboardShortcuts(IResultReceiver receiver);
 }
diff --git a/core/java/android/view/IWindowManager.aidl b/core/java/android/view/IWindowManager.aidl
index 84d312d59b64..b045c17a9295 100644
--- a/core/java/android/view/IWindowManager.aidl
+++ b/core/java/android/view/IWindowManager.aidl
@@ -17,6 +17,7 @@
 package android.view;
 
 import com.android.internal.app.IAssistScreenshotReceiver;
+import com.android.internal.os.IResultReceiver;
 import com.android.internal.view.IInputContext;
 import com.android.internal.view.IInputMethodClient;
 
@@ -370,4 +371,11 @@ interface IWindowManager
      * @param alpha The translucency of the dim layer, between 0 and 1.
      */
     void setResizeDimLayer(boolean visible, int targetStackId, float alpha);
+
+    /**
+     * Requests Keyboard Shortcuts from the displayed window.
+     *
+     * @param receiver The receiver to deliver the results to.
+     */
+    void requestAppKeyboardShortcuts(IResultReceiver receiver);
 }
diff --git a/core/java/android/view/KeyboardShortcutGroup.java b/core/java/android/view/KeyboardShortcutGroup.java
new file mode 100644
index 000000000000..013255b9a612
--- /dev/null
+++ b/core/java/android/view/KeyboardShortcutGroup.java
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2015 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 android.view;
+
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.os.Parcel;
+import android.os.Parcelable;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import static com.android.internal.util.Preconditions.checkNotNull;
+
+/**
+ * A group of {@link KeyboardShortcutInfo}.
+ */
+public final class KeyboardShortcutGroup implements Parcelable {
+    private final CharSequence mLabel;
+    private final List<KeyboardShortcutInfo> mItems;
+
+    /**
+     * @param label The title to be used for this group, or null if there is none.
+     * @param items The set of items to be included.
+     */
+    public KeyboardShortcutGroup(@Nullable CharSequence label,
+            @NonNull List<KeyboardShortcutInfo> items) {
+        mLabel = label;
+        mItems = new ArrayList<>(checkNotNull(items));
+    }
+
+    /**
+     * @param label The title to be used for this group, or null if there is none.
+     */
+    public KeyboardShortcutGroup(@Nullable CharSequence label) {
+        this(label, Collections.<KeyboardShortcutInfo>emptyList());
+    }
+
+    private KeyboardShortcutGroup(Parcel source) {
+        mItems = new ArrayList<>();
+        mLabel = source.readCharSequence();
+        source.readTypedList(mItems, KeyboardShortcutInfo.CREATOR);
+    }
+
+    /**
+     * Returns the label to be used to describe this group.
+     */
+    public CharSequence getLabel() {
+        return mLabel;
+    }
+
+    /**
+     * Returns the list of items included in this group.
+     */
+    public List<KeyboardShortcutInfo> getItems() {
+        return mItems;
+    }
+
+    /**
+     * Adds an item to the existing list.
+     *
+     * @param item The item to be added.
+     */
+    public void addItem(KeyboardShortcutInfo item) {
+        mItems.add(item);
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel dest, int flags) {
+        dest.writeCharSequence(mLabel);
+        dest.writeTypedList(mItems);
+    }
+
+    public static final Creator<KeyboardShortcutGroup> CREATOR =
+            new Creator<KeyboardShortcutGroup>() {
+        public KeyboardShortcutGroup createFromParcel(Parcel source) {
+            return new KeyboardShortcutGroup(source);
+        }
+        public KeyboardShortcutGroup[] newArray(int size) {
+            return new KeyboardShortcutGroup[size];
+        }
+    };
+}
\ No newline at end of file
diff --git a/core/java/android/view/KeyboardShortcutInfo.java b/core/java/android/view/KeyboardShortcutInfo.java
new file mode 100644
index 000000000000..2c9006deb189
--- /dev/null
+++ b/core/java/android/view/KeyboardShortcutInfo.java
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2015 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 android.view;
+
+import android.annotation.Nullable;
+import android.graphics.drawable.Icon;
+import android.os.Parcel;
+import android.os.Parcelable;
+
+import static com.android.internal.util.Preconditions.checkArgument;
+import static java.lang.Character.MIN_VALUE;
+
+/**
+ * Information about a Keyboard Shortcut.
+ */
+public final class KeyboardShortcutInfo implements Parcelable {
+    private final CharSequence mLabel;
+    private final Icon mIcon;
+    private final char mBaseCharacter;
+    private final int mModifiers;
+
+    /**
+     * @param label The label that identifies the action performed by this shortcut.
+     * @param icon An icon that identifies the action performed by this shortcut.
+     * @param baseCharacter The character that triggers the shortcut.
+     * @param modifiers The set of modifiers that, combined with the key, trigger the shortcut.
+     *     These should be a combination of {@link KeyEvent#META_CTRL_ON},
+     *     {@link KeyEvent#META_SHIFT_ON}, {@link KeyEvent#META_META_ON} and
+     *     {@link KeyEvent#META_ALT_ON}.
+     *
+     * @hide
+     */
+    public KeyboardShortcutInfo(
+            @Nullable CharSequence label, @Nullable Icon icon, char baseCharacter, int modifiers) {
+        mLabel = label;
+        mIcon = icon;
+        checkArgument(baseCharacter != MIN_VALUE);
+        mBaseCharacter = baseCharacter;
+        mModifiers = modifiers;
+    }
+
+    /**
+     * Convenience constructor for shortcuts with a label and no icon.
+     *
+     * @param label The label that identifies the action performed by this shortcut.
+     * @param baseCharacter The character that triggers the shortcut.
+     * @param modifiers The set of modifiers that, combined with the key, trigger the shortcut.
+     *     These should be a combination of {@link KeyEvent#META_CTRL_ON},
+     *     {@link KeyEvent#META_SHIFT_ON}, {@link KeyEvent#META_META_ON} and
+     *     {@link KeyEvent#META_ALT_ON}.
+     */
+    public KeyboardShortcutInfo(CharSequence label, char baseCharacter, int modifiers) {
+        mLabel = label;
+        checkArgument(baseCharacter != MIN_VALUE);
+        mBaseCharacter = baseCharacter;
+        mModifiers = modifiers;
+        mIcon = null;
+    }
+
+    private KeyboardShortcutInfo(Parcel source) {
+        mLabel = source.readCharSequence();
+        mIcon = (Icon) source.readParcelable(null);
+        mBaseCharacter = (char) source.readInt();
+        mModifiers = source.readInt();
+    }
+
+    /**
+     * Returns the label to be used to describe this shortcut.
+     */
+    @Nullable
+    public CharSequence getLabel() {
+        return mLabel;
+    }
+
+    /**
+     * Returns the icon to be used to describe this shortcut.
+     *
+     * @hide
+     */
+    @Nullable
+    public Icon getIcon() {
+        return mIcon;
+    }
+
+    /**
+     * Returns the base character that, combined with the modifiers, triggers this shortcut.
+     */
+    public char getBaseCharacter() {
+        return mBaseCharacter;
+    }
+
+    /**
+     * Returns the set of modifiers that, combined with the key, trigger this shortcut.
+     */
+    public int getModifiers() {
+        return mModifiers;
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel dest, int flags) {
+        dest.writeCharSequence(mLabel);
+        dest.writeParcelable(mIcon, 0);
+        dest.writeInt(mBaseCharacter);
+        dest.writeInt(mModifiers);
+    }
+
+    public static final Creator<KeyboardShortcutInfo> CREATOR =
+            new Creator<KeyboardShortcutInfo>() {
+        public KeyboardShortcutInfo createFromParcel(Parcel source) {
+            return new KeyboardShortcutInfo(source);
+        }
+        public KeyboardShortcutInfo[] newArray(int size) {
+            return new KeyboardShortcutInfo[size];
+        }
+    };
+}
\ No newline at end of file
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index 68f1ac3c1108..5559d4dbe705 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -79,10 +79,11 @@ import android.util.StateSet;
 import android.util.SuperNotCalledException;
 import android.util.TypedValue;
 import android.view.ContextMenu.ContextMenuInfo;
-import android.view.AccessibilityIterators.TextSegmentIterator;
 import android.view.AccessibilityIterators.CharacterTextSegmentIterator;
-import android.view.AccessibilityIterators.WordTextSegmentIterator;
 import android.view.AccessibilityIterators.ParagraphTextSegmentIterator;
+import android.view.AccessibilityIterators.TextSegmentIterator;
+import android.view.AccessibilityIterators.WordTextSegmentIterator;
+import android.view.ViewGroup.LayoutParams;
 import android.view.accessibility.AccessibilityEvent;
 import android.view.accessibility.AccessibilityEventSource;
 import android.view.accessibility.AccessibilityManager;
@@ -21715,6 +21716,13 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
     }
 
     /**
+     * @hide
+     */
+    public void requestKeyboardShortcuts(List<KeyboardShortcutGroup> data) {
+        // Do nothing.
+    }
+
+    /**
      * Interface definition for a callback to be invoked when a hardware key event is
      * dispatched to this view. The callback will be invoked before the key event is
      * given to the view. This is only useful for hardware keyboards; a software input
diff --git a/core/java/android/view/ViewRootImpl.java b/core/java/android/view/ViewRootImpl.java
index 3eb2e37be781..a14f0dcc2541 100644
--- a/core/java/android/view/ViewRootImpl.java
+++ b/core/java/android/view/ViewRootImpl.java
@@ -79,6 +79,7 @@ import android.view.inputmethod.InputMethodManager;
 import android.widget.Scroller;
 
 import com.android.internal.R;
+import com.android.internal.os.IResultReceiver;
 import com.android.internal.os.SomeArgs;
 import com.android.internal.policy.PhoneFallbackEventHandler;
 import com.android.internal.view.BaseSurfaceHolder;
@@ -3235,6 +3236,7 @@ public final class ViewRootImpl implements ViewParent,
     private final static int MSG_WINDOW_MOVED = 23;
     private final static int MSG_SYNTHESIZE_INPUT_EVENT = 24;
     private final static int MSG_DISPATCH_WINDOW_SHOWN = 25;
+    private final static int MSG_REQUEST_KEYBOARD_SHORTCUTS = 26;
 
     final class ViewRootHandler extends Handler {
         @Override
@@ -3511,7 +3513,11 @@ public final class ViewRootImpl implements ViewParent,
             } break;
             case MSG_DISPATCH_WINDOW_SHOWN: {
                 handleDispatchWindowShown();
-            }
+            } break;
+            case MSG_REQUEST_KEYBOARD_SHORTCUTS: {
+                IResultReceiver receiver = (IResultReceiver) msg.obj;
+                handleRequestKeyboardShortcuts(receiver);
+            } break;
             }
         }
     }
@@ -5404,6 +5410,19 @@ public final class ViewRootImpl implements ViewParent,
         mAttachInfo.mTreeObserver.dispatchOnWindowShown();
     }
 
+    public void handleRequestKeyboardShortcuts(IResultReceiver receiver) {
+        Bundle data = new Bundle();
+        ArrayList<KeyboardShortcutGroup> list = new ArrayList<>();
+        if (mView != null) {
+            mView.requestKeyboardShortcuts(list);
+        }
+        data.putParcelableArrayList(WindowManager.PARCEL_KEY_SHORTCUTS_ARRAY, list);
+        try {
+            receiver.send(0, data);
+        } catch (RemoteException e) {
+        }
+    }
+
     public void getLastTouchPoint(Point outLocation) {
         outLocation.x = (int) mLastTouchPoint.x;
         outLocation.y = (int) mLastTouchPoint.y;
@@ -6333,6 +6352,10 @@ public final class ViewRootImpl implements ViewParent,
         }
     }
 
+    public void dispatchRequestKeyboardShortcuts(IResultReceiver receiver) {
+        mHandler.obtainMessage(MSG_REQUEST_KEYBOARD_SHORTCUTS, receiver).sendToTarget();
+    }
+
     /**
      * Post a callback to send a
      * {@link AccessibilityEvent#TYPE_WINDOW_CONTENT_CHANGED} event.
@@ -6906,6 +6929,14 @@ public final class ViewRootImpl implements ViewParent,
                 viewAncestor.dispatchWindowShown();
             }
         }
+
+        @Override
+        public void requestAppKeyboardShortcuts(IResultReceiver receiver) {
+          ViewRootImpl viewAncestor = mViewAncestor.get();
+          if (viewAncestor != null) {
+            viewAncestor.dispatchRequestKeyboardShortcuts(receiver);
+          }
+        }
     }
 
     public static final class CalledFromWrongThreadException extends AndroidRuntimeException {
diff --git a/core/java/android/view/Window.java b/core/java/android/view/Window.java
index 0b06d1591731..d89369bef170 100644
--- a/core/java/android/view/Window.java
+++ b/core/java/android/view/Window.java
@@ -42,6 +42,8 @@ import android.transition.Transition;
 import android.transition.TransitionManager;
 import android.view.accessibility.AccessibilityEvent;
 
+import java.util.List;
+
 /**
  * Abstract base class for a top-level window look and behavior policy.  An
  * instance of this class should be used as the top-level view added to the
@@ -556,6 +558,15 @@ public abstract class Window {
          * @param mode The mode that was just finished.
          */
         public void onActionModeFinished(ActionMode mode);
+
+        /**
+         * Called when Keyboard Shortcuts are requested for the current window.
+         *
+         * @param data The data list to populate with shortcuts.
+         * @param menu The current menu, which may be null.
+         */
+        public void onProvideKeyboardShortcuts(
+                List<KeyboardShortcutGroup> data, @Nullable Menu menu);
     }
 
     /** @hide */
diff --git a/core/java/android/view/WindowCallbackWrapper.java b/core/java/android/view/WindowCallbackWrapper.java
index 8ce1f8c7e310..bed74e95ae0a 100644
--- a/core/java/android/view/WindowCallbackWrapper.java
+++ b/core/java/android/view/WindowCallbackWrapper.java
@@ -19,6 +19,8 @@ package android.view;
 
 import android.view.accessibility.AccessibilityEvent;
 
+import java.util.List;
+
 /**
  * A simple decorator stub for Window.Callback that passes through any calls
  * to the wrapped instance as a base implementation. Call super.foo() to call into
@@ -150,5 +152,10 @@ public class WindowCallbackWrapper implements Window.Callback {
     public void onActionModeFinished(ActionMode mode) {
         mWrapped.onActionModeFinished(mode);
     }
+
+    @Override
+    public void onProvideKeyboardShortcuts(List<KeyboardShortcutGroup> data, Menu menu) {
+        mWrapped.onProvideKeyboardShortcuts(data, menu);
+    }
 }
 
diff --git a/core/java/android/view/WindowManager.java b/core/java/android/view/WindowManager.java
index 251f4c802ce6..772eeec880ee 100644
--- a/core/java/android/view/WindowManager.java
+++ b/core/java/android/view/WindowManager.java
@@ -29,6 +29,8 @@ import android.os.Parcelable;
 import android.text.TextUtils;
 import android.util.Log;
 
+import java.util.List;
+
 
 /**
  * The interface that apps use to talk to the window manager.
@@ -118,6 +120,34 @@ public interface WindowManager extends ViewManager {
      */
     public void removeViewImmediate(View view);
 
+    /**
+     * Used to asynchronously request Keyboard Shortcuts from the focused window.
+     *
+     * @hide
+     */
+    public interface KeyboardShortcutsReceiver {
+        /**
+         * Callback used when the focused window keyboard shortcuts are ready to be displayed.
+         *
+         * @param result The keyboard shortcuts to be displayed.
+         */
+        void onKeyboardShortcutsReceived(List<KeyboardShortcutGroup> result);
+    }
+
+    /**
+     * @hide
+     */
+    public static final String PARCEL_KEY_SHORTCUTS_ARRAY = "shortcuts_array";
+
+    /**
+     * Request for keyboard shortcuts to be retrieved asynchronously.
+     *
+     * @param receiver The callback to be triggered when the result is ready.
+     *
+     * @hide
+     */
+    public void requestAppKeyboardShortcuts(final KeyboardShortcutsReceiver receiver);
+
     public static class LayoutParams extends ViewGroup.LayoutParams implements Parcelable {
         /**
          * X position for this window.  With the default gravity it is ignored.
diff --git a/core/java/android/view/WindowManagerImpl.java b/core/java/android/view/WindowManagerImpl.java
index 98e9f54c13f9..6e11671016b4 100644
--- a/core/java/android/view/WindowManagerImpl.java
+++ b/core/java/android/view/WindowManagerImpl.java
@@ -17,7 +17,15 @@
 package android.view;
 
 import android.annotation.NonNull;
+import android.content.Context;
+import android.os.Bundle;
 import android.os.IBinder;
+import android.os.RemoteException;
+
+import com.android.internal.os.IResultReceiver;
+import com.android.internal.R;
+
+import java.util.List;
 
 /**
  * Provides low-level communication with the system window manager for
@@ -117,6 +125,23 @@ public final class WindowManagerImpl implements WindowManager {
     }
 
     @Override
+    public void requestAppKeyboardShortcuts(final KeyboardShortcutsReceiver receiver) {
+        IResultReceiver resultReceiver = new IResultReceiver.Stub() {
+            @Override
+            public void send(int resultCode, Bundle resultData) throws RemoteException {
+                List<KeyboardShortcutGroup> result =
+                        resultData.getParcelableArrayList(PARCEL_KEY_SHORTCUTS_ARRAY);
+                receiver.onKeyboardShortcutsReceived(result);
+            }
+        };
+        try {
+            WindowManagerGlobal.getWindowManagerService()
+                .requestAppKeyboardShortcuts(resultReceiver);
+        } catch (RemoteException e) {
+        }
+    }
+
+    @Override
     public Display getDefaultDisplay() {
         return mDisplay;
     }
diff --git a/core/java/com/android/internal/policy/DecorView.java b/core/java/com/android/internal/policy/DecorView.java
index cea9867b8d88..7ae0efb6030b 100644
--- a/core/java/com/android/internal/policy/DecorView.java
+++ b/core/java/com/android/internal/policy/DecorView.java
@@ -17,6 +17,7 @@
 package com.android.internal.policy;
 
 import com.android.internal.R;
+import com.android.internal.policy.PhoneWindow.PanelFeatureState;
 import com.android.internal.policy.PhoneWindow.PhoneWindowMenuCallback;
 import com.android.internal.view.FloatingActionMode;
 import com.android.internal.view.RootViewSurfaceTaker;
@@ -28,6 +29,8 @@ import com.android.internal.widget.BackgroundFallback;
 import com.android.internal.widget.DecorCaptionView;
 import com.android.internal.widget.FloatingToolbar;
 
+import java.util.List;
+
 import android.animation.Animator;
 import android.animation.ObjectAnimator;
 import android.app.ActivityManager;
@@ -48,6 +51,7 @@ import android.view.ContextThemeWrapper;
 import android.view.Gravity;
 import android.view.InputQueue;
 import android.view.KeyEvent;
+import android.view.KeyboardShortcutGroup;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuItem;
@@ -85,6 +89,7 @@ import static android.view.WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATIO
 import static android.view.WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS;
 import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION;
 import static android.view.WindowManager.LayoutParams.TYPE_BASE_APPLICATION;
+import static com.android.internal.policy.PhoneWindow.FEATURE_OPTIONS_PANEL;
 
 /** @hide */
 public class DecorView extends FrameLayout implements RootViewSurfaceTaker, WindowCallbacks {
@@ -1956,6 +1961,21 @@ public class DecorView extends FrameLayout implements RootViewSurfaceTaker, Wind
                 res.getConfiguration().screenWidthDp, res.getDisplayMetrics());
     }
 
+    /**
+     * @hide
+     */
+    @Override
+    public void requestKeyboardShortcuts(List<KeyboardShortcutGroup> list) {
+        final PanelFeatureState st = mWindow.getPanelState(FEATURE_OPTIONS_PANEL, false);
+        if (!mWindow.isDestroyed() && st != null && mWindow.getCallback() != null) {
+            try {
+                mWindow.getCallback().onProvideKeyboardShortcuts(list, st.menu);
+            } catch (AbstractMethodError e) {
+                // We run into this if the app is using supportlib.
+            }
+        }
+    }
+
     private static class ColorViewState {
         View view = null;
         int targetVisibility = View.INVISIBLE;
diff --git a/core/java/com/android/internal/view/BaseIWindow.java b/core/java/com/android/internal/view/BaseIWindow.java
index 8699843eb83b..aa4b564c3800 100644
--- a/core/java/com/android/internal/view/BaseIWindow.java
+++ b/core/java/com/android/internal/view/BaseIWindow.java
@@ -25,6 +25,8 @@ import android.view.DragEvent;
 import android.view.IWindow;
 import android.view.IWindowSession;
 
+import com.android.internal.os.IResultReceiver;
+
 public class BaseIWindow extends IWindow.Stub {
     private IWindowSession mSession;
     public int mSeq;
@@ -103,4 +105,8 @@ public class BaseIWindow extends IWindow.Stub {
     @Override
     public void dispatchWindowShown() {
     }
+
+    @Override
+    public void requestAppKeyboardShortcuts(IResultReceiver receiver) {
+    }
 }
diff --git a/core/tests/coretests/src/com/android/internal/policy/PhoneWindowActionModeTest.java b/core/tests/coretests/src/com/android/internal/policy/PhoneWindowActionModeTest.java
index 48590c1ec463..1966313a41f0 100644
--- a/core/tests/coretests/src/com/android/internal/policy/PhoneWindowActionModeTest.java
+++ b/core/tests/coretests/src/com/android/internal/policy/PhoneWindowActionModeTest.java
@@ -22,6 +22,7 @@ import android.test.suitebuilder.annotation.SmallTest;
 import android.view.ActionMode;
 import android.view.ActionMode.Callback;
 import android.view.KeyEvent;
+import android.view.KeyboardShortcutGroup;
 import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;
@@ -32,6 +33,8 @@ import android.view.Window;
 import android.view.WindowManager.LayoutParams;
 import android.view.accessibility.AccessibilityEvent;
 
+import java.util.List;
+
 /**
  * Tests {@link PhoneWindow}'s {@link ActionMode} related methods.
  */
@@ -288,6 +291,9 @@ public final class PhoneWindowActionModeTest
 
         @Override
         public void onActionModeFinished(ActionMode mode) {}
+
+        @Override
+        public void onProvideKeyboardShortcuts(List<KeyboardShortcutGroup> data, Menu menu) {}
     }
 
     private static final class MockActionModeCallback implements ActionMode.Callback {
diff --git a/packages/SystemUI/res/values/strings.xml b/packages/SystemUI/res/values/strings.xml
index 4136c110c649..0e4f98f9c715 100644
--- a/packages/SystemUI/res/values/strings.xml
+++ b/packages/SystemUI/res/values/strings.xml
@@ -1281,4 +1281,13 @@
     <!-- Summary of switch for battery saver [CHAR LIMIT=NONE] -->
     <string name="battery_detail_switch_summary">Reduces performance and background data</string>
 
+    <!-- User visible title for the system-wide keyboard shortcuts list. -->
+    <string name="keyboard_shortcut_group_system">System</string>
+    <!-- User visible title for the keyboard shortcut that takes the user to the home screen. -->
+    <string name="keyboard_shortcut_group_system_home">Home</string>
+    <!-- User visible title for the the keyboard shortcut that takes the user to the recents screen. -->
+    <string name="keyboard_shortcut_group_system_recents">Recents</string>
+    <!-- User visible title for the the keyboard shortcut that triggers the back action. -->
+    <string name="keyboard_shortcut_group_system_back">Back</string>
+
 </resources>
diff --git a/packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java b/packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java
index 3406da94e53c..f9e825aaf064 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java
@@ -60,6 +60,7 @@ import android.util.Pair;
 import android.view.Display;
 import android.view.IDockedStackListener;
 import android.view.WindowManager;
+import android.view.WindowManager.KeyboardShortcutsReceiver;
 import android.view.WindowManagerGlobal;
 import android.view.accessibility.AccessibilityManager;
 import com.android.internal.app.AssistUtils;
@@ -915,4 +916,8 @@ public class SystemServicesProxy {
             e.printStackTrace();
         }
     }
+
+    public void requestKeyboardShortcuts(Context context, KeyboardShortcutsReceiver receiver) {
+        mWm.requestAppKeyboardShortcuts(receiver);
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/KeyboardShortcuts.java b/packages/SystemUI/src/com/android/systemui/statusbar/KeyboardShortcuts.java
index 3e0ea90f7694..b36fb7e65f7e 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/KeyboardShortcuts.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/KeyboardShortcuts.java
@@ -20,50 +20,92 @@ import android.app.AlertDialog;
 import android.app.Dialog;
 import android.content.Context;
 import android.graphics.drawable.ColorDrawable;
-import android.view.Gravity;
+import android.os.Handler;
+import android.util.Log;
+import android.view.KeyEvent;
+import android.view.KeyboardShortcutGroup;
+import android.view.KeyboardShortcutInfo;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.Window;
 import android.view.WindowManager;
+import android.view.WindowManager.KeyboardShortcutsReceiver;
 
 import com.android.systemui.R;
+import com.android.systemui.recents.Recents;
+
+import java.util.List;
+
+import static android.content.Context.LAYOUT_INFLATER_SERVICE;
+import static android.graphics.Color.TRANSPARENT;
+import static android.view.Gravity.TOP;
+import static android.view.WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG;
 
 /**
  * Contains functionality for handling keyboard shortcuts.
  */
 public class KeyboardShortcuts {
+    private static final String TAG = "KeyboardShortcuts";
+
     private Dialog mKeyboardShortcutsDialog;
 
     public KeyboardShortcuts() {}
 
-    public void toggleKeyboardShortcuts(Context context) {
+    public void toggleKeyboardShortcuts(final Context context) {
         if (mKeyboardShortcutsDialog == null) {
-            // Create dialog.
-            AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(context);
-            LayoutInflater inflater = (LayoutInflater) context.getSystemService(
-                    Context.LAYOUT_INFLATER_SERVICE);
-            final View keyboardShortcutsView = inflater.inflate(
-                    R.layout.keyboard_shortcuts_view, null);
-
-            populateKeyboardShortcuts(keyboardShortcutsView.findViewById(
-                    R.id.keyboard_shortcuts_wrapper));
-            dialogBuilder.setView(keyboardShortcutsView);
-            mKeyboardShortcutsDialog = dialogBuilder.create();
-            mKeyboardShortcutsDialog.setCanceledOnTouchOutside(true);
-
-            // Setup window.
-            Window keyboardShortcutsWindow = mKeyboardShortcutsDialog.getWindow();
-            keyboardShortcutsWindow.setType(
-                    WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG);
-            keyboardShortcutsWindow.setBackgroundDrawable(
-                    new ColorDrawable(android.graphics.Color.TRANSPARENT));
-            keyboardShortcutsWindow.setGravity(Gravity.TOP);
-            mKeyboardShortcutsDialog.show();
+            Recents.getSystemServices().requestKeyboardShortcuts(context,
+                new KeyboardShortcutsReceiver() {
+                    @Override
+                    public void onKeyboardShortcutsReceived(
+                            final List<KeyboardShortcutGroup> result) {
+                        KeyboardShortcutGroup systemGroup = new KeyboardShortcutGroup(
+                            context.getString(R.string.keyboard_shortcut_group_system));
+                        systemGroup.addItem(new KeyboardShortcutInfo(
+                            context.getString(R.string.keyboard_shortcut_group_system_home),
+                            '\u2386', KeyEvent.META_META_ON));
+                        systemGroup.addItem(new KeyboardShortcutInfo(
+                            context.getString(R.string.keyboard_shortcut_group_system_back),
+                            '\u007F', KeyEvent.META_META_ON));
+                        systemGroup.addItem(new KeyboardShortcutInfo(
+                            context.getString(R.string.keyboard_shortcut_group_system_recents),
+                            '\u0009', KeyEvent.META_ALT_ON));
+                        result.add(systemGroup);
+                        Log.i(TAG, "Keyboard shortcuts received: " + String.valueOf(result));
+                        showKeyboardShortcutsDialog(context);
+                    }
+                });
         } else {
             dismissKeyboardShortcutsDialog();
         }
     }
 
+    private void showKeyboardShortcutsDialog(Context context) {
+        // Create dialog.
+        AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(context);
+        LayoutInflater inflater = (LayoutInflater) context.getSystemService(
+                LAYOUT_INFLATER_SERVICE);
+        final View keyboardShortcutsView = inflater.inflate(
+                R.layout.keyboard_shortcuts_view, null);
+
+        populateKeyboardShortcuts(keyboardShortcutsView.findViewById(
+                R.id.keyboard_shortcuts_wrapper));
+        dialogBuilder.setView(keyboardShortcutsView);
+        mKeyboardShortcutsDialog = dialogBuilder.create();
+        mKeyboardShortcutsDialog.setCanceledOnTouchOutside(true);
+
+        // Setup window.
+        Window keyboardShortcutsWindow = mKeyboardShortcutsDialog.getWindow();
+        keyboardShortcutsWindow.setType(TYPE_SYSTEM_DIALOG);
+        keyboardShortcutsWindow.setBackgroundDrawable(
+                new ColorDrawable(TRANSPARENT));
+        keyboardShortcutsWindow.setGravity(TOP);
+        keyboardShortcutsView.post(new Runnable() {
+            public void run() {
+                mKeyboardShortcutsDialog.show();
+            }
+        });
+    }
+
     public void dismissKeyboardShortcutsDialog() {
         if (mKeyboardShortcutsDialog != null) {
             mKeyboardShortcutsDialog.dismiss();
diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index 685df25910d6..7d142eca0bb4 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -119,6 +119,7 @@ import android.widget.Toast;
 
 import com.android.internal.R;
 import com.android.internal.app.IAssistScreenshotReceiver;
+import com.android.internal.os.IResultReceiver;
 import com.android.internal.util.FastPrintWriter;
 import com.android.internal.view.IInputContext;
 import com.android.internal.view.IInputMethodClient;
@@ -10269,6 +10270,14 @@ public class WindowManagerService extends IWindowManager.Stub
                 listener);
     }
 
+    @Override
+    public void requestAppKeyboardShortcuts(IResultReceiver receiver) {
+        try {
+            getFocusedWindow().mClient.requestAppKeyboardShortcuts(receiver);
+        } catch (RemoteException e) {
+        }
+    }
+
     private final class LocalService extends WindowManagerInternal {
         @Override
         public void requestTraversalFromDisplayManager() {