Merge changes from topic 'launch-2d-activities-vr' into oc-dev

* changes:
  Allow shell uid to access Vr APIs
  Add vr persistent mode enable/disable
  Launch 2D activities in VR mode

11 files changed, 387 insertions, 8 deletions

diff --git a/cmds/vr/Android.mk b/cmds/vr/Android.mk
new file mode 100644
index 000000000000..d0dc25a36dc8
--- /dev/null
+++ b/cmds/vr/Android.mk
@@ -0,0 +1,15 @@
+# Copyright 2017 The Android Open Source Project
+#
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := $(call all-subdir-java-files)
+LOCAL_MODULE := vr
+include $(BUILD_JAVA_LIBRARY)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := vr
+LOCAL_SRC_FILES := vr
+LOCAL_MODULE_CLASS := EXECUTABLES
+LOCAL_MODULE_TAGS := optional
+include $(BUILD_PREBUILT)
diff --git a/cmds/vr/MODULE_LICENSE_APACHE2 b/cmds/vr/MODULE_LICENSE_APACHE2
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/cmds/vr/MODULE_LICENSE_APACHE2
diff --git a/cmds/vr/NOTICE b/cmds/vr/NOTICE
new file mode 100644
index 000000000000..25f8ab95ce61
--- /dev/null
+++ b/cmds/vr/NOTICE
@@ -0,0 +1,190 @@
+
+   Copyright (c) 2017, 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.
+
+   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.
+
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
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+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
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+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
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+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
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+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
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+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
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+      designated in writing by the copyright owner as "Not a Contribution."
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+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
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+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
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+      (except as stated in this section) patent license to make, have made,
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+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
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+      the conditions stated in this License.
+
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+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
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+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+
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+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
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+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
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+   END OF TERMS AND CONDITIONS
+
diff --git a/cmds/vr/src/com/android/commands/vr/Vr.java b/cmds/vr/src/com/android/commands/vr/Vr.java
new file mode 100644
index 000000000000..3fb40fbc2ca9
--- /dev/null
+++ b/cmds/vr/src/com/android/commands/vr/Vr.java
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2017 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.commands.vr;
+
+import android.content.Context;
+import android.os.RemoteException;
+import android.os.ServiceManager;
+
+import android.service.vr.IVrManager;
+import com.android.internal.os.BaseCommand;
+
+import java.io.PrintStream;
+
+public final class Vr extends BaseCommand {
+
+    /**
+     * Command-line entry point.
+     *
+     * @param args The command-line arguments
+     */
+    public static void main(String[] args) {
+      (new Vr()).run(args);
+    }
+
+    private static final String COMMAND_SET_PERSISTENT_VR_MODE_ENABLED = "set-persistent-vr-mode-enabled";
+
+    private IVrManager mVrService;
+
+    @Override
+    public void onShowUsage(PrintStream out) {
+        out.println(
+                "usage: vr [subcommand]\n" +
+                "usage: vr set-persistent-vr-mode-enabled [true|false]\n"
+                );
+    }
+
+    @Override
+    public void onRun() throws Exception {
+        mVrService = IVrManager.Stub.asInterface(ServiceManager.getService(Context.VR_SERVICE));
+        if (mVrService == null) {
+            showError("Error: Could not access the Vr Manager. Is the system running?");
+            return;
+        }
+
+        String command = nextArgRequired();
+        switch (command) {
+            case COMMAND_SET_PERSISTENT_VR_MODE_ENABLED:
+                runSetPersistentVrModeEnabled();
+                break;
+            default:
+                throw new IllegalArgumentException ("unknown command '" + command + "'");
+        }
+    }
+
+    private void runSetPersistentVrModeEnabled() throws RemoteException {
+        String enableStr = nextArg();
+        boolean enabled = Boolean.parseBoolean(enableStr);
+        try {
+            mVrService.setPersistentVrModeEnabled(enabled);
+        } catch (RemoteException re) {
+            System.err.println("Error: Can't set persistent mode " + re);
+        }
+    }
+}
diff --git a/cmds/vr/vr b/cmds/vr/vr
new file mode 100755
index 000000000000..a279007caed4
--- /dev/null
+++ b/cmds/vr/vr
@@ -0,0 +1,6 @@
+# Script to start "vr" on the device
+#
+base=/system
+export CLASSPATH=$base/framework/vr.jar
+exec app_process $base/bin com.android.commands.vr.Vr "$@"
+
diff --git a/core/java/android/app/ActivityManagerInternal.java b/core/java/android/app/ActivityManagerInternal.java
index dbcdecc168c7..65cb5f492285 100644
--- a/core/java/android/app/ActivityManagerInternal.java
+++ b/core/java/android/app/ActivityManagerInternal.java
@@ -241,4 +241,11 @@ public abstract class ActivityManagerInternal {
      * {@param procStateSeq}.
      */
     public abstract void notifyNetworkPolicyRulesUpdated(int uid, long procStateSeq);
+
+    /**
+     * Called after virtual display Id is updated by
+     * {@link com.android.server.vr.CompatibilityDisplay} with a specific
+     * {@param compatibilityDisplayId}.
+     */
+    public abstract void setVrCompatibilityDisplayId(int vrCompatibilityDisplayId);
 }
diff --git a/packages/Shell/AndroidManifest.xml b/packages/Shell/AndroidManifest.xml
index 2519e029dbd9..1099aa24d720 100644
--- a/packages/Shell/AndroidManifest.xml
+++ b/packages/Shell/AndroidManifest.xml
@@ -123,6 +123,8 @@
     <uses-permission android:name="android.permission.WAKE_LOCK" />
     <!-- Permission needed to enable/disable overlays -->
     <uses-permission android:name="android.permission.CHANGE_OVERLAY_PACKAGES" />
+    <!-- Permission needed to access privileged VR APIs -->
+    <uses-permission android:name="android.permission.RESTRICTED_VR_ACCESS" />
 
     <application android:label="@string/app_label"
                  android:defaultToDeviceProtectedStorage="true"
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 0cf0b3f554c9..81d0a7cd30ac 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -59,6 +59,7 @@ import static android.provider.Settings.Global.WAIT_FOR_DEBUGGER;
 import static android.provider.Settings.System.FONT_SCALE;
 import static android.service.voice.VoiceInteractionSession.SHOW_SOURCE_APPLICATION;
 import static android.view.Display.DEFAULT_DISPLAY;
+import static android.view.Display.INVALID_DISPLAY;
 import static com.android.internal.util.XmlUtils.readBooleanAttribute;
 import static com.android.internal.util.XmlUtils.readIntAttribute;
 import static com.android.internal.util.XmlUtils.readLongAttribute;
@@ -691,6 +692,9 @@ public class ActivityManagerService extends IActivityManager.Stub
         }
     };
 
+    // VR Compatibility Display Id.
+    int mVrCompatibilityDisplayId = INVALID_DISPLAY;
+
     // Whether we should use SCHED_FIFO for UI and RenderThreads.
     private boolean mUseFifoUiScheduling = false;
 
@@ -23566,6 +23570,22 @@ public class ActivityManagerService extends IActivityManager.Stub
                 }
             }
         }
+
+        /**
+         * Called after virtual display Id is updated by
+         * {@link com.android.server.vr.CompatibilityDisplay} with a specific
+         * {@param vrCompatibilityDisplayId}.
+         */
+        @Override
+        public void setVrCompatibilityDisplayId(int vrCompatibilityDisplayId) {
+            if (DEBUG_STACK) {
+                Slog.d(TAG, "setVrCompatibilityDisplayId called for: " +
+                        vrCompatibilityDisplayId);
+            }
+            synchronized (ActivityManagerService.this) {
+                mVrCompatibilityDisplayId = vrCompatibilityDisplayId;
+            }
+        }
     }
 
     /**
diff --git a/services/core/java/com/android/server/am/ActivityStarter.java b/services/core/java/com/android/server/am/ActivityStarter.java
index e9b3e8d9a196..18e74080490d 100644
--- a/services/core/java/com/android/server/am/ActivityStarter.java
+++ b/services/core/java/com/android/server/am/ActivityStarter.java
@@ -125,8 +125,10 @@ import android.view.Display;
 
 import com.android.internal.app.HeavyWeightSwitcherActivity;
 import com.android.internal.app.IVoiceInteractor;
+import com.android.server.LocalServices;
 import com.android.server.am.ActivityStackSupervisor.PendingActivityLaunch;
 import com.android.server.pm.InstantAppResolver;
+import com.android.server.vr.VrManagerInternal;
 import com.android.server.wm.WindowManagerService;
 
 import java.util.ArrayList;
@@ -192,6 +194,8 @@ class ActivityStarter {
     private IVoiceInteractionSession mVoiceSession;
     private IVoiceInteractor mVoiceInteractor;
 
+    private boolean mUsingVrCompatibilityDisplay;
+
     private void reset() {
         mStartActivity = null;
         mIntent = null;
@@ -229,12 +233,15 @@ class ActivityStarter {
 
         mVoiceSession = null;
         mVoiceInteractor = null;
+
+        mUsingVrCompatibilityDisplay = false;
     }
 
     ActivityStarter(ActivityManagerService service, ActivityStackSupervisor supervisor) {
         mService = service;
         mSupervisor = supervisor;
         mInterceptor = new ActivityStartInterceptor(mService, mSupervisor);
+        mUsingVrCompatibilityDisplay = false;
     }
 
     final int startActivityLocked(IApplicationThread caller, Intent intent, Intent ephemeralIntent,
@@ -1208,10 +1215,7 @@ class ActivityStarter {
         mVoiceSession = voiceSession;
         mVoiceInteractor = voiceInteractor;
 
-        mSourceDisplayId = sourceRecord != null ? sourceRecord.getDisplayId() : INVALID_DISPLAY;
-        if (mSourceDisplayId == INVALID_DISPLAY) {
-            mSourceDisplayId = DEFAULT_DISPLAY;
-        }
+        mSourceDisplayId = getSourceDisplayId(mSourceRecord, mStartActivity);
 
         mLaunchBounds = getOverrideBounds(r, options, inTask);
 
@@ -1466,6 +1470,36 @@ class ActivityStarter {
     }
 
     /**
+     * Returns the ID of the display to use for a new activity. If the source activity has
+     * a explicit display ID set, use that to launch the activity. If not and the device is in VR
+     * mode, then return the Vr mode's virtual display ID.
+     */
+    private int getSourceDisplayId(ActivityRecord sourceRecord, ActivityRecord startingActivity) {
+        int displayId = sourceRecord != null ? sourceRecord.getDisplayId() : INVALID_DISPLAY;
+        // If the activity has a displayId set explicitly, launch it on the same displayId.
+        if (displayId != INVALID_DISPLAY) {
+            return displayId;
+        }
+
+        // Check if the Activity is a VR activity. If so, the activity should be launched in
+        // main display.
+        if (startingActivity != null && startingActivity.requestedVrComponent != null) {
+            return DEFAULT_DISPLAY;
+        }
+
+        // Get the virtual display id from ActivityManagerService.
+        displayId = mService.mVrCompatibilityDisplayId;
+        if (displayId != INVALID_DISPLAY) {
+            if (DEBUG_STACK) {
+                Slog.d(TAG, "getSourceDisplayId :" + displayId);
+            }
+            mUsingVrCompatibilityDisplay = true;
+            return displayId;
+        }
+        return DEFAULT_DISPLAY;
+    }
+
+    /**
      * Figure out which task and activity to bring to front when we have found an existing matching
      * activity record in history. May also clear the task if needed.
      * @param intentActivity Existing matching activity.
@@ -2073,8 +2107,18 @@ class ActivityStarter {
             return mSupervisor.getValidLaunchStackOnDisplay(launchDisplayId, r);
         }
 
-        if ((launchFlags & FLAG_ACTIVITY_LAUNCH_ADJACENT) == 0
-                || mSourceDisplayId != DEFAULT_DISPLAY) {
+        // If we are using Vr compatibility display, find the virtual display stack.
+        if (mUsingVrCompatibilityDisplay) {
+            ActivityStack as = mSupervisor.getValidLaunchStackOnDisplay(mSourceDisplayId, r);
+            if (DEBUG_STACK) {
+                Slog.v(TAG, "Launch stack for app: " + r.toString() +
+                    ", on virtual display stack:" + as.toString());
+            }
+            return as;
+        }
+
+        if (((launchFlags & FLAG_ACTIVITY_LAUNCH_ADJACENT) == 0)
+                 || mSourceDisplayId != DEFAULT_DISPLAY) {
             return null;
         }
         // Otherwise handle adjacent launch.
diff --git a/services/core/java/com/android/server/vr/CompatibilityDisplay.java b/services/core/java/com/android/server/vr/CompatibilityDisplay.java
index a8d622353636..ae1d50ff1f71 100644
--- a/services/core/java/com/android/server/vr/CompatibilityDisplay.java
+++ b/services/core/java/com/android/server/vr/CompatibilityDisplay.java
@@ -2,6 +2,7 @@ package com.android.server.vr;
 
 import static android.view.Display.INVALID_DISPLAY;
 
+import android.app.ActivityManagerInternal;
 import android.app.Service;
 import android.content.BroadcastReceiver;
 import android.content.Context;
@@ -48,6 +49,7 @@ class CompatibilityDisplay {
     private final static String DEBUG_EXTRA_SURFACE =
             "com.android.server.vr.CompatibilityDisplay.EXTRA_SURFACE";
 
+    private final ActivityManagerInternal mActivityManagerInternal;
     private final DisplayManager mDisplayManager;
     private final IVrManager mVrManager;
     private final Object mVdLock = new Object();
@@ -74,8 +76,10 @@ class CompatibilityDisplay {
     private boolean mIsVrModeOverrideEnabled;
     private boolean mIsVrModeEnabled;
 
-    public CompatibilityDisplay(DisplayManager displayManager, IVrManager vrManager) {
+    public CompatibilityDisplay(DisplayManager displayManager,
+           ActivityManagerInternal activityManagerInternal, IVrManager vrManager) {
         mDisplayManager = displayManager;
+        mActivityManagerInternal = activityManagerInternal;
         mVrManager = vrManager;
     }
 
@@ -200,6 +204,15 @@ class CompatibilityDisplay {
 
             mVirtualDisplay = mDisplayManager.createVirtualDisplay("VR 2D Display", WIDTH, HEIGHT,
                     DPI, null /* Surface */, 0 /* flags */);
+
+            if (mVirtualDisplay != null) {
+                mActivityManagerInternal.setVrCompatibilityDisplayId(
+                    mVirtualDisplay.getDisplay().getDisplayId());
+            } else {
+                Log.w(TAG, "Virtual display id is null after createVirtualDisplay");
+                mActivityManagerInternal.setVrCompatibilityDisplayId(INVALID_DISPLAY);
+                return;
+            }
         }
 
         if (DEBUG) {
@@ -222,6 +235,7 @@ class CompatibilityDisplay {
                     } else {
                         Log.i(TAG, "Stopping Virtual Display");
                         synchronized (mVdLock) {
+                            mActivityManagerInternal.setVrCompatibilityDisplayId(INVALID_DISPLAY);
                             setSurfaceLocked(null); // clean up and release the surface first.
                             if (mVirtualDisplay != null) {
                                 mVirtualDisplay.release();
diff --git a/services/core/java/com/android/server/vr/VrManagerService.java b/services/core/java/com/android/server/vr/VrManagerService.java
index 731f53f37af2..324faff8e781 100644
--- a/services/core/java/com/android/server/vr/VrManagerService.java
+++ b/services/core/java/com/android/server/vr/VrManagerService.java
@@ -18,6 +18,7 @@ package com.android.server.vr;
 import static android.view.Display.INVALID_DISPLAY;
 
 import android.Manifest;
+import android.app.ActivityManagerInternal;
 import android.app.ActivityManager;
 import android.app.AppOpsManager;
 import android.app.NotificationManager;
@@ -54,6 +55,7 @@ import android.util.Slog;
 import android.util.SparseArray;
 
 import com.android.internal.R;
+import com.android.server.LocalServices;
 import com.android.server.SystemConfig;
 import com.android.server.SystemService;
 import com.android.server.utils.ManagedApplicationService.PendingEvent;
@@ -594,7 +596,8 @@ public class VrManagerService extends SystemService implements EnabledComponentC
 
             DisplayManager dm =
                     (DisplayManager) getContext().getSystemService(Context.DISPLAY_SERVICE);
-            mCompatibilityDisplay = new CompatibilityDisplay(dm, mVrManager);
+            ActivityManagerInternal ami = LocalServices.getService(ActivityManagerInternal.class);
+            mCompatibilityDisplay = new CompatibilityDisplay(dm, ami, mVrManager);
             mCompatibilityDisplay.init(getContext());
         } else if (phase == SystemService.PHASE_THIRD_PARTY_APPS_CAN_START) {
             synchronized (mLock) {