Add vr persistent mode enable/disable

Persistent vr mode toggle control is needed sometimes from command line.
This also adds the infrastructure for future vr commands.

Bug: 36071574
Test: adb shell vr set-persistent-vr-mode-enabled true
      adb shell dumpsys vrmanager
      >> Persistent VR mode is currently: enabled
      adb shell vr set-persistent-vr-mode-enabled false
      adb shell dumpsys vrmanager
      >> Persistent VR mode is currently: disabled

Change-Id: I47a858e0696a907e746d50e2c6ca3d18197864a7
Signed-off-by: Karthik Ravi Shankar <karthikrs@google.com>

1 files changed, 78 insertions, 0 deletions

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);
+        }
+    }
+}