Show an infobar when VR services need to be installed or updated.

chrome/android/java/src/org/chromium/chrome/browser/vr_shell/VrShellDelegate.java

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chrome.browser.vr_shell;
 
 import android.app.Activity;
 import android.app.PendingIntent;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ActivityInfo;
 import android.content.res.Configuration;
+import android.net.Uri;
 import android.os.Build;
 import android.os.Handler;
 import android.os.StrictMode;
 import android.os.SystemClock;
 import android.support.annotation.IntDef;
 import android.view.Choreographer;
 import android.view.Choreographer.FrameCallback;
 import android.view.Display;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.ViewGroup.LayoutParams;
 import android.view.WindowManager;
 import android.widget.FrameLayout;
 
 import org.chromium.base.Log;
+import org.chromium.base.PackageUtils;
 import org.chromium.base.VisibleForTesting;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
 import org.chromium.base.library_loader.LibraryLoader;
+
+import org.chromium.chrome.R;
 import org.chromium.chrome.browser.ChromeActivity;
 import org.chromium.chrome.browser.ChromeFeatureList;
 import org.chromium.chrome.browser.ChromeTabbedActivity;
+import org.chromium.chrome.browser.infobar.InfoBarIdentifier;
+import org.chromium.chrome.browser.infobar.SimpleConfirmInfoBarBuilder;
 import org.chromium.chrome.browser.multiwindow.MultiWindowUtils;
 import org.chromium.chrome.browser.tab.Tab;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.reflect.Constructor;
 import java.lang.reflect.InvocationTargetException;
 
 /**
  * Manages interactions with the VR Shell.
@@ skipping 24 matching lines @@
     // TODO(bshe): These should be replaced by string provided by NDK. Currently, it only available
     // in SDK and we don't want add dependency to SDK just to get these strings.
     private static final String DAYDREAM_CATEGORY = "com.google.intent.category.DAYDREAM";
     private static final String CARDBOARD_CATEGORY = "com.google.intent.category.CARDBOARD";
 
     private static final String MIN_SDK_VERSION_PARAM_NAME = "min_sdk_version";
 
     private static final String VR_ACTIVITY_ALIAS =
             "org.chromium.chrome.browser.VRChromeTabbedActivity";
 
+    private static final String VR_CORE_PACKAGE_ID = "com.google.vr.vrcore";
+    private static final int VR_CORE_MIN_VERSION = 160723800; // recent: 160722870,160723800

[Bernhard Bauer, 2017/02/16 12:12:51]

What does that comment mean?

[amp, 2017/02/16 18:41:35]

These were recent versions of the package.  I still need to verify which one is
the correct one to use, but thanks for reminding me to update this.

[amp, 2017/02/17 01:50:38]

Done.

+
     private static final long REENTER_VR_TIMEOUT_MS = 1000;
 
     private final ChromeTabbedActivity mActivity;
     private Intent mEnterVRIntent;
 
     @VrSupportLevel
     private int mVrSupportLevel;
 
     private final VrClassesWrapper mVrClassesWrapper;
     private VrShell mVrShell;
@@ skipping 182 matching lines @@
         if (!success && !mVrDaydreamApi.exitFromVr(EXIT_VR_RESULT, new Intent())) {
             mVrClassesWrapper.setVrModeEnabled(false);
         }
         mRequestedWebVR = false;
     }
 
     /* package */ boolean canEnterVR(Tab tab) {
         if (!LibraryLoader.isInitialized()) {
             return false;
         }
+        // TODO(amp): Figure out how this works with isVrCoreCompatible check.
+        int vrCoreVersion = PackageUtils.getPackageVersion(mActivity, VR_CORE_PACKAGE_ID);
+        if (vrCoreVersion < VR_CORE_MIN_VERSION) {
+            // Assume upgrade as most comment case.
+            String actionText =
+                    mActivity.getString(R.string.vr_services_check_infobar_update_action);
+            if (vrCoreVersion == -1) {
+                // VrCore not installed, make sure it's supported first
+                if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
+                    // Not supported
+                    return false;
+                }
+                // Supported, but not installed.  Ask user to install instead of upgrade.
+                actionText = mActivity.getString(R.string.vr_services_check_infobar_install_action);
+            }
+            SimpleConfirmInfoBarBuilder.create(tab,
+                    new SimpleConfirmInfoBarBuilder.Listener() {
+                        @Override
+                        public void onInfoBarDismissed() {}
+
+                        @Override
+                        public boolean onInfoBarButtonClicked(boolean isPrimary) {
+                            mActivity.startActivity(new Intent(Intent.ACTION_VIEW,
+                                    Uri.parse("market://details?id=" + VR_CORE_PACKAGE_ID)));
+                            return false;
+                        }
+                    },
+                    InfoBarIdentifier.VR_SERVICES_UPGRADE, R.drawable.vr_services,
+                    mActivity.getString(R.string.vr_services_check_infobar_text, actionText),
+                    actionText, null, true);
+            return false;
+        }
         // If vr isn't in the build, or we haven't initialized yet, or vr shell is not enabled and
         // this is not a web vr request, then return immediately.
         if (mVrSupportLevel == VR_NOT_AVAILABLE || mNativeVrShellDelegate == 0
                 || (!isVrShellEnabled() && !(mRequestedWebVR || mListeningForWebVrActivate))) {
             return false;
         }
         // TODO(mthiesse): When we have VR UI for opening new tabs, etc., allow VR Shell to be
         // entered without any current tabs.
         if (tab == null) {
             return false;
@@ skipping 336 matching lines @@
     }
 
     private native long nativeInit();
     private native void nativeSetPresentResult(long nativeVrShellDelegate, boolean result);
     private native void nativeDisplayActivate(long nativeVrShellDelegate);
     private native void nativeUpdateVSyncInterval(long nativeVrShellDelegate, long timebaseNanos,
             double intervalSeconds);
     private native void nativeOnPause(long nativeVrShellDelegate);
     private native void nativeOnResume(long nativeVrShellDelegate);
 }