Autopresent WebVR content in CCT if it was opened by a Daydream Intent

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.ActivityManager;
 import android.app.PendingIntent;
 import android.content.BroadcastReceiver;
@@ skipping 60 matching lines @@
     private @interface EnterVRResult {}
 
     private static final int VR_NOT_AVAILABLE = 0;
     private static final int VR_CARDBOARD = 1;
     private static final int VR_DAYDREAM = 2; // Supports both Cardboard and Daydream viewer.
 
     @Retention(RetentionPolicy.SOURCE)
     @IntDef({VR_NOT_AVAILABLE, VR_CARDBOARD, VR_DAYDREAM})
     private @interface VrSupportLevel {}
 
+    private static final String DAYDREAM_VR_EXTRA = "android.intent.extra.VR_LAUNCH";
+
     // Linter and formatter disagree on how the line below should be formatted.
     /* package */
     static final String VR_ENTRY_RESULT_ACTION =
             "org.chromium.chrome.browser.vr_shell.VrEntryResult";
 
     private static final long REENTER_VR_TIMEOUT_MS = 1000;
 
     private static final int VR_SYSTEM_UI_FLAGS = View.SYSTEM_UI_FLAG_LAYOUT_STABLE
             | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
             | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN
@@ skipping 159 matching lines @@
     public static void maybeUnregisterVrEntryHook(ChromeActivity activity) {
         if (sInstance != null) return; // Will be handled in onPause.
         if (!activitySupportsVrBrowsing(activity)) return;
         VrClassesWrapper wrapper = getVrClassesWrapper();
         if (wrapper == null) return;
         VrDaydreamApi api = wrapper.createVrDaydreamApi(activity);
         if (api == null) return;
         unregisterDaydreamIntent(api);
     }
 
+    /**
+     * Whether or not the intent is a Daydream VR Intent.
+     */
+    public static boolean isDaydreamVrIntent(Intent intent) {
+        return intent.getBooleanExtra(DAYDREAM_VR_EXTRA, false);
+    }
+
     @CalledByNative
     private static VrShellDelegate getInstance() {
         Activity activity = ApplicationStatus.getLastTrackedFocusedActivity();
         if (!(activity instanceof ChromeActivity)) return null;
         return getInstance((ChromeActivity) activity);
     }
 
     private static VrShellDelegate getInstance(ChromeActivity activity) {
         if (!LibraryLoader.isInitialized()) return null;
         if (activity == null || !activitySupportsPresentation(activity)) return null;
@@ skipping 412 matching lines @@
     }
 
     @CalledByNative
     private void setListeningForWebVrActivate(boolean listening) {
         // Non-Daydream devices may not have the concept of display activate. So disable
         // mListeningForWebVrActivate for them.
         if (mVrSupportLevel != VR_DAYDREAM) return;
         mListeningForWebVrActivate = listening;
         if (listening) {
             registerDaydreamIntent(mVrDaydreamApi, mActivity);
+            if (mActivity.shouldAutoPresent()) {
+                // Dispatch a vrdisplayactivate event to trigger WebVR page calling requestPresent.
+                // This should start WebVR presentation.
+                nativeDisplayActivate(mNativeVrShellDelegate);
+            }
         } else {
             unregisterDaydreamIntent(mVrDaydreamApi);
         }
     }
 
     /**
      * Exits VR Shell, performing all necessary cleanup.
      */
     /* package */ void shutdownVr(boolean isPausing, boolean showTransition) {
         if (!mInVr) return;
@@ skipping 169 matching lines @@
     private native long nativeInit();
     private static native void nativeOnLibraryAvailable();
     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);
     private native void nativeDestroy(long nativeVrShellDelegate);
 }