Disable NTP URL bar while in VR on Android.

chrome/android/java/src/org/chromium/chrome/browser/vr_shell/VrShellImpl.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.annotation.SuppressLint;
 import android.graphics.Canvas;
 import android.graphics.Point;
 import android.os.StrictMode;
@@ skipping 11 matching lines @@
 
 import org.chromium.base.CommandLine;
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.VisibleForTesting;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
 import org.chromium.chrome.browser.ChromeActivity;
 import org.chromium.chrome.browser.ChromeSwitches;
 import org.chromium.chrome.browser.NativePage;
 import org.chromium.chrome.browser.UrlConstants;
+import org.chromium.chrome.browser.ntp.NewTabPage;
 import org.chromium.chrome.browser.tab.EmptyTabObserver;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.browser.tab.TabObserver;
 import org.chromium.chrome.browser.tab.TabRedirectHandler;
 import org.chromium.chrome.browser.tabmodel.EmptyTabModelSelectorObserver;
 import org.chromium.chrome.browser.tabmodel.TabModel;
 import org.chromium.chrome.browser.tabmodel.TabModel.TabLaunchType;
 import org.chromium.chrome.browser.tabmodel.TabModelSelector;
 import org.chromium.chrome.browser.tabmodel.TabModelSelectorObserver;
 import org.chromium.chrome.browser.tabmodel.TabModelSelectorTabObserver;
@@ skipping 115 matching lines @@
                 // Restore proper focus on the old CVC.
                 if (mContentViewCore != null) mContentViewCore.onWindowFocusChanged(false);
                 mContentViewCore = null;
                 if (mNativeVrShell == 0) return;
                 if (tab.isShowingSadTab()) {
                     // For now we don't support the sad tab page. crbug.com/661609.
                     forceExitVr();
                     return;
                 }
                 if (mNativePage != null) {
-                    UiUtils.removeViewFromParent(mNativePage.getView());
+                    restoreNativePageFromVR();
                     mNativePage = null;
-                    mMotionEventSynthesizer = null;
                     if (tab.getNativePage() == null) {
                         nativeRestoreContentSurface(mNativeVrShell);
                         mRenderToSurfaceLayoutParent.setVisibility(View.INVISIBLE);
                         mSurface = null;
                     }
                 }
                 if (tab.getNativePage() != null) {
                     mRenderToSurfaceLayoutParent.setVisibility(View.VISIBLE);
                     mNativePage = tab.getNativePage();
+                    initializeNativePageForVR();
                     if (mSurface == null) mSurface = nativeTakeContentSurface(mNativeVrShell);
-                    mRenderToSurfaceLayout.addView(mNativePage.getView(),
-                            new FrameLayout.LayoutParams(
-                                    LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
-                    mNativePage.getView().invalidate();
-                    mMotionEventSynthesizer =
-                            new MotionEventSynthesizer(mRenderToSurfaceLayout, VrShellImpl.this);
                 }
                 setContentCssSize(mLastContentWidth, mLastContentHeight, mLastContentDpr);
                 if (tab.getNativePage() == null && tab.getContentViewCore() != null) {
                     mContentViewCore = tab.getContentViewCore();
                     mContentViewCore.onAttachedToWindow();
                     mContentViewCore.getContainerView().requestFocus();
                     // We need the CVC to think it has Window Focus so it doesn't blur the page,
                     // even though we're drawing VR layouts over top of it.
                     mContentViewCore.onWindowFocusChanged(true);
                     nativeSwapContents(mNativeVrShell, mContentViewCore.getWebContents(), null);
@@ skipping 71 matching lines @@
             public boolean onPreDraw() {
                 if (mRenderToSurfaceLayout.isDirty()) {
                     mRenderToSurfaceLayout.invalidate();
                     if (mNativePage != null) mNativePage.getView().invalidate();
                 }
                 return true;
             }
         });
         mRenderToSurfaceLayoutParent.addView(mRenderToSurfaceLayout);
         addView(mRenderToSurfaceLayoutParent);
+        mMotionEventSynthesizer =
+                new MotionEventSynthesizer(mRenderToSurfaceLayout, VrShellImpl.this);
     }
 
     @Override
     public void initializeNative(Tab currentTab, boolean forWebVr, boolean inCct) {
         mContentVrWindowAndroid = new VrWindowAndroid(mActivity, mContentVirtualDisplay);
         mNativeVrShell = nativeInit(mDelegate, mContentVrWindowAndroid.getNativePointer(), forWebVr,
                 inCct, getGvrApi().getNativeGvrContext(), mReprojectedRendering);
 
         // Set the UI and content sizes before we load the UI.
         if (forWebVr) {
@@ skipping 58 matching lines @@
         mTab.setTabRedirectHandler(mTabRedirectHandler);
     }
 
     private void restoreTabFromVR() {
         mTab.setTabRedirectHandler(mNonVrTabRedirectHandler);
         mTab.updateWindowAndroid(mOriginalWindowAndroid);
         mOriginalWindowAndroid = null;
         mNonVrTabRedirectHandler = null;
     }
 
+    private void initializeNativePageForVR() {
+        if (mNativePage instanceof NewTabPage) {
+            ((NewTabPage) mNativePage).setUrlBarInputEnabled(false);
+        }
+        mRenderToSurfaceLayout.addView(mNativePage.getView(),
+                new FrameLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
+        mNativePage.getView().invalidate();
+        mRenderToSurfaceLayout.invalidate();
+    }
+
+    private void restoreNativePageFromVR() {
+        if (mNativePage instanceof NewTabPage) {
+            ((NewTabPage) mNativePage).setUrlBarInputEnabled(true);
+        }
+        UiUtils.removeViewFromParent(mNativePage.getView());
+    }
+
     // Exits VR, telling the user to remove their headset, and returning to Chromium.
     @CalledByNative
     public void forceExitVr() {
         mDelegate.shutdownVr(false /* isPausing */, true /* showTransition */);
     }
 
     @CalledByNative
     public void setContentCssSize(float width, float height, float dpr) {
         ThreadUtils.assertOnUiThread();
         mLastContentWidth = width;
@@ skipping 82 matching lines @@
             nativeOnPause(mNativeVrShell);
         }
     }
 
     @Override
     public void shutdown() {
         if (mNativeVrShell != 0) {
             nativeDestroy(mNativeVrShell);
             mNativeVrShell = 0;
         }
-        if (mNativePage != null) UiUtils.removeViewFromParent(mNativePage.getView());
+        if (mNativePage != null) restoreNativePageFromVR();
         mTabModelSelector.removeObserver(mTabModelSelectorObserver);
         mTabModelSelectorTabObserver.destroy();
         mTab.removeObserver(mTabObserver);
         restoreTabFromVR();
         mContentVirtualDisplay.destroy();
         super.shutdown();
     }
 
     @Override
     public void pause() {
@@ skipping 160 matching lines @@
     private native void nativeOnTabListCreated(long nativeVrShell, Tab[] mainTabs,
             Tab[] incognitoTabs);
     private native void nativeOnTabUpdated(long nativeVrShell, boolean incognito, int id,
             String title);
     private native void nativeOnTabRemoved(long nativeVrShell, boolean incognito, int id);
     private native Surface nativeTakeContentSurface(long nativeVrShell);
     private native void nativeRestoreContentSurface(long nativeVrShell);
     private native void nativeSetHistoryButtonsEnabled(
             long nativeVrShell, boolean canGoBack, boolean canGoForward);
 }