Introduce ViewRoot forwarding input/view events to native

content/shell/android/java/src/org/chromium/content_shell/Shell.java

 // Copyright 2012 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.content_shell;
 
 import android.app.Activity;
 import android.content.Context;
 import android.graphics.drawable.ClipDrawable;
 import android.text.TextUtils;
@@ skipping 19 matching lines @@
 import org.chromium.content.browser.ContentVideoViewEmbedder;
 import org.chromium.content.browser.ContentView;
 import org.chromium.content.browser.ContentViewClient;
 import org.chromium.content.browser.ContentViewCore;
 import org.chromium.content.browser.ContentViewRenderView;
 import org.chromium.content_public.browser.ActionModeCallbackHelper;
 import org.chromium.content_public.browser.LoadUrlParams;
 import org.chromium.content_public.browser.NavigationController;
 import org.chromium.content_public.browser.WebContents;
 import org.chromium.ui.base.ViewAndroidDelegate;
+import org.chromium.ui.base.ViewRoot;
 import org.chromium.ui.base.WindowAndroid;
 
 /**
  * Container for the various UI components that make up a shell window.
  */
 @JNINamespace("content")
 public class Shell extends LinearLayout {
 
     private static final long COMPLETED_PROGRESS_TIMEOUT_MS = 200;
 
     private final Runnable mClearProgressRunnable = new Runnable() {
         @Override
         public void run() {
             mProgressDrawable.setLevel(0);
         }
     };
 
     private ContentViewCore mContentViewCore;
     private WebContents mWebContents;
+    private ViewRoot mViewRoot;
     private NavigationController mNavigationController;
     private ContentViewClient mContentViewClient;
     private EditText mUrlTextView;
     private ImageButton mPrevButton;
     private ImageButton mNextButton;
     private ImageButton mStopReloadButton;
 
     private ClipDrawable mProgressDrawable;
 
     private long mNativeShell;
@@ skipping 225 matching lines @@
     @CalledByNative
     private void initFromNativeTabContents(WebContents webContents) {
         Context context = getContext();
         mContentViewCore = new ContentViewCore(context, "");
         ContentView cv = ContentView.createContentView(context, mContentViewCore);
         mContentViewCore.initialize(ViewAndroidDelegate.createBasicDelegate(cv), cv,
                 webContents, mWindow);
         mContentViewCore.setActionModeCallback(defaultActionCallback());
         mContentViewCore.setContentViewClient(mContentViewClient);
         mWebContents = mContentViewCore.getWebContents();
+        mViewRoot = ViewRoot.create(mWindow);
+        mWebContents.initViewRoot(mViewRoot);
         mNavigationController = mWebContents.getNavigationController();
         if (getParent() != null) mContentViewCore.onShow();
         if (mWebContents.getUrl() != null) {
             mUrlTextView.setText(mWebContents.getUrl());
         }
         ((FrameLayout) findViewById(R.id.contentview_holder)).addView(cv,
                 new FrameLayout.LayoutParams(
                         FrameLayout.LayoutParams.MATCH_PARENT,
                         FrameLayout.LayoutParams.MATCH_PARENT));
         cv.requestFocus();
-        mContentViewRenderView.setCurrentContentViewCore(mContentViewCore);
+        mContentViewRenderView.setCurrentContent(mContentViewCore, mViewRoot);
     }
 
     /**
      * {link @ActionMode.Callback} that uses the default implementation in
      * {@link SelectionPopupController}.
      */
     private ActionMode.Callback defaultActionCallback() {
         final ActionModeCallbackHelper helper =
                 mContentViewCore.getActionModeCallbackHelper();
 
@@ skipping 32 matching lines @@
 
             @Override
             public void exitFullscreenVideo() {
                 super.exitFullscreenVideo();
                 mContentViewRenderView.setOverlayVideoMode(false);
             }
         };
     }
 
     /**
+     * @return {@link ViewRoot} instance used to forward view/input events.
+     */
+    ViewRoot getViewRoot() {
+        return mViewRoot;
+    }
+
+    /**
      * Enable/Disable navigation(Prev/Next) button if navigation is allowed/disallowed
      * in respective direction.
      * @param controlId Id of button to update
      * @param enabled enable/disable value
      */
     @CalledByNative
     private void enableUiControl(int controlId, boolean enabled) {
         if (controlId == 0) {
             mPrevButton.setEnabled(enabled);
         } else if (controlId == 1) {
@@ skipping 27 matching lines @@
                 Context.INPUT_METHOD_SERVICE);
         if (visible) {
             imm.showSoftInput(mUrlTextView, InputMethodManager.SHOW_IMPLICIT);
         } else {
             imm.hideSoftInputFromWindow(mUrlTextView.getWindowToken(), 0);
         }
     }
 
     private static native void nativeCloseShell(long shellPtr);
 }