🏡 Add a ChromeHomeNewTabPage

chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java

 // Copyright 2015 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;
 
 import android.annotation.SuppressLint;
 import android.annotation.TargetApi;
 import android.app.Activity;
 import android.app.SearchManager;
@@ skipping 227 matching lines @@
     private InsetObserverView mInsetObserverView;
     private ContextualSearchManager mContextualSearchManager;
     private ReaderModeManager mReaderModeManager;
     private SnackbarManager mSnackbarManager;
     private DataUseSnackbarController mDataUseSnackbarController;
     private DataReductionPromoSnackbarController mDataReductionPromoSnackbarController;
     private AppMenuPropertiesDelegate mAppMenuPropertiesDelegate;
     private AppMenuHandler mAppMenuHandler;
     private ToolbarManager mToolbarManager;
     private BottomSheet mBottomSheet;
+    private FadingBackgroundView mFadingBackgroundView;
 
     // Time in ms that it took took us to inflate the initial layout
     private long mInflateInitialLayoutDurationMs;
 
     private int mScreenWidthDp;
     private Runnable mRecordMultiWindowModeScreenWidthRunnable;
 
     private AssistStatusHandler mAssistStatusHandler;
 
     // A set of views obscuring all tabs. When this set is nonempty,
@@ skipping 85 matching lines @@
             getFullscreenManager().initialize(
                     (ControlContainer) findViewById(R.id.control_container),
                     getTabModelSelector(),
                     getControlContainerHeightResource());
         }
 
         if (mBottomSheet != null) {
             mBottomSheet.setTabModelSelector(mTabModelSelector);
             mBottomSheet.setFullscreenManager(mFullscreenManager);
 
-            FadingBackgroundView fadingView =
-                    (FadingBackgroundView) findViewById(R.id.fading_focus_target);
-            mBottomSheet.addObserver(fadingView);
-            fadingView.addObserver(mBottomSheet);
+            mFadingBackgroundView = (FadingBackgroundView) findViewById(R.id.fading_focus_target);
+            mBottomSheet.addObserver(mFadingBackgroundView);
+            mFadingBackgroundView.addObserver(mBottomSheet);
         }
         ((BottomContainer) findViewById(R.id.bottom_container)).initialize(mFullscreenManager);
     }
 
     @Override
     protected View getViewToBeDrawnBeforeInitializingNative() {
         View controlContainer = findViewById(R.id.control_container);
         return controlContainer != null ? controlContainer
                 : super.getViewToBeDrawnBeforeInitializingNative();
     }
@@ skipping 241 matching lines @@
 
     /**
      * Get the Chrome Home bottom sheet if it exists.
      * @return The bottom sheet or null.
      */
     public BottomSheet getBottomSheet() {
         return mBottomSheet;
     }
 
     /**
+     * @return The View used to obscure content and bring focus to a foreground view.
+     */
+    public FadingBackgroundView getFadingBackgroundView() {
+        return mFadingBackgroundView;
+    }
+
+    /**
      * @return {@link AppMenuPropertiesDelegate} instance that the {@link AppMenuHandler}
      *         should be using in this activity.
      */
     protected AppMenuPropertiesDelegate createAppMenuPropertiesDelegate() {
         return new AppMenuPropertiesDelegate(this);
     }
 
     /**
      * @return The assist handler for this activity.
      */
@@ skipping 1392 matching lines @@
                 "Android.MultiWindowMode.IsTabletScreenWidthBelow600",
                 mScreenWidthDp < DeviceFormFactor.MINIMUM_TABLET_WIDTH_DP);
 
         if (mScreenWidthDp < DeviceFormFactor.MINIMUM_TABLET_WIDTH_DP) {
             RecordHistogram.recordLinearCountHistogram(
                     "Android.MultiWindowMode.TabletScreenWidth", mScreenWidthDp, 1,
                     DeviceFormFactor.MINIMUM_TABLET_WIDTH_DP, 50);
         }
     }
 }