Fix context menu size and scrolling issues

app/src/common/shared/org/mozilla/vrbrowser/ui/views/ContextMenu.java

@@ -11,6 +11,8 @@
 import android.widget.FrameLayout;
 
 import androidx.databinding.DataBindingUtil;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
 
 import org.mozilla.vrbrowser.R;
 import org.mozilla.vrbrowser.databinding.ContextMenuBinding;
@@ -47,6 +49,12 @@ private void initialize(Context aContext) {
         mBinding = DataBindingUtil.inflate(inflater, R.layout.context_menu, this, true);
         mContextMenuAdapter = new ContextMenuAdapter(mContextMenuClickCallback);
         mBinding.contextMenuList.setAdapter(mContextMenuAdapter);
+        mBinding.contextMenuList.setLayoutManager(new LinearLayoutManager(getContext()) {
+            @Override
+            public boolean canScrollVertically() {
+                return false;
+            }
+        });
         mBinding.executePendingBindings();
     }
 

app/src/common/shared/org/mozilla/vrbrowser/ui/widgets/dialogs/ContextMenuWidget.java

@@ -58,9 +58,8 @@ private void initialize() {
     @Override
     protected void initializeWidgetPlacement(WidgetPlacement aPlacement) {
         aPlacement.visible = false;
-        aPlacement.width =  WidgetPlacement.pixelDimension(getContext(), R.dimen.browser_width_pixels)/2;
-        mMaxHeight = WidgetPlacement.dpDimension(getContext(), R.dimen.prompt_height);
-        aPlacement.height = mMaxHeight;
+        aPlacement.width =  WidgetPlacement.dpDimension(getContext(), R.dimen.context_menu_row_width);
+        aPlacement.height = WidgetPlacement.dpDimension(getContext(), R.dimen.context_menu_row_height);
         aPlacement.parentAnchorX = 0.0f;
         aPlacement.parentAnchorY = 1.0f;
         aPlacement.anchorX = 0.5f;
@@ -89,10 +88,12 @@ public void onGlobalLayout() {
                     PointF anchor = anchorForCurrentMousePosition();
                     mWidgetPlacement.anchorX = anchor.x;
                     mWidgetPlacement.anchorY = anchor.y;
+                    int paddingH = getPaddingStart() + getPaddingEnd();
+                    int paddingV = getPaddingTop() + getPaddingBottom();
                     mWidgetPlacement.translationX = mMousePos.x * WidgetPlacement.worldToWindowRatio(getContext());
                     mWidgetPlacement.translationY = -(mMousePos.y * WidgetPlacement.worldToWindowRatio(getContext()));
-                    mWidgetPlacement.width = (int)(mContextMenu.getWidth()/mWidgetPlacement.density);
-                    mWidgetPlacement.height = (int)(mContextMenu.getHeight()/mWidgetPlacement.density);
+                    mWidgetPlacement.width = (int)((mContextMenu.getWidth()+paddingH*2)/mWidgetPlacement.density);
+                    mWidgetPlacement.height = (int)((mContextMenu.getHeight()+paddingV*2)/mWidgetPlacement.density);
                     mWidgetManager.updateWidget(ContextMenuWidget.this);
                 }
             });

app/src/main/res/layout/context_menu.xml

@@ -2,7 +2,7 @@
 <layout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto">
     <LinearLayout
-        android:layout_width="wrap_content"
+        android:layout_width="@dimen/context_menu_row_width"
         android:layout_height="wrap_content"
         android:background="@drawable/context_menu_background"
         android:orientation="vertical">

app/src/main/res/layout/context_menu_item.xml

@@ -14,7 +14,7 @@
 
     <LinearLayout
         android:id="@+id/layout"
-        android:layout_width="wrap_content"
+        android:layout_width="@dimen/context_menu_row_width"
         android:layout_height="@dimen/context_menu_row_height"
         android:background="@drawable/context_menu_item_background_color"
         android:clickable="true"