From 067fbb44884ad3cd06d17e7702f31b72a230879d Mon Sep 17 00:00:00 2001
From: Rachel Fenichel <fenichel@google.com>
Date: Mon, 11 Nov 2019 15:17:26 -0800
Subject: [PATCH] Move highlightForReplacement into the path object as well.

---
 core/block_svg.js                      |  8 +-------
 core/renderers/common/i_path_object.js |  9 +++++++++
 core/renderers/common/path_object.js   | 12 ++++++++++++
 3 files changed, 22 insertions(+), 7 deletions(-)

diff --git a/core/block_svg.js b/core/block_svg.js
index 057f0d60c..cfcb3d6e6 100644
--- a/core/block_svg.js
+++ b/core/block_svg.js
@@ -1756,11 +1756,5 @@ Blockly.BlockSvg.prototype.getHeightWidth = function() {
  * @package
  */
 Blockly.BlockSvg.prototype.highlightForReplacement = function(add) {
-  if (add) {
-    Blockly.utils.dom.addClass(/** @type {!Element} */ (this.svgGroup_),
-        'blocklyReplaceable');
-  } else {
-    Blockly.utils.dom.removeClass(/** @type {!Element} */ (this.svgGroup_),
-        'blocklyReplaceable');
-  }
+  this.pathObject.updateReplacementHighlight(add);
 };
diff --git a/core/renderers/common/i_path_object.js b/core/renderers/common/i_path_object.js
index b7f6b405a..f9c7855fc 100644
--- a/core/renderers/common/i_path_object.js
+++ b/core/renderers/common/i_path_object.js
@@ -111,3 +111,12 @@ Blockly.blockRendering.IPathObject.prototype.updateInsertionMarker;
  * @package
  */
 Blockly.blockRendering.IPathObject.prototype.updateMovable;
+
+/**
+ * Add or remove styling that shows that if the dragging block is dropped, this
+ * block will be replaced.  If a shadow block, it will disappear.  Otherwise it
+ * will bump.
+ * @param {boolean} enable True if styling should be added.
+ * @package
+ */
+Blockly.blockRendering.PathObject.prototype.updateReplacementHighlight;
diff --git a/core/renderers/common/path_object.js b/core/renderers/common/path_object.js
index f7ba75373..9766b8ff9 100644
--- a/core/renderers/common/path_object.js
+++ b/core/renderers/common/path_object.js
@@ -221,3 +221,15 @@ Blockly.blockRendering.PathObject.prototype.updateMovable = function(enable) {
   this.setClass_('blocklyDraggable', enable);
 };
 
+/**
+ * Add or remove styling that shows that if the dragging block is dropped, this
+ * block will be replaced.  If a shadow block, it will disappear.  Otherwise it
+ * will bump.
+ * @param {boolean} enable True if styling should be added.
+ * @package
+ */
+Blockly.blockRendering.PathObject.prototype.updateReplacementHighlight =
+    function(enable) {
+    /* eslint-disable indent */
+  this.setClass_('blocklyReplaceable', enable);
+}; /* eslint-enable indent */