update the Hand's position on mouse-down - avoid triggering at the origin point

HISTORY.md

@@ -4,6 +4,7 @@
 
 ### 2020-07-20
 * objects: fixed a list-watcher direct-editing offset bug
+* morphic: update the Hand's position on mouse-down - avoid triggering at the origin point
 
 ### 2020-07-19
 * blocks: blocks-fade-out support for label arrows (under construction)

snap.html

@@ -4,7 +4,7 @@
         <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
         <title>Snap! Build Your Own Blocks 6.0.1 - dev -</title>
         <link rel="shortcut icon" href="src/favicon.ico">
-        <script src="src/morphic.js?version=2020-07-16"></script>
+        <script src="src/morphic.js?version=2020-07-20"></script>
         <script src="src/symbols.js?version=2020-07-01"></script>
         <script src="src/widgets.js?version=2020-07-13"></script>
         <script src="src/blocks.js?version=2020-07-20"></script>

src/morphic.js

@@ -1278,7 +1278,7 @@
 
 /*global window, HTMLCanvasElement, FileReader, Audio, FileList, Map*/
 
-var morphicVersion = '2020-July-17';
+var morphicVersion = '2020-July-20';
 var modules = {}; // keep track of additional loaded modules
 var useBlurredShadows = true;
 
@@ -11279,8 +11279,16 @@ HandMorph.prototype.drop = function () {
 */
 
 HandMorph.prototype.processMouseDown = function (event) {
-    var morph, actualClick;
+    var morph, actualClick,
+        posInDocument = getDocumentPositionOf(this.world.worldCanvas);
 
+    // update my position, in case I've just been initialized
+    this.setPosition(new Point(
+        event.pageX - posInDocument.x,
+        event.pageY - posInDocument.y
+    ));
+
+    // process the actual event
     this.destroyTemporaries();
     this.contextMenuEnabled = true;
     this.morphToGrab = null;