src/hg/js/jquery.tablednd.js 1.2

Index: src/hg/js/jquery.tablednd.js
===================================================================
RCS file: /projects/compbio/cvsroot/kent/src/hg/js/jquery.tablednd.js,v
retrieving revision 1.1
retrieving revision 1.2
diff -b -B -U 4 -r1.1 -r1.2
--- src/hg/js/jquery.tablednd.js	15 Aug 2008 22:08:51 -0000	1.1
+++ src/hg/js/jquery.tablednd.js	20 Nov 2009 23:49:42 -0000	1.2
@@ -3,8 +3,11 @@
  * You can set up various options to control how the system will work
  * Copyright (c) Denis Howlett <denish@isocra.com>
  * Licensed like jQuery, see http://docs.jquery.com/License.
  *
+ * NOTE for Browser staff: Tim Dreszer has modified this from original:
+ *      dragStartIndex is returned as third param in onDrop() callback.
+ *
  * Configuration options:
  * 
  * onDragStyle
  *     This is the style that is assigned to the row during drag. There are limitations to the styles that can be
@@ -22,9 +25,9 @@
  *     stylesheet.
  * onDrop
  *     Pass a function that will be called when the row is dropped. The function takes 2 parameters: the table
  *     and the row that was dropped. You can work out the new order of the rows by using
- *     table.rows.
+ *     table.rows.  NOTE: function now returns a third param: dragStartIndex (of row that was dragged)
  * onDragStart
  *     Pass a function that will be called when the user starts dragging. The function takes 2 parameters: the
  *     table and the row which the user has started to drag.
  * onAllowDrop
@@ -101,9 +104,10 @@
                 onDragStart: null,
                 scrollAmount: 5,
 				serializeRegexp: /[^\-]*$/, // The regular expression to use to trim row IDs
 				serializeParamName: null, // If you want to specify another parameter name instead of the table ID
-                dragHandle: null // If you give the name of a class here, then only Cells with this class will be draggable
+                dragHandle: null, // If you give the name of a class here, then only Cells with this class will be draggable
+                dragStartIndex : 0
             }, options || {});
             // Now make the rows draggable
             jQuery.tableDnD.makeDraggable(this);
         });
@@ -129,8 +133,9 @@
                 jQuery(this).mousedown(function(ev) {
                     jQuery.tableDnD.dragObject = this.parentNode;
                     jQuery.tableDnD.currentTable = table;
                     jQuery.tableDnD.mouseOffset = jQuery.tableDnD.getMouseOffset(this, ev);
+                    config.dragStartIndex = $(jQuery.tableDnD.dragObject).attr('rowIndex');
                     if (config.onDragStart) {
                         // Call the onDrop method if there is one
                         config.onDragStart(table, this);
                     }
@@ -148,8 +153,9 @@
 	                    if (ev.target.tagName == "TD") {
 	                        jQuery.tableDnD.dragObject = this;
 	                        jQuery.tableDnD.currentTable = table;
 	                        jQuery.tableDnD.mouseOffset = jQuery.tableDnD.getMouseOffset(this, ev);
+                            config.dragStartIndex = $(jQuery.tableDnD.dragObject).attr('rowIndex');
 	                        if (config.onDragStart) {
 	                            // Call the onDrop method if there is one
 	                            config.onDragStart(table, this);
 	                        }
@@ -331,9 +337,9 @@
 			}
             jQuery.tableDnD.dragObject   = null;
             if (config.onDrop) {
                 // Call the onDrop method if there is one
-                config.onDrop(jQuery.tableDnD.currentTable, droppedRow);
+                config.onDrop(jQuery.tableDnD.currentTable, droppedRow, config.dragStartIndex);
             }
             jQuery.tableDnD.currentTable = null; // let go of the table too
         }
     },