Operator Panel: Drag/drop functionality should work now within IE.

app/operator_panel/index.php

@@ -112,12 +112,21 @@ require_once "resources/header.php";
 
 
 //drag/drop functionality
+	var ie_workaround = false;
+
 	function drag(ev, from_ext) {
 		refresh_stop();
+		try {
 			ev.dataTransfer.setData("Call", ev.target.id);
 			ev.dataTransfer.setData("From", from_ext);
 			virtual_drag_reset();
 		}
+		catch (err) {
+			// likely internet explorer being used, do workaround
+			virtual_drag(ev.target.id, from_ext);
+			ie_workaround = true;
+		}
+	}
 
 	function allowDrop(ev, target_id) {
 		ev.preventDefault();
@@ -129,9 +138,14 @@ require_once "resources/header.php";
 
 	function drop(ev, to_ext) {
 		ev.preventDefault();
-
+		if (ie_workaround) { // potentially set on drag() function above
+			var call_id = document.getElementById('vd_call_id').value;
+			var from_ext = document.getElementById('vd_ext_from').value;
+		}
+		else {
 			var call_id = ev.dataTransfer.getData("Call");
 			var from_ext = ev.dataTransfer.getData("From");
+		}
 		var to_ext = to_ext;
 		var cmd;
 
@@ -146,6 +160,8 @@ require_once "resources/header.php";
 
 		if (cmd != '') { send_cmd('exec.php?cmd='+escape(cmd)); }
 
+		if (ie_workaround) { virtual_drag_reset(); }
+
 		refresh_start();
 	}