Improve plugin_admin.js to support multiple ordered rows

1 files changed, 15 insertions, 7 deletions

diff --git a/inc/plugin_admin.js b/inc/plugin_admin.js
index 134ffb33..055ac285 100644
--- a/inc/plugin_admin.js
+++ b/inc/plugin_admin.js
@@ -22,14 +22,22 @@ function changePos(elem, toPos)
 function changeOrder(pos, move)
 {
     var newpos = parseInt(pos) + move;
-    var line = document.querySelector('[data-order="'+ pos +'"]');
-    var changeline = document.querySelector('[data-order="'+ newpos +'"]');
-    var parent = changeline.parentNode;
+    var lines = document.querySelectorAll('[data-order="'+ pos +'"]');
+    var changelines = document.querySelectorAll('[data-order="'+ newpos +'"]');
+
+    // If we go down reverse lines to preserve the rows order
+    if (move > 0) {
+        lines = [].slice.call(lines).reverse();
+    }
+
+    for (var i = 0 ; i < lines.length ; i++) {
+        var parent = changelines[0].parentNode;
+        changePos(lines[i], newpos);
+        changePos(changelines[i], parseInt(pos));
+        var changeItem = move < 0 ? changelines[0] : changelines[changelines.length - 1].nextSibling;
+        parent.insertBefore(lines[i], changeItem);
+    }
 
-    changePos(line, newpos);
-    changePos(changeline, parseInt(pos));
-    var changeItem = move < 0 ? changeline : changeline.nextSibling;
-    parent.insertBefore(line, changeItem);
 }
 
 /**