From a3644638aaf0418598196a870204e0b632a4c8ad Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <thomas@roundcube.net>
Date: Fri, 17 Apr 2015 06:28:40 -0400
Subject: [PATCH] Allow preference sections to define CSS class names

---
 program/js/treelist.js |   19 +++++++++++++++----
 1 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/program/js/treelist.js b/program/js/treelist.js
index c034f77..9e6baab 100644
--- a/program/js/treelist.js
+++ b/program/js/treelist.js
@@ -248,6 +248,11 @@
    */
   function select(id)
   {
+    // allow subscribes to prevent selection change
+    if (me.triggerEvent('beforeselect', indexbyid[id]) === false) {
+      return;
+    }
+
     if (selection) {
       id2dom(selection, true).removeClass('selected').removeAttr('aria-selected');
       if (search_active)
@@ -329,7 +334,7 @@
 
       // re-render the entire subtree
       if (parent_node.children.length == 1) {
-        render_node(parent_node, parent_li.parent(), parent_li);
+        render_node(parent_node, null, parent_li);
         li = id2dom(node.id);
       }
       else {
@@ -360,6 +365,12 @@
     }
 
     indexbyid[node.id] = node;
+
+    // set new reference to node.html after insert
+    // will otherwise vanish in Firefox 3.6
+    if (typeof node.html == 'object') {
+        indexbyid[node.id].html = id2dom(node.id, true).children();
+    }
 
     if (sort) {
       resort_node(li, typeof sort == 'string' ? '[class~="' + sort + '"]' : '');
@@ -911,9 +922,9 @@
    * When dragging starts, compute absolute bounding boxes of the list and it's items
    * for faster comparisons while mouse is moving
    */
-  function drag_start()
+  function drag_start(force)
   {
-    if (drag_active)
+    if (!force && drag_active)
       return;
 
     drag_active = true;
@@ -1054,7 +1065,7 @@
           autoexpand_item = id;
           autoexpand_timer = setTimeout(function() {
             expand(autoexpand_item);
-            drag_start();  // re-calculate item coords
+            drag_start(true);  // re-calculate item coords
             autoexpand_item = null;
             if (ui_droppable)
               $.ui.ddmanager.prepareOffsets($.ui.ddmanager.current, null);

--
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