From c0037f1882dd3b669e0ac49dac272cf26435015e Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Fri, 02 May 2014 05:40:10 -0400
Subject: [PATCH] Improve rcube_find_object() performance by prefering getElementById() as this is the most common case

---
 program/js/common.js |   70 ++++++++++++++++++++++-------------
 1 files changed, 44 insertions(+), 26 deletions(-)

diff --git a/program/js/common.js b/program/js/common.js
index 28f79d5..48e8555 100644
--- a/program/js/common.js
+++ b/program/js/common.js
@@ -1,18 +1,30 @@
-/*
- +-----------------------------------------------------------------------+
- | Roundcube common js library                                           |
- |                                                                       |
- | This file is part of the Roundcube web development suite              |
- | Copyright (C) 2005-2012, The Roundcube Dev Team                       |
- |                                                                       |
- | Licensed under the GNU General Public License version 3 or            |
- | any later version with exceptions for skins & plugins.                |
- | See the README file for a full license statement.                     |
- |                                                                       |
- +-----------------------------------------------------------------------+
- | Author: Thomas Bruederli <roundcube@gmail.com>                        |
- +-----------------------------------------------------------------------+
-*/
+/**
+ * Roundcube common js library
+ *
+ * This file is part of the Roundcube Webmail client
+ *
+ * @licstart  The following is the entire license notice for the
+ * JavaScript code in this file.
+ *
+ * Copyright (c) 2005-2014, The Roundcube Dev Team
+ *
+ * The JavaScript code in this page is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GNU GPL) as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option)
+ * any later version.  The code is distributed WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU GPL for more details.
+ *
+ * As additional permission under GNU GPL version 3 section 7, you
+ * may distribute non-source (e.g., minimized or compacted) forms of
+ * that code without the copy of the GNU GPL normally required by
+ * section 4, provided you include this license notice and a URL
+ * through which recipients can access the Corresponding Source.
+ *
+ * @licend  The above is the entire license notice
+ * for the JavaScript code in this file.
+ */
 
 // Constants
 var CONTROL_KEY = 1;
@@ -212,7 +224,7 @@
     p.element = document;
 
   if (!p.object._rc_events)
-    p.object._rc_events = [];
+    p.object._rc_events = {};
 
   var key = p.event + '*' + p.method;
   if (!p.object._rc_events[key])
@@ -460,21 +472,25 @@
 function rcube_find_object(id, d)
 {
   var n, f, obj, e;
-  if(!d) d = document;
 
-  if(d.getElementsByName && (e = d.getElementsByName(id)))
+  if (!d) d = document;
+
+  if (d.getElementById)
+    if (obj = d.getElementById(id))
+      return obj;
+
+  if (!obj && d.getElementsByName && (e = d.getElementsByName(id)))
     obj = e[0];
-  if(!obj && d.getElementById)
-    obj = d.getElementById(id);
-  if(!obj && d.all)
+
+  if (!obj && d.all)
     obj = d.all[id];
 
-  if(!obj && d.images.length)
+  if (!obj && d.images.length)
     obj = d.images[id];
 
   if (!obj && d.forms.length) {
     for (f=0; f<d.forms.length; f++) {
-      if(d.forms[f].name == id)
+      if (d.forms[f].name == id)
         obj = d.forms[f];
       else if(d.forms[f].elements[id])
         obj = d.forms[f].elements[id];
@@ -482,7 +498,8 @@
   }
 
   if (!obj && d.layers) {
-    if (d.layers[id]) obj = d.layers[id];
+    if (d.layers[id])
+      obj = d.layers[id];
     for (n=0; !obj && n<d.layers.length; n++)
       obj = rcube_find_object(id, d.layers[n].document);
   }
@@ -496,8 +513,8 @@
   var mouse = rcube_event.get_mouse_pos(ev),
     pos = $(obj).offset();
 
-  return ((mouse.x >= pos.left) && (mouse.x < (pos.left + obj.offsetWidth)) &&
-    (mouse.y >= pos.top) && (mouse.y < (pos.top + obj.offsetHeight)));
+  return (mouse.x >= pos.left) && (mouse.x < (pos.left + obj.offsetWidth)) &&
+    (mouse.y >= pos.top) && (mouse.y < (pos.top + obj.offsetHeight));
 };
 
 
@@ -509,6 +526,7 @@
       (path ? "; path=" + path : "") +
       (domain ? "; domain=" + domain : "") +
       (secure ? "; secure" : "");
+
   document.cookie = curCookie;
 };
 

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