From 0c42353743ad99980e0b976b6be3aa8035381da0 Mon Sep 17 00:00:00 2001
From: Sam Hemelryk <sam@moodle.com>
Date: Thu, 29 Jul 2010 06:14:12 +0000
Subject: [PATCH] calendar MDL-23443 Attemped fix of calendar rendering
 problems

---
 calendar/yui/eventmanager/eventmanager.js | 45 ++++++++++++++---------
 1 file changed, 28 insertions(+), 17 deletions(-)

diff --git a/calendar/yui/eventmanager/eventmanager.js b/calendar/yui/eventmanager/eventmanager.js
index ff313e48dfe44..7ee57043f9888 100644
--- a/calendar/yui/eventmanager/eventmanager.js
+++ b/calendar/yui/eventmanager/eventmanager.js
@@ -13,34 +13,44 @@ YUI.add('moodle-calendar-eventmanager', function(Y) {
         EVENT.superclass.constructor.apply(this, arguments);
     }
     Y.extend(EVENT, Y.Base, {
+        initpanelcalled : false,
         initializer : function(config){
             var id = this.get(EVENTID), node = this.get(EVENTNODE);
             if (!node) {
                 return false;
             }
-            var td = node.ancestor('td'), constraint = td.ancestor('div'), panel;
+            var td = node.ancestor('td');
             this.publish('showevent');
             this.publish('hideevent');
-            panel = new Y.Overlay({
-                constrain : constraint,
-                align : {
-                    node : td,
-                    points:[Y.WidgetPositionAlign.TL, Y.WidgetPositionAlign.BC]
-                },
-                headerContent : Y.Node.create('<h2 class="eventtitle">'+this.get(EVENTTITLE)+'</h2>'),
-                bodyContent : Y.Node.create('<div class="eventcontent">'+this.get(EVENTCONTENT)+'</div>'),
-                visible : false,
-                id : this.get(EVENTID)+'_panel',
-                width : Math.floor(constraint.get('offsetWidth')*0.9)+"px"
-            });
-            panel.get('boundingBox').addClass('calendar-event-panel')
-            panel.render(td);
-            this.on('showevent', panel.show, panel);
-            this.on('hideevent', panel.hide, panel);
             td.on('mouseenter', this.startShow, this);
             td.on('mouseleave', this.startHide, this);
             return true;
         },
+        initPanel : function() {
+            if (!this.initpanelcalled) {
+                this.initpanelcalled = true;
+                var node = this.get(EVENTNODE),
+                    td = node.ancestor('td'),
+                    constraint = td.ancestor('div'),
+                    panel;
+                panel = new Y.Overlay({
+                    constrain : constraint,
+                    align : {
+                        node : td,
+                        points:[Y.WidgetPositionAlign.TL, Y.WidgetPositionAlign.BC]
+                    },
+                    headerContent : Y.Node.create('<h2 class="eventtitle">'+this.get(EVENTTITLE)+'</h2>'),
+                    bodyContent : Y.Node.create('<div class="eventcontent">'+this.get(EVENTCONTENT)+'</div>'),
+                    visible : false,
+                    id : this.get(EVENTID)+'_panel',
+                    width : Math.floor(constraint.get('offsetWidth')*0.9)+"px"
+                });
+                panel.render(td);
+                panel.get('boundingBox').addClass('calendar-event-panel');
+                this.on('showevent', panel.show, panel);
+                this.on('hideevent', panel.hide, panel);
+            }
+        },
         startShow : function() {
             if (this.get(SHOWTIMEOUT) !== null) {
                 this.cancelShow();
@@ -52,6 +62,7 @@ YUI.add('moodle-calendar-eventmanager', function(Y) {
             clearTimeout(this.get(SHOWTIMEOUT));
         },
         show : function() {
+            this.initPanel();
             this.fire('showevent');
         },
         startHide : function() {