[richfaces-issues] [JBoss JIRA] (RF-13780) Random JavaScript error due to missing attribute 'richfaces.RICH_CONTAINER'

[Michael B (JIRA)]

Michael B created RF-13780:
------------------------------

             Summary: Random JavaScript error due to missing attribute 'richfaces.RICH_CONTAINER'
                 Key: RF-13780
                 URL: https://issues.jboss.org/browse/RF-13780
             Project: RichFaces
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: component, component-tree
    Affects Versions: 4.3.7
         Environment: RichFaces 4.3.7
Mojarra 2.1.29
Java 7 Update 67 (x64)
Tomcat 7.0.52 (x64) 
Firefox 31
            Reporter: Michael B


First of all: this is a bug report which may be related to RF-13776, since it also originates in the same spot of the JavaScript library of RichFaces.

Preface:
The problem is difficult to reproduce systematically, since it only seems to occur in one of n cases of loading one and the same complex xhtml (with exactly the same data from the backing bean).
The problem is described based on the rich:tree component when clicking on the expand icon of a treeNode which fires a "ToggleEvent".

Occasionally there is a JavaScript error in the last line of 
{code}
    richfaces.ui.TreeNode.emitToggleEvent = function(nodeId) {
        var node = document.getElementById(nodeId);
        if (!node) {
            return;
        }

        richfaces.$(node).__fireToggleEvent();
    };
{code}

When the problem occurs, the expression {code}richfaces.$(node){code} evaluates to 'undefined'. 

Debugging into the function when the problem occurs:
{code:title=richfaces.$|borderStyle=solid}
richfaces.$ = function(source) {
   var element = richfaces.getDomElement( source );
   if(element)
   {
      return( element[richfaces.RICH_CONTAINER] || {} )["component"]
   }
};
{code}

While the element is correctly evaluated to the treeNode/treeNodeToggle-source, the expression {code}element[richfaces.RICH_CONTAINER]{code} evaluates to 'undefined'.

Reloading the page one or more times produces correct results, where the attribute is set.

To be able to provide a reproducable example of the problem, please provide some information under which circumstances the property may not be set correctly for some components. Please also give us a hint, where to debug into the RF JavaScript code to find the spot where this property is set.



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