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From "Mark Li (JIRA)" <...@myfaces.apache.org>
Subject [jira] Commented: (MYFACES-2640) (JSF.js) Ajax Render component problem, replace with whole fragment not one element.
Date Tue, 11 May 2010 02:43:30 GMT

    [ https://issues.apache.org/jira/browse/MYFACES-2640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12866030#action_12866030
] 

Mark Li commented on MYFACES-2640:
----------------------------------

Hey Werner, 
Ok discuss this on the users mailinglist .

> (JSF.js) Ajax Render component problem, replace with whole fragment not one element.
> ------------------------------------------------------------------------------------
>
>                 Key: MYFACES-2640
>                 URL: https://issues.apache.org/jira/browse/MYFACES-2640
>             Project: MyFaces Core
>          Issue Type: Bug
>          Components: JSR-314
>    Affects Versions: 2.0.0-beta-3
>         Environment: tomcat 6.0.20 java (mac os x )
>            Reporter: Mark Li
>             Fix For: 2.0.1-SNAPSHOT
>
>   Original Estimate: 4h
>  Remaining Estimate: 4h
>
> after ajax submit, jsf.js will re-render some element depending on jsf.ajax.request({render:"
some elements "});
> but this js code will cause some problem.
> jsf.js:
> myfaces._impl._util._Utils.replaceHtmlItem = function (request, context, itemIdToReplace,
newTag, form) {
> ......
>                     var fragment = range.createContextualFragment(newTag);
>                     evalNode = item.parentNode.replaceChild(fragment, item)
> .....
> }
> sometime fragment will has more than one childNodes, or the childNode not has clientId,
but the childNode of childNode has clientId.
> this will cause html unstable.
> Please fix it.
> this is my suggestion:
> myfaces._impl._util._Utils.replaceHtmlItem = function (request, context, itemIdToReplace,
newTag, form) {
>            .............
>               Orginal:
>                     var fragment = range.createContextualFragment(newTag);
>                     evalNode = item.parentNode.replaceChild(fragment, item)
>               fix:
>                     var fragment = range.createContextualFragment(newTag);
>                     var replaceItem = myfaces._impl._util._Utils.findHtmlItemFromFragment(fragment,
itemIdToReplace);
>                     if(replaceItem == null)replaceItem = fragment;
>                     evalNode = item.parentNode.replaceChild(replaceItem, item)
>        ..................
> }
>     myfaces._impl._util._Utils.findHtmlItemFromFragment = function(fragment, itemId){
>     	if(fragment.childNodes == null)
>     		return null;
>     	for(var i = 0; i < fragment.childNodes.length ; i++ ){
>     		var c = fragment.childNodes[i];
>     		if(c.id == itemId)
>     			return c;
>     	}
>     	for(var i = 0; i < fragment.childNodes.length ; i++ ){
>     		var c = fragment.childNodes[i];
>     		var item = myfaces._impl._util._Utils.findHtmlItemFromFragment(c, itemId);
>     		if(item != null)
>     			return item;
>     	}
>     	return null;
>     };

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