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https://issues.apache.org/jira/browse/MYFACES-2640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12862576#action_12862576
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Werner Punz edited comment on MYFACES-2640 at 4/30/10 3:57 AM:
---------------------------------------------------------------

Btw. also afair, the recommendation of one of the EG members was not to doctor 
around here to identify where the child is and omit the wrapping code, 
or make other assumptoons, but to throw clearly an error in this case. While I 
have not followed this approach the implementations might head into this 
direction in the long run.
So design the components as clean as possible.

http://www.mail-archive.com/[email protected]/msg00003.html


      was (Author: werpu):
    Btw. also afair, the recommendation of one of the EG memebers was not to 
doctor around here to identify where the child is and omit the wrapping code, 
or make other assumptoons, but to throw clearly an error in this case. While I 
have not followed this approach the implementations might head into this 
direction in the long run.
So design the components as clean as possible.

http://www.mail-archive.com/[email protected]/msg00003.html

  
> (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
>   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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