[jira] [Updated] (MYFACES-3509) Array.prototype.forEach used in browsers that do not natively support this function

["Leonardo Uribe (JIRA)" <de...@myfaces.apache.org>]

     [ https://issues.apache.org/jira/browse/MYFACES-3509?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Leonardo Uribe updated MYFACES-3509:
------------------------------------

    Status: Patch Available  (was: Open)
    
> Array.prototype.forEach used in browsers that do not natively support this function
> -----------------------------------------------------------------------------------
>
>                 Key: MYFACES-3509
>                 URL: https://issues.apache.org/jira/browse/MYFACES-3509
>             Project: MyFaces Core
>          Issue Type: Bug
>          Components: General
>         Environment: IE8
>            Reporter: Mircea Toma
>         Attachments: MYFACES-3509-1.patch
>
>
> While running one of our test applications in IE8 we got this "Object doesn't support this property or method" error occurring.
> After debugging the code the problem was located in api/src/main/javascript/META-INF/resources/myfaces/_impl/_util/_Lang.js code. It seems that 'arrForEach' is trying to use the browser native 'forEach' function but it fails since IE8 (or IE7) does not implement it.
> Here is a constructed call stack that shows when and where the error occurs:
> (startPos) ? arr.slice(startPos).forEach(func, thisObj) : arr.forEach(func, thisObj); -- file: api/src/main/javascript/META-INF/resources/myfaces/_impl/_util/_Lang.js, line: 346
> this._Lang.arrForEach(this._q, closure, this._space);  -- file: api/src/main/javascript/META-INF/resources/myfaces/_impl/_util/_Queue.js, line: 155
> this.each(broadCastFunc); -- file: api/src/main/javascript/META-INF/resources/myfaces/_impl/_util/_ListenerQueue.js, line: 80
> this._evtListeners.broadcastEvent(eventData); -- file: api/src/main/javascript/META-INF/resources/myfaces/_impl/core/Impl.js, line: 564
> ....
> I noticed that in api/src/main/javascript/META-INF/resources/myfaces/_impl/_util/_LangQuirks.js there's a version of 'arrForEach' function that iterates over elements using a plain 'for' loop. Unfortunately this version of the method is not loaded because of the condition at the top of the file is not fulfilled. I attached a patch that we used to get things going. Of course you might have a better solution to this issue.
> Here's also the original JIRA case: http://jira.icesoft.org/browse/ICE-7899 

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