Raible's Wiki: CreateAnAJAXBasedFileuploadProgressbarDialog

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!!!How to Create an AJAX based file upload progress-bar dialog

This HOWTO shows how i combined [AJAX Struts File Upload Progress Meter|http://kencochrane.blogspot.com/2006/03/ajax-struts-file-upload-progress-meter.html] with a custom tweaked version of [Lightbox Gone Wild!|http://particletree.com/features/lightbox-gone-wild/] to create a user friendly upload progress bar dialog with the web page below faded out. This means that users are unable to click on any links on the website and shows a the visual indication of how much is left of the file transfer. Its easy to customize the content of the dialog.

!!!How to Create an AJAX based file upload progress-bar

This tutorial shows how [AJAX Struts File Upload Progress Meter|http://kencochrane.blogspot.com/2006/03/ajax-struts-file-upload-progress-meter.html] has been combined with a custom tweaked version of [Lightbox Gone Wild!|http://particletree.com/features/lightbox-gone-wild/] to create a user friendly upload progress bar dialog with the web page below faded out. This means that users are unable to click on any links on the website and shows a the visual indication of how much is left of the file transfer. Its easy to customize the content of the dialog (see __{{lbContent}}__ in the section __Comments and tips__ section).

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For newcomers to appfuse see [QuickStart Guide]

For newcomers to appfuse see [AppFuseQuickStart] as well as the videos at the top of the page [AppFuse]

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!Notes for usage on previous Appfuse Versions

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This tutorial can also work on previous versions of Appfuse but you need to include the dependend AJAX framewords (they are by default included in Appfuse 1.9.3). You can grap prototype and scriptaculous from Appfuse 1.9.3 and place the scrips in the same folders as where they are placed in Appfuse 1.9.3. You also need to reference the Ajax frameworks in the decorator default.jsp. Below is an excerpt of the begining of {{default.jsp}} from the Appfuse 1.9.3 project used as basis for this tutorial. You specifically needs the lines that references "prototype.js" and "scriptaculous.js" in that order since "scriptaculous.js" depends on "prototype.js". __It's important to note__ that scriptaculous.js may load additionally js scrips. And this solution in thus tutorial also needs the effects.js to be available. But in order to be safe you should include them all. They are:

*builder.js

*effects.js

*dragdrop.js

*controls.js

*slider.js

__Excerpt of the beginning of default.jsp__

{{{

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"

"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<%@ include file="/common/taglibs.jsp"%>

<head>

<%@ include file="/common/meta.jsp" %>

<decorator:head/>

</head>

...

}}}

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#__{{fileUploadForm.jsp}}__ and lbContent - the jsp page containing the struts form. It contains a __{{lbContent}}__ div tag which represent the html code inserted in the upload dialog. It also contains an embedded javascript with the function __{{function upload(form)}}__ This script only trigger the upload mechanism if one or more files has been selected.

#__{{fileUploadForm.jsp}}__ and __{{lbContent}}__ - the JSP page containing the struts form. It contains a __{{lbContent}}__ div tag which represent the html code inserted in the upload dialog. It also contains an embedded javascript with the function __{{function upload(form)}}__ This script only trigger the upload mechanism if one or more files has been selected.

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In the file log4j.properties change the line {{{log4j.rootCategory=DEBUG, mail}}} to {{{log4j.rootCategory=DEBUG, R}}} to get the log log messages written into a log file.

In the file __{{log4j.properties}}__ change the line {{{log4j.rootCategory=DEBUG, mail}}} to {{{log4j.rootCategory=DEBUG, R}}} to get the log log messages written into a log file.

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CreateAnAJAXBasedFileuploadProgressbarDialog