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rwt-resource for browser widget [message #1095051]

Mon, 26 August 2013 14:55

Julia Kurde

Messages: 91
Registered: November 2011
Location: Berlin, Germany

Member

Hi,

I need some help with rwt-resources that are loaded in an html file:

I have a browser widget (org.eclipse.swt.browser.Browser) in a view which should display an html file set by browser.setText(html). This html file uses some javaScript files that are included in the header.

To make these files available I want to register them as rwt-resources. This is done by a static method in class eub.jlzhinternal.chartview.utils.ChartUtilsJS (located in the same plugin as the javaScript files: eub.jlzhinternal).
E.g. one of the javaScript files is "/eub.jlzhinternal/js/date_format.js".
If I understood it correctly, it should be registered like

InputStream inputStream = ChartUtilsJS.class.getClassLoader().getResourceAsStream("js/date_format.js");
RWT.getResourceManager().register("js/date_format.js", inputStream);

To include this file in the html header I then generate a String like

"<script language=\"javascript\" type=\"text/javascript\" src=\"" + 
    RWT.getResourceManager().getLocation("js/date_format.js") + "\"></script>";

But already the input stream from the class loader is null!
So how do I get the input stream correclty?

Thanks for your help!
Julia

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Re: rwt-resource for browser widget [message #1095574 is a reply to message #1095051]

Tue, 27 August 2013 08:32

Manu Dev

Messages: 1
Registered: July 2009

Junior Member

I have been doing this and it worked for me.

Thread.currentThread().getContextClassLoader().getResourceAsStream("folder/filename");

Also if your "js" folder is not inside META-INF folder then make sure your "js" folder is in the class path (Bundle-ClassPath: tag)
Hope this helps.

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Re: rwt-resource for browser widget [message #1095901 is a reply to message #1095574]

Tue, 27 August 2013 17:36

Julia Kurde

Messages: 91
Registered: November 2011
Location: Berlin, Germany

Member

You were right, the "js" folder was not on the class path.

I added it in the build.properties:

output.jlzhinternal.jar = bin/
source.jlzhinternal.jar = src/
bin.includes = bin/,\
               META-INF/,\
               jlzhinternal.jar,\
               js/
jars.compile.order = jlzhinternal.jar

Is that correct?
Because still the input stream returned by

ChartUtilsJS.class.getClassLoader().getResourceAsStream("js/date_format.js") or
Thread.currentThread().getContextClassLoader().getResourceAsStream("js/date_format.js")

is null!

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Re: rwt-resource for browser widget [message #1097849 is a reply to message #1095901]

Fri, 30 August 2013 08:37

Julia Kurde

Messages: 91
Registered: November 2011
Location: Berlin, Germany

Member

Isn't this a standard scenario? All I want to do is display an html file, which is generated during runtime and depends on some java script files that are stored somewhere.

In the RCP this is easy because I can just access the file system directly.

But how to do that in RAP?

The java script files are static and are the same for all users in all sessions.

The html file is generated when a certain view is opend by the user and will be deleted when the view is closed. So it is a temporary file used only by one user in one session.

Can somebody please point me to an example?

Thanks!
Julia

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