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How to set BusinessTheme programatically? [message #1764554]

Wed, 31 May 2017 08:13

Linuxhippy Mising name

Messages: 71
Registered: July 2009

Member

Hi there,

I am currently starting my RWT application using Eclipse (Launch Configuration -> RWT -> EntryPoint) and everthing seems to work fine. If possible I would like to stay with this setup as long as possible and avoid OSGI etc as my app is small and all the complexity doesn't seem to be worth it.

Is there any way to set a theme (in this case BusinessTheme) programatically, when just using the EntryPoint?

Thank you in advance, Clemens

PS: I tried to set the BusinessTheme using the ExtensionPoint mechanism and launch it as RAP application, but I get multiple errors:

1. at launch: Validation: Missing Constraint: Import-Package: org.eclipse.rap.rwt.internal.lifecycle (no copy&paste from the error window)

2. in console:

Command-line arguments:  -dev file:/home/ce/workspace-rap2/.metadata/.plugins/org.eclipse.pde.core/New_configuration/dev.properties -os linux -ws gtk -arch x86_64 -consoleLog -console -data /home/ce/workspace-rap2/.metadata/.plugins/org.eclipse.rap.tools.launch/New_configuration

!ENTRY org.eclipse.rap.rwt.osgi 4 0 2017-05-31 10:12:34.753
!MESSAGE Unable to start RWT application.
!STACK 0
java.lang.RuntimeException: org.eclipse.equinox.http.servlet.internal.error.PatternInUseException: Pattern already in use: /rwt-resources
	at org.eclipse.rap.rwt.osgi.internal.ApplicationReferenceImpl.registerResourceDirectory(ApplicationReferenceImpl.java:198)

Caused by: org.eclipse.equinox.http.servlet.internal.error.PatternInUseException: Pattern already in use: /rwt-resources
	at org.eclipse.equinox.http.servlet.internal.HttpServiceRuntimeImpl.registerHttpServiceResources(HttpServiceRuntimeImpl.java:634)
	at

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Re: How to set BusinessTheme programatically? [message #1764629 is a reply to message #1764554]

Wed, 31 May 2017 23:27

Chris Fairhall

Messages: 221
Registered: February 2011

Senior Member

I don't think you can launch an as a RAP Application an also use programmatic configuration.
Try launching as an RWT application using an ApplicationConfiguration

The configuration class will let you set your entrypoint and give you the opportunity to add themes using org.eclipse.rap.rwt.application.Application.addStyleSheet(String, String, ResourceLoader)
This is how the Workbench adds the themes configured using extension points. You'll need to use the theme bundle's classloader as the ResourceLoader, or do something like that the Workbench does in org.eclipse.rap.ui.internal.servlet.WorkbenchApplicationConfiguration.registerThemes(Application)

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