[Springframework-rcp-dev] [Spring-JIRA] Created: (RCP-263) Adding ability to have multiple instance of internal frames

[Benoit X. (JIRA) <no...@at...>]

Adding ability to have multiple instance of internal frames
-----------------------------------------------------------

         Key: RCP-263
         URL: http://opensource.atlassian.com/projects/spring/browse/RCP-263
     Project: Spring Framework Rich Client Project
        Type: New Feature
  Components: Application Framework  
 Reporter: Benoit Xhenseval
 Assigned to: Oliver Hutchison 


Hello

based on Peter's RCP56 for Internal Frame, I note that the code has now moved to an mdi package.
Would it be possible to add the following code to DesktopApplicationPage so that it is possible to have more than 1 internal frame based on the same view.



    // + New Stuff for managing Singleton views...
    private Map<String,Boolean> singletonViews = new HashMap<String,Boolean>(); 
    
    /**
     * This method is called each time a new internal frame is being launched.
     * @return null means that this view is not launched yet and therefore a new one will be created.
     */
    @Override
    protected PageComponent findPageComponent(String viewDescriptorId) {
        Boolean isSingleton = singletonViews.get(viewDescriptorId);
        if (isSingleton==null) {
            // fetch the bean and check if it is a singleton.
            BeanFactory factory = Application.instance().getServices().getBeanFactory();
            isSingleton = factory.isSingleton(viewDescriptorId);
            singletonViews.put(viewDescriptorId,isSingleton);
        }
        
        if (isSingleton) {
            return super.findPageComponent(viewDescriptorId);
        } else {
            return null;
        }
    }


More details on
http://forum.springframework.org/showthread.php?t=20141&highlight=multiple+view

The code shown in JDk5.0 but it would be trivial to refactor for any older jdk.

Many thanks

Benoit

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