[brailleblaster] Re: SWT Browser Contrl

  • From: "John J. Boyer" <john.boyer@xxxxxxxxxxxxxxxxx>
  • To: brailleblaster@xxxxxxxxxxxxx
  • Date: Wed, 2 Feb 2011 11:35:20 -0600

Thanks. This does help and is very interesting. Maybe we can get a 
desktop application and a Web application at the same time. I'm not 
changing course, but this is a possibility worth looking at. One problem 
is that we might not know about accessibility until we tried it.


On Wed, Feb 02, 2011 at 09:13:09AM -0800, Chris von See wrote:
> Up front: I'm not necessarily advocating use of the SWT browser  
> control as a UI - it was more of a response to some of the concerns  
> expressed about the accessibility of SWT.  I've been curious about the  
> accessibility of the SWT browser control for my own purposes - Freedom  
> Scientific won't say that they support it, and I haven't talked to the  
> WindowEyes folks yet - so this seemed like a good opportunity to both  
> throw out a possibly viable option and get some info myself.
> Having said that, if you chose to use the SWT browser control you  
> would in essence be writing a web-based braille application, most  
> likely using an embedded servlet container such as Jetty.  What you  
> end up with may well be something similar to Google Docs; similar  
> approaches are used in numerous applications, but whether it works for  
> BrailleBlaster would depend on the functionality you want to  
> implement.  Our TAMC application uses an embedded Jetty container to  
> render a HTML UI, but it uses a regular browser window (whatever the  
> user's default browser is) and not the SWT browser window.  The system  
> default browser can be launched using the Desktop.browse() or  
> Desktop.open() methods in JDK 1.6 and later.
> Here's a half-formed possible approach: Much of the back-end  
> functionality of BrailleBlaster (file load/save, search/replace,  
> translation, etc.) would be implemented much as it is envisioned now,  
> except that the user interface would be implemented using some  
> combination of HTML, JavaScript, Java servlets and/or other  
> technologies (UI builders such as Java Server Faces or Freemarker, and/ 
> or a web framework such as Apache Struts, Apache Wicket or even  
> Spring, for example).  Editing would be done in an HTML text control  
> or in an ActiveX text editor (not sure about accessibility in this  
> case, but there are lots of options out there), with buttons,  
> checkboxes, and other controls implemented using HTML.  It's possible  
> to call Java from JavaScript inside the SWT browser control, so if you  
> need an immediate reaction to the changing of control state you should  
> be able to do it with Java if JavaScript isn't enough.  For multiple  
> views you would probably open multiple SWT shells, each with its own  
> browser control.
> There are lots of code snippets for the browser control at 
> http://www.eclipse.org/swt/snippets/#browser , and the SWT example set 
> includes a BrowserExample application which  can be downloaded from 
> http://help.eclipse.org/helios/index.jsp?topic=/org.eclipse.platform.doc.isv/reference/api/org/eclipse/swt/browser/package-summary.html
> Hope this helps...
> Cheers
> Chris
> On Feb 2, 2011, at 3:22 AM, John J. Boyer wrote:
> >Chris von See, could you elaborate on your idea of making the  
> >framework
> >of BrailleBlaster in SWT and presenting the GUI content with html in  
> >the
> >browser control? When it is asked to produce UTDML liblouisutdml
> >produces output in Daisy xml format. This would work ni cely with a
> >browser if we have a way of presenting the menus and the Daisy and
> >Braille views.
> >
> >What does the SWT browser control do if it gets a text file?
> >
> >Thanks,
> >John
> >
> >-- 
> >John J. Boyer; President, Chief Software Developer
> >Abilitiessoft, Inc.
> >http://www.abilitiessoft.com
> >Madison, Wisconsin USA
> >Developing software for people with disabilities
> >
> >

John J. Boyer; President, Chief Software Developer
Abilitiessoft, Inc.
Madison, Wisconsin USA
Developing software for people with disabilities

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