Portlet Drag and Drop

Fri May 2 14:47:54 UTC 2008

Thank you Michael. IBM is going to go test it with some new screen reader
software. Usability of drag drop will be very important.

Rich

Rich Schwerdtfeger
Distinguished Engineer, SWG Accessibility Architect/Strategist
Chair, IBM Accessibility Architecture Review  Board
blog: http://www.ibm.com/developerworks/blogs/page/schwer

             "Michelle                                                     
             D'Souza"                                                      
             <michelle.dsouza@                                          To 
             utoronto.ca>              Richard                             
                                       Schwerdtfeger/Austin/IBM at IBMUS      
             05/01/2008 12:50                                           cc 
             PM                        Colin Clark                         
                                       <colin.clark at utoronto.ca>,          
                                       fluid-work                          
                                       <fluid-work at fluidproject.org>       
                                                                   Subject 
                                       Re: Portlet Drag and Drop           

Hi Rich,

Yes, we are using aria to communication drag and drop functionality. We are
using the 'grab' state on items that can be moved and 'dropeffect' state on
elements that are valid drop targets. We are also using 'selected' and
'activedescendent' to communicate which item has focus.

Michelle

On 1-May-08, at 10:19 AM, Richard Schwerdtfeger wrote:

      Colin,

      Scratch the last note. Have you implemented aria drag/drop in the
      imagegallery tool. I can't see it from the example? It is not clear
      from looking at the source. It would be nice to know if an image in
      the gallery is draggable. We are looking for real world test cases
      for ATs.

      Rich Schwerdtfeger
      Distinguished Engineer, SWG Accessibility Architect/Strategist
      Chair, IBM Accessibility Architecture Review Board
      blog: http://www.ibm.com/developerworks/blogs/page/schwer
      <graycol.gif>"Michelle D'Souza" <michelle.dsouza at utoronto.ca>

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                                                              Portlet Drag 
                                                              and Drop     

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      Hi,

      I know there has been some conversation about the best user
      experience
      for reordering portlets. I thought it would be useful if I built an
      example to show the alternate user experience.

      You can see the new experience here:
      http://build.fluidproject.org/sakai-imagegallery-tool/sample-code/reorderer/portal/portalWithAvatarClone.html

      and the original experience here:
      http://build.fluidproject.org/sakai-imagegallery-tool/sample-code/reorderer/portal/portal.html

      One of the problems with the new example is that it also showcases
      one
      of our evil bugs. :)  The bug is that the drop target shows up
      somewhere but the portlet drops elsewhere.
      http://issues.fluidproject.org/browse/FLUID-407  It's quite a tricky

      little bug from a technical standpoint because the underlying problem

      is that we are getting browser events in the wrong order.  We have a

      strategy for working around this issue but it is quite complex and
      will take a while to implement.

      Michelle

      ------------------------------------------------------
      Michelle D'Souza
      Software Developer, Fluid Project
      Adaptive Technology Resource Centre
      University of Toronto

      _______________________________________________
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------------------------------------------------------
Michelle D'Souza
Software Developer, Fluid Project
Adaptive Technology Resource Centre
University of Toronto

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