Description Laurent Le Moux 2012-01-09 08:24:18 EST

Build Identifier: Version: 3.7.1 Build id: M20110909-1335

Hello,

I have got a problem experimenting the Jevon Drag & Drop tutorial.
I defined the simple following model (see attached file) :
ModelA (container) -has-> 1..* ElementA
ElementA has a 'name' attribute and -references-> 0..1 ElementA (itself).

I generated the corresponding GMF plugin after setting the following parameters in the ModelA.gmfgen file as requested in the Jevon 'Drag and Drop' tutorial :

Contains Shortcuts To : modela (ecore file extension)
Shorcuts Provided For : modela.diagram.part.ModelADiagramEditorID

Then I created two diagrams, the first one containing a single 'My A' element.
In the second one, I created a 'My B' element.
Then I drag and drop the 'My A' element from the navigator on the second diagram.
It works fine. I also can link both the element and the created shortcut.

I then save the files but, when I refresh the second diagram (F5), shortcut and link disappear !

In XXCanonicalEditPolicy.refreshSemantic(), it appears that the shortcut is added to an 'orphaned' list and removed.

Here's a workaround to filter out the shortcut from the 'orphaned' list :

for (Iterator<View> shortcutsIterator = knownViewChildren.iterator(); shortcutsIterator.hasNext() {
  View next = shortcutsIterator.next();
  if (next.getEAnnotation("Shortcut") != null) {
    shortcutsIterator.remove();
  }
}

I added these few lines just before 'orphaned.addAll(knownViewChildren);'.

However, I believe something should be done at GMF code generation level to prevent from behaviour.

Kind regards,

Laurent

Reproducible: Always

Steps to Reproduce:
See description.