| Selection of a IJavaElement - determine the associated project [message #84920] |
Sun, 29 June 2003 18:40  |
Eclipse User |
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Hi,
I'm writing a plugin that uses the "org.eclipse.ui.popupMenus"-Extension
Point to add an action to the java views.
The action is enabled for IClassFile, ICompilationUnit and IType.
For my plugin to work I need the project "in which the selected element
lies".
How do I get this correctly.
Thanks,
Lars
NOTE: IJavaElement.getJavaProject().getProject() works not correctly if
the "same" java element (maybe from an external jar file) occurs in more
than one open project. I believe it to be an issue with the java model...
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| Re: Selection of a IJavaElement - determine the associated project [message #85554 is a reply to message #85453] |
Mon, 30 June 2003 11:53  |
| Eclipse User |
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Hi Stefan,
thank you very much for your answer.
It will work, if the selection was made in the resource navigator, because
only resources are shown therein.
However, if the selection occurs in one of the java views (java browsing,
package explorer) the selected element is probably of IJavaElement.
A java element can deliver its associated java project, but im my case,
when the java element comes from an archive that is used in more than one
open project the returned java project is not always the project where the
selection occured.
Kind of complicated situation, huh?
Thanks again,
Lars
Stefan wrote:
> Hi !
> I don't know if this is correct way, but perhaps you could navigate
> the tree using :
> ISelection selection = wPart.getSite().getSelectionProvider.
> ().getSelection();
> if (selection instanceof StructuredSelection)
> {
> if (!ssel.isEmpty())
> {
> Object o = ssel.getFirstElement();
> if (o instanceof Project)
> {
> Project project = (Project) o;
> // use project as you like
> }
> else if (o instanceof Resource)
> {
> // if resource is selected
> // navigate the resource tree using getParent method
> // until you reach the Project or null (workspace root), but should
> // hit the project first
> }
> }
> I take only first resource that is selected, but it is possible,
> that there are multiple files selected in different projects.
> regards, Stefan
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| Re: Selection of a IJavaElement - determine the associated project [message #86294 is a reply to message #86235] |
Tue, 01 July 2003 06:58 |
| Eclipse User |
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Hi Stefan,
thank you very much again.
You might want to check the bug report #39468 I filed yesterday.
There your assumption is confirmed, but sadly no satisfing solution
provided so far.
I guess I have to let the user choose which project he meant by selecting
the darned element ;-)
Regards,
Lars
Stefan wrote:
> Hi again
> You are right, and I tested it with this fragment of code:
> StructuredSelection ssel = (StructuredSelection) selection;
> if (!ssel.isEmpty())
> {
> Object o = ssel.getFirstElement();
> while(o != null && o instanceof JavaElement)
> {
> System.out.println(((JavaElement)o).getElementName());
> o = ((JavaElement)o).getParent();
> }
> }
> If I select the class or package which is of type JarPackageFragment
> I get the wrong project name but if
> I select the Jar file itself (rt.jar) which is JarPackageFragmentRoot
> it gives me the correct project name.
> After little experimenting I noticed, that you get the project that you
> expand first in the package explorer, so my guess is that there is one
> instance of rt.jar per project , but only one instance of given
> JarPackageFragment per workspace (to save memory?).
> regards, Stefan
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