The message is directed primarily at Jan-Philipp, who has been working on handler priorities. (All CC you all this time because I don't know if you have subscribed to the mailing list yet.)
One case in which the current model for handler priority doesn't
work is when a handler that wants to handle files with specific extensions.
For
example: The CDTHandler probably wants to handle .c, .cpp and .h files, while
the IFileHandler can take other kinds of files. Maybe a handler should
declare that it handles a certain Content type[1], as well that it handles a certain class.
A
related problem is handlers that can handle multiple different kinds of
elements. For example, the CDTHandler should probably be able to handle
both IFile:s with C content as well as C syntax tree elements.
---
I
ran into this problem because the CDT handler for files stopped working. It
turn out that in the Package Explorer view, when a file is selected, the
selected element will be an IFile. In the Project Explorer view on the
other hand the selected element is a CDT Compilation Unit object
that represents the file.
Jens Lideström
Software developer
rt-labs
[1]:
http://help.eclipse.org/neon/index.jsp?topic=%2Forg.eclipse.platform.doc.isv%2Fguide%2Fruntime_content.htm&cp=2_0_3_4
