Eclipse (ctrl+space) content assist hook

Question

I wrote a plugin that gets user input from Java editor, makes some computation, and writes the results to my view. The way I start the process of aforementioned computation is via context menu and I hate it. I would like it to start on ctrl+space, i.e. content assist. It is faster, more intuitive w.r.t. what the plugin does. Is there a way to do so?

Update: For example, what should I do to get the current cursor position when user presses ctrl+space? I would use that position info and print it to my view. This is the most simplistic plugin that I basically need.

Answer 1

You could take part in the content assistent calculation of Ctrl-Space by extending javaCompletionProposalComputer. However, if you want to trigger some arbitrary modification operation on the Java file, you are better suited by providing a quick assist instead.

If you are confused by the terms: An example for quick assist is the suggestion "Invert if statement", which you can see when pressing Ctrl-1 with the cursor placed on an "if".