HI Mark,
To me it sounds like you are on the right track.
What I recommend in addition is you consider reusing JDT's Hover code
as it already has a lot of that logic. You may want to copy the code
as I believe that is what CDT did for the same feature and I wouldn't
be suprised if other language tools have too. I think there is a bug
in bugs.eclipse.org about moving the functionality from JDT to
platform to make it easier to reused, but I couldn't find it.
This is the JDT extension point:
http://help.eclipse.org/mars/topic/org.eclipse.jdt.doc.isv/reference/extension-points/org_eclipse_jdt_ui_javaEditorTextHovers.html?cp=3_1_1_31
This is the CDT one:
http://help.eclipse.org/mars/topic/org.eclipse.cdt.doc.isv/reference/extension-points/org_eclipse_cdt_ui_textHovers.html?cp=14_1_1_39
And then there is a "meta" hover called the combined hover that
chooses the best other hover installed to display:
https://git.eclipse.org/c/jdt/eclipse.jdt.ui.git/tree/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/java/hover/BestMatchHover.java
The preferences UI (see attached screenshot, but I am sure you can
find it in your Eclipse too) is for controlling and overriding:
https://git.eclipse.org/c/jdt/eclipse.jdt.ui.git/tree/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaEditorHoverPreferencePage.java
Jonah
~~~
Jonah Graham
Kichwa Coders Ltd.
www.kichwacoders.com
On 19 January 2016 at 17:35, Mark Leone <midnightj...@verizon.net> wrote:
> I'm making a change to PyDev and will submit a pull request if
> appropriate. But I'd like to know if there's a better way to do what I'm
> trying to do, or if the behavior I'm after is not of general interest.
>
> The issue I'm having is that I implemented a hover participant, and I'd
> like it to preempt the TextHover contributions from PyDev when it has
> something to contribute. This was a simple change, including the
> addition of a preference to toggle the behavior of ignoring PyDev's
> TextHover info when one or more hover participants contributes hover info.
>
> However, it seems I should probably make a more general mod as well,
> even though the above meets my current use case. What I have in mind is
> to add two attributes to the hover participant extension point. One
> attribute is an integer that specifies priority, and the other is a
> boolean that specifies whether or not to preempt PyDev's built-in
> TextHover. The behavior will be that registered hover participants will
> be called in decreasing priority order, and as soon as one contributes
> hover info, the remaining participants are not invoked. If any
> participant contributes hover info, the built-in PyDev TextHover will be
> invoked subsequently only if the aforementioned boolean attribute for
> the contributing participant specifies that PyDev TextHover should not
> be ignored.
>
> Does this make sense? Is there a better way to approach it? Is this
> behavior of general interest?
>
> -Mark
>
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