Displaying inactive code snippet sessions in split window

Hi Xinen,

If you set up a ICodeSnippetTemplateSessionEventSink, that gets notified when a template session opens/closes, a declaration is activated/deactivated, or text changes within a declaration.  By handling those event notifications, you could probably use a classification tagger for other views to mark the various declaration ranges.

Code snippet declaration ranges are tagged with the display item CodeSnippetField or CodeSnippetDependentField classification types.

Hi Actipro,

When I say active/inactive view I meant whether the whole view has focus, not whether individual declarations are activated. I don't see how ICodeSnippetTemplateSessionEventSink helps as I don't need those notifications. Whenever I create a code snippet it would be in an active view and I should be able to use the default Actipro implementation. It is only when I change the active view while the code snippet session is open, that I need to make the changes.

For example we use a splitter and there' s a top and bottom view showing the same document. I open a "if" code snippet on top, and a "for" code snippet at the bottom. When my focus is on the bottom view I want the top "if" code snippet's fields to become light orange, just like how a selection becomes light blue when the view is inactive/no longer in focus.

So if a code snippet declaration range is tagged with CodeSnippetField, and will always be dark orange, what can I do to make it become light orange when its view becomes inactive? At any time I may have 1 active view with dark orange CodeSnippetFields and multiple inactive views with light orange CodeSnippetFields present.

If I create a new (light orange) classification type CodeSnippetInactiveField, will I be able to replace the existing dark orange CodeSnippetFields when the view inactive, and replace it back when the view is active? What's the best way to do this?

Hi Xinen,

Ok, I thought you had meant you wanted to duplicate the code snippet fields in the inactive views but it is more that you want to dim the appearance of the fields of any code snippet fields started in currently-inactive views.

The IActiveEditorViewChangeEventSink tells you when the active view changes.  You could watch that and when you detect it, look to see if editor.IntelliPrompt.Sessions has any code snippet template sessions.  Each session has a View that says which view it's associated with.  If there is a template session active, then use a tag aggregator to get all the IClassificationTags in that view that have CodeSnippetField or CodeSnippetDependentField classification types.  Those are your ranges you would need to tag in that view only with a high priority tag of your own, and whose associated highlighting style would need to override the existing ones.  Taggers can set priority via the "orderings" passed in to the base CollectionTagger constructor.

How do I set priority for my InactiveCodeSnippetFieldTagger over the CodeSnippetFieldTagger which is internal? What key should I use?

I'm only able to set priority over the Tokens (which is not what I want) using the following

new Ordering(TaggerKeys.Token, OrderPlacement.After)

I am also unable to specify ordering for the IClassificationType as OrderableClassificationType is also internal.

Hi Xinen,

The CodeSnippetFieldTagger uses a "CodeSnippetFieldTagger" key, so you can order against that.

Hi Actipro,

To clarify, even if I have a Ordering before the "CodeSnippetFieldTagger", the CodeSnippetFieldTagger's bright orange will still be displayed under my InactiveCodeSnippetFieldTagger's color. Is this right?

I found that I can't just use the same bright orange with a lower alpha value for the inactive tagger, as the bright orange will still be displayed through under my translucent orange. I had to use an opaque light orange to cover over the CodeSnippetFieldTagger's color.

Hi Xinen,

That is correct, you need to use a solid color because otherwise, the other background highlight will show through.  We allow layering of highlighted ranges.