Per tiddler type preview

#1

For determining whether to show the preview pane there are two configurations: global or per tiddler. I’d like to know if it is possible to have a per tiddler type state? For example, when writing a javascript tiddler I don’t need a preview, so I’d like all javascript tiddlers to not have previews but other tiddlers to have.

I know I can rewrite the core tiddler that has this logic ( $:/core/ui/EditTemplate/body/default) but I’m wondering if it is possible to do it externally to the core plugin. Maybe catch navigation events to just-in-time write the global state tiddler?

#2

Theoretically, we could introduce a cascade that is run to determine if a specific tiddler should show a preview. The default cascade entries would implement the current logic, and users would be able to insert their own cascade rules.

#3

In the meantime, you might prefer to set up an edit template variant to apply to the javascript tiddlers, using the edit template cascade:

$:/tags/EditTemplateBodyFilter

A custom edit template can bypass the preview-pane element altogether. And if there are other preferences that track javascript-tiddler editing, you can fold those in as well.