On Thursday, August 3, 2017 at 8:35:19 PM UTC-7, TonyM wrote:
>
> I would be greatful for some guidence on how to Hide or Show Button when
> tiddler exists/or not
> I have some buttons, defined in macros, which I call and use a parameter
> and currentTiddler to name a second tiddler on which I wish to act.
>
> *My Question*
> How best can I display the result of such macro ie the button, only if the
> tiddler does not yet exist, and in other cases only if the named tiddler
> exists?
>
You can use a <$list> widget with the "is[tiddler]" or "is[missing]" filter
to test if a tiddler exists or not. Something like this:
\define editsubtiddler(type)
<$list filter="[all[current]is[tiddler]]">
<$button tooltip="Edit content in Separate tiddler">
<$action-sendmessage $message="tm-edit-tiddler"
$param="$(currentTiddler)$
- $type$" />
{{$:/core/images/edit-button}}
</$button>
</$list>
\end
enjoy,
-e
Eric Shulman
TiddlyTools.com: "Small Tools for Big Ideas!" (tm)
InsideTiddlyWiki: The Missing Manuals
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