Just tested this;

Tiddler: Open with open actions
<$list filter="[has[open-actions]!has[draft.of]]">
<$button>
<<currentTiddler>> {{!!open-actions}}<br>
Click me!
</$button>
</$list>

It creates a button for all tiddlers having a field open-actions with 
content eg  a tiddler with 
<$action-sendmessage $message="tm-notify" 
$param="SampleNotification"/><$action-setfield 
mynow=<<now YYYY0MM0DD>>/>

Also a tiddler called SampleNotification has the message to display

This could be improved by using the an icon, or caption field, adding the 
same to the view template by Tagging [[Open with open actions]] with 
$:/tags/ViewTemplate
Also I would display the field with $view date widget, perhaps using 
relative date.

So this should be functionally equivalent to your original request.

Since you date stamp is today you could even put in a test that only show 
the button if is does not have today's date in the field.

Regards
Tony


On Thursday, November 29, 2018 at 4:00:49 PM UTC+11, TonyM wrote:
>
> Dave,
>
> The Quickest and easiest way to do I is to have a button appear when the 
> tiddler is opened, via a view template entry. Yes you will have to click it.
>
> Perhaps http://inmysocks.tiddlyspot.com/#TriggerActions%20Plugin can do 
> It, I am not sure.
>
> I have wanted something similar but was told we have to make a change in 
> the navigation mechanism, which is not so strait forward, and is likely to 
> have a performance impact.
>
> I have managed to get an action on close by adding an action to the Close 
> button, But the Close all (page Button) will bypass it, and close all does 
> not ”know" which tiddler your are using.
>
> *Another way*
>
> You could build your own tiddler, that contains a custom button that not 
> only sets the field as you wish, but also opens the target for view or 
> edit. As long as you click on that button to open the target tiddler you 
> can get what ever actions you want to happen inside the definition of that 
> button.
>
> Perhaps a tiddler containing the Button could be added to  
> ($:/tags/AboveStory 
> for elements to be placed at the top of the story river)
>
> Even better would be a way to add a field to any tiddler eg; 
> on-open-action, then a special tiddler/Menu will list all such tiddlers, 
> and provide a button which on click will transclude the on-open-action 
> field in that button (and execute it on click), this is speculations on my 
> part.
>
> *Basically what I am saying is if you provide a convenient way to open a 
> tiddler in the first place you can determine what also Happens when opening 
> it. It is not so easy to try and trap the opening of any tiddler, and 
> respond with actions when a specific tiddler is opened. However their may 
> be a hack no one has though of yet.*
>
> Regards
> Tony
>
>
> On Thursday, November 29, 2018 at 12:23:08 PM UTC+11, Dave wrote:
>>
>> I'd like to have that action happen when one specific tiddler opens.  I 
>> can put that tiddler in the default tiddlers, but also open in other 
>> situations.
>
>

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