Use template in $:/core/ui/ViewTemplate as view template in tabs macro

[Danielo Rodríguez]

Hello,

I was wondering why I can do the following:

{{HelloThere||$:/core/ui/ViewTemplate}}

But I can't use the template $:/core/ui/ViewTemplate as template for the tabs macro. Is there any way to emulate it?

Regards

[Tobias Beer]

Hi Danielo,

 

{{HelloThere||$:/core/ui/ViewTemplate}}

I imagine this doesn't work,
because the tabs macro runs with a variable currentTab,
leaving currentTiddler untouched.
And that is probably why the following
will give you a recursion error for each tab:

<<tabs

"HelloWorld [[tabs Macro]]"

"HelloWorld"

"$:/state/test-tabs"

"some-class"

"$:/core/ui/ViewTemplate">>

Recursive transclusion error in transclude widget

Since you're obviously already rendering the ViewTemplate for currentTiddler,

which is where the tabs macro is in.

Best wishes,

Tobias.

[Danielo Rodríguez]

Thanks Tobias,

So in order to fix this, the tabs macro should modify the current tiddler variable to the selected tab, right?

[Danielo Rodríguez]

I have been thinking about this... Maybe it's because I'm using the tabs macro as a component of the view template (tagged with the appropriate tag). But I'm not sure if this happens in a regular tiddler. Because of what you exposed, I think the result would be the same

[Danielo Rodríguez]

Hello Tobias,

I have modified the tabs macro this way for easier comparison here is a diff https://www.diffchecker.com/tXBz8Q8L):

\define tabs-cool(tabsList,default,state:"$:/state/tab",class,template)

<div class="tc-tab-set $class$">

<div class="tc-tab-buttons $class$">

<$list filter="$tabsList$" variable="currentTab"><$set name="save-currentTiddler" value=<<currentTiddler>>><$tiddler tiddler=<<currentTab>>><$button set=<<qualify "$state$">> setTo=<<currentTab>> default="$default$" selectedClass="tc-tab-selected" tooltip={{!!tooltip}}>

<$tiddler tiddler=<<save-currentTiddler>>>

<$set name="tv-wikilinks" value="no">

<$transclude tiddler=<<currentTab>> field="caption">

<$macrocall $name="currentTab" $type="text/plain" $output="text/plain"/>

</$transclude>

</$set></$tiddler></$button></$tiddler></$set></$list>

</div>

<div class="tc-tab-divider $class$"/>

<div class="tc-tab-content $class$">

<$list filter="$tabsList$" variable="currentTab">

<$reveal type="match" state=<<qualify "$state$">> text=<<currentTab>> default="$default$">

<$tiddler tiddler=<<currentTab>>>

<$transclude tiddler="$template$" mode="block">

</$transclude>

</$tiddler>

</$reveal>

</$list>

</div>

</div>

\end

Basically I have added a $tiddler widget to set the currentTiddler to the current tab before the template transclusion. I have also removed the second transclusion of the current tab. To be honest, I never saw that way of using a template: transcluding the template and then transcluding the tiddler inside it.

[Danielo Rodríguez]

An alternative, and probably easier solution would be to just use a template like this:

<$tiddler tiddler=<<currentTab>>>

<$transclude tiddler="$:/core/ui/ViewTemplate"/>

</$tiddler>

[Jeremy Ruston]

Hi Danielo

That’s correct. We can’t change the tabs macro to store the current tab in the currentTiddler variable because it would break all the places where the tabs macro needs to be used without modifying the current tiddler. For example, in the info panel the currentTiddler is the tiddler being displayed, and we use the tabs macro to transclude the individual tabs. The content of those tabs needs to be able to operate on the currentTiddler to display the correct information.

Best wishes

Jeremy

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[Jeremy Ruston]

Hi Danielo

On 30 Aug 2016, at 12:34, Danielo Rodríguez <rdan...@gmail.com> wrote:

To be honest, I never saw that way of using a template: transcluding the template and then transcluding the tiddler inside it.

The way that the transclude widget works is that the content of the widget is used as a fallback if the transcluded content is missing.

Best wishes

Jeremy

[Danielo Rodríguez]

The way that the transclude widget works is that the content of the widget is used as a fallback if the transcluded content is missing.

Best wishes

Jeremy

I realized after re-reading the documentation. Thanks.