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TiddlyWiki5/editions/tw5.com/tiddlers/macros/TabsMacro.tid

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caption: tabs
created: 20131228162203521
modified: 20210721122823354
tags: Macros [[Core Macros]]
title: tabs Macro
type: text/vnd.tiddlywiki
The <<.def tabs>> [[macro|Macros]] presents a [[selection of tiddlers|Title Selection]] as a set of tabs that the user can switch between.
The tabs display the <<.field caption>> field of a tiddler if it has one, or the tiddler's title otherwise. If specified, the tabs display the <<.field tooltip>> field of a tiddler as the respective button tooltip.
By default the tabs are arranged horizontally above the content. To get vertical tabs, set the <<.param class>> parameter to <<.value tc-vertical>>.
!! Parameters
;tabsList
: A [[filter|Filters]] selecting which tiddlers to include
;default
: The title of the tiddler whose tab is to be selected by default, if the [[state tiddler|StateMechanism]] doesn't exist. The state tiddler takes precedence over this setting
;state
: The prefix for the title of a [[state tiddler|StateMechanism]] for noting the currently selected tab, defaulting to `$:/state/tab`. It is recommended that this be a [[system tiddler|SystemTiddlers]]
;class
: Additional [[CSS|Cascading Style Sheets]] classes for the generated `div` elements. Multiple classes can be separated with spaces
;template
: Optionally, the title of a tiddler to use as a [[template|TemplateTiddlers]] for transcluding the content of the selected tab
;buttonTemplate
: Optionally, the title of a tiddler to use as a [[template|TemplateTiddlers]] for transcluding the content of the button for the selected tab
;retain
: Optionally, "yes" specifies that the content of the tabs should be retained when switching to another tab, avoiding re-rendering it (this can be useful to avoid video or audio sources unexpectedly resetting)
;actions
: Optionally, actions can be specified that are triggered when changing a tab. Within the actions, the title of the selected tab is available in the <<.var currentTab>> variable and the `currentTiddler` variable from outside the tabs macro is available in the <<.var save-currentTiddler>>
;explicitState
: Optionally, an explicit state title can be specified. It will be preferred over the internally computed (qualified) state title
Within the template, the title of the selected tab is available in the <<.var currentTab>> variable.
The <<.vlink currentTiddler>> variable is not affected by the <<.var tabs>> macro. This can put you in trouble if the list of tabs includes tiddlers that depend on the value of the <<.vlink currentTiddler>>, for example tiddlers listing children based on its own name. To overcome this problem you can use a [[TemplateTiddler|TemplateTiddlers]] like the following:
```
<$tiddler tiddler=<<currentTab>>>
<$transclude mode="block" />
</$tiddler>
```
<<.macro-examples "tabs">>