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add WidgetVariable documentation

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Eucaly
2014-10-02 23:02:48 +08:00
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editions/tw5.com/tiddlers/variables/WidgetVariable_ currentTiddler.tid Normal file
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caption: currentTiddler
created: 20141001232824187
modified: 20141002133837818
tags: Variables
title: WidgetVariable: currentTiddler
type: text/vnd.tiddlywiki
<<<
The ''currentTiddler'' variable containes the title of the current tiddler.
The ListWidget assigns the list result to the ''currentTiddler'' variable, unless the `variable` attribute is specified.
A couple of [[Widgets]] and [[Macros]] by default apply to the tiddler according to the ''currentTiddler'' variable.
The TranscludeWidget (or WikiText `{{||TemplateTitle}}`) transcludes a tiddler without changing the ''currentTiddler'' variable.
<<<
These mechanisms together allow you to write references like `<$view field="title" format="link"/>` in TemplateTiddlers or inside the ListWidget hierarchy without explicitly specifying the tiddler that it applies to.
See also [[WidgetVariable: storyTiddler]]