Template:Mbox/doc: Difference between revisions

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{{Mbox|text=Messagebox of '''protection''' type. Denotes pages that are protected from editing.|type=protection}}

=== Technical notes ===

This template uses MediaWiki's <code><nowiki>{{#tag: }}</nowiki></code> parser function to dynamically load the stylesheet based on parameters.

Normally, TemplateStyles are loaded using a literal tag such as:

</syntaxhighlight>

However, the <code>src</code> attribute of <code><nowiki><templatestyles></nowiki></code> does not accept template parameters when written directly (e.g. <code><nowiki><templatestyles src="{{{class}}}/styles.css" /></nowiki></code>), as it will produce an "Invalid title for TemplateStyles' <code>src</code> attribute" error.

To work around this limitation, the <code>{{#tag:}}</code> parser function can be used instead:

{{#tag: templatestyles||src={{{class|mbox}}}/styles.css}}

</syntaxhighlight>

This allows the stylesheet source to be constructed dynamically from template parameters. For example, when <code>class=alert</code> is passed, the template will load the stylesheet for <code>Template:Alert/styles.css</code> rather than the default Mbox styles.

This approach is required whenever TemplateStyles must be selected conditionally or via parameters.

=== See also ===

* [[Template: Alert]]

@@ Line 27: / Line 27: @@
 {{Mbox|text=Messagebox of '''protection''' type. Denotes pages that are protected from editing.|type=protection}}
+=== Technical notes ===
+This template uses MediaWiki's <code><nowiki>{{#tag:&nbsp;}}</nowiki></code> parser function to dynamically load the stylesheet based on parameters.
+Normally, TemplateStyles are loaded using a literal tag such as:
+<syntaxhighlight lang="wikitext">
+<templatestyles src="mbox/styles.css" />
+</syntaxhighlight>
+However, the <code>src</code> attribute of <code><nowiki><templatestyles></nowiki></code> does not accept template parameters when written directly (e.g. <code><nowiki><templatestyles src="{{{class}}}/styles.css" /></nowiki></code>), as it will produce an "Invalid title for TemplateStyles' <code>src</code> attribute" error.
+To work around this limitation, the <code>{{#tag:}}</code> parser function can be used instead:
+<syntaxhighlight lang="wikitext">
+{{#tag: templatestyles||src={{{class|mbox}}}/styles.css}}
+</syntaxhighlight>
+This allows the stylesheet source to be constructed dynamically from template parameters. For example, when <code>class=alert</code> is passed, the template will load the stylesheet for <code>Template:Alert/styles.css</code> rather than the default Mbox styles.
+This approach is required whenever TemplateStyles must be selected conditionally or via parameters.
 === See also ===
 * [[Template: Alert]]