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Looking at the documentation of trinidad skinning selectors I noticed that some selectors end in :alias and others don't. For example:

.AFLabelDisabled:alias  Aliased style class that is included in the label selector for all the form components when they are disabled. It is a quick way to style disabled form components' labels the same, instead of for each component: .AFLabelDisabled:alias instead of e.g., "af|inputText:disabled af|inputText::label".
.AFErrorIconStyle   Style class that styles the .AFErrorIcon:alias icons.

There is even this selector, with and without the :alias:

.AFRequiredIconStyle    Style class that styles the .AFRequiredIcon icon.
.AFRequiredIconStyle:alias  Alias style class that styles the required icon for form components. It is included in the ::required-icon-style pseudo-element for the form components (e.g. af|inputText::required-icon-style)

I read the devguide on alias skinning, but that didn't help.

What exactly is the :alias for?

Angelo.Hannes
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1 Answers1

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Directly from the docs

If you want to change the font-family to Arial for everything, then you need to do a replace of every use of Tahoma to Arial. Well, in skinning you don't need to do this. You can use the :alias feature. A skin selector that ends in :alias is one that never gets written out to the generated CSS-2 stylesheet. Instead it is included in other skin selectors and is useful in that you can change css properties in one place, not in tens or maybe hundreds of places.

Philipp Gayret
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