Module:If preview

The pages listed in this category are templates.

This page is part of OODA WIKI's administration and not part of the encyclopedia.

Further template category notes

This category contains pages in the template namespace. It should not be used to categorize articles or pages in other namespaces.

To add a template to this category:

• If the template has a separate documentation page (usually called "Template:template name/doc"), add
•  [[Module:If preview]]
• to the <includeonly> section at the bottom of that page. Otherwise, add
•  <noinclude>[[Module:If preview]]</noinclude>
• to the end of the template code, making sure it starts on the same line as the code's last character.

This category is an index of templates which use TemplateStyles. It is automatically populated by {{Uses TemplateStyles}}.

This module implements {{If preview}} and {{Preview warning}}. It helps templates/modules determine if they are being previewed.

Prefer implementing the template versions in other templates.

In a module to use the main(), you need to pass a frame table with an args table.

For the preview warning, use _warning().

---

local p = {}

local cfg = mw.loadData('Module:If preview/configuration')

--[[
main

This function returns either the first argument or second argument passed to
this module, depending on whether the page is being previewed.

]]
function p.main(frame)
	if cfg.preview then
		return frame.args[1] or ''
	else
		return frame.args[2] or ''
	end
end

--[[
pmain

This function returns either the first argument or second argument passed to
this module's parent (i.e. template using this module), depending on whether it
is being previewed.

]]
function p.pmain(frame)
	return p.main(frame:getParent())
end


local function warning_text(warning)
	return mw.ustring.format(
		cfg.warning_infrastructure,
		cfg.templatestyles,
		warning
	)
end

function p._warning(args)
	
	local warning = args[1] and args[1]:match('^%s*(.-)%s*$') or ''
	if warning == '' then
		return warning_text(cfg.missing_warning)
	end
	
	if not cfg.preview then return '' end
	
	return warning_text(warning)
end

--[[
warning

This function returns a "preview warning", which is the first argument marked
up with HTML and some supporting text, depending on whether the page is being previewed.

disabled since we'll implement the template version in general

]]
--function p.warning(frame)
--	return p._warning(frame.args)
--end

--[[
warning, but for pass-through templates like {{preview warning}}
]]
function p.pwarning(frame)
	return p._warning(frame:getParent().args)
end

return p