Module:Main page image

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This module provides utility for wrappers of {{Main page image}}.

Usage

{{#invoke:Main page image|width|ImageTitle}} Get image width from ImageTitle.

ImageTitle must not contain the namespace prefix (eg "File:"). You can use {{Remove file prefix}} to strip it, if it exists, when sanitising template params. Example: {{#invoke:Main page image|width|{{Remove file prefix|{{{image}}}}}}}

The above documentation is transcluded from Module:Main page image/doc. (edit | history)
Editors can experiment in this module's sandbox (edit | diff) and testcases (create) pages.
Subpages of this module.

local p = {}
local getArgs = require('Module:Arguments').getArgs

function p.width(frame)
	local args = getArgs(frame)
	return p._width(args)
end

function p._width(args)
	local new_width = 140														-- square image width
	local page = mw.title.makeTitle('File', args[1])
	if not page.fileExists then
		return new_width
	end

	local ratio = page.file.width / page.file.height
	
	if ratio > 1.2 then															-- consider images with aspect ratio 5:6 - 6:5 as "basically square"
		new_width = 160															-- tall image width
	elseif ratio < 0.8333 then
		new_width = 120															-- long image width
	end

	return new_width
end

return p