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Wide image/main.lua

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+-- This module implements [[template:wide image]] and [[template:panorama]]
+local p = {}
+
+local function getfilename(s)
+	s = mw.ustring.gsub(s or '', '^%s*[Ff][Ii][Ll][Ee]%s*:%s*', '')
+	s = mw.ustring.gsub(s or '', '^%s*[Ii][Mm][Aa][Gg][Ee]%s*:%s*', '')
+	return s
+end
+
+local function getwidth(s, w, h)
+	w = mw.ustring.gsub(w or '0', '^%s*(%d+)%s*[Pp][Xx]*%s*$', '%1')
+	h = mw.ustring.gsub(h or '0', '^%s*(%d+)%s*[Pp][Xx]*%s*$', '%1')
+	w = tonumber(w) or 0
+	h = tonumber(h) or 0
+	if w > 0 then
+		return w
+	end
+
+	local file = s and mw.title.new('File:' .. mw.uri.decode(mw.ustring.gsub(s,'%|.*$',''), 'WIKI'))
+	file = file and file.file or {width = 0, height = 0}
+
+	if h > 0 then
+		w = math.floor(h * (tonumber(file.width) or 0)/(tonumber(file.height) or 1) + 0.5)
+		if w > 0 then
+			return w
+		end
+	end
+
+	w = tonumber(file.width) or 0
+	return w
+end
+
+local function getimage(s, w, a, c, rtl)
+	if c == 'thumb' or c == 'thumbnail' or c == 'frame' or c == 'border' then
+		c = s
+	elseif rtl and c ~= '' then
+		c = '‪' .. c .. '‬'
+	end
+	return '[[File:' .. (s or '') .. '|' .. (w or '') .. '|alt=' .. (a or '') 
+		.. '|' .. mw.text.unstrip(c or '') .. ']]'
+end
+
+local function getcontainers(noborder, float, width, maxwidth)
+	local r = mw.html.create('div')
+	if noborder then
+		if float == 'left' then
+			r:addClass('floatleft')
+		elseif float == 'right' then
+			r:addClass('floatright')
+		elseif float == 'none' then
+			r:addClass('floatnone')
+		else -- center is default
+			r:addClass('floatnone')
+			r:css('margin-left', 'auto')
+			r:css('margin-right', 'auto')
+			r:css('overflow', 'hidden')
+		end
+	else
+		r:addClass('thumb')
+		if float == 'left' then
+			r:addClass('floatleft')
+		elseif float == 'right' then
+			r:addClass('floatright')
+		elseif float == 'none' then
+			r:addClass('tnone')
+		else -- center is default
+			r:addClass('tnone')
+			r:css('margin-left', 'auto')
+			r:css('margin-right', 'auto')
+			r:css('overflow', 'hidden')
+		end
+	end
+	r:css('width', width)
+	r:css('max-width', maxwidth)
+	local d = noborder and r or r:tag('div'):addClass('thumbinner')
+
+	return r,d
+end
+
+function wideimage(image, width, height, caption, boxwidth, float, alt, border, capalign, dir, bgtype)
+	if image then
+		image = getfilename(image)
+		local iwidth = getwidth(image, width or '0', height or '0')
+		if width == nil then
+			width = iwidth .. 'px'
+		end
+		local rtl = dir and dir == 'rtl' or nil
+		local noborder = border and border == 'no' or nil
+
+		local maxwidth = noborder and (iwidth .. 'px') or ((iwidth + 10) .. 'px')
+
+		local r,d = getcontainers(noborder, float or '', boxwidth or 'auto', maxwidth)
+
+		if tonumber(width) then
+			width = width .. 'px'
+		end
+
+		cclass = 'noresize '
+
+		if not (border == 'no') then
+			cclass = cclass .. 'thumbimage' 
+		end
+
+		if (bgtype == 'norm') then
+			cclass = cclass .. ' wide-image-normbg'
+		elseif (bgtype == 'none') then
+			cclass = cclass .. ' wide-image-nobg'
+		end
+
+		d:tag('div')
+			:addClass(cclass)
+			:css('overflow', 'auto')
+			:css('direction', rtl and 'rtl' or nil)
+			:wikitext(getimage(image,width,alt,caption or '',rtl))
+		if caption then
+			d = d:tag('div')
+					:addClass('thumbcaption')
+					:css('text-align', capalign)
+			if noborder == nil then
+				d:tag('div')
+					:addClass('magnify')
+					:wikitext('[[:File:' .. image .. '| ]]')
+			end
+			d:wikitext(caption)
+		end
+		return tostring(r)
+	end
+	return ''
+end
+
+function p.main(frame)
+	local getArgs = require('Module:Arguments').getArgs
+	local args = getArgs(frame)
+	local styles = frame:extensionTag{
+		name = 'templatestyles',
+		args = { src = 'Module:Wide image/styles.css' },
+	}
+
+	return styles .. wideimage(
+			args['image'] or args[1], args[2] or nil, -- width
+			args['height'] or nil, args['caption'] or args[3], 
+			args['width'] or args[4], args['align'] or args[5], 
+			args['alt'], args['border'], args['align-cap'], args['dir'], args['bgtype']
+			)
+end
+
+return p

Wide image/styles.css

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+.wide-image-normbg, .thumbimage.wide-image-normbg {
+	background: var(--background-color-neutral-subtle, #f8f9fa);
+	color: inherit;
+}
+
+.wide-image-nobg, .thumbimage.wide-image-nobg {
+	background: transparent;
+	color: inherit;
+}