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Module:Bar

Permanently protected module
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require('Module:Lua class')
require('strict')

local BarBox = class('BarBox', {
	_css = 'Module:Bar/styles.css',

	__init = function (self, args)
		self.css			 = args[1]  or args.css
		self.float			 = args[2]  or args.float or 'none'
		self.backgroundcolor = args[3]  or args.backgroundcolor or 'white'
		self.borderwidth	 = args[4]  or args.borderwidth or '1'
		self.style			 = args[5]  or args.style
		self.width			 = args[6]  or args.width-- or 'auto'
		self.barwidth		 = args[7]  or args.barwidth or '100px'
		self.lineheight		 = args[8]  or args.lineheight-- or '1.6'
		self.title			 = args[9]  or args.title
		self.titlebar		 = args[10] or args.titlebar-- or 'none'
		self.left1			 = args[11] or args.left1
		self.left2			 = args[12] or args.left2
		self.right1			 = args[13] or args.right1
		self.right2			 = args[14] or args.right2
		self.bars			 = args[15] or args.bars
		self.caption		 = args[16] or args.caption -- deprecated
		self.footer			 = args[17] or args.footer or args[16] or args.caption
	end,

	create = function (cls, args)
		args = mw.clone(args)
		args.float	  = args.float and args.float:lower()
		args.width	  = tonumber(args.width) and args.width .. 'px' or args.width and args.width:lower()
		args.barwidth = tonumber(args.barwidth) and args.barwidth .. 'px' or args.barwidth and args.barwidth:lower()
		return cls(args)
	end,

	_sDefaultAlign = 'lrlr',
	_tDefaultAlign = {false, 'r', false, 'r'},

	_setAlign = function (obj, align)
		obj._alignClasses = {}
		for i, d in ipairs(obj._tDefaultAlign) do
			local a = align:sub(i,i)
			if a == 'l' then
				a = false
			elseif a == 'd' then
				a = d
			elseif a ~= 'c' and a ~= 'r' then
				error('unrecognized align[' .. i .. ']')
			end
			obj._alignClasses[i] = a and 'class=bb-' .. a
		end
	end,

	html = function (self)
		local output = {}

		local frame = mw.getCurrentFrame()
		output[1] = frame:extensionTag('templatestyles', '', {src=self._css}) .. '\n'
		output[2] = self.css and frame:extensionTag('templatestyles', '', {src=self.css}) .. '\n' or ''

		local class = 'barbox'
		if self.float == 'left' or self.float == 'right' then
			class = class .. ' t' .. self.float
		end

		output[3] =
			'<div class="' .. class .. '" style="background:' .. self.backgroundcolor ..
			'; border:' .. self.borderwidth .. 'px solid silver' ..
			(self.float == 'center' and '; margin:0 auto' or '') ..
			(self.width and '; width:' .. self.width or '') ..
			(self.style and '; ' .. self.style or '') .. '">\n' ..
				'{|' .. (self.lineheight and ' style="line-height:' .. self.lineheight .. '"' or '') .. '\n'

			output[4] = self.title and
				'|+ class=bb-default' .. (self.titlebar and ' style="background:' .. self.titlebar .. '"' or '') .. ' |\n' ..
				self.title .. '\n'
			or ''

			output[5] = '|- class=bb-default style="font-size:88%; min-height:4px"\n'
				if self._alignClasses then -- same as self.__class._alignClasses
					self._alignClasses = self._alignClasses
					self.__class._alignClasses = nil
				else
					self._setAlign(self, self._sDefaultAlign)
				end

				local attributes =
					not self.left2 and 'colspan=2' .. (self._alignClasses[1] and ' ' .. self._alignClasses[1] or '') or self._alignClasses[1]
				output[6] = '!' .. (attributes and attributes .. '|' or '') .. (self.left1 or ' ')
				output[7] = self.left2 and '!!' .. (self._alignClasses[2] and self._alignClasses[2] .. '|' or '') .. self.left2 or ''
				output[8] = '!!style="width:' .. self.barwidth .. '"| '
				attributes =
					not self.right2 and 'colspan=2' .. (self._alignClasses[4] and ' ' .. self._alignClasses[4] or '') or self._alignClasses[3]
				output[9] = '!!' .. (attributes and attributes .. '|' or '') .. (self.right1 or self.right2 and ' ' or '')
				output[10] = self.right2 and '!!' .. (self._alignClasses[4] and self._alignClasses[4] .. '|' or '') .. self.right2 or ''
			output[11] = '\n'

			output[12] = self.bars and self.bars .. '\n' or ''

			if self.caption then
				output[15] = '\n[[Category:Pages using bar box with deprecated caption parameter]]'
			else
				output[15] = ''
			end
			output[13] = self.footer and
				'|- class=bb-default\n| colspan=5 style="padding:5px 0" | ' .. -- <p> is created if \n precedes the footer
				self.footer .. '\n'
			or ''
		output[14] = '|}\n</div>'

		return table.concat(output)
	end,

	__tostring = function (self)
		return self.html()
	end,

	percent = function (args)
		local output = {}
		local percentage = (args[3] or '0') .. '%'

		output[1] = '|-' .. (args.bg and 'style="background:' .. args.bg .. '"' or '') .. '\n'
			output[2] = '|colspan=2 class=bb-min8|' .. (args[1] or ' ')
			output[3] = '||class=bb-b|'
				output[4] = '<div style="background:' .. (args[2] or 'gray') .. '; width:' .. percentage .. '">&#8203;</div>'
			output[5] = '||' .. (args.note and '' or 'colspan=2 class=bb-r|') .. (args[4] or percentage)
			output[6] = args.note and '||class=bb-r|' .. args.note or ''

		return table.concat(output)
	end,

	pixel = function (args)
		local output = {}
		local pixels = args[3] or '0'

		output[1] = '|-' .. (args.bg and 'style="background:' .. args.bg .. '"' or '') .. '\n'
			output[2] = '|colspan=2|' .. (args[1] or ' ')
			output[3] = '||class=bb-b|'
				output[4] = '<div style="background:' .. (args[2] or 'gray') .. '; width:' .. pixels .. 'px">&#8203;</div>'
			output[5] = '||class="bb-min3' .. (args.note and '"' or ' bb-r" colspan=2') .. '|' .. (args[5] or pixels .. (args[4] or ''))
			output[6] = args.note and '||class=bb-r|' .. args.note or ''

		return table.concat(output)
	end,

	stacked = function (cls, args)
		local output = {}

		output[1] = args.id and
			'|-class="mw-collapsible' .. (args.collapsed and ' mw-collapsed' or '') .. '" id=mw-customcollapsible-' .. args.id .. '\n'
		or '|-\n'
			if not cls._alignClasses then
				cls._setAlign(cls, args.align and args.align:lower() or cls._sDefaultAlign)
			end

			local attributes =
				not args.note1 and 'colspan=2' .. (cls._alignClasses[1] and ' ' .. cls._alignClasses[1] or '') or cls._alignClasses[1]
			output[2] = '|' .. (attributes and attributes .. '|' or '') .. (args[1] or ' ')
			output[3] = args.note1 and '||' .. (cls._alignClasses[2] and cls._alignClasses[2] .. '|' or '') .. args.note1 or ''
			output[4] = '||class=bb-b|'

				local len = 0 -- can't use #args because of [[Module:Arguments#Known limitations]]
				for k in pairs(args) do
					local idx = tonumber(k) or 0
					if idx > len then len = idx end
				end

				if args.bkgclasses then -- used when wikitext minimization is essential
					for i = 1, len-2 do
						local width, delim, title --is delim reset every cycle?
						width = args[i+2] or 0
						width = tonumber(('%.2f'):format(width))
						if width > 0 then
							if not delim then -- assuming title types are consistent
								delim = tonumber(args['title' .. i]) and '' or '"'
							end
							title = args['title' .. i] and ' title=' .. delim .. args['title' .. i] .. delim or ''
							output[#output+1] =
								'<div' .. title .. ' class=' .. args.bkgclasses[i] .. ' style=width:' .. width .. 'px></div>'
						end
					end
				else
					for i = 1, (len-2) / 2 do
						local width, title, background
						width = args[2*i + 2] or 0
						width = tonumber(('%.2f'):format(width))
						if width > 0 then
							title = args['title' .. i] and ' title="' .. args['title' .. i] .. '"' or ''
							background = args[2*i + 1] or 'gray'
							output[#output+1] =
								'<div' .. title .. ' style="background:' .. background .. ';width:' .. width .. 'px"></div>'
						end
					end
				end

				if #output == 4 then
					output[5] = ' '
				end

			attributes =
				not args.note2 and 'colspan=2' .. (cls._alignClasses[4] and ' ' .. cls._alignClasses[4] or '') or cls._alignClasses[3]
			output[#output+1] = '||' .. (attributes and attributes .. '|' or '') .. (args[2] or args.note2 and ' ' or '')
			output[#output+1] = args.note2 and '||' .. (cls._alignClasses[4] and cls._alignClasses[4] .. '|' or '') .. args.note2 or ''

		return table.concat(output)
	end,

	gap = function (args)
		local output = {}
		local height = tonumber(args.height) and args.height .. 'px' or args.height and args.height:lower() or '10px'

		output[1] = '|-\n'
			output[2] = '|colspan=5 style="height:' .. height .. '"|' .. (args[1] or '')

		return table.concat(output)
	end,

	__classmethods = {'create', 'stacked'},
	__staticmethods = {'_setAlign', 'percent', 'pixel', 'gap'},
	__slots = {'_alignClasses'}
})


local getArgs = require('Module:Arguments').getArgs

local p = {BarBox}

function p.box(frame)
	local args = getArgs(frame)
	local box = BarBox.create(args)
	return tostring(box)
end

function p.percent(frame)
	local args = getArgs(frame)
	return BarBox.percent(args)
end

function p.pixel(frame)
	local args = getArgs(frame)
	return BarBox.pixel(args)
end

function p.log(frame)
	local args = getArgs(frame)
	local outArgs = {[1] = args[2], [2] = args[3]}
	outArgs[3] = math.log((tonumber(args[4]) ~= nil) and (args[4] + 1) or 100)/
		math.log((tonumber(args[1]) ~= nil) and args[1] or 2)*30
	outArgs[5] = ((args[6] or '') ~= '') and args[6] or ((args[4] or '') .. (args[5] or ''))
	return BarBox.pixel(outArgs)
end

function p.stacked(frame)
	local yesno = require('Module:Yesno')
	local args = getArgs(frame, {
		valueFunc = function (key, value)
			if value then
				if key == 'collapsed' then
					return yesno(value)
				elseif key == 'bkgclasses' then
					return mw.text.jsonDecode(value) -- string to table
				end
				value = mw.text.trim(value)
				if value ~= '' then
					return value
				end
			end
			return nil
		end
	})
	return BarBox.stacked(args)
end

function p.gap(frame)
	local args = getArgs(frame)
	return BarBox.gap(args)
end

return p
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