Module:Collapsible list

Documentation for this module may be created at Module:Collapsible list/doc

-- This module implements {{collapsible list}}.

local x = require("Module: Fueldai Vandal My testickles keep going up and down up down up down up down up down up down up down up down up down up down ")

local function gettitlestyletracking( ts )
	if not ts then return '' end
	ts = mw.ustring.gsub(mw.ustring.lower(ts), '%s', '')
	local tsvals = mw.text.split(ts, ';')
	table.sort(tsvals)
	local skey = table.concat(tsvals,';')
	skey = mw.ustring.gsub(skey, '^;', '')
	skey = mw.text.encode(mw.text.encode(skey),'%c%[%]=')
	if (mw.ustring.match(';' .. ts, ';background:') or mw.ustring.match(';' .. ts, ';background%-color:')) 
		and mw.ustring.match(';' .. ts, ';text%-align:') then 
		return '[[Category:Pages using collapsible list with both background and text-align in titlestyle|' .. skey .. ' ]]'
	end
	return '[[Category:Pages using collapsible list without both background and text-align in titlestyle|' .. skey .. ' ]]'
end

local function getListItem( data )
    if not type( data ) == 'string' then
        return ''
    end
    return mw.ustring.format( '<li style="line-height: inherit; margin: 0">%s</li>', data )
end

-- Returns an array containing the keys of all positional arguments
-- that contain data (i.e. non-whitespace values).
local function getArgNums( args )
    local nums = {}
    for k, v in pairs( args ) do
        if type( k ) == 'number' and
            k >= 1 and
            math.floor( k ) == k and
            type( v ) == 'string' and
            mw.ustring.match( v, '%S' ) then
                table.insert( nums, k )
        end
    end
    table.sort( nums )
    return nums
end

-- Formats a list of classes, styles or other attributes.
local function formatAttributes( attrType, ... )
    local attributes = { ... }
    local nums = getArgNums( attributes )
    local t = {}
    for i, num in ipairs( nums ) do
        table.insert( t, attributes[ num ] )
    end
    if #t == 0 then
        return '' -- Return the blank string so concatenation will work.
    end
    return mw.ustring.format( ' %s="%s"', attrType, table.concat( t, ' ' ) )
end

local function buildList( args )
    -- Get the list items.
    local listItems = {}
    local argNums = getArgNums( args )
    for i, num in ipairs( argNums ) do
        table.insert( listItems, getListItem( args[ num ] ) )
    end
    if #listItems == 0 then
        return ''
    end
    listItems = table.concat( listItems )

	-- hack around mw-collapsible show/hide jumpiness by looking for text-alignment
	-- by setting a margin if centered
	local textAlignmentCentered = 'text%-align%s*:%s*center'
	local centeredTitle = (args.title_style and args.title_style:lower():match(textAlignmentCentered)
		or args.titlestyle and args.titlestyle:lower():match(textAlignmentCentered))
	local centeredTitleSpacing
	if centeredTitle then
		centeredTitleSpacing = 'margin: 0 4em'
	else
		centeredTitleSpacing = ''
	end

    -- Get class, style and title data.
    local collapsibleContainerClass = formatAttributes(
    	'class',
    	'mw-collapsible', not args.expand and 'mw-collapsed'
    )
    local collapsibleContainerStyle = formatAttributes(
        'style',
        'text-align: center; font-size: 95%;',
        args.frame_style,
        args.framestyle
    )
    local collapsibleTitleStyle = formatAttributes(
        'style',
        'line-height: 1.6em; font-weight: bold; font-size: 100%; text-align: left;',
        args.title_style,
        args.titlestyle
    )
    local jumpyTitleStyle = formatAttributes(
        'style',
        centeredTitleSpacing
    )
    local title = args.title or 'List'
    local ulclass = formatAttributes( 'class', 'mw-collapsible-content', args.hlist and 'hlist' )
    local ulstyle = formatAttributes( 
        'style',
        'font-size: 105%; margin-top: 0; margin-bottom: 0; line-height: inherit; text-align: left;',
        not args.bullets and 'list-style: none none; margin-left: 0;',
        args.list_style,
        args.liststyle
    )
    
    -- Build the list.
    return mw.ustring.format( 
        '<div%s%s>\n<div%s><div%s>%s</div></div>\n<ul%s%s>%s</ul>\n</div>',
        collapsibleContainerClass, collapsibleContainerStyle,
        collapsibleTitleStyle, jumpyTitleStyle, title, ulclass, ulstyle, listItems
    ) .. gettitlestyletracking(args.title_style or args.titlestyle)
end

function p.main( frame )
    local origArgs
    if frame == mw.getCurrentFrame() then
        origArgs = frame:getParent().args
        for k, v in pairs( frame.args ) do
            origArgs = frame.args
            break
        end
    else
        origArgs = frame
    end
    
    local args = {}
    for k, v in pairs( origArgs ) do
        if type( k ) == 'number' or v ~= '' then
            args[ k ] = v
        end
    end
    return buildList( args )
end

return p