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-- This module implements


local p = {}

local navbar = require('Module:Navbar')._navbar local getArgs -- lazily initialized

local args local border local listnums = {} local ODD_EVEN_MARKER = '\127_ODDEVEN_\127' local RESTART_MARKER = '\127_ODDEVEN0_\127' local REGEX_MARKER = '\127_ODDEVEN(%d?)_\127'

local function striped(wikitext) -- Return wikitext with markers replaced for odd/even striping. -- Child (subgroup) navboxes are flagged with a category that is removed -- by parent navboxes. The result is that the category shows all pages -- where a child navbox is not contained in a parent navbox. local orphanCat = if border == 'subgroup' and args.orphan ~= 'yes' then -- No change; striping occurs in outermost navbox. return wikitext .. orphanCat end local first, second = 'odd', 'even' if args.evenodd then if args.evenodd == 'swap' then first, second = second, first else first = args.evenodd second = first end end local changer if first == second then changer = first else local index = 0 changer = function (code) if code == '0' then -- Current occurrence is for a group before a nested table. -- Set it to first as a valid although pointless class. -- The next occurrence will be the first row after a title -- in a subgroup and will also be first. index = 0 return first end index = index + 1 return index % 2 == 1 and first or second end end local regex = orphanCat:gsub('([%[%]])', '%%%1') return (wikitext:gsub(regex, ):gsub(REGEX_MARKER, changer)) -- () omits gsub count end

local function processItem(item, nowrapitems) if item:sub(1, 2) == '{|' then -- Applying nowrap to lines in a table does not make sense. -- Add newlines to compensate for trim of x in |parm=x in a template. return '\n' .. item ..'\n' end if nowrapitems == 'yes' then local lines = {} for line in (item .. '\n'):gmatch('([^\n]*)\n') do local prefix, content = line:match('^([*:;#]+)%s*(.*)') if prefix and not content:match('^') then line = prefix .. '' .. content .. '' end table.insert(lines, line) end item = table.concat(lines, '\n') end if item:match('^[*:;#]') then return '\n' .. item ..'\n' end return item end

local function renderNavBar(titleCell)

if args.navbar ~= 'off' and args.navbar ~= 'plain' and not (not and mw.getCurrentFrame():getParent():getTitle():gsub('/sandbox$', ) == 'Template:Navbox') then titleCell:wikitext(navbar{, mini = 1, fontstyle = (args.basestyle or ) .. ';' .. (args.titlestyle or ) .. ';background:none transparent;border:none;-moz-box-shadow:none;-webkit-box-shadow:none;box-shadow:none;' }) end


-- -- Title row -- local function renderTitleRow(tbl) if not args.title then return end

local titleRow = tbl:tag('tr')

if args.titlegroup then titleRow :tag('th') :attr('scope', 'row') :addClass('navbox-group') :addClass(args.titlegroupclass) :cssText(args.basestyle) :cssText(args.groupstyle) :cssText(args.titlegroupstyle) :wikitext(args.titlegroup) end

local titleCell = titleRow:tag('th'):attr('scope', 'col')

if args.titlegroup then titleCell :css('border-left', '2px solid #fdfdfd') :css('width', '100%') end

local titleColspan = 2 if args.imageleft then titleColspan = titleColspan + 1 end if args.image then titleColspan = titleColspan + 1 end if args.titlegroup then titleColspan = titleColspan - 1 end

titleCell :cssText(args.basestyle) :cssText(args.titlestyle) :addClass('navbox-title') :attr('colspan', titleColspan)


titleCell :tag('div') :attr('id', mw.uri.anchorEncode(args.title)) :addClass(args.titleclass) :css('font-size', '114%') :css('margin', '0 4em') :wikitext(processItem(args.title)) end

-- -- Above/Below rows --

local function getAboveBelowColspan() local ret = 2 if args.imageleft then ret = ret + 1 end if args.image then ret = ret + 1 end return ret end

local function renderAboveRow(tbl) if not args.above then return end

tbl:tag('tr') :tag('td') :addClass('navbox-abovebelow') :addClass(args.aboveclass) :cssText(args.basestyle) :cssText(args.abovestyle) :attr('colspan', getAboveBelowColspan()) :tag('div') :wikitext(processItem(args.above, args.nowrapitems)) end

local function renderBelowRow(tbl) if not args.below then return end

tbl:tag('tr') :tag('td') :addClass('navbox-abovebelow') :addClass(args.belowclass) :cssText(args.basestyle) :cssText(args.belowstyle) :attr('colspan', getAboveBelowColspan()) :tag('div') :wikitext(processItem(args.below, args.nowrapitems)) end

-- -- List rows -- local function renderListRow(tbl, index, listnum) local row = tbl:tag('tr')

if index == 1 and args.imageleft then row :tag('td') :addClass('navbox-image') :addClass(args.imageclass) :css('width', '1px') -- Minimize width :css('padding', '0px 2px 0px 0px') :cssText(args.imageleftstyle) :attr('rowspan', #listnums) :tag('div') :wikitext(processItem(args.imageleft)) end

if args['group' .. listnum] then local groupCell = row:tag('th')

groupCell :attr('scope', 'row') :addClass('navbox-group') :addClass(args.groupclass) :cssText(args.basestyle)

           :css('width', args.groupwidth or '1%') -- If groupwidth not specified, minimize width

groupCell :cssText(args.groupstyle) :cssText(args['group' .. listnum .. 'style']) :wikitext(args['group' .. listnum]) end

local listCell = row:tag('td')

if args['group' .. listnum] then listCell :css('text-align', 'left') :css('border-left-width', '2px') :css('border-left-style', 'solid') else listCell:attr('colspan', 2) end

if not args.groupwidth then listCell:css('width', '100%') end

local rowstyle -- usually nil so cssText(rowstyle) usually adds nothing if index % 2 == 1 then rowstyle = args.oddstyle else rowstyle = args.evenstyle end

local listText = args['list' .. listnum] local oddEven = ODD_EVEN_MARKER

if listText:sub(1, 12) == '<table' then

-- Assume list text is for a subgroup navbox so no automatic striping for this row. oddEven = listText:find('<th[^>]*"navbox%-title"') and RESTART_MARKER or 'odd' end listCell :css('padding', '0px') :cssText(args.liststyle) :cssText(rowstyle) :cssText(args['list' .. listnum .. 'style']) :addClass('navbox-list') :addClass('navbox-' .. oddEven) :addClass(args.listclass) :tag('div') :css('padding', (index == 1 and args.list1padding) or args.listpadding or '0em 0.25em') :wikitext(processItem(listText, args.nowrapitems))

if index == 1 and args.image then row :tag('td') :addClass('navbox-image') :addClass(args.imageclass) :css('width', '1px') -- Minimize width :css('padding', '0px 0px 0px 2px') :cssText(args.imagestyle) :attr('rowspan', #listnums) :tag('div') :wikitext(processItem(args.image)) end end

-- -- Tracking categories --

local function needsHorizontalLists() if border == 'subgroup' or args.tracking == 'no' then return false end local listClasses = { ['plainlist'] = true, ['hlist'] = true, ['hlist hnum'] = true, ['hlist hwrap'] = true, ['hlist vcard'] = true, ['vcard hlist'] = true, ['hlist vevent'] = true, } return not (listClasses[args.listclass] or listClasses[args.bodyclass]) end

local function hasBackgroundColors() for _, key in ipairs({'titlestyle', 'groupstyle', 'basestyle', 'abovestyle', 'belowstyle'}) do if tostring(args[key]):find('background', 1, true) then return true end end end

local function hasBorders() for _, key in ipairs({'groupstyle', 'basestyle', 'abovestyle', 'belowstyle'}) do if tostring(args[key]):find('border', 1, true) then return true end end end

local function isIllegible() local styleratio = require('Module:Color contrast')._styleratio

for key, style in pairs(args) do if tostring(key):match("style$") then if styleratio{mw.text.unstripNoWiki(style)} < 4.5 then return true end end end return false end

local function getTrackingCategories() local cats = {} if needsHorizontalLists() then table.insert(cats, 'Navigational boxes without horizontal lists') end if hasBackgroundColors() then table.insert(cats, 'Navboxes using background colours') end if isIllegible() then table.insert(cats, 'Potentially illegible navboxes') end if hasBorders() then table.insert(cats, 'Navboxes using borders') end return cats end

local function renderTrackingCategories(builder) local title = mw.title.getCurrentTitle() if title.namespace ~= 10 then return end -- not in template space local subpage = title.subpageText if subpage == 'doc' or subpage == 'sandbox' or subpage == 'testcases' then return end

for _, cat in ipairs(getTrackingCategories()) do builder:wikitext() end end

-- -- Main navbox tables -- local function renderMainTable() local tbl = mw.html.create('table') :addClass('nowraplinks') :addClass(args.bodyclass)

if args.title and (args.state ~= 'plain' and args.state ~= 'off') then tbl :addClass('collapsible') :addClass(args.state or 'autocollapse') end

tbl:css('border-spacing', 0) if border == 'subgroup' or border == 'none' then tbl :addClass('navbox-subgroup') :cssText(args.bodystyle) :cssText( else -- regular navbox - bodystyle and style will be applied to the wrapper table tbl :addClass('navbox-inner') :css('background', 'transparent') :css('color', 'inherit') end tbl:cssText(args.innerstyle)

renderTitleRow(tbl) renderAboveRow(tbl) for i, listnum in ipairs(listnums) do renderListRow(tbl, i, listnum) end renderBelowRow(tbl)

return tbl end

function p._navbox(navboxArgs) args = navboxArgs

for k, _ in pairs(args) do if type(k) == 'string' then local listnum = k:match('^list(%d+)$') if listnum then table.insert(listnums, tonumber(listnum)) end end end table.sort(listnums)

border = mw.text.trim(args.border or args[1] or ) if border == 'child' then border = 'subgroup' end

-- render the main body of the navbox local tbl = renderMainTable()

-- render the appropriate wrapper around the navbox, depending on the border param local res = mw.html.create() if border == 'none' then local nav = res:tag('div') :attr('role', 'navigation') :node(tbl) if args.title then nav:attr('aria-labelledby', mw.uri.anchorEncode(args.title)) else nav:attr('aria-label', 'Navbox') end elseif border == 'subgroup' then -- We assume that this navbox is being rendered in a list cell of a parent navbox, and is

-- therefore inside a div with padding:0em 0.25em. We start with a to avoid the -- padding being applied, and at the end add a

to balance out the parent's






else local nav = res:tag('div') :attr('role', 'navigation') :addClass('navbox') :cssText(args.bodystyle) :cssText( :css('padding', '3px') :node(tbl) if args.title then nav:attr('aria-labelledby', mw.uri.anchorEncode(args.title)) else nav:attr('aria-label', 'Navbox') end end


return striped(tostring(res)) end

function p.navbox(frame) if not getArgs then getArgs = require('Module:Arguments').getArgs end args = getArgs(frame, {wrappers = {'Template:Navbox', 'Template:Navbox subgroup'}}) if frame.args.border then

-- This allows Template:Navbox_subgroup to use .

args.border = frame.args.border end

-- Read the arguments in the order they'll be output in, to make references number in the right order. local _ _ = args.title _ = args.above for i = 1, 20 do _ = args["group" .. tostring(i)] _ = args["list" .. tostring(i)] end _ = args.below

return p._navbox(args) end

return p