Module:Navbox: Difference between revisions

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m Protected "Module:Navbox": High-risk Lua module ([Edit=Allow only autoconfirmed users] (indefinite) [Move=Allow only autoconfirmed users] (indefinite))
Line 9: Line 9:


local args
local args
local tableRowAdded = false
local border
local border
local listnums
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)
local function trim(s)
return (mw.ustring.gsub(s, "^%s*(.-)%s*$", "%1"))
-- 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 = '[[Category:Navbox orphans]]'
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
end


local function processItem(item, nowrapitems)
local function addNewline(s)
if item:sub(1, 2) == '{|' then
if s:match('^[*:;#]') or s:match('^{|') then
return '\n' .. s ..'\n'
-- Applying nowrap to lines in a table does not make sense.
else
-- Add newlines to compensate for trim of x in |parm=x in a template.
return s
return '\n' .. item ..'\n'
end
end
end
if nowrapitems == 'yes' then

local lines = {}
local function addTableRow(tbl)
for line in (item .. '\n'):gmatch('([^\n]*)\n') do
-- If any other rows have already been added, then we add a 2px gutter row.
local prefix, content = line:match('^([*:;#]+)%s*(.*)')
if tableRowAdded then
if prefix and not content:match('^<span class="nowrap">') then
tbl
line = prefix .. '<span class="nowrap">' .. content .. '</span>'
:tag('tr')
end
:css('height', '2px')
table.insert(lines, line)
:tag('td')
end
:attr('colspan',2)
item = table.concat(lines, '\n')
end
end

if item:match('^[*:;#]') then
tableRowAdded = true
return '\n' .. item ..'\n'

end
return item
return tbl:tag('tr')
end
end


local function renderNavBar(titleCell)
local function renderNavBar(titleCell)
-- Depending on the presence of the navbar and/or show/hide link, we may need to add a spacer div on the left
-- or right to keep the title centered.
local spacerSide = nil

if args.navbar == 'off' then
-- No navbar, and client wants no spacer, i.e. wants the title to be shifted to the left. If there's
-- also no show/hide link, then we need a spacer on the right to achieve the left shift.
if args.state == 'plain' then spacerSide = 'right' end
elseif args.navbar == 'plain' or (not args.name and mw.getCurrentFrame():getParent():getTitle():gsub('/sandbox$', '') == 'Template:Navbox') then
-- No navbar. Need a spacer on the left to balance out the width of the show/hide link.
if args.state ~= 'plain' then spacerSide = 'left' end
else
-- Will render navbar (or error message). If there's no show/hide link, need a spacer on the right
-- to balance out the width of the navbar.
if args.state == 'plain' then spacerSide = 'right' end


titleCell:wikitext(navbar{
if args.navbar ~= 'off' and args.navbar ~= 'plain' and not (not args.name and mw.getCurrentFrame():getParent():getTitle():gsub('/sandbox$', '') == 'Template:Navbox') then
args.name,
titleCell:wikitext(navbar{
mini = 1,
args.name,
fontstyle = (args.basestyle or '') .. ';' .. (args.titlestyle or '') .. ';background:none transparent;border:none;'
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; padding:0;'
end
})
end


-- Render the spacer div.
if spacerSide then
titleCell
:tag('span')
:css('float', spacerSide)
:css('width', '6em')
:wikitext('&nbsp;')
end
end
end


Line 95: Line 78:
--
--
local function renderTitleRow(tbl)
local function renderTitleRow(tbl)
if not args.title then return end
if not args.title then return end


local titleRow = tbl:tag('tr')
local titleRow = addTableRow(tbl)


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


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


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


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


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


renderNavBar(titleCell)
renderNavBar(titleCell)


titleCell
titleCell
:tag('div')
:tag('div')
:addClass(args.titleclass)
-- id for aria-labelledby attribute
:css('font-size', '110%')
:attr('id', mw.uri.anchorEncode(args.title))
:wikitext(addNewline(args.title))
:addClass(args.titleclass)
:css('font-size', '114%')
:css('margin', '0 4em')
:wikitext(processItem(args.title))
end
end


Line 147: Line 127:


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


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


addTableRow(tbl)
tbl:tag('tr')
:tag('td')
:tag('td')
:addClass('navbox-abovebelow')
:addClass('navbox-abovebelow')
:addClass(args.aboveclass)
:addClass(args.aboveclass)
:cssText(args.basestyle)
:cssText(args.basestyle)
:cssText(args.abovestyle)
:cssText(args.abovestyle)
:attr('colspan', getAboveBelowColspan())
:attr('colspan', getAboveBelowColspan())
:tag('div')
:tag('div')
:wikitext(addNewline(args.above))
-- id for aria-labelledby attribute, if no title
:attr('id', args.title and nil or mw.uri.anchorEncode(args.above))
:wikitext(processItem(args.above, args.nowrapitems))
end
end


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


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


Line 186: Line 164:
-- List rows
-- List rows
--
--
local function renderListRow(tbl, index, listnum)
local function renderListRow(tbl, listnum)
local row = tbl:tag('tr')
local row = addTableRow(tbl)


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


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


groupCell
-- id for aria-labelledby attribute, if lone group with no title or above
:attr('scope', 'row')
if listnum == 1 and not (args.title or args.above or args.group2) then
:addClass('navbox-group')
groupCell
:addClass(args.groupclass)
:attr('id', mw.uri.anchorEncode(args.group1))
:cssText(args.basestyle)
end


if args.groupwidth then
groupCell
groupCell:css('width', args.groupwidth)
:attr('scope', 'row')
end
:addClass('navbox-group')
:addClass(args.groupclass)
:cssText(args.basestyle)
:css('width', args.groupwidth or '1%') -- If groupwidth not specified, minimize width


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


local listCell = row:tag('td')
local listCell = row:tag('td')


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


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


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


local evenOdd
local listText = args['list' .. listnum]
if args.evenodd == 'swap' then
local oddEven = ODD_EVEN_MARKER
if isOdd then evenOdd = 'even' else evenOdd = 'odd' end
if listText:sub(1, 12) == '</div><table' then
else
-- Assume list text is for a subgroup navbox so no automatic striping for this row.
if isOdd then evenOdd = args.evenodd or 'odd' else evenOdd = args.evenodd or 'even' end
oddEven = listText:find('<th[^>]*"navbox%-title"') and RESTART_MARKER or 'odd'
end
end
listCell
:css('padding', '0px')
:cssText(args.liststyle)
:cssText(rowstyle)
:cssText(args['list' .. listnum .. 'style'])
:addClass('navbox-list')
:addClass('navbox-' .. oddEven)
:addClass(args.listclass)
:addClass(args['list' .. listnum .. 'class'])
:tag('div')
:css('padding', (index == 1 and args.list1padding) or args.listpadding or '0em 0.25em')
:wikitext(processItem(listText, args.nowrapitems))


listCell
if index == 1 and args.image then
:css('padding', '0px')
row
:cssText(args.liststyle)
:tag('td')
:cssText(rowstyle)
:addClass('navbox-image')
:cssText(args['list' .. listnum .. 'style'])
:addClass(args.imageclass)
:addClass('navbox-list')
:css('width', '1px') -- Minimize width
:addClass('navbox-' .. evenOdd)
:css('padding', '0px 0px 0px 2px')
:cssText(args.imagestyle)
:addClass(args.listclass)
:tag('div')
:attr('rowspan', #listnums)
:css('padding', (listnum == 1 and args.list1padding) or args.listpadding or '0em 0.25em')
:tag('div')
:wikitext(processItem(args.image))
:wikitext(addNewline(args['list' .. listnum]))

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


Line 285: Line 257:


local function needsHorizontalLists()
local function needsHorizontalLists()
if border == 'subgroup' or args.tracking == 'no' then
if border == 'child' or border == 'subgroup' or args.tracking == 'no' then return false end
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 listClasses = {'plainlist', 'hlist', 'hlist hnum', 'hlist hwrap', 'hlist vcard', 'vcard hlist', 'hlist vevent'}
local function hasBackgroundColors()
for _, key in ipairs({'titlestyle', 'groupstyle', 'basestyle', 'abovestyle', 'belowstyle'}) do
for i, cls in ipairs(listClasses) do
if args.listclass == cls or args.bodyclass == cls then
if tostring(args[key]):find('background', 1, true) then
return true
return false
end
end
end
end
end


return true
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
end


local function isIllegible()
local function hasBackgroundColors()
return mw.ustring.match(args.titlestyle or '','background') or mw.ustring.match(args.groupstyle or '','background') or mw.ustring.match(args.basestyle or '','background')
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
end


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


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


for _, cat in ipairs(getTrackingCategories()) do
for i, cat in ipairs(getTrackingCategories()) do
builder:wikitext('[[Category:' .. cat .. ']]')
builder:wikitext('[[Category:' .. cat .. ']]')
end
end
end
end


Line 349: Line 295:
--
--
local function renderMainTable()
local function renderMainTable()
local tbl = mw.html.create('table')
local tbl = mw.html.create('table')
:addClass('nowraplinks')
:addClass('nowraplinks')
:addClass(args.bodyclass)
:addClass(args.bodyclass)


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


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


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


return tbl
return tbl
end
end


function p._navbox(navboxArgs)
function p._navbox(navboxArgs)
args = navboxArgs
args = navboxArgs

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


border = trim(args.border or args[1] or '')
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)


-- render the main body of the navbox
border = mw.text.trim(args.border or args[1] or '')
local tbl = renderMainTable()
if border == 'child' then
border = 'subgroup'
end


-- render the main body of the navbox
-- render the appropriate wrapper around the navbox, depending on the border param
local tbl = renderMainTable()
local res = mw.html.create()
if border == 'none' then
res:node(tbl)
elseif border == 'subgroup' or border == 'child' 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 </div> to avoid the
-- padding being applied, and at the end add a <div> to balance out the parent's </div>
res
:wikitext('</div>') -- XXX: hack due to lack of unclosed support in mw.html.
:node(tbl)
:wikitext('<div>') -- XXX: hack due to lack of unclosed support in mw.html.
else
res
:tag('table')
:addClass('navbox')
:css('border-spacing', 0)
:cssText(args.bodystyle)
:cssText(args.style)
:tag('tr')
:tag('td')
:css('padding', '2px')
:node(tbl)
end


renderTrackingCategories(res)
-- 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)
-- aria-labelledby title, otherwise above, otherwise lone group
if args.title or args.above or (args.group1 and not args.group2) then
nav:attr('aria-labelledby', mw.uri.anchorEncode(args.title or args.above or args.group1))
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 </div> to avoid the
-- padding being applied, and at the end add a <div> to balance out the parent's </div>
res
:wikitext('</div>')
:node(tbl)
:wikitext('<div>')
else
local nav = res:tag('div')
:attr('role', 'navigation')
:addClass('navbox')
:addClass(args.navboxclass)
:cssText(args.bodystyle)
:cssText(args.style)
:css('padding', '3px')
:node(tbl)
-- aria-labelledby title, otherwise above, otherwise lone group
if args.title or args.above or (args.group1 and not args.group2) then
nav:attr('aria-labelledby', mw.uri.anchorEncode(args.title or args.above or args.group1))
else
nav:attr('aria-label', 'Navbox')
end
end


return tostring(res)
if (args.nocat or 'false'):lower() == 'false' then
renderTrackingCategories(res)
end
return striped(tostring(res))
end
end


function p.navbox(frame)
function p.navbox(frame)
if not getArgs then
if not getArgs then
getArgs = require('Module:Arguments').getArgs
getArgs = require('Module:Arguments').getArgs
end
end
args = getArgs(frame, {wrappers = {'Template:Navbox', 'Template:Navbox subgroup'}})
args = getArgs(frame, {wrappers = 'Template:Navbox'})
if frame.args.border then
-- This allows Template:Navbox_subgroup to use {{#invoke:Navbox|navbox|border=...}}.
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.
-- Read the arguments in the order they'll be output in, to make references number in the right order.
local _
local _
_ = args.title
_ = args.title
_ = args.above
_ = args.above
for i = 1, 20 do
for i = 1, 20 do
_ = args["group" .. tostring(i)]
_ = args["group" .. tostring(i)]
_ = args["list" .. tostring(i)]
_ = args["list" .. tostring(i)]
end
end
_ = args.below
_ = args.below


return p._navbox(args)
return p._navbox(args)
end
end



Revision as of 01:08, 7 November 2019

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

--
-- This module implements {{Navbox}}
--

local p = {}

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

local args
local tableRowAdded = false
local border
local listnums = {}

local function trim(s)
    return (mw.ustring.gsub(s, "^%s*(.-)%s*$", "%1"))
end

local function addNewline(s)
    if s:match('^[*:;#]') or s:match('^{|') then
        return '\n' .. s ..'\n'
    else
        return s
    end
end

local function addTableRow(tbl)
    -- If any other rows have already been added, then we add a 2px gutter row.
    if tableRowAdded then
        tbl
            :tag('tr')
                :css('height', '2px')
                :tag('td')
                    :attr('colspan',2)
    end

    tableRowAdded = true

    return tbl:tag('tr')
end

local function renderNavBar(titleCell)
    -- Depending on the presence of the navbar and/or show/hide link, we may need to add a spacer div on the left
    -- or right to keep the title centered.
    local spacerSide = nil

    if args.navbar == 'off' then
        -- No navbar, and client wants no spacer, i.e. wants the title to be shifted to the left. If there's
        -- also no show/hide link, then we need a spacer on the right to achieve the left shift.
        if args.state == 'plain' then spacerSide = 'right' end
    elseif args.navbar == 'plain' or (not args.name and mw.getCurrentFrame():getParent():getTitle():gsub('/sandbox$', '') == 'Template:Navbox') then
        -- No navbar. Need a spacer on the left to balance out the width of the show/hide link.
        if args.state ~= 'plain' then spacerSide = 'left' end
    else
        -- Will render navbar (or error message). If there's no show/hide link, need a spacer on the right
        -- to balance out the width of the navbar.
        if args.state == 'plain' then spacerSide = 'right' end

        titleCell:wikitext(navbar{
            args.name,
            mini = 1,
            fontstyle = (args.basestyle or '') .. ';' .. (args.titlestyle or '') ..  ';background:none transparent;border:none;'
        })
    end

    -- Render the spacer div.
    if spacerSide then
        titleCell
            :tag('span')
                :css('float', spacerSide)
                :css('width', '6em')
                :wikitext('&nbsp;')
    end
end

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

    local titleRow = addTableRow(tbl)

    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)

    renderNavBar(titleCell)

    titleCell
         :tag('div')
             :addClass(args.titleclass)
             :css('font-size', '110%')
             :wikitext(addNewline(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

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

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

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

--
--   List rows
--
local function renderListRow(tbl, listnum)
    local row = addTableRow(tbl)

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

        if args.groupwidth then
            groupCell:css('width', args.groupwidth)
        end

        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 isOdd = (listnum % 2) == 1
    local rowstyle = args.evenstyle
    if isOdd then rowstyle = args.oddstyle end

    local evenOdd
    if args.evenodd == 'swap' then
        if isOdd then evenOdd = 'even' else evenOdd = 'odd' end
    else
        if isOdd then evenOdd = args.evenodd or 'odd' else evenOdd = args.evenodd or 'even' end
    end

    listCell
        :css('padding', '0px')
        :cssText(args.liststyle)
        :cssText(rowstyle)
        :cssText(args['list' .. listnum .. 'style'])
        :addClass('navbox-list')
        :addClass('navbox-' .. evenOdd)
        :addClass(args.listclass)
        :tag('div')
            :css('padding', (listnum == 1 and args.list1padding) or args.listpadding or '0em 0.25em')
            :wikitext(addNewline(args['list' .. listnum]))

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


--
--   Tracking categories
--

local function needsHorizontalLists()
    if border == 'child' or border == 'subgroup'  or args.tracking == 'no' then return false end

    local listClasses = {'plainlist', 'hlist', 'hlist hnum', 'hlist hwrap', 'hlist vcard', 'vcard hlist', 'hlist vevent'}
    for i, cls in ipairs(listClasses) do
        if args.listclass == cls or args.bodyclass == cls then
            return false
        end
    end

    return true
end

local function hasBackgroundColors()
    return mw.ustring.match(args.titlestyle or '','background') or mw.ustring.match(args.groupstyle or '','background') or mw.ustring.match(args.basestyle or '','background')
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
    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 i, cat in ipairs(getTrackingCategories()) do
        builder:wikitext('[[Category:' .. cat .. ']]')
    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
    	local state = args.state;
    	if state and state == 'collapsed' then
    		state = 'mw-collapsed'
    	end
        tbl
            :addClass('mw-collapsible')
            :addClass(state or 'autocollapse')
    end

    tbl:css('border-spacing', 0)
    if border == 'subgroup' or border == 'child' or border == 'none' then
        tbl
            :addClass('navbox-subgroup')
            :cssText(args.bodystyle)
            :cssText(args.style)
    else -- regular navobx - 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, listnum)
    end
    renderBelowRow(tbl)

    return tbl
end

function p._navbox(navboxArgs)
    args = navboxArgs

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

    border = trim(args.border or args[1] or '')

    -- 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
        res:node(tbl)
    elseif border == 'subgroup' or border == 'child' 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 </div> to avoid the
        -- padding being applied, and at the end add a <div> to balance out the parent's </div>
        res
            :wikitext('</div>') -- XXX: hack due to lack of unclosed support in mw.html.
            :node(tbl)
            :wikitext('<div>') -- XXX: hack due to lack of unclosed support in mw.html.
    else
        res
            :tag('table')
                :addClass('navbox')
                :css('border-spacing', 0)
                :cssText(args.bodystyle)
                :cssText(args.style)
                :tag('tr')
                    :tag('td')
                        :css('padding', '2px')
                        :node(tbl)
    end

    renderTrackingCategories(res)

    return tostring(res)
end

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

    -- 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