Module:Navbox

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--

-- This module implements

--

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(' ')
   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', '114%')
            :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 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
   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()
   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 == '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 to avoid the -- padding being applied, and at the end add a

to balance out the parent's
       res

:wikitext('') -- XXX: hack due to lack of unclosed support in mw.html.

           :node(tbl)

:wikitext('

') -- 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