વિભાગ:Navbox

--
-- 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 args.name and mw.getCurrentFrame():getParent():getTitle():gsub('/sandbox$', *) == 'Template:Navbox') then*
 titleCell:wikitext(navbar{
 args.name,
 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

--
-- 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)

 renderNavBar(titleCell)

 titleCell
 :tag('div')
 -- id for aria-labelledby attribute
 :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')
 -- 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

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')

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

 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(args.style)
 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)
 -- 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 to avoid the
 -- padding being applied, and at the end add a

 to balance out the parent's
 res

 :wikitext('')

 :node(tbl)

 :wikitext('

')
 else
 local nav = res:tag('div')
 :attr('role', 'navigation')
 :addClass('navbox')
 :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

 if (args.nocat or 'false'):lower() == 'false' then
 renderTrackingCategories(res)
 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 **Script error: No such module "Navbox".**.
 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