Difference between revisions of "Module:Message box"

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-- This is a meta-module for producing message box templates, including {{mbox}}, {{ambox}}, {{imbox}}, {{tmbox}}, {{ombox}}, {{cmbox}} and {{fmbox}}.
+
-- This is a meta-module for producing message box templates, including
 +
-- {{mbox}}, {{ambox}}, {{imbox}}, {{tmbox}}, {{ombox}}, {{cmbox}} and {{fmbox}}.
  
local htmlBuilder = require('Module:HtmlBuilder')
+
-- Load necessary modules.
local nsDetect = require('Module:Namespace detect')
+
require('Module:No globals')
local categoryHandler = require('Module:Category handler').main
+
local getArgs
 +
local categoryHandler = require('Module:Category handler')._main
 
local yesno = require('Module:Yesno')
 
local yesno = require('Module:Yesno')
  
local p = {}
+
-- Get a language object for formatDate and ucfirst.
 +
local lang = mw.language.getContentLanguage()
  
local function getTitleObject(page)
+
--------------------------------------------------------------------------------
    if type(page) == 'string' then
+
-- Helper functions
        -- Get the title object, passing the function through pcall  
+
--------------------------------------------------------------------------------
        -- in case we are over the expensive function count limit.
+
 
        local success
+
local function getTitleObject(...)
        success, page = pcall(mw.title.new, page)
+
-- Get the title object, passing the function through pcall
        if not success then
+
-- in case we are over the expensive function count limit.
            page = nil
+
local success, title = pcall(mw.title.new, ...)
        end
+
if success then
    end
+
return title
    return page
+
end
 +
end
 +
 
 +
local function union(t1, t2)
 +
-- Returns the union of two arrays.
 +
local vals = {}
 +
for i, v in ipairs(t1) do
 +
vals[v] = true
 +
end
 +
for i, v in ipairs(t2) do
 +
vals[v] = true
 +
end
 +
local ret = {}
 +
for k in pairs(vals) do
 +
table.insert(ret, k)
 +
end
 +
table.sort(ret)
 +
return ret
 +
end
 +
 
 +
local function getArgNums(args, prefix)
 +
local nums = {}
 +
for k, v in pairs(args) do
 +
local num = mw.ustring.match(tostring(k), '^' .. prefix .. '([1-9]%d*)$')
 +
if num then
 +
table.insert(nums, tonumber(num))
 +
end
 +
end
 +
table.sort(nums)
 +
return nums
 
end
 
end
  
local function presentButBlank(s)
+
--------------------------------------------------------------------------------
    if type(s) ~= 'string' then return end
+
-- Box class definition
    if s and not mw.ustring.find(s, '%S') then
+
--------------------------------------------------------------------------------
        return true
+
 
    else
+
local MessageBox = {}
        return false
+
MessageBox.__index = MessageBox
    end
+
 
 +
function MessageBox.new(boxType, args, cfg)
 +
args = args or {}
 +
local obj = {}
 +
 
 +
-- Set the title object and the namespace.
 +
obj.title = getTitleObject(args.page) or mw.title.getCurrentTitle()
 +
 
 +
-- Set the config for our box type.
 +
obj.cfg = cfg[boxType]
 +
if not obj.cfg then
 +
local ns = obj.title.namespace
 +
-- boxType is "mbox" or invalid input
 +
if ns == 0 then
 +
obj.cfg = cfg.ambox -- main namespace
 +
elseif ns == 6 then
 +
obj.cfg = cfg.imbox -- file namespace
 +
elseif ns == 14 then
 +
obj.cfg = cfg.cmbox -- category namespace
 +
else
 +
local nsTable = mw.site.namespaces[ns]
 +
if nsTable and nsTable.isTalk then
 +
obj.cfg = cfg.tmbox -- any talk namespace
 +
else
 +
obj.cfg = cfg.ombox -- other namespaces or invalid input
 +
end
 +
end
 +
end
 +
 
 +
-- Set the arguments, and remove all blank arguments except for the ones
 +
-- listed in cfg.allowBlankParams.
 +
do
 +
local newArgs = {}
 +
for k, v in pairs(args) do
 +
if v ~= '' then
 +
newArgs[k] = v
 +
end
 +
end
 +
for i, param in ipairs(obj.cfg.allowBlankParams or {}) do
 +
newArgs[param] = args[param]
 +
end
 +
obj.args = newArgs
 +
end
 +
 
 +
-- Define internal data structure.
 +
obj.categories = {}
 +
obj.classes = {}
 +
 
 +
return setmetatable(obj, MessageBox)
 
end
 
end
  
local function formatCategory(cat, date, all)
+
function MessageBox:addCat(ns, cat, sort)
    local ret = {}
+
if not cat then
    cat = type(cat) == 'string' and cat
+
return nil
    date = type(date) == 'string' and date
+
end
    all = type(all) == 'string' and all
+
if sort then
    local preposition = 'from'
+
cat = string.format('[[Category:%s|%s]]', cat, sort)
    if cat and date then
+
else
        local catTitle = mw.ustring.format('Category:%s %s %s', cat, preposition, date)
+
cat = string.format('[[Category:%s]]', cat)
        table.insert(ret, mw.ustring.format('[[%s]]', catTitle))
+
end
        catTitle = getTitleObject(catTitle)
+
self.categories[ns] = self.categories[ns] or {}
        if not catTitle or not catTitle.exists then
+
table.insert(self.categories[ns], cat)
            table.insert(ret, '[[Category:Articles with invalid date parameter in template]]')
 
        end
 
    elseif cat and not date then
 
        table.insert(ret, mw.ustring.format('[[Category:%s]]', cat))
 
    end
 
    if all then
 
        table.insert(ret, mw.ustring.format('[[Category:%s]]', all))
 
    end
 
    return table.concat(ret)
 
 
end
 
end
  
local function union(t1, t2)
+
function MessageBox:addClass(class)
    -- Returns the union of two arrays.
+
if not class then
    local vals = {}
+
return nil
    for i, v in ipairs(t1) do
+
end
        vals[v] = true
+
table.insert(self.classes, class)
    end
 
    for i, v in ipairs(t2) do
 
        vals[v] = true
 
    end
 
    local ret = {}
 
    for k, v in pairs(vals) do
 
        table.insert(ret, k)
 
    end
 
    return ret
 
 
end
 
end
  
local function getArgNums(args, prefix)
+
function MessageBox:setParameters()
    local nums = {}
+
local args = self.args
    for k, v in pairs(args) do
+
local cfg = self.cfg
        local num = mw.ustring.match(tostring(k), '^' .. prefix .. '([1-9]%d*)$')
+
 
        if num then
+
-- Get type data.
            table.insert(nums, tonumber(num))
+
self.type = args.type
        end
+
local typeData = cfg.types[self.type]
    end
+
self.invalidTypeError = cfg.showInvalidTypeError
    table.sort(nums)
+
and self.type
    return nums
+
and not typeData
 +
typeData = typeData or cfg.types[cfg.default]
 +
self.typeClass = typeData.class
 +
self.typeImage = typeData.image
 +
 
 +
-- Find if the box has been wrongly substituted.
 +
self.isSubstituted = cfg.substCheck and args.subst == 'SUBST'
 +
 
 +
-- Find whether we are using a small message box.
 +
self.isSmall = cfg.allowSmall and (
 +
cfg.smallParam and args.small == cfg.smallParam
 +
or not cfg.smallParam and yesno(args.small)
 +
)
 +
 
 +
-- Add attributes, classes and styles.
 +
self.id = args.id
 +
self:addClass(
 +
cfg.usePlainlinksParam and yesno(args.plainlinks or true) and 'plainlinks'
 +
)
 +
for _, class in ipairs(cfg.classes or {}) do
 +
self:addClass(class)
 +
end
 +
if self.isSmall then
 +
self:addClass(cfg.smallClass or 'mbox-small')
 +
end
 +
self:addClass(self.typeClass)
 +
self:addClass(args.class)
 +
self.style = args.style
 +
self.attrs = args.attrs
 +
 
 +
-- Set text style.
 +
self.textstyle = args.textstyle
 +
 
 +
-- Find if we are on the template page or not. This functionality is only
 +
-- used if useCollapsibleTextFields is set, or if both cfg.templateCategory
 +
-- and cfg.templateCategoryRequireName are set.
 +
self.useCollapsibleTextFields = cfg.useCollapsibleTextFields
 +
if self.useCollapsibleTextFields
 +
or cfg.templateCategory
 +
and cfg.templateCategoryRequireName
 +
then
 +
self.name = args.name
 +
if self.name then
 +
local templateName = mw.ustring.match(
 +
self.name,
 +
'^[tT][eE][mM][pP][lL][aA][tT][eE][%s_]*:[%s_]*(.*)$'
 +
) or self.name
 +
templateName = 'Template:' .. templateName
 +
self.templateTitle = getTitleObject(templateName)
 +
end
 +
self.isTemplatePage = self.templateTitle
 +
and mw.title.equals(self.title, self.templateTitle)
 +
end
 +
 
 +
-- Process data for collapsible text fields. At the moment these are only
 +
-- used in {{ambox}}.
 +
if self.useCollapsibleTextFields then
 +
-- Get the self.issue value.
 +
if self.isSmall and args.smalltext then
 +
self.issue = args.smalltext
 +
else
 +
local sect
 +
if args.sect == '' then
 +
sect = 'This ' .. (cfg.sectionDefault or 'page')
 +
elseif type(args.sect) == 'string' then
 +
sect = 'This ' .. args.sect
 +
end
 +
local issue = args.issue
 +
issue = type(issue) == 'string' and issue ~= '' and issue or nil
 +
local text = args.text
 +
text = type(text) == 'string' and text or nil
 +
local issues = {}
 +
table.insert(issues, sect)
 +
table.insert(issues, issue)
 +
table.insert(issues, text)
 +
self.issue = table.concat(issues, ' ')
 +
end
 +
 
 +
-- Get the self.talk value.
 +
local talk = args.talk
 +
-- Show talk links on the template page or template subpages if the talk
 +
-- parameter is blank.
 +
if talk == ''
 +
and self.templateTitle
 +
and (
 +
mw.title.equals(self.templateTitle, self.title)
 +
or self.title:isSubpageOf(self.templateTitle)
 +
)
 +
then
 +
talk = '#'
 +
elseif talk == '' then
 +
talk = nil
 +
end
 +
if talk then
 +
-- If the talk value is a talk page, make a link to that page. Else
 +
-- assume that it's a section heading, and make a link to the talk
 +
-- page of the current page with that section heading.
 +
local talkTitle = getTitleObject(talk)
 +
local talkArgIsTalkPage = true
 +
if not talkTitle or not talkTitle.isTalkPage then
 +
talkArgIsTalkPage = false
 +
talkTitle = getTitleObject(
 +
self.title.text,
 +
mw.site.namespaces[self.title.namespace].talk.id
 +
)
 +
end
 +
if talkTitle and talkTitle.exists then
 +
local talkText = 'Relevant discussion may be found on'
 +
if talkArgIsTalkPage then
 +
talkText = string.format(
 +
'%s [[%s|%s]].',
 +
talkText,
 +
talk,
 +
talkTitle.prefixedText
 +
)
 +
else
 +
talkText = string.format(
 +
'%s the [[%s#%s|talk page]].',
 +
talkText,
 +
talkTitle.prefixedText,
 +
talk
 +
)
 +
end
 +
self.talk = talkText
 +
end
 +
end
 +
 
 +
-- Get other values.
 +
self.fix = args.fix ~= '' and args.fix or nil
 +
local date
 +
if args.date and args.date ~= '' then
 +
date = args.date
 +
elseif args.date == '' and self.isTemplatePage then
 +
date = lang:formatDate('F Y')
 +
end
 +
if date then
 +
self.date = string.format(" <small>''(%s)''</small>", date)
 +
end
 +
self.info = args.info
 +
end
 +
 
 +
-- Set the non-collapsible text field. At the moment this is used by all box
 +
-- types other than ambox, and also by ambox when small=yes.
 +
if self.isSmall then
 +
self.text = args.smalltext or args.text
 +
else
 +
self.text = args.text
 +
end
 +
 
 +
-- Set the below row.
 +
self.below = cfg.below and args.below
 +
 
 +
-- General image settings.
 +
self.imageCellDiv = true
 +
self.imageEmptyCell = cfg.imageEmptyCell
 +
if cfg.imageEmptyCellStyle then
 +
self.imageEmptyCellStyle = 'border:none;padding:0px;width:1px'
 +
end
 +
 
 +
-- Left image settings.
 +
local imageLeft = self.isSmall and args.smallimage or args.image
 +
if cfg.imageCheckBlank and imageLeft ~= 'blank' and imageLeft ~= 'none'
 +
or not cfg.imageCheckBlank and imageLeft ~= 'none'
 +
then
 +
self.imageLeft = imageLeft
 +
if not imageLeft then
 +
local imageSize = self.isSmall
 +
and (cfg.imageSmallSize or '30x30px')
 +
or '40x40px'
 +
self.imageLeft = string.format('[[File:%s|%s|link=|alt=]]', self.typeImage
 +
or 'Imbox notice.png', imageSize)
 +
end
 +
end
 +
 
 +
-- Right image settings.
 +
local imageRight = self.isSmall and args.smallimageright or args.imageright
 +
if not (cfg.imageRightNone and imageRight == 'none') then
 +
self.imageRight = imageRight
 +
end
 
end
 
end
  
function p.build(boxType, args)
+
function MessageBox:setMainspaceCategories()
    -- Get the box config data from the data page.
+
local args = self.args
    local dataTables = mw.loadData('Module:Message box/data')
+
local cfg = self.cfg
    local data = dataTables[boxType]
 
    if not data then
 
        local boxTypes = {}
 
        for k, v in pairs(dataTables) do
 
            table.insert(boxTypes, mw.ustring.format('"%s"', k))
 
        end
 
        error(mw.ustring.format('invalid message box type "%s"; valid types are %s', tostring(boxType), mw.text.listToText(boxTypes)), 2)
 
    end
 
  
    -- Get the title object and the namespace.
+
if not cfg.allowMainspaceCategories then
    local title = mw.title.getCurrentTitle()
+
return nil
    local nsid = title.namespace
+
end
  
    -- Get a language object for formatDate.
+
local nums = {}
    local lang = mw.language.getContentLanguage()
+
for _, prefix in ipairs{'cat', 'category', 'all'} do
   
+
args[prefix .. '1'] = args[prefix]
-- Commenting this out for now - this will require tinkering with Namespace detect to differentiate between
+
nums = union(nums, getArgNums(args, prefix))
-- invalid titles and pages where the expensive parser function count has been exceeded.
+
end
--[[
 
    local title = nsDetect.getPageObject(args.page)
 
    local namespace = nsDetect.main{
 
        page = args.page,
 
        demospace = args.demospace,
 
        main = 'main',
 
        talk = 'talk',
 
        file = 'file',
 
        category = 'category',
 
        other = 'other'
 
    }
 
]]
 
  
    ------------------------ Process config data ----------------------------
+
-- The following is roughly equivalent to the old {{Ambox/category}}.
 +
local date = args.date
 +
date = type(date) == 'string' and date
 +
local preposition = 'from'
 +
for _, num in ipairs(nums) do
 +
local mainCat = args['cat' .. tostring(num)]
 +
or args['category' .. tostring(num)]
 +
local allCat = args['all' .. tostring(num)]
 +
mainCat = type(mainCat) == 'string' and mainCat
 +
allCat = type(allCat) == 'string' and allCat
 +
if mainCat and date and date ~= '' then
 +
local catTitle = string.format('%s %s %s', mainCat, preposition, date)
 +
self:addCat(0, catTitle)
 +
catTitle = getTitleObject('Category:' .. catTitle)
 +
if not catTitle or not catTitle.exists then
 +
self:addCat(0, 'Articles with invalid date parameter in template')
 +
end
 +
elseif mainCat and (not date or date == '') then
 +
self:addCat(0, mainCat)
 +
end
 +
if allCat then
 +
self:addCat(0, allCat)
 +
end
 +
end
 +
end
  
    -- Type data.
+
function MessageBox:setTemplateCategories()
    local typeData = data.types[args.type]
+
local args = self.args
    local invalidType = args.type and not typeData and true or false
+
local cfg = self.cfg
    typeData = typeData or data.types[data.default]
 
  
    -- Process data for collapsible text fields
+
-- Add template categories.
    local name, issue, talk, fix, date, info
+
if cfg.templateCategory then
    if data.useCollapsibleTextFields then
+
if cfg.templateCategoryRequireName then
        name = args.name
+
if self.isTemplatePage then
        local nameTitle = getTitleObject(name)
+
self:addCat(10, cfg.templateCategory)
        local isTemplatePage = nameTitle and title.prefixedText == ('Template:' .. nameTitle.text) and true or false
+
end
        local sect = args.sect
+
elseif not self.title.isSubpage then
        if presentButBlank(sect) then
+
self:addCat(10, cfg.templateCategory)
            sect = mw.ustring.format('This %s ', data.sectionDefault or 'page')
+
end
        elseif type(sect) == 'string' then
+
end
            sect = 'This ' .. sect .. ' '
 
        end
 
        issue = (sect or '') .. (args.issue or '') .. ' ' .. (args.text or '')
 
        talk = args.talk
 
        if presentButBlank(talk) and isTemplatePage then
 
            talk = '#'
 
        end
 
        fix = args.fix
 
        date = args.date
 
        if presentButBlank(date) and isTemplatePage then
 
            date = lang:formatDate('F Y')
 
        end
 
        info = args.info
 
    end
 
  
    -- Process the talk link, if present.
+
-- Add template error categories.
    if talk then
+
if cfg.templateErrorCategory then
        -- See if the talk link exists and is for a talk or a content namespace.
+
local templateErrorCategory = cfg.templateErrorCategory
        local talkTitle = type(talk) == 'string' and getTitleObject(talk)
+
local templateCat, templateSort
        if not talkTitle or not talkTitle.isTalkPage then
+
if not self.name and not self.title.isSubpage then
            -- If we couldn't process the talk page link, get the talk page of the current page.
+
templateCat = templateErrorCategory
            local success
+
elseif self.isTemplatePage then
            success, talkTitle = pcall(title.talkPageTitle, title)
+
local paramsToCheck = cfg.templateErrorParamsToCheck or {}
            if not success then
+
local count = 0
                talkTitle = nil
+
for i, param in ipairs(paramsToCheck) do
            end
+
if not args[param] then
        end
+
count = count + 1
        if talkTitle and talkTitle.exists then
+
end
            local talkText = ' Relevant discussion may be found on'
+
end
            if talkTitle.isTalkPage then
+
if count > 0 then
                talkText = mw.ustring.format('%s [[%s|%s]].', talkText, talk, talkTitle.prefixedText)
+
templateCat = templateErrorCategory
            else
+
templateSort = tostring(count)
                talkText = mw.ustring.format('%s the [[%s#%s|talk page]].', talkText, talkTitle.prefixedText, talk)
+
end
            end
+
if self.categoryNums and #self.categoryNums > 0 then
            talk = talkText
+
templateCat = templateErrorCategory
        end
+
templateSort = 'C'
    end
+
end
 +
end
 +
self:addCat(10, templateCat, templateSort)
 +
end
 +
end
  
    -- Find whether we are using a small message box and process our data accordingly.
+
function MessageBox:setAllNamespaceCategories()
    local isSmall = data.allowSmall and (args.small == 'yes' or args.small == true) and true or false
+
-- Set categories for all namespaces.
    local smallClass, image, imageRight, text, imageSize
+
if self.invalidTypeError then
    if isSmall then
+
local allSort = (self.title.namespace == 0 and 'Main:' or '') .. self.title.prefixedText
        smallClass = data.smallClass or 'mbox-small'
+
self:addCat('all', 'Wikipedia message box parameter needs fixing', allSort)
        image = args.smallimage or args.image
+
end
        imageRight = args.smallimageright or args.imageright
+
if self.isSubstituted then
        if data.useCollapsibleTextFields then
+
self:addCat('all', 'Pages with incorrectly substituted templates')
            text = args.smalltext or issue
+
end
        else
+
end
            text = args.smalltext or args.text
 
        end
 
        imageSize = data.imageSmallSize or '30x30px'
 
    else
 
        image = args.image
 
        imageRight = args.imageright
 
        imageSize = '40x40px'
 
        text = args.text
 
    end
 
  
    -- Process mainspace categories.
+
function MessageBox:setCategories()
    local mainCats = {}
+
if self.title.namespace == 0 then
    local origCategoryNums -- origCategoryNums might be used in computing the template error category.
+
self:setMainspaceCategories()
    if data.allowMainspaceCategories then
+
elseif self.title.namespace == 10 then
        -- Categories for the main namespace.
+
self:setTemplateCategories()
        local origCatNums = getArgNums(args, 'cat')
+
end
        local origCategoryNums = getArgNums(args, 'category')
+
self:setAllNamespaceCategories()
        local catNums = union(origCatNums, origCategoryNums)
+
end
        for _, num in ipairs(catNums) do
 
            local cat = args['cat' .. tostring(num)] or args['category' .. tostring(num)]
 
            local all = args['all' .. tostring(num)]
 
            table.insert(mainCats, formatCategory(cat, args.date, all))
 
        end
 
    end
 
  
    -- Process template namespace categories
+
function MessageBox:renderCategories()
    local templateCats = {}
+
-- Convert category tables to strings and pass them through
    if data.templateCategory and not title.isSubpage and not yesno(args.nocat) then
+
-- [[Module:Category handler]].
        table.insert(templateCats, mw.ustring.format('[[Category:%s]]', data.templateCategory))
+
return categoryHandler{
    end
+
main = table.concat(self.categories[0] or {}),
 +
template = table.concat(self.categories[10] or {}),
 +
all = table.concat(self.categories.all or {}),
 +
nocat = self.args.nocat,
 +
page = self.args.page
 +
}
 +
end
  
    -- Add an error category for the template namespace if appropriate.
+
function MessageBox:export()
    if data.templateErrorCategory then
+
local root = mw.html.create()
        local catName = data.templateErrorCategory
 
        local templateCat
 
        if not name and not title.isSubpage then
 
            templateCat = mw.ustring.format('[[Category:%s]]', catName)
 
        elseif type(name) == 'string' and title.prefixedText == ('Template:' .. name) then
 
            local paramsToCheck = data.templateErrorParamsToCheck or {}
 
            local count = 0
 
            for i, param in ipairs(paramsToCheck) do
 
                if not args[param] then
 
                    count = count + 1
 
                end
 
            end
 
            if count > 0 then
 
                templateCat = mw.ustring.format('[[Category:%s|%d]]', catName, count)
 
            end
 
            if origCategoryNums and #origCategoryNums > 0 then
 
                templateCat = mw.ustring.format('[[Category:%s|C]]', catName)
 
            end
 
        end
 
        table.insert(templateCats, templatecat)
 
    end
 
  
    -- Categories for all namespaces.
+
-- Add the subst check error.
    local allCats = {}
+
if self.isSubstituted and self.name then
    if invalidType then
+
root:tag('b')
        local catsort = (nsid == 0 and 'Main:' or '') .. title.prefixedText
+
:addClass('error')
        table.insert(allCats, mw.ustring.format('[[Category:Wikipedia message box parameter needs fixing|%s]]', catsort))
+
:wikitext(string.format(
    end
+
'Template <code>%s[[Template:%s|%s]]%s</code> has been incorrectly substituted.',
 +
mw.text.nowiki('{{'), self.name, self.name, mw.text.nowiki('}}')
 +
))
 +
end
  
    ------------------------ Build the box ----------------------------
+
-- Create the box table.
   
+
local boxTable = root:tag('table')
    local root = htmlBuilder.create()
+
boxTable:attr('id', self.id or nil)
 +
for i, class in ipairs(self.classes or {}) do
 +
boxTable:addClass(class or nil)
 +
end
 +
boxTable
 +
:cssText(self.style or nil)
 +
:attr('role', 'presentation')
  
    -- Do the subst check.
+
if self.attrs then
    if data.substCheck and args.subst == 'SUBST' then
+
boxTable:attr(self.attrs)
        if type(name) == 'string' then
+
end
            root
 
                .tag('b')
 
                    .addClass('error')
 
                    .wikitext(mw.ustring.format(
 
                        'Template <code>%s%s%s</code> has been incorrectly substituted.',
 
                        mw.text.nowiki('{{'), name, mw.text.nowiki('}}')
 
                    ))
 
        end
 
        table.insert(allCats, '[[Category:Pages with incorrectly substituted templates]]')
 
    end
 
  
    -- Create the box table.
+
-- Add the left-hand image.
    local box = root.tag('table')
+
local row = boxTable:tag('tr')
    box
+
if self.imageLeft then
        .attr('id', args.id)
+
local imageLeftCell = row:tag('td'):addClass('mbox-image')
    for i, class in ipairs(data.classes) do
+
if self.imageCellDiv then
        box
+
-- If we are using a div, redefine imageLeftCell so that the image
            .addClass(class)
+
-- is inside it. Divs use style="width: 52px;", which limits the
    end
+
-- image width to 52px. If any images in a div are wider than that,
    box
+
-- they may overlap with the text or cause other display problems.
        .addClass(isSmall and smallClass)
+
if self.isSmall then
        .addClass(data.classPlainlinksYesno and yesno(args.plainlinks or true) and 'plainlinks')
+
imageLeftCell = imageLeftCell:tag('div'):css('width', '32px')
        .addClass(typeData.class)
+
else
        .addClass(args.class)
+
imageLeftCell = imageLeftCell:tag('div'):css('width', '52px')
        .cssText(args.style)
+
end
        .attr('role', 'presentation')
+
end
 +
imageLeftCell:wikitext(self.imageLeft or nil)
 +
elseif self.imageEmptyCell then
 +
-- Some message boxes define an empty cell if no image is specified, and
 +
-- some don't. The old template code in templates where empty cells are
 +
-- specified gives the following hint: "No image. Cell with some width
 +
-- or padding necessary for text cell to have 100% width."
 +
row:tag('td')
 +
:addClass('mbox-empty-cell')
 +
:cssText(self.imageEmptyCellStyle or nil)
 +
end
  
    -- Add the left-hand image.
+
-- Add the text.
    local row = box.tag('tr')
+
local textCell = row:tag('td'):addClass('mbox-text')
    local imageCheckBlank = data.imageCheckBlank
+
if self.useCollapsibleTextFields then
    if image ~= 'none' and not imageCheckBlank or image ~= 'none' and imageCheckBlank and image ~= 'blank' then
+
-- The message box uses advanced text parameters that allow things to be
        local imageLeftCell = row.tag('td').addClass('mbox-image')
+
-- collapsible. At the moment, only ambox uses this.
        if not isSmall and data.imageCellDiv then
+
textCell:cssText(self.textstyle or nil)
            imageLeftCell = imageLeftCell.tag('div').css('width', '52px') -- If we are using a div, redefine imageLeftCell so that the image is inside it.
+
local textCellSpan = textCell:tag('span')
        end
+
textCellSpan
        imageLeftCell
+
:addClass('mbox-text-span')
            .wikitext(image or mw.ustring.format('[[File:%s|%s|link=|alt=]]', typeData.image, imageSize))
+
:wikitext(self.issue or nil)
    elseif data.imageEmptyCell then
+
if not self.isSmall then
        row.tag('td')
+
textCellSpan:tag('span')
            .addClass('mbox-empty-cell') -- No image. Cell with some width or padding necessary for text cell to have 100% width.
+
:addClass('hide-when-compact')
            .cssText(data.imageEmptyCellStyle and 'border:none;padding:0px;width:1px')
+
:wikitext(self.talk and (' ' .. self.talk) or nil)
    end
+
:wikitext(self.fix and (' ' .. self.fix) or nil)
 +
end
 +
textCellSpan:wikitext(self.date and (' ' .. self.date) or nil)
 +
if not self.isSmall then
 +
textCellSpan
 +
:tag('span')
 +
:addClass('hide-when-compact')
 +
:wikitext(self.info and (' ' .. self.info) or nil)
 +
end
 +
else
 +
-- Default text formatting - anything goes.
 +
textCell
 +
:cssText(self.textstyle or nil)
 +
:wikitext(self.text or nil)
 +
end
  
    -- Add the text.
+
-- Add the right-hand image.
    local textCell = row.tag('td').addClass('mbox-text')
+
if self.imageRight then
    if data.useCollapsibleTextFields then
+
local imageRightCell = row:tag('td'):addClass('mbox-imageright')
        textCell
+
if self.imageCellDiv then
            .cssText(args.textstyle)
+
-- If we are using a div, redefine imageRightCell so that the image
        local textCellSpan = textCell.tag('span')
+
-- is inside it.
        textCellSpan
+
if self.isSmall then
            .addClass('mbox-text-span')
+
imageRightCell = imageRightCell:tag('div'):css('width', '32px')
            .wikitext(issue)
+
else
        if not isSmall then
+
imageRightCell = imageRightCell:tag('div'):css('width', '52px')
            textCellSpan
+
end
                .tag('span')
+
end
                    .addClass('hide-when-compact')
+
imageRightCell
                    .wikitext(talk)
+
:wikitext(self.imageRight or nil)
                    .wikitext(' ')
+
end
                    .wikitext(fix)
 
                    .done()
 
        end
 
        textCellSpan
 
            .wikitext(date and mw.ustring.format(" <small>''(%s)''</small>", date))
 
        if not isSmall then
 
            textCellSpan
 
                .tag('span')
 
                    .addClass('hide-when-compact')
 
                    .wikitext(info and ' ' .. info)
 
        end
 
    else
 
        textCell
 
            .cssText(args.textstyle)
 
            .wikitext(text)
 
    end
 
  
    -- Add the right-hand image.
+
-- Add the below row.
    if imageRight and not (data.imageRightNone and imageRight == 'none') then
+
if self.below then
        local imageRightCell = row.tag('td').addClass('mbox-imageright')
+
boxTable:tag('tr')
        if not isSmall and data.imageCellDiv then
+
:tag('td')
            imageRightCell = imageRightCell.tag('div').css('width', '52px') -- If we are using a div, redefine imageRightCell so that the image is inside it.
+
:attr('colspan', self.imageRight and '3' or '2')
        end
+
:addClass('mbox-text')
        imageRightCell
+
:cssText(self.textstyle or nil)
            .wikitext(imageRight)
+
:wikitext(self.below or nil)
    end
+
end
  
    -- Add the below row.
+
-- Add error message for invalid type parameters.
    if data.below and args.below then
+
if self.invalidTypeError then
        box.tag('tr')
+
root:tag('div')
            .tag('td')
+
:css('text-align', 'center')
                .attr('colspan', args.imageright and '3' or '2')
+
:wikitext(string.format(
                .addClass('mbox-text')
+
'This message box is using an invalid "type=%s" parameter and needs fixing.',
                .cssText(args.textstyle)
+
self.type or ''
                .wikitext(args.below)
+
))
    end
+
end
  
    ------------------------ Error messages and categories ----------------------------
+
-- Add categories.
 +
root:wikitext(self:renderCategories() or nil)
  
    -- Add error message for invalid type parameters.
+
return tostring(root)
    if invalidType then
+
end
        root
+
 
            .tag('div')
+
--------------------------------------------------------------------------------
                .addClass('error')
+
-- Exports
                .css('text-align', 'center')
+
--------------------------------------------------------------------------------
                .wikitext(mw.ustring.format('This message box is using an invalid type parameter (<code>type=%s</code>) and needs fixing.', args.type or ''))
+
 
    end
+
local p, mt = {}, {}
  
    -- Add categories using categoryHandler.
+
function p._exportClasses()
    root
+
-- For testing.
        .wikitext(categoryHandler{
+
return {
            main = table.concat(mainCats),
+
MessageBox = MessageBox
            template = table.concat(templateCats),
+
}
            all = table.concat(allCats)
 
        })
 
   
 
    return tostring(root)
 
 
end
 
end
  
local function makeWrapper(boxType)
+
function p.main(boxType, args, cfgTables)
    return function (frame)
+
local box = MessageBox.new(boxType, args, cfgTables or mw.loadData('Module:Message box/configuration'))
        -- If called via #invoke, use the args passed into the invoking
+
box:setParameters()
        -- template, or the args passed to #invoke if any exist. Otherwise
+
box:setCategories()
        -- assume args are being passed directly in from the debug console
+
return box:export()
        -- or from another Lua module.
 
        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
 
        -- Trim whitespace and remove blank arguments.
 
        local args = {}
 
        for k, v in pairs(origArgs) do
 
            if type(v) == 'string' then
 
                v = mw.text.trim(v)
 
            end
 
            if v ~= '' or k == 'talk' or k == 'sect' or k == 'date' then
 
                args[k] = v
 
            end
 
        end
 
        return p.build(boxType, args)
 
    end
 
 
end
 
end
  
p.ambox = makeWrapper('ambox')
+
function mt.__index(t, k)
p.fmbox = makeWrapper('fmbox')
+
return function (frame)
p.imbox = makeWrapper('imbox')
+
if not getArgs then
p.ombox = makeWrapper('ombox')
+
getArgs = require('Module:Arguments').getArgs
p.cmbox = makeWrapper('cmbox')
+
end
p.tmbox = makeWrapper('tmbox')
+
return t.main(k, getArgs(frame, {trim = false, removeBlanks = false}))
 +
end
 +
end
  
return p
+
return setmetatable(p, mt)

Latest revision as of 22:34, 28 May 2018

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

-- This is a meta-module for producing message box templates, including
-- {{mbox}}, {{ambox}}, {{imbox}}, {{tmbox}}, {{ombox}}, {{cmbox}} and {{fmbox}}.

-- Load necessary modules.
require('Module:No globals')
local getArgs
local categoryHandler = require('Module:Category handler')._main
local yesno = require('Module:Yesno')

-- Get a language object for formatDate and ucfirst.
local lang = mw.language.getContentLanguage()

--------------------------------------------------------------------------------
-- Helper functions
--------------------------------------------------------------------------------

local function getTitleObject(...)
	-- Get the title object, passing the function through pcall
	-- in case we are over the expensive function count limit.
	local success, title = pcall(mw.title.new, ...)
	if success then
		return title
	end
end

local function union(t1, t2)
	-- Returns the union of two arrays.
	local vals = {}
	for i, v in ipairs(t1) do
		vals[v] = true
	end
	for i, v in ipairs(t2) do
		vals[v] = true
	end
	local ret = {}
	for k in pairs(vals) do
		table.insert(ret, k)
	end
	table.sort(ret)
	return ret
end

local function getArgNums(args, prefix)
	local nums = {}
	for k, v in pairs(args) do
		local num = mw.ustring.match(tostring(k), '^' .. prefix .. '([1-9]%d*)$')
		if num then
			table.insert(nums, tonumber(num))
		end
	end
	table.sort(nums)
	return nums
end

--------------------------------------------------------------------------------
-- Box class definition
--------------------------------------------------------------------------------

local MessageBox = {}
MessageBox.__index = MessageBox

function MessageBox.new(boxType, args, cfg)
	args = args or {}
	local obj = {}

	-- Set the title object and the namespace.
	obj.title = getTitleObject(args.page) or mw.title.getCurrentTitle()

	-- Set the config for our box type.
	obj.cfg = cfg[boxType]
	if not obj.cfg then
		local ns = obj.title.namespace
		-- boxType is "mbox" or invalid input
		if ns == 0 then
			obj.cfg = cfg.ambox -- main namespace
		elseif ns == 6 then
			obj.cfg = cfg.imbox -- file namespace
		elseif ns == 14 then
			obj.cfg = cfg.cmbox -- category namespace
		else
			local nsTable = mw.site.namespaces[ns]
			if nsTable and nsTable.isTalk then
				obj.cfg = cfg.tmbox -- any talk namespace
			else
				obj.cfg = cfg.ombox -- other namespaces or invalid input
			end
		end
	end

	-- Set the arguments, and remove all blank arguments except for the ones
	-- listed in cfg.allowBlankParams.
	do
		local newArgs = {}
		for k, v in pairs(args) do
			if v ~= '' then
				newArgs[k] = v
			end
		end
		for i, param in ipairs(obj.cfg.allowBlankParams or {}) do
			newArgs[param] = args[param]
		end
		obj.args = newArgs
	end

	-- Define internal data structure.
	obj.categories = {}
	obj.classes = {}

	return setmetatable(obj, MessageBox)
end

function MessageBox:addCat(ns, cat, sort)
	if not cat then
		return nil
	end
	if sort then
		cat = string.format('[[Category:%s|%s]]', cat, sort)
	else
		cat = string.format('[[Category:%s]]', cat)
	end
	self.categories[ns] = self.categories[ns] or {}
	table.insert(self.categories[ns], cat)
end

function MessageBox:addClass(class)
	if not class then
		return nil
	end
	table.insert(self.classes, class)
end

function MessageBox:setParameters()
	local args = self.args
	local cfg = self.cfg

	-- Get type data.
	self.type = args.type
	local typeData = cfg.types[self.type]
	self.invalidTypeError = cfg.showInvalidTypeError
		and self.type
		and not typeData
	typeData = typeData or cfg.types[cfg.default]
	self.typeClass = typeData.class
	self.typeImage = typeData.image

	-- Find if the box has been wrongly substituted.
	self.isSubstituted = cfg.substCheck and args.subst == 'SUBST'

	-- Find whether we are using a small message box.
	self.isSmall = cfg.allowSmall and (
		cfg.smallParam and args.small == cfg.smallParam
		or not cfg.smallParam and yesno(args.small)
	)

	-- Add attributes, classes and styles.
	self.id = args.id
	self:addClass(
		cfg.usePlainlinksParam and yesno(args.plainlinks or true) and 'plainlinks'
	)
	for _, class in ipairs(cfg.classes or {}) do
		self:addClass(class)
	end
	if self.isSmall then
		self:addClass(cfg.smallClass or 'mbox-small')
	end
	self:addClass(self.typeClass)
	self:addClass(args.class)
	self.style = args.style
	self.attrs = args.attrs

	-- Set text style.
	self.textstyle = args.textstyle

	-- Find if we are on the template page or not. This functionality is only
	-- used if useCollapsibleTextFields is set, or if both cfg.templateCategory
	-- and cfg.templateCategoryRequireName are set.
	self.useCollapsibleTextFields = cfg.useCollapsibleTextFields
	if self.useCollapsibleTextFields
		or cfg.templateCategory
		and cfg.templateCategoryRequireName
	then
		self.name = args.name
		if self.name then
			local templateName = mw.ustring.match(
				self.name,
				'^[tT][eE][mM][pP][lL][aA][tT][eE][%s_]*:[%s_]*(.*)$'
			) or self.name
			templateName = 'Template:' .. templateName
			self.templateTitle = getTitleObject(templateName)
		end
		self.isTemplatePage = self.templateTitle
			and mw.title.equals(self.title, self.templateTitle)
	end

	-- Process data for collapsible text fields. At the moment these are only
	-- used in {{ambox}}.
	if self.useCollapsibleTextFields then
		-- Get the self.issue value.
		if self.isSmall and args.smalltext then
			self.issue = args.smalltext
		else
			local sect
			if args.sect == '' then
				sect = 'This ' .. (cfg.sectionDefault or 'page')
			elseif type(args.sect) == 'string' then
				sect = 'This ' .. args.sect
			end
			local issue = args.issue
			issue = type(issue) == 'string' and issue ~= '' and issue or nil
			local text = args.text
			text = type(text) == 'string' and text or nil
			local issues = {}
			table.insert(issues, sect)
			table.insert(issues, issue)
			table.insert(issues, text)
			self.issue = table.concat(issues, ' ')
		end

		-- Get the self.talk value.
		local talk = args.talk
		-- Show talk links on the template page or template subpages if the talk
		-- parameter is blank.
		if talk == ''
			and self.templateTitle
			and (
				mw.title.equals(self.templateTitle, self.title)
				or self.title:isSubpageOf(self.templateTitle)
			)
		then
			talk = '#'
		elseif talk == '' then
			talk = nil
		end
		if talk then
			-- If the talk value is a talk page, make a link to that page. Else
			-- assume that it's a section heading, and make a link to the talk
			-- page of the current page with that section heading.
			local talkTitle = getTitleObject(talk)
			local talkArgIsTalkPage = true
			if not talkTitle or not talkTitle.isTalkPage then
				talkArgIsTalkPage = false
				talkTitle = getTitleObject(
					self.title.text,
					mw.site.namespaces[self.title.namespace].talk.id
				)
			end
			if talkTitle and talkTitle.exists then
				local talkText = 'Relevant discussion may be found on'
				if talkArgIsTalkPage then
					talkText = string.format(
						'%s [[%s|%s]].',
						talkText,
						talk,
						talkTitle.prefixedText
					)
				else
					talkText = string.format(
						'%s the [[%s#%s|talk page]].',
						talkText,
						talkTitle.prefixedText,
						talk
					)
				end
				self.talk = talkText
			end
		end

		-- Get other values.
		self.fix = args.fix ~= '' and args.fix or nil
		local date
		if args.date and args.date ~= '' then
			date = args.date
		elseif args.date == '' and self.isTemplatePage then
			date = lang:formatDate('F Y')
		end
		if date then
			self.date = string.format(" <small>''(%s)''</small>", date)
		end
		self.info = args.info
	end

	-- Set the non-collapsible text field. At the moment this is used by all box
	-- types other than ambox, and also by ambox when small=yes.
	if self.isSmall then
		self.text = args.smalltext or args.text
	else
		self.text = args.text
	end

	-- Set the below row.
	self.below = cfg.below and args.below

	-- General image settings.
	self.imageCellDiv = true
	self.imageEmptyCell = cfg.imageEmptyCell
	if cfg.imageEmptyCellStyle then
		self.imageEmptyCellStyle = 'border:none;padding:0px;width:1px'
	end

	-- Left image settings.
	local imageLeft = self.isSmall and args.smallimage or args.image
	if cfg.imageCheckBlank and imageLeft ~= 'blank' and imageLeft ~= 'none'
		or not cfg.imageCheckBlank and imageLeft ~= 'none'
	then
		self.imageLeft = imageLeft
		if not imageLeft then
			local imageSize = self.isSmall
				and (cfg.imageSmallSize or '30x30px')
				or '40x40px'
			self.imageLeft = string.format('[[File:%s|%s|link=|alt=]]', self.typeImage
				or 'Imbox notice.png', imageSize)
		end
	end

	-- Right image settings.
	local imageRight = self.isSmall and args.smallimageright or args.imageright
	if not (cfg.imageRightNone and imageRight == 'none') then
		self.imageRight = imageRight
	end
end

function MessageBox:setMainspaceCategories()
	local args = self.args
	local cfg = self.cfg

	if not cfg.allowMainspaceCategories then
		return nil
	end

	local nums = {}
	for _, prefix in ipairs{'cat', 'category', 'all'} do
		args[prefix .. '1'] = args[prefix]
		nums = union(nums, getArgNums(args, prefix))
	end

	-- The following is roughly equivalent to the old {{Ambox/category}}.
	local date = args.date
	date = type(date) == 'string' and date
	local preposition = 'from'
	for _, num in ipairs(nums) do
		local mainCat = args['cat' .. tostring(num)]
			or args['category' .. tostring(num)]
		local allCat = args['all' .. tostring(num)]
		mainCat = type(mainCat) == 'string' and mainCat
		allCat = type(allCat) == 'string' and allCat
		if mainCat and date and date ~= '' then
			local catTitle = string.format('%s %s %s', mainCat, preposition, date)
			self:addCat(0, catTitle)
			catTitle = getTitleObject('Category:' .. catTitle)
			if not catTitle or not catTitle.exists then
				self:addCat(0, 'Articles with invalid date parameter in template')
			end
		elseif mainCat and (not date or date == '') then
			self:addCat(0, mainCat)
		end
		if allCat then
			self:addCat(0, allCat)
		end
	end
end

function MessageBox:setTemplateCategories()
	local args = self.args
	local cfg = self.cfg

	-- Add template categories.
	if cfg.templateCategory then
		if cfg.templateCategoryRequireName then
			if self.isTemplatePage then
				self:addCat(10, cfg.templateCategory)
			end
		elseif not self.title.isSubpage then
			self:addCat(10, cfg.templateCategory)
		end
	end

	-- Add template error categories.
	if cfg.templateErrorCategory then
		local templateErrorCategory = cfg.templateErrorCategory
		local templateCat, templateSort
		if not self.name and not self.title.isSubpage then
			templateCat = templateErrorCategory
		elseif self.isTemplatePage then
			local paramsToCheck = cfg.templateErrorParamsToCheck or {}
			local count = 0
			for i, param in ipairs(paramsToCheck) do
				if not args[param] then
					count = count + 1
				end
			end
			if count > 0 then
				templateCat = templateErrorCategory
				templateSort = tostring(count)
			end
			if self.categoryNums and #self.categoryNums > 0 then
				templateCat = templateErrorCategory
				templateSort = 'C'
			end
		end
		self:addCat(10, templateCat, templateSort)
	end
end

function MessageBox:setAllNamespaceCategories()
	-- Set categories for all namespaces.
	if self.invalidTypeError then
		local allSort = (self.title.namespace == 0 and 'Main:' or '') .. self.title.prefixedText
		self:addCat('all', 'Wikipedia message box parameter needs fixing', allSort)
	end
	if self.isSubstituted then
		self:addCat('all', 'Pages with incorrectly substituted templates')
	end
end

function MessageBox:setCategories()
	if self.title.namespace == 0 then
		self:setMainspaceCategories()
	elseif self.title.namespace == 10 then
		self:setTemplateCategories()
	end
	self:setAllNamespaceCategories()
end

function MessageBox:renderCategories()
	-- Convert category tables to strings and pass them through
	-- [[Module:Category handler]].
	return categoryHandler{
		main = table.concat(self.categories[0] or {}),
		template = table.concat(self.categories[10] or {}),
		all = table.concat(self.categories.all or {}),
		nocat = self.args.nocat,
		page = self.args.page
	}
end

function MessageBox:export()
	local root = mw.html.create()

	-- Add the subst check error.
	if self.isSubstituted and self.name then
		root:tag('b')
			:addClass('error')
			:wikitext(string.format(
				'Template <code>%s[[Template:%s|%s]]%s</code> has been incorrectly substituted.',
				mw.text.nowiki('{{'), self.name, self.name, mw.text.nowiki('}}')
			))
	end

	-- Create the box table.
	local boxTable = root:tag('table')
	boxTable:attr('id', self.id or nil)
	for i, class in ipairs(self.classes or {}) do
		boxTable:addClass(class or nil)
	end
	boxTable
		:cssText(self.style or nil)
		:attr('role', 'presentation')

	if self.attrs then
		boxTable:attr(self.attrs)
	end

	-- Add the left-hand image.
	local row = boxTable:tag('tr')
	if self.imageLeft then
		local imageLeftCell = row:tag('td'):addClass('mbox-image')
		if self.imageCellDiv then
			-- If we are using a div, redefine imageLeftCell so that the image
			-- is inside it. Divs use style="width: 52px;", which limits the
			-- image width to 52px. If any images in a div are wider than that,
			-- they may overlap with the text or cause other display problems.
			if self.isSmall then
				imageLeftCell = imageLeftCell:tag('div'):css('width', '32px')
			else
				imageLeftCell = imageLeftCell:tag('div'):css('width', '52px')
			end
		end
		imageLeftCell:wikitext(self.imageLeft or nil)
	elseif self.imageEmptyCell then
		-- Some message boxes define an empty cell if no image is specified, and
		-- some don't. The old template code in templates where empty cells are
		-- specified gives the following hint: "No image. Cell with some width
		-- or padding necessary for text cell to have 100% width."
		row:tag('td')
			:addClass('mbox-empty-cell')
			:cssText(self.imageEmptyCellStyle or nil)
	end

	-- Add the text.
	local textCell = row:tag('td'):addClass('mbox-text')
	if self.useCollapsibleTextFields then
		-- The message box uses advanced text parameters that allow things to be
		-- collapsible. At the moment, only ambox uses this.
		textCell:cssText(self.textstyle or nil)
		local textCellSpan = textCell:tag('span')
		textCellSpan
			:addClass('mbox-text-span')
			:wikitext(self.issue or nil)
		if not self.isSmall then
			textCellSpan:tag('span')
				:addClass('hide-when-compact')
				:wikitext(self.talk and (' ' .. self.talk) or nil)
				:wikitext(self.fix and (' ' .. self.fix) or nil)
		end
		textCellSpan:wikitext(self.date and (' ' .. self.date) or nil)
		if not self.isSmall then
			textCellSpan
				:tag('span')
				:addClass('hide-when-compact')
				:wikitext(self.info and (' ' .. self.info) or nil)
		end
	else
		-- Default text formatting - anything goes.
		textCell
			:cssText(self.textstyle or nil)
			:wikitext(self.text or nil)
	end

	-- Add the right-hand image.
	if self.imageRight then
		local imageRightCell = row:tag('td'):addClass('mbox-imageright')
		if self.imageCellDiv then
			-- If we are using a div, redefine imageRightCell so that the image
			-- is inside it.
			if self.isSmall then
				imageRightCell = imageRightCell:tag('div'):css('width', '32px')
			else
				imageRightCell = imageRightCell:tag('div'):css('width', '52px')
			end
		end
		imageRightCell
			:wikitext(self.imageRight or nil)
	end

	-- Add the below row.
	if self.below then
		boxTable:tag('tr')
			:tag('td')
				:attr('colspan', self.imageRight and '3' or '2')
				:addClass('mbox-text')
				:cssText(self.textstyle or nil)
				:wikitext(self.below or nil)
	end

	-- Add error message for invalid type parameters.
	if self.invalidTypeError then
		root:tag('div')
			:css('text-align', 'center')
			:wikitext(string.format(
				'This message box is using an invalid "type=%s" parameter and needs fixing.',
				self.type or ''
			))
	end

	-- Add categories.
	root:wikitext(self:renderCategories() or nil)

	return tostring(root)
end

--------------------------------------------------------------------------------
-- Exports
--------------------------------------------------------------------------------

local p, mt = {}, {}

function p._exportClasses()
	-- For testing.
	return {
		MessageBox = MessageBox
	}
end

function p.main(boxType, args, cfgTables)
	local box = MessageBox.new(boxType, args, cfgTables or mw.loadData('Module:Message box/configuration'))
	box:setParameters()
	box:setCategories()
	return box:export()
end

function mt.__index(t, k)
	return function (frame)
		if not getArgs then
			getArgs = require('Module:Arguments').getArgs
		end
		return t.main(k, getArgs(frame, {trim = false, removeBlanks = false}))
	end
end

return setmetatable(p, mt)