Modiwl:Message box
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This template is used in system messages. Changes to it can cause immediate changes to the Wikipedia user interface. To avoid large-scale disruption, any changes should first be tested in this template's /sandbox or /testcases subpage, or in your own user space. The tested changes can then be added in one single edit to this template. Please discuss any changes at the talk page before implementing them. |
This module is subject to page protection. It is a highly visible module in use by a very large number of pages, or is substituted very frequently. Because vandalism or mistakes would affect many pages, and even trivial editing might cause substantial load on the servers, it is protected from editing. |
Uses Lua: |
This is a meta-module that implements the message box templates {{mbox}}, {{ambox}}, {{cmbox}}, {{fmbox}}, {{imbox}}, {{ombox}}, and {{tmbox}}. It is intended to be used from Lua modules, and should not be used directly from wiki pages. If you want to use this module's functionality from a wiki page, please use the individual message box templates instead.
Usage
golyguTo use this module from another Lua module, first you need to load it.
local messageBox = require('Module:Message box')
To create a message box, use the main
function. It takes two parameters: the first is the box type (as a string), and the second is a table containing the message box parameters.
local box = messageBox.main( boxType, {
param1 = param1,
param2 = param2,
-- More parameters...
})
There are seven available box types:
Box type | Template | Purpose |
---|---|---|
mbox |
{{mbox}} | For message boxes to be used in multiple namespaces |
ambox |
{{ambox}} | For article message boxes |
cmbox |
{{cmbox}} | For category message boxes |
fmbox |
{{fmbox}} | For interface message boxes |
imbox |
{{imbox}} | For file namespace message boxes |
tmbox |
{{tmbox}} | For talk page message boxes |
ombox |
{{ombox}} | For message boxes in other namespaces |
See the template page of each box type for the available parameters.
Usage from #invoke
golyguAs well as the main
function, this module has separate functions for each box type. They are accessed using the code {{#invoke:Message box|mbox|...}}
, {{#invoke:Message box|ambox|...}}
, etc. These will work when called from other modules, but they access code used to process arguments passed from #invoke, and so calling them will be less efficient than calling main
.
Technical details
golyguThe module uses the same basic code for each of the templates listed above; the differences between each of them are configured using the data at Module:Message box/configuration. Here are the various configuration options and what they mean:
types
– a table containing data used by the type parameter of the message box. The table keys are the values that can be passed to the type parameter, and the table values are tables containing the class and the image used by that type.default
– the type to use if no value was passed to the type parameter, or if an invalid value was specified.showInvalidTypeError
– whether to show an error if the value passed to the type parameter was invalid.allowBlankParams
– usually blank values are stripped from parameters passed to the module. However, whitespace is preserved for the parameters included in the allowBlankParams table.allowSmall
– whether a small version of the message box can be produced with "small=yes".smallParam
– a custom name for the small parameter. For example, if set to "left" you can produce a small message box using "small=left".smallClass
– the class to use for small message boxes.substCheck
– whether to perform a subst check or not.classes
– an array of classes to use with the message box.imageEmptyCell
– whether to use an empty<td>...</td>
cell if there is no image set. This is used to preserve spacing for message boxes with a width of less than 100% of the screen.imageEmptyCellStyle
– whether empty image cells should be styled.imageCheckBlank
– whether "image=blank" results in no image being displayed.imageSmallSize
– usually, images used in small message boxes are set to 30x30px. This sets a custom size.imageCellDiv
– whether to enclose the image in a div enforcing a maximum image size.useCollapsibleTextFields
– whether to use text fields that can be collapsed, i.e. "issue", "fix", "talk", etc. Currently only used in ambox.imageRightNone
– whether imageright=none results in no image being displayed on the right-hand side of the message box.sectionDefault
– the default name for the "section" parameter. Depends onuseCollapsibleTextFields
.allowMainspaceCategories
– allow categorisation in the main namespace.templateCategory
– the name of a category to be placed on the template page.templateCategoryRequireName
– whether thename
parameter is required to display the template category.templateErrorCategory
– the name of the error category to be used on the template page.templateErrorParamsToCheck
– an array of parameter names to check. If any are absent, thetemplateErrorCategory
is applied to the template page.
require('strict')
local getArgs
local yesno = require('Module:Yesno')
local lang = mw.language.getContentLanguage()
local CONFIG_MODULE = 'Module:Message box/configuration'
local DEMOSPACES = {talk = 'tmbox', image = 'imbox', file = 'imbox', category = 'cmbox', article = 'ambox', main = 'ambox'}
--------------------------------------------------------------------------------
-- 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 args.demospace and args.demospace ~= '' then
-- implement demospace parameter of mbox
local demospace = string.lower(args.demospace)
if DEMOSPACES[demospace] then
-- use template from DEMOSPACES
obj.cfg = cfg[DEMOSPACES[demospace]]
elseif string.find( demospace, 'talk' ) then
-- demo as a talk page
obj.cfg = cfg.tmbox
else
-- default to ombox
obj.cfg = cfg.ombox
end
elseif 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 = {}
-- For lazy loading of [[Module:Category handler]].
obj.hasCategories = false
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.hasCategories = true
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
self.typeImageNeedsLink = typeData.imageNeedsLink
-- 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.name = args.name
if self.name then
self:addClass('box-' .. string.gsub(self.name,' ','_'))
end
if yesno(args.plainlinks) ~= false then
self:addClass('plainlinks')
end
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
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
if self.isSmall then
local talkLink = talkArgIsTalkPage and talk or (talkTitle.prefixedText .. '#' .. talk)
talkText = string.format('([[%s|talk]])', talkLink)
else
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
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(" <span class='date-container'><i>(<span class='date'>%s</span>)</i></span>", date)
end
self.info = args.info
if yesno(args.removalnotice) then
self.removalNotice = cfg.removalNotice
end
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 = not self.isSmall and cfg.imageCellDiv
self.imageEmptyCell = cfg.imageEmptyCell
-- 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%s|alt=]]', self.typeImage
or 'Information icon4.svg', imageSize, self.typeImageNeedsLink and "" or "|link=" )
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
-- set templatestyles
self.base_templatestyles = cfg.templatestyles
self.templatestyles = args.templatestyles
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()
if not self.hasCategories then
-- No categories added, no need to pass them to Category handler so,
-- if it was invoked, it would return the empty string.
-- So we shortcut and return the empty string.
return ""
end
-- Convert category tables to strings and pass them through
-- [[Module:Category handler]].
return require('Module:Category handler')._main{
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
local frame = mw.getCurrentFrame()
root:wikitext(frame:extensionTag{
name = 'templatestyles',
args = { src = self.base_templatestyles },
})
-- Add support for a single custom templatestyles sheet. Undocumented as
-- need should be limited and many templates using mbox are substed; we
-- don't want to spread templatestyles sheets around to arbitrary places
if self.templatestyles then
root:wikitext(frame:extensionTag{
name = 'templatestyles',
args = { src = self.templatestyles },
})
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.
imageLeftCell = imageLeftCell:tag('div'):addClass('mbox-image-div')
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')
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 textCellDiv = textCell:tag('div')
textCellDiv
:addClass('mbox-text-span')
:wikitext(self.issue or nil)
if (self.talk or self.fix) then
textCellDiv:tag('span')
:addClass('hide-when-compact')
:wikitext(self.talk and (' ' .. self.talk) or nil)
:wikitext(self.fix and (' ' .. self.fix) or nil)
end
textCellDiv:wikitext(self.date and (' ' .. self.date) or nil)
if self.info and not self.isSmall then
textCellDiv
:tag('span')
:addClass('hide-when-compact')
:wikitext(self.info and (' ' .. self.info) or nil)
end
if self.removalNotice then
textCellDiv:tag('span')
:addClass('hide-when-compact')
:tag('i')
:wikitext(string.format(" (%s)", self.removalNotice))
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.
imageRightCell = imageRightCell:tag('div'):addClass('mbox-image-div')
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')
:addClass('mbox-invalid-type')
: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(CONFIG_MODULE))
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)