Module:Message box
From Game Detectives Wiki
Revision as of 08:26, 3 October 2013 by Mr. Stradivarius (talk) (remove the presentButBlank function, fix bug with blank date values, and trim whitespace from all arguments)
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}}. -- Require necessary modules. local htmlBuilder = require('Module:HtmlBuilder') 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() -- Set aliases for often-used functions to reduce table lookups. local format = mw.ustring.format local tinsert = table.insert local tconcat = table.concat local trim = mw.text.trim local box = {} local function getTitleObject(page) if type(page) == 'string' then -- 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, page) if success then return title end 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 tinsert(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 tinsert(nums, tonumber(num)) end end table.sort(nums) return nums end function box.getNamespaceId(ns) if not ns then return end if type(ns) == 'string' then ns = lang:ucfirst(mw.ustring.lower(ns)) if ns == 'Main' then ns = 0 end end local nsTable = mw.site.namespaces[ns] if nsTable then return nsTable.id end end function box.getMboxType(nsid) -- Gets the mbox type from a namespace number. if nsid == 0 then return 'ambox' -- main namespace elseif nsid == 6 then return 'imbox' -- file namespace elseif nsid == 14 then return 'cmbox' -- category namespace else local nsTable = mw.site.namespaces[nsid] if nsTable and nsTable.isTalk then return 'tmbox' -- any talk namespace else return 'ombox' -- other namespaces or invalid input end end end function box:addCat(ns, cat, sort) if type(cat) ~= 'string' then return end local nsVals = {'main', 'template', 'all'} local tname for i, val in ipairs(nsVals) do if ns == val then tname = ns .. 'Cats' end end if not tname then for i, val in ipairs(nsVals) do nsVals[i] = format('"%s"', val) end error('invalid ns parameter passed to box:addCat; valid values are ' .. mw.text.listToText(nsVals, nil, ' or ')) end self[tname] = self[tname] or {} if type(sort) == 'string' then tinsert(self[tname], format('[[Category:%s|%s]]', cat, sort)) else tinsert(self[tname], format('[[Category:%s]]', cat)) end end function box:addClass(class) if type(class) ~= 'string' then return end self.classes = self.classes or {} tinsert(self.classes, class) end function box:setTitle(args) -- Get the title object and the namespace. self.pageTitle = getTitleObject(args.page ~= '' and args.page) self.title = self.pageTitle or mw.title.getCurrentTitle() self.demospace = args.demospace ~= '' and args.demospace or nil self.nsid = box.getNamespaceId(self.demospace) or self.title.namespace end function box:getConfig(boxType) -- Get the box config data from the data page. if boxType == 'mbox' then boxType = box.getMboxType(self.nsid) end local cfgTables = mw.loadData('Module:Message box/configuration') local cfg = cfgTables[boxType] if not cfg then local boxTypes = {} for k, v in pairs(dataTables) do tinsert(boxTypes, format('"%s"', k)) end tinsert(boxTypes, '"mbox"') error(format('invalid message box type "%s"; valid types are %s', tostring(boxType), mw.text.listToText(boxTypes)), 2) end return cfg end function box:removeBlankArgs(cfg, args) -- Only allow blank arguments for the parameter names listed in cfg.allowBlankParams. local newArgs = {} for k, v in pairs(args) do if v ~= '' then newArgs[k] = v end end for i, param in ipairs(cfg.allowBlankParams or {}) do newArgs[param] = args[param] end return newArgs end function box:setBoxParameters(cfg, args) -- Get type data. self.type = args.type local typeData = cfg.types[self.type] self.invalidTypeError = cfg.showInvalidTypeError and self.type and not typeData and true or false typeData = typeData or cfg.types[cfg.default] self.typeClass = typeData.class self.typeImage = typeData.image -- Find if the box has been wrongly substituted. if cfg.substCheck and args.subst == 'SUBST' then self.isSubstituted = true end -- Find whether we are using a small message box. if cfg.allowSmall and ( cfg.smallParam and args.small == cfg.smallParam or not cfg.smallParam and yesno(args.small) ) then self.isSmall = true else self.isSmall = false end -- 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 -- Set text style. self.textstyle = args.textstyle -- Process data for collapsible text fields. At the moment these are only used in {{ambox}}. self.useCollapsibleTextFields = cfg.useCollapsibleTextFields if self.useCollapsibleTextFields then self.name = args.name local nameTitle = getTitleObject(self.name) self.isTemplatePage = nameTitle and self.title.prefixedText == ('Template:' .. nameTitle.text) and true or false -- 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 ' .. sect end local issue = args.issue issue = type(issue) == 'string' and issue or nil local text = args.text text = type(text) == 'string' and text or nil local issues = {} tinsert(issues, sect) tinsert(issues, issue) tinsert(issues, text) self.issue = tconcat(issues, ' ') end -- Get the self.talk value. local talk = args.talk if talk == '' and self.isTemplatePage then talk = '#' end if talk then -- See if the talk link exists and is for a talk or a content namespace. local talkTitle = getTitleObject(talk) if not talkTitle or not talkTitle.isTalkPage then -- If we couldn't process the talk page link, get the talk page of the current page. local success success, talkTitle = pcall(self.title.talkPageTitle, self.title) if not success then talkTitle = nil end end if talkTitle and talkTitle.exists then local talkText = 'Relevant discussion may be found on' if talkTitle.isTalkPage then talkText = format('%s [[%s|%s]].', talkText, talk, talkTitle.prefixedText) else talkText = format('%s the [[%s#%s|talk page]].', talkText, talkTitle.prefixedText, talk) end self.talk = talkText end end -- Get other values. self.fix = args.fix if args.date and args.date ~= '' then self.date = format(" <small>''(%s)''</small>", args.date) elseif args.date == '' and self.isTemplatePage then self.date = lang:formatDate('F Y') 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 = not self.isSmall and cfg.imageCellDiv and true or false 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 = 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 -- Add mainspace categories. At the moment these are only used in {{ambox}}. if cfg.allowMainspaceCategories then if args.cat then args.cat1 = args.cat end self.catNums = getArgNums(args, 'cat') if args.category then args.category1 = args.category end self.categoryNums = getArgNums(args, 'category') self.categoryParamNums = union(self.catNums, self.categoryNums) -- 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(self.categoryParamNums) 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 then local catTitle = format('%s %s %s', mainCat, preposition, date) self:addCat('main', catTitle) catTitle = getTitleObject('Category:' .. catTitle) if not catTitle or not catTitle.exists then self:addCat('main', 'Articles with invalid date parameter in template') end elseif mainCat and not date then self:addCat('main', mainCat) end if allCat then self:addCat('main', allCat) end end end -- Add template-namespace categories. self.isTemplatePage = type(self.name) == 'string' and self.title.prefixedText == ('Template:' .. self.name) if cfg.templateCategory then if self.name then if self.isTemplatePage then self:addCat('template', cfg.templateCategory) end elseif not self.title.isSubpage then self:addCat('template', cfg.templateCategory) end end -- Add template error category. if cfg.templateErrorCategory then local templateErrorCategory = cfg.templateErrorCategory local templateCat, templateSort if not self.name and not self.title.isSubpage then templateCat = templateErrorCategory elseif type(self.name) == 'string' and self.title.prefixedText == ('Template:' .. self.name) 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('template', templateCat, templateSort) end -- Categories for all namespaces. if self.invalidTypeError then local allSort = (nsid == 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 -- Convert category tables to strings and pass them through [[Module:Category handler]]. self.categories = categoryHandler{ main = tconcat(self.mainCats or {}), template = tconcat(self.templateCats or {}), all = tconcat(self.allCats or {}), nocat = args.nocat, demospace = self.demospace, page = self.pageTitle and self.pageTitle.prefixedText or nil } end function box:export() local root = htmlBuilder.create() -- Add the subst check error. if self.isSubstituted and self.name then root .tag('b') .addClass('error') .wikitext(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) for i, class in ipairs(self.classes or {}) do boxTable .addClass(class) end boxTable .cssText(self.style) .attr('role', 'presentation') -- 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').css('width', '52px') end imageLeftCell .wikitext(self.imageLeft) 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) 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) local textCellSpan = textCell.tag('span') textCellSpan .addClass('mbox-text-span') .wikitext(self.issue) if not self.isSmall then textCellSpan .tag('span') .addClass('hide-when-compact') .wikitext(self.talk and ' ' .. self.talk) .wikitext(self.fix and ' ' .. self.fix) end textCellSpan .wikitext(self.date and ' ' .. self.date) if not self.isSmall then textCellSpan .tag('span') .addClass('hide-when-compact') .wikitext(self.info and ' ' .. self.info) end else -- Default text formatting - anything goes. textCell .cssText(self.textstyle) .wikitext(self.text) end -- Add the right-hand image. if self.imageRight then local imageRightCell = row.tag('td').addClass('mbox-imageright') if self.imageCellDiv then imageRightCell = imageRightCell.tag('div').css('width', '52px') -- If we are using a div, redefine imageRightCell so that the image is inside it. end imageRightCell .wikitext(self.imageRight) 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) .wikitext(self.below) end -- Add error message for invalid type parameters. if self.invalidTypeError then root .tag('div') .addClass('error') .css('text-align', 'center') .wikitext(format('This message box is using an invalid type parameter (<code>type=%s</code>) and needs fixing.', self.type or '')) end -- Add categories. root .wikitext(self.categories) return tostring(root) end local function makeBox(boxType, args) box:setTitle(args) local cfg = box:getConfig(boxType) args = box:removeBlankArgs(cfg, args) box:setBoxParameters(cfg, args) return box:export() end local function makeWrapper(boxType) return function (frame) -- If called via #invoke, use the args passed into the invoking -- template, or the args passed to #invoke if any exist. Otherwise -- assume args are being passed directly in from the debug console -- 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. local args = {} for k, v in pairs(origArgs) do if type(v) == 'string' then v = trim(v) end args[k] = v end return makeBox(boxType, args) end end return { box = box, makeBox = makeBox, mbox = makeWrapper('mbox'), ambox = makeWrapper('ambox'), cmbox = makeWrapper('cmbox'), fmbox = makeWrapper('fmbox'), imbox = makeWrapper('imbox'), ombox = makeWrapper('ombox'), tmbox = makeWrapper('tmbox') }