模块:Message box

    来自Springfield Minecraft Server Wiki
    模块文档

    {{Mbox}}系列模板的Lua实现。

    -- 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 yesno = require('Module:Yesno')
    
    -- Get a language object for formatDate and ucfirst.
    local lang = mw.language.getContentLanguage()
    
    -- Define constants
    local CONFIG_MODULE = 'Module:Message box/configuration'
    local DEMOSPACES = {talk = 'tmbox', image = 'imbox', file = 'imbox', category = 'cmbox', article = 'ambox', main = 'ambox'}
    local TEMPLATE_STYLES_BASE = 'Module:Message_box/core.css'
    local TEMPLATE_STYLES_PER_NS = 'Module:Message_box/%s.css'
    local TEMPLATE_STYLES_SMALL = 'Module:Message_box/small.css'
    
    --------------------------------------------------------------------------------
    -- 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 = {}
    
    	obj.boxType = boxType
    
    	-- 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
    				obj.boxType = 'tmbox'
    			else
    				-- default to ombox
    				obj.cfg = cfg.ombox
    				obj.boxType = 'ombox'
    			end
    		elseif ns == 0 then
    			obj.cfg = cfg.ambox -- main namespace
    			obj.boxType = 'ambox'
    		elseif ns == 6 then
    			obj.cfg = cfg.imbox -- file namespace
    			obj.boxType = 'imbox'
    		elseif ns == 14 then
    			obj.cfg = cfg.cmbox -- category namespace
    			obj.boxType = 'cmbox'
    		else
    			local nsTable = mw.site.namespaces[ns]
    			if nsTable and nsTable.isTalk then
    				obj.cfg = cfg.tmbox -- any talk namespace
    				obj.boxType = 'tmbox'
    			else
    				obj.cfg = cfg.ombox -- other namespaces or invalid input
    				obj.boxType = 'ombox'
    			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
    
    	-- 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_]*(.*)$'
    			) or mw.ustring.match(
    				self.name,
    				'^模板[%s_]*:[%s_]*(.*)$'
    			) 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 = '此' .. (cfg.sectionDefault or '页面')
    			elseif type(args.sect) == 'string' then
    				sect = '此' .. 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|讨论]])', talkLink)
    				else
    					talkText = '相关讨论可见于'
    					if talkArgIsTalkPage then
    						talkText = string.format(
    							'%s [[%s|%s]].',
    							talkText,
    							talk,
    							talkTitle.prefixedText
    						)
    					else
    						talkText = string.format(
    							'%s the [[%s#%s|讨论页]].',
    							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
    		local isoTime = lang:formatDate('c')
    		if args.date and args.date ~= '' then
    			date = args.date
    		elseif args.date == '' and self.isTemplatePage then
    			date = lang:formatDate('Y年F')
    		end
    		if date then
    			self.date = string.format(' <small class="date-container">(<time class="date" datetime="%s">%s</time>)</small>', isoTime, 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|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
    
    	-- set 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 = '自'
    	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, '模板中使用无效日期参数的条目')
    			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
    			if not (
    				self.title.text == 'Ambox' or
    				self.title.text == 'Cmbox' or
    				self.title.text == 'Fmbox' or
    				self.title.text == 'Imbox' or
    				self.title.text == 'Mbox' or
    				self.title.text == 'Ombox' or
    				self.title.text == 'Tmbox') then
    				templateCat = templateErrorCategory
    			end
    		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', '需要修复的消息框', allSort)
    	end
    	if self.isSubstituted then
    		self:addCat('all', '含有被错误替换引用的模板的页面')
    	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(
    				'模板<code>%s[[Template:%s|%s]]%s</code>被错误地替换。',
    				mw.text.nowiki('{{'), self.name, self.name, mw.text.nowiki('}}')
    			))
    	end
    
    	local templatestylesText = mw.getCurrentFrame():extensionTag{
    		name = 'templatestyles',
    		args = { src = TEMPLATE_STYLES_BASE },
    	} .. mw.getCurrentFrame():extensionTag{
    		name = 'templatestyles',
    		args = { src = TEMPLATE_STYLES_PER_NS:format(self.boxType) },
    	}
    
    	if self.isSmall then
    		templatestylesText = templatestylesText .. mw.getCurrentFrame():extensionTag{
    			name = 'templatestyles',
    			args = { src = TEMPLATE_STYLES_SMALL },
    		}
    	end
    
    	-- 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
    		templatestylesText = templatestylesText .. mw.getCurrentFrame():extensionTag{
    			name = 'templatestyles',
    			args = { src = self.templatestyles },
    		}
    	end
    
    	root
    		:tag('div')
    		:addClass('component-template_styles')
    		:wikitext(templatestylesText)
    
    	-- Create the box table.
    	local boxTable
    	-- Check for fmbox because not all interface messages have mw-parser-output
    	-- which is necessary for TemplateStyles. Add the wrapper class if it is and
    	-- then start the actual mbox, else start the mbox.
    	if self.boxType == 'fmbox' then
    		boxTable = root:tag('div')
    			:addClass('mw-parser-output')
    			:tag('div')
    	else
    		boxTable = root:tag('div')
    	end
    
    	boxTable:attr('id', self.id or nil)
    	boxTable:addClass('template-message_box')
    	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('div'):addClass('mbox-container')
    	if self.imageLeft then
    		local imageLeftCell = row:tag('div'):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('div')
    			:addClass('mbox-empty-cell')
    	end
    
    	-- Add the text.
    	local textCell = row:tag('div'):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('div'):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('div')
    			:addClass('mbox-below')
    			:tag('div')
    				: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(
    				'此消息框使用无效的“type=%s”参数,需要修复。',
    				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)