Misplaced Pages

Revision as of 21:45, 9 March 2024

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.

This Lua module is used on approximately 26,000 pages and changes may be widely noticed. Test changes in the module's /sandbox or /testcases subpages, or in your own module sandbox. Consider discussing changes on the talk page before implementing them.

This module depends on the following other modules: Module:Shortcut/config (sandbox) Module:List (sandbox) Module:Yesno (sandbox) Module:Arguments (sandbox)

This module uses TemplateStyles: Module:Shortcut/styles.css (sandbox)

This module makes a box showing the shortcut links to a page.

Usage

From wikitext

From wikitext, this module should be called from a template, usually {{shortcut}}. Please see the template page for documentation. However, it can also be called using the syntax {{#invoke:shortcut|main|arguments}}.

From Lua

To use this module from Lua, first load it.

local mShortcut = require('Module:Shortcut')

Then you can create shortcut boxes with the following syntax:

mShortcut._main(shortcuts, options, frame, cfg)

• shortcuts is an array of shortcut page names. (required)
• options is a table of options. The following keys are supported:
  • msg - a message to leave after the list of shortcuts.
  • category - if set to false (or a value regarded as false by Module:Yesno, such as "no"), categories are suppressed.
• frame is a frame object. This is optional, and only intended to be used internally.
• cfg is a table of config values. This is optional, and is only intended for testing.

Technical details

This module has a configuration file at Module:Shortcut/config. It can be used to translate this module into different languages or to change details like category names.

-- This module implements {{shortcut}}.

-- Set constants
local CONFIG_MODULE = 'Module:Shortcut/config'

-- Load required modules
local checkType = require('libraryUtil').checkType
local yesno = require('Module:Yesno')

local p = {}

local function message(msg, ...)
	return mw.message.newRawMessage(msg, ...):plain()
end

local function makeCategoryLink(cat)
	return string.format(']', mw.site.namespaces.name, cat)
end

function p._main(shortcuts, options, frame, cfg)
	checkType('_main', 1, shortcuts, 'table')
	checkType('_main', 2, options, 'table', true)
	options = options or {}
	frame = frame or mw.getCurrentFrame()
	cfg = cfg or mw.loadData(CONFIG_MODULE)
	local templateMode = options.template and yesno(options.template)
	local redirectMode = options.redirect and yesno(options.redirect)
	local isCategorized = not options.category or yesno(options.category) ~= false

	-- Validate shortcuts
	for i, shortcut in ipairs(shortcuts) do
		if type(shortcut) ~= 'string' or #shortcut < 1 then
			error(message(cfg, i), 2)
		end
	end

	-- Make the list items. These are the shortcuts plus any extra lines such
	-- as options.msg.
	local listItems = {}
	for i, shortcut in ipairs(shortcuts) do
		local templatePath, prefix
		if templateMode then
			-- Namespace detection
			local titleObj = mw.title.new(shortcut, 10)
			if titleObj.namespace == 10 then
				templatePath = titleObj.fullText
			else
				templatePath = shortcut
			end
			prefix = options or options.pre or ''
		end
		if options.target and yesno(options.target) then
			listItems = templateMode
				and string.format("&#123;&#123;%s]&#125;&#125;", prefix, templatePath, shortcut)
				or string.format("]", shortcut)
		else
			listItems = frame:expandTemplate{
				title = 'No redirect',
				args = templateMode and {templatePath, shortcut} or {shortcut, shortcut}
			}
			if templateMode then
				listItems = string.format("&#123;&#123;%s%s&#125;&#125;", prefix, listItems)
			end
		end
	end
	table.insert(listItems, options.msg)

	-- Return an error if we have nothing to display
	if #listItems < 1 then
		local msg = cfg
		msg = string.format('<strong class="error">%s</strong>', msg)
		if isCategorized and cfg then
			msg = msg .. makeCategoryLink(cfg)
		end
		return msg
	end

	local root = mw.html.create()
	root:wikitext(frame:extensionTag{ name = 'templatestyles', args = { src = 'Module:Shortcut/styles.css'} })
	-- Anchors
	local anchorDiv = root
		:tag('div')
			:addClass('module-shortcutanchordiv')
	for i, shortcut in ipairs(shortcuts) do
		local anchor = mw.uri.anchorEncode(shortcut)
		anchorDiv:tag('span'):attr('id', anchor)
	end

	-- Shortcut heading
	local shortcutHeading
	do
		local nShortcuts = #shortcuts
		if nShortcuts > 0 then
			local headingMsg = options or
				redirectMode and cfg or
				cfg
			shortcutHeading = message(headingMsg, nShortcuts)
			shortcutHeading = frame:preprocess(shortcutHeading)
		end
	end

	-- Shortcut box
	local shortcutList = root
		:tag('div')
			:addClass('side-box module-shortcutboxplain noprint')
			:attr('role', 'note')
	if options.float and options.float:lower() == 'left' then
		shortcutList:addClass('module-shortcutboxleft')
	end
	if options.clear and options.clear ~= '' then
		shortcutList:css('clear', options.clear)
	end
	if shortcutHeading then
		shortcutList
			:tag('div')
				:addClass('module-shortcutlist')
				:wikitext(shortcutHeading)
	end
	
	local ubl = require('Module:List').unbulleted(listItems)
	shortcutList:wikitext(ubl)
	return tostring(root)
end

function p.main(frame)
	local args = require('Module:Arguments').getArgs(frame)

	-- Separate shortcuts from options
	local shortcuts, options = {}, {}
	for k, v in pairs(args) do
		if type(k) == 'number' then
			shortcuts = v
		else
			options = v
		end
	end

	-- Compress the shortcut array, which may contain nils.
	local function compressArray(t)
		local nums, ret = {}, {}
		for k in pairs(t) do
			nums = k
		end
		table.sort(nums)
		for i, num in ipairs(nums) do
			ret = t
		end
		return ret
	end
	shortcuts = compressArray(shortcuts)

	return p._main(shortcuts, options, frame)
end

return p

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