Difference between revisions of "Module:Navbar"
From MINR.ORG WIKI
(handle expensive parser function limit without killing the box) |
(also trap talk title) |
||
Line 21: | Line 21: | ||
function getTitle( pageName ) | function getTitle( pageName ) | ||
pageName = trim( pageName ); | pageName = trim( pageName ); | ||
+ | local page_title, talk_page_title; | ||
+ | |||
if mw.ustring.sub(pageName, 1, 1) == ':' then | if mw.ustring.sub(pageName, 1, 1) == ':' then | ||
− | + | page_title = mw.title.new( mw.ustring.sub(pageName, 2) ); | |
else | else | ||
− | + | page_title = mw.title.new( pageName, 'Template' ); | |
end | end | ||
+ | |||
+ | if page_title then | ||
+ | talk_page_title = page_title.talkPageTitle; | ||
+ | else | ||
+ | talk_page_title = nil; | ||
+ | end | ||
+ | |||
+ | return page_title, talk_page_title; | ||
end | end | ||
Line 33: | Line 43: | ||
end | end | ||
− | local good, title; | + | local good, title, talk_title; |
− | good, title = pcall( getTitle, args[1] ); | + | good, title, talk_title = pcall( getTitle, args[1] ); |
if not good then | if not good then | ||
return error('Expensive parser function limit exceeded'); | return error('Expensive parser function limit exceeded'); | ||
Line 44: | Line 54: | ||
local mainpage = title.fullText; | local mainpage = title.fullText; | ||
− | local talkpage = | + | local talkpage = talk_title and talk_title.fullText or '' |
local editurl = title:fullUrl( 'action=edit' ); | local editurl = title:fullUrl( 'action=edit' ); | ||
Revision as of 06:53, 2 April 2013
This Lua module is used on 11,200,000+ pages. To avoid large-scale disruption and unnecessary server load, any changes to this module should first be tested in its /sandbox or /testcases subpages. The tested changes can then be added to this page in a single edit. Please consider discussing any changes on 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. |
This is a Lua implementation of {{Navbar}}. It is used in Module:Navbox.
local p = {} local HtmlBuilder = require('Module:HtmlBuilder') function trim(s) return mw.ustring.match( s, "^%s*(.-)%s*$" ) end function error(s) local span = HtmlBuilder.create('span') span .addClass('error') .css('float', 'left') .css('white-space', 'nowrap') .wikitext('Error: ' .. s) return tostring(span) end function getTitle( pageName ) pageName = trim( pageName ); local page_title, talk_page_title; if mw.ustring.sub(pageName, 1, 1) == ':' then page_title = mw.title.new( mw.ustring.sub(pageName, 2) ); else page_title = mw.title.new( pageName, 'Template' ); end if page_title then talk_page_title = page_title.talkPageTitle; else talk_page_title = nil; end return page_title, talk_page_title; end function _navbar( args ) if not args[1] then return error('No name provided') end local good, title, talk_title; good, title, talk_title = pcall( getTitle, args[1] ); if not good then return error('Expensive parser function limit exceeded'); end if not title then return error('Page does not exist') end local mainpage = title.fullText; local talkpage = talk_title and talk_title.fullText or '' local editurl = title:fullUrl( 'action=edit' ); local viewLink, talkLink, editLink = 'view', 'talk', 'edit' if args.mini then viewLink, talkLink, editLink = 'v', 't', 'e' end local div = HtmlBuilder.create( 'div' ) div .addClass( 'noprint' ) .addClass( 'plainlinks' ) .addClass( 'hlist' ) .addClass( 'navbar') .cssText( args.style ) if args.mini then div.addClass('mini') end if not (args.mini or args.plain) then div .tag( 'span' ) .css( 'word-spacing', 0 ) .cssText( args.fontstyle ) .wikitext( args.text or 'This box:' ) .wikitext( ' ' ) end if args.brackets then div .tag('span') .css('margin-right', '-0.125em') .cssText( args.fontstyle ) .wikitext( '[' ) .newline(); end local ul = div.tag('ul'); ul .tag( 'li' ) .addClass( 'nv-view' ) .wikitext( '[[' .. mainpage .. '|' ) .tag( 'span ' ) .attr( 'title', 'View this template' ) .cssText( args.fontstyle or '' ) .wikitext( viewLink ) .done() .wikitext( ']]' ) .done() .tag( 'li' ) .addClass( 'nv-talk' ) .wikitext( '[[' .. talkpage .. '|' ) .tag( 'span ' ) .attr( 'title', 'Discuss this template' ) .cssText( args.fontstyle or '' ) .wikitext( talkLink ) .done() .wikitext( ']]' ); if not args.noedit then ul .tag( 'li' ) .addClass( 'nv-edit' ) .wikitext( '[' .. editurl .. ' ' ) .tag( 'span ' ) .attr( 'title', 'Edit this template' ) .cssText( args.fontstyle or '' ) .wikitext( editLink ) .done() .wikitext( ']' ); end if args.brackets then div .tag('span') .css('margin-left', '-0.125em') .cssText( args.fontstyle or '' ) .wikitext( ']' ) .newline(); end return tostring(div) end function p.navbar(frame) local origArgs -- If called via #invoke, use the args passed into the invoking template. -- Otherwise, for testing purposes, assume args are being passed directly in. if frame == mw.getCurrentFrame() then origArgs = frame:getParent().args else origArgs = frame end -- ParserFunctions considers the empty string to be false, so to preserve the previous -- behavior of {{navbar}}, change any empty arguments to nil, so Lua will consider -- them false too. args = {} for k, v in pairs(origArgs) do if v ~= '' then args[k] = v end end return _navbar(args) end return p