Module:Gallery
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![]() | 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 module uses TemplateStyles: |
Implements {{gallery}}
-- This module implements {{gallery}}
local p = {}
local templatestyles = 'Template:Gallery/styles.css'
local function trim(s)
return mw.ustring.gsub(mw.ustring.gsub(s, '%s', ' '), '^%s*(.-)%s*$', '%1')
end
local tracking, preview
local function checkarg(k,v)
if k and type(k) == 'string' then
if k == 'align' or k == 'state' or k == 'style' or k == 'title' or
k == 'width' or k == 'height' or k == 'lines' or k == 'whitebg' or
k == 'mode' or k == 'footer' or k == 'perrow' or k == 'noborder' or
k:match('^alt%d+$') or k:match('^%d+$') then
-- valid
elseif k == 'captionstyle' then
if not v:match('^text%-align%s*:%s*center[;%s]*$') then
table.insert(tracking, '[[Category:Pages using gallery with the captionstyle parameter]]')
end
else
-- invalid
local vlen = mw.ustring.len(k)
k = mw.ustring.sub(k, 1, (vlen < 25) and vlen or 25)
k = mw.ustring.gsub(k, '[^%w\-_ ]', '?')
table.insert(tracking, '[[Category:Pages using gallery with unknown parameters|' .. k .. ']]')
table.insert(preview, '"' .. k .. '"')
end
end
end
function p.gallery(frame)
-- If called via #invoke, use the args passed into the invoking template.
-- Otherwise, for testing purposes, assume args are being passed directly in.
local origArgs = (type(frame.getParent) == 'function') and frame:getParent().args or frame
-- ParserFunctions considers the empty string to be false, so to preserve the previous
-- behavior of {{gallery}}, change any empty arguments to nil, so Lua will consider
-- them false too.
local args = {}
tracking, preview = {}, {}
for k, v in pairs(origArgs) do
if v ~= '' then
args[k] = v
checkarg(k,v)
end
end
if (args.mode or '') == 'packed' and (args.align or '') == '' then
args.align = 'center'
end
local tbl = mw.html.create('div')
tbl:addClass('mod-gallery')
if args.state then
tbl
:addClass('mod-gallery-collapsible')
:addClass('collapsible')
:addClass(args.state)
end
if args.style then
tbl:cssText(args.style)
else
tbl:addClass('mod-gallery-default')
end
if args.align then
tbl:addClass('mod-gallery-' .. args.align:lower())
end
if args.title then
tbl:tag('div')
:addClass('title')
:tag('div')
:wikitext(args.title)
end
local gargs = {}
gargs['class'] = 'nochecker' .. (args.noborder and '' or ' bordered-images')
gargs['widths'] = tonumber(args.width) or 180
gargs['heights'] = tonumber(args.height) or 180
gargs['style'] = 'line-height:130%;' .. (args['captionstyle'] or '')
gargs['perrow'] = args.perrow
gargs['mode'] = args.mode
if args.whitebg then
gargs['class'] = gargs['class'] .. ' whitebg'
end
local gallery = {}
local imageCount = math.ceil(#args / 2)
for i = 1, imageCount do
local img = trim(args[i*2 - 1] or '')
local caption = trim(args[i*2] or '')
local alt = trim(args['alt' .. i] or '')
if img ~= '' then
table.insert(gallery, img .. (alt ~= '' and ('|alt=' .. alt) or '') .. '|' .. caption )
end
end
tbl:tag('div')
:addClass('main')
:tag('div')
:wikitext(
frame:extensionTag{ name = 'gallery', content = '\n' .. table.concat(gallery,'\n'), args = gargs}
)
if args.footer then
tbl:tag('div')
:addClass('footer')
:tag('div')
:wikitext(args.footer)
end
local trackstr = (#tracking > 0) and table.concat(tracking, '') or ''
if #preview > 0 and frame:preprocess( "{{REVISIONID}}" ) == "" then
trackstr = tostring(mw.html.create('div')
:addClass('hatnote')
:css('color','red')
:tag('strong'):wikitext('Warning:'):done()
:wikitext('Unknown parameters: ' .. table.concat(preview, '; ')))
end
return frame:extensionTag{ name = 'templatestyles', args = { src = templatestyles} } .. tostring(tbl) .. trackstr
end
return p