# Module:Navbar

local p = {}
local cfg = mw.loadData('Module:Navbar/configuration')  
local function get_title_arg(is_collapsible, template)
local title_arg = 1
if is_collapsible then title_arg = 2 end
if template then title_arg = 'template' end
return title_arg
end  
local function choose_links(template, args)
-- The show table indicates the default displayed items.
-- view, talk, edit, hist, move, watch
-- TODO: Move to configuration.
local show = {true, true, true, false, false, false}
if template then
show[2] = false
show[3] = false
local index = {t = 2, d = 2, e = 3, h = 4, m = 5, w = 6,
talk = 2, edit = 3, hist = 4, move = 5, watch = 6}
-- TODO: Consider removing TableTools dependency.
for _, v in ipairs(require ('Module:TableTools').compressSparseArray(args)) do
local num = index[v]
if num then show[num] = true end
end
end  
local remove_edit_link = args.noedit
if remove_edit_link then show[3] = false end  
return show  
end  
local function add_link(link_description, ul, is_mini, font_style)
local l
if link_description.url then
l = {'[', '', ']'}
else
l = {*, *}
end
ul:tag('li')
:addClass('nv-' .. link_description.full)
:wikitext(l[1] .. link_description.link .. l[2])
:tag(is_mini and 'abbr' or 'span')
:attr('title', link_description.html_title)
:cssText(font_style)
:wikitext(is_mini and link_description.mini or link_description.full)
:done
:wikitext(l[3])
:done
end  
local function make_list(title_text, has_brackets, displayed_links, is_mini, font_style)  
local title = mw.title.new(mw.text.trim(title_text), cfg.title_namespace)
if not title then
error(cfg.invalid_title .. title_text)
end
local talkpage = title.talkPageTitle and title.talkPageTitle.fullText or ''  
-- TODO: Get link_descriptions and show into the configuration module.
-- link_descriptions should be easier...
local link_descriptions = {
{ ['mini'] = 'பா', ['full'] = 'பார்', ['html_title'] = 'இவ்வார்ப்புருவைப் பார்க்க',
['link'] = title.fullText, ['url'] = false },
{ ['mini'] = 'உ', ['full'] = 'உரை', ['html_title'] = 'இவ்வார்ப்புரு குறித்து உரையாடுக',
['link'] = talkpage, ['url'] = false },
{ ['mini'] = 'தொ', ['full'] = 'தொகு', ['html_title'] = 'இவ்வார்ப்புருவைத் தொகுக்க',
['link'] = 'Special:EditPage/' .. title.fullText, ['url'] = false },
{ ['mini'] = 'வ', ['full'] = 'வரலாறு', ['html_title'] = 'இவ்வார்ப்புருவின் வரலாறு',
['link'] = 'Special:PageHistory/' .. title.fullText, ['url'] = false },
{ ['mini'] = 'm', ['full'] = 'move', ['html_title'] = 'Move this template',
['link'] = mw.title.new('Special:Movepage'):fullUrl('target='..title.fullText), ['url'] = true },
{ ['mini'] = 'w', ['full'] = 'watch', ['html_title'] = 'Watch this template',
['link'] = title:fullUrl('action=watch'), ['url'] = true }
}  
local ul = mw.html.create('ul')
if has_brackets then
ul:addClass(cfg.classes.brackets)
:cssText(font_style)
end  
for i, _ in ipairs(displayed_links) do
if displayed_links[i] then add_link(link_descriptions[i], ul, is_mini, font_style) end
end
return ul:done  
end  
function p._navbar(args)  
-- TODO: We probably don't need both fontstyle and fontcolor...
local font_style = args.fontstyle
local font_color = args.fontcolor
local is_collapsible = args.collapsible
local is_mini = args.mini
local is_plain = args.plain  
local collapsible_class = nil
if is_collapsible then
collapsible_class = cfg.classes.collapsible
if not is_plain then is_mini = 1 end
if font_color then
font_style = (font_style or '') .. '; color: ' .. font_color .. ';'
end
end  
local navbar_style = args.style
local div = mw.html.create:tag('div')
div
:addClass(cfg.classes.navbar)
:addClass(cfg.classes.plainlinks)
:addClass(cfg.classes.horizontal_list)
:addClass(collapsible_class) -- we made the determination earlier
:cssText(navbar_style)  
if is_mini then div:addClass(cfg.classes.mini) end  
local box_text = (args.text or cfg.box_text) .. ' '
-- the concatenated space guarantees the box text is separated
if not (is_mini or is_plain) then
div
:tag('span')
:addClass(cfg.classes.box_text)
:cssText(font_style)
:wikitext(box_text)
end  
local template = args.template
local displayed_links = choose_links(template, args)
local has_brackets = args.brackets
local title_arg = get_title_arg(is_collapsible, template)
local title_text = args[title_arg] or (':' .. mw.getCurrentFrame:getParent:getTitle)
local list = make_list(title_text, has_brackets, displayed_links, is_mini, font_style)
div:node(list)  
if is_collapsible then
local title_text_class
if is_mini then
title_text_class = cfg.classes.collapsible_title_mini
else
title_text_class = cfg.classes.collapsible_title_full
end
div:done
:tag('div')
:addClass(title_text_class)
:cssText(font_style)
:wikitext(args[1])
end  
local = mw.getCurrentFrame
-- hlist -> navbar is best-effort to preserve old Common.css ordering.
return :extensionTag{
name = 'templatestyles', args = { src = cfg.hlist_templatestyles }
} .. :extensionTag{
name = 'templatestyles', args = { src = cfg.templatestyles }
} .. tostring(div:done)
end  
function p.navbar
return p._navbar(require('Module:Arguments').getArgs)
end  
return p