Module:Portal navigation

local p = {}

local function is_rtl(lang) lang = lang or mw.getCurrentFrame:preprocess('') return require('Module:Is rtl')[lang] == true end

function get_portalicon(portalicon) if portalicon == nil then return '' else return ' ' .. portalicon .. ' '	end end

function converttolinearrgb(c) c = tonumber(c, 16) c = c / 255.0 if c <= 0.03928 then c = c/12.92 else c = ((c+0.055)/1.055) ^ 2.4 end return c end

function p.render(frame) -- Default values portalname = 'Portal' tabs = {} subtabs = {} wrc = 0

-- Default values (customizations) themecolor = '#54595d' headerstyle = '' tabsicons = {} ff = nil lang = nil wrcadditional = nil -- Populating variables for key, value in pairs(frame:getParent.args) do		if key == 'portalname' then portalname = value elseif key == 'portalicon' then portalicon = value elseif key == 'active' then active = tonumber(value) elseif key == 'wrc' then wrc = value elseif key == 'themecolor' then themecolor = value elseif key == 'headerstyle' then headerstyle = value elseif key == 'forceflip' then ff = value elseif key == 'lang' then lang = value elseif key == 'hidenav' then hidenav = value elseif key == 'hidesubnav' then hidesubnav = value elseif key == 'wrcadditional' then wrcadditional = value elseif string.find(key, 'tab') ~= nil and string.find(key, 'subtab') == nil then -- matches tab1, tab2, ... id = string.gsub(key, 'tab', '') id = tonumber(id) tabs[id] = value elseif string.find(key, 'icon') ~= nil then -- matches icon1, icon2, etc.   		id = string.gsub(key, 'icon', '') id = tonumber(id) tabsicons[id] = value elseif string.find(key, 'subtab') ~= nil then -- matches subtab1-1, etc.   		id = string.gsub(key, 'subtab', '') -- Subtab params take the form [prime tab]-[sub tab] id = mw.text.split(id, '-') primetab = tonumber(id[1]) subtab = tonumber(id[2]) if subtabs[primetab] == nil then subtabs[primetab] = {} end subtabs[primetab][subtab] = value end end if ff == 'yes' or ff == 'true' or ff == '1' then ff = true end if hidenav == 'yes' or hidenav == 'true' or hidenav == '1' then hidenav = true end if hidesubnav == 'yes' or hidesubnav == 'true' or hidesubnav == '1' then hidesubnav = true end

-- Constructing header -- Relevant variables: portalname, wrc, themecolor, headerstyle -- The text color in the header is automatically chosen based on the best contrast -- https://stackoverflow.com/questions/3942878/how-to-decide-font-color-in-white-or-black-depending-on-background-color headertextcolor = '#fff' rgb = string.gsub(themecolor, '#', '') rgb = mw.text.split(rgb, '') if #rgb == 6 then r = rgb[1] .. rgb[2] g = rgb[3] .. rgb[4] b = rgb[5] .. rgb[6] elseif #rgb == 3 then r = rgb[1] .. rgb[1] g = rgb[2] .. rgb[2] b = rgb[3] .. rgb[3] end r = converttolinearrgb(r) g = converttolinearrgb(g) b = converttolinearrgb(b) luminance = 0.2126 * r + 0.7152 * g + 0.0722 * b	if luminance > 0.179 then headertextcolor = '#000' end

-- Applying customizations to headerstyle headerstyle = 'background:' .. themecolor .. '; color:' .. headertextcolor .. ';'		.. headerstyle header = ' '

if ff ~= true or (ff == true and not is_rtl) then header = header .. get_portalicon(portalicon) .. portalname .. ' '	else header = header .. portalname .. get_portalicon(portalicon) .. ' '	end

if wrc == '1' or wrc == 1 or wrc == 'true' or wrc == true or wrc == 'yes' then badgeargs = {} if ff == true then badgeargs['forceflip'] = ff		end if wrcadditional ~= nil then badgeargs['additional'] = wrcadditional end

header = frame:expandTemplate{ title = 'Wikimedia Resource Center badge', args = badgeargs } .. '\n\n' .. header end -- Constructing the rest -- Relevant variables: themecolor tabs tabsicons active subtabs

body = ''

if hidenav ~= true then body = body .. ''

for index, pagelink in ipairs(tabs) do			-- Open TOC entry container body = body .. '' -- Create the tab itself local entryclass = 'portal-navigation-entry' local entrystyle = '' if index == active then if subtabs[index] == nil or hidesubnav == true then entrystyle = ' style="border-bottom-color:' .. themecolor .. ';"' else entryclass = entryclass .. ' portal-navigation-entry-has-subtabs' end end icon = '' if tabsicons[index] ~= nil then icon = ' ' .. tabsicons[index] .. ' '			end body = body .. ' '				.. icon .. pagelink .. ' '			-- If the tab is active, show the subnav if there is any if index == active and subtabs[index] ~= nil and hidesubnav ~= true then body = body .. '' for _, subpagelink in ipairs(subtabs[index]) do body = body .. '' .. subpagelink .. '' end body = body .. '' end -- Close TOC entry container body = body .. '' end body = body .. '' end

local templatestyles = frame:extensionTag('templatestyles', '', {src = 'Module:Portal navigation/styles.css'})

local classes = 'portal-navigation' local attributes = '' if lang then attributes = ' lang="' .. lang .. '" dir="' .. (is_rtl(lang) and 'rtl' or 'ltr') .. '"' end if ff == true then classes = classes .. ' portal-navigation-force-' .. (is_rtl and 'rtl' or 'ltr') end

return ' ' .. templatestyles .. header .. body .. ' ' end

return p