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File: lightbox.lua
-- lightbox.lua -- Copyright (C) 2020-2022 Posit Software, PBC local function lightbox_auto(meta) -- If the mode is auto, we need go ahead and -- run if there are any images (ideally we would) -- filter to images in the body, but that can be -- left for future me to deal with -- supports: -- lightbox: true -- lightbox: auto -- or -- lightbox: -- match: auto local lbMeta = meta.lightbox if lbMeta ~= nil and type(lbMeta) == 'table' then if lbMeta[1] ~= nil then if lbMeta[1]['text'] == "auto" then return true end elseif lbMeta.match ~= nil and pandoc.utils.stringify(lbMeta.match) == 'auto' then return true end elseif lbMeta == true then return true elseif lbMeta == false then return false end -- return nil so caller can know the difference between -- explicitly off and omitted return nil end local function el_has_lightbox(el) local has_lightbox = el.attributes["lightbox"] ~= nil or el.classes:includes('lightbox') return has_lightbox end return { automatic = lightbox_auto, el_has_lightbox = el_has_lightbox }