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if not modules then modules = { } end modules ['scrn-wid'] = {
version = 1.001,
comment = "companion to scrn-wid.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
interactions = interactions or { }
local interactions = interactions
local attachments = { }
local comments = { }
local soundclips = { }
local renderings = { }
local linkedlists = { }
interactions.attachments = attachments
interactions.soundclips = soundclips
interactions.renderings = renderings
interactions.linkedlists = linkedlists
local jobpasses = job.passes
local codeinjections = backends.codeinjections
local nodeinjections = backends.nodeinjections
local variables = interfaces.variables
local v_auto = variables.auto
-- Symbols
function commands.presetsymbollist(list)
codeinjections.presetsymbollist(list)
end
-- Attachments
--
-- registered : unique id
-- tag : used at the tex end
-- file : name that the file has on the filesystem
-- name : name that the file will get in the output
-- title : up to the backend
-- subtitle : up to the backend
-- author : up to the backend
-- method : up to the backend (hidden == no rendering)
local nofautoattachments, lastregistered = 0, nil
local function checkregistered(specification)
local registered = specification.registered
if not registered or registered == "" or registered == v_auto then
nofautoattachments = nofautoattachments + 1
lastregistered = "attachment-" .. nofautoattachments
specification.registered = lastregistered
return lastregistered
else
return registered
end
end
local function checkbuffer(specification)
local buffer = specification.buffer
if buffer ~= "" then
specification.data = buffers.getcontent(buffer) or "<no data>"
end
end
function attachments.register(specification)
checkregistered(specification)
checkbuffer(specification)
attachments[lastregistered] = specification
return specification
end
function attachments.insert(specification)
local registered = checkregistered(specification)
local r = attachments[registered]
if r then
for k, v in next, r do
local s = specification[k]
if s == "" then
specification[k] = v
end
end
end
checkbuffer(specification)
return nodeinjections.attachfile(specification)
end
commands.registerattachment = attachments.register
function commands.insertattachment(specification)
tex.box["scrn_attachment_box_link"] = attachments.insert(specification)
end
-- Comment
function comments.insert(specification)
local buffer = specification.buffer
if buffer ~= "" then
specification.data = buffers.getcontent(buffer) or ""
end
return nodeinjections.comment(specification)
end
function commands.insertcomment(specification)
tex.box["scrn_comment_box_link"] = comments.insert(specification)
end
-- Soundclips
function soundclips.register(specification)
local tag = specification.tag
if tag and tag ~= "" then
local filename = specification.file
if not filename or filename == "" then
filename = tag
specification.file = filename
end
soundclips[tag] = specification
return specification
end
end
function soundclips.insert(tag)
local sc = soundclips[tag]
if not sc then
-- todo: message
return soundclips.register { tag = tag }
else
return sc
end
end
commands.registersoundclip = soundclips.register
commands.insertsoundclip = soundclips.insert
-- Renderings
function renderings.register(specification)
if specification.label then
renderings[specification.label] = specification
return specification
end
end
function renderings.rendering(label)
local rn = renderings[label]
if not rn then
-- todo: message
return renderings.register { label = label }
else
return rn
end
end
function renderings.var(label,key)
local rn = renderings[label]
context(rn and rn[key] or "")
end
-- Rendering:
function commands.insertrenderingwindow(specification)
codeinjections.insertrenderingwindow(specification)
end
-- Linkedlists (only a context interface)
function commands.definelinkedlist(tag)
-- no need
end
function commands.enhancelinkedlist(tag,n)
local ll = jobpasses.gettobesaved(tag)
if ll then
ll[n] = texcount.realpageno
end
end
function commands.addlinklistelement(tag)
local tobesaved = jobpasses.gettobesaved(tag)
local collected = jobpasses.getcollected(tag) or { }
local currentlink = #tobesaved + 1
local noflinks = #collected
tobesaved[currentlink] = 0
local f = collected[1] or 0
local l = collected[noflinks] or 0
local p = collected[currentlink-1] or f
local n = collected[currentlink+1] or l
context.setlinkedlistproperties(currentlink,noflinks,f,p,n,l)
-- context.ctxlatelua(function() commands.enhancelinkedlist(tag,currentlink) end)
end
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