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Cleanup page actions

This commit is contained in:
Marcel Krüger 2020-07-31 03:11:53 +02:00
parent f37c76a187
commit ec6aa206e2
1 changed files with 23 additions and 26 deletions
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49
luametalatex-back-pdf.lua
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@ -283,33 +283,29 @@ local function get_action_attr(p, action, is_link)
if action_type == 2 then
error[[FIXME: Threads are currently unsupported]] -- TODO
elseif action_type == 0 then
error[[FIXME]]
elseif action_type == 1 then -- GoTo
local id = action.id
if id then
if file then
assert(type(id) == "string")
action_attr = action_attr .. "/S/GoToR/D" .. pdf_bytestring(id) .. ">>"
else
local dest = dests[id]
if not dest then
dest = pfile:getobj()
dests[id] = dest
end
if type(id) == "string" then
action_attr = action_attr .. "/S/GoTo/D" .. pdf_bytestring(id) .. ">>"
else
action_attr = string.format("%s/S/GoTo/D %i 0 R>>", action_attr, dest)
end
end
local page = assert(action.page, 'Page action must contain a page')
local tokens = action.tokens
if file then
action_attr = string.format("%s/S/GoToR/D[%i %s]>>", action_attr, page-1, tokens)
else
id = assert(action.page, 'GoTo action must contain either an id or a page')
local tokens = action.tokens
if file then
action_attr = string.format("%s/S/GoToR/D[%i %s]>>", action_attr, id-1, tokens)
local page_objnum = pfile:reservepage(page)
action_attr = string.format("%s/S/GoTo/D[%i 0 R %s]>>", action_attr, page_objnum, tokens)
end
elseif action_type == 1 then -- GoTo
local id = assert(action.id, 'GoTo action must contain an id')
if file then
assert(type(id) == "string")
action_attr = action_attr .. "/S/GoToR/D" .. pdf_bytestring(id) .. ">>"
else
local dest = dests[id]
if not dest then
dest = pfile:getobj()
dests[id] = dest
end
if type(id) == "string" then
action_attr = action_attr .. "/S/GoTo/D" .. pdf_bytestring(id) .. ">>"
else
local page_objnum = pfile:reservepage(id)
action_attr = string.format("%s/S/GoTo/D[%i 0 R %s]>>", action_attr, page_objnum, tokens)
action_attr = string.format("%s/S/GoTo/D %i 0 R>>", action_attr, dest)
end
end
end
@ -587,9 +583,10 @@ local function scan_action()
}
if token.scan_keyword'page' then
assert(action_type == 1)
action_type = 0
local page = token.scan_int()
if page <= 0 then
error[[page must be positive in action specified]]
error[[page must be positive in action specification]]
end
action.page = page
action.tokens = token.scan_string()