mirror of
https://github.com/koreader/koreader
synced 2024-11-18 03:25:46 +00:00
33 lines
920 B
Lua
33 lines
920 B
Lua
require "unireader"
|
|
require "inputbox"
|
|
|
|
PDFReader = UniReader:new{}
|
|
|
|
-- open a PDF file and its settings store
|
|
function PDFReader:open(filename)
|
|
-- muPDF manages its own cache, set second parameter
|
|
-- to the maximum size you want it to grow
|
|
local ok
|
|
ok, self.doc = pcall(pdf.openDocument, filename, 64*1024*1024)
|
|
if not ok then
|
|
return false, self.doc -- will contain error message
|
|
end
|
|
if self.doc:needsPassword() then
|
|
local password = InputBox:input(height-100, 100, "Pass:")
|
|
if not password or not self.doc:authenticatePassword(password) then
|
|
self.doc:close()
|
|
self.doc = nil
|
|
return false, "wrong or missing password"
|
|
end
|
|
-- password wrong or not entered
|
|
end
|
|
local ok, err = pcall(self.doc.getPages, self.doc)
|
|
if not ok then
|
|
-- for PDFs, they might trigger errors later when accessing page tree
|
|
self.doc:close()
|
|
self.doc = nil
|
|
return false, "damaged page tree"
|
|
end
|
|
return true
|
|
end
|