52 lines
1.9 KiB
Rust
52 lines
1.9 KiB
Rust
//! Loading documents: by URL, with a password, or as text.
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use std::io;
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use super::{Doc, Worker};
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use crate::ipc::{Pack, Unpack, tag};
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impl Worker {
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/// Loads `url`; macros never run (LOK-11).
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pub fn load(&mut self, url: &str) -> io::Result<Doc> {
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self.unlock(url, "")
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}
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/// Loads text `url` as a sheet, read as `how` says.
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pub fn import(&mut self, url: &str, how: &crate::sheet::csv::Import) -> io::Result<Doc> {
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use crate::sheet::csv::{COLUMNS, ENCODINGS};
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let at = |found: Option<usize>| found.expect("a listed choice") as u64;
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let pack = Pack::new()
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.str(url)
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.u64(u64::from(how.separator))
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.u64(how.quote.map_or(0, u64::from))
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.u64(at(ENCODINGS.iter().position(|e| *e == how.encoding)))
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.u64(how.columns.len() as u64);
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let pack = how.columns.iter().fold(pack, |pack, column| {
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pack.u64(at(COLUMNS.iter().position(|c| c == column)))
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});
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let payload = self.request(tag::IMPORT, &pack.bytes())?;
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self.opened(&payload)
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}
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/// Loads `url` with its password; a locked one is PermissionDenied.
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pub fn unlock(&mut self, url: &str, password: &str) -> io::Result<Doc> {
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let request = Pack::new().str(url).str(password).bytes();
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let payload = self.request(tag::LOAD, &request).map_err(|error| {
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if error.to_string() == crate::ipc::LOCKED {
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io::Error::new(io::ErrorKind::PermissionDenied, error.to_string())
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} else {
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error
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}
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})?;
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self.opened(&payload)
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}
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/// A load's reply: the document's number and kind.
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fn opened(&mut self, payload: &[u8]) -> io::Result<Doc> {
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let mut reply = Unpack::new(payload);
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let (id, kind) = (reply.u64()?, reply.u64()?);
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self.feed.opened(id);
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Ok(Doc { worker: self.session, id, rev: 0, kind })
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}
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}
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