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Flatten implementation of net::file_loader::factory.

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This commit is contained in:
Corey Farwell 2016-04-15 09:11:43 -04:00
parent 6c5cfb738a
commit 50c6d937a5
1 changed files with 45 additions and 45 deletions
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90
components/net/file_loader.rs
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@ -72,54 +72,54 @@ pub fn factory(load_data: LoadData,
cancel_listener: CancellationListener) {
assert!(&*load_data.url.scheme == "file");
spawn_named("file_loader".to_owned(), move || {
let file_path: Result<PathBuf, ()> = load_data.url.to_file_path();
match file_path {
Ok(file_path) => {
match File::open(&file_path) {
Ok(ref mut reader) => {
if cancel_listener.is_cancelled() {
if let Ok(progress_chan) = get_progress_chan(load_data, file_path,
senders, classifier, &[]) {
let _ = progress_chan.send(Done(Err("load cancelled".to_owned())));
}
return;
}
match read_block(reader) {
Ok(ReadStatus::Partial(buf)) => {
let progress_chan = get_progress_chan(load_data, file_path,
senders, classifier, &buf).ok().unwrap();
progress_chan.send(Payload(buf)).unwrap();
let read_result = read_all(reader, &progress_chan, &cancel_listener);
if let Ok(load_result) = read_result {
match load_result {
LoadResult::Cancelled => return,
LoadResult::Finished => progress_chan.send(Done(Ok(()))).unwrap(),
}
}
}
Ok(ReadStatus::EOF) => {
if let Ok(chan) = get_progress_chan(load_data, file_path,
senders, classifier, &[]) {
let _ = chan.send(Done(Ok(())));
}
}
Err(e) => {
send_error(load_data.url, e, senders);
}
};
}
Err(_) => {
// this should be one of the three errors listed in
// http://doc.rust-lang.org/std/fs/struct.OpenOptions.html#method.open
// but, we'll go for a "file not found!"
let url = Url::parse("about:not-found").unwrap();
let load_data_404 = LoadData::new(load_data.context, url, None);
about_loader::factory(load_data_404, senders, classifier, cancel_listener)
let file_path = match load_data.url.to_file_path() {
Ok(file_path) => file_path,
Err(_) => {
send_error(load_data.url, "Could not parse path".to_owned(), senders);
return;
},
};
let mut file = File::open(&file_path);
let reader = match file {
Ok(ref mut reader) => reader,
Err(_) => {
// this should be one of the three errors listed in
// http://doc.rust-lang.org/std/fs/struct.OpenOptions.html#method.open
// but, we'll go for a "file not found!"
let url = Url::parse("about:not-found").unwrap();
let load_data_404 = LoadData::new(load_data.context, url, None);
about_loader::factory(load_data_404, senders, classifier, cancel_listener);
return;
}
};
if cancel_listener.is_cancelled() {
if let Ok(progress_chan) = get_progress_chan(load_data, file_path,
senders, classifier, &[]) {
let _ = progress_chan.send(Done(Err("load cancelled".to_owned())));
}
return;
}
match read_block(reader) {
Ok(ReadStatus::Partial(buf)) => {
let progress_chan = get_progress_chan(load_data, file_path,
senders, classifier, &buf).ok().unwrap();
progress_chan.send(Payload(buf)).unwrap();
let read_result = read_all(reader, &progress_chan, &cancel_listener);
if let Ok(load_result) = read_result {
match load_result {
LoadResult::Cancelled => return,
LoadResult::Finished => progress_chan.send(Done(Ok(()))).unwrap(),
}
}
}
Err(_) => {
send_error(load_data.url, "Could not parse path".to_owned(), senders);
Ok(ReadStatus::EOF) => {
if let Ok(chan) = get_progress_chan(load_data, file_path,
senders, classifier, &[]) {
let _ = chan.send(Done(Ok(())));
}
}
Err(e) => {
send_error(load_data.url, e, senders);
}
}
});