71 lines
2.1 KiB
Rust
71 lines
2.1 KiB
Rust
use glib;
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use gtk;
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use hammond_data::index_feed;
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use hammond_data::models::Source;
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use hammond_data::index_feed::Database;
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use std::{thread, time};
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use std::cell::RefCell;
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use std::sync::mpsc::{channel, Receiver};
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use views::podcasts_view;
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type Foo = RefCell<Option<(Database, gtk::Stack, Receiver<bool>)>>;
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// Create a thread local storage that will store the arguments to be transfered.
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thread_local!(static GLOBAL: Foo = RefCell::new(None));
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/// Update the rss feed(s) originating from `Source`.
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/// If `source` is None, Fetches all the `Source` entries in the database and updates them.
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/// `delay` represents the desired time in seconds for the thread to sleep before executing.
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/// When It's done,it queues up a `podcast_view` refresh.
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pub fn refresh_feed(
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db: &Database,
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stack: >k::Stack,
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source: Option<Vec<Source>>,
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delay: Option<u64>,
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) {
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// Create a async channel.
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let (sender, receiver) = channel();
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// Pass the desired arguments into the Local Thread Storage.
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GLOBAL.with(clone!(db, stack => move |global| {
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*global.borrow_mut() = Some((db, stack, receiver));
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}));
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thread::spawn(clone!(db => move || {
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if let Some(s) = delay{
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let t = time::Duration::from_secs(s);
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thread::sleep(t);
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}
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let feeds = {
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if let Some(mut vec) = source {
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Ok(index_feed::fetch_feeds(&db, vec))
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} else {
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index_feed::fetch_all_feeds(&db)
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}
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};
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if let Ok(mut x) = feeds {
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index_feed::index_feeds(&db, &mut x);
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info!("Indexing done.");
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sender.send(true).expect("Couldn't send data to channel");;
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glib::idle_add(refresh_podcasts_view);
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};
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}));
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}
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fn refresh_podcasts_view() -> glib::Continue {
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GLOBAL.with(|global| {
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if let Some((ref db, ref stack, ref reciever)) = *global.borrow() {
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if reciever.try_recv().is_ok() {
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podcasts_view::update_podcasts_view(db, stack);
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}
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}
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});
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glib::Continue(false)
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}
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