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provider image: properly abort old tasks

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This commit is contained in:
Bilal Elmoussaoui 2022-04-20 01:24:24 +02:00
parent 2a57aed29f
commit 022b9d072e
3 changed files with 35 additions and 13 deletions
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1
Cargo.lock generated
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@ -249,7 +249,6 @@ dependencies = [
"binascii",
"diesel",
"diesel_migrations",
"futures",
"gettext-rs",
"gst-plugin-gtk4",
"gstreamer",

1
Cargo.toml
View file

@ -10,7 +10,6 @@ ashpd = {version = "0.3", features = ["feature_pipewire", "feature_gtk4"]}
binascii = "0.1"
diesel = {version = "1.4", features = ["sqlite", "r2d2"]}
diesel_migrations = {version = "1.4", features = ["sqlite"]}
futures = "0.3"
gettext-rs = {version = "0.7", features = ["gettext-system"]}
gst = {package = "gstreamer", version = "0.18"}
gst4gtk = { package = "gst-plugin-gtk4", version = "0.1"}

46
src/widgets/providers/image.rs
View file

@ -27,6 +27,8 @@ mod imp {
pub image: TemplateChild<gtk::Image>,
#[template_child]
pub spinner: TemplateChild<gtk::Spinner>,
pub signal_id: RefCell<Option<glib::SignalHandlerId>>,
pub join_handle: RefCell<Option<tokio::task::JoinHandle<()>>>,
}
#[glib::object_subclass]
@ -46,6 +48,8 @@ mod imp {
image: TemplateChild::default(),
spinner: TemplateChild::default(),
provider: RefCell::new(None),
signal_id: Default::default(),
join_handle: Default::default(),
}
}
@ -132,13 +136,20 @@ impl ProviderImage {
imp.spinner.start();
self.on_provider_image_changed();
}
provider.connect_notify_local(
let signal_id = provider.connect_notify_local(
Some("image-uri"),
clone!(@weak self as image => move |_, _| {
image.on_provider_image_changed();
}),
);
imp.signal_id.replace(Some(signal_id));
return;
} else {
if let (Some(signal_id), Some(provider)) =
(imp.signal_id.borrow_mut().take(), self.provider())
{
provider.disconnect(signal_id);
}
}
imp.image.set_from_icon_name(Some("provider-fallback"));
@ -179,6 +190,9 @@ impl ProviderImage {
fn fetch(&self) {
let imp = self.imp();
if let Some(handle) = imp.join_handle.borrow_mut().take() {
handle.abort();
}
if let Some(provider) = self.provider() {
imp.stack.set_visible_child_name("loading");
imp.spinner.start();
@ -186,8 +200,8 @@ impl ProviderImage {
if let Some(website) = provider.website() {
let id = provider.id();
let name = provider.name();
let (sender, receiver) = futures::channel::oneshot::channel();
RUNTIME.spawn(async move {
let (sender, receiver) = tokio::sync::oneshot::channel();
let future = async move {
match Provider::favicon(website, name, id).await {
Ok(cache_name) => {
sender.send(Some(cache_name)).unwrap();
@ -196,16 +210,24 @@ impl ProviderImage {
log::error!("Failed to load favicon {}", err);
sender.send(None).unwrap();
}
}
});
};
};
let join_handle = RUNTIME.spawn(future);
imp.join_handle.borrow_mut().replace(join_handle);
glib::MainContext::default().spawn_local(clone!(@weak self as this => async move {
let imp = this.imp();
let response = receiver.await.unwrap();
if let Some(cache_name) = response {
send!(imp.sender.clone(), ImageAction::Ready(cache_name));
} else {
send!(imp.sender.clone(), ImageAction::Failed);
}
match receiver.await {
Ok(Some(cache_name)) => {
send!(imp.sender.clone(), ImageAction::Ready(cache_name));
}
Ok(None) => {
send!(imp.sender.clone(), ImageAction::Failed);
},
Err(_) => {
log::debug!("Provider image fetching aborted");
}
};
}));
}
}
@ -261,9 +283,11 @@ impl ProviderImage {
}
};
if let Some(provider) = self.provider() {
let guard = provider.freeze_notify();
if let Err(err) = provider.set_image_uri(&image_path) {
warn!("Failed to update provider image {}", err);
}
drop(guard);
}
imp.stack.set_visible_child_name("image");