fix vec2list projection: reset len to 0 on VecDiff::Clear

This commit is contained in:
Michael Sippel 2024-06-06 14:37:18 +02:00
parent e2c8ea8441
commit 81bd253dd6
Signed by: senvas
GPG key ID: F96CF119C34B64A6
3 changed files with 6 additions and 11 deletions

View file

@ -78,24 +78,20 @@ where Item: Clone + Send + Sync + 'static,
if let Some(v) = self.src_view.as_ref() {
self.end = v.len().unwrap();
for idx in 0 .. self.end {
if idx < self.end {
let val = v.get( &(self.end - idx - 1) ).unwrap();
self.cast.notify(&ListDiff::Insert{ idx: idx, val });
}
let val = v.get( &(self.end - idx - 1) ).unwrap();
self.cast.notify(&ListDiff::Insert{ idx: idx, val });
}
} else {
self.end = 0;
}
}
fn notify(&mut self, msg: &ListDiff<Item>) {
/* todo optimize
*/
//let len = self.src_view.len().unwrap();
self.cast.notify(&match msg {
ListDiff::Clear => {
self.end = 0;
ListDiff::Clear
},
}
ListDiff::Remove(mut idx) => {
self.end -= 1;
idx = self.end - idx;

View file

@ -67,6 +67,7 @@ where
fn notify(&mut self, diff: &VecDiff<T>) {
match diff {
VecDiff::Clear => {
self.cur_len = 0;
self.cast.notify(&ListDiff::Clear);
}
VecDiff::Push(val) => {

View file

@ -107,8 +107,6 @@ where V::Msg: Clone
pub fn attach_to_port(&self, other_port: ViewPort<V>) {
self.set_view( other_port.view.read().unwrap().clone() );
other_port.add_observer( self.cast.clone() );
// todo: forward reset() ?
self.update_hooks.write().unwrap().clear();
self.add_update_hook( Arc::new(other_port) );
}