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images: make promise payload optional to take easily

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Signed-off-by: kernelkind <kernelkind@gmail.com>
This commit is contained in:
kernelkind
2025-04-29 11:13:48 -04:00
parent d204db4b29
commit def9de0dc0
2 changed files with 15 additions and 10 deletions
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2
crates/notedeck/src/imgcache.rs
View File

@@ -17,7 +17,7 @@ use std::path::{self};
use std::path::{Path, PathBuf};
use tracing::warn;
pub type MediaCacheValue = Promise<Result<TexturedImage>>;
pub type MediaCacheValue = Promise<Option<Result<TexturedImage>>>;
pub type MediaCacheMap = HashMap<String, MediaCacheValue>;
#[derive(Default)]

23
crates/notedeck_ui/src/images.rs
View File

@@ -178,14 +178,14 @@ fn fetch_img_from_disk(
url: &str,
path: &path::Path,
cache_type: MediaCacheType,
) -> Promise<Result<TexturedImage, notedeck::Error>> {
) -> Promise<Option<Result<TexturedImage, notedeck::Error>>> {
let ctx = ctx.clone();
let url = url.to_owned();
let path = path.to_owned();
Promise::spawn_async(
async move { async_fetch_img_from_disk(ctx, url, &path, cache_type).await },
)
Promise::spawn_async(async move {
Some(async_fetch_img_from_disk(ctx, url, &path, cache_type).await)
})
}
async fn async_fetch_img_from_disk(
@@ -361,7 +361,7 @@ pub fn fetch_img(
url: &str,
imgtyp: ImageType,
cache_type: MediaCacheType,
) -> Promise<Result<TexturedImage, notedeck::Error>> {
) -> Promise<Option<Result<TexturedImage, notedeck::Error>>> {
let key = MediaCache::key(url);
let path = img_cache_path.join(key);
@@ -380,7 +380,7 @@ fn fetch_img_from_net(
url: &str,
imgtyp: ImageType,
cache_type: MediaCacheType,
) -> Promise<Result<TexturedImage, notedeck::Error>> {
) -> Promise<Option<Result<TexturedImage, notedeck::Error>>> {
let (sender, promise) = Promise::new();
let request = ehttp::Request::get(url);
let ctx = ctx.clone();
@@ -417,7 +417,7 @@ fn fetch_img_from_net(
}
});
sender.send(handle); // send the results back to the UI thread.
sender.send(Some(handle)); // send the results back to the UI thread.
ctx.request_repaint();
});
@@ -476,7 +476,7 @@ fn render_media_cache(
.show(ui, |ui| {
match cache.map_mut().get_mut(url).and_then(|p| p.ready_mut()) {
None => show_waiting(ui),
Some(Err(err)) => {
Some(Some(Err(err))) => {
let err = err.to_string();
let no_pfp = crate::images::fetch_img(
&cache.cache_dir,
@@ -488,7 +488,12 @@ fn render_media_cache(
cache.map_mut().insert(url.to_owned(), no_pfp);
show_error(ui, err)
}
Some(Ok(renderable_media)) => show_success(ui, url, renderable_media, gif_states),
Some(Some(Ok(renderable_media))) => {
show_success(ui, url, renderable_media, gif_states)
}
Some(None) => {
tracing::error!("Promise already taken");
}
}
})
.response