FastWave2.0/frontend/src/platform/browser.rs
Martin Kavík 31613dbac9 fmt
2024-07-05 03:30:17 +02:00

131 lines
4.5 KiB
Rust

use shared::wellen_helpers;
use std::sync::Mutex;
use wellen::simple::Waveform;
use zoon::{eprintln, *};
#[derive(Default)]
struct BrowserPlatformStore {
waveform: Mutex<Option<Waveform>>,
}
static BROWSER_PLATFORM_STORE: Lazy<BrowserPlatformStore> = lazy::default();
pub(super) async fn show_window() {}
pub(super) async fn pick_and_load_waveform(
file: Option<gloo_file::File>,
) -> Option<super::Filename> {
let file = file.unwrap_throw();
let content = gloo_file::futures::read_as_bytes(&file)
.await
.unwrap_throw();
let waveform = wellen_helpers::read_from_bytes(content);
let Ok(waveform) = waveform else {
panic!("Waveform file reading failed")
};
*BROWSER_PLATFORM_STORE.waveform.lock().unwrap_throw() = Some(waveform);
Some(file.name())
}
// @TODO Use this `pick_and_load_waveform` version once `showOpenFilePicker` is supported by Safari and Firefox
// https://caniuse.com/mdn-api_window_showopenfilepicker
// pub(super) async fn pick_and_load_waveform() -> Option<super::Filename> {
// let file_handles_promise = window().show_open_file_picker().expect_throw(
// "failed to open file picker (browser has to support `showOpenFilePicker` and use HTTPS",
// );
// let file_handles = JsFuture::from(file_handles_promise).await;
// let file_handles = match file_handles {
// Ok(file_handles) => file_handles.dyn_into::<js_sys::Array>().unwrap_throw(),
// Err(error) => {
// println!("file picker error: {error:?}");
// return None;
// }
// };
// let file_handle = file_handles
// .at(0)
// .dyn_into::<web_sys::FileSystemFileHandle>()
// .unwrap_throw();
// let file = JsFuture::from(file_handle.get_file())
// .await
// .unwrap_throw()
// .dyn_into::<web_sys::File>()
// .unwrap_throw();
// let file = gloo_file::File::from(file);
// let content = gloo_file::futures::read_as_bytes(&file)
// .await
// .unwrap_throw();
// let waveform = wellen_helpers::read_from_bytes(content);
// let Ok(waveform) = waveform else {
// panic!("Waveform file reading failed")
// };
// *BROWSER_PLATFORM_STORE.waveform.lock().unwrap_throw() = Some(waveform);
// Some(file.name())
// }
// @TODO allow only supported file type (*.fw.js)
// @TODO remove the `file` parameter once we don't have to use FileInput element
pub async fn load_file_with_selected_vars(
file: Option<gloo_file::File>,
) -> Option<super::JavascriptCode> {
let file = file.unwrap_throw();
let javascript_code = gloo_file::futures::read_as_text(&file).await.unwrap_throw();
Some(javascript_code)
}
// @TODO Use alternative `load_file_with_selected_vars` version once `showOpenFilePicker` is supported by Safari and Firefox
// https://caniuse.com/mdn-api_window_showopenfilepicker
// (see the `pick_and_load_waveform` method above)
pub(super) async fn get_hierarchy() -> wellen::Hierarchy {
let waveform = BROWSER_PLATFORM_STORE.waveform.lock().unwrap_throw();
let hierarchy = waveform.as_ref().unwrap_throw().hierarchy();
// @TODO Wrap `hierarchy` in `Waveform` with `Rc/Arc` or add the method `take` / `clone` or refactor?
serde_json::from_value(serde_json::to_value(hierarchy).unwrap_throw()).unwrap_throw()
}
pub(super) async fn load_signal_and_get_timeline(
signal_ref: wellen::SignalRef,
timeline_zoom: f64,
timeline_viewport_width: u32,
timeline_viewport_x: i32,
block_height: u32,
var_format: shared::VarFormat,
) -> shared::Timeline {
let mut waveform_lock = BROWSER_PLATFORM_STORE.waveform.lock().unwrap();
let waveform = waveform_lock.as_mut().unwrap();
waveform.load_signals_multi_threaded(&[signal_ref]);
let signal = waveform.get_signal(signal_ref).unwrap();
let time_table = waveform.time_table();
let timeline = shared::signal_to_timeline(
signal,
time_table,
timeline_zoom,
timeline_viewport_width,
timeline_viewport_x,
block_height,
var_format,
);
timeline
}
pub(super) async fn unload_signal(signal_ref: wellen::SignalRef) {
let mut waveform_lock = BROWSER_PLATFORM_STORE.waveform.lock().unwrap_throw();
let waveform = waveform_lock.as_mut().unwrap_throw();
waveform.unload_signals(&[signal_ref]);
}
pub(super) async fn add_decoders(
_decoder_paths: Vec<super::DecoderPath>,
) -> super::AddedDecodersCount {
// @TODO error message for user
eprintln!("Adding decoders is not supported in the browser.");
0
}