Files
dioxus/packages/desktop/src/controller.rs
T

106 lines
3.5 KiB
Rust

use crate::desktop_context::{DesktopContext, UserWindowEvent};
use dioxus_core::*;
use std::{
collections::HashMap,
sync::atomic::AtomicBool,
sync::{Arc, RwLock},
};
use wry::{
self,
application::{event_loop::ControlFlow, event_loop::EventLoopProxy, window::WindowId},
webview::WebView,
};
pub(super) struct DesktopController {
pub(super) webviews: HashMap<WindowId, WebView>,
pub(super) sender: futures_channel::mpsc::UnboundedSender<SchedulerMsg>,
pub(super) pending_edits: Arc<RwLock<Vec<String>>>,
pub(super) quit_app_on_close: bool,
pub(super) is_ready: Arc<AtomicBool>,
}
impl DesktopController {
// Launch the virtualdom on its own thread managed by tokio
// returns the desktop state
pub(super) fn new_on_tokio<P: Send + 'static>(
root: Component<P>,
props: P,
proxy: EventLoopProxy<UserWindowEvent>,
) -> Self {
let edit_queue = Arc::new(RwLock::new(Vec::new()));
let pending_edits = edit_queue.clone();
let (sender, receiver) = futures_channel::mpsc::unbounded::<SchedulerMsg>();
let return_sender = sender.clone();
let desktop_context_proxy = proxy.clone();
std::thread::spawn(move || {
// We create the runtime as multithreaded, so you can still "spawn" onto multiple threads
let runtime = tokio::runtime::Builder::new_multi_thread()
.enable_all()
.build()
.unwrap();
runtime.block_on(async move {
let mut dom =
VirtualDom::new_with_props_and_scheduler(root, props, (sender, receiver));
let window_context = DesktopContext::new(desktop_context_proxy);
dom.base_scope().provide_context(window_context);
let edits = dom.rebuild();
edit_queue
.write()
.unwrap()
.push(serde_json::to_string(&edits.edits).unwrap());
// Make sure the window is ready for any new updates
proxy.send_event(UserWindowEvent::Update).unwrap();
loop {
dom.wait_for_work().await;
let mut muts = dom.work_with_deadline(|| false);
while let Some(edit) = muts.pop() {
edit_queue
.write()
.unwrap()
.push(serde_json::to_string(&edit.edits).unwrap());
}
let _ = proxy.send_event(UserWindowEvent::Update);
}
})
});
Self {
pending_edits,
sender: return_sender,
webviews: HashMap::new(),
is_ready: Arc::new(AtomicBool::new(false)),
quit_app_on_close: true,
}
}
pub(super) fn close_window(&mut self, window_id: WindowId, control_flow: &mut ControlFlow) {
self.webviews.remove(&window_id);
if self.webviews.is_empty() && self.quit_app_on_close {
*control_flow = ControlFlow::Exit;
}
}
pub(super) fn try_load_ready_webviews(&mut self) {
if self.is_ready.load(std::sync::atomic::Ordering::Relaxed) {
let mut queue = self.pending_edits.write().unwrap();
let (_id, view) = self.webviews.iter_mut().next().unwrap();
while let Some(edit) = queue.pop() {
view.evaluate_script(&format!("window.interpreter.handleEdits({})", edit))
.unwrap();
}
}
}
}