ruffle/desktop/src/navigator.rs

132 lines
4.0 KiB
Rust

//! Navigator backend for web
use crate::custom_event::RuffleEvent;
use ruffle_core::backend::navigator::{
Error, NavigationMethod, NavigatorBackend, OwnedFuture, RequestOptions,
};
use std::collections::HashMap;
use std::fs;
use std::path::{Path, PathBuf};
use std::sync::mpsc::Sender;
use std::time::{Duration, Instant};
use url::Url;
use winit::event_loop::EventLoopProxy;
/// Implementation of `NavigatorBackend` for non-web environments that can call
/// out to a web browser.
pub struct ExternalNavigatorBackend {
/// Sink for tasks sent to us through `spawn_future`.
channel: Sender<OwnedFuture<(), Error>>,
/// Event sink to trigger a new task poll.
event_loop: EventLoopProxy<RuffleEvent>,
/// The base path for all relative fetches.
relative_base_path: PathBuf,
/// The time that the SWF was launched.
start_time: Instant,
}
impl ExternalNavigatorBackend {
#[allow(dead_code)]
pub fn new(
channel: Sender<OwnedFuture<(), Error>>,
event_loop: EventLoopProxy<RuffleEvent>,
) -> Self {
Self {
channel,
event_loop,
relative_base_path: PathBuf::new(),
start_time: Instant::now(),
}
}
/// Construct a navigator backend with fetch and async capability.
pub fn with_base_path<P: AsRef<Path>>(
path: P,
channel: Sender<OwnedFuture<(), Error>>,
event_loop: EventLoopProxy<RuffleEvent>,
) -> Self {
let mut relative_base_path = PathBuf::new();
relative_base_path.push(path);
Self {
channel,
event_loop,
relative_base_path,
start_time: Instant::now(),
}
}
}
impl NavigatorBackend for ExternalNavigatorBackend {
fn navigate_to_url(
&self,
url: String,
_window_spec: Option<String>,
vars_method: Option<(NavigationMethod, HashMap<String, String>)>,
) {
//TODO: Should we return a result for failed opens? Does Flash care?
//NOTE: Flash desktop players / projectors ignore the window parameter,
// unless it's a `_layer`, and we shouldn't handle that anyway.
let mut parsed_url = match Url::parse(&url) {
Ok(parsed_url) => parsed_url,
Err(e) => {
log::error!(
"Could not parse URL because of {}, the corrupt URL was: {}",
e,
url
);
return;
}
};
let modified_url = match vars_method {
Some((_, query_pairs)) => {
{
//lifetime limiter because we don't have NLL yet
let mut modifier = parsed_url.query_pairs_mut();
for (k, v) in query_pairs.iter() {
modifier.append_pair(k, v);
}
}
parsed_url.into_string()
}
None => url,
};
match webbrowser::open(&modified_url) {
Ok(_output) => {}
Err(e) => log::error!("Could not open URL {}: {}", modified_url, e),
};
}
fn time_since_launch(&mut self) -> Duration {
Instant::now().duration_since(self.start_time)
}
fn fetch(&self, url: String, _options: RequestOptions) -> OwnedFuture<Vec<u8>, Error> {
// Load from local filesystem.
// TODO: Support network loads, honor sandbox type (local-with-filesystem, local-with-network, remote, ...)
let mut path = self.relative_base_path.clone();
path.push(url);
Box::pin(async move { fs::read(path).map_err(|e| e.into()) })
}
fn spawn_future(&mut self, future: OwnedFuture<(), Error>) {
self.channel.send(future).expect("working channel send");
if self.event_loop.send_event(RuffleEvent::TaskPoll).is_err() {
log::warn!(
"A task was queued on an event loop that has already ended. It will not be polled."
);
}
}
}