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Rewrite CefBrowser::send_window_event with try_borrow

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This commit is contained in:
Anthony Ramine 2016-08-20 21:00:16 +02:00
parent 2e310f83ad
commit 3bfeaf08b1
2 changed files with 12 additions and 18 deletions
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28
ports/cef/browser.rs
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@ -17,7 +17,7 @@ use wrappers::CefWrap;
use compositing::windowing::{WindowNavigateMsg, WindowEvent};
use glutin_app;
use libc::c_int;
use std::cell::{Cell, RefCell, BorrowState};
use std::cell::{Cell, RefCell};
use std::ptr;
use std::rc::Rc;
use std::sync::atomic::{AtomicIsize, Ordering};
@ -183,24 +183,18 @@ impl ServoCefBrowserExtensions for CefBrowser {
}
fn send_window_event(&self, event: WindowEvent) {
self.downcast().message_queue.borrow_mut().push(event);
let browser = self.downcast();
loop {
match self.downcast().servo_browser.borrow_state() {
BorrowState::Unused => {
let event = match self.downcast().message_queue.borrow_mut().pop() {
None => return,
Some(event) => event,
};
self.downcast().servo_browser.borrow_mut().handle_event(event);
}
_ => {
// We're trying to send an event while processing another one. This will
// cause general badness, so queue up that event instead of immediately
// processing it.
break
}
if let Ok(mut servo_browser) = browser.servo_browser.try_borrow_mut() {
servo_browser.handle_event(event);
while let Some(event) = browser.message_queue.borrow_mut().pop() {
servo_browser.handle_event(event);
}
} else {
// If we fail to borrow mutably, this means we're trying to send an
// event while processing another one. This will cause general badness,
// we just queue up that event instead of immediately processing it.
browser.message_queue.borrow_mut().push(event);
}
}