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Prevent JS execution and layout operations while DOM in inconsistent state.

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This commit is contained in:
Josh Matthews 2018-12-09 22:08:33 -05:00
parent 231a37be24
commit 14b0de30db
4 changed files with 40 additions and 0 deletions
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6
components/script/dom/bindings/callback.rs
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@ -4,12 +4,15 @@
//! Base classes to work with IDL callbacks.
use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowBinding::WindowMethods;
use crate::dom::bindings::error::{report_pending_exception, Error, Fallible};
use crate::dom::bindings::inheritance::Castable;
use crate::dom::bindings::reflector::DomObject;
use crate::dom::bindings::root::{Dom, DomRoot};
use crate::dom::bindings::settings_stack::{AutoEntryScript, AutoIncumbentScript};
use crate::dom::bindings::utils::AsCCharPtrPtr;
use crate::dom::globalscope::GlobalScope;
use crate::dom::window::Window;
use js::jsapi::Heap;
use js::jsapi::JSAutoCompartment;
use js::jsapi::{AddRawValueRoot, IsCallable, JSContext, JSObject};
@ -242,6 +245,9 @@ impl CallSetup {
#[allow(unrooted_must_root)]
pub fn new<T: CallbackContainer>(callback: &T, handling: ExceptionHandling) -> CallSetup {
let global = unsafe { GlobalScope::from_object(callback.callback()) };
if let Some(window) = global.downcast::<Window>() {
window.Document().ensure_safe_to_run_script_or_layout();
}
let cx = global.get_cx();
let aes = AutoEntryScript::new(&global);