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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use dom_struct::dom_struct;
use js::jsapi::JSContext;
use js::rust::HandleValue;
use malloc_size_of::MallocSizeOf;
use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
use crate::dom::bindings::root::DomRoot;
use crate::dom::bindings::trace::JSTraceable;
use crate::dom::globalscope::GlobalScope;
use crate::realms::InRealm;
use crate::script_runtime::JSContext as SafeJSContext;
pub trait Callback: JSTraceable + MallocSizeOf {
fn callback(&self, cx: SafeJSContext, v: HandleValue, realm: InRealm);
}
#[dom_struct]
pub struct PromiseNativeHandler {
reflector: Reflector,
resolve: Option<Box<dyn Callback>>,
reject: Option<Box<dyn Callback>>,
}
impl PromiseNativeHandler {
pub fn new(
global: &GlobalScope,
resolve: Option<Box<dyn Callback>>,
reject: Option<Box<dyn Callback>>,
) -> DomRoot<PromiseNativeHandler> {
reflect_dom_object(
Box::new(PromiseNativeHandler {
reflector: Reflector::new(),
resolve: resolve,
reject: reject,
}),
global,
)
}
#[allow(unsafe_code)]
fn callback(
callback: &Option<Box<dyn Callback>>,
cx: *mut JSContext,
v: HandleValue,
realm: InRealm,
) {
let cx = unsafe { SafeJSContext::from_ptr(cx) };
if let Some(ref callback) = *callback {
callback.callback(cx, v, realm)
}
}
pub fn resolved_callback(&self, cx: *mut JSContext, v: HandleValue, realm: InRealm) {
PromiseNativeHandler::callback(&self.resolve, cx, v, realm)
}
pub fn rejected_callback(&self, cx: *mut JSContext, v: HandleValue, realm: InRealm) {
PromiseNativeHandler::callback(&self.reject, cx, v, realm)
}
}
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