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0e9746fbbe
* applied mach fmt Signed-off-by: Domenico Rizzo <domenico.rizzo@gmail.com> Refinements Signed-off-by: Domenico Rizzo <domenico.rizzo@gmail.com> Modified reflect_dom_object signature and all its calls Signed-off-by: Domenico Rizzo <domenico.rizzo@gmail.com> * fix function calls when parameter is passed up Signed-off-by: Domenico Rizzo <domenico.rizzo@gmail.com> --------- Signed-off-by: Domenico Rizzo <domenico.rizzo@gmail.com>
82 lines
2.4 KiB
Rust
82 lines
2.4 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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use dom_struct::dom_struct;
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use js::jsapi::JSContext;
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use js::rust::HandleValue;
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use malloc_size_of::MallocSizeOf;
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use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
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use crate::dom::bindings::root::DomRoot;
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use crate::dom::bindings::trace::JSTraceable;
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use crate::dom::globalscope::GlobalScope;
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use crate::realms::InRealm;
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use crate::script_runtime::{CanGc, JSContext as SafeJSContext};
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/// Types that implement the `Callback` trait follow the same rooting requirements
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/// as types that use the `#[dom_struct]` attribute.
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/// Prefer storing `Dom<T>` members inside them instead of `DomRoot<T>`
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/// to minimize redundant work by the garbage collector.
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pub trait Callback: JSTraceable + MallocSizeOf {
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fn callback(&self, cx: SafeJSContext, v: HandleValue, realm: InRealm, can_gc: CanGc);
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}
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#[dom_struct]
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pub struct PromiseNativeHandler {
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reflector: Reflector,
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resolve: Option<Box<dyn Callback>>,
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reject: Option<Box<dyn Callback>>,
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}
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impl PromiseNativeHandler {
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pub fn new(
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global: &GlobalScope,
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resolve: Option<Box<dyn Callback>>,
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reject: Option<Box<dyn Callback>>,
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) -> DomRoot<PromiseNativeHandler> {
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reflect_dom_object(
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Box::new(PromiseNativeHandler {
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reflector: Reflector::new(),
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resolve,
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reject,
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}),
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global,
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CanGc::note(),
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)
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}
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#[allow(unsafe_code)]
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fn callback(
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callback: &Option<Box<dyn Callback>>,
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cx: *mut JSContext,
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v: HandleValue,
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realm: InRealm,
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can_gc: CanGc,
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) {
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let cx = unsafe { SafeJSContext::from_ptr(cx) };
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if let Some(ref callback) = *callback {
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callback.callback(cx, v, realm, can_gc)
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}
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}
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pub fn resolved_callback(
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&self,
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cx: *mut JSContext,
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v: HandleValue,
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realm: InRealm,
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can_gc: CanGc,
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) {
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PromiseNativeHandler::callback(&self.resolve, cx, v, realm, can_gc)
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}
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pub fn rejected_callback(
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&self,
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cx: *mut JSContext,
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v: HandleValue,
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realm: InRealm,
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can_gc: CanGc,
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) {
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PromiseNativeHandler::callback(&self.reject, cx, v, realm, can_gc)
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}
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}
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