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LibWeb: Introduce the Environment Settings Object

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The environment settings object is effectively the context a piece of
script is running under, for example, it contains the origin,
responsible document, realm, global object and event loop for the
current context. This effectively replaces ScriptExecutionContext, but
it cannot be removed in this commit as EventTarget still depends on it.

https://html.spec.whatwg.org/multipage/webappapis.html#environment-settings-object
This commit is contained in:
Luke Wilde 2021-10-14 16:12:53 +01:00 • committed by Linus Groh
parent 4db5406d62
commit f71f404e0c
29 changed files with 883 additions and 86 deletions
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10
Userland/Libraries/LibWeb/DOM/Window.cpp
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@ -168,9 +168,10 @@ void Window::timer_did_fire(Badge<Timer>, Timer& timer)
m_timers.remove(timer.id());
}
HTML::queue_global_task(HTML::Task::Source::TimerTask, associated_document(), [this, strong_this = NonnullRefPtr(*this), strong_timer = NonnullRefPtr(timer)]() mutable {
// We should not be here if there's no JS wrapper for the Window object.
VERIFY(wrapper());
// We should not be here if there's no JS wrapper for the Window object.
VERIFY(wrapper());
HTML::queue_global_task(HTML::Task::Source::TimerTask, *wrapper(), [this, strong_this = NonnullRefPtr(*this), strong_timer = NonnullRefPtr(timer)]() mutable {
auto result = JS::call(wrapper()->global_object(), strong_timer->callback(), wrapper());
if (result.is_error())
HTML::report_exception(result);
@ -400,8 +401,7 @@ void Window::fire_a_page_transition_event(FlyString const& event_name, bool pers
// https://html.spec.whatwg.org/#dom-queuemicrotask
void Window::queue_microtask(JS::FunctionObject& callback)
{
// The queueMicrotask(callback) method must queue a microtask to invoke callback,
HTML::queue_a_microtask(associated_document(), [&callback, handle = JS::make_handle(&callback)]() {
HTML::queue_a_microtask(&associated_document(), [&callback, handle = JS::make_handle(&callback)]() {
auto result = JS::call(callback.global_object(), callback, JS::js_null());
// and if callback throws an exception, report the exception.
if (result.is_error())