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LibWeb: Fix EventDispatcher::dispatch()

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We were never wrapping and using the actual DOM::Event but instead
wrapped the *target* twice and passed it to the event listener callback,
as this value and as argument.

This unbreaks "fun demo" and "canvas path quadratic curve test" - and
event dispatching in general, of course :^)

Fixes #3721.
This commit is contained in:
Linus Groh 2020-10-15 20:02:28 +02:00 • committed by Andreas Kling
parent a45ba638a7
commit ac98a48177
Notes: sideshowbarker 2024-07-19 01:53:46 +09:00
1 changed files with 4 additions and 1 deletions
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5
Libraries/LibWeb/DOM/EventDispatcher.cpp
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@ -27,6 +27,8 @@
#include <LibJS/Runtime/Function.h>
#include <LibWeb/Bindings/EventTargetWrapper.h>
#include <LibWeb/Bindings/EventTargetWrapperFactory.h>
#include <LibWeb/Bindings/EventWrapper.h>
#include <LibWeb/Bindings/EventWrapperFactory.h>
#include <LibWeb/Bindings/ScriptExecutionContext.h>
#include <LibWeb/DOM/Event.h>
#include <LibWeb/DOM/EventDispatcher.h>
@ -44,9 +46,10 @@ void EventDispatcher::dispatch(EventTarget& target, NonnullRefPtr<Event> event)
auto& function = listener.listener->function();
auto& global_object = function.global_object();
auto* this_value = Bindings::wrap(global_object, target);
auto* wrapped_event = Bindings::wrap(global_object, *event);
auto& vm = global_object.vm();
(void)vm.call(function, this_value, Bindings::wrap(global_object, target));
(void)vm.call(function, this_value, wrapped_event);
if (vm.exception())
vm.clear_exception();
}