mirrors/ladybird
0
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2025-04-23 04:55:15 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 10

LibWeb: Use a JS::Handle to keep the EventListener function alive

Browse source
This commit is contained in:
Andreas Kling 2020-03-18 20:05:15 +01:00
parent a119b61782
commit 41f3817b36
Notes: sideshowbarker 2024-07-19 08:15:22 +09:00
5 changed files with 18 additions and 14 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
Libraries/LibWeb/Bindings/EventListenerWrapper.cpp
View file

@ -14,11 +14,5 @@ EventListenerWrapper::~EventListenerWrapper()
{
}
void EventListenerWrapper::visit_children(JS::Cell::Visitor& visitor)
{
Wrapper::visit_children(visitor);
visitor.visit(impl().function());
}
}
}

1
Libraries/LibWeb/Bindings/EventListenerWrapper.h
View file

@ -41,7 +41,6 @@ public:
private:
virtual const char* class_name() const override { return "EventListenerWrapper"; }
virtual void visit_children(JS::Cell::Visitor&) override;
NonnullRefPtr<EventListener> m_impl;
};

4
Libraries/LibWeb/Bindings/EventTargetWrapper.cpp
View file

@ -18,8 +18,8 @@ EventTargetWrapper::EventTargetWrapper(EventTarget& impl)
auto event_name = arguments[0].to_string();
ASSERT(arguments[1].is_object());
ASSERT(arguments[1].as_object()->is_function());
auto listener = adopt(*new EventListener(static_cast<JS::Function*>(const_cast<Object*>(arguments[1].as_object()))));
wrap(this_object->heap(), *listener);
auto* function = static_cast<JS::Function*>(const_cast<Object*>(arguments[1].as_object()));
auto listener = adopt(*new EventListener(JS::make_handle(function)));
static_cast<EventTargetWrapper*>(this_object)->impl().add_event_listener(event_name, move(listener));
return JS::js_undefined();
});

11
Libraries/LibWeb/DOM/EventListener.cpp
View file

@ -0,0 +1,11 @@
#include <LibJS/Runtime/Function.h>
#include <LibWeb/DOM/EventListener.h>
namespace Web {
JS::Function* EventListener::function()
{
return m_function.cell();
}
}

10
Libraries/LibWeb/DOM/EventListener.h
View file

@ -1,7 +1,7 @@
#pragma once
#include <AK/RefCounted.h>
#include <LibJS/Forward.h>
#include <LibJS/Heap/Handle.h>
#include <LibWeb/Bindings/Wrappable.h>
namespace Web {
@ -12,15 +12,15 @@ class EventListener
public:
using WrapperType = Bindings::EventListenerWrapper;
explicit EventListener(JS::Function* function)
: m_function(function)
explicit EventListener(JS::Handle<JS::Function> function)
: m_function(move(function))
{
}
JS::Function* function() { return m_function; }
JS::Function* function();
private:
JS::Function* m_function { nullptr };
JS::Handle<JS::Function> m_function;
};
}