mirror of
https://github.com/RGBCube/serenity
synced 2025-05-23 18:15:06 +00:00
f39e5352f0
This patch adds the EventTarget class and makes Node inherit from it. You can register event listeners on an EventTarget, and when you call dispatch_event() on it, the event listeners will get invoked. An event listener is basically a wrapper around a JS::Function*. This is pretty far from how DOM events should eventually work, but it's a place to start and we'll build more on top of this. :^)
41 lines
877 B
C++
41 lines
877 B
C++
#pragma once
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#include <AK/Noncopyable.h>
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#include <AK/String.h>
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#include <AK/Vector.h>
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#include <LibWeb/Forward.h>
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namespace Web {
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class EventTarget {
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AK_MAKE_NONCOPYABLE(EventTarget);
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AK_MAKE_NONMOVABLE(EventTarget);
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public:
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virtual ~EventTarget();
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void ref() { ref_event_target(); }
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void unref() { unref_event_target(); }
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void add_event_listener(String event_name, NonnullRefPtr<EventListener>);
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virtual void dispatch_event(String event_name) = 0;
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struct EventListenerRegistration {
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String event_name;
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NonnullRefPtr<EventListener> listener;
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};
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const Vector<EventListenerRegistration>& listeners() const { return m_listeners; }
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protected:
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EventTarget();
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virtual void ref_event_target() = 0;
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virtual void unref_event_target() = 0;
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private:
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Vector<EventListenerRegistration> m_listeners;
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};
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}
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