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LibWeb: Add EventTarget::has_event_listener(FlyString type)
This returns true if the EventTarget has one or more registered listeners for a given even type.
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2 changed files with 11 additions and 0 deletions
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@ -735,4 +735,13 @@ bool EventTarget::dispatch_event(Event& event)
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return EventDispatcher::dispatch(*this, event);
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return EventDispatcher::dispatch(*this, event);
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}
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}
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bool EventTarget::has_event_listener(FlyString const& type) const
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{
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for (auto& listener : m_event_listener_list) {
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if (listener->type == type)
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return true;
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}
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return false;
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}
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}
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}
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@ -54,6 +54,8 @@ public:
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WebIDL::CallbackType* event_handler_attribute(FlyString const& name);
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WebIDL::CallbackType* event_handler_attribute(FlyString const& name);
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void set_event_handler_attribute(FlyString const& name, WebIDL::CallbackType*);
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void set_event_handler_attribute(FlyString const& name, WebIDL::CallbackType*);
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bool has_event_listener(FlyString const& type) const;
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protected:
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protected:
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explicit EventTarget(JS::Realm&);
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explicit EventTarget(JS::Realm&);
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