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/*
 * Copyright (c) 2019. JetBrains s.r.o.
 * Use of this source code is governed by the MIT license that can be found in the LICENSE file.
 */

package jetbrains.datalore.base.observable.event

import jetbrains.datalore.base.registration.Registration

class SimpleEventSource : EventSource {
    private val myListeners = Listeners>()

    fun fire(event: EventT) {
        myListeners.fire(object : ListenerCaller> {
            override fun call(l: EventHandler) {
                l.onEvent(event)
            }
        })
    }

    override fun addHandler(handler: EventHandler): Registration {
        return myListeners.add(handler)
    }
}