/*
 * Copyright (c) 2021 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef INPUT_METHOD_NAPI_EVENT_TARGET_H
#define INPUT_METHOD_NAPI_EVENT_TARGET_H

#include "napi/native_api.h"
#include "napi/native_node_api.h"
#include "global.h"
#include "input_method_ability.h"

namespace OHOS {
namespace MiscServices {
    struct EventListener;
    class Event {
    public:
        virtual napi_value ToJsObject() = 0;
    };

    class EventTarget : public RefBase {
    public:
        EventTarget(napi_env env, napi_value thisVar);
        virtual ~EventTarget();

        virtual void On(const char *type, napi_value handler);
        virtual void Once(const char *type, napi_value handler);
        virtual void Off(const char *type, napi_value handler);
        virtual void Off(const char *type);
        virtual void Emit(sptr<EventTarget> &eventTarget, const char *type, Event *event);

    protected:
        napi_env env_;
        napi_ref thisVarRef_;
        EventListener *first_;
        EventListener *last_;

    private:
        int LISTENER_TYPTE_MAX_LENGTH = 64;
    };
}
}
#endif // INPUT_METHOD_NAPI_EVENT_TARGET_H