/*
 * Copyright(c) 2021 Samsung Electronics 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.
 *
 */

using System;
using System.ComponentModel;

namespace Tizen.NUI
{
    /// <summary>
    /// WidgetViewSignal
    /// </summary>
    internal class WidgetViewSignal : Disposable
    {

        internal WidgetViewSignal(global::System.IntPtr cPtr, bool cMemoryOwn) : base(cPtr, cMemoryOwn)
        {
        }


        /// This will not be public opened.
        [EditorBrowsable(EditorBrowsableState.Never)]
        protected override void ReleaseSwigCPtr(System.Runtime.InteropServices.HandleRef swigCPtr)
        {
            Interop.WidgetView.DeleteWidgetViewSignal(swigCPtr);
        }

        /// <summary>
        /// Queries whether there are any connected slots.
        /// </summary>
        /// <returns>True if there are any slots connected to the signal</returns>
        internal bool Empty()
        {
            bool ret = Interop.WidgetView.WidgetViewSignalEmpty(SwigCPtr);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            return ret;
        }

        /// <summary>
        /// Queries the number of slots.
        /// </summary>
        /// <returns>The number of slots connected to this signal</returns>
        internal uint GetConnectionCount()
        {
            uint ret = Interop.WidgetView.WidgetViewSignalGetConnectionCount(SwigCPtr);
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            return ret;
        }

        /// <summary>
        /// Connects a function.
        /// </summary>
        /// <param name="func">The function to connect</param>
        internal void Connect(System.Delegate func)
        {
            System.IntPtr ip = System.Runtime.InteropServices.Marshal.GetFunctionPointerForDelegate<System.Delegate>(func);
            {
                Interop.WidgetView.WidgetViewSignalConnect(SwigCPtr, new System.Runtime.InteropServices.HandleRef(this, ip));
                if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            }
        }

        /// <summary>
        /// Disconnects a function.
        /// </summary>
        /// <param name="func">The function to disconnect</param>
        internal void Disconnect(System.Delegate func)
        {
            System.IntPtr ip = System.Runtime.InteropServices.Marshal.GetFunctionPointerForDelegate<System.Delegate>(func);
            {
                Interop.WidgetView.WidgetViewSignalDisconnect(SwigCPtr, new System.Runtime.InteropServices.HandleRef(this, ip));
                if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
            }
        }

        /// <summary>
        /// Connects a member function.
        /// </summary>
        /// <param name="arg">The member function to connect</param>
        internal void Emit(WidgetView arg)
        {
            Interop.WidgetView.WidgetViewSignalEmit(SwigCPtr, WidgetView.getCPtr(arg));
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }

        /// <summary>
        /// The contructor.
        /// </summary>
        internal WidgetViewSignal() : this(Interop.WidgetView.NewWidgetViewSignal(), true)
        {
            if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
        }
    }
}