/*
 * Copyright (c) 2017 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;

namespace Dali {

public delegate IntPtr SwigDelegatePreFocusChangeSignal(IntPtr current, IntPtr proposed, View.KeyboardFocus.Direction direction);

public class PreFocusChangeSignal : global::System.IDisposable {
  private global::System.Runtime.InteropServices.HandleRef swigCPtr;
  protected bool swigCMemOwn;

  internal PreFocusChangeSignal(global::System.IntPtr cPtr, bool cMemoryOwn) {
    swigCMemOwn = cMemoryOwn;
    swigCPtr = new global::System.Runtime.InteropServices.HandleRef(this, cPtr);
  }

  internal static global::System.Runtime.InteropServices.HandleRef getCPtr(PreFocusChangeSignal obj) {
    return (obj == null) ? new global::System.Runtime.InteropServices.HandleRef(null, global::System.IntPtr.Zero) : obj.swigCPtr;
  }

  ~PreFocusChangeSignal() {
    DisposeQueue.Instance.Add(this);
  }

  public virtual void Dispose() {
    if (!Window.IsInstalled()) {
      DisposeQueue.Instance.Add(this);
      return;
    }

    lock(this) {
      if (swigCPtr.Handle != global::System.IntPtr.Zero) {
        if (swigCMemOwn) {
          swigCMemOwn = false;
          NDalicManualPINVOKE.delete_PreFocusChangeSignal(swigCPtr);
        }
        swigCPtr = new global::System.Runtime.InteropServices.HandleRef(null, global::System.IntPtr.Zero);
      }
      global::System.GC.SuppressFinalize(this);
    }
  }

  public bool Empty() {
    bool ret = NDalicManualPINVOKE.PreFocusChangeSignal_Empty(swigCPtr);
    if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
    return ret;
  }

  public uint GetConnectionCount() {
    uint ret = NDalicManualPINVOKE.PreFocusChangeSignal_GetConnectionCount(swigCPtr);
    if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
    return ret;
  }

  public void Connect(FocusManager.PreFocusChangeEventCallbackDelegate func) {
     NDalicManualPINVOKE.PreFocusChangeSignal_Connect(swigCPtr, func);
     if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 }

  public void Disconnect(System.Delegate func) {
    System.IntPtr ip = System.Runtime.InteropServices.Marshal.GetFunctionPointerForDelegate(func);
    {
      NDalicManualPINVOKE.PreFocusChangeSignal_Disconnect(swigCPtr, new System.Runtime.InteropServices.HandleRef(this, ip));
      if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
    }
  }

  public View Emit(View arg1, View arg2, View.KeyboardFocus.Direction arg3) {
    View ret = new View(NDalicManualPINVOKE.PreFocusChangeSignal_Emit(swigCPtr, View.getCPtr(arg1), View.getCPtr(arg2), (int)arg3), true);
    if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
    return ret;
  }

  public PreFocusChangeSignal() : this(NDalicManualPINVOKE.new_PreFocusChangeSignal(), true) {
    if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
  }

}

}