plugins/dali-swig/SWIG/events/itemview-event.i

   1 /*
   2  * Copyright (c) 2016 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17
  18 %define ITEMVIEW_EVENTHANDLER_TYPEMAP_EVENTARG(NameSpace, ClassName)
  19 %typemap(csimports) NameSpace::ClassName %{
  20 using System;
  21 using System.Runtime.InteropServices;
  22
  23 %}
  24 %enddef
  25
  26
  27 %define ITEMVIEW_EVENTHANDLER_TYPEMAP_HELPER(NameSpace, ClassName)
  28 %typemap(cscode) NameSpace::ClassName %{
  29
  30   public class LayoutActivatedEventArgs : EventArgs
  31   {
  32   }
  33
  34   [UnmanagedFunctionPointer(CallingConvention.StdCall)]
  35   private delegate void LayoutActivatedEventCallbackDelegate();
  36   private DaliEventHandler<object,LayoutActivatedEventArgs> _itemViewLayoutActivatedEventHandler;
  37   private LayoutActivatedEventCallbackDelegate _itemViewLayoutActivatedEventCallbackDelegate;
  38
  39   public event DaliEventHandler<object,LayoutActivatedEventArgs> LayoutActivated
  40   {
  41      add
  42      {
  43         lock(this)
  44         {
  45            // Restricted to only one listener
  46            if (_itemViewLayoutActivatedEventHandler == null)
  47            {
  48               _itemViewLayoutActivatedEventHandler += value;
  49
  50               _itemViewLayoutActivatedEventCallbackDelegate = new LayoutActivatedEventCallbackDelegate(OnLayoutActivated);
  51               this.LayoutActivatedSignal().Connect(_itemViewLayoutActivatedEventCallbackDelegate);
  52            }
  53         }
  54      }
  55
  56      remove
  57      {
  58         lock(this)
  59         {
  60            if (_itemViewLayoutActivatedEventHandler != null)
  61            {
  62               this.LayoutActivatedSignal().Disconnect(_itemViewLayoutActivatedEventCallbackDelegate);
  63            }
  64
  65            _itemViewLayoutActivatedEventHandler -= value;
  66         }
  67      }
  68   }
  69
  70   // Callback for ItemView LayoutActivatedSignal
  71   private void OnLayoutActivated()
  72   {
  73      LayoutActivatedEventArgs e = new LayoutActivatedEventArgs();
  74
  75      if (_itemViewLayoutActivatedEventHandler != null)
  76      {
  77         //here we send all data to user event handlers
  78         _itemViewLayoutActivatedEventHandler(this, e);
  79      }
  80   }
  81
  82 %}
  83 %enddef
  84
  85 %define DALI_ITEMVIEW_EVENTHANDLER_PARAM( NameSpace, ClassName)
  86   ITEMVIEW_EVENTHANDLER_TYPEMAP_EVENTARG( NameSpace, ClassName);
  87   ITEMVIEW_EVENTHANDLER_TYPEMAP_HELPER( NameSpace, ClassName);
  88 %enddef
  89
  90 namespace Dali
  91 {
  92   DALI_ITEMVIEW_EVENTHANDLER_PARAM( Dali::Toolkit, ItemView);
  93 }
  94