src/Tizen.NUI/src/internal/Common/ObjectRegistry.cs

   1 /*
   2  * Copyright(c) 2021 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 using System;
  19 using System.Runtime.InteropServices;
  20
  21 namespace Tizen.NUI
  22 {
  23     internal class ObjectRegistry : BaseHandle
  24     {
  25         internal ObjectRegistry(global::System.IntPtr cPtr, bool cMemoryOwn) : base(cPtr, cMemoryOwn)
  26         {
  27         }
  28
  29         protected override void ReleaseSwigCPtr(System.Runtime.InteropServices.HandleRef swigCPtr)
  30         {
  31             Interop.ObjectRegistry.DeleteObjectRegistry(swigCPtr);
  32         }
  33
  34         public class ObjectCreatedEventArgs : EventArgs
  35         {
  36             private BaseHandle baseHandle;
  37
  38             public BaseHandle BaseHandle
  39             {
  40                 get
  41                 {
  42                     return baseHandle;
  43                 }
  44                 set
  45                 {
  46                     baseHandle = value;
  47                 }
  48             }
  49         }
  50
  51         public class ObjectDestroyedEventArgs : EventArgs
  52         {
  53             private RefObject refObject;
  54
  55             public RefObject RefObject
  56             {
  57                 get
  58                 {
  59                     return refObject;
  60                 }
  61                 set
  62                 {
  63                     refObject = value;
  64                 }
  65             }
  66         }
  67
  68         [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
  69         private delegate void ObjectCreatedEventCallbackDelegate(IntPtr baseHandle);
  70         private DaliEventHandler<object, ObjectCreatedEventArgs> objectRegistryObjectCreatedEventHandler;
  71         private ObjectCreatedEventCallbackDelegate objectRegistryObjectCreatedEventCallbackDelegate;
  72
  73         [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
  74         private delegate void ObjectDestroyedEventCallbackDelegate(IntPtr fefObject);
  75         private DaliEventHandler<object, ObjectDestroyedEventArgs> objectRegistryObjectDestroyedEventHandler;
  76         private ObjectDestroyedEventCallbackDelegate objectRegistryObjectDestroyedEventCallbackDelegate;
  77
  78         public event DaliEventHandler<object, ObjectCreatedEventArgs> ObjectCreated
  79         {
  80             add
  81             {
  82                 // Restricted to only one listener
  83                 if (objectRegistryObjectCreatedEventHandler == null)
  84                 {
  85                     objectRegistryObjectCreatedEventHandler += value;
  86
  87                     objectRegistryObjectCreatedEventCallbackDelegate = new ObjectCreatedEventCallbackDelegate(OnObjectCreated);
  88                     this.ObjectCreatedSignal().Connect(objectRegistryObjectCreatedEventCallbackDelegate);
  89                 }
  90             }
  91
  92             remove
  93             {
  94                 if (objectRegistryObjectCreatedEventHandler != null)
  95                 {
  96                     this.ObjectCreatedSignal().Disconnect(objectRegistryObjectCreatedEventCallbackDelegate);
  97                 }
  98
  99                 objectRegistryObjectCreatedEventHandler -= value;
 100             }
 101         }
 102
 103         // Callback for ObjectRegistry ObjectCreatedSignal
 104         private void OnObjectCreated(IntPtr baseHandle)
 105         {
 106             ObjectCreatedEventArgs e = new ObjectCreatedEventArgs();
 107
 108             // Populate all members of "e" (ObjectCreatedEventArgs) with real data
 109             //e.BaseHandle = BaseHandle.GetBaseHandleFromPtr(baseHandle); //GetBaseHandleFromPtr() is not present in BaseHandle.cs. Not sure what is the reason?
 110
 111             if (objectRegistryObjectCreatedEventHandler != null)
 112             {
 113                 //here we send all data to user event handlers
 114                 objectRegistryObjectCreatedEventHandler(this, e);
 115             }
 116         }
 117
 118         public event DaliEventHandler<object, ObjectDestroyedEventArgs> ObjectDestroyed
 119         {
 120             add
 121             {
 122                 // Restricted to only one listener
 123                 if (objectRegistryObjectDestroyedEventHandler == null)
 124                 {
 125                     objectRegistryObjectDestroyedEventHandler += value;
 126
 127                     objectRegistryObjectDestroyedEventCallbackDelegate = new ObjectDestroyedEventCallbackDelegate(OnObjectDestroyed);
 128                     this.ObjectDestroyedSignal().Connect(objectRegistryObjectDestroyedEventCallbackDelegate);
 129                 }
 130             }
 131
 132             remove
 133             {
 134                 if (objectRegistryObjectDestroyedEventHandler != null)
 135                 {
 136                     this.ObjectDestroyedSignal().Disconnect(objectRegistryObjectDestroyedEventCallbackDelegate);
 137                 }
 138
 139                 objectRegistryObjectDestroyedEventHandler -= value;
 140             }
 141         }
 142
 143         // Callback for ObjectRegistry ObjectDestroyedSignal
 144         private void OnObjectDestroyed(IntPtr refObject)
 145         {
 146             ObjectDestroyedEventArgs e = new ObjectDestroyedEventArgs();
 147
 148             // Populate all members of "e" (ObjectDestroyedEventArgs) with real data
 149             e.RefObject = RefObject.GetRefObjectFromPtr(refObject);
 150
 151             if (objectRegistryObjectDestroyedEventHandler != null)
 152             {
 153                 //here we send all data to user event handlers
 154                 objectRegistryObjectDestroyedEventHandler(this, e);
 155             }
 156         }
 157
 158
 159         public ObjectRegistry() : this(Interop.ObjectRegistry.NewObjectRegistry(), true)
 160         {
 161             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 162         }
 163
 164         public ObjectRegistry(ObjectRegistry handle) : this(Interop.ObjectRegistry.NewObjectRegistry(ObjectRegistry.getCPtr(handle)), true)
 165         {
 166             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 167         }
 168
 169         public ObjectRegistry Assign(ObjectRegistry rhs)
 170         {
 171             ObjectRegistry ret = new ObjectRegistry(Interop.ObjectRegistry.Assign(SwigCPtr, ObjectRegistry.getCPtr(rhs)), false);
 172             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 173             return ret;
 174         }
 175
 176         public ObjectCreatedSignal ObjectCreatedSignal()
 177         {
 178             ObjectCreatedSignal ret = new ObjectCreatedSignal(Interop.ObjectRegistry.ObjectCreatedSignal(SwigCPtr), false);
 179             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 180             return ret;
 181         }
 182
 183         public ObjectDestroyedSignal ObjectDestroyedSignal()
 184         {
 185             ObjectDestroyedSignal ret = new ObjectDestroyedSignal(Interop.ObjectRegistry.ObjectDestroyedSignal(SwigCPtr), false);
 186             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 187             return ret;
 188         }
 189     }
 190 }