src/Tizen.NUI/src/internal/CustomAlgorithmInterface.cs

   1 /** Copyright (c) 2017 Samsung Electronics Co., Ltd.
   2 *
   3 * Licensed under the Apache License, Version 2.0 (the "License");
   4 * you may not use this file except in compliance with the License.
   5 * You may obtain a copy of the License at
   6 *
   7 * http://www.apache.org/licenses/LICENSE-2.0
   8 *
   9 * Unless required by applicable law or agreed to in writing, software
  10 * distributed under the License is distributed on an "AS IS" BASIS,
  11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 * See the License for the specific language governing permissions and
  13 * limitations under the License.
  14 *
  15 */
  16
  17 using System.Reflection;
  18 using Tizen.NUI.BaseComponents;
  19
  20 namespace Tizen.NUI
  21 {
  22
  23     internal class CustomAlgorithmInterface : global::System.IDisposable
  24     {
  25         private global::System.Runtime.InteropServices.HandleRef swigCPtr;
  26         protected bool swigCMemOwn;
  27
  28         internal CustomAlgorithmInterface(global::System.IntPtr cPtr, bool cMemoryOwn)
  29         {
  30             swigCMemOwn = cMemoryOwn;
  31             swigCPtr = new global::System.Runtime.InteropServices.HandleRef(this, cPtr);
  32         }
  33
  34         internal static global::System.Runtime.InteropServices.HandleRef getCPtr(CustomAlgorithmInterface obj)
  35         {
  36             return (obj == null) ? new global::System.Runtime.InteropServices.HandleRef(null, global::System.IntPtr.Zero) : obj.swigCPtr;
  37         }
  38
  39         //A Flag to check who called Dispose(). (By User or DisposeQueue)
  40         private bool isDisposeQueued = false;
  41         //A Flat to check if it is already disposed.
  42         protected bool disposed = false;
  43
  44
  45         ~CustomAlgorithmInterface()
  46         {
  47             if (!isDisposeQueued)
  48             {
  49                 isDisposeQueued = true;
  50                 DisposeQueue.Instance.Add(this);
  51             }
  52         }
  53
  54         public void Dispose()
  55         {
  56             //Throw excpetion if Dispose() is called in separate thread.
  57             if (!Window.IsInstalled())
  58             {
  59                 throw new System.InvalidOperationException("This API called from separate thread. This API must be called from MainThread.");
  60             }
  61
  62             if (isDisposeQueued)
  63             {
  64                 Dispose(DisposeTypes.Implicit);
  65             }
  66             else
  67             {
  68                 Dispose(DisposeTypes.Explicit);
  69                 System.GC.SuppressFinalize(this);
  70             }
  71         }
  72
  73         protected virtual void Dispose(DisposeTypes type)
  74         {
  75             if (disposed)
  76             {
  77                 return;
  78             }
  79
  80             if (type == DisposeTypes.Explicit)
  81             {
  82                 //Called by User
  83                 //Release your own managed resources here.
  84                 //You should release all of your own disposable objects here.
  85
  86             }
  87
  88             //Release your own unmanaged resources here.
  89             //You should not access any managed member here except static instance.
  90             //because the execution order of Finalizes is non-deterministic.
  91
  92             if (swigCPtr.Handle != global::System.IntPtr.Zero)
  93             {
  94                 if (swigCMemOwn)
  95                 {
  96                     swigCMemOwn = false;
  97                     NDalicPINVOKE.delete_CustomAlgorithmInterface(swigCPtr);
  98                 }
  99                 swigCPtr = new global::System.Runtime.InteropServices.HandleRef(null, global::System.IntPtr.Zero);
 100             }
 101
 102             disposed = true;
 103         }
 104
 105         public virtual View GetNextFocusableView(View current, View proposed, View.FocusDirection direction)
 106         {
 107             View ret = new View(NDalicPINVOKE.CustomAlgorithmInterface_GetNextFocusableActor(swigCPtr, View.getCPtr(current), View.getCPtr(proposed), (int)direction), true);
 108             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 109             return ret;
 110         }
 111
 112         internal CustomAlgorithmInterface() : this(NDalicPINVOKE.new_CustomAlgorithmInterface(), true)
 113         {
 114             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 115             SwigDirectorConnect();
 116         }
 117
 118         private void SwigDirectorConnect()
 119         {
 120             if (SwigDerivedClassHasMethod("GetNextFocusableView", swigMethodTypes0))
 121                 swigDelegate0 = new SwigDelegateCustomAlgorithmInterface_0(SwigDirectorGetNextFocusableView);
 122             NDalicPINVOKE.CustomAlgorithmInterface_director_connect(swigCPtr, swigDelegate0);
 123         }
 124
 125         private bool SwigDerivedClassHasMethod(string methodName, global::System.Type[] methodTypes)
 126         {
 127             global::System.Reflection.MethodInfo methodInfo = this.GetType().GetMethod(methodName, methodTypes);
 128             bool hasDerivedMethod = this.GetType().GetTypeInfo().IsSubclassOf(typeof(CustomAlgorithmInterface));
 129             return hasDerivedMethod && (methodInfo != null);
 130         }
 131
 132         private global::System.IntPtr SwigDirectorGetNextFocusableView(global::System.IntPtr current, global::System.IntPtr proposed, int direction)
 133         {
 134             View currentView = Registry.GetManagedBaseHandleFromNativePtr(current) as View;
 135             View proposedView = Registry.GetManagedBaseHandleFromNativePtr(proposed) as View;
 136
 137             return View.getCPtr(GetNextFocusableView(currentView, proposedView, (View.FocusDirection)direction)).Handle;
 138         }
 139
 140         internal delegate global::System.IntPtr SwigDelegateCustomAlgorithmInterface_0(global::System.IntPtr current, global::System.IntPtr proposed, int direction);
 141
 142         private SwigDelegateCustomAlgorithmInterface_0 swigDelegate0;
 143
 144         private static global::System.Type[] swigMethodTypes0 = new global::System.Type[] { typeof(View), typeof(View), typeof(View.FocusDirection) };
 145     }
 146
 147 }