src/Tizen.NUI/src/internal/EXaml/Operation/CreateInstance.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 using System;
  18 using System.Collections.Generic;
  19 using System.Reflection;
  20 using System.Text;
  21 using Tizen.NUI.BaseComponents;
  22 using Tizen.NUI.Binding;
  23 using Tizen.NUI.Binding.Internals;
  24 using Tizen.NUI.Xaml;
  25
  26 namespace Tizen.NUI.EXaml
  27 {
  28     internal class CreateInstance : Operation
  29     {
  30         public CreateInstance(GlobalDataList globalDataList, int typeIndex, int xFactoryMethodIndex, List<object> paramList = null)
  31         {
  32             this.typeIndex = typeIndex;
  33             this.paramList = paramList;
  34             this.globalDataList = globalDataList;
  35             this.xFactoryMethodIndex = xFactoryMethodIndex;
  36         }
  37
  38         private GlobalDataList globalDataList;
  39         private int xFactoryMethodIndex;
  40
  41         public void Do()
  42         {
  43             if (0 == globalDataList.GatheredInstances.Count && null != Root)
  44             {
  45                 globalDataList.GatheredInstances.Add(Root);
  46             }
  47             else
  48             {
  49                 var type = globalDataList.GatheredTypes[typeIndex];
  50
  51                 var xFactoryMethod = (0 <= xFactoryMethodIndex) ? globalDataList.GatheredMethods[xFactoryMethodIndex] : null;
  52
  53                 if (null == paramList)
  54                 {
  55                     if (null == xFactoryMethod)
  56                     {
  57                         globalDataList.GatheredInstances.Add(Activator.CreateInstance(type));
  58                     }
  59                     else
  60                     {
  61                         globalDataList.GatheredInstances.Add(xFactoryMethod.Invoke(null, Array.Empty<object>()));
  62                     }
  63                 }
  64                 else
  65                 {
  66                     for (int i = 0; i < paramList.Count; i++)
  67                     {
  68                         if (paramList[i] is Instance instance)
  69                         {
  70                             paramList[i] = globalDataList.GatheredInstances[instance.Index];
  71                         }
  72
  73                         if (paramList[i] is ApplicationResourcePathExtension applicationResourcePath)
  74                         {
  75                             paramList[i] = applicationResourcePath.ProvideValue(null);
  76                         }
  77                     }
  78
  79                     if (null == xFactoryMethod)
  80                     {
  81                         globalDataList.GatheredInstances.Add(Activator.CreateInstance(type, paramList.ToArray()));
  82                     }
  83                     else
  84                     {
  85                         globalDataList.GatheredInstances.Add(xFactoryMethod.Invoke(null, paramList.ToArray()));
  86                     }
  87                 }
  88             }
  89
  90             if (1 == globalDataList.GatheredInstances.Count)
  91             {
  92                 var rootObject = globalDataList.GatheredInstances[0] as BindableObject;
  93                 if (null != rootObject)
  94                 {
  95                     rootObject.IsCreateByXaml = true;
  96                     NameScope nameScope = new NameScope();
  97                     NameScope.SetNameScope(rootObject, nameScope);
  98                 }
  99             }
 100         }
 101
 102         private int typeIndex;
 103
 104         internal static object Root;
 105
 106         private List<object> paramList;
 107     }
 108 }