src/Tizen.NUI/src/internal/EXaml/Operation/GetStaticObject.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 GetStaticObject : Operation
  29     {
  30         public GetStaticObject(GlobalDataList globalDataList, List<object> operationInfo)
  31         {
  32             typeIndex = (int)operationInfo[0];
  33             propertyName = operationInfo[1] as string;
  34             fieldName = operationInfo[2] as string;
  35             this.globalDataList = globalDataList;
  36         }
  37
  38         private string propertyName;
  39         private string fieldName;
  40
  41         private GlobalDataList globalDataList;
  42
  43         public void Do()
  44         {
  45             object obj = null;
  46
  47             if (0 == globalDataList.GatheredInstances.Count && null != globalDataList.Root)
  48             {
  49                 obj = globalDataList.Root;
  50             }
  51             else
  52             {
  53                 var type = globalDataList.GatheredTypes[typeIndex];
  54
  55                 if (null != fieldName)
  56                 {
  57                     obj = type.GetField(fieldName, BindingFlags.Static | BindingFlags.Public)?.GetValue(null);
  58                 }
  59                 else
  60                 {
  61                     obj = type.GetProperty(propertyName, BindingFlags.Static | BindingFlags.Public)?.GetValue(null);
  62                 }
  63             }
  64
  65             if (null != obj)
  66             {
  67                 globalDataList.GatheredInstances.Add(obj);
  68
  69                 if (obj is BindableObject bindableObject)
  70                 {
  71                     bindableObject.IsCreateByXaml = true;
  72
  73                     if (1 == globalDataList.GatheredInstances.Count)
  74                     {
  75                         NameScope nameScope = new NameScope();
  76                         NameScope.SetNameScope(bindableObject, nameScope);
  77                     }
  78                 }
  79             }
  80             else
  81             {
  82                 string name = null;
  83                 if (null != fieldName)
  84                 {
  85                     name = fieldName;
  86                 }
  87                 else
  88                 {
  89                     name = propertyName;
  90                 }
  91
  92                 throw new Exception($"Can't gather static instance typeIndex:{typeIndex}, name:{name}");
  93             }
  94         }
  95
  96         private int typeIndex;
  97     }
  98 }