src/Tizen.NUI/src/internal/Xaml/ResourcesLoader.cs

   1 /*
   2  * Copyright(c) 2022 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.IO;
  19 using System.Reflection;
  20 using Tizen.NUI;
  21 using System.Xml;
  22 using Tizen.NUI.Binding.Internals;
  23
  24 // [assembly:Dependency(typeof(Tizen.NUI.Xaml.ResourcesLoader))]
  25 namespace Tizen.NUI.Xaml
  26 {
  27     internal class ResourcesLoader : IResourcesLoader
  28     {
  29         public T CreateFromResource<T>(string resourcePath, Assembly assembly, IXmlLineInfo lineInfo) where T : new()
  30         {
  31             var rd = new T();
  32             var resourceLoadingResponse = ResourceLoader.ResourceProvider?.Invoke(new ResourceLoader.ResourceLoadingQuery
  33             {
  34                 AssemblyName = assembly.GetName(),
  35                 ResourcePath = resourcePath,
  36                 Instance = rd
  37             });
  38             var alternateResource = resourceLoadingResponse?.ResourceContent;
  39             if (alternateResource != null)
  40             {
  41                 rd.LoadFromXaml(alternateResource);
  42                 return rd;
  43             }
  44
  45             var resourceId = XamlResourceIdAttribute.GetResourceIdForPath(assembly, resourcePath);
  46             if (resourceId == null)
  47                 throw new XamlParseException($"Resource '{resourcePath}' not found.", lineInfo);
  48
  49             using (var stream = assembly.GetManifestResourceStream(resourceId))
  50             {
  51                 if (stream == null)
  52                     throw new XamlParseException($"No resource found for '{resourceId}'.", lineInfo);
  53                 using (var reader = new StreamReader(stream))
  54                 {
  55                     rd.LoadFromXaml(reader.ReadToEnd());
  56                     return rd;
  57                 }
  58             }
  59         }
  60
  61         public string GetResource(string resourcePath, Assembly assembly, object target, IXmlLineInfo lineInfo)
  62         {
  63             var resourceLoadingResponse = ResourceLoader.ResourceProvider?.Invoke(new ResourceLoader.ResourceLoadingQuery {
  64                 AssemblyName = assembly.GetName(),
  65                 ResourcePath = resourcePath,
  66                 Instance = target
  67             });
  68             var alternateResource = resourceLoadingResponse?.ResourceContent;
  69             if (alternateResource != null)
  70                 return alternateResource;
  71
  72             var resourceId = XamlResourceIdAttribute.GetResourceIdForPath(assembly, resourcePath);
  73             if (resourceId == null)
  74                 throw new XamlParseException($"Resource '{resourcePath}' not found.", lineInfo);
  75
  76             using (var stream = assembly.GetManifestResourceStream(resourceId))
  77             {
  78                 if (stream == null)
  79                     throw new XamlParseException($"No resource found for '{resourceId}'.", lineInfo);
  80                 using (var reader = new StreamReader(stream))
  81                     return reader.ReadToEnd();
  82             }
  83         }
  84     }
  85 }