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

   1 using System;
   2 using System.Collections;
   3 using System.Collections.Generic;
   4 using System.Reflection;
   5 using Tizen.NUI.Binding;
   6
   7 namespace Tizen.NUI.Xaml
   8 {
   9         class FillResourceDictionariesVisitor : IXamlNodeVisitor
  10         {
  11                 public FillResourceDictionariesVisitor(HydrationContext context)
  12                 {
  13                         Context = context;
  14                 }
  15
  16                 HydrationContext Context { get; }
  17                 Dictionary<INode, object> Values => Context.Values;
  18
  19                 public TreeVisitingMode VisitingMode => TreeVisitingMode.TopDown;
  20                 public bool StopOnDataTemplate => true;
  21                 public bool StopOnResourceDictionary => false;
  22                 public bool VisitNodeOnDataTemplate => false;
  23
  24                 public void Visit(ValueNode node, INode parentNode)
  25                 {
  26                         if (!typeof(ResourceDictionary).IsAssignableFrom(Context.Types[((IElementNode)parentNode)]))
  27                                 return;
  28
  29                         node.Accept(new ApplyPropertiesVisitor(Context, stopOnResourceDictionary: false), parentNode);
  30                 }
  31
  32                 public void Visit(MarkupNode node, INode parentNode)
  33                 {
  34                 }
  35
  36                 public void Visit(ElementNode node, INode parentNode)
  37                 {
  38                         var value = Values[node];
  39                         XmlName propertyName;
  40                         //Set RD to VE
  41                         if (typeof(ResourceDictionary).IsAssignableFrom(Context.Types[node]) && ApplyPropertiesVisitor.TryGetPropertyName(node, parentNode, out propertyName)) {
  42                                 if ((propertyName.LocalName == "Resources" ||
  43                                          propertyName.LocalName.EndsWith(".Resources", StringComparison.Ordinal)) && value is ResourceDictionary) {
  44                                         var source = Values[parentNode];
  45                                         ApplyPropertiesVisitor.SetPropertyValue(source, propertyName, value, Context.RootElement, node, Context, node);
  46                                         return;
  47                                 }
  48                         }
  49
  50                         //Only proceed further if the node is a keyless RD
  51                         if (   parentNode is IElementNode
  52                                 && typeof(ResourceDictionary).IsAssignableFrom(Context.Types[((IElementNode)parentNode)])
  53                                 && !((IElementNode)parentNode).Properties.ContainsKey(XmlName.xKey))
  54                                 node.Accept(new ApplyPropertiesVisitor(Context, stopOnResourceDictionary: false), parentNode);
  55                         else if (   parentNode is ListNode
  56                                          && typeof(ResourceDictionary).IsAssignableFrom(Context.Types[((IElementNode)parentNode.Parent)])
  57                                          && !((IElementNode)parentNode.Parent).Properties.ContainsKey(XmlName.xKey))
  58                                 node.Accept(new ApplyPropertiesVisitor(Context, stopOnResourceDictionary: false), parentNode);
  59                 }
  60
  61                 public void Visit(RootNode node, INode parentNode)
  62                 {
  63                 }
  64
  65                 public void Visit(ListNode node, INode parentNode)
  66                 {
  67                 }
  68
  69                 public bool SkipChildren(INode node, INode parentNode)
  70                 {
  71                         var enode = node as ElementNode;
  72                         if (enode is null)
  73                                 return false;
  74                         if (   parentNode is IElementNode
  75                             && typeof(ResourceDictionary).IsAssignableFrom(Context.Types[((IElementNode)parentNode)])
  76                             && !((IElementNode)parentNode).Properties.ContainsKey(XmlName.xKey))
  77                                 return true;
  78                         if (   parentNode is ListNode
  79                                 && typeof(ResourceDictionary).IsAssignableFrom(Context.Types[((IElementNode)parentNode.Parent)])
  80                                 && !((IElementNode)parentNode.Parent).Properties.ContainsKey(XmlName.xKey))
  81                                 return true;
  82                         return false;
  83                 }
  84
  85         }
  86 }