src/Tizen.NUI.XamlBuild/src/public/XamlBuild/SetResourcesVisitor.cs

   1 using System;
   2 using System.Collections;
   3 using System.Linq;
   4 using Mono.Cecil;
   5 using Mono.Cecil.Cil;
   6 using Tizen.NUI.Xaml;
   7
   8 namespace Tizen.NUI.Xaml.Build.Tasks
   9 {
  10     class SetResourcesVisitor : IXamlNodeVisitor
  11     {
  12         public SetResourcesVisitor(ILContext context)
  13         {
  14             Context = context;
  15             Module = context.Body.Method.Module;
  16         }
  17
  18         public ILContext Context { get; }
  19         ModuleDefinition Module { get; }
  20         public TreeVisitingMode VisitingMode => TreeVisitingMode.TopDown;
  21         public bool StopOnDataTemplate => true;
  22         public bool StopOnResourceDictionary => false;
  23         public bool VisitNodeOnDataTemplate => false;
  24
  25         public void Visit(ValueNode node, INode parentNode)
  26         {
  27             if (!IsResourceDictionary((IElementNode)parentNode))
  28                 return;
  29
  30             node.Accept(new SetPropertiesVisitor(Context, stopOnResourceDictionary: false), parentNode);
  31         }
  32
  33         public void Visit(MarkupNode node, INode parentNode)
  34         {
  35         }
  36
  37
  38         public void Visit(ElementNode node, INode parentNode)
  39         {
  40             XmlName propertyName;
  41             //Set ResourcesDictionaries to their parents
  42             if (IsResourceDictionary(node) && SetPropertiesVisitor.TryGetPropertyName(node, parentNode, out propertyName)) {
  43                 if ((propertyName.LocalName == "XamlResources" || propertyName.LocalName.EndsWith(".XamlResources", StringComparison.Ordinal))) {
  44                     Context.IL.Append(SetPropertiesVisitor.SetPropertyValue(Context.Variables[(IElementNode)parentNode], propertyName, node, Context, node));
  45                     return;
  46                 }
  47             }
  48
  49             //Only proceed further if the node is a keyless RD
  50             if (   parentNode is IElementNode
  51                 && IsResourceDictionary((IElementNode)parentNode)
  52                 && !((IElementNode)parentNode).Properties.ContainsKey(XmlName.xKey))
  53                 node.Accept(new SetPropertiesVisitor(Context, stopOnResourceDictionary: false), parentNode);
  54             else if (   parentNode is ListNode
  55                      && IsResourceDictionary((IElementNode)parentNode.Parent)
  56                      && !((IElementNode)parentNode.Parent).Properties.ContainsKey(XmlName.xKey))
  57                 node.Accept(new SetPropertiesVisitor(Context, stopOnResourceDictionary: false), parentNode);
  58         }
  59
  60         public void Visit(RootNode node, INode parentNode)
  61         {
  62         }
  63
  64         public void Visit(ListNode node, INode parentNode)
  65         {
  66         }
  67
  68         public bool IsResourceDictionary(ElementNode node) => IsResourceDictionary((IElementNode)node);
  69
  70         bool IsResourceDictionary(IElementNode node)
  71         {
  72             var parentVar = Context.Variables[(IElementNode)node];
  73             return parentVar.VariableType.FullName == "Tizen.NUI.Binding.ResourceDictionary"
  74                 || parentVar.VariableType.ResolveCached().BaseType?.FullName == "Tizen.NUI.Binding.ResourceDictionary";
  75         }
  76
  77         public bool SkipChildren(INode node, INode parentNode)
  78         {
  79             var enode = node as ElementNode;
  80             if (enode == null)
  81                 return false;
  82             if (   parentNode is IElementNode
  83                 && IsResourceDictionary((IElementNode)parentNode)
  84                 && !((IElementNode)parentNode).Properties.ContainsKey(XmlName.xKey))
  85                 return true;
  86             if (   parentNode is ListNode
  87                 && IsResourceDictionary((IElementNode)parentNode.Parent)
  88                 && !((IElementNode)parentNode.Parent).Properties.ContainsKey(XmlName.xKey))
  89                 return true;
  90             return false;
  91         }
  92     }
  93 }