src/Tizen.NUI.XamlBuild/src/public/EXamlBuild/EXamlSetResourcesVisitor.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;
  19 using System.Linq;
  20 using Mono.Cecil;
  21 using Mono.Cecil.Cil;
  22 using Tizen.NUI.EXaml;
  23 using Tizen.NUI.Xaml;
  24 using Tizen.NUI.Xaml.Build.Tasks;
  25
  26 namespace Tizen.NUI.EXaml.Build.Tasks
  27 {
  28     class EXamlSetResourcesVisitor : IXamlNodeVisitor
  29     {
  30         public EXamlSetResourcesVisitor(EXamlContext context)
  31         {
  32             Context = context;
  33             Module = context.Module;
  34         }
  35
  36         public EXamlContext Context { get; }
  37         ModuleDefinition Module { get; }
  38         public TreeVisitingMode VisitingMode => TreeVisitingMode.TopDown;
  39         public bool StopOnDataTemplate => true;
  40         public bool StopOnResourceDictionary => false;
  41         public bool VisitNodeOnDataTemplate => false;
  42
  43         public void Visit(ValueNode node, INode parentNode)
  44         {
  45             if (!IsResourceDictionary((IElementNode)parentNode))
  46                 return;
  47
  48             node.Accept(new EXamlSetPropertiesVisitor(Context, stopOnResourceDictionary: false), parentNode);
  49         }
  50
  51         public void Visit(MarkupNode node, INode parentNode)
  52         {
  53         }
  54
  55
  56         public void Visit(ElementNode node, INode parentNode)
  57         {
  58             XmlName propertyName;
  59             //Set ResourcesDictionaries to their parents
  60             if (IsResourceDictionary(node) && EXamlSetPropertiesVisitor.TryGetPropertyName(node, parentNode, out propertyName))
  61             {
  62                 string realPropertyName;
  63                 if (propertyName.LocalName.EndsWith(".XamlResources", StringComparison.Ordinal))
  64                 {
  65                     realPropertyName = propertyName.LocalName.Substring(propertyName.LocalName.Length - ".XamlResources".Length);
  66                 }
  67                 else
  68                 {
  69                     realPropertyName = propertyName.LocalName;
  70                 }
  71
  72                 if (realPropertyName == "XamlResources")
  73                 {
  74                     new EXamlSetProperty(Context, Context.Values[parentNode] as EXamlCreateObject, realPropertyName, Context.Values[node]);
  75                     //Context.IL.Append(SetPropertiesVisitor.SetPropertyValue(Context.Variables[(IElementNode)parentNode], propertyName, node, Context, node));
  76                     return;
  77                 }
  78             }
  79
  80             //Only proceed further if the node is a keyless RD
  81             if (   parentNode is IElementNode
  82                 && IsResourceDictionary((IElementNode)parentNode)
  83                 && !((IElementNode)parentNode).Properties.ContainsKey(XmlName.xKey))
  84                 node.Accept(new EXamlSetPropertiesVisitor(Context, stopOnResourceDictionary: false), parentNode);
  85             else if (   parentNode is ListNode
  86                      && IsResourceDictionary((IElementNode)parentNode.Parent)
  87                      && !((IElementNode)parentNode.Parent).Properties.ContainsKey(XmlName.xKey))
  88                 node.Accept(new EXamlSetPropertiesVisitor(Context, stopOnResourceDictionary: false), parentNode);
  89         }
  90
  91         public void Visit(RootNode node, INode parentNode)
  92         {
  93         }
  94
  95         public void Visit(ListNode node, INode parentNode)
  96         {
  97         }
  98
  99         public bool IsResourceDictionary(ElementNode node) => IsResourceDictionary((IElementNode)node);
 100
 101         bool IsResourceDictionary(IElementNode node)
 102         {
 103             var instance = Context.Values[node] as EXamlCreateObject;
 104
 105             if (null != instance)
 106             {
 107                 return instance.Type.InheritsFromOrImplements("Tizen.NUI.Binding.ResourceDictionary");
 108             }
 109             else
 110             {
 111                 return false;
 112             }
 113         }
 114
 115         public bool SkipChildren(INode node, INode parentNode)
 116         {
 117             var enode = node as ElementNode;
 118             if (enode == null)
 119                 return false;
 120             if (   parentNode is IElementNode
 121                 && IsResourceDictionary((IElementNode)parentNode)
 122                 && !((IElementNode)parentNode).Properties.ContainsKey(XmlName.xKey))
 123                 return true;
 124             if (   parentNode is ListNode
 125                 && IsResourceDictionary((IElementNode)parentNode.Parent)
 126                 && !((IElementNode)parentNode.Parent).Properties.ContainsKey(XmlName.xKey))
 127                 return true;
 128             return false;
 129         }
 130     }
 131 }