diff options
Diffstat (limited to 'Xamarin.Forms.Xaml/XamlNodeVisitor.cs')
-rw-r--r-- | Xamarin.Forms.Xaml/XamlNodeVisitor.cs | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/Xamarin.Forms.Xaml/XamlNodeVisitor.cs b/Xamarin.Forms.Xaml/XamlNodeVisitor.cs new file mode 100644 index 00000000..e0b1db32 --- /dev/null +++ b/Xamarin.Forms.Xaml/XamlNodeVisitor.cs @@ -0,0 +1,62 @@ +using System; + +namespace Xamarin.Forms.Xaml +{ + internal interface IXamlNodeVisitor + { + bool VisitChildrenFirst { get; } + + bool StopOnDataTemplate { get; } + + bool StopOnResourceDictionary { get; } + + void Visit(ValueNode node, INode parentNode); + void Visit(MarkupNode node, INode parentNode); + void Visit(ElementNode node, INode parentNode); + void Visit(RootNode node, INode parentNode); + void Visit(ListNode node, INode parentNode); + } + + internal class XamlNodeVisitor : IXamlNodeVisitor + { + readonly Action<INode, INode> action; + + public XamlNodeVisitor(Action<INode, INode> action, bool visitChildrenFirst = false, bool stopOnDataTemplate = false) + { + this.action = action; + VisitChildrenFirst = visitChildrenFirst; + StopOnDataTemplate = stopOnDataTemplate; + } + + public bool VisitChildrenFirst { get; } + + public bool StopOnDataTemplate { get; } + + public bool StopOnResourceDictionary { get; private set; } + + public void Visit(ValueNode node, INode parentNode) + { + action(node, parentNode); + } + + public void Visit(MarkupNode node, INode parentNode) + { + action(node, parentNode); + } + + public void Visit(ElementNode node, INode parentNode) + { + action(node, parentNode); + } + + public void Visit(RootNode node, INode parentNode) + { + action(node, parentNode); + } + + public void Visit(ListNode node, INode parentNode) + { + action(node, parentNode); + } + } +}
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