public void ResetBridgeRootElement()
{
// reset root
root = Flex.CreateDefaultNode();
var ra = CreateRuntimeNodeAttribute(root, templateRoot);
// copy style
var ctxs = GenerateContextStack();
ProcessStyleBind(root, ctxs);
// el-bind
var elBindDict = new Dictionary <string, object>();
if (templateRoot.attributeDataBindExpressList != null)
{
foreach (var attr in templateRoot.attributeDataBindExpressList)
{
if (attr.TryEvaluate(ctxs, out var obj))
{
elBindDict[attr.TargetName] = obj;
}
}
}
var eleRoot = bridge.CreateElement(root,
templateRoot.TagName,
elBindDict);
ra.element = eleRoot;
bridge.OnSetRoot(eleRoot);
}
Node RenderTemplateTree(TemplateNode tnode, ContextStack contextStack, object forContext)
{
Node node = Flex.CreateDefaultNode();
var ra = CreateRuntimeNodeAttribute(node, tnode);
// set el-for value
ra.forExpressItemCurrentValue = forContext;
// copy style
Style.Copy(node.nodeStyle, tnode.nodeStyle);
// process node el-bind
var originalAttrs = ra.attributes;
foreach (var attr in tnode.attributeDataBindExpressList)
{
if (attr.TryEvaluate(contextStack, out var attrValue))
{
if (originalAttrs.TryGetValue(attr, out var oldValue) && oldValue == attrValue)
{
// equal and not
// Console.WriteLine("no need to process style");
}
else
{
ra.attributes[attr] = attrValue;
ProcessNodeStyle(node, attr.TargetName, attrValue != null ? attrValue.ToString() : "");
}
}
else
{
ra.attributes.Remove(attr);
}
}
// process innerText
if (tnode.textDataBindExpress != null)
{
ra.textDataBindExpressCurrentValue = tnode.textDataBindExpress.Evaluate(contextStack);
}
// render children
ra.ResetChildren((appendChild) =>
{
foreach (var vchild in tnode.Children)
{
foreach (var child in RenderTemplateTreeExpand(vchild, contextStack))
{
node.AddChild(child);
appendChild(vchild, child);
}
}
});
return(node);
}