public override void Visit(PropertyNode node, ControlDiffContext context)
{
if (!(context.Theirs is PropertyNode theirs))
{
return;
}
var currentControlKind = context.Path.Current;
if (TryGetUpdatedCustomPropertyMetadata(currentControlKind, node.Identifier, out var customProperty))
{
_deltas.Add(ChangeProperty.GetComponentCustomPropertyChange(context.Path, node.Identifier, node.Expression.Expression, customProperty));
return;
}
if (node.Expression.Expression != theirs.Expression.Expression)
{
_deltas.Add(ChangeProperty.GetNormalPropertyChange(context.Path, node.Identifier, node.Expression.Expression));
}
}
public override void Visit(BlockNode node, ControlDiffContext context)
{
if (!(context.Theirs is BlockNode theirs))
{
return;
}
if (node.Name.Kind.TypeName != theirs.Name.Kind.TypeName)
{
_deltas.Add(new RemoveControl(context.Path, node.Name.Identifier, context.IsInComponent));
_deltas.Add(new AddControl(context.Path, node, GetSubtreeStates(node), context.IsInComponent));
return;
}
var controlPath = context.Path.Append(node.Name.Identifier);
var theirChildrenDict = theirs.Children.ToDictionary(child => child.Name.Identifier);
foreach (var child in node.Children)
{
var childName = child.Name.Identifier;
if (theirChildrenDict.TryGetValue(childName, out var theirChild))
{
child.Accept(this, new ControlDiffContext(controlPath, theirChild, context.IsInComponent));
theirChildrenDict.Remove(childName);
}
else
{
_deltas.Add(new AddControl(controlPath, child, GetSubtreeStates(child), context.IsInComponent));
}
}
foreach (var kvp in theirChildrenDict)
{
_deltas.Add(new RemoveControl(controlPath, kvp.Key, context.IsInComponent));
}
_childTemplateStore.TryGetTemplate(node.Name.Identifier, out var childTemplate);
// Let's handle properties:
var theirPropDict = theirs.Properties.ToDictionary(prop => prop.Identifier);
foreach (var prop in node.Properties)
{
var propName = prop.Identifier;
if (theirPropDict.TryGetValue(propName, out var theirProp))
{
prop.Accept(this, new ControlDiffContext(controlPath, theirProp, context.IsInComponent));
theirPropDict.Remove(propName);
}
else
{
// Added property
if (childTemplate?.IsComponentTemplate ?? false)
{
var childCustomProperties = childTemplate.CustomProperties.ToDictionary(c => c.Name);
if (childCustomProperties.TryGetValue(prop.Identifier, out var customProp))
{
_deltas.Add(ChangeProperty.GetComponentCustomPropertyChange(controlPath, prop.Identifier, prop.Expression.Expression, customProp));
continue;
}
}
_deltas.Add(ChangeProperty.GetNormalPropertyChange(controlPath, prop.Identifier, prop.Expression.Expression));
}
}
// Removed props
foreach (var kvp in theirPropDict)
{
_deltas.Add(ChangeProperty.GetPropertyRemovedChange(controlPath, kvp.Key));
}
// And component functions
var theirComponentFunctions = theirs.Functions.ToDictionary(func => func.Identifier);
foreach (var func in node.Functions)
{
var propName = func.Identifier;
if (theirComponentFunctions.TryGetValue(propName, out var theirFunc))
{
func.Accept(this, new ControlDiffContext(controlPath, theirFunc, context.IsInComponent));
theirComponentFunctions.Remove(propName);
}
else
{
if (childTemplate?.IsComponentTemplate ?? false)
{
var childCustomProperties = childTemplate.CustomProperties.ToDictionary(c => c.Name);
if (childCustomProperties.TryGetValue(func.Identifier, out var customProperty))
{
_deltas.Add(ChangeComponentFunction.GetFunctionChangeWithMetadata(context.Path, func.Identifier, func, customProperty));
continue;
}
}
}
}
// Removed functions
foreach (var kvp in theirComponentFunctions)
{
_deltas.Add(ChangeComponentFunction.GetFunctionRemoval(controlPath, kvp.Key));
}
}