bugfix: better diff'ing for complex components

src/karax.nim

@@ -411,9 +411,8 @@ proc diff(newNode, oldNode: VNode; parent, current: Node; kxi: KaraxInstance): E
     else:
       let res = diff(x.expanded, oldExpanded, parent, current, kxi)
       if res == usenewNode:
-        #oldNode[i] = newNode[i]
-        #kxi.addPatchV(oldNode, i, newNode[i])
-        kxi.addPatch(pkReplace, parent, current, x.expanded)
+        #kxi.addPatch(pkReplace, parent, current, x.expanded)
+        discard "diff created a patchset for us, so this is fine"
       elif res != different:
         x.expanded = oldExpanded
         assert oldExpanded.dom != nil, "old expanded.dom is nil"

tests/blur.nim

@@ -59,7 +59,7 @@ proc update(current, next: VComponent) =
   let next = TextInput(next)
   current.value = next.value
   current.guid = next.guid
-  next.isActive = current.isActive
+  #next.isActive = current.isActive
 
 proc newTextInput*(style: VStyle = VStyle(); guid: cstring; value: cstring = cstring"",
                    onchange: proc(v: cstring) = nil): TextInput =
@@ -107,10 +107,12 @@ var
 proc renderPerson(text: cstring, index: int): VNode =
   proc select(ev: Event, n: VNode) =
     selected = index
+    errmsg = ""
 
   result = buildHtml():
-    tdiv(onClick=select):
+    tdiv:
       text text
+      button(onClick = select)
 
 proc createDom(): VNode =
   result = buildHtml(tdiv):