import Cocoa

category UIView(ZZmlTVOSBuilder) {

  initWithZML:element inSuperview component loader {
    self = self initWithFrame: NSZeroRect

    translatesAutoresizingMaskIntoConstraints = NO
    loadChildViewsFromZML:element inSuperview component loader

    return self
  }

  loadChildViewsFromZML:element inSuperview:sv component loader {
    for child in element.children {
      if child.kind != NSXMLElementKind
        continue
  
      subview = loader viewForXMLElement:child superView:sv component
      if subview == nil
        continue
  
      hNode = child attributeForName:"h"
      vNode = child attributeForName:"v"
  
      subview constrainH: hNode.stringValue ?? "|-[self]-|"
                       V: vNode.stringValue ?? "|-[self]-|"
    }
  }

  // other

  doIt { // -doIt or -doIt:, depends on :
  }    
}

class MainWindowController : UIWindowController {

  awakeFromNib {
    super
    windowFrameAutosaveName = "Main Window"
  }
}