class-inheritance-$8.lzx

<canvas debug="true" width="100%">
  <class name="myclass" height="40" bgcolor="blue">
    <attribute name="button_label" type="text" value="button"/>
    <handler name="onclick">
      this.handleclick()
    </handler>
    <method name="handleclick">
      Debug.debug("this = %w, and classroot is %w", this, classroot);
    </method>
    <button name="b1" height="30" text="${parent.button_label}" onclick="Debug.debug('classroooot of this button is: %#w', classroot); parent.handleclick()"/>
  </class>
  <class name="another_class" extends="myclass"/> 
  <!-- foo and bar views are top-level instances, so their classroots are null.
    == The buttons are children of the foo and bar views, respectively, so ==
    == their classroots are defined. -->
  <myclass id="foo">
    <another_class id="bar" bgcolor="red" button_label="another button" y="25">
      <method name="handleclick">
        Debug.debug("this = %w, and classroot is %w", this, classroot);
      </method>
    </another_class>
  </myclass>
</canvas>
<!-- * X_LZ_COPYRIGHT_BEGIN ***************************************************
* Copyright 2007, 2008 Laszlo Systems, Inc.  All Rights Reserved.             *
* Use is subject to license terms.                                            *
* X_LZ_COPYRIGHT_END ****************************************************** -->