Interacting with other Xholon webpages

xholonWorkbook.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--Xholon Workbook http://www.primordion.com/Xholon/gwt/ MIT License, Copyright (C) Ken Webb, Sat Nov 16 2019 14:22:41 GMT-0500 (Eastern Standard Time)-->
<XholonWorkbook>

<Notes><![CDATA[
Xholon
------
Title: Interacting with other Xholon webpages
Description: 
Url: http://www.primordion.com/Xholon/gwt/
InternalName: 
Keywords: 

My Notes
--------
November 16, 2019

In this workbook I explore interactions between two or more webpages in the same browser (Firefox or Chrome or other), where each page has the same web domain (primordion.com or localhost).

I've done this previously in my "The Love Letter" workbooks. There are eight of these.

References
----------
(1) from oldest to newest
http://127.0.0.1:8888/wb/editwb.html?app=b82b688d02e6b9f06fef&src=gist  The Love Letter - Jake Belknap
http://127.0.0.1:8888/wb/editwb.html?app=b684ec7bab639ba548db&src=gist  The Love Letter - Helen Elizabeth Worley
http://127.0.0.1:8888/wb/editwb.html?app=81786af30c8ac62e4753&src=gist  The Love Letter - Jake - no postMessage()
http://127.0.0.1:8888/wb/editwb.html?app=9460309abdef48f184cf&src=gist  The Love Letter - Helen - no postMessage()

http://127.0.0.1:8888/wb/editwb.html?app=9fce004c2e5389e60424&src=gist  The Love Letter - Helen - CrossApp
http://127.0.0.1:8888/wb/editwb.html?app=88113e296a37af87317f&src=gist  The Love Letter - Jake - CrossApp

http://127.0.0.1:8888/wb/editwb.html?app=dc52515ce0c60d6539693e145ddbf93f&src=gist  The Love Letter - Helen - PostMessage
http://127.0.0.1:8888/wb/editwb.html?app=80324485c0e348da6046cca2442b8153&src=gist  The Love Letter - Jake - PostMessage


]]></Notes> 

<_-.XholonClass>

  <!-- domain objects -->
  <PhysicalSystem/>
  <Block/>
  <Brick/>
  
  <!-- quantities -->
  <Height superClass="Quantity"/>
  
</_-.XholonClass>

<xholonClassDetails>
  <Block>
    <port name="height" connector="Height"/>
  </Block>
</xholonClassDetails>

<PhysicalSystem>
  <Block>
    <Height>0.1 m</Height>
  </Block>
  <Brick multiplicity="2"/>
</PhysicalSystem>

<Blockbehavior implName="org.primordion.xholon.base.Behavior_gwtjs"><![CDATA[
  var a = 123;
  var b = 456;
  var c = a * b;
  if (console) {
    console.log(c);
  }
  //# sourceURL=Blockbehavior.js
]]></Blockbehavior>

<Heightbehavior implName="org.primordion.xholon.base.Behavior_gwtjs"><![CDATA[
  var myHeight, testing;
  var beh = {
    postConfigure: function() {
      testing = Math.floor(Math.random() * 10);
      myHeight = this.cnode.parent();
    },
    act: function() {
      myHeight.println(this.toString());
    },
    toString: function() {
      return "testing:" + testing;
    }
  }
  //# sourceURL=Heightbehavior.js
]]></Heightbehavior>

<Brickbehavior implName="org.primordion.xholon.base.Behavior_gwtjs"><![CDATA[
  $wnd.xh.Brickbehavior = function Brickbehavior() {}

  $wnd.xh.Brickbehavior.prototype.postConfigure = function() {
    this.brick = this.cnode.parent();
    this.iam = " red brick";
  };

  $wnd.xh.Brickbehavior.prototype.act = function() {
    this.brick.println("I am a" + this.iam);
  };
  //# sourceURL=Brickbehavior.js
]]></Brickbehavior>

<Brickbehavior implName="org.primordion.xholon.base.Behavior_gwtjs"><![CDATA[
  console.log("I'm another brick behavior");
]]></Brickbehavior>

<SvgClient><Attribute_String roleName="svgUri"><![CDATA[data:image/svg+xml,
<svg width="100" height="50" xmlns="http://www.w3.org/2000/svg">
  <g>
    <title>Block</title>
    <rect id="PhysicalSystem/Block" fill="#98FB98" height="50" width="50" x="25" y="0"/>
    <g>
      <title>Height</title>
      <rect id="PhysicalSystem/Block/Height" fill="#6AB06A" height="50" width="10" x="80" y="0"/>
    </g>
  </g>
</svg>
]]></Attribute_String><Attribute_String roleName="setup">${MODELNAME_DEFAULT},${SVGURI_DEFAULT}</Attribute_String></SvgClient>

</XholonWorkbook>