<?xml version="1.0"?>

<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>

<window
  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
  width="400"
  height="600">

<vbox style="max-width: 400px;">
  <!-- default: the inner hbox should expand the stack. -->
  <hbox style="height: 20px;">
    <stack flex="1" style="background: yellow;">
      <hbox style="width: 100px; height: 20px; background: blue;" top="0" left="100"/>
    </stack>
    <spacer flex="3" style="background: green;"/>
  </hbox>

  <!-- same as above, with explicit -moz-stack-sizing: stretch-to-fit -->
  <hbox style="height: 20px;">
    <stack flex="1" style="background: yellow;">
      <hbox style="-moz-stack-sizing: stretch-to-fit; width: 100px; height: 20px; background: blue;" top="0" left="100"/>
    </stack>
    <spacer flex="3" style="background: green;"/>
  </hbox>

  <!-- same as above, but with overflow: hidden -->
  <hbox style="height: 20px;">
    <stack flex="1" style="overflow: hidden; background: yellow;">
      <hbox style="-moz-stack-sizing: stretch-to-fit; width: 100px; height: 20px; background: blue;" top="0" left="100"/>
    </stack>
    <spacer flex="3" style="background: green; height: 20px;"/>
  </hbox>

  <!-- inner hbox has stack-sizing: ignore, but the stack doesn't have overflow: hidden set; the stack will stretch
       just enough to include the child, but no more -->
  <hbox style="height: 20px;">
    <stack flex="1" style="background: yellow;">
      <hbox style="-moz-stack-sizing: ignore; width: 100px; height: 20px; background: blue;" top="0" left="100"/>
    </stack>
    <spacer flex="3" style="background: green; height: 20px;"/>
  </hbox>

  <!-- same as above, except stack has overflow: hidden set, so the blue shouldn't be visible -->
  <hbox style="height: 20px;">
    <stack flex="1" style="overflow: hidden; background: yellow;">
      <hbox style="-moz-stack-sizing: ignore; width: 100px; height: 20px; background: blue;" top="0" left="100"/>
    </stack>
    <spacer flex="3" style="background: green; height: 20px;"/>
  </hbox>

  <!-- no flex on the stack, but an explicit size; the child will cause us to resize the stack during Layout -->
  <hbox style="height: 20px;">
    <stack style="width: 100px; background: yellow;">
      <hbox style="width: 100px; height: 20px; background: transparent;" top="0" left="100"/>
    </stack>
    <spacer flex="1" style="background: green;"/>
  </hbox>

  <!-- same as above, but with stack-sizing: ignore; the stack should not be resized -->
  <hbox style="height: 20px;">
    <stack style="width: 100px; background: yellow;">
      <hbox style="-moz-stack-sizing: ignore; width: 100px; height: 20px; background: transparent;" top="0" left="100"/>
    </stack>
    <spacer flex="1" style="background: green;"/>
  </hbox>

</vbox>

</window>
