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 <?xml version="1.0"?>

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

 <?xml-stylesheet href="chrome://mochikit/content/tests/SimpleTest/test.css" type="text/css"?>

 <window title="Popup Removing Tests"

         onload="setTimeout(nextTest, 0)"

         onDOMAttrModified="modified(event)"

         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">

 <!--

   This test checks that popup elements can be removed in various ways without

   crashing. It tests two situations, one with menus that are 'separate', and

   one with menus that are 'nested'. In each case, there are four levels of menu.

   The nextTest function starts the process by opening the first menu. A set of

   popupshown event listeners are used to open the next menu until all four are

   showing. This last one calls removePopup to remove the menu node from the

   tree. This should hide the popups as they are no longer in a document.

   A mutation listener is triggered when the fourth menu closes by having its

   open attribute cleared. This listener hides the third popup which causes

   its frame to be removed. Naturally, we want to ensure that this doesn't

   crash when the third menu is removed.

   -->

   <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>      

   <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>      

 <hbox>

 <menu id="nestedmenu1" label="1">

     <menupopup id="nestedpopup1" onpopupshown="if (event.target == this) this.firstChild.open = true">

       <menu id="nestedmenu2" label="2">

         <menupopup id="nestedpopup2" onpopupshown="if (event.target == this) this.firstChild.open = true">

           <menu id="nestedmenu3" label="3">

             <menupopup id="nestedpopup3" onpopupshown="if (event.target == this) this.firstChild.open = true">

               <menu id="nestedmenu4" label="4" onpopupshown="removePopups()">

                 <menupopup id="nestedpopup4">

                   <menuitem label="Nested 1"/>

                   <menuitem label="Nested 2"/>

                   <menuitem label="Nested 3"/>

                 </menupopup>

               </menu>

             </menupopup>

           </menu>

         </menupopup>

       </menu>

     </menupopup>

 </menu>

 <menu id="separatemenu1" label="1">

     <menupopup id="separatepopup1" onpopupshown="$('separatemenu2').open = true">

         <menuitem label="L1 One"/>

         <menuitem label="L1 Two"/>

         <menuitem label="L1 Three"/>

     </menupopup>

 </menu>

 <menu id="separatemenu2" label="2">

     <menupopup id="separatepopup2" onpopupshown="$('separatemenu3').open = true"

                                    onpopuphidden="popup2Hidden()">

         <menuitem label="L2 One"/>

         <menuitem label="L2 Two"/>

         <menuitem label="L2 Three"/>

     </menupopup>

 </menu>

 <menu id="separatemenu3" label="3" onpopupshown="$('separatemenu4').open = true">

     <menupopup id="separatepopup3">

         <menuitem label="L3 One"/>

         <menuitem label="L3 Two"/>

         <menuitem label="L3 Three"/>

     </menupopup>

 </menu>

 <menu id="separatemenu4" label="4" onpopupshown="removePopups()"

                                    onpopuphidden="$('separatemenu2').open = false">

     <menupopup id="separatepopup3">

         <menuitem label="L4 One"/>

         <menuitem label="L4 Two"/>

         <menuitem label="L4 Three"/>

     </menupopup>

 </menu>

 </hbox>

 <script class="testbody" type="application/javascript">

 <![CDATA[

 SimpleTest.waitForExplicitFinish();

 var gKey = "";

 gTriggerMutation = null;

 gChangeMutation = null;

 function nextTest()

 {

   if (gKey == "") {

     gKey = "separate";

   }

   else if (gKey == "separate") {

     gKey = "nested";

   }

   else {

     SimpleTest.finish();

     return;

   }

   $(gKey + "menu1").open = true;

 }

 function modified(event)

 {

   // use this mutation listener to hide the third popup, destroying its frame.

   // It gets triggered when the open attribute is cleared on the fourth menu.

   if (event.target == gTriggerMutation &&

       event.attrName == "open") {

     gChangeMutation.hidden = true;

     // force a layout flush

     document.documentElement.boxObject.width;

     gTriggerMutation = null;

     gChangeMutation = null;

   }

 }

 function removePopups()

 {

   var menu2 = $(gKey + "menu2");

   var menu3 = $(gKey + "menu3");

   is(menu2.getAttribute("open"), "true", gKey + " menu 2 open before");

   is(menu3.getAttribute("open"), "true", gKey + " menu 3 open before");

   gTriggerMutation = menu3;

   gChangeMutation = $(gKey + "menu4");

   var menu = $(gKey + "menu1");

   menu.parentNode.removeChild(menu);

   if (gKey == "nested") {

     // the 'separate' test checks this during the popup2 hidden event handler

     is(menu2.hasAttribute("open"), false, gKey + " menu 2 open after");

     is(menu3.hasAttribute("open"), false, gKey + " menu 3 open after");

     nextTest();

   }

 }

 function popup2Hidden()

 {

   is($(gKey + "menu2").hasAttribute("open"), false, gKey + " menu 2 open after");

   nextTest();

 }

 ]]>

 </script>

 <body xmlns="http://www.w3.org/1999/xhtml">

 <p id="display">

 </p>

 <div id="content" style="display: none">

 </div>

 <pre id="test">

 </pre>

 </body>

 </window>