<?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="Menulist Tests"
        onload="setTimeout(testtag_menulists, 0);"
        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">

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

<vbox id="scroller" style="overflow: auto; height: 60px">
  <menulist id="menulist" onpopupshown="test_menulist_open(this, this.parentNode)"
            onpopuphidden="$('menulist-in-listbox').open = true;">
    <menupopup id="menulist-popup"/>
  </menulist>
  <button label="Two"/>
  <button label="Three"/>
</vbox>
<richlistbox id="scroller-in-listbox" style="overflow: auto; height: 60px">
  <richlistitem allowevents="true">
    <menulist id="menulist-in-listbox" onpopupshown="test_menulist_open(this, this.parentNode.parentNode)"
              onpopuphidden="SimpleTest.executeSoon(() => checkScrollAndFinish().catch(ex => ok(false, ex)));">
      <menupopup id="menulist-in-listbox-popup">
        <menuitem label="One" value="one"/>
        <menuitem label="Two" value="two"/>
      </menupopup>
    </menulist>
  </richlistitem>
  <richlistitem><label value="Two"/></richlistitem>
  <richlistitem><label value="Three"/></richlistitem>
  <richlistitem><label value="Four"/></richlistitem>
  <richlistitem><label value="Five"/></richlistitem>
  <richlistitem><label value="Six"/></richlistitem>
</richlistbox>

<hbox>
  <menulist id="menulist-size">
    <menupopup>
      <menuitem label="Menuitem Label" style="width: 200px"/>
    </menupopup>
  </menulist>
</hbox>

<menulist id="menulist-initwithvalue" value="two">
  <menupopup>
    <menuitem label="One" value="one"/>
    <menuitem label="Two" value="two"/>
    <menuitem label="Three" value="three"/>
  </menupopup>
</menulist>
<menulist id="menulist-initwithselected" value="two">
  <menupopup>
    <menuitem label="One" value="one"/>
    <menuitem label="Two" value="two"/>
    <menuitem label="Three" value="three" selected="true"/>
  </menupopup>
</menulist>

<menulist id="menulist-clipped">
  <menupopup style="height: 65px">
    <menuitem label="One" value="one"/>
    <menuitem label="Two" value="two"/>
    <menuitem label="Three" value="three"/>
    <menuitem label="Four" value="four"/>
    <menuitem label="Five" value="five" selected="true"/>
    <menuitem label="Six" value="six"/>
    <menuitem label="Seven" value="seven"/>
    <menuitem label="Eight" value="eight"/>
  </menupopup>
</menulist>

<script class="testbody" type="application/javascript">
<![CDATA[

function waitForEvent(subject, eventName, checkFn) {
  return new Promise(resolve => {
    subject.addEventListener(eventName, function listener(event) {
      if (checkFn && !checkFn(event)) {
        return;
      }
      subject.removeEventListener(eventName, listener);
      SimpleTest.executeSoon(() => resolve(event));
    });
  });
}

SimpleTest.waitForExplicitFinish();

function testtag_menulists()
{
  testtag_menulist_UI_start($("menulist"), false);
}

function testtag_menulist_UI_start(element)
{
  // check the menupopup property
  var popup = element.menupopup;
  ok(popup && popup.localName == "menupopup" &&
              popup.parentNode == element, "menupopup");

  // test the interfaces that menulist implements
  test_nsIDOMXULMenuListElement(element);
}

function testtag_menulist_UI_finish(element)
{
  element.value = "";

  test_nsIDOMXULSelectControlElement(element, "menuitem", null);

  $("menulist").open = true;
}

function test_nsIDOMXULMenuListElement(element)
{
  is(element.open, false, "open");

  element.appendItem("Item One", "one");
  var seconditem = element.appendItem("Item Two", "two");
  var thirditem = element.appendItem("Item Three", "three");
  element.appendItem("Item Four", "four");

  seconditem.image = "happy.png";
  seconditem.setAttribute("description", "This is the second description");
  thirditem.image = "happy.png";
  thirditem.setAttribute("description", "This is the third description");

  // check the image and description properties
  element.selectedIndex = 1;
  is(element.image, "happy.png", "image set to selected");
  is(element.description, "This is the second description", "description set to selected");
  element.selectedIndex = -1;
  is(element.image, "", "image set when none selected");
  is(element.description, "", "description set when none selected");
  element.selectedIndex = 2;
  is(element.image, "happy.png", "image set to selected again");
  is(element.description, "This is the third description", "description set to selected again");

  // check that changing the properties of the selected item changes the menulist's properties
  let properties = [{attr: "label", value: "Item Number Three"},
                    {attr: "value", value: "item-three"},
                    {attr: "image", value: "smile.png"},
                    {attr: "description", value: "Changed description"}];
  test_nsIDOMXULMenuListElement_properties(element, thirditem, properties);
}

function test_nsIDOMXULMenuListElement_properties(element, thirditem, properties)
{
  let {attr, value} = properties.shift();
  let last = !properties.length;

  let mutObserver = new MutationObserver(() => {
    is(element.getAttribute(attr), value, `${attr} modified`);
    done();
  });
  mutObserver.observe(element, { attributeFilter: [attr] });

  let failureTimeout = setTimeout(() => {
    ok(false, `${attr} should have updated`);
    done();
  }, 2000);

  function done()
  {
    clearTimeout(failureTimeout);
    mutObserver.disconnect();
    if (!last) {
      test_nsIDOMXULMenuListElement_properties(element, thirditem, properties);
    }
    else {
      test_nsIDOMXULMenuListElement_unselected(element, thirditem);
    }
  }

  thirditem.setAttribute(attr, value)
}

function test_nsIDOMXULMenuListElement_unselected(element, thirditem)
{
  let seconditem = thirditem.previousElementSibling;
  seconditem.label = "Changed Label 2";
  is(element.label, "Item Number Three", "label of another item modified");

  element.selectedIndex = 0;
  is(element.image, "", "image set to selected with no image");
  is(element.description, "", "description set to selected with no description");
  test_nsIDOMXULMenuListElement_finish(element);
}

function test_nsIDOMXULMenuListElement_finish(element)
{
  // check the removeAllItems method
  element.appendItem("An Item", "anitem");
  element.appendItem("Another Item", "anotheritem");
  element.removeAllItems();
  is(element.itemCount, 0, "removeAllItems");

  testtag_menulist_UI_finish(element);
}

function test_menulist_open(element, scroller)
{
  element.appendItem("Scroll Item 1", "scrollitem1");
  element.appendItem("Scroll Item 2", "scrollitem2");
  element.focus();
  element.selectedIndex = 0;

/*
  // bug 530504, mousewheel while menulist is open should not scroll menulist
  // items or parent
  var scrolled = false;
  var mouseScrolled = function (event) { scrolled = true; }
  window.addEventListener("DOMMouseScroll", mouseScrolled, false);
  synthesizeWheel(element, 2, 2, { deltaY: 10,
                                   deltaMode: WheelEvent.DOM_DELTA_LINE });
  is(scrolled, true, "mousescroll " + element.id);
  is(scroller.scrollTop, 0, "scroll position on mousescroll " + element.id);
  window.removeEventListener("DOMMouseScroll", mouseScrolled, false);
*/

  // bug 543065, hovering the mouse over an item should highlight it, not
  // scroll the parent, and not change the selected index.
  var item = element.menupopup.childNodes[1];

  synthesizeMouse(element.menupopup.childNodes[1], 2, 2, { type: "mousemove" });
  synthesizeMouse(element.menupopup.childNodes[1], 6, 6, { type: "mousemove" });
  is(element.activeChild, item, "activeChild after menu highlight " + element.id);
  is(element.selectedIndex, 0, "selectedIndex after menu highlight " + element.id);
  is(scroller.scrollTop, 0, "scroll position after menu highlight " + element.id);

  element.open = false;
}

async function checkScrollAndFinish()
{
  is($("scroller").scrollTop, 0, "mousewheel on menulist does not scroll vbox parent");
  is($("scroller-in-listbox").scrollTop, 0, "mousewheel on menulist does not scroll listbox parent");

  let menulist = $("menulist-size");
  let shownPromise = waitForEvent(menulist, "popupshown");
  menulist.open = true;
  await shownPromise;

  sendKey("ALT");
  is(menulist.menupopup.state, "open", "alt doesn't close menulist");
  menulist.open = false;

  await dragScroll();
}

async function dragScroll()
{
  let menulist = $("menulist-clipped");

  let shownPromise = waitForEvent(menulist, "popupshown");
  menulist.open = true;
  await shownPromise;

  let popup = menulist.menupopup;
  let getScrollPos = () => popup.scrollBox.scrollbox.scrollTop;
  let scrollPos = getScrollPos();
  let popupRect = popup.getBoundingClientRect();

  // First, check that scrolling does not occur when the mouse is moved over the
  // anchor button but not the popup yet.
  synthesizeMouseAtPoint(popupRect.left + 5, popupRect.top - 10, { type: "mousemove" });
  is(getScrollPos(), scrollPos, "scroll position after mousemove over button should not change");

  synthesizeMouseAtPoint(popupRect.left + 20, popupRect.top + 10, { type: "mousemove" });
  synthesizeMouseAtPoint(popupRect.left + 20, popupRect.top + 10, { type: "mousedown", buttons: 1 });

  // Dragging above the popup scrolls it up.
  let scrolledPromise = waitForEvent(popup, "scroll", false,
    () => getScrollPos() < scrollPos - 5);
  synthesizeMouseAtPoint(popupRect.left + 20, popupRect.top - 20, { type: "mousemove", buttons: 1 });
  await scrolledPromise;
  ok(true, "scroll position at drag up");

  // Dragging below the popup scrolls it down.
  scrollPos = getScrollPos();
  scrolledPromise = waitForEvent(popup, "scroll", false,
    () => getScrollPos() > scrollPos + 5);
  synthesizeMouseAtPoint(popupRect.left + 20, popupRect.bottom + 20, { type: "mousemove", buttons: 1 });
  await scrolledPromise;
  ok(true, "scroll position at drag down");

  // Releasing the mouse button and moving the mouse does not change the scroll position.
  scrollPos = getScrollPos();
  synthesizeMouseAtPoint(popupRect.left + 20, popupRect.bottom + 25, { type: "mouseup" });
  is(getScrollPos(), scrollPos, "scroll position at mouseup should not change");

  synthesizeMouseAtPoint(popupRect.left + 20, popupRect.bottom + 20, { type: "mousemove" });
  is(getScrollPos(), scrollPos, "scroll position at mousemove after mouseup should not change");

  // Now check dragging with a mousedown on an item. Make sure the element is
  // visible, as the asynchronous scrolling may have moved it out of view.
  popup.childNodes[4].scrollIntoView({ block: "nearest", behavior: "instant" });
  let menuRect = popup.childNodes[4].getBoundingClientRect();
  synthesizeMouseAtPoint(menuRect.left + 5, menuRect.top + 5, { type: "mousedown", buttons: 1 });

  // Dragging below the popup scrolls it down.
  scrolledPromise = waitForEvent(popup, "scroll", false,
    () => getScrollPos() > scrollPos + 5);
  synthesizeMouseAtPoint(popupRect.left + 20, popupRect.bottom + 20, { type: "mousemove", buttons: 1 });
  await scrolledPromise;
  ok(true, "scroll position at drag down from item");

  // Dragging above the popup scrolls it up.
  scrollPos = getScrollPos();
  scrolledPromise = waitForEvent(popup, "scroll", false,
    () => getScrollPos() < scrollPos - 5);
  synthesizeMouseAtPoint(popupRect.left + 20, popupRect.top - 20, { type: "mousemove", buttons: 1 });
  await scrolledPromise;
  ok(true, "scroll position at drag up from item");

  scrollPos = getScrollPos();
  synthesizeMouseAtPoint(popupRect.left + 20, popupRect.bottom + 25, { type: "mouseup" });
  is(getScrollPos(), scrollPos, "scroll position at mouseup should not change");

  synthesizeMouseAtPoint(popupRect.left + 20, popupRect.bottom + 20, { type: "mousemove" });
  is(getScrollPos(), scrollPos, "scroll position at mousemove after mouseup should not change");

  menulist.open = false;

  let mouseMoveTarget = null;
  popup.childNodes[4].click();
  addEventListener("mousemove", function checkMouseMove(event) {
    mouseMoveTarget = event.target;
  }, {once: true});
  synthesizeMouseAtPoint(popupRect.left + 20, popupRect.bottom + 20, { type: "mousemove" });
  isnot(mouseMoveTarget, popup, "clicking on item when popup closed doesn't start dragging");

  SimpleTest.finish();
}

]]>
</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>