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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="Arrow Panels"
        style="padding: 10px;"
        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
        xmlns:html="http://www.w3.org/1999/xhtml">

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

<stack flex="1">
  <label id="topleft" value="Top Left Corner" style="justify-self: left; margin-left: 15px; align-self: start; margin-top: 15px;"/>
  <label id="topright" value="Top Right" style="justify-self: right; margin-right: 15px; align-self: start; margin-top: 15px;"/>
  <label id="bottomleft" value="Bottom Left Corner" style="justify-self: left; margin-left: 15px; align-self: end; margin-bottom: 15px;"/>
  <label id="bottomright" value="Bottom Right" style="justify-self: right; margin-right: 15px; align-self: end; margin-bottom: 15px;"/>
  <!-- Our SimpleTest/TestRunner.js runs tests inside an iframe which sizes are W=500 H=300.
       'left' and 'top' values need to be set so that the panel (popup) has enough room to display on its 4 sides. -->
  <label id="middle" value="+/- Centered" style="justify-self: left; margin-left: 225px; align-self: start; margin-top: 135px;"/>
  <iframe id="frame" type="content"
          src="data:text/html,<input id='input'>" style="width: 100px; height: 100px; justify-self: left; margin-left: 225px; align-self: start; margin-top: 120px;"/>
</stack>

<panel id="panel" type="arrow" animate="false"
       onpopupshown="checkPanelPosition(this)" onpopuphidden="runNextTest.next()">
  <box style="width: 115px; height: 65px"/>
</panel>

<panel id="bigpanel" type="arrow" animate="false"
       onpopupshown="checkBigPanel(this)" onpopuphidden="runNextTest.next()">
  <box style="width: 125px; height: 3000px"/>
</panel>

<panel id="animatepanel" type="arrow"
       onpopupshown="animatedPopupShown = true;"
       onpopuphidden="animatedPopupHidden = true; runNextTest.next();">
  <label value="Animate Closed" style="height: 40px"/>
</panel>

<html:style type="text/css">
  panel {
    /**
     * We hardcode a panel padding here to avoid rounding issues caused by
     * using em unit padding, which is the default as of bug 1701920.
     */
    --arrowpanel-padding: 16px;
    /**
     * Linux and windows have some negative margin-inline that can change the
     * overflow calculations
     */
    margin-inline: 0 !important;
  }
</html:style>

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

SimpleTest.waitForExplicitFinish();

var expectedAnchor = null;
var expectedSide = "", expectedAnchorEdge = "";
var zoomFactor = 1;
var animatedPopupShown = false;
var animatedPopupHidden = false;
var runNextTest;

function startTest()
{
  runNextTest = nextTest();
  runNextTest.next();
}

function* nextTest()
{
  var panel = $("panel");

  function openPopup(position, anchor, expected, anchorEdge)
  {
    expectedAnchor = Node.isInstance(anchor) ? anchor : $(anchor);
    expectedSide = expected;
    expectedAnchorEdge = anchorEdge;

    panel.removeAttribute("side");
    panel.openPopup(expectedAnchor, position, 0, 0, false, false, null);
  }

  for (var iter = 0; iter < 2; iter++) {
    openPopup("after_start", "topleft", "top", "left");
    yield;
    openPopup("after_start", "bottomleft", "bottom", "left");
    yield;
    openPopup("before_start", "topleft", "top", "left");
    yield;
    openPopup("before_start", "bottomleft", "bottom", "left");
    yield;
    openPopup("after_start", "middle", "top", "left");
    yield;
    openPopup("before_start", "middle", "bottom", "left");
    yield;

    openPopup("after_start", "topright", "top", "right");
    yield;
    openPopup("after_start", "bottomright", "bottom", "right");
    yield;
    openPopup("before_start", "topright", "top", "right");
    yield;
    openPopup("before_start", "bottomright", "bottom", "right");
    yield;

    openPopup("after_end", "middle", "top", "right");
    yield;
    openPopup("before_end", "middle", "bottom", "right");
    yield;

    openPopup("start_before", "topleft", "left", "top");
    yield;
    openPopup("start_before", "topright", "right", "top");
    yield;
    openPopup("end_before", "topleft", "left", "top");
    yield;
    openPopup("end_before", "topright", "right", "top");
    yield;
    openPopup("start_before", "middle", "right", "top");
    yield;
    openPopup("end_before", "middle", "left", "top");
    yield;

    openPopup("start_before", "bottomleft", "left", "bottom");
    yield;
    openPopup("start_before", "bottomright", "right", "bottom");
    yield;
    openPopup("end_before", "bottomleft", "left", "bottom");
    yield;
    openPopup("end_before", "bottomright", "right", "bottom");
    yield;

    openPopup("start_after", "middle", "right", "bottom");
    yield;
    openPopup("end_after", "middle", "left", "bottom");
    yield;

    openPopup("topcenter bottomleft", "bottomleft", "bottom", "center left");
    yield;
    openPopup("bottomcenter topleft", "topleft", "top", "center left");
    yield;
    openPopup("topcenter bottomright", "bottomright", "bottom", "center right");
    yield;
    openPopup("bottomcenter topright", "topright", "top", "center right");
    yield;
    openPopup("topcenter bottomleft", "middle", "bottom", "center left");
    yield;
    openPopup("bottomcenter topleft", "middle", "top", "center left");
    yield;

    openPopup("leftcenter topright", "middle", "right", "center top");
    yield;
    openPopup("rightcenter bottomleft", "middle", "left", "center bottom");
    yield;

/*
    XXXndeakin disable these parts of the test which often cause problems, see bug 626563

    openPopup("after_start", frames[0].document.getElementById("input"), "top", "left");
    yield;

    setScale(frames[0], 1.5);
    openPopup("after_start", frames[0].document.getElementById("input"), "top", "left");
    yield;

    setScale(frames[0], 2.5);
    openPopup("before_start", frames[0].document.getElementById("input"), "bottom", "left");
    yield;

    setScale(frames[0], 1);
*/

    $("bigpanel").openPopup($("topleft"), "after_start", 0, 0, false, false, null, "start");
    yield;

    // switch to rtl mode
    document.documentElement.style.direction = "rtl";

    $("topleft").style.marginRight = "15px";
    $("topleft").style.justifySelf = "right";

    $("topright").style.marginLeft = "15px";
    $("topright").style.justifySelf = "left";

    $("bottomleft").style.marginRight = "15px";
    $("bottomleft").style.justifySelf = "right";

    $("bottomright").style.marginLeft = "15px";
    $("bottomright").style.justifySelf = "left";

    $("topleft").style.removeProperty("margin-left");
    $("topright").style.removeProperty("margin-right");
    $("bottomleft").style.removeProperty("margin-left");
    $("bottomright").style.removeProperty("margin-right");
  }

  // Test that a transition occurs when opening or closing the popup.
  if (matchMedia("(-moz-panel-animations").matches) {
    function transitionEnded() {
      if ($("animatepanel").state != "open") {
        is($("animatepanel").state, "showing", "state is showing during transitionend");
        ok(!animatedPopupShown, "popupshown not fired yet")
      } else {
        is($("animatepanel").state, "open", "state is open after transitionend");
        ok(animatedPopupShown, "popupshown now fired")
        SimpleTest.executeSoon(() => runNextTest.next());
      }
    }

    // Check that the transition occurs for an arrow panel with animate="true"
    $("animatepanel").addEventListener("transitionend", transitionEnded);
    $("animatepanel").openPopup($("topleft"), "after_start", 0, 0, false, false, null, "start");
    is($("animatepanel").state, "showing", "state is showing");
    yield;
    $("animatepanel").removeEventListener("transitionend", transitionEnded);

    synthesizeKey("KEY_Escape");
    ok(!animatedPopupHidden, "animated popup not hidden yet");
    yield;
  }

  SimpleTest.finish()
}

function setScale(win, scale)
{
  SpecialPowers.setFullZoom(win, scale);
  zoomFactor = scale;
}

function checkPanelPosition(panel)
{
  let anchor = panel.anchorNode;
  let adj = 0, hwinpos = 0, vwinpos = 0;
  if (anchor.ownerDocument != document) {
    var framerect = anchor.ownerGlobal.frameElement.getBoundingClientRect();
    hwinpos = framerect.left;
    vwinpos = framerect.top;
  }

  // Positions are reversed in rtl yet the coordinates used in the computations
  // are not, so flip the expected label side and anchor edge.
  var isRTL = (window.getComputedStyle(panel).direction == "rtl");
  if (isRTL) {
    var flipLeftRight = val => val == "left" ? "right" : "left";
    expectedAnchorEdge = expectedAnchorEdge.replace(/(left|right)/, flipLeftRight);
    expectedSide = expectedSide.replace(/(left|right)/, flipLeftRight);
  }

  var panelRect = panel.getBoundingClientRect();
  var anchorRect = anchor.getBoundingClientRect();
  var contentRect = panel.firstChild.getBoundingClientRect();
  switch (expectedSide) {
    case "top":
      ok(contentRect.top > vwinpos + anchorRect.bottom * zoomFactor + 5, "panel content is below");
      break;
    case "bottom":
      ok(contentRect.bottom < vwinpos + anchorRect.top * zoomFactor - 5, "panel content is above");
      break;
    case "left":
      ok(contentRect.left > hwinpos + anchorRect.right * zoomFactor + 5, "panel content is right");
      break;
    case "right":
      ok(contentRect.right < hwinpos + anchorRect.left * zoomFactor - 5, "panel content is left");
      break;
  }

  let desc = panel.id + ": anchored on " + expectedAnchorEdge + " to " + anchor.id + " | " + (isRTL ? "rtl" : "ltr") + " | " + anchor.getAttribute("style");
  let iscentered = false;
  if (expectedAnchorEdge.indexOf("center ") == 0) {
    expectedAnchorEdge = expectedAnchorEdge.substring(7);
    iscentered = true;
  }

  switch (expectedAnchorEdge) {
    case "top":
      adj = vwinpos + parseInt(getComputedStyle(panel).marginTop);
      if (iscentered)
        adj += anchorRect.height / 2;
      isWithinHalfPixel(panelRect.top, anchorRect.top * zoomFactor + adj, desc);
      break;
    case "bottom":
      adj = vwinpos + parseInt(getComputedStyle(panel).marginBottom);
      if (iscentered)
        adj += anchorRect.height / 2;
      isWithinHalfPixel(panelRect.bottom, anchorRect.bottom * zoomFactor - adj, desc);
      break;
    case "left":
      adj = hwinpos + parseInt(getComputedStyle(panel).marginLeft);
      if (iscentered)
        adj += anchorRect.width / 2;
      isWithinHalfPixel(panelRect.left, anchorRect.left * zoomFactor + adj, desc);
      break;
    case "right":
      adj = hwinpos + parseInt(getComputedStyle(panel).marginRight);
      if (iscentered)
        adj += anchorRect.width / 2;
      isWithinHalfPixel(panelRect.right, anchorRect.right * zoomFactor - adj, desc);
      break;
  }

  is(anchor, expectedAnchor, "anchor");

  is(panel.getAttribute("side"), expectedSide, "panel arrow side");

  panel.hidePopup();
}

function isWithinHalfPixel(a, b, desc)
{
  ok(Math.abs(a - b) <= 0.5, `${desc}: ${a} vs. ${b}`);
}

function checkBigPanel(panel)
{
  ok(panel.getBoundingClientRect().height < screen.height, "big panel height");
  panel.hidePopup();
}

SimpleTest.waitForFocus(startTest);

]]>
</script>

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

</window>