wpt / css / cssom-view / elementFromPoint.html

Status: FAIL | Duration: 57ms | Subtests: 3/11 | Open test on wpt.live | wpt.fyi

TestTest SourceSubtests (3/11)

Data from commit:
a50cb89 wpt: run reference-named files which are themselves tests (#836) (2026-09-03)

SubtestStatusMessage
Negative co-ordinatesPASS
co-ordinates larger than the viewportPASS
co-ordinates larger than the viewport from in iframeFAILcannot convert 'null' or 'undefined' to object
Return first element that is the target for hit testingFAILcannot convert 'null' or 'undefined' to object
First element to get mouse events with pointer-events cssFAILcannot convert 'null' or 'undefined' to object
SVG element at x,yPASS
transformed element at x,yFAILcannot convert 'null' or 'undefined' to object
no hit target at x,yFAILframes is not defined
No viewport availableFAILcannot convert 'null' or 'undefined' to object
Image MapsFAILcannot convert 'null' or 'undefined' to object
FieldsetsFAILcannot convert 'null' or 'undefined' to object

/css/cssom-view/elementFromPoint.html

<!DOCTYPE html>
<title>cssom-view - elementFromPoint</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
  .size {
    width:60px;
    height:60px;
  }
  .overlay {
    position:absolute;
    top:69px;
    pointer-events:none;
  }
  .purple {
    background-color: rebeccapurple;
  }
  .yellow {
    background-color: yellow;
  }
  .teal {
    background-color: teal;
  }
  .pink {
    background-color: pink;
  }
</style>
<body>
  <div id='purple' class="size purple" >&nbsp;</div>
  <div id='yellow' class="size yellow">&nbsp;</div>
  <div id='teal' class="size overlay teal">&nbsp;</div>
  <iframe id=iframe-1 src="iframe.html" style='display:none;position:absolute; left:300px;'></iframe>
  <iframe id=iframe-2 src="iframe.html" width="" height=""></iframe>
  <iframe id=iframe-3 width="" height=""></iframe>
  <svg id=squiggle xmlns="http://www.w3.org/2000/svg" height="98" width="500" viewBox="0 0 581 98">
    <path stroke-dashoffset="0.00" stroke-dasharray="" d="M62.9 14.9c-25-7.74-56.6 4.8-60.4 24.3-3.73 19.6 21.6 35 39.6 37.6 42.8 6.2 72.9-53.4 116-58.9 65-18.2 191 101 215 28.8 5-16.7-7-49.1-34-44-34 11.5-31 46.5-14 69.3 9.38 12.6 24.2 20.6 39.8 22.9 91.4 9.05 102-98.9 176-86.7 18.8 3.81 33 17.3 36.7 34.6 2.01 10.2.124 21.1-5.18 30.1" stroke="#000" stroke-width="4.3" fill="none">
    </path>
  </svg>
  <svg id=svg-transform width="180" height="140"
  xmlns="http://www.w3.org/2000/svg"
  xmlns:xlink="http://www.w3.org/1999/xlink">

  <!-- Now we add a text element and apply rotate and translate to both -->
  <rect x="50" y="50" height="60" width="60" style="stroke:#000; fill: #0086B2" transform="translate(30) rotate(45 50 50)"></rect>
  <text x="60" y="105" transform="translate(30) rotate(45 50 50)"> Hello! </text>

</svg>
  <div id='pink' class='size pink' style='transform: translate(10px)'>&nbsp;</div>
  <div id='anotherteal' class='size teal' style='pointer-events:none'>Another teal</div>
  <img id="dinos" src="/images/blue-area.png" usemap="#dinos_map" border="0" width="364" height="40"/>
  <map id="dinos_map" name="dinos_map">
    <area id="rectG" shape="rect" coords="0,0,90,100" href="#" alt="area 1"/>
    <area id="circleO" shape="circle" coords="120,60,30" href="#" alt="area 2"/>
    <area id="polyLE" shape="poly" coords="280,0,310,0,360,30,360,90,280,90" href="#" alt="area 3"/>
  </map>
  <!-- Test for fieldsets not doing weird things.  Use a 200x200 div to hold
       all the bits for this test. Also, place it top/right, so it is not below
       the bottom edge of the viewport. -->
  <div style="position: absolute; width: 200px; height: 200px; right: 0; top: 0">
    <div id="fieldset-div"
         class="size" style="position: absolute; top: 0; left: 0">
    </div>
    <fieldset id="fieldset"
              class="size"
              style="position: absolute; top: 100px; left: 100px; border-radius: 100px">
      <!-- Place the child span so the overflow area of the fieldset overlaps
           the div -->
      <span style="position: absolute; top: -100px; left: -100px; height: 1px; width: 1px"></span>
    </fieldset>
  </div>
  <script>
    setup({explicit_done:true});
    window.onload = function () {
      test(function () {
              assert_equals(document.elementFromPoint(-1, -1), null,
                "both co-ordinates passed in are negative so should have returned a null");
              assert_equals(document.elementFromPoint(-1, -1), null,
                "x co-ordinates passed in are negative so should have returned a null");
              assert_equals(document.elementFromPoint(-1, -1), null,
                "y co-ordinates passed in are negative so should have returned a null");
                  }, "Negative co-ordinates");

      test(function () {
              var viewportX = window.innerWidth;
              var viewportY = window.innerHeight;
              assert_equals(document.elementFromPoint(viewportX + 100, 10), null,
                "X co-ordinates larger than viewport");
              assert_equals(document.elementFromPoint(10, viewportY + 100), null,
                "Y co-ordinates larger than viewport");
              assert_equals(document.elementFromPoint(viewportX + 100, viewportY + 100), null,
                "X, Y co-ordinates larger than viewport");
      }, "co-ordinates larger than the viewport");

      test(function () {
              var viewportX = window.frames[1].innerWidth;
              var viewportY = window.frames[1].innerHeight;
              var iframeRect = document.getElementById('iframe-2').getBoundingClientRect();
              assert_equals(null, window.frames[1].document.elementFromPoint(iframeRect.right + viewportX + 100, 10),
                "X co-ordinates larger than viewport");
              assert_equals(null, window.frames[1].document.elementFromPoint(10, iframeRect.bottom + viewportY + 100),
                "Y co-ordinates larger than viewport");
              assert_equals(null, window.frames[1].document.elementFromPoint(iframeRect.right + viewportX + 100,
                                                                             iframeRect.bottom + viewportY + 100),
                "X, Y co-ordinates larger than viewport");
      }, "co-ordinates larger than the viewport from in iframe");

      test(function () {
              assert_equals(document.elementFromPoint(10, 10), document.getElementById('purple'),
                "Should have returned the element with id `purple`");
            }, "Return first element that is the target for hit testing");

      test(function () {
              assert_equals(document.elementFromPoint(10, 80), document.getElementById('yellow'),
                "Should have returned the element with id `yellow` as element with `teal` has `pointer-events:none`");
            }, "First element to get mouse events with pointer-events css");

      test(function () {
             var svg = document.getElementById('squiggle');
             svg.scrollIntoView();
             var svgRect = svg.getBoundingClientRect();
             assert_equals(document.elementFromPoint(svgRect.left + Math.round(svgRect.width/2),
                                                     svgRect.top + Math.round(svgRect.height/2)),
                           svg,
                           "Should have returned the line SVG");
      }, "SVG element at x,y");

      test(function () {
              var svg = document.getElementById('svg-transform');
              svg.scrollIntoView();
              var svgRect = svg.getBoundingClientRect();
              assert_equals(document.elementFromPoint(svgRect.left + Math.round(svgRect.width/2),
                                                      svgRect.top + Math.round(svgRect.height/2)),
                            svg.querySelector("rect"),
                            "Should have returned SVG with Hello WPT! that has a transform");

              var pink = document.getElementById('pink');
              pink.scrollIntoView();
              var pinkRect = pink.getBoundingClientRect();
              assert_equals(document.elementFromPoint(pinkRect.left + Math.round(pinkRect.width/2),
                                                      pinkRect.top + Math.round(pinkRect.height/2)),
                            pink,
                            "Should have returned pink element that has a transform");

      }, "transformed element at x,y");

      test(function () {
            var anotherteal = document.getElementById('anotherteal');
            anotherteal.scrollIntoView();
            var anothertealRect = anotherteal.getBoundingClientRect();
            assert_equals(document.elementFromPoint(anothertealRect.left + Math.round(anothertealRect.width/2),
                                                    anothertealRect.top + Math.round(anothertealRect.height/2)),
                          document.body,
                          "Should have returned the root as it has pointer-events:none");

            var doc = frames[2].document;
            doc.removeChild(doc.documentElement);
            assert_equals(doc.elementFromPoint(0, 0), null,
                          "Should have returned null as no root element");
      }, "no hit target at x,y");

      test(function () {
            var doc = document.implementation.createHTMLDocument('foo');
            assert_equals(doc.elementFromPoint(0, 0), null,
                          "Should have returned the documentElement for the document")
      }, "No viewport available");

      test(function () {
          // HTML says:
          // Pointing device interaction with an image associated with a set of layered shapes per
          // the above algorithm must result in the relevant user interaction events being first
          // fired to the top-most shape covering the point that the pointing device indicated, if
          // any, or to the image element itself, if there is no shape covering that point.
          // https://html.spec.whatwg.org/multipage/embedded-content.html#image-map-processing-model
          var area = document.getElementById('rectG');
          var image = document.getElementById('dinos');
          area.scrollIntoView();
          var areaRect = image.getBoundingClientRect();
          areaRect.width = Math.min(areaRect.width, 90);
          areaRect.height = Math.min(areaRect.height, 100);
          assert_equals(document.elementFromPoint(areaRect.left + Math.round(areaRect.width/2),
                                                  areaRect.top + Math.round(areaRect.height/2)),
                        area,
                        "Should have returned the area element");
          assert_equals(document.elementFromPoint(areaRect.left + 92,
                                                  areaRect.top + 2),
                        image,
                        "Should have returned the image element");
      }, "Image Maps");

      test(function(){
          var fieldsetDiv = document.getElementById("fieldset-div");
          var divRect = fieldsetDiv.getBoundingClientRect();
          assert_equals(document.elementFromPoint(divRect.left + divRect.width/2,
                                                  divRect.top + divRect.height/2),
                        fieldsetDiv,
                        "The fieldset should not cover up the div it doesn't even overlap");

          var fieldset = document.getElementById("fieldset");
          var rect = fieldset.getBoundingClientRect();
          // A point 5px in from topleft will be outside the rounded border.
          assert_not_equals(document.elementFromPoint(rect.left + 5,
                                                      rect.top + 5),
                            fieldset,
                            "The fieldset should not be hit by hit-tests outside its rounded border");
      }, "Fieldsets");
      done();
    }
 </script>