001.html - mozsearch

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /html/editing/dnd/canvas/001.html - WPT Dashboard Interop Dashboard

<!doctype html>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="/resources/testdriver.js"></script>

<script src="/resources/testdriver-vendor.js"></script>

<script src="/resources/testdriver-actions.js"></script>

<script src="../resources/test-helper.js"></script>

<head>

<title>Canvas drag and drop carrying image as dataURL</title>

<style type="text/css">

div[ondragenter]

  {width:105px;

  min-height:105px;

  text-align:center;

  margin-top:20px;

  padding:10px;

  border:solid thin navy;}

p:first-child

  {padding-left:12px;}

</style>

<script type="application/ecmascript">

function addImage(event)

  {var c = document.createElement('img');

  c.setAttribute('src',event.dataTransfer.getData('text/uri-list'));

  document.querySelector('div').appendChild(c);}

function start(event)

  {event.dataTransfer.effectAllowed = 'copy';

  event.dataTransfer.setData('text/uri-list', document.querySelector('canvas').toDataURL('image/png'));}

</script>

</head>

<body>

<p>

  <canvas width="100" height="100" draggable="true" ondragstart="start(event)">Canvas</canvas>

</p>

<p>Drag canvas pattern above to the box below. It should be copied to the box once you drop it there.</p>

<div

  ondragenter="event.preventDefault()"

  ondragover="return false"

/>

<script type="application/ecmascript">

var canvas = document.querySelector('canvas'),

c = canvas.getContext('2d');

for(var x = 0; x != 50; x++)

  {c.fillStyle = (x%2 == 0)?'navy':'white';

  c.beginPath();

  c.moveTo(x,x);

  c.lineTo(100-x,x);

  c.lineTo(100-x,100-x);

  c.lineTo(x,100-x);

  c.closePath();

  c.fill();}

async function test() {

  const canvas = document.querySelector('canvas');

  const div = document.querySelector('div');

  function onDropCallBack(event) {

    addImage(event);

    const img = document.querySelector('img');

    assert_equals(img.src, canvas.toDataURL('image/png'));

    return true;

  dragDropTest(canvas, div, onDropCallBack, 'Dragging the canvas to the bottom div should turn it green');

test();

</script>

</body>

</html>