1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
<!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>Drag and drop: dropping block element onto canvas</title>
<style type="text/css">
div
{width:20px;
height:20px;
background-color:green;}
</style>
<script type="application/ecmascript">
function paint(color)
{var canvas = document.querySelector('canvas'),
c = canvas.getContext('2d');
c.fillStyle = 'green';
c.beginPath();
c.moveTo(0,0);
c.lineTo(100,0);
c.lineTo(100,100);
c.lineTo(0,100);
c.closePath();
c.fill();}
function start(event)
{event.dataTransfer.effectAllowed = 'copy';
event.dataTransfer.setData('text/plain', 'green');}
</script>
</head>
<body onload="paint('gray')">
<div draggable="true" ondragstart="start(event)"></div>
<p>Drag green box above to the gray canvas below. Canvas should turn green when you drop green box on it.</p>
<p>
<canvas width="100" height="100" ondragenter="event.preventDefault()" ondragover="return false">Canvas</canvas>
</p>
<script>
async function test(){
const canvas = document.querySelector('canvas');
const div = document.querySelector('div');
function onDropCallBack(event) {
paint(event.dataTransfer.getData('text/plain'));
let style = getComputedStyle(div);
let currentColor = "rgb(0, 128, 0)";
assert_equals(style.getPropertyValue("background-color"), currentColor);
return true;
}
dragDropTest(div, canvas, onDropCallBack, 'Dragging the canvas to the bottom div should turn it green');
};
test();
</script>
</body>
</html>
|
