File: transferFromImageBitmap-detached.html

package info (click to toggle)
firefox-esr 115.14.0esr-1~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 3,659,200 kB
  • sloc: cpp: 6,676,648; javascript: 5,690,850; ansic: 3,328,545; python: 1,120,605; asm: 397,163; xml: 180,531; java: 178,838; sh: 68,930; makefile: 20,999; perl: 12,595; objc: 12,561; yacc: 4,583; cs: 3,846; pascal: 2,840; lex: 1,720; ruby: 1,079; exp: 762; php: 436; lisp: 258; awk: 247; sql: 66; sed: 54; csh: 10
file content (34 lines) | stat: -rw-r--r-- 1,322 bytes parent folder | download | duplicates (24) 
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
 
<!DOCTYPE html>
<meta charset="utf-8">
<title>Canvas's ImageBitmapRenderingContext test</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<link rel="help" href="https://html.spec.whatwg.org/multipage/scripting.html#the-imagebitmap-rendering-context">
<script>
var width = 10;
var height = 10;

promise_test(function() {
    function testException(image) {
        var dstCanvas = document.createElement('canvas');
        dstCanvas.width = width;
        dstCanvas.height = height;
        var dstCtx = dstCanvas.getContext('bitmaprenderer');
        dstCtx.transferFromImageBitmap(image);

        // The image should be detached after transferFromImageBitmap.
        assert_equals(image.width, 0);
        assert_equals(image.height, 0);
        assert_throws_dom("InvalidStateError", function() { dstCtx.transferFromImageBitmap(image); });
    }

    var srcCanvas = document.createElement('canvas');
    srcCanvas.width = width;
    srcCanvas.height = height;
    var ctx = srcCanvas.getContext('2d');
    ctx.fillStyle = 'rgba(0, 255, 0, 0.5)';
    ctx.fillRect(0, 0, width, height);
    return createImageBitmap(srcCanvas).then(testException);
}, "Test transferFromImageBitmap(image) with a detached image should throw InvalidStateError");

</script>