diff options
| author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
|---|---|---|
| committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
| commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
| tree | 10027f336435511475e392454359edea8e25895d /image/test/mochitest/test_drawDiscardedImage.html | |
| parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
| download | UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip | |
Add m-esr52 at 52.6.0
Diffstat (limited to 'image/test/mochitest/test_drawDiscardedImage.html')
| -rw-r--r-- | image/test/mochitest/test_drawDiscardedImage.html | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/image/test/mochitest/test_drawDiscardedImage.html b/image/test/mochitest/test_drawDiscardedImage.html new file mode 100644 index 000000000..7c99ba504 --- /dev/null +++ b/image/test/mochitest/test_drawDiscardedImage.html @@ -0,0 +1,85 @@ +<!DOCTYPE HTML> +<html> +<!-- +https://bugzilla.mozilla.org/show_bug.cgi?id=731419 +--> +<head> + <title>Test for Bug 731419 - Draw an ostensibly discarded image to a canvas</title> + <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> +</head> + +<body> + +<!-- + Load an image in an iframe, then draw that image to a canvas. Then set the + iframe to display:none (after bug 731419, this causes the image's decoded + data to be discarded) and draw the image to a canvas again. We should draw + the same image data both times. +--> + +<script> + +SimpleTest.waitForExplicitFinish(); + +var data1; + +function drawImage() +{ + var canvas = document.getElementById('canvas'); + var ctx = canvas.getContext('2d'); + var iframeDoc = document.getElementById('iframe').contentDocument; + + ctx.clearRect(0, 0, canvas.height, canvas.width); + ctx.drawImage(iframeDoc.getElementById('image'), 0, 0); + return canvas.toDataURL(); +} + +function iframeLoad() +{ + data1 = drawImage(); + document.getElementById('iframe').style.display = 'none'; + + // Spin the event loop a few times to give the image in the display:none + // iframe a chance to be discarded. + SimpleTest.executeSoon(function() { + SimpleTest.executeSoon(function() { + SimpleTest.executeSoon(function() { + step2(); + }); + }); + }); +} + +function step2() +{ + is(drawImage(), data1, "Same image before and after iframe display:none"); + SimpleTest.finish(); +} + +</script> + +<canvas id='canvas'></canvas> + +<iframe id='iframe' onload='iframeLoad()' src='data:text/html,<img id="image" +src="data:image/png;base64, +iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAADRElEQVQ4EQXBTWgcZQCA4ff7ZmZ3 +NpvNZLObTWpCuoZGIxWJplAKbVUKavUiHrQHaRG1XrV4SNuD4MFcRDwUoR4qEq2gFUlBEWmtppYi +acSmMakxtfkx/5tNdmd35/8bn0cAzJ7IXwKGH/q8NDF48vy+7vk/3tzVXDs8nj9cAAiDcD70gwVi +vvvr4tsjAAAAAmD2RD4GOL34wge21XHsnHWh9/aUjX1pC4C1UpXrP08zN7vMvvujPx3P/PD+0VH3 +BoAcTspXAbK9iuGe78+csy70ZnsVvh+xWQ8p1QI8dNK7CiT9CmeO28/4ZsuVX9/IvQwgmzLaU9LS +AGh/3KJ5jw6A6ynyL7Xx7UCORiwQGRN0g7C4m4FX9poNV35681ShU6ZbxKDRLJVuZQl9RdSQRB4c +OtDGoQNtPGHBuh0SaAa+ZvLjHYt8fwfZrpTl2cFp2ZwVDyQzSgLgVIndGN/tIP/c61y/WWb14gaV +asTWioPSDabnfCqVkK7BHKHtPK0n06oFGQHgewJtbw8AujGNkYTNpTJxbYfaygqR0piYkaRkhMya +eI2oX9dTQRIFmtrmz7EGpS9vESZjAN7tfo/UL2PouoZwbfxIo9jaoLWlzI7jEPmhLjVEbXs5IPAE +jx5M0Z5RZDJwqjCENFN8XBtmOP0FXq1O6NR5snsRtsv4C+voCdHQpcfVtTn/xUKXTrMlyfck6BCC +a02fkDZDqirF5JVrRA8ewagu8NbADN6az9btMoTqjnasKDTHjp5PSM3I5DQy7UliZbCz7bCwFDD/ +b52h3BCviVHOHv2bvmydyvwOM5MSmch9Ji4/SxMNcaNJTw707zdJmBqeo+G5BuO/V6AzQ5Oo01MI +KBaTOOis3rPZrKeqrbn2hwXA10fY7zvicqeZKPQ8YpKxJCgIpEQXisBVhG6MYcQ0pGJp2XWnSpx8 +52o0ogF8c5/ltMlGIlYHo0qQrq9HxHWFvx3RqCoCFzwn4L+tiIVV5Y5MhWc/mlDnATQAgMkynbMb +opoN4z2hUAlPBdpO6FNp+JTtkPVaHE7NYX94K/xqrBT/BvwDIAAAgALQAfT1aWJwtyYea9VEXoAo +RfHGYhTfvRfF48BdYB3YAPgfnOuE39kFlREAAAAASUVORK5CYII=">'></iframe> + +</body> +</html> + |