1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/image/test/mochitest/test_bug435296.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,81 @@
1.4 +<!DOCTYPE HTML>
1.5 +<html>
1.6 +<!--
1.7 +https://bugzilla.mozilla.org/show_bug.cgi?id=435296
1.8 +-->
1.9 +<head>
1.10 + <title>Test for Bug 435296</title>
1.11 + <script type="application/javascript" src="/MochiKit/MochiKit.js"></script>
1.12 + <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
1.13 + <script type="application/javascript" src="imgutils.js"></script>
1.14 + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
1.15 +</head>
1.16 +<body>
1.17 +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=435296">Mozilla Bug 435296</a>
1.18 +<img id="testimage" style="display: none;">
1.19 +<pre id="test">
1.20 +<script type="application/javascript">
1.21 +
1.22 +// Boilerplate
1.23 +SimpleTest.waitForExplicitFinish();
1.24 +
1.25 +// Assert that discarding isn't enabled, which might make this test go orange.
1.26 +ok(!getImagePref(DISCARD_ENABLED_PREF), "discarding should NOT be enabled here");
1.27 +
1.28 +// We want to make sure d-o-d is enabled, since that's what we're testing
1.29 +var oldDODPref = getImagePref(DECODEONDRAW_ENABLED_PREF);
1.30 +setImagePref(DECODEONDRAW_ENABLED_PREF, true);
1.31 +
1.32 +// We're relying on very particular behavior for certain images - clear the
1.33 +// image cache.
1.34 +clearImageCache();
1.35 +
1.36 +// In order to work around the effects introduced in bug 512435, we only load
1.37 +// the image after window onload fires
1.38 +function windowLoadHandler()
1.39 +{
1.40 + // Set the source and an onload handler
1.41 + var image = document.getElementById("testimage");
1.42 + image.src = "schrep.png";
1.43 + image.onload = imageLoadHandler;
1.44 +}
1.45 +
1.46 +function imageLoadHandler()
1.47 +{
1.48 + // The image is hidden, so it should not be decoded
1.49 + ok(!isFrameDecoded("testimage"), "image should not be decoded");
1.50 +
1.51 + // Make the image visible
1.52 + var image = document.getElementById("testimage");
1.53 + image.style.display = "inline";
1.54 +
1.55 + // Wait for the image to decode
1.56 + setTimeout("tryToFinish();", 500);
1.57 +}
1.58 +
1.59 +function tryToFinish()
1.60 +{
1.61 + // If it hasn't happened yet, wait longer. If it never happens, this test
1.62 + // will timeout after 300 seconds...
1.63 + if (!isFrameDecoded("testimage")) {
1.64 + setTimeout("tryToFinish();", 500);
1.65 + return;
1.66 + }
1.67 +
1.68 + // By definition, the image is decoded here. Give ourselves a pat on the back.
1.69 + ok(isFrameDecoded("testimage"), "image should be decoded");
1.70 +
1.71 + // Restore the decode-on-draw pref
1.72 + setImagePref(DECODEONDRAW_ENABLED_PREF, oldDODPref);
1.73 +
1.74 + // All done
1.75 + SimpleTest.finish();
1.76 +}
1.77 +
1.78 +// Set our onload handler, making sure we have focus
1.79 +window.onload = SimpleTest.waitForFocus(windowLoadHandler);
1.80 +
1.81 +</script>
1.82 +</pre>
1.83 +</body>
1.84 +</html>
