Closed
Bug 93766
Opened 23 years ago
Closed 23 years ago
No reflows caused when drawing HTML using JavaScript
Categories
(Core :: DOM: Core & HTML, defect)
Tracking
()
RESOLVED
WORKSFORME
People
(Reporter: neil, Assigned: jst)
References
Details
Attachments
(1 file)
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448.21 KB,
text/html
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Details |
If I run this simple HTML in Mozilla it locks it up for a very long time (Long
enough to disconnect me from chatzilla due to a ping timeout). In IE it only
locks it up for a couple seconds.
Shouldn't this cause a couple reflows? or at least come up for air?
<html>
<head>
</head>
<body>
<script language="Javascript">
for ( var y = 0; y < 4; y++ ) {
for ( var n = 0; n < 256; n++ ) {
document.write('<img src="7.jpg">');
}
}
</script>
</body>
</html>
If I do exactly the same thing, but with 1024 <img> tags in normal HTML, I see
it right away.
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Comment 1•23 years ago
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Over to DOM0
Assignee: rogerl → jst
Status: UNCONFIRMED → NEW
Component: Javascript Engine → DOM Level 0
Ever confirmed: true
QA Contact: pschwartau → desale
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Reporter | |
Comment 2•23 years ago
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I'm making this bug block 21762 because it appears to be a dhtml issue.
Blocks: 21762
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Comment 3•23 years ago
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Is this still an issue? It takes me about 2 seconds to run this testcase on a decently large (800x730) jpeg and about the same for a similarly sized gif. I tried bumping up the number of iteration by a factor of 4 and profiling. I'll attach the profile, but nothing seems out of place there. The key issue here, I suspect, is that the UI runs on the same thread as scripts in webpages...
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Comment 4•23 years ago
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Assignee | |
Comment 5•23 years ago
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Seems pretty darn fast now, marking WORKSFORME. Please reopen if this is still an issue.
Status: NEW → RESOLVED
Closed: 23 years ago
Resolution: --- → WORKSFORME
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Description
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