Open Bug 724314 Opened 13 years ago Updated 2 years ago

Listbox loses items on rapid scrolling

Categories

(Core :: XUL, defect)

x86
All
defect

Tracking

()

People

(Reporter: aleth, Unassigned)

References

Details

Attachments

(1 file, 1 obsolete file)

588 bytes, application/vnd.mozilla.xul+xml
Details
Attached file Testcase (obsolete) —
In the testcase, add 100 listitems (or more) via the button provided, then scroll rapidly up and down with the mouse using the scrollbar. Listitems will disappear from the beginning or end of the list. 

They are no longer displayed, and it appears from DOM Inspector that their Position and Dimensions is set to 0. Sometimes they may come back, e.g. on further scrolling via the keyboard, but not always.
Attachment #594495 - Attachment mime type: application/octet-stream → text/html
Attached file Testcase
Attachment #594495 - Attachment is obsolete: true
Comment on attachment 594497 [details]
Testcase

(Selecting mimetype xml didn't seem to work)
Attachment #594497 - Attachment mime type: application/octet-stream → text/html
Attachment #594497 - Attachment mime type: text/html → application/vnd.mozilla.xul+xml
I can reproduce the issues on Nightly13.0a1. And I can reproduce the issues on Firefox4-12.0a2 as well.
Status: UNCONFIRMED → NEW
Ever confirmed: true
Version: 12 Branch → Trunk
Blocks: Instantbird
OS: Linux → All
Severity: normal → S3
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