Closed
Bug 28291
Opened 25 years ago
Closed 25 years ago
[gfx scrollbar] Crash in GfxScrollFrame when style rules indicate display:none
Categories
(Core :: XUL, defect, P3)
Core
XUL
Tracking
()
People
(Reporter: jst, Assigned: hyatt)
Details
(Keywords: crash)
Attachments
(4 files)
Screenshot
Loading an XML document with a stylesheet containing
* {
display: block;
padding: 20px;
}
makes the elements in the GFX scrollbars in mozilla get a padding of 20px!
I'll attach testcases...
I also noticed that specifying
* {
display: none;
}
makes mozilla crash in the GFX scrollbar code since it assumes that some frames
exist even if they don't.
Summary: Document stylesheet interferes with XUL/XBL → Document stylesheet interferes with XUL/XBL style
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Comment 5•25 years ago
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This is the correct behavior: if you specify a style in a user stylesheet then
that overrides the styles specified by the user agent. The global style rule is
a very powerful one...
There is a valid bug here, and that is the crash in GfxScrollFrame when the
following style rule is set in an HTML or XML page:
* {
display : none;
}
The GfxScrollFrame method SetInitialChildList should check the scrollbar frames
for NULL before dereferencing them. I'm changing this bug into a crash bug in
GfxScrollFrame and sending to eric vaughan.
Assignee: pierre → evaughan
Component: Style System → XP Toolkit/Widgets
Summary: Document stylesheet interferes with XUL/XBL style → [gfx scrollbar] Crash in GfxScrollFrame when style rules indicate display:none
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Comment 6•25 years ago
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Comment 7•25 years ago
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The crash in GfxScrollFrame is definitely not the *only* bug here, regardless of
the style in the *document* that is loaded the GFX scrollbars should look the
same! The scrollbars are not part of the HTML document (well in a way they are
but...)! The only stylesheets that should affect the scrollbars is the chrome
stylesheets, *not* the *document* stylesheets!
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Comment 8•25 years ago
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hyatt,
passing to you because scrollbars should not be styled by the * selector.
Assignee: evaughan → hyatt
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Assignee | |
Comment 9•25 years ago
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*** This bug has been marked as a duplicate of 21890 ***
Status: NEW → RESOLVED
Closed: 25 years ago
Resolution: --- → DUPLICATE
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Description
•