Bug 12716

Summary:

Assertion failure involving printing and display:run-in and dt/dl elements; overlapping text on Release build

Product:

WebKit

Reporter:

John Sullivan <sullivan>

Component:

Printing

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED CONFIGURATION CHANGED

Severity:

Normal

CC:

mitz

Priority:

Keywords:

InRadar

Version:

420+

Hardware:

Mac

OS:

OS X 10.4

Attachments:

Description	Flags
Test case	none
Screenshot of overlapping text	none
Reduction (does not require printing)	none

John Sullivan

Reported 2007-02-09 14:47:50 PST

This is in Radar as <rdar://problem/4988325> To reproduce: 1. Load the attached example page, which is a reduced version of the one in radar 4960095/bugzilla 12449 2. Command-P to bring up Print dialog 3. Click Preview button Usually the assertion failure happens here. But sometimes, I have to repeat steps 2 and 3. I've never had to repeat them more than once to hit the assertion failure, in many attempts, so I'm marking this repro always. On a release build the printed page shows overlapping, doubly-drawn text, and the web page redraws to show that same bad appearance. See the attached screenshot. There don't seem to be any other symptoms on a release build -- reloading takes the page back to normal, and subsequent pages aren't messed up.

Attachments
Test case (270 bytes, text/html) 2007-02-09 14:48 PST, John Sullivan	no flags	Details
Screenshot of overlapping text (3.55 KB, image/png) 2007-02-09 14:50 PST, John Sullivan	no flags	Details
Reduction (does not require printing) (186 bytes, text/html) 2007-02-09 16:04 PST, mitz	no flags	Details
View All Add attachment proposed patch, testcase, etc.

John Sullivan

Comment 1 2007-02-09 14:48:50 PST

Created attachment 13094 [details] Test case Test case used to demonstrate the problem.

John Sullivan

Comment 2 2007-02-09 14:50:04 PST

Created attachment 13095 [details] Screenshot of overlapping text Screenshot that shows the results after printing, on a Release build (where the assertion doesn't fire)

mitz

Comment 3 2007-02-09 16:04:28 PST

Created attachment 13099 [details] Reduction (does not require printing) The bug is that a style recalc resets the isInline() flag of the run-in to false.

mitz

Comment 4 2008-02-28 13:19:41 PST