Bug 39924

Summary: Reducing page zoom causes incorrect component offset values
Product: WebKit Reporter: Andre-John Mas <andrejohn.mas>
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: RESOLVED CONFIGURATION CHANGED    
Severity: Normal CC: ahmad.saleem792, eae, leviw, mmacleod, rniwa, simon.fraser, zalan
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: Mac (Intel)   
OS: OS X 10.6   
Bug Depends on: 60318    
Bug Blocks:    
Attachments:
Description Flags
Test case illustrating the bug none

Andre-John Mas
Reported 2010-05-29 11:40:22 PDT
Created attachment 57414 [details] Test case illustrating the bug I have run into an issue where zooming out of a page ( cmd - ) causes the element offset to become incorrect. This can have an impact on dynamic HTML which is not expecting this behaviour. Tests indicate this is a WebKit related issue, since both Safari and Chrome are impacted, while Opera and Firefox are not. Tested on MacOS X 10.6 only. I have attached a test case showing the issue: 1 - open the test case 2 - click on the button, in page, and observe displayed offset in console 3 - zoom out at least twice (more if possible) 4 - click on the button, in page, and observe displayed offset in console, compare to step 2
Attachments
Test case illustrating the bug (2.34 KB, text/html)
2010-05-29 11:40 PDT, Andre-John Mas 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Andre-John Mas
Comment 1 2010-06-01 17:04:54 PDT
Just for reference versions of browsers tested with: - Google Chrome (OS X) 5.0.375.55 - Webkit 4.0.5 (6531.22.7, r58136) - Firefox 3.6.4 - Opera 0.10
Andre-John Mas
Comment 2 2010-06-01 17:05:12 PDT
Oops, that should have been 10.10 for Opera
Emil A Eklund
Comment 3 2011-06-24 11:10:53 PDT
*** Bug 63333 has been marked as a duplicate of this bug. ***
Ahmad Saleem
Comment 4 2023-05-05 12:56:20 PDT
I am not able to reproduce this bug using steps from Comment 0 and also using the attached testcase on Safari 16.4 and it does not show different values (I zoomed in to extreme as well - more than once). It matches with Chrome Canary and keep it as: [Log] left: 300, top: 300 (attachment.cgi, line 27, x6) Can we mark this as "RESOLVED CONFIGURATION CHANGED".
Andre-John Mas
Comment 5 2023-05-05 13:14:36 PDT
I just tested using Safari on iOS 16.4.1 (a) and I can no longer reproduce the issue. I’ll close this.
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