39924 2010-05-29 11:40:22 -0700 Reducing page zoom causes incorrect component offset values 2023-05-05 13:15:08 -0700 1 1 1 Unclassified WebKit Layout and Rendering 528+ (Nightly build) Mac (Intel) OS X 10.6 RESOLVED CONFIGURATION CHANGED P2 Normal --- 60318 1 andrejohn.mas webkit-unassigned ahmad.saleem792 eae leviw mmacleod rniwa simon.fraser zalan oldest_to_newest 232133 0 57414 andrejohn.mas 2010-05-29 11:40:22 -0700 Created attachment 57414 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 232993 1 andrejohn.mas 2010-06-01 17:04:54 -0700 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 232994 2 andrejohn.mas 2010-06-01 17:05:12 -0700 Oops, that should have been 10.10 for Opera 426994 3 eae 2011-06-24 11:10:53 -0700 *** Bug 63333 has been marked as a duplicate of this bug. *** 1953253 4 ahmad.saleem792 2023-05-05 12:56:20 -0700 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". 1953273 5 andrejohn.mas 2023-05-05 13:14:36 -0700 I just tested using Safari on iOS 16.4.1 (a) and I can no longer reproduce the issue. I’ll close this. 57414 2010-05-29 11:40:22 -0700 2010-05-29 11:40:22 -0700 Test case illustrating the bug test-case.html text/html 2393 andrejohn.mas PCFET0NUWVBFIGh0bWwgUFVCTElDICItLy9XM0MvL0RURCBYSFRNTCAxLjAgU3RyaWN0Ly9FTiIg Imh0dHA6Ly93d3cudzMub3JnL1RSL3hodG1sMS9EVEQveGh0bWwxLXN0cmljdC5kdGQiPgo8aHRt bD4KCjxoZWFkPgogICA8dGl0bGU+VGVzdCBjYXNlPC90aXRsZT4KICAgCiAgIDxzdHlsZSB0eXBl PSJ0ZXh0L2NzcyI+CiAgIAogICAgICAjb3V0ZXIgewogICAgICAgICAgd2lkdGg6IDQwMHB4Owog ICAgICAgICAgaGVpZ2h0OiA0MDBweDsKICAgICAgfQogICAgICAKICAgICAgI291dGVyIGRpdiB7 CiAgICAgICAgICBwb3NpdGlvbjogYWJzb2x1dGU7CiAgICAgICAgICB3aWR0aDogMTAwcHg7CiAg ICAgICAgICBoZWlnaHQ6IDEwMHB4OwogICAgICAgICAgYm9yZGVyOiBzb2xpZCAxcHggYmxhY2s7 CiAgICAgIH0KICAgICAgCiAgIDwvc3R5bGU+CiAgIAogICA8c2NyaXB0IHR5cGU9InRleHQvamF2 YXNjcmlwdCI+CiAgICAgIGZ1bmN0aW9uIHNob3dQb3NpdGlvbiggaWQpIHsKICAgICAgICAgIHZh ciBlbGVtID0gZG9jdW1lbnQuZ2V0RWxlbWVudEJ5SWQoaWQpOwogICAgICAgICAgdmFyIHBvcyA9 IGZpbmRQb3MoZWxlbSkKICAgICAgICAgIGNvbnNvbGUubG9nKCJsZWZ0OiAiICsgcG9zWzBdICsg IiwgdG9wOiAiICsgcG9zWzFdKTsKICAgICAgfQogICAgICAKICAgICAgLy8gcmVmOiBodHRwOi8v d3d3LnF1aXJrc21vZGUub3JnL2pzL2ZpbmRwb3MuaHRtbAogICAgICBmdW5jdGlvbiBmaW5kUG9z KG9iaikgewogICAgICAgICB2YXIgY3VybGVmdCA9IGN1cnRvcCA9IDA7CiAgICAgICAgIGlmIChv Ymoub2Zmc2V0UGFyZW50KSB7CiAgICAgICAgICAgICBkbyB7CgkJCSAgICBjdXJsZWZ0ICs9IG9i ai5vZmZzZXRMZWZ0OwoJCQkgICAgY3VydG9wICs9IG9iai5vZmZzZXRUb3A7CgkJCSB9IHdoaWxl IChvYmogPSBvYmoub2Zmc2V0UGFyZW50KTsKICAgICAgICAgfQogICAgICAgICByZXR1cm4gW2N1 cmxlZnQsY3VydG9wXTsKICAgICAgfQogCiAgIAogICA8L3NjcmlwdD4KICAgCjwvaGVhZD4KCjxi b2R5PgogICA8Zm9ybT4KICAgICAgIE91dHB1dCBpcyBpbiBjb25zb2xlPGJyLz4KICAgICAgIFRp bGUgSUQ6IDxpbnB1dCB0eXBlPSJ0ZXh0IiB2YWx1ZT0idGlsZS0xMSIgaWQ9InRpbGVJZElucHV0 Ii8+CiAgICAgICA8YnV0dG9uIHR5cGU9ImJ1dHRvbiIgb25jbGljaz0ic2hvd1Bvc2l0aW9uKCBk b2N1bWVudC5nZXRFbGVtZW50QnlJZCgndGlsZUlkSW5wdXQnKS52YWx1ZSApIj5TaG93IHRpbGUg MTEgcG9zaXRpb248L2J1dHRvbj4KCiAgIDwvZm9ybT4KCiAgIDxkaXYgaWQ9Im91dGVyIj4KICAg ICAgPGRpdiBpZD0idGlsZS0xIiBzdHlsZT0ibGVmdDogMTAwcHg7IHRvcDogMTAwcHgiPjE8L2Rp dj4KICAgICAgPGRpdiBpZD0idGlsZS0yIiBzdHlsZT0ibGVmdDogMjAwcHg7IHRvcDogMTAwcHgi PjI8L2Rpdj4KICAgICAgPGRpdiBpZD0idGlsZS0zIiBzdHlsZT0ibGVmdDogMzAwcHg7IHRvcDog MTAwcHgiPjM8L2Rpdj4KICAgICAgPGRpdiBpZD0idGlsZS00IiBzdHlsZT0ibGVmdDogNDAwcHg7 IHRvcDogMTAwcHgiPjQ8L2Rpdj4KICAgICAgCiAgICAgIDxkaXYgaWQ9InRpbGUtNSIgc3R5bGU9 ImxlZnQ6IDEwMHB4OyB0b3A6IDIwMHB4Ij41PC9kaXY+CiAgICAgIDxkaXYgaWQ9InRpbGUtNiIg c3R5bGU9ImxlZnQ6IDIwMHB4OyB0b3A6IDIwMHB4Ij42PC9kaXY+CiAgICAgIDxkaXYgaWQ9InRp bGUtNyIgc3R5bGU9ImxlZnQ6IDMwMHB4OyB0b3A6IDIwMHB4Ij43PC9kaXY+CiAgICAgIDxkaXYg aWQ9InRpbGUtOCIgc3R5bGU9ImxlZnQ6IDQwMHB4OyB0b3A6IDIwMHB4Ij44PC9kaXY+ICAgICAg CiAgICAgIAogICAgICA8ZGl2IGlkPSJ0aWxlLTkiICBzdHlsZT0ibGVmdDogMTAwcHg7IHRvcDog MzAwcHgiPjk8L2Rpdj4KICAgICAgPGRpdiBpZD0idGlsZS0xMCIgc3R5bGU9ImxlZnQ6IDIwMHB4 OyB0b3A6IDMwMHB4Ij4xMDwvZGl2PgogICAgICA8ZGl2IGlkPSJ0aWxlLTExIiBzdHlsZT0ibGVm dDogMzAwcHg7IHRvcDogMzAwcHgiPjExPC9kaXY+CiAgICAgIDxkaXYgaWQ9InRpbGUtMTIiIHN0 eWxlPSJsZWZ0OiA0MDBweDsgdG9wOiAzMDBweCI+MTI8L2Rpdj4gCiAgICAgIAogICAgICA8ZGl2 IGlkPSJ0aWxlLTEzIiBzdHlsZT0ibGVmdDogMTAwcHg7IHRvcDogNDAwcHgiPjEzPC9kaXY+CiAg ICAgIDxkaXYgaWQ9InRpbGUtMTQiIHN0eWxlPSJsZWZ0OiAyMDBweDsgdG9wOiA0MDBweCI+MTQ8 L2Rpdj4KICAgICAgPGRpdiBpZD0idGlsZS0xNSIgc3R5bGU9ImxlZnQ6IDMwMHB4OyB0b3A6IDQw MHB4Ij4xNTwvZGl2PgogICAgICA8ZGl2IGlkPSJ0aWxlLTE2IiBzdHlsZT0ibGVmdDogNDAwcHg7 IHRvcDogNDAwcHgiPjE2PC9kaXY+IAogICAgICAKICAgPC9kaXY+Cgo8L2JvZHk+Cgo8L2h0bWw=