63333 2011-06-24 10:51:34 -0700 CSS zoom property incorrectly affects offset 2011-06-24 11:24:30 -0700 1 1 1 Unclassified WebKit Layout and Rendering 528+ (Nightly build) Unspecified Unspecified RESOLVED DUPLICATE 39924 P2 Normal --- 0 mmacleod webkit-unassigned eae oldest_to_newest 426968 0 mmacleod 2011-06-24 10:51:34 -0700 When CSS zoom is applied to an element the element can return incorrect offset values as a results (even though it continues to display in the correct place), seemingly the code to fill in the offsets automatically assumes that the element itself has been affected by the zoom without actually checking to ensure this is the case. Steps to reproduce: 1) Open attached testcase "zoombug.html" 2) click through 3 alert messages observing the offsetLeft value that it displays 3) observe that in each case the actual position of the div has not changed 4) observe that only the content inside the div that is zoomed the page around the div and the div itself are not affected by the zoom 5) observe that in each case the offsetLeft value of the element does change despite the fact that it is clearly offset by the exact same amount it was previously 426990 1 98513 eae 2011-06-24 11:07:52 -0700 Created attachment 98513 test I assume you meant to upload a copy of the test. 426993 2 eae 2011-06-24 11:10:53 -0700 *** This bug has been marked as a duplicate of bug 39924 *** 427001 3 mmacleod 2011-06-24 11:18:43 -0700 Yes sorry, forgot to upload test thanks. Not entirely sure this is a duplicate of 39924 as in the case of 39924 the whole page is zoomed and the offsets of the elements do actually change visually. In this case the element does not move at all. 427006 4 eae 2011-06-24 11:24:30 -0700 No worries, we'll make sure to run your test case when fixing 39924. Thanks for the report and the reduced test! 98513 2011-06-24 11:07:52 -0700 2011-06-24 11:07:52 -0700 test zoombug.html text/html 848 eae PGh0bWw+CiAgICA8aGVhZD4KICAgICAgICA8c3R5bGU+CiAgICAgICAgICAgIGJvZHkKICAgICAg ICAgICAgewogICAgICAgICAgICBiYWNrZ3JvdW5kLWNvbG9yOmdyZWVuOwogICAgICAgICAgICB9 CiAgICAgICAgICAgIGRpdgogICAgICAgICAgICB7CiAgICAgICAgICAgICAgICBiYWNrZ3JvdW5k LWNvbG9yOmJsdWU7CiAgICAgICAgICAgICAgICBwb3NpdGlvbjphYnNvbHV0ZTsKICAgICAgICAg ICAgICAgIHRvcDoxMCU7CiAgICAgICAgICAgICAgICBsZWZ0OjEwJTsKICAgICAgICAgICAgICAg IHdpZHRoOjUwJTsKICAgICAgICAgICAgICAgIGhlaWdodDo1MCU7CiAgICAgICAgICAgIH0KICAg ICAgICA8L3N0eWxlPgogICAgICAgIDxzY3JpcHQ+CiAgICAgICAgICAgIGZ1bmN0aW9uIHRlc3Rv ZmZzZXRzKCkKICAgICAgICAgICAgewogICAgICAgICAgICAgICAgdmFyICBmb28gPSBkb2N1bWVu dC5nZXRFbGVtZW50c0J5VGFnTmFtZSgnZGl2JylbMF07CiAgICAgICAgICAgICAgICBmb28uc3R5 bGUuem9vbT0iNTAlIjsKICAgICAgICAgICAgICAgIGFsZXJ0KGZvby5vZmZzZXRMZWZ0KTsKICAg ICAgICAgICAgICAgIGZvby5zdHlsZS56b29tPSIxMDAlIjsKICAgICAgICAgICAgICAgIGFsZXJ0 KGZvby5vZmZzZXRMZWZ0KTsKICAgICAgICAgICAgICAgIGZvby5zdHlsZS56b29tPSIyMDAlIjsK ICAgICAgICAgICAgICAgIGFsZXJ0KGZvby5vZmZzZXRMZWZ0KTsKICAgICAgICAgICAgfQogICAg ICAgIDwvc2NyaXB0PgogICAgPC9oZWFkPgo8Ym9keSBvbmxvYWQ9InRlc3RvZmZzZXRzKCkiPgog ICAgPGRpdj4KICAgICAgICBmYXNzZgogICAgPC9kaXY+CjwvYm9keT4KPC9odG1sPgo=