161612 2016-09-05 13:37:28 -0700 Programmatic scrolling on a scrollable body can leave parts of the page unviewable 2018-09-05 11:09:42 -0700 1 1 1 Unclassified WebKit DOM WebKit Nightly Build Unspecified Unspecified NEW InRadar P2 Normal --- 182230 5991 1 simon.fraser webkit-unassigned cdumez fred.wang rbuis simon.fraser webkit-bug-importer oldest_to_newest 1226508 0 287981 simon.fraser 2016-09-05 13:37:28 -0700 Created attachment 287981 Testcase We're confused about programmatic scrolling on the body, when the body is independently scrollable (i.e. has overflow:scroll when the <html> has overflow:hidden). In this case programmatic scrolling on the body can scroll the document, but the user can't scroll it back. 1394511 1 fred.wang 2018-01-30 05:56:17 -0800 (In reply to Simon Fraser (smfr) from comment #0) > Created attachment 287981 [details] > Testcase > > We're confused about programmatic scrolling on the body, when the body is > independently scrollable (i.e. has overflow:scroll when the <html> has > overflow:hidden). > > In this case programmatic scrolling on the body can scroll the document, but > the user can't scroll it back. The testcase does not work because the call to description() is not commented out. It will be worth going back to this when bug 182230 is fixed, as the current patch seems to give better result. 1456681 2 348909 fred.wang 2018-09-05 06:55:04 -0700 Created attachment 348909 Testcase Reduced version of the previous testcase. 1456793 3 webkit-bug-importer 2018-09-05 11:09:42 -0700 <rdar://problem/44145638> 287981 2016-09-05 13:37:28 -0700 2016-09-05 13:37:28 -0700 Testcase scrolling-funtions-on-body-scrollable-body.html text/html 2313 simon.fraser PGh0bWw+DQogICAgPGhlYWQ+DQogICAgICAgIDxzdHlsZT4NCiAgICAgICAgICAgIGh0bWwgew0K ICAgICAgICAgICAgICAgIGJhY2tncm91bmQtaW1hZ2U6IHJlcGVhdGluZy1saW5lYXItZ3JhZGll bnQod2hpdGUsIHNpbHZlciAxMDBweCwgd2hpdGUgMTAwcHgpOw0KICAgICAgICAgICAgICAgIGhl aWdodDogMjAwMHB4Ow0KICAgICAgICAgICAgICAgIG92ZXJmbG93OiBoaWRkZW47DQogICAgICAg ICAgICB9DQogICAgICAgICAgICBib2R5IHsNCiAgICAgICAgICAgICAgICBvdmVyZmxvdy15OiBz Y3JvbGw7DQogICAgICAgICAgICAgICAgaGVpZ2h0OiA1MDBweDsNCiAgICAgICAgICAgICAgICBi b3JkZXI6IDJweCBzb2xpZCBncmVlbjsNCiAgICAgICAgICAgICAgICBwYWRkaW5nOiA1cHg7DQog ICAgICAgICAgICB9DQogICAgICAgICAgICBkaXYgew0KICAgICAgICAgICAgICAgIHdpZHRoOiA5 OTk5cHg7DQogICAgICAgICAgICAgICAgaGVpZ2h0OiA5OTk5cHg7DQogICAgICAgICAgICB9DQog ICAgICAgIDwvc3R5bGU+DQogICAgICAgIDxzY3JpcHQgc3JjPSIuLi8uLi8uLi9yZXNvdXJjZXMv anMtdGVzdC1wcmUuanMiPjwvc2NyaXB0Pg0KICAgICAgICA8c2NyaXB0Pg0KICAgICAgICAgICAg dmFyIHNjcm9sbGVyOw0KICAgICAgICAgICAgZnVuY3Rpb24gcnVuVGVzdCgpIHsNCiAgICAgICAg ICAgICAgICBkZXNjcmlwdGlvbignVGVzdHMgc2Nyb2xsVG8vQnkoeCx5KSBhbmQgc2Nyb2xsVG8v Qnkoc2Nyb2xsT3B0aW9ucykgb24gYW4gaW5kZXBlbmRlbnRseS1zY3JvbGxhYmxlIGJvZHknKTsN CiAgICAgICAgICAgICAgICANCiAgICAgICAgICAgICAgICBzY3JvbGxlciA9IGRvY3VtZW50LmJv ZHk7DQogICAgICAgICAgICAgICAgc2V0VGltZW91dChmdW5jdGlvbigpIHsNCiAgICAgICAgICAg ICAgICAgICAgc2Nyb2xsZXIuc2Nyb2xsVG9wID0gNTAwOw0KICAgICAgICAgICAgICAgICAgICBz aG91bGRCZSgic2Nyb2xsZXIuc2Nyb2xsVG9wIiwgIjUwMCIpOw0KDQogICAgICAgICAgICAgICAg ICAgIHNjcm9sbGVyLnNjcm9sbFRvKDIwLCA1MDApOw0KICAgICAgICAgICAgICAgICAgICAvLyBz aG91bGRCZSgic2Nyb2xsZXIuc2Nyb2xsTGVmdCIsICIyMCIpOw0KICAgICAgICAgICAgICAgICAg ICAvLyBzaG91bGRCZSgic2Nyb2xsZXIuc2Nyb2xsVG9wIiwgIjUwMCIpOw0KICAgICAgICAgICAg ICAgICAgICAvLyBzaG91bGRCZSgid2luZG93LnNjcm9sbFgiLCAiMjAiKTsNCiAgICAgICAgICAg ICAgICAgICAgLy8gc2hvdWxkQmUoIndpbmRvdy5zY3JvbGxZIiwgIjUwMCIpOw0KICAgICAgICAg ICAgICAgICAgICAvLyANCiAgICAgICAgICAgICAgICAgICAgLy8gc2Nyb2xsZXIuc2Nyb2xsQnko NTAsIDYwKTsNCiAgICAgICAgICAgICAgICAgICAgLy8gc2hvdWxkQmUoInNjcm9sbGVyLnNjcm9s bExlZnQiLCAiNzAiKTsNCiAgICAgICAgICAgICAgICAgICAgLy8gc2hvdWxkQmUoInNjcm9sbGVy LnNjcm9sbFRvcCIsICI1NjAiKTsNCiAgICAgICAgICAgICAgICAgICAgLy8gc2hvdWxkQmUoIndp bmRvdy5zY3JvbGxYIiwgIjcwIik7DQogICAgICAgICAgICAgICAgICAgIC8vIHNob3VsZEJlKCJ3 aW5kb3cuc2Nyb2xsWSIsICI1NjAiKTsNCiAgICAgICAgICAgICAgICAgICAgLy8gDQogICAgICAg ICAgICAgICAgICAgIC8vIHNjcm9sbGVyLnNjcm9sbFRvKHsgJ2xlZnQnIDogMTAwLCAndG9wJyA6 IDQwMCB9KTsNCiAgICAgICAgICAgICAgICAgICAgLy8gc2hvdWxkQmUoInNjcm9sbGVyLnNjcm9s bExlZnQiLCAiMTAwIik7DQogICAgICAgICAgICAgICAgICAgIC8vIHNob3VsZEJlKCJzY3JvbGxl ci5zY3JvbGxUb3AiLCAiNDAwIik7DQogICAgICAgICAgICAgICAgICAgIC8vIHNob3VsZEJlKCJ3 aW5kb3cuc2Nyb2xsWCIsICIxMDAiKTsNCiAgICAgICAgICAgICAgICAgICAgLy8gc2hvdWxkQmUo IndpbmRvdy5zY3JvbGxZIiwgIjQwMCIpOw0KDQogICAgICAgICAgICAgICAgICAgIHNjcm9sbGVy LnNjcm9sbFRvcCA9IDA7DQoNCiAgICAgICAgICAgICAgICAgICAgZmluaXNoSlNUZXN0KCk7DQog ICAgICAgICAgICAgICAgfSwgMCk7DQogICAgICAgICAgICB9DQogICAgICAgICAgICB2YXIganNU ZXN0SXNBc3luYyA9IHRydWU7DQogICAgICAgIDwvc2NyaXB0Pg0KICAgIDwvaGVhZD4NCiAgICA8 Ym9keSBvbmxvYWQ9InJ1blRlc3QoKSI+DQogICAgICAgIDxkaXY+DQogICAgICAgIDwvZGl2Pg0K ICAgICAgICA8c2NyaXB0IHNyYz0iLi4vLi4vLi4vcmVzb3VyY2VzL2pzLXRlc3QtcG9zdC5qcyI+ PC9zY3JpcHQ+DQogICAgPC9ib2R5Pg0KPC9odG1sPg0K 348909 2018-09-05 06:55:04 -0700 2018-09-05 06:55:04 -0700 Testcase scrolling-funtions-on-body-scrollable-body.html text/html 770 fred.wang PGh0bWw+CiAgPGhlYWQ+CiAgICA8c3R5bGU+CiAgICAgIGh0bWwgewogICAgICAgIGJhY2tncm91 bmQtaW1hZ2U6IHJlcGVhdGluZy1saW5lYXItZ3JhZGllbnQod2hpdGUsIHNpbHZlciAxMDBweCwg d2hpdGUgMTAwcHgpOwogICAgICAgIGhlaWdodDogMjAwMHB4OwogICAgICAgIG92ZXJmbG93OiBo aWRkZW47CiAgICAgIH0KICAgICAgYm9keSB7CiAgICAgICAgb3ZlcmZsb3cteTogc2Nyb2xsOwog ICAgICAgIGhlaWdodDogNTAwcHg7CiAgICAgICAgYm9yZGVyOiAycHggc29saWQgZ3JlZW47CiAg ICAgICAgcGFkZGluZzogNXB4OwogICAgICB9CiAgICAgIGRpdiB7CiAgICAgICAgd2lkdGg6IDk5 OTlweDsKICAgICAgICBoZWlnaHQ6IDk5OTlweDsKICAgICAgfQogICAgPC9zdHlsZT4KICAgIDxz Y3JpcHQ+CiAgICAgIGZ1bmN0aW9uIHJ1blRlc3QoKSB7CiAgICAgICAgc2Nyb2xsZXIgPSBkb2N1 bWVudC5ib2R5OwogICAgICAgIHNldFRpbWVvdXQoZnVuY3Rpb24oKSB7CiAgICAgICAgICBzY3Jv bGxlci5zY3JvbGxUb3AgPSA1MDA7CiAgICAgICAgICBzaG91bGRCZSgic2Nyb2xsZXIuc2Nyb2xs VG9wIiwgIjUwMCIpOwogICAgICAgICAgc2Nyb2xsZXIuc2Nyb2xsVG8oMjAsIDUwMCk7CiAgICAg ICAgICBzY3JvbGxlci5zY3JvbGxUb3AgPSAwOwogICAgICAgIH0sIDApOwogICAgICB9CiAgICA8 L3NjcmlwdD4KICA8L2hlYWQ+CiAgPGJvZHkgb25sb2FkPSJydW5UZXN0KCkiPgogICAgPGRpdj4K ICAgIDwvZGl2PgogIDwvYm9keT4KPC9odG1sPgo=