196754 2019-04-09 17:15:56 -0700 Hit-testing is wrong when you hit a position:-webkit-sticky inside a non-stacking overflow 2019-05-16 15:25:15 -0700 1 1 1 Unclassified WebKit Scrolling WebKit Nightly Build Unspecified Unspecified RESOLVED CONFIGURATION CHANGED InRadar P2 Normal --- 1 simon.fraser webkit-unassigned koivisto simon.fraser webkit-bug-importer oldest_to_newest 1525820 0 367088 simon.fraser 2019-04-09 17:15:56 -0700 Created attachment 367088 Testcase You can't scroll when you hit the blue box in the attached test case 1525821 1 simon.fraser 2019-04-09 17:16:17 -0700 Needs similar treatment as we do for positioned nodes. 1525822 2 simon.fraser 2019-04-09 17:16:34 -0700 May need the same thing for position:fixed? 1525823 3 webkit-bug-importer 2019-04-09 17:16:48 -0700 <rdar://problem/49757271> 1525824 4 webkit-bug-importer 2019-04-09 17:16:51 -0700 <rdar://problem/49757268> 1525892 5 koivisto 2019-04-10 00:39:12 -0700 Is this another case of missing positioned nodes in scrolling tree? 1525965 6 simon.fraser 2019-04-10 09:22:30 -0700 No, the sticky node already acts as the 'positioning' node, so we need to have some similar logic for sticky that we have for positioned nodes. 1534983 7 koivisto 2019-05-10 06:38:11 -0700 Scrolling via the blue box works fine, it just flickers horribly. 1536931 8 koivisto 2019-05-16 15:25:15 -0700 Flickering is covered elsewhere so I think this can be closed. 367088 2019-04-09 17:15:56 -0700 2019-04-09 17:15:56 -0700 Testcase sticky-in-non-stacking-context-overflow.html text/html 1790 simon.fraser PCFET0NUWVBFIGh0bWw+IDwhLS0gd2Via2l0LXRlc3QtcnVubmVyIFsgdXNlRmxleGlibGVWaWV3 cG9ydD10cnVlIGludGVybmFsOkFzeW5jT3ZlcmZsb3dTY3JvbGxpbmdFbmFibGVkPXRydWUgXSAt LT4KPGh0bWw+CjxoZWFkPgogICAgPG1ldGEgbmFtZT0idmlld3BvcnQiIGNvbnRlbnQ9ImluaXRp YWwtc2NhbGU9MS4wIj4KICAgIDxzdHlsZT4KICAgICAgICAjc2Nyb2xsZXIgewogICAgICAgICAg ICBtYXJnaW46IDEwcHg7CiAgICAgICAgICAgIGhlaWdodDogMzAwcHg7CiAgICAgICAgICAgIHdp ZHRoOiAzMDBweDsKICAgICAgICAgICAgYm9yZGVyOiAxcHggc29saWQgYmxhY2s7CiAgICAgICAg ICAgIG92ZXJmbG93OiBzY3JvbGw7CiAgICAgICAgfQogICAgICAgIAogICAgICAgIC5jb250YWlu ZXIgewogICAgICAgICAgICBwb3NpdGlvbjogcmVsYXRpdmU7CiAgICAgICAgICAgIGhlaWdodDog NTAwcHg7CiAgICAgICAgICAgIGJvcmRlcjogMTJweCBzb2xpZCBncmF5OwogICAgICAgIH0KICAg ICAgICAKICAgICAgICAuc3RpY2t5IHsKICAgICAgICAgICAgcG9zaXRpb246IC13ZWJraXQtc3Rp Y2t5OwogICAgICAgICAgICB0b3A6IDA7CiAgICAgICAgICAgIHdpZHRoOiAyMDBweDsKICAgICAg ICAgICAgaGVpZ2h0OiAyMDBweDsKICAgICAgICAgICAgYmFja2dyb3VuZC1jb2xvcjogYmx1ZTsK ICAgICAgICB9CiAgICA8L3N0eWxlPgogICAgPHNjcmlwdD4KICAgICAgICBpZiAod2luZG93LnRl c3RSdW5uZXIpCiAgICAgICAgICAgIHRlc3RSdW5uZXIud2FpdFVudGlsRG9uZSgpOwoKICAgICAg ICBmdW5jdGlvbiBnZXRVbnN0YWJsZVNjcm9sbFNjcmlwdCh4LCB5LCBzY3JvbGxYLCBzY3JvbGxZ KQogICAgICAgIHsKICAgICAgICAgICAgcmV0dXJuIGAoZnVuY3Rpb24oKSB7CiAgICAgICAgICAg ICAgICB1aUNvbnRyb2xsZXIuc2Nyb2xsVXBkYXRlc0Rpc2FibGVkID0gdHJ1ZTsKICAgICAgICAg ICAgICAgIHVpQ29udHJvbGxlci5pbW1lZGlhdGVTY3JvbGxFbGVtZW50QXRDb250ZW50UG9pbnRU b09mZnNldCgke3h9LCAke3l9LCAke3Njcm9sbFh9LCAke3Njcm9sbFl9KTsKICAgICAgICAgICAg ICAgIHVpQ29udHJvbGxlci5kb0FmdGVyUHJlc2VudGF0aW9uVXBkYXRlKGZ1bmN0aW9uKCkgewog ICAgICAgICAgICAgICAgICAgIHVpQ29udHJvbGxlci51aVNjcmlwdENvbXBsZXRlKCk7CiAgICAg ICAgICAgICAgICB9KTsKICAgICAgICAgICAgfSkoKTtgOwogICAgICAgIH0KCiAgICAgICAgZnVu Y3Rpb24gZG9UZXN0KCkKICAgICAgICB7CiAgICAgICAgICAgIGlmICghd2luZG93LnRlc3RSdW5u ZXIgfHwgIXRlc3RSdW5uZXIucnVuVUlTY3JpcHQpCiAgICAgICAgICAgICAgICByZXR1cm4KCiAg ICAgICAgICAgIHRlc3RSdW5uZXIucnVuVUlTY3JpcHQoZ2V0VW5zdGFibGVTY3JvbGxTY3JpcHQo MjUwLCA1MCwgMCwgMTAwKSwgKCkgPT4gewogICAgICAgICAgICAgICAgLy8gdGVzdFJ1bm5lci5u b3RpZnlEb25lKCk7CiAgICAgICAgICAgIH0pOwogICAgICAgIH0KICAgICAgICAKICAgICAgICB3 aW5kb3cuYWRkRXZlbnRMaXN0ZW5lcignbG9hZCcsIGRvVGVzdCwgZmFsc2UpOwogICAgPC9zY3Jp cHQ+CjwvaGVhZD4KPGJvZHk+CiAgICA8ZGl2IGlkPSJzY3JvbGxlciI+CiAgICAgICAgPGRpdiBj bGFzcz0iY29udGFpbmVyIj4KICAgICAgICAgICAgPGRpdiBjbGFzcz0ic3RpY2t5Ij48L2Rpdj4K ICAgICAgICA8L2Rpdj4KICAgICAgICA8ZGl2IGNsYXNzPSJjb250YWluZXIiPjwvZGl2PgogICAg PC9kaXY+CjwvYm9keT4KPC9odG1sPgo=