198213 2019-05-23 21:56:44 -0700 Need to composite absolute inside stacking-context parent in scroller 2019-05-23 21:56:52 -0700 1 1 1 Unclassified WebKit Scrolling WebKit Nightly Build Unspecified Unspecified NEW P2 Normal --- 1 simon.fraser simon.fraser simon.fraser oldest_to_newest 1538934 0 370561 simon.fraser 2019-05-23 21:56:44 -0700 Created attachment 370561 Testcase Attachment shows a scrolling tree config we don't handle. 370561 2019-05-23 21:56:44 -0700 2019-05-23 21:56:44 -0700 Testcase ancestor-clipping-layer-stationary-in-moves.html text/html 2193 simon.fraser PCFET0NUWVBFIGh0bWw+IDwhLS0gd2Via2l0LXRlc3QtcnVubmVyIFsgdXNlRmxleGlibGVWaWV3 cG9ydD10cnVlIGludGVybmFsOkFzeW5jT3ZlcmZsb3dTY3JvbGxpbmdFbmFibGVkPXRydWUgXSAt LT4KPGh0bWw+CjxoZWFkPgogICAgPG1ldGEgbmFtZT0idmlld3BvcnQiIGNvbnRlbnQ9ImluaXRp YWwtc2NhbGU9MS4wIj4KICAgIDxzdHlsZT4KICAgICAgICAjc2Nyb2xsZXIgewogICAgICAgICAg ICBtYXJnaW46IDEwcHg7CiAgICAgICAgICAgIGhlaWdodDogMzAwcHg7CiAgICAgICAgICAgIHdp ZHRoOiAzMDBweDsKICAgICAgICAgICAgYm9yZGVyOiAxcHggc29saWQgYmxhY2s7CiAgICAgICAg ICAgIG92ZXJmbG93OiBzY3JvbGw7CiAgICAgICAgfQogICAgICAgIAogICAgICAgIC5ib3ggewog ICAgICAgICAgICB3aWR0aDogMjAwcHg7CiAgICAgICAgICAgIGhlaWdodDogMjAwcHg7CiAgICAg ICAgfQoKICAgICAgICAuY2xpcHBpbmcgewogICAgICAgICAgICBvcGFjaXR5OiAwLjk7CiAgICAg ICAgICAgIG92ZXJmbG93OiBoaWRkZW47CiAgICAgICAgICAgIGJvcmRlcjogMXB4IHNvbGlkIGJs YWNrOwogICAgICAgIH0KICAgICAgICAKICAgICAgICAuYWJzb2x1dGUgewogICAgICAgICAgICBw b3NpdGlvbjogYWJzb2x1dGU7CiAgICAgICAgICAgIHRvcDogMjBweDsKICAgICAgICAgICAgbGVm dDogMjBweDsKICAgICAgICAgICAgd2lkdGg6IDE2MHB4OwogICAgICAgICAgICBoZWlnaHQ6IDE2 MHB4OwogICAgICAgICAgICBiYWNrZ3JvdW5kLWNvbG9yOiBncmVlbjsKICAgICAgICB9CiAgICAg ICAgCiAgICAgICAgLnNoYXJpbmctcHJldmVudGVyIHsKICAgICAgICAgICAgaGVpZ2h0OiAxMHB4 OwogICAgICAgICAgICB3aWR0aDogMTBweDsKICAgICAgICAgICAgdHJhbnNmb3JtOiB0cmFuc2xh dGVaKDApOwogICAgICAgICAgICBiYWNrZ3JvdW5kLWNvbG9yOiBzaWx2ZXI7CiAgICAgICAgfQog ICAgICAgIAogICAgICAgIC5zcGFjZXIgewogICAgICAgICAgICBoZWlnaHQ6IDEwMHB4OwogICAg ICAgIH0KICAgIDwvc3R5bGU+CiAgICA8c2NyaXB0PgogICAgICAgIGlmICh3aW5kb3cudGVzdFJ1 bm5lcikKICAgICAgICAgICAgdGVzdFJ1bm5lci53YWl0VW50aWxEb25lKCk7CgogICAgICAgIGZ1 bmN0aW9uIGdldFVuc3RhYmxlU2Nyb2xsU2NyaXB0KHgsIHksIHNjcm9sbFgsIHNjcm9sbFkpCiAg ICAgICAgewogICAgICAgICAgICByZXR1cm4gYChmdW5jdGlvbigpIHsKICAgICAgICAgICAgICAg IHVpQ29udHJvbGxlci5zY3JvbGxVcGRhdGVzRGlzYWJsZWQgPSB0cnVlOwogICAgICAgICAgICAg ICAgdWlDb250cm9sbGVyLmltbWVkaWF0ZVNjcm9sbEVsZW1lbnRBdENvbnRlbnRQb2ludFRvT2Zm c2V0KCR7eH0sICR7eX0sICR7c2Nyb2xsWH0sICR7c2Nyb2xsWX0pOwogICAgICAgICAgICAgICAg dWlDb250cm9sbGVyLmRvQWZ0ZXJQcmVzZW50YXRpb25VcGRhdGUoZnVuY3Rpb24oKSB7CiAgICAg ICAgICAgICAgICAgICAgdWlDb250cm9sbGVyLnVpU2NyaXB0Q29tcGxldGUoKTsKICAgICAgICAg ICAgICAgIH0pOwogICAgICAgICAgICB9KSgpO2A7CiAgICAgICAgfQoKICAgICAgICBmdW5jdGlv biBkb1Rlc3QoKQogICAgICAgIHsKICAgICAgICAgICAgaWYgKCF0ZXN0UnVubmVyLnJ1blVJU2Ny aXB0KQogICAgICAgICAgICAgICAgcmV0dXJuCgogICAgICAgICAgICB0ZXN0UnVubmVyLnJ1blVJ U2NyaXB0KGdldFVuc3RhYmxlU2Nyb2xsU2NyaXB0KDUwLCA1MCwgMCwgMjAwKSwgKCkgPT4gewog ICAgICAgICAgICAgICAgdGVzdFJ1bm5lci5ub3RpZnlEb25lKCk7CiAgICAgICAgICAgIH0pOwog ICAgICAgIH0KICAgICAgICAKICAgICAgICB3aW5kb3cuYWRkRXZlbnRMaXN0ZW5lcignbG9hZCcs IGRvVGVzdCwgZmFsc2UpOwogICAgPC9zY3JpcHQ+CjwvaGVhZD4KPGJvZHk+CiAgICA8ZGl2IGlk PSJzY3JvbGxlciI+CiAgICAgICAgPGRpdiBjbGFzcz0ic3BhY2VyIj48L2Rpdj4KICAgICAgICA8 ZGl2IGNsYXNzPSJjbGlwcGluZyBib3giPgogICAgICAgICAgICA8ZGl2IGNsYXNzPSJzaGFyaW5n LXByZXZlbnRlciI+PC9kaXY+CiAgICAgICAgICAgIDxkaXYgY2xhc3M9ImFic29sdXRlIGJveCI+ PC9kaXY+CiAgICAgICAgPC9kaXY+CiAgICAgICAgPGRpdiBjbGFzcz0ic3BhY2VyIj48L2Rpdj4K ICAgIDwvZGl2Pgo8L2JvZHk+CjwvaHRtbD4K