199464 2019-07-03 15:00:30 -0700 Some layers inside overflow:scroll don't move back to correct positions when the contents are shrunk 2019-07-04 13:35:37 -0700 1 1 1 Unclassified WebKit Scrolling WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 simon.fraser simon.fraser koivisto sam simon.fraser webkit-bug-importer zalan oldest_to_newest 1550009 0 373416 simon.fraser 2019-07-03 15:00:30 -0700 Created attachment 373416 Testcase Attached test case shows a bug with async scrolling where a content resize fails to scroll the scroller back to the top. 1550010 1 webkit-bug-importer 2019-07-03 15:01:06 -0700 <rdar://problem/52613285> 1550181 2 simon.fraser 2019-07-03 21:19:51 -0700 It does scroll to the top, but it fails to reposition non-paint-order composited descendants. 1550182 3 373453 simon.fraser 2019-07-03 21:57:07 -0700 Created attachment 373453 Patch 1550187 4 373453 simon.fraser 2019-07-03 23:30:09 -0700 Comment on attachment 373453 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=373453&action=review > Source/WebCore/ChangeLog:3 > + Some layers inside overflow:scroll move back to correct positions when the contents are shrunk Title needs fixing. 1550263 5 simon.fraser 2019-07-04 13:35:37 -0700 https://trac.webkit.org/changeset/247142/webkit 373416 2019-07-03 15:00:30 -0700 2019-07-03 15:00:30 -0700 Testcase scrolling-proxy-with-no-scrolling-layer.html text/html 1331 simon.fraser PCFET0NUWVBFIGh0bWw+CjxodG1sPgo8aGVhZD4KICAgIDxzdHlsZT4KICAgICAgICAuc2Nyb2xs ZXIgewogICAgICAgICAgICBvdmVyZmxvdzogc2Nyb2xsOwogICAgICAgICAgICBoZWlnaHQ6IDUw MHB4OwogICAgICAgICAgICB3aWR0aDogNTAwcHg7CiAgICAgICAgICAgIGJvcmRlcjogMXB4IHNv bGlkIGJsYWNrOwogICAgICAgIH0KCiAgICAgICAgLndyYXBwZXIgewogICAgICAgICAgICBwb3Np dGlvbjogcmVsYXRpdmU7CiAgICAgICAgfQoKICAgICAgICAucmVzaXplLXRyaWdnZXJzIHsKICAg ICAgICAgICAgcG9zaXRpb246IGFic29sdXRlOwogICAgICAgICAgICB0b3A6IDEwcHg7CiAgICAg ICAgICAgIGxlZnQ6IDIwcHg7CiAgICAgICAgICAgIHdpZHRoOiAyMDBweDsKICAgICAgICAgICAg aGVpZ2h0OiAyMDBweDsKICAgICAgICAgICAgYmFja2dyb3VuZC1jb2xvcjogZ3JlZW47CiAgICAg ICAgICAgIHotaW5kZXg6IC0xOwogICAgICAgIH0KCiAgICAKICAgICAgICAuZXhwYW5kLXRyaWdn ZXIgewogICAgICAgICAgICBiYWNrZ3JvdW5kOiBzaWx2ZXI7CiAgICAgICAgICAgIG92ZXJmbG93 OiBhdXRvOwogICAgICAgICAgICBoZWlnaHQ6IDUwJTsKICAgICAgICAgICAgd2lkdGg6IDUwJTsK ICAgICAgICAgICAgb3BhY2l0eTogMDsKICAgICAgICB9CiAgICAKICAgICAgICAuY29udGVudCB7 CiAgICAgICAgICAgIGhlaWdodDogNzAwcHg7CiAgICAgICAgfQogICAgICAgIAogICAgICAgIC5j b250ZW50LmNoYW5nZWQgewogICAgICAgICAgICBoZWlnaHQ6IDMwMHB4OwogICAgICAgIH0KCiAg ICA8L3N0eWxlPgogICAgPHNjcmlwdD4KICAgICAgICAgICAgCiAgICAgICAgCiAgICAgICAgd2lu ZG93LmFkZEV2ZW50TGlzdGVuZXIoJ2xvYWQnLCAoKSA9PiB7CiAgICAgICAgICAgIHNldFRpbWVv dXQoKCkgPT4gewogICAgICAgICAgICAgICAgZG9jdW1lbnQucXVlcnlTZWxlY3RvcignLmNvbnRl bnQnKS5jbGFzc0xpc3QuYWRkKCdjaGFuZ2VkJyk7CiAgICAgICAgICAgIH0sIDIwMDApOwogICAg ICAgIH0sIGZhbHNlKTsKICAgIDwvc2NyaXB0Pgo8L2hlYWQ+Cjxib2R5PgoKICAgIDxzZWN0aW9u IGNsYXNzPSJzY3JvbGxlciI+CiAgICAgICAgPGRpdiBjbGFzcz0id3JhcHBlciI+CiAgICAgICAg ICAgIDxkaXYgY2xhc3M9ImNvbnRlbnQiPjwvZGl2PgogICAgICAgICAgICA8ZGl2IGNsYXNzPSJy ZXNpemUtdHJpZ2dlcnMiPgogICAgICAgICAgICAgICAgPGRpdiBjbGFzcz0iZXhwYW5kLXRyaWdn ZXIiPjwvZGl2PgogICAgICAgICAgICA8L2Rpdj4KICAgICAgICA8L2Rpdj4KICAgIDwvc2VjdGlv bj4KCjwvYm9keT4KPC9odG1sPgo= 373453 2019-07-03 21:57:07 -0700 2019-07-04 06:34:17 -0700 Patch bug-199464-20190703215706.patch text/plain 5467 simon.fraser U3VidmVyc2lvbiBSZXZpc2lvbjogMjQ3MTM0CmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViQ29yZS9D aGFuZ2VMb2cgYi9Tb3VyY2UvV2ViQ29yZS9DaGFuZ2VMb2cKaW5kZXggMDdjZDZhYzVjYmViNmJk M2JjN2YzMjg5YTI3MmQ2ZGZlZDI3ZGI0OS4uMjg4MGY3MWFiNzNhODhiNzBlMzYxNWEwMmZkMDM2 YmJkOTBmZWEyNSAxMDA2NDQKLS0tIGEvU291cmNlL1dlYkNvcmUvQ2hhbmdlTG9nCisrKyBiL1Nv dXJjZS9XZWJDb3JlL0NoYW5nZUxvZwpAQCAtMSwzICsxLDIwIEBACisyMDE5LTA3LTAzICBTaW1v biBGcmFzZXIgIDxzaW1vbi5mcmFzZXJAYXBwbGUuY29tPgorCisgICAgICAgIFNvbWUgbGF5ZXJz IGluc2lkZSBvdmVyZmxvdzpzY3JvbGwgbW92ZSBiYWNrIHRvIGNvcnJlY3QgcG9zaXRpb25zIHdo ZW4gdGhlIGNvbnRlbnRzIGFyZSBzaHJ1bmsKKyAgICAgICAgaHR0cHM6Ly9idWdzLndlYmtpdC5v cmcvc2hvd19idWcuY2dpP2lkPTE5OTQ2NAorCisgICAgICAgIFJldmlld2VkIGJ5IE5PQk9EWSAo T09QUyEpLgorICAgICAgICAKKyAgICAgICAgV2hlbiBhbiBvdmVyZmxvdyBzY3JvbGxlcidzIGNv bnRlbnQgc2hyaW5rIGFuZCBpdCBiZWNvbWVzIG5vbi1zY3JvbGxhYmxlLCB0aGUgJ2JvdW5kc09y aWdpbicgaW4KKyAgICAgICAgdGhlIGFuY2VzdG9yIGNsaXBwaW5nIHN0YWNrcyBvZiByZWxhdGVk IGxheWVycyB3b3VsZG4ndCBnZXQgcmVzZXQgdG8gemVybywgbGVhdmluZyBsYXllcnMgaW4KKyAg ICAgICAgdGhlIHdyb25nIHBsYWNlLCBzbyBhbHdheXMgc2V0IGJvdW5kc09yaWdpbiB0byB6ZXJv IG9uIHRoZSBjbGlwcGluZyBsYXllcnMgb2Ygbm9uLW92ZXJmbG93IGVudHJpZXMKKyAgICAgICAg aW4gdGhlIGFuY2VzdG9yIGNsaXBwaW5nIHN0YWNrLgorCisgICAgICAgIFRlc3Q6IGNvbXBvc2l0 aW5nL3Njcm9sbGluZy9hc3luYy1vdmVyZmxvdy1zY3JvbGxpbmcvYmVjb21lLW5vbi1zY3JvbGxh YmxlLXdpdGgtY2hpbGQuaHRtbAorCisgICAgICAgICogcmVuZGVyaW5nL1JlbmRlckxheWVyQmFj a2luZy5jcHA6CisgICAgICAgIChXZWJDb3JlOjpSZW5kZXJMYXllckJhY2tpbmc6OnVwZGF0ZUdl b21ldHJ5KToKKwogMjAxOS0wNy0wMyAgRXJpYyBDYXJsc29uICA8ZXJpYy5jYXJsc29uQGFwcGxl LmNvbT4KIAogICAgICAgICBbTVNFXSBBZGQgbW9yZSBkZWJ1ZyBhbmQgZXJyb3IgbG9nZ2luZwpk aWZmIC0tZ2l0IGEvU291cmNlL1dlYkNvcmUvcmVuZGVyaW5nL1JlbmRlckxheWVyQmFja2luZy5j cHAgYi9Tb3VyY2UvV2ViQ29yZS9yZW5kZXJpbmcvUmVuZGVyTGF5ZXJCYWNraW5nLmNwcAppbmRl eCBjMDA2OTZlYzdkODA2NDk2MzU1NjhhMDRjYzg4MTFhMDNiMjk3M2JlLi4xYjdmNGJiM2FkMTc5 OWMwNDA5OTE5NmE2MDhkYjZmZGIzYzg2ZGU0IDEwMDY0NAotLS0gYS9Tb3VyY2UvV2ViQ29yZS9y ZW5kZXJpbmcvUmVuZGVyTGF5ZXJCYWNraW5nLmNwcAorKysgYi9Tb3VyY2UvV2ViQ29yZS9yZW5k ZXJpbmcvUmVuZGVyTGF5ZXJCYWNraW5nLmNwcApAQCAtMTEwOSw3ICsxMTA5LDggQEAgdm9pZCBS ZW5kZXJMYXllckJhY2tpbmc6OnVwZGF0ZUdlb21ldHJ5KCkKIAogICAgICAgICAgICAgICAgIGVu dHJ5LmNsaXBwaW5nTGF5ZXItPnNldEJvdW5kc09yaWdpbihzY3JvbGxPZmZzZXQpOwogICAgICAg ICAgICAgICAgIGxhc3RDbGlwTGF5ZXJSZWN0Lm1vdmVCeSgtc2Nyb2xsT2Zmc2V0KTsKLSAgICAg ICAgICAgIH0KKyAgICAgICAgICAgIH0gZWxzZQorICAgICAgICAgICAgICAgIGVudHJ5LmNsaXBw aW5nTGF5ZXItPnNldEJvdW5kc09yaWdpbih7IH0pOwogICAgICAgICB9CiAKICAgICAgICAgcGFy ZW50R3JhcGhpY3NMYXllclJlY3QgPSBsYXN0Q2xpcExheWVyUmVjdDsKZGlmZiAtLWdpdCBhL0xh eW91dFRlc3RzL0NoYW5nZUxvZyBiL0xheW91dFRlc3RzL0NoYW5nZUxvZwppbmRleCBhODhlOGNj NWE3ZDhhMWMxZThhMWFjZjk4YTYzNGY3Y2YwMjk4MzIxLi5jZWY5Zjk4MTVhZWY4ZjFjODVkMzA0 NTkxOWM5N2JlMzU2Y2U2YzlmIDEwMDY0NAotLS0gYS9MYXlvdXRUZXN0cy9DaGFuZ2VMb2cKKysr IGIvTGF5b3V0VGVzdHMvQ2hhbmdlTG9nCkBAIC0xLDMgKzEsMTMgQEAKKzIwMTktMDctMDMgIFNp bW9uIEZyYXNlciAgPHNpbW9uLmZyYXNlckBhcHBsZS5jb20+CisKKyAgICAgICAgU29tZSBsYXll cnMgaW5zaWRlIG92ZXJmbG93OnNjcm9sbCBtb3ZlIGJhY2sgdG8gY29ycmVjdCBwb3NpdGlvbnMg d2hlbiB0aGUgY29udGVudHMgYXJlIHNocnVuaworICAgICAgICBodHRwczovL2J1Z3Mud2Via2l0 Lm9yZy9zaG93X2J1Zy5jZ2k/aWQ9MTk5NDY0CisKKyAgICAgICAgUmV2aWV3ZWQgYnkgTk9CT0RZ IChPT1BTISkuCisKKyAgICAgICAgKiBjb21wb3NpdGluZy9zY3JvbGxpbmcvYXN5bmMtb3ZlcmZs b3ctc2Nyb2xsaW5nL2JlY29tZS1ub24tc2Nyb2xsYWJsZS13aXRoLWNoaWxkLWV4cGVjdGVkLmh0 bWw6IEFkZGVkLgorICAgICAgICAqIGNvbXBvc2l0aW5nL3Njcm9sbGluZy9hc3luYy1vdmVyZmxv dy1zY3JvbGxpbmcvYmVjb21lLW5vbi1zY3JvbGxhYmxlLXdpdGgtY2hpbGQuaHRtbDogQWRkZWQu CisKIDIwMTktMDctMDMgIEp1c3RpbiBGYW4gIDxqdXN0aW5fZmFuQGFwcGxlLmNvbT4KIAogICAg ICAgICBbV0hMU0xdIFN1cHBvcnQgZmxvYXQ0eDQgaW4gdGVzdCBoYXJuZXNzCmRpZmYgLS1naXQg YS9MYXlvdXRUZXN0cy9jb21wb3NpdGluZy9zY3JvbGxpbmcvYXN5bmMtb3ZlcmZsb3ctc2Nyb2xs aW5nL2JlY29tZS1ub24tc2Nyb2xsYWJsZS13aXRoLWNoaWxkLWV4cGVjdGVkLmh0bWwgYi9MYXlv dXRUZXN0cy9jb21wb3NpdGluZy9zY3JvbGxpbmcvYXN5bmMtb3ZlcmZsb3ctc2Nyb2xsaW5nL2Jl Y29tZS1ub24tc2Nyb2xsYWJsZS13aXRoLWNoaWxkLWV4cGVjdGVkLmh0bWwKbmV3IGZpbGUgbW9k ZSAxMDA2NDQKaW5kZXggMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMC4u YWVmMmQwNDhhNGI1MTU0YzNmNGZmNmQyNDJlMTY0YWI0OWEyMmMzYQotLS0gL2Rldi9udWxsCisr KyBiL0xheW91dFRlc3RzL2NvbXBvc2l0aW5nL3Njcm9sbGluZy9hc3luYy1vdmVyZmxvdy1zY3Jv bGxpbmcvYmVjb21lLW5vbi1zY3JvbGxhYmxlLXdpdGgtY2hpbGQtZXhwZWN0ZWQuaHRtbApAQCAt MCwwICsxLDMxIEBACis8IURPQ1RZUEUgaHRtbD4gPCEtLSB3ZWJraXQtdGVzdC1ydW5uZXIgWyBp bnRlcm5hbDpBc3luY092ZXJmbG93U2Nyb2xsaW5nRW5hYmxlZD10cnVlIF0gLS0+Cis8aHRtbD4K KzxoZWFkPgorICAgIDxzdHlsZT4KKyAgICAgICAgI3Njcm9sbGVyIHsKKyAgICAgICAgICAgIG92 ZXJmbG93OiBzY3JvbGw7CisgICAgICAgICAgICBoZWlnaHQ6IDQwMHB4OworICAgICAgICAgICAg d2lkdGg6IDQwMHB4OworICAgICAgICAgICAgYm9yZGVyOiAxcHggc29saWQgYmxhY2s7CisgICAg ICAgIH0KKworICAgICAgICAuY29tcG9zaXRlZCB7CisgICAgICAgICAgICB3aWR0aDogMjAwcHg7 CisgICAgICAgICAgICBoZWlnaHQ6IDIwMHB4OworICAgICAgICAgICAgYmFja2dyb3VuZC1jb2xv cjogZ3JlZW47CisgICAgICAgICAgICB0cmFuc2Zvcm06IHRyYW5zbGF0ZVooMCk7CisgICAgICAg IH0KKworICAgICAgICAuY29udGVudCB7CisgICAgICAgICAgICBoZWlnaHQ6IDEwMHB4OworICAg ICAgICB9CisgICAgPC9zdHlsZT4KKzwvaGVhZD4KKzxib2R5PgorICAgIDxzZWN0aW9uIGlkPSJz Y3JvbGxlciI+CisgICAgICAgIDxkaXYgY2xhc3M9ImNvbXBvc2l0ZWQiPjwvZGl2PgorICAgICAg ICA8ZGl2IGNsYXNzPSJjb250ZW50Ij48L2Rpdj4KKyAgICA8L3NlY3Rpb24+Cis8L2JvZHk+Cis8 L2h0bWw+CisKZGlmZiAtLWdpdCBhL0xheW91dFRlc3RzL2NvbXBvc2l0aW5nL3Njcm9sbGluZy9h c3luYy1vdmVyZmxvdy1zY3JvbGxpbmcvYmVjb21lLW5vbi1zY3JvbGxhYmxlLXdpdGgtY2hpbGQu aHRtbCBiL0xheW91dFRlc3RzL2NvbXBvc2l0aW5nL3Njcm9sbGluZy9hc3luYy1vdmVyZmxvdy1z Y3JvbGxpbmcvYmVjb21lLW5vbi1zY3JvbGxhYmxlLXdpdGgtY2hpbGQuaHRtbApuZXcgZmlsZSBt b2RlIDEwMDY0NAppbmRleCAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAw Li42MDRiNTEyZmFiNWUwMmQ5Njg4MzNiMDc4OWJlNDcxZWI5N2Q3YjJmCi0tLSAvZGV2L251bGwK KysrIGIvTGF5b3V0VGVzdHMvY29tcG9zaXRpbmcvc2Nyb2xsaW5nL2FzeW5jLW92ZXJmbG93LXNj cm9sbGluZy9iZWNvbWUtbm9uLXNjcm9sbGFibGUtd2l0aC1jaGlsZC5odG1sCkBAIC0wLDAgKzEs NDggQEAKKzwhRE9DVFlQRSBodG1sPiA8IS0tIHdlYmtpdC10ZXN0LXJ1bm5lciBbIGludGVybmFs OkFzeW5jT3ZlcmZsb3dTY3JvbGxpbmdFbmFibGVkPXRydWUgXSAtLT4KKzxodG1sPgorPGhlYWQ+ CisgICAgPHN0eWxlPgorICAgICAgICAjc2Nyb2xsZXIgeworICAgICAgICAgICAgb3ZlcmZsb3c6 IHNjcm9sbDsKKyAgICAgICAgICAgIGhlaWdodDogNDAwcHg7CisgICAgICAgICAgICB3aWR0aDog NDAwcHg7CisgICAgICAgICAgICBib3JkZXI6IDFweCBzb2xpZCBibGFjazsKKyAgICAgICAgfQor CisgICAgICAgIC5jb21wb3NpdGVkIHsKKyAgICAgICAgICAgIHdpZHRoOiAyMDBweDsKKyAgICAg ICAgICAgIGhlaWdodDogMjAwcHg7CisgICAgICAgICAgICBiYWNrZ3JvdW5kLWNvbG9yOiBncmVl bjsKKyAgICAgICAgICAgIHRyYW5zZm9ybTogdHJhbnNsYXRlWigwKTsKKyAgICAgICAgfQorCisg ICAgICAgIC5jb250ZW50IHsKKyAgICAgICAgICAgIGhlaWdodDogNzAwcHg7CisgICAgICAgIH0K KyAgICAgICAgCisgICAgICAgIC5jb250ZW50LmNoYW5nZWQgeworICAgICAgICAgICAgaGVpZ2h0 OiAxMDBweDsKKyAgICAgICAgfQorICAgIDwvc3R5bGU+CisgICAgPHNjcmlwdD4KKyAgICAgICAg aWYgKHdpbmRvdy50ZXN0UnVubmVyKQorICAgICAgICAgICAgdGVzdFJ1bm5lci53YWl0VW50aWxE b25lKCk7CisKKyAgICAgICAgd2luZG93LmFkZEV2ZW50TGlzdGVuZXIoJ2xvYWQnLCAoKSA9PiB7 CisgICAgICAgICAgICBzY3JvbGxlci5zY3JvbGxUbygwLCAxMDApOworICAgICAgICAgICAgc2V0 VGltZW91dCgoKSA9PiB7CisgICAgICAgICAgICAgICAgZG9jdW1lbnQucXVlcnlTZWxlY3Rvcign LmNvbnRlbnQnKS5jbGFzc0xpc3QuYWRkKCdjaGFuZ2VkJyk7CisgICAgICAgICAgICAgICAgaWYg KHdpbmRvdy50ZXN0UnVubmVyKQorICAgICAgICAgICAgICAgICAgICB0ZXN0UnVubmVyLm5vdGlm eURvbmUoKTsKKyAgICAgICAgICAgIH0sIDApOworICAgICAgICB9LCBmYWxzZSk7CisgICAgPC9z Y3JpcHQ+Cis8L2hlYWQ+Cis8Ym9keT4KKyAgICA8c2VjdGlvbiBpZD0ic2Nyb2xsZXIiPgorICAg ICAgICA8ZGl2IGNsYXNzPSJjb21wb3NpdGVkIj48L2Rpdj4KKyAgICAgICAgPGRpdiBjbGFzcz0i Y29udGVudCI+PC9kaXY+CisgICAgPC9zZWN0aW9uPgorPC9ib2R5PgorPC9odG1sPgorCg==