179564 2017-11-10 16:53:31 -0800 Compositing layers in UIWebView are often missing content after scrolling 2017-11-10 17:08:32 -0800 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 simon.fraser simon.fraser simon.fraser thorton webkit-bug-importer oldest_to_newest 1370595 0 simon.fraser 2017-11-10 16:53:31 -0800 Compositing layers in UIWebView are often missing content after scrolling 1370603 1 326663 simon.fraser 2017-11-10 16:58:32 -0800 Created attachment 326663 Patch 1370604 2 simon.fraser 2017-11-10 16:59:20 -0800 rdar://problem/33885639 1370606 3 simon.fraser 2017-11-10 17:08:32 -0800 https://trac.webkit.org/r224716 326663 2017-11-10 16:58:32 -0800 2017-11-10 17:00:00 -0800 Patch bug-179564-20171110165831.patch text/plain 2587 simon.fraser U3VidmVyc2lvbiBSZXZpc2lvbjogMjI0NTEwCmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViQ29yZS9D aGFuZ2VMb2cgYi9Tb3VyY2UvV2ViQ29yZS9DaGFuZ2VMb2cKaW5kZXggZDFjNDBkMDYwYzg1YzU2 ZGQxYTEzNTY5ZWVmMzg3YmQ2NDdkMzhjZi4uMWZiNGM3ZjRhNTlmNGI1MjdlMTAxMjhmMGI1MmI3 Nzk1ZDY3OTA0YyAxMDA2NDQKLS0tIGEvU291cmNlL1dlYkNvcmUvQ2hhbmdlTG9nCisrKyBiL1Nv dXJjZS9XZWJDb3JlL0NoYW5nZUxvZwpAQCAtMSw1ICsxLDI0IEBACiAyMDE3LTExLTEwICBTaW1v biBGcmFzZXIgIDxzaW1vbi5mcmFzZXJAYXBwbGUuY29tPgogCisgICAgICAgIENvbXBvc2l0aW5n IGxheWVycyBpbiBVSVdlYlZpZXcgYXJlIG9mdGVuIG1pc3NpbmcgY29udGVudCBhZnRlciBzY3Jv bGxpbmcKKyAgICAgICAgaHR0cHM6Ly9idWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTE3 OTU2NAorICAgICAgICByZGFyOi8vcHJvYmxlbS8zMzg4NTYzOQorCisgICAgICAgIFJldmlld2Vk IGJ5IE5PQk9EWSAoT09QUyEpLgorICAgICAgICAKKyAgICAgICAgV2hlbiBkcm9wcGluZyBiYWNr aW5nIHN0b3JlIGZvciBsYXllcnMgb3V0c2lkZSB0aGUgdmlld3BvcnQsIHdlIHJlbHkgb24gYSBj b21wb3NpdGluZworICAgICAgICBsYXllciBmbHVzaCB0byBjb21wdXRlIGxheWVyIHZpc2liaWxp dHkgYW5kIGJyaW5nIHRoZSBiYWNraW5nIHN0b3JlIGJhY2sgd2hlbiBuZWNlc3NhcnkuCisKKyAg ICAgICAgSW4gVUlXZWJWaWV3LCB3ZSBoYXZlIGEgbWVjaGFuaXNtIHRvIHRyaWdnZXIgZmx1c2hp bmcgb24gdXNlciBzY3JvbGxpbmcgYnV0IGl0IG9ubHkgdHJpZ2dlcnMKKyAgICAgICAgd2hlbiB0 aGVyZSBhcmUgdGlsZWQgbGF5ZXJzLiBSZW1vdmUgdGhhdCBjb25kaXRpb24gc28gaXQgdHJpZ2dl cnMgYWx3YXlzLCBub3cgdGhhdAorICAgICAgICBiYWNraW5nIHN0b3JlIGF2YWlsYWJpbGl0eSBh bHNvIGRlcGVuZHMgb24gdGhpcy4KKworICAgICAgICAqIHBhZ2UvaW9zL0ZyYW1lSU9TLm1tOgor ICAgICAgICAoV2ViQ29yZTo6RnJhbWU6OnZpZXdwb3J0T2Zmc2V0Q2hhbmdlZCk6CisgICAgICAg IChXZWJDb3JlOjphbnlGcmFtZUhhc1RpbGVkTGF5ZXJzKTogRGVsZXRlZC4KKworMjAxNy0xMS0x MCAgU2ltb24gRnJhc2VyICA8c2ltb24uZnJhc2VyQGFwcGxlLmNvbT4KKwogICAgICAgICBDb250 ZW50cyBvZiBjb21wb3NpdGVkIG92ZXJmbG93LXNjcm9sbCBhcmUgbWlzc2luZyB3aGVuIG5ld2x5 IGFkZGVkCiAgICAgICAgIGh0dHBzOi8vYnVncy53ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD0x Nzk1NTYKICAgICAgICAgcmRhcjovL3Byb2JsZW0vMjAzNjgyOTQKZGlmZiAtLWdpdCBhL1NvdXJj ZS9XZWJDb3JlL3BhZ2UvaW9zL0ZyYW1lSU9TLm1tIGIvU291cmNlL1dlYkNvcmUvcGFnZS9pb3Mv RnJhbWVJT1MubW0KaW5kZXggMzgwMjI3ODNlOWE0ODU3YjUwMzBiODRmN2M4OWFlYmZhZWNmODIx OS4uYjMzZTg2OTdlMjk1Yjg3ZTlhOTA0NzExOTljN2Y2MGM5NDU0ZjRlMyAxMDA2NDQKLS0tIGEv U291cmNlL1dlYkNvcmUvcGFnZS9pb3MvRnJhbWVJT1MubW0KKysrIGIvU291cmNlL1dlYkNvcmUv cGFnZS9pb3MvRnJhbWVJT1MubW0KQEAgLTY5OSwyNCArNjk5LDEzIEBAIE5TQXJyYXkgKkZyYW1l OjppbnRlcnByZXRhdGlvbnNGb3JDdXJyZW50Um9vdCgpIGNvbnN0CiAgICAgcmV0dXJuIHJlc3Vs dDsKIH0KIAotc3RhdGljIGJvb2wgYW55RnJhbWVIYXNUaWxlZExheWVycyhGcmFtZSogcm9vdEZy YW1lKQotewotICAgIGZvciAoRnJhbWUqIGZyYW1lID0gcm9vdEZyYW1lOyBmcmFtZTsgZnJhbWUg PSBmcmFtZS0+dHJlZSgpLnRyYXZlcnNlTmV4dChyb290RnJhbWUpKSB7Ci0gICAgICAgIGlmIChm cmFtZS0+Y29udGFpbnNUaWxlZEJhY2tpbmdMYXllcnMoKSkKLSAgICAgICAgICAgIHJldHVybiB0 cnVlOwotICAgIH0KLSAgICByZXR1cm4gZmFsc2U7Ci19Ci0KIHZvaWQgRnJhbWU6OnZpZXdwb3J0 T2Zmc2V0Q2hhbmdlZChWaWV3cG9ydE9mZnNldENoYW5nZVR5cGUgY2hhbmdlVHlwZSkKIHsKICAg ICBMT0dfV0lUSF9TVFJFQU0oU2Nyb2xsaW5nLCBzdHJlYW0gPDwgIkZyYW1lOjp2aWV3cG9ydE9m ZnNldENoYW5nZWQgLSAiIDw8IChjaGFuZ2VUeXBlID09IEluY3JlbWVudGFsU2Nyb2xsT2Zmc2V0 ID8gImluY3JlbWVudGFsIiA6ICJjb21wbGV0ZWQiKSk7CiAKICAgICBpZiAoY2hhbmdlVHlwZSA9 PSBJbmNyZW1lbnRhbFNjcm9sbE9mZnNldCkgewotICAgICAgICBpZiAoYW55RnJhbWVIYXNUaWxl ZExheWVycyh0aGlzKSkgewotICAgICAgICAgICAgaWYgKFJlbmRlclZpZXcqIHJvb3QgPSBjb250 ZW50UmVuZGVyZXIoKSkKLSAgICAgICAgICAgICAgICByb290LT5jb21wb3NpdG9yKCkuZGlkQ2hh bmdlVmlzaWJsZVJlY3QoKTsKLSAgICAgICAgfQorICAgICAgICBpZiAoUmVuZGVyVmlldyogcm9v dCA9IGNvbnRlbnRSZW5kZXJlcigpKQorICAgICAgICAgICAgcm9vdC0+Y29tcG9zaXRvcigpLmRp ZENoYW5nZVZpc2libGVSZWN0KCk7CiAgICAgfQogCiAgICAgaWYgKGNoYW5nZVR5cGUgPT0gQ29t cGxldGVkU2Nyb2xsT2Zmc2V0KSB7Cg==