148086 2015-08-17 13:02:20 -0700 Cannot change WKWebView scrollView deceleration rate 2016-08-02 13:56:29 -0700 1 1 1 Unclassified WebKit WebKit2 WebKit Nightly Build iPhone / iPad Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 wenson_hsieh webkit-unassigned rob webkit-bug-importer oldest_to_newest 1118198 0 wenson_hsieh 2015-08-17 13:02:20 -0700 Currently, developers are not able to change a WKScrollView's decelerationRate by explicitly setting it, e.g. webView.scrollView.decelerationRate = UIScrollViewDecelerationRateNormal; This fixes the deceleration rate to UIScrollViewDecelerationRateFast. This is because _preferredScrollDecelerationFactor in WKScrollView is not updated when [WKScrollView setDecelerationRate] is invoked, so when the snap points code determines whether the decelerationRate should be fast or whatever the preferred value is, the decelerationRate is always set to UIScrollViewDecelerationRateFast. 1118200 1 wenson_hsieh 2015-08-17 13:05:06 -0700 <rdar://problem/21893685> 1118202 2 259173 wenson_hsieh 2015-08-17 13:12:24 -0700 Created attachment 259173 Patch 1118217 3 259173 simon.fraser 2015-08-17 13:27:06 -0700 Comment on attachment 259173 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=259173&action=review > Source/WebKit2/ChangeLog:5 > + https://bugs.webkit.org/show_bug.cgi?id=148086 > + There should be a radar url here too. > Source/WebKit2/ChangeLog:8 > + Updates the preferred scroll deceleration factor when the scrollView's decelerationRate is explicitly set. Can you put more words here to say why this fixes the bug? 1118224 4 wenson_hsieh 2015-08-17 13:39:10 -0700 Committed r188541: <http://trac.webkit.org/changeset/188541> 1216589 5 rob 2016-08-02 13:42:07 -0700 (In reply to comment #4) > Committed r188541: <http://trac.webkit.org/changeset/188541> @Wenson: Can you specify what version of iOS this bug fix was released with? Still seems to be an issue in iOS 9.3 13E230. 1216595 6 wenson_hsieh 2016-08-02 13:56:29 -0700 Hi Rob, As far as I know, this fix did not make it into iOS 9. Could you try it out on the iOS 10 beta? Thanks! Wenson 259173 2015-08-17 13:12:24 -0700 2015-08-17 13:27:06 -0700 Patch bug-148086-20150817131223.patch text/plain 1589 wenson_hsieh U3VidmVyc2lvbiBSZXZpc2lvbjogMTg4NTEyCmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViS2l0Mi9D aGFuZ2VMb2cgYi9Tb3VyY2UvV2ViS2l0Mi9DaGFuZ2VMb2cKaW5kZXggYjEzZjkyNWI4ODAyNTEy NDAxNzQ5N2ZhNjQxMjExYWYzMGJkMTUwYi4uNmI4NWU4Y2JiZjU4NzljOWE3ODA4MDYyN2UzMjMx YWY2NzNhYzQzMyAxMDA2NDQKLS0tIGEvU291cmNlL1dlYktpdDIvQ2hhbmdlTG9nCisrKyBiL1Nv dXJjZS9XZWJLaXQyL0NoYW5nZUxvZwpAQCAtMSwzICsxLDE1IEBACisyMDE1LTA4LTE3ICBXZW5z b24gSHNpZWggIDx3ZW5zb25faHNpZWhAYXBwbGUuY29tPgorCisgICAgICAgIENhbm5vdCBjaGFu Z2UgV0tXZWJWaWV3IHNjcm9sbFZpZXcgZGVjZWxlcmF0aW9uIHJhdGUKKyAgICAgICAgaHR0cHM6 Ly9idWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTE0ODA4NgorCisgICAgICAgIFJldmll d2VkIGJ5IE5PQk9EWSAoT09QUyEpLgorCisgICAgICAgIFVwZGF0ZXMgdGhlIHByZWZlcnJlZCBz Y3JvbGwgZGVjZWxlcmF0aW9uIGZhY3RvciB3aGVuIHRoZSBzY3JvbGxWaWV3J3MgZGVjZWxlcmF0 aW9uUmF0ZSBpcyBleHBsaWNpdGx5IHNldC4KKworICAgICAgICAqIFVJUHJvY2Vzcy9pb3MvV0tT Y3JvbGxWaWV3Lm1tOgorICAgICAgICAoLVtXS1Njcm9sbFZpZXcgc2V0RGVjZWxlcmF0aW9uUmF0 ZTpdKTogT3ZlcnJpZGVzIHNldERlY2VsZXJhdGlvblJhdGUgdG8gdXBkYXRlIF9wcmVmZXJyZWRT Y3JvbGxEZWNlbGVyYXRpb25GYWN0b3IuCisKIDIwMTUtMDgtMTMgIEFuZHkgRXN0ZXMgIDxhZXN0 ZXNAYXBwbGUuY29tPgogCiAgICAgICAgIFtDb2NvYV0gRG93bmxvYWRzIGRvIG5vdCBzdGFydCBp ZiBwb2xpY3kgZGVjaXNpb24gaXMgbWFkZSBhc3luY2hyb25vdXNseQpkaWZmIC0tZ2l0IGEvU291 cmNlL1dlYktpdDIvVUlQcm9jZXNzL2lvcy9XS1Njcm9sbFZpZXcubW0gYi9Tb3VyY2UvV2ViS2l0 Mi9VSVByb2Nlc3MvaW9zL1dLU2Nyb2xsVmlldy5tbQppbmRleCA2Mzk4OTRiMjVjMWQxNWY4ZjNi ZGFhNzY4NTc3YTkzYmFjMDNjNTYxLi42NTk4YmQxYTA5MjU4ZTRiNzE1NDE4MWY3OGNlZDY3YWUx MWU4ODE3IDEwMDY0NAotLS0gYS9Tb3VyY2UvV2ViS2l0Mi9VSVByb2Nlc3MvaW9zL1dLU2Nyb2xs Vmlldy5tbQorKysgYi9Tb3VyY2UvV2ViS2l0Mi9VSVByb2Nlc3MvaW9zL1dLU2Nyb2xsVmlldy5t bQpAQCAtMjY3LDYgKzI2NywxMiBAQCAtICh2b2lkKV9zZXRDb250ZW50U2l6ZVByZXNlcnZpbmdD b250ZW50T2Zmc2V0RHVyaW5nUnViYmVyYmFuZDooQ0dTaXplKWNvbnRlbnRTaQogICAgICAgICBb c2VsZiBfcmVzdG9yZUNvbnRlbnRPZmZzZXRXaXRoUnViYmVyYmFuZEFtb3VudDpydWJiZXJiYW5k QW1vdW50XTsKIH0KIAorLSAodm9pZClzZXREZWNlbGVyYXRpb25SYXRlOihDR0Zsb2F0KWRlY2Vs ZXJhdGlvblJhdGUKK3sKKyAgICBbc3VwZXIgc2V0RGVjZWxlcmF0aW9uUmF0ZTpkZWNlbGVyYXRp b25SYXRlXTsKKyAgICBfcHJlZmVycmVkU2Nyb2xsRGVjZWxlcmF0aW9uRmFjdG9yID0gZGVjZWxl cmF0aW9uUmF0ZTsKK30KKwogQGVuZAogCiAjZW5kaWYgLy8gUExBVEZPUk0oSU9TKQo=