217148 2020-09-30 15:27:30 -0700 [macCatalyst] Crash when attempting to display a select dropdown in a UIWebView 2020-10-01 11:32:15 -0700 1 1 1 Unclassified WebKit Forms Other Other Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 akeerthi akeerthi cdumez darin megan_gardner thorton webkit-bug-importer wenson_hsieh oldest_to_newest 1693541 0 akeerthi 2020-09-30 15:27:30 -0700 ... 1693542 1 akeerthi 2020-09-30 15:28:11 -0700 <rdar://problem/64004677> 1693554 2 410160 akeerthi 2020-09-30 15:51:11 -0700 Created attachment 410160 Patch 1693556 3 410160 darin 2020-09-30 15:56:57 -0700 Comment on attachment 410160 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=410160&action=review Seems OK, but could be even better. > Source/WebKitLegacy/mac/ChangeLog:33 > + This change is only made for Catalyst, in order to avoid compatibility > + issues. Could you elaborate on this? I understand there may be compatibility risk, but aside from the risk, could this be helpful on Mac outside Catalyst? > Source/WebKitLegacy/mac/ChangeLog:35 > + No new tests as the functionality is dependent on a UIKit change. I am concerned about something so subtle not being covered by a test. > Source/WebKitLegacy/mac/WebView/WebHTMLView.mm:4655 > +#if PLATFORM(MACCATALYST) In a case like this where there is no obvious reason for a platform difference, I think we need a comment explaining the reason we chose a different behavior between platforms. This is not just leaving out some code that deals with a platform-specific concept (like the secure input state and completion controller on Mac and dictation markers on iOS above). > Source/WebKitLegacy/mac/WebView/WebHTMLView.mm:4657 > + if ([[self _webView] _isPerformingProgrammaticFocus]) > + return resign; It seems a slightly unsafe pattern to use an early return here; does not seem like the "null frame" and "null page" cases above. Could we instead just "skip the setFocused call" even if that makes the patch bigger? Like a boolean "shouldClearFocus" that is a constant outside PLATFORM(MACCATALYST). 1693626 4 410192 akeerthi 2020-09-30 19:31:20 -0700 Created attachment 410192 Patch 1693628 5 akeerthi 2020-09-30 19:39:57 -0700 (In reply to Darin Adler from comment #3) > Comment on attachment 410160 [details] > Patch > > View in context: > https://bugs.webkit.org/attachment.cgi?id=410160&action=review > > Seems OK, but could be even better. > > > Source/WebKitLegacy/mac/ChangeLog:33 > > + This change is only made for Catalyst, in order to avoid compatibility > > + issues. > > Could you elaborate on this? I understand there may be compatibility risk, > but aside from the risk, could this be helpful on Mac outside Catalyst? After looking at the existing cases where [WebView _isPerformingProgrammaticFocus] is true, I decided to apply the change to all platforms. The explanation is in the Changelog, but I will give a brief one here too: There's currently only one codepath where [WebView _isPerformingProgrammaticFocus] is true and its when the first responder is resigned as a result of a call to WebChromeClient::makeFirstResponder. That method calls a WebUIDelegate method which guarantees the new responder "is in the view subhierarchy of the top-level web view for this WebView". This means that `nextResponderIsInWebView` is always true when [WebView _isPerformingProgrammaticFocus] is true. 1693808 6 ews-feeder 2020-10-01 11:32:14 -0700 Committed r267845: <https://trac.webkit.org/changeset/267845> All reviewed patches have been landed. Closing bug and clearing flags on attachment 410192. 410160 2020-09-30 15:51:11 -0700 2020-09-30 19:31:17 -0700 Patch bug-217148-20200930185110.patch text/plain 3227 akeerthi U3VidmVyc2lvbiBSZXZpc2lvbjogMjY3NjkwCmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViS2l0TGVn YWN5L21hYy9DaGFuZ2VMb2cgYi9Tb3VyY2UvV2ViS2l0TGVnYWN5L21hYy9DaGFuZ2VMb2cKaW5k ZXggMTgzZjlmNTJmZjI2M2Q0YTg1ZWJhODk4MWZhYTJiZTAwZWQ2MmI3MC4uMWU3MDliZmE1ZGQ3 ZTNjOTNmZTI4Zjk1NzhiZGI1ODA3YWEyYzY5NCAxMDA2NDQKLS0tIGEvU291cmNlL1dlYktpdExl Z2FjeS9tYWMvQ2hhbmdlTG9nCisrKyBiL1NvdXJjZS9XZWJLaXRMZWdhY3kvbWFjL0NoYW5nZUxv ZwpAQCAtMSwzICsxLDQyIEBACisyMDIwLTA5LTMwICBBZGl0eWEgS2VlcnRoaSAgPGFrZWVydGhp QGFwcGxlLmNvbT4KKworICAgICAgICBbbWFjQ2F0YWx5c3RdIENyYXNoIHdoZW4gYXR0ZW1wdGlu ZyB0byBkaXNwbGF5IGEgc2VsZWN0IGRyb3Bkb3duIGluIGEgVUlXZWJWaWV3CisgICAgICAgIGh0 dHBzOi8vYnVncy53ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD0yMTcxNDgKKyAgICAgICAgPHJk YXI6Ly9wcm9ibGVtLzY0MDA0Njc3PgorCisgICAgICAgIFJldmlld2VkIGJ5IE5PQk9EWSAoT09Q 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