233449 2021-11-23 09:22:00 -0800 AX: range input does not fire input event when incremented/decremented via accessibility APIs 2024-04-07 12:13:45 -0700 1 1 1 Unclassified WebKit Accessibility Safari 15 All All RESOLVED FIXED InRadar P2 Normal --- 1 me tyler_w aboxhall akeerthi andresg_22 apinheiro cfleizach dmazzoni ews-watchlist jcraig samuel_white tyler_w webkit-bug-importer webkit.org oldest_to_newest 1817482 0 445036 me 2021-11-23 09:22:00 -0800 Created attachment 445036 Basid range input logging input and change events <input type=range> does not fire the 'input' event when using the OS accessibility action APIs to increment/decrement it's value. Both macOS and iOS VoiceOver use the increment/decrement actions. This can break code that relies on only the 'input' event to respond to the range input changing values. 1. Open either the attached chromebug-1272108.html or https://westonthayer.github.io/hosting/chromebug-1272107.html in Safari 2. Open Xcode Accessibility Inspector 3. Select the range input (you can use Accessibility Inspector's Point to Inspect crosshairs) 4. Accessibility Inspector's inspected element should have type: slider 5. Expand Accessibility Inspector's Actions menu and perform either the 'increment' or 'decrement' actions Expected result: The log below the range input should show both "input: NEW_VALUE" and "change: NEW_VALUE", just as it does if you use the mouse or keyboard to change the range input's value. Actual result: The log only shows "change: NEW_VALUE". 1817484 1 webkit-bug-importer 2021-11-23 09:22:13 -0800 <rdar://problem/85707481> 1817485 2 me 2021-11-23 09:25:57 -0800 I believe firing 'input' is required by the HTML spec: https://html.spec.whatwg.org/multipage/indices.html#event-input 2012612 3 webkit.org 2024-02-11 12:47:04 -0800 This is still a problem on macOS 14.3 with Safari 17.3 and on iOS 17.3.1. In practice, it's less of an issue with macOS as users likely change the value with up, down, left, right arrows without a modifier, triggering both events as any keyboard user would. The problem can still be replicated by navigating "In slider" (VO+Shift+down arrow) then using VO+up, down, left, right arrows; 'change' events are triggered but 'input' events are not. 2026598 4 470797 tyler_w 2024-04-06 22:47:50 -0700 Created attachment 470797 Patch 2026623 5 470801 tyler_w 2024-04-07 08:23:53 -0700 Created attachment 470801 Patch 2026633 6 ews-feeder 2024-04-07 12:13:43 -0700 Committed 277182@main (87dc85177fd8): <https://commits.webkit.org/277182@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 470801. 445036 2021-11-23 09:22:00 -0800 2021-11-23 09:22:00 -0800 Basid range input logging input and change events chromebug-1272107.html text/html 1085 me PCFET0NUWVBFIGh0bWw+CjwhLS0KQ3JlYXRlZCB1c2luZyBKUyBCaW4KaHR0cDovL2pzYmluLmNv bQoKQ29weXJpZ2h0IChjKSAyMDIxIGJ5IGFub255bW91cyAoaHR0cDovL2pzYmluLmNvbS96b3Fp amFjYWhvLzEvZWRpdCkKClJlbGVhc2VkIHVuZGVyIHRoZSBNSVQgbGljZW5zZTogaHR0cDovL2pz YmluLm1pdC1saWNlbnNlLm9yZwotLT4KPG1ldGEgbmFtZT0icm9ib3RzIiBjb250ZW50PSJub2lu ZGV4Ij4KPGh0bWw+CjxoZWFkPgogIDxtZXRhIGNoYXJzZXQ9InV0Zi04Ij4KICA8bWV0YSBuYW1l PSJ2aWV3cG9ydCIgY29udGVudD0id2lkdGg9ZGV2aWNlLXdpZHRoIj4KICA8dGl0bGU+SlMgQmlu PC90aXRsZT4KPHN0eWxlIGlkPSJqc2Jpbi1jc3MiPgppbnB1dCB7DQogIGRpc3BsYXk6IGJsb2Nr Ow0KICB3aWR0aDogMTAwJTsNCn0NCg0KaW5wdXQ6Zm9jdXMgew0KICBvdXRsaW5lOiAxcHggc29s aWQgYmx1ZTsNCn0KPC9zdHlsZT4KPC9oZWFkPgo8Ym9keT4KICA8YnV0dG9uPmZvY3VzIHRhcmdl dDwvYnV0dG9uPgogIDxsYWJlbD4KICAgIEFuIGlucHV0CiAgICA8aW5wdXQgaWQ9InNsaWRlciIg 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