135689 2014-08-06 22:26:01 -0700 AX: event.target should sometimes be a descendant element on AXPress-triggered mouse clicks 2014-12-18 14:59:41 -0800 1 1 1 Unclassified WebKit Accessibility 528+ (Nightly build) All All RESOLVED FIXED InRadar P2 Normal --- 131426 1 jcraig cfleizach aboxhall apinheiro cfleizach commit-queue dino dmazzoni jcraig jdiggs mario samuel_white webkit-bug-importer oldest_to_newest 1027421 0 jcraig 2014-08-06 22:26:01 -0700 AXPress sometimes triggers the click event (and other mouse events) on a different element than a real mouse click would use. We should try using hit-testing at the center of the clickable (link, button, etc.) to determine the element on which to initiate the mouse events. In some cases, it may be better to a descendant node as the event.target. If the center point hit-test results in a node that is not a descendant, we should ignore it and fire the event on the original element. To be clear, I don’t think WebKit is doing anything wrong, but there are times when web authors do silly things. VO+Space doesn’t work, but routing the mouse to an element and triggering a simulated mouse click does. This idea is mainly to work around those web authoring problems, and make it so that AXPress works in more scenarios. 1027422 1 webkit-bug-importer 2014-08-06 22:26:17 -0700 <rdar://problem/17941920> 1027427 2 jcraig 2014-08-06 23:15:10 -0700 Looks like at least part of this was done in bug 131426. I'll try to attach a test case where it doesn't work. 1027430 3 236174 jcraig 2014-08-06 23:26:49 -0700 Created attachment 236174 test case 1027431 4 jcraig 2014-08-06 23:28:36 -0700 In the attached test case, the second clickable element (image inside button) is trigger by AXPress, but the first clickable element (span inside link) is only clickable with the mouse, not AXPress. 1027435 5 236176 jcraig 2014-08-07 00:26:51 -0700 Created attachment 236176 updated test case updated test case logs the event target and includes some failure cases to ensure we don't click things that are positioned over the top of the element in the VO cursor. 1027893 6 jcraig 2014-08-08 11:25:48 -0700 Might need to ignore any child that does not accept pointer events via CSS. See bug 11395 and Dean's write-up: http://www.webkit.org/specs/PointerEventsProperty.html 1055890 7 243353 cfleizach 2014-12-15 23:54:39 -0800 Created attachment 243353 patch 1055891 8 cfleizach 2014-12-15 23:55:35 -0800 Note: I did not cover the cases in your original test case about the intercepting view. We have code specifically to fall back to the original element if we hit-test to a non-descendant. I'm worried about removing that code. 1056873 9 243353 mario 2014-12-18 13:21:04 -0800 Comment on attachment 243353 patch View in context: https://bugs.webkit.org/attachment.cgi?id=243353&action=review > LayoutTests/accessibility/press-target-uses-text-descendant-node.html:21 > + .target { > + background-color: yellow; > + } Nit: this looks misaligned 1056909 10 cfleizach 2014-12-18 14:59:41 -0800 http://trac.webkit.org/changeset/177532 236174 2014-08-06 23:26:49 -0700 2014-08-07 00:26:51 -0700 test case 135689.html text/html 736 jcraig PCFET0NUWVBFIGh0bWw+CjxodG1sPgo8aGVhZD4KCTx0aXRsZT50ZXN0IGNhc2U8L3RpdGxlPgoJ PHN0eWxlIHR5cGU9InRleHQvY3NzIj4KCQlhOmxpbmssIGJ1dHRvbiB7CgkJCXBhZGRpbmc6IDE1 cHg7CgkJCWJhY2tncm91bmQtY29sb3I6IHJlZDsKCQkJZGlzcGxheTogaW5saW5lLWJsb2NrOwoJ CX0KCQkudGFyZ2V0IHsKCQkJYmFja2dyb3VuZC1jb2xvcjogeWVsbG93OwoJCX0KCTwvc3R5bGU+ Cgk8c2NyaXB0IHR5cGU9InRleHQvamF2YXNjcmlwdCI+CgkJZnVuY3Rpb24gaGFuZGxlQ2xpY2so 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