Bug 199451

Summary: scrollLeft can become positive in vertical-rl writing-mode when -webkit-scrollbar is used
Product: WebKit Reporter: Frédéric Wang (:fredw) <fred.wang>
Component: ScrollingAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: ahmad.saleem792, cathiechen, karlcow, simon.fraser
Priority: P2    
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on:    
Bug Blocks: 161611    
Attachments:
Description Flags
testcase none

Frédéric Wang (:fredw)
Reported 2019-07-03 09:59:02 PDT
Created attachment 373393 [details] testcase See the attached testcase. The elements have writing-mode vertical-rl and so scrollLeft goes from 0 (right) to left -200 (left). However, when using -webkit-scrollbar, it is possible to make scrollLeft take a positive value. Note that this issue does not seem to happen with other writing-mode / direction values or when -webkit-scrollbar is not set: https://people.igalia.com/fwang/scrollLeft-scrollTop.html For now Cathie added a workround to https://w3c-test.org/css/cssom-view/scrollIntoView-vertical-rl-writing-mode.html to make the test pass in WebKit (it seems -webkit-scrollbar is used when using WebKit's layout test runner)
Attachments
testcase (1.89 KB, text/html)
2019-07-03 09:59 PDT, Frédéric Wang (:fredw) 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Ahmad Saleem
Comment 1 2024-09-08 11:35:50 PDT
Firefox Nightly 132 and Safari Technology Preview 202 match in scrollbar placement while Chrome Canary 130 differ.
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