[Webkit-unassigned] [Bug 195790] New: transform matrix which cannot be decomposed shouldn't be interpolated with other value

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=195790

            Bug ID: 195790
           Summary: transform matrix which cannot be decomposed shouldn't
                    be interpolated with other value
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: xidorn-webkit at upsuper.org

Created attachment 364765

  --> https://bugs.webkit.org/attachment.cgi?id=364765&action=review

testcase

Steps to reproduce:
1. open the attached testcase
2. click the "toggle" button and observe
3. click it again

Actual result:
The rectangle animates when it shows and hides.

Expected result:
The rectangle should just show and hide without any animation.

Explanation:
Here I use `transform: matrix(0, 0, 0, 0, 0, 0)` to hide the rectangle. This is a matrix which cannot be decomposed. Based on the spec, this value should not be interpolated with other values.


It works as expected on Firefox and Chrome.

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20190315/a490ef33/attachment.html>