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Interpolate -moz-image-region value as discrete if there is a 'auto' value.

NEW
Unassigned

Status

()

Product:
Core
Component:
CSS Parsing and Computation
Importance:
P4
normal
Reported:
a year ago
Modified:
a year ago

People

(Reporter: hiro, Unassigned)

Tracking

Version:
Trunk
Points:
---

Firefox Tracking Flags

(firefox57 affected)

Details
(Reporter)

Description

•
a year ago 
Just like mClipFlags. Otherwise when we convert the Gecko value to servo one we lose the information. As a result a test case in test_transitions_per_property.html fails.

TEST-UNEXPECTED-FAIL | layout/style/test/test_transitions_per_property.html | rect-valued property -moz-image-region: interpolation of rects - got "rect(0px, 4px, 4px, 2px)", expected "rect(3px, 13px, 10px, 5px)"
(Reporter)

Comment 1

•
a year ago 
Ok, currently on Gecko interpolation between rect() which has 'auto' value and normal rect is not handled as discrete, it can interpolate as if 'auto' value is zero.

So we can just do the same behavior for stylo.

I am going to reuse this bug for gecko. To handle rect which has 'auto' as discrete we need mImageRegionFlags to distinguish zero value from auto I guess.
Summary: stylo: Need mImageRegionFlags to distinguish zero value from auto → Interpolate -moz-image-region value as discrete if there is a 'auto' value.
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