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[scroll-animations-1] Make scroll-timeline and scroll-timeline-name support multiple timelines fixing #7657 #8087

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merged 1 commit into from
Dec 6, 2022
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[scroll-animations-1] Make scroll-timeline and scroll-timeline-name support multiple timelines fixing #7657 #8087

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23 changes: 16 additions & 7 deletions scroll-animations-1/Overview.bs
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Expand Up @@ -276,41 +276,50 @@ spec: cssom-view-1; type: dfn;

<pre class='propdef'>
Name: scroll-timeline-name
Value: none | <<custom-ident>>
Value: none | <<custom-ident>>#
Initial: none
Applies to: [=scroll containers=]
Inherited: no
Computed value: the specified keyword
Computed value: the keyword ''scroll-timeline-name/none'' or a list of <<custom-ident>>s
Animation type: not animatable
</pre>

Specifies a name for the [=scroll progress timeline=]
Specifies names for the [=scroll progress timelines=]
associated with this [=scroll container=].
The axis for this timeline is given by 'scroll-timeline-axis'.

Note: The number of names listed here
determines the number of [=scroll progress timelines=]
associated with this element.

### Axis of a Scroll Progress Timeline: the 'scroll-timeline-axis' property ### {#scroll-timeline-axis}

<pre class='propdef'>
Name: scroll-timeline-axis
Value: block | inline | vertical | horizontal
Value: [ block | inline | vertical | horizontal ]#
Initial: block
Applies to: [=scroll containers=]
Inherited: no
Computed value: the specified keyword
Computed value: a list of the keywords specified
Animation type: not animatable
</pre>

Specifies an axis for the [=scroll progress timeline=]
Specifies an axis for each [=scroll progress timeline=]
associated with this [=scroll container=].
The name for this timeline is given by 'scroll-timeline-name'.

Values are as defined for ''scroll()''.

If 'scroll-timeline-name' has more names than 'scroll-timeline-axis' has specified axes,
the excess timelines use the last 'scroll-timeline-axis' value.
If 'scroll-timeline-name' has fewer names than 'scroll-timeline-axis' has specified axes,
the used 'scroll-timeline-axis' list is truncated.

### Scroll Timeline Shorthand: the 'scroll-timeline' shorthand ### {#scroll-timeline-shorthand}

<pre class='propdef shorthand'>
Name: scroll-timeline
Value: <<'scroll-timeline-name'>> || <<'scroll-timeline-axis'>>
Value: [ <<'scroll-timeline-name'>> || <<'scroll-timeline-axis'>> ]#
Applies to: [=scroll containers=]
Inherited: no
Animation type: not animatable
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