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style: Only expose longhands to rust via iterators.

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The key here is that we only filter longhands if the shorthand is accessible to
content and vice-versa. This prevents the bug that prevented me to land this
patch before, which was us not expanding properly chrome-only shorthands.

Again, this is incomplete, and I need to teach LonghandsToSerialize to get a
potentially incomplete list of properties, and all that.
This commit is contained in:
Emilio Cobos Álvarez 2018-02-20 12:00:31 +01:00
parent 6fbf2c1e3c
commit 8c4b401dd3
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GPG key ID: 056B727BB9C1027C
8 changed files with 95 additions and 59 deletions
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10
components/style/animation.rs
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@ -285,9 +285,9 @@ impl PropertyAnimation {
match transition_property {
TransitionProperty::Unsupported(_) => result,
TransitionProperty::Shorthand(ref shorthand_id) => {
shorthand_id.longhands().iter().filter_map(|longhand| {
shorthand_id.longhands().filter_map(|longhand| {
PropertyAnimation::from_longhand(
&longhand,
longhand,
timing_function,
duration,
old_style,
@ -295,7 +295,7 @@ impl PropertyAnimation {
)
}).collect()
}
TransitionProperty::Longhand(ref longhand_id) => {
TransitionProperty::Longhand(longhand_id) => {
let animation = PropertyAnimation::from_longhand(
longhand_id,
timing_function,
@ -313,7 +313,7 @@ impl PropertyAnimation {
}
fn from_longhand(
longhand: &LonghandId,
longhand: LonghandId,
timing_function: TimingFunction,
duration: Time,
old_style: &ComputedValues,
@ -751,7 +751,7 @@ where
debug!("update_style_for_animation: scanning prop {:?} for animation \"{}\"",
property, name);
let animation = PropertyAnimation::from_longhand(
&property,
property,
timing_function,
Time::from_seconds(relative_duration as f32),
&from_style,