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use scene::{ANIMATION_PROPERTY_PATHS, ElementAnimations};
use time::MediaTime;
use crate::keyframe_query::get_keyframe_at_time;
pub const ANIMATION_PROPERTY_GROUPS: &[(&str, &[&str])] = &[(
"transform.scale",
&["transform.scaleX", "transform.scaleY"],
)];
#[derive(Clone, Debug, PartialEq)]
pub struct GroupKeyframeRef {
pub property_path: &'static str,
pub keyframe_id: String,
}
pub fn animation_property_group_paths(group: &str) -> Option<&'static [&'static str]> {
ANIMATION_PROPERTY_GROUPS
.iter()
.find(|(name, _)| *name == group)
.map(|(_, paths)| *paths)
}
pub fn get_group_keyframes_at_time(
animations: Option<&ElementAnimations>,
group: &str,
time: MediaTime,
) -> Vec<GroupKeyframeRef> {
let Some(paths) = animation_property_group_paths(group) else {
return Vec::new();
};
paths
.iter()
.filter_map(|property_path| {
get_keyframe_at_time(animations, property_path, time).map(|keyframe| {
GroupKeyframeRef {
property_path,
keyframe_id: keyframe.id,
}
})
})
.collect()
}
pub fn has_group_keyframe_at_time(
animations: Option<&ElementAnimations>,
group: &str,
time: MediaTime,
) -> bool {
!get_group_keyframes_at_time(animations, group, time).is_empty()
}
pub fn is_animation_property_path(property_path: &str) -> bool {
ANIMATION_PROPERTY_PATHS.contains(&property_path)
}
#[cfg(test)]
mod tests {
use super::*;
use scene::{
AnimationChannel, ChannelData, ScalarAnimationKey, ScalarChannel, ScalarSegmentType,
TangentMode,
};
use std::collections::BTreeMap;
#[test]
fn finds_group_keyframes_across_group_paths() {
let key = |id: &str| ScalarAnimationKey {
id: id.to_string(),
time: MediaTime::from_ticks(0),
value: 1.0,
left_handle: None,
right_handle: None,
segment_to_next: ScalarSegmentType::Linear,
tangent_mode: TangentMode::Flat,
};
let mut animations: ElementAnimations = BTreeMap::new();
animations.insert(
"transform.scaleX".to_string(),
ChannelData::Single(AnimationChannel::Scalar(ScalarChannel {
keys: vec![key("kx")],
extrapolation: None,
})),
);
let refs = get_group_keyframes_at_time(
Some(&animations),
"transform.scale",
MediaTime::from_ticks(0),
);
assert_eq!(refs.len(), 1);
assert_eq!(refs[0].property_path, "transform.scaleX");
assert!(has_group_keyframe_at_time(
Some(&animations),
"transform.scale",
MediaTime::from_ticks(0)
));
assert!(!has_group_keyframe_at_time(
Some(&animations),
"transform.scale",
MediaTime::from_ticks(10)
));
}
#[test]
fn recognizes_animation_property_paths() {
assert!(is_animation_property_path("opacity"));
assert!(is_animation_property_path("transform.rotate"));
assert!(!is_animation_property_path("params.blur"));
}
}
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