OpenCut/apps/web/src/lib/commands/timeline/element/keyframes/upsert-keyframe.ts

90 lines
2.3 KiB
TypeScript

import { EditorCore } from "@/core";
import { Command } from "@/lib/commands/base-command";
import { supportsAnimationProperty, upsertElementKeyframe } from "@/lib/animation";
import { updateElementInTracks } from "@/lib/timeline";
import type { TimelineTrack } from "@/types/timeline";
import type {
AnimationInterpolation,
AnimationPropertyPath,
AnimationValue,
} from "@/types/animation";
export class UpsertKeyframeCommand extends Command {
private savedState: TimelineTrack[] | null = null;
private readonly trackId: string;
private readonly elementId: string;
private readonly propertyPath: AnimationPropertyPath;
private readonly time: number;
private readonly value: AnimationValue;
private readonly interpolation: AnimationInterpolation | undefined;
private readonly keyframeId: string | undefined;
constructor({
trackId,
elementId,
propertyPath,
time,
value,
interpolation,
keyframeId,
}: {
trackId: string;
elementId: string;
propertyPath: AnimationPropertyPath;
time: number;
value: AnimationValue;
interpolation?: AnimationInterpolation;
keyframeId?: string;
}) {
super();
this.trackId = trackId;
this.elementId = elementId;
this.propertyPath = propertyPath;
this.time = time;
this.value = value;
this.interpolation = interpolation;
this.keyframeId = keyframeId;
}
execute(): void {
const editor = EditorCore.getInstance();
this.savedState = editor.timeline.getTracks();
const updatedTracks = updateElementInTracks({
tracks: this.savedState,
trackId: this.trackId,
elementId: this.elementId,
elementPredicate: (element) =>
supportsAnimationProperty({
element,
propertyPath: this.propertyPath,
}),
update: (element) => {
const boundedTime = Math.max(0, Math.min(this.time, element.duration));
return {
...element,
animations: upsertElementKeyframe({
animations: element.animations,
propertyPath: this.propertyPath,
time: boundedTime,
value: this.value,
interpolation: this.interpolation,
keyframeId: this.keyframeId,
}),
};
},
});
editor.timeline.updateTracks(updatedTracks);
}
undo(): void {
if (!this.savedState) {
return;
}
const editor = EditorCore.getInstance();
editor.timeline.updateTracks(this.savedState);
}
}