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