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import { Command, type CommandResult } from "@/lib/commands/base-command";
import type { TimelineTrack } from "@/lib/timeline";
import { EditorCore } from "@/core";
import { clampAnimationsToDuration } from "@/lib/animation";
export class UpdateElementDurationCommand extends Command {
private savedState: TimelineTrack[] | null = null;
private readonly trackId: string;
private readonly elementId: string;
private readonly duration: number;
constructor({
trackId,
elementId,
duration,
}: {
trackId: string;
elementId: string;
duration: number;
}) {
super();
this.trackId = trackId;
this.elementId = elementId;
this.duration = duration;
}
execute(): CommandResult | undefined {
const editor = EditorCore.getInstance();
this.savedState = editor.timeline.getTracks();
const updatedTracks = this.savedState.map((track) => {
if (track.id !== this.trackId) return track;
const newElements = track.elements.map((element) =>
element.id === this.elementId
? {
...element,
duration: this.duration,
animations: clampAnimationsToDuration({
animations: element.animations,
duration: this.duration,
}),
}
: element,
);
return { ...track, elements: newElements } as typeof track;
});
editor.timeline.updateTracks(updatedTracks);
return undefined;
}
undo(): void {
if (this.savedState) {
const editor = EditorCore.getInstance();
editor.timeline.updateTracks(this.savedState);
}
}
}
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