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import { Command } from "@/lib/commands/base-command";
import type { TimelineTrack } from "@/lib/timeline";
import { canElementBeHidden } from "@/lib/timeline/element-utils";
import { EditorCore } from "@/core";
export class ToggleElementsVisibilityCommand extends Command {
private savedState: TimelineTrack[] | null = null;
constructor(private elements: { trackId: string; elementId: string }[]) {
super();
}
execute(): void {
const editor = EditorCore.getInstance();
this.savedState = editor.timeline.getTracks();
const shouldHide = this.elements.some(({ trackId, elementId }) => {
const track = this.savedState?.find((t) => t.id === trackId);
const element = track?.elements.find((e) => e.id === elementId);
return element && canElementBeHidden(element) && !element.hidden;
});
const updatedTracks = this.savedState.map((track) => {
const newElements = track.elements.map((element) => {
const shouldUpdate = this.elements.some(
({ trackId, elementId }) =>
track.id === trackId && element.id === elementId,
);
return shouldUpdate &&
canElementBeHidden(element) &&
element.hidden !== shouldHide
? { ...element, hidden: shouldHide }
: element;
});
return { ...track, elements: newElements } as typeof track;
});
editor.timeline.updateTracks(updatedTracks);
}
undo(): void {
if (this.savedState) {
const editor = EditorCore.getInstance();
editor.timeline.updateTracks(this.savedState);
}
}
}
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