source/library/state/keyboard.ts


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/*** EXPORT ------------------------------------------- ***/

export type ShortcutAction =
  | { type: "closeTab" }
  | { type: "format" }
  | { type: "newTab" }
  | { type: "nextTab" }
  | { type: "prevTab" }
  | { type: "run" };

export function matchShortcut(event: KeyboardEvent): ShortcutAction | null {
  const meta = event.metaKey || event.ctrlKey;

  if (!meta)
    return null;

  if (event.key === "Enter") {
    if (event.shiftKey)
      return { type: "newTab" };

    if (!event.altKey)
      return { type: "run" };

    return null;
  }

  if (event.shiftKey && !event.altKey) {
    const key = event.key.toLowerCase();

    if (key === "w")
      return { type: "closeTab" };

    if (key === "f")
      return { type: "format" };
  }

  if (event.altKey && !event.shiftKey) {
    if (event.key === "ArrowRight")
      return { type: "nextTab" };

    if (event.key === "ArrowLeft")
      return { type: "prevTab" };
  }

  return null;
}