Method broadcastSource

src/actions/BringMoveSwap.ts:50–60

(
    sources: TypedSelection[],
    destinations: TypedSelection[]
  )

  }

  private broadcastSource(
    sources: TypedSelection[],
    destinations: TypedSelection[]
  ) {
    if (sources.length === 1 && this.type !== "swap") {
      // If there is only one source target, expand it to same length as
      // destination target
      return Array(destinations.length).fill(sources[0]);
    }
    return sources;
  }

  private getDecorationStyles() {
    let sourceStyle;