Function moveAddressToBack

source/colour.js:76–105

(address, route = undefined)

// Corrects a provided route too
export const moveAddressToBack = (address, route = undefined) => {
  const { colour, number } = address;
  const screen = colour.screens[number];
  removeScreenAddress(address);
  const newNumber = addScreen(colour, screen);
  const newAddress = makeAddress(colour, newNumber);
  if (route === undefined) {
    return newAddress;
  }

  const { start, steps } = route;
  let routeScreen = start;

  const newRoute = makeRoute(start);

  for (const step of steps) {
    let stepNumber = step.item;
    if (routeScreen.colour === colour) {
      if (stepNumber === number) {
        stepNumber = newNumber;
      } else if (stepNumber > number) {
        stepNumber--;
      }
    }
    addStep(newRoute, stepNumber);
    routeScreen = routeScreen.colour.screens[stepNumber];
  }

  return [newAddress, newRoute];
};

// This could be cached if a performance boost is needed
export const getColourParents = (childColour, colours) => {