Function compact

src/helpers/utils.js:81–109

(layout: Layout, verticalCompact: Boolean, minPositions)

 * @return {Array}       Compacted Layout.
 */
export function compact(layout: Layout, verticalCompact: Boolean, minPositions): Layout {
    // Statics go in the compareWith array right away so items flow around them.
  const compareWith = getStatics(layout);
  // We go through the items by row and column.
  const sorted = sortLayoutItemsByRowCol(layout);
  // Holding for new items.
  const out = Array(layout.length);

  for (let i = 0, len = sorted.length; i < len; i++) {
    let l = sorted[i];

    // Don't move static elements
    if (!l.static) {
      l = compactItem(compareWith, l, verticalCompact, minPositions);

      // Add to comparison array. We only collide with items before this one.
      // Statics are already in this array.
      compareWith.push(l);
    }

    // Add to output array to make sure they still come out in the right order.
    out[layout.indexOf(l)] = l;

    // Clear moved flag, if it exists.
    l.moved = false;
  }

  return out;
}

/**
 * Compact an item in the layout.