Function compactItemHorizontal

src/core/compactors.ts:131–164

(
  compareWith: Layout,
  l: LayoutItem,
  cols: number,
  fullLayout: Layout
)

 * @returns The compacted item
 */
export function compactItemHorizontal(
  compareWith: Layout,
  l: LayoutItem,
  cols: number,
  fullLayout: Layout
): LayoutItem {
  // Correct negative positions first
  (l as Mutable<LayoutItem>).x = Math.max(l.x, 0);
  (l as Mutable<LayoutItem>).y = Math.max(l.y, 0);

  // Move left as far as possible
  while (l.x > 0 && !getFirstCollision(compareWith, l)) {
    (l as Mutable<LayoutItem>).x--;
  }

  // Resolve collisions
  let collision: LayoutItem | undefined;
  while ((collision = getFirstCollision(compareWith, l)) !== undefined) {
    resolveCompactionCollision(fullLayout, l, collision.x + collision.w, "x");

    // Horizontal overflow: wrap to next row
    if (l.x + l.w > cols) {
      (l as Mutable<LayoutItem>).x = cols - l.w;
      (l as Mutable<LayoutItem>).y++;

      while (l.x > 0 && !getFirstCollision(compareWith, l)) {
        (l as Mutable<LayoutItem>).x--;
      }
    }
  }

  (l as Mutable<LayoutItem>).x = Math.max(l.x, 0);
  return l;
}

// ============================================================================
// Vertical Compactor