Function buildParentModelLayoutRows

renderer.js:19185–19244

(displayRecords, columns, view, itemHeight, paddingVertical, verticalGap)

      const dx = ev.clientX - startX;
      let nw = startW + dx;
      nw = Math.max(def.min, Math.min(def.max, nw));
      listViewColumnState.widths[colId] = Math.round(nw);
      applyListViewColumnLayoutToGrid();
    }
    function onUp() {
      document.removeEventListener('mousemove', onMove);
      document.removeEventListener('mouseup', onUp);
      persistListViewColumnState();
    }
    document.addEventListener('mousemove', onMove);
    document.addEventListener('mouseup', onUp);
  });
  wrapEl.appendChild(handle);
}

function clearListViewColumnDropIndicators(headerInfo) {
  if (!headerInfo) return;
  headerInfo.querySelectorAll('.list-view-col-drop-before, .list-view-col-drop-after').forEach(el => {
    el.classList.remove('list-view-col-drop-before', 'list-view-col-drop-after');
  });
}

function getListViewColumnDropTarget(headerInfo, clientX, fromId) {
  const wraps = Array.from(headerInfo.children).filter(el => {
    return el.hasAttribute('data-list-col')
      && el.style.display !== 'none'
      && el.getAttribute('data-list-col') !== fromId;
  });
  if (wraps.length === 0) return null;
  for (const el of wraps) {
    const rect = el.getBoundingClientRect();
    if (clientX < rect.left + rect.width / 2) {
      return { el, id: el.getAttribute('data-list-col'), place: 'before' };
    }
  }
  const last = wraps[wraps.length - 1];
  return { el: last, id: last.getAttribute('data-list-col'), place: 'after' };
}

function reorderListViewColumn(fromId, targetId, place) {
  const state = ensureListViewColumnState();
  const current = normalizeListViewColumnOrder(state.order);
  if (fromId === targetId) return false;
  const order = current.filter(id => id !== fromId);
  let idx = order.indexOf(targetId);
  if (idx < 0) return false;
  if (place === 'after') idx += 1;
  order.splice(idx, 0, fromId);
  const unchanged = order.length === current.length && order.every((id, i) => id === current[i]);
  if (unchanged) return false;
  state.order = order;
  return true;
}

function suppressClickAfterColumnReorder(wrapEl) {
  const suppress = (e) => {
    e.preventDefault();
    e.stopImmediatePropagation();