具有嵌套可排序项的jQuery动态可排序项

Question

Dynamic Sortable

Codepen Version

Description

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I have a problem with a dynamic sortable list, which elements should also be sortable. The problem is, that each element in the list is dynamic, as it will be cloned from a template div and appended to document.

Issue

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Currently the blocks (.pb-row) are sortable just as expected.
But the nested sortable for the dynamically added widgets (.builder-row-content) doesn`t work.

Only nested nodes in the first block will be draggable and are very buggy. Also i can drag them outside of the row.

Nodes from additionally added Blocks are not draggable at all.

Also i receive this message in the console

cannot call methods on sortable prior to initialization; attempted to call method 'refresh'

Code

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Html to run the sortable:

 <div class="pb-rows"> // Wrapper of all Blocks
   <div class="pb-row" name="pb-row"> // each Block
      <div class="builder-row-header">
          <span class="row-btn pb-handle fas fa-sort"></span>
           <div>Block</div>
           <span onclick="handleRemoveClick(this)" class="row-btn row-btn-right pb-remove fas fa-trash"></span>
       </div>
       <div class="pb-container">
          <div class="builder-row-content">
            // nested sortable widgets will appear here
          </div>
       </div>
   </div>
   // more .pb-rows will appear here
 </div>

Attempt for jQuery sortable list:

// jQuery Sorting Lib
jQuery(".pb-rows").sortable({
  handle: ".pb-handle",
  cursor: "grabbing",
});

// jQuery Sorting Lib
jQuery(".builder-row-content").sortable({
  connectWith: '.pb-rows
  handle: ".pb-handle-widget",
  cursor: "grabbing",
});

Attempted solution which doesnt work:

const handleAddClick = e => {
  e.preventDefault();
  ...
  jQuery(".builder-row-content").sortable("refresh");
};

Screenshot

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Screenshot of implementation

</div>

Answer 1

You need to reinitialize sortable onto dynamically added elements, so:

Wrap your sortable functions in a function

// Sorting
function enableSort() {
  // jQuery Sorting Lib
  $(".pb-rows").sortable({
    handle: ".pb-handle",
    cursor: "grabbing"
  });

  // jQuery Sorting Lib
  $(".builder-row-content").sortable({
    handle: ".pb-handle-widget",
    cursor: "grabbing"
  });
} enableSort();

Then call the function in pbCreateNode.

const pbCreateNode = (type, props, html) => {
  enableSort();
  let element = document.createElement(type);
  props &&
    props.forEach(prop => {
      let key = Object.keys(prop)[0];
      let value = prop[key];
      element.setAttribute(key, value);
    });
  html && (element.innerHTML = html);
  return element;
};