问如何使用gridstack.js设置本地存储中的小部件数据

EN

// Initialize zurb foundation
$(document).foundation();

$(function() {
  var grid = $('.grid-stack').data('gridstack');

  var options = {
    cellHeight: 40,
    verticalMargin: 28,
    animate: false,
  };

  // Initialize grid-stack widgets
  widgetsInit = function(options) {
    $('.grid-stack').gridstack(options);
    getWidgetData(); // Find and set positions from local storage
  }

  updateVisibleWidgetHeights = function(options) {
    var targetPanel = '.tabs-panel.is-active';

    $(targetPanel + ' .grid-stack .grid-stack-item').each(function(i){
      $(targetPanel + ' .grid-stack').data('gridstack').resize(
        $(targetPanel + ' .grid-stack .grid-stack-item')[i],
        $($(targetPanel + ' .grid-stack .grid-stack-item')[i]).attr('data-gs-width'),
        Math.ceil(($(targetPanel + ' .grid-stack .grid-stack-item .grid-stack-item-content')[i].scrollHeight + $(targetPanel + ' .grid-stack').data('gridstack').opts.verticalMargin) / ($(targetPanel + ' .grid-stack').data('gridstack').cellHeight() + $(targetPanel + ' .grid-stack').data('gridstack').opts.verticalMargin))
      );
    });
  }

  updateAllWidgetHeights = function(options) {
    $('.grid-stack .grid-stack-item').each(function(i){
      $('.grid-stack').data('gridstack').resize(
        $('.grid-stack .grid-stack-item')[i],
        $($('.grid-stack .grid-stack-item')[i]).attr('data-gs-width'),
        Math.ceil(($('.grid-stack .grid-stack-item .grid-stack-item-content')[i].scrollHeight + $('.grid-stack').data('gridstack').opts.verticalMargin) / ($('.grid-stack').data('gridstack').cellHeight() + $('.grid-stack').data('gridstack').opts.verticalMargin))
      );
    });
  }

  getWidgetData = function() {
    // // Load from local storage
    var serialization = null;
    if (serialization = localStorage.getItem("grid-layout")) {
      _.each(JSON.parse(serialization), function (node) {
        // Update each widget's properties from values in storage
        $('.grid-stack-item[data-custom-id='+ node.id +']').attr({
          'data-gs-x': node.x,
          'data-gs-y': node.y,
          'data-gs-width': node.width,
          'data-gs-height': node.height,
        });
      });
    } else {
      console.log("There was no local storage data to read")
    }
  }

  widgetsInit(options);
  updateVisibleWidgetHeights();

  $('.grid-stack').on('change', function (event, items) {
    // Save data to local storage
    var res = _.map($('.grid-stack .grid-stack-item'), function (el) {
      el = $(el);
      node = el.data('_gridstack_node');
      return {
        // Grab widget properties
        id: el.attr('data-custom-id'),
        x: node.x,
        y: node.y,
        width: node.width,
        height: node.height
      };
    });
    localStorage.setItem("grid-layout", JSON.stringify(res))
  });

  // On tab change update widget heights to the height of the content they contain
  $(document).on('change.zf.tabs', function() {
    updateVisibleWidgetHeights();
  })
});

.grid-stack > .grid-stack-item > .grid-stack-item-content {
    background-color: #fff;
    cursor: move;
    border: 1px solid #e3e3e3;
    border-radius: 4px;
	padding: 1rem;
}

<link href="https://cdnjs.cloudflare.com/ajax/libs/gridstack.js/0.4.0/gridstack.min.css" rel="stylesheet"/>
<link href="https://cdnjs.cloudflare.com/ajax/libs/foundation/6.4.3/css/foundation.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.10/lodash.min.js"></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/gridstack.js/0.4.0/gridstack.min.js'></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/gridstack.js/0.4.0/gridstack.jQueryUI.min.js'></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/foundation/6.4.3/js/foundation.min.js"></script>


<ul class="tabs" data-tabs id="example-tabs" data-deep-link="true" data-update-history="true" data-match-height="false">
  <li class="tabs-title is-active"><a href="#panel1" aria-selected="true">Tab 1</a></li>
  <li class="tabs-title"><a href="#panel2">Tab 2</a></li>
</ul>

<div class="tabs-content unstyled" data-tabs-content="example-tabs">
  <div class="tabs-panel is-active" id="panel1">
    <div class="grid-stack">
      <div class="grid-stack-item" data-gs-x="0" data-gs-y="0" data-gs-width="4" data-gs-height="2">
        <div class="grid-stack-item-content">#1</div>
      </div>
      <div class="grid-stack-item" data-gs-x="4" data-gs-y="0" data-gs-width="4" data-gs-height="2">
        <div class="grid-stack-item-content">#2</div>
      </div>
      <div class="grid-stack-item" data-gs-x="8" data-gs-y="0"data-gs-width="4" data-gs-height="2">
        <div class="grid-stack-item-content">#3</div>
      </div>
    </div>
  </div>
  <div class="tabs-panel" id="panel2">
    <div class="grid-stack">
      <div class="grid-stack-item" data-gs-x="0" data-gs-y="0" data-gs-width="4" data-gs-height="2">
        <div class="grid-stack-item-content">#4</div>
      </div>
      <div class="grid-stack-item" data-gs-x="4" data-gs-y="0" data-gs-width="4" data-gs-height="2">
        <div class="grid-stack-item-content">#5</div>
      </div>
      <div class="grid-stack-item" data-gs-x="8" data-gs-y="0" data-gs-width="4" data-gs-height="2">
        <div class="grid-stack-item-content">#6</div>
      </div>
    </div>
  </div>
</div>