SlickGrid/examples/example-0070-plugin-state.html at 08f5dfc7d153b28c8f947da8f30d9de1c19c6f7b · 6pac/SlickGrid · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
  <link rel="shortcut icon" type="image/ico" href="favicon.ico" />
  <title>SlickGrid example: Plugin: State</title>
  <link rel="stylesheet" href="../dist/styles/css/slick.columnpicker.css" type="text/css"/>
  <link rel="stylesheet" href="../dist/styles/css/example-demo.css" type="text/css"/>
  <link rel="stylesheet" href="../dist/styles/css/slick-icons.css" type="text/css"/>
  <link rel="stylesheet" href="../dist/styles/css/slick-alpine-theme.css" type="text/css"/>
</head>
<body>
<h2 class="title">Example - Grid State Plugin</h2>
<div style="position:relative">
  <div id="gridContainer">
    <div id="myGrid" style="width:600px;height:500px;"></div>
  </div>

  <div class="options-panel">
    <h2>
      <a href="/examples/index.html" style="text-decoration: none; font-size: 22px">&#x2302;</a>
      About:
    </h2>
    <p>
      This example demonstrates using the <b>Slick.State</b> plugin persisting grid column width, order, visibility and sort order using Local Storage.
      For this demo, we use Local Storage, but you could technically save this data into a database and reload at any time your previous session.
    </p>

    <h2>Options:</h2>
    <button data-test="clear-storage" onclick="clearLocalStorage()">Clear Local Storage & Page Reload</button>
  </div>
</div>


<script src="../dist/browser/slick.core.js"></script>
<script src="../dist/browser/slick.interactions.js"></script>
<script src="../dist/browser/slick.grid.js"></script>
<script src="../dist/browser/slick.dataview.js"></script>
<script src="../dist/browser/plugins/slick.state.js"></script>
<script src="../dist/browser/controls/slick.columnpicker.js"></script>

<script id="script_tag_example" type="text/javascript">
  var grid;
  var data = [];
  var options = {
    enableColumnReorder: true,
    multiColumnSort: true,
    enableCellNavigation: true
  };
  var columns = [];

  // Set up some test columns.
  for (var i = 0; i < 10; i++) {
    columns.push({
      id: i,
      name: String.fromCharCode("A".charCodeAt(0) + i),
      field: i,
      width: 90,
      sortable: true
    });
  }

  // Set up some test data.
  for (var i = 0; i < 100; i++) {
    var d = (data[i] = {});
    d.id = i;
    for (var j = 0; j < columns.length; j++) {
      d[j] = Math.round(Math.random() * 10) - 5;
    }
  }

  function clearLocalStorage() {
    localStorage.clear();
    window.location.reload();
  }

  document.addEventListener("DOMContentLoaded", function() {
    var dataView = new Slick.Data.DataView();
    var statePersistor = new Slick.State({
      cid: 'sample-grid',
      defaultColumns: columns
    });

    statePersistor.onStateChanged.subscribe(function (e, args) {
      console.log("onStateChanged", args);
    });

    grid = new Slick.Grid("#myGrid", dataView, columns, options);
    var columnpicker = new Slick.Controls.ColumnPicker(columns, grid, options);
    columnpicker.onColumnsChanged.subscribe(function () {
      statePersistor.save();
    });

    grid.registerPlugin(statePersistor);

    dataView.onRowCountChanged.subscribe(function (e, args) {
      grid.updateRowCount();
      grid.render();
    });

    dataView.onRowsChanged.subscribe(function (e, args) {
      grid.invalidateRows(args.rows);
      grid.render();
    });

    function sortDataView(cols) {
      dataView.sort(function (dataRow1, dataRow2) {
        for (var i = 0, l = cols.length; i < l; i++) {
          if (!cols[i].sortCol) continue;
          var field = cols[i].sortCol.field;
          var sign = cols[i].sortAsc ? 1 : -1;
          var value1 = dataRow1[field], value2 = dataRow2[field];
          var result = (value1 === value2 ? 0 : (value1 > value2 ? 1 : -1)) * sign;
          if (result !== 0) {
            return result;
          }
        }
        return 0;
      });
      grid.invalidate();
      grid.render();
    }

    grid.onSort.subscribe(function (e, args) {
      sortDataView(args.sortCols);
    });

    grid.init();

    dataView.beginUpdate();
    dataView.setItems(data);
    dataView.endUpdate();

    statePersistor.restore()
      .then(function (state) {
        grid.setSortColumns(state.sortcols || []);
        var columns = grid.getColumns();
        var sortCols = (grid.getSortColumns() || []).map(function (col) {
          return {
            sortCol: columns[grid.getColumnIndex(col.columnId)],
            sortAsc: col.sortAsc
          };
        });
        sortDataView(sortCols);
      });
  });
</script>
</body>
</html>