carbon-components/es/components/data-table-v2/data-table-v2.js

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/**
 * Copyright IBM Corp. 2016, 2018
 *
 * This source code is licensed under the Apache-2.0 license found in the
 * LICENSE file in the root directory of this source tree.
 */


import { componentsX } from '../../globals/js/feature-flags';
import settings from '../../globals/js/settings';
import mixin from '../../globals/js/misc/mixin';
import createComponent from '../../globals/js/mixins/create-component';
import initComponentBySearch from '../../globals/js/mixins/init-component-by-search';
import eventedState from '../../globals/js/mixins/evented-state';
import eventMatches from '../../globals/js/misc/event-matches';

var toArray = function toArray(arrayLike) {
  return Array.prototype.slice.call(arrayLike);
};

var suffix = componentsX ? '' : '-v2';

var DataTableV2 =
/*#__PURE__*/
function (_mixin) {
  _inherits(DataTableV2, _mixin);
  /**
   * Data Table
   * @extends CreateComponent
   * @extends InitComponentBySearch
   * @extends   EventedState
   * @param {HTMLElement} element The root element of tables
   * @param {Object} [options] the... options
   * @param {string} [options.selectorInit] selector initialization
   * @param {string} [options.selectorExpandCells] css selector for expand
   * @param {string} [options.expandableRow] css selector for expand
   * @param {string} [options.selectorParentRows] css selector for rows housing expansion
   * @param {string} [options.selectorTableBody] root css for table body
   * @param {string} [options.eventTrigger] selector for event bubble capture points
   * @param {string} [options.eventParentContainer] used find the bubble container
   */


  function DataTableV2(_element, options) {
    var _this;

    _classCallCheck(this, DataTableV2);

    _this = _possibleConstructorReturn(this, _getPrototypeOf(DataTableV2).call(this, _element, options));

    _this._sortToggle = function (detail) {
      var element = detail.element,
          previousValue = detail.previousValue;
      toArray(_this.tableHeaders).forEach(function (header) {
        var sortEl = header.querySelector(_this.options.selectorTableSort);

        if (sortEl !== null && sortEl !== element) {
          sortEl.classList.remove(_this.options.classTableSortActive);
          sortEl.classList.remove(_this.options.classTableSortAscending);
        }
      });

      if (!previousValue) {
        element.dataset.previousValue = 'ascending';
        element.classList.add(_this.options.classTableSortActive);
        element.classList.add(_this.options.classTableSortAscending);
      } else if (previousValue === 'ascending') {
        element.dataset.previousValue = 'descending';
        element.classList.add(_this.options.classTableSortActive);
        element.classList.remove(_this.options.classTableSortAscending);
      } else if (previousValue === 'descending') {
        element.removeAttribute('data-previous-value');
        element.classList.remove(_this.options.classTableSortActive);
        element.classList.remove(_this.options.classTableSortAscending);
      }
    };

    _this._selectToggle = function (detail) {
      var element = detail.element;
      var checked = element.checked; // increment the  count

      _this.state.checkboxCount += checked ? 1 : -1;
      _this.countEl.textContent = _this.state.checkboxCount;
      var row = element.parentNode.parentNode;
      row.classList.toggle(_this.options.classTableSelected); // toggle on/off batch action bar

      _this._actionBarToggle(_this.state.checkboxCount > 0);
    };

    _this._selectAllToggle = function (_ref) {
      var element = _ref.element;
      var checked = element.checked;
      var inputs = toArray(_this.element.querySelectorAll(_this.options.selectorCheckbox));
      _this.state.checkboxCount = checked ? inputs.length - 1 : 0;
      inputs.forEach(function (item) {
        item.checked = checked;
        var row = item.parentNode.parentNode;

        if (checked && row) {
          row.classList.add(_this.options.classTableSelected);
        } else {
          row.classList.remove(_this.options.classTableSelected);
        }
      });

      _this._actionBarToggle(_this.state.checkboxCount > 0);

      if (_this.batchActionEl) {
        _this.countEl.textContent = _this.state.checkboxCount;
      }
    };

    _this._actionBarCancel = function () {
      var inputs = toArray(_this.element.querySelectorAll(_this.options.selectorCheckbox));
      var row = toArray(_this.element.querySelectorAll(_this.options.selectorTableSelected));
      row.forEach(function (item) {
        item.classList.remove(_this.options.classTableSelected);
      });
      inputs.forEach(function (item) {
        item.checked = false;
      });
      _this.state.checkboxCount = 0;

      _this._actionBarToggle(false);

      if (_this.batchActionEl) {
        _this.countEl.textContent = _this.state.checkboxCount;
      }
    };

    _this._actionBarToggle = function (toggleOn) {
      var transition = function transition(evt) {
        _this.batchActionEl.removeEventListener('transitionend', transition);

        if (evt.target.matches(_this.options.selectorActions)) {
          if (_this.batchActionEl.dataset.active === 'false') {
            _this.batchActionEl.setAttribute('tabIndex', -1);
          } else {
            _this.batchActionEl.setAttribute('tabIndex', 0);
          }
        }
      };

      if (toggleOn) {
        _this.batchActionEl.dataset.active = true;

        _this.batchActionEl.classList.add(_this.options.classActionBarActive);
      } else if (_this.batchActionEl) {
        _this.batchActionEl.dataset.active = false;

        _this.batchActionEl.classList.remove(_this.options.classActionBarActive);
      }

      if (_this.batchActionEl) {
        _this.batchActionEl.addEventListener('transitionend', transition);
      }
    };

    _this._expandableRowsInit = function (expandableRows) {
      expandableRows.forEach(function (item) {
        if (!componentsX) {
          item.classList.remove(_this.options.classExpandableRowHidden);

          _this.tableBody.removeChild(item);
        }
      });
    };

    _this._rowExpandToggle = function (_ref2) {
      var element = _ref2.element,
          initialEvt = _ref2.initialEvt;
      var parent = eventMatches(initialEvt, _this.options.eventParentContainer);

      var index = _this.expandCells.indexOf(element);

      if (element.dataset.previousValue === undefined || element.dataset.previousValue === 'expanded') {
        element.dataset.previousValue = 'collapsed';
        parent.classList.add(_this.options.classExpandableRow);

        if (!componentsX) {
          _this.tableBody.insertBefore(_this.expandableRows[index], _this.parentRows[index + 1]);
        }
      } else {
        parent.classList.remove(_this.options.classExpandableRow);

        if (!componentsX) {
          _this.tableBody.removeChild(parent.nextElementSibling);
        }

        element.dataset.previousValue = 'expanded';
      }
    };

    _this._expandableHoverToggle = function (element) {
      element.previousElementSibling.classList.add(_this.options.classExpandableRowHover);

      var mouseout = function mouseout() {
        element.previousElementSibling.classList.remove(_this.options.classExpandableRowHover);
        element.removeEventListener('mouseout', mouseout);
      };

      element.addEventListener('mouseout', mouseout);
    };

    _this._toggleState = function (element, evt) {
      var data = element.dataset;
      var label = data.label ? data.label : '';
      var previousValue = data.previousValue ? data.previousValue : '';
      var initialEvt = evt;

      _this.changeState({
        group: data.event,
        element: element,
        label: label,
        previousValue: previousValue,
        initialEvt: initialEvt
      });
    };

    _this._keydownHandler = function (evt) {
      var searchContainer = _this.element.querySelector(_this.options.selectorToolbarSearchContainer);

      var searchEvent = eventMatches(evt, _this.options.selectorSearchMagnifier);
      var activeSearch = searchContainer.classList.contains(_this.options.classToolbarSearchActive);

      if (evt.which === 27) {
        _this._actionBarCancel();
      }

      if (searchContainer && searchEvent && evt.which === 13) {
        _this.activateSearch(searchContainer);
      }

      if (activeSearch && evt.which === 27) {
        _this.deactivateSearch(searchContainer, evt);
      }
    };

    _this.refreshRows = function () {
      var newExpandCells = toArray(_this.element.querySelectorAll(_this.options.selectorExpandCells));
      var newExpandableRows = toArray(_this.element.querySelectorAll(_this.options.selectorExpandableRows));
      var newParentRows = toArray(_this.element.querySelectorAll(_this.options.selectorParentRows)); // check if this is a refresh or the first time

      if (_this.parentRows.length > 0) {
        var diffParentRows = newParentRows.filter(function (newRow) {
          return !_this.parentRows.some(function (oldRow) {
            return oldRow === newRow;
          });
        }); // check if there are expandable rows

        if (newExpandableRows.length > 0) {
          var diffExpandableRows = diffParentRows.map(function (newRow) {
            return newRow.nextElementSibling;
          });
          var mergedExpandableRows = [].concat(_toConsumableArray(toArray(_this.expandableRows)), _toConsumableArray(toArray(diffExpandableRows)));

          _this._expandableRowsInit(diffExpandableRows);

          _this.expandableRows = mergedExpandableRows;
        }
      } else if (newExpandableRows.length > 0) {
        _this._expandableRowsInit(newExpandableRows);

        _this.expandableRows = newExpandableRows;
      }

      _this.expandCells = newExpandCells;
      _this.parentRows = newParentRows;
    };

    _this.container = _element.parentNode;
    _this.toolbarEl = _this.element.querySelector(_this.options.selectorToolbar);
    _this.batchActionEl = _this.element.querySelector(_this.options.selectorActions);
    _this.countEl = _this.element.querySelector(_this.options.selectorCount);
    _this.cancelEl = _this.element.querySelector(_this.options.selectorActionCancel);
    _this.tableHeaders = _this.element.querySelectorAll('th');
    _this.tableBody = _this.element.querySelector(_this.options.selectorTableBody);
    _this.expandCells = [];
    _this.expandableRows = [];
    _this.parentRows = [];

    _this.refreshRows();

    _this.element.addEventListener('mouseover', function (evt) {
      var eventElement = eventMatches(evt, _this.options.selectorChildRow);

      if (eventElement) {
        _this._expandableHoverToggle(eventElement, true);
      }
    });

    _this.element.addEventListener('click', function (evt) {
      var eventElement = eventMatches(evt, _this.options.eventTrigger);

      var searchContainer = _this.element.querySelector(_this.options.selectorToolbarSearchContainer);

      if (eventElement) {
        _this._toggleState(eventElement, evt);
      }

      if (componentsX && searchContainer) {
        _this._handleDocumentClick(evt);
      }
    });

    _this.element.addEventListener('keydown', _this._keydownHandler);

    _this.state = {
      checkboxCount: 0
    };
    return _this;
  }

  _createClass(DataTableV2, [{
    key: "_handleDocumentClick",
    value: function _handleDocumentClick(evt) {
      var searchContainer = this.element.querySelector(this.options.selectorToolbarSearchContainer);
      var searchEvent = eventMatches(evt, this.options.selectorSearchMagnifier);
      var activeSearch = searchContainer.classList.contains(this.options.classToolbarSearchActive);

      if (searchContainer && searchEvent) {
        this.activateSearch(searchContainer);
      }

      if (activeSearch) {
        this.deactivateSearch(searchContainer, evt);
      }
    }
  }, {
    key: "activateSearch",
    value: function activateSearch(container) {
      var input = container.querySelector(this.options.selectorSearchInput);
      container.classList.add(this.options.classToolbarSearchActive);
      input.focus();
    }
  }, {
    key: "deactivateSearch",
    value: function deactivateSearch(container, evt) {
      var trigger = container.querySelector(this.options.selectorSearchMagnifier);
      var input = container.querySelector(this.options.selectorSearchInput);
      var svg = trigger.querySelector('svg');

      if (input.value.length === 0 && evt.target !== input && evt.target !== trigger && evt.target !== svg) {
        container.classList.remove(this.options.classToolbarSearchActive);
        trigger.focus();
      }

      if (evt.which === 27 && evt.target === input) {
        container.classList.remove(this.options.classToolbarSearchActive);
        trigger.focus();
      }
    }
  }, {
    key: "_changeState",
    value: function _changeState(detail, callback) {
      this[this.constructor.eventHandlers[detail.group]](detail);
      callback();
    }
  }], [{
    key: "options",
    get: function get() {
      var prefix = settings.prefix;
      return {
        selectorInit: "[data-table".concat(suffix, "]"),
        selectorToolbar: ".".concat(prefix, "--table--toolbar"),
        selectorActions: ".".concat(prefix, "--batch-actions"),
        selectorCount: '[data-items-selected]',
        selectorActionCancel: ".".concat(prefix, "--batch-summary__cancel"),
        selectorCheckbox: ".".concat(prefix, "--checkbox"),
        selectorExpandCells: "td.".concat(prefix, "--table-expand").concat(suffix),
        selectorExpandableRows: ".".concat(prefix, "--expandable-row").concat(suffix),
        selectorParentRows: ".".concat(prefix, "--parent-row").concat(suffix),
        selectorChildRow: '[data-child-row]',
        selectorTableBody: 'tbody',
        selectorTableSort: ".".concat(prefix, "--table-sort").concat(suffix),
        selectorTableSelected: ".".concat(prefix, "--data-table").concat(suffix, "--selected"),
        selectorToolbarSearchContainer: ".".concat(prefix, "--toolbar-search-container-expandable"),
        selectorSearchMagnifier: ".".concat(prefix, "--search-magnifier"),
        selectorSearchInput: ".".concat(prefix, "--search-input"),
        classExpandableRow: "".concat(prefix, "--expandable-row").concat(suffix),
        classExpandableRowHidden: "".concat(prefix, "--expandable-row--hidden").concat(suffix),
        classExpandableRowHover: "".concat(prefix, "--expandable-row--hover").concat(suffix),
        classTableSortAscending: "".concat(prefix, "--table-sort").concat(suffix, "--ascending"),
        classTableSortActive: "".concat(prefix, "--table-sort").concat(suffix, "--active"),
        classToolbarSearchActive: "".concat(prefix, "--toolbar-search-container-active"),
        classActionBarActive: "".concat(prefix, "--batch-actions--active"),
        classTableSelected: "".concat(prefix, "--data-table").concat(suffix, "--selected"),
        eventBeforeExpand: "data-table".concat(suffix, "-beforetoggleexpand"),
        eventAfterExpand: "data-table".concat(suffix, "-aftertoggleexpand"),
        eventBeforeSort: "data-table".concat(suffix, "-beforetogglesort"),
        eventAfterSort: "data-table".concat(suffix, "-aftertogglesort"),
        eventTrigger: '[data-event]',
        eventParentContainer: '[data-parent-row]'
      };
    }
  }]);

  DataTableV2.components = new WeakMap();
  DataTableV2.eventHandlers = {
    expand: '_rowExpandToggle',
    sort: '_sortToggle',
    select: '_selectToggle',
    'select-all': '_selectAllToggle',
    'action-bar-cancel': '_actionBarCancel'
  };
  return DataTableV2;
}(mixin(createComponent, initComponentBySearch, eventedState));

export default DataTableV2;