carbon-components/es/components/tile/tile.js

Carbon Components is a component library for IBM Cloud

function _typeof(obj) {
  if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
    _typeof = function _typeof(obj) {
      return typeof obj;
    };
  } else {
    _typeof = function _typeof(obj) {
      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
    };
  }

  return _typeof(obj);
}

function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

function _possibleConstructorReturn(self, call) {
  if (call && (_typeof(call) === "object" || typeof call === "function")) {
    return call;
  }

  return _assertThisInitialized(self);
}

function _assertThisInitialized(self) {
  if (self === void 0) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }

  return self;
}

function _get(target, property, receiver) {
  if (typeof Reflect !== "undefined" && Reflect.get) {
    _get = Reflect.get;
  } else {
    _get = function _get(target, property, receiver) {
      var base = _superPropBase(target, property);

      if (!base) return;
      var desc = Object.getOwnPropertyDescriptor(base, property);

      if (desc.get) {
        return desc.get.call(receiver);
      }

      return desc.value;
    };
  }

  return _get(target, property, receiver || target);
}

function _superPropBase(object, property) {
  while (!Object.prototype.hasOwnProperty.call(object, property)) {
    object = _getPrototypeOf(object);
    if (object === null) break;
  }

  return object;
}

function _getPrototypeOf(o) {
  _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
    return o.__proto__ || Object.getPrototypeOf(o);
  };
  return _getPrototypeOf(o);
}

function _inherits(subClass, superClass) {
  if (typeof superClass !== "function" && superClass !== null) {
    throw new TypeError("Super expression must either be null or a function");
  }

  subClass.prototype = Object.create(superClass && superClass.prototype, {
    constructor: {
      value: subClass,
      writable: true,
      configurable: true
    }
  });
  if (superClass) _setPrototypeOf(subClass, superClass);
}

function _setPrototypeOf(o, p) {
  _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
    o.__proto__ = p;
    return o;
  };

  return _setPrototypeOf(o, p);
}
/**
 * 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 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 eventMatches from '../../globals/js/misc/event-matches';

var Tile =
/*#__PURE__*/
function (_mixin) {
  _inherits(Tile, _mixin);
  /**
   * Tile.
   * @extends CreateComponent
   * @extends InitComponentBySearch
   * @param {HTMLElement} element The element working as an Tile.
   */


  function Tile(element, options) {
    var _this;

    _classCallCheck(this, Tile);

    _this = _possibleConstructorReturn(this, _getPrototypeOf(Tile).call(this, element, options));

    _this._getClass = function (type) {
      var typeObj = {
        expandable: _this.options.classExpandedTile,
        clickable: _this.options.classClickableTile,
        selectable: _this.options.classSelectableTile
      };
      return typeObj[type];
    };

    _this._hookActions = function (tileClass) {
      var isExpandable = _this.tileType === 'expandable';

      if (isExpandable) {
        var aboveTheFold = _this.element.querySelector(_this.options.selectorAboveTheFold);

        var getStyle = _this.element.ownerDocument.defaultView.getComputedStyle(_this.element, null);

        var tilePaddingTop = parseInt(getStyle.getPropertyValue('padding-top'), 10);
        var tilePaddingBottom = parseInt(getStyle.getPropertyValue('padding-bottom'), 10);
        var tilePadding = tilePaddingTop + tilePaddingBottom;

        if (aboveTheFold) {
          _this.tileHeight = _this.element.getBoundingClientRect().height;
          _this.atfHeight = aboveTheFold.getBoundingClientRect().height + tilePadding;
          _this.element.style.maxHeight = "".concat(_this.atfHeight, "px");
        }

        if (_this.element.classList.contains(_this.options.classExpandedTile)) {
          _this._setTileHeight();
        }
      }

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

        if (!input) {
          _this.element.classList.toggle(tileClass);
        }

        if (isExpandable) {
          _this._setTileHeight();
        }
      });

      _this.element.addEventListener('keydown', function (evt) {
        var input = _this.element.querySelector(_this.options.selectorTileInput);

        if (input) {
          if (evt.which === 13 || evt.which === 32) {
            if (!isExpandable) {
              _this.element.classList.toggle(tileClass);

              input.checked = !input.checked;
            }
          }
        }
      });
    };

    _this._setTileHeight = function () {
      var isExpanded = _this.element.classList.contains(_this.options.classExpandedTile);

      _this.element.style.maxHeight = isExpanded ? "".concat(_this.tileHeight, "px") : "".concat(_this.atfHeight, "px");
    };

    _this.tileType = _this.element.dataset.tile;
    _this.tileHeight = 0; // Tracks expandable tile height

    _this.atfHeight = 0; // Tracks above the fold height

    _this._hookActions(_this._getClass(_this.tileType));

    return _this;
  }

  _createClass(Tile, [{
    key: "release",
    value: function release() {
      _get(_getPrototypeOf(Tile.prototype), "release", this).call(this);
    }
    /**
     * The map associating DOM element and Tile UI instance.
     * @type {WeakMap}
     */

  }], [{
    key: "options",

    /**
     * The component options.
     * If `options` is specified in the constructor,
     * properties in this object are overriden for the instance being created.
     * @property {string} selectorInit The CSS selector to find Tile instances.
     */
    get: function get() {
      var prefix = settings.prefix;
      return {
        selectorInit: '[data-tile]',
        selectorAboveTheFold: '[data-tile-atf]',
        selectorTileInput: '[data-tile-input]',
        classExpandedTile: "".concat(prefix, "--tile--is-expanded"),
        classClickableTile: "".concat(prefix, "--tile--is-clicked"),
        classSelectableTile: "".concat(prefix, "--tile--is-selected")
      };
    }
  }]);

  Tile.components = new WeakMap();
  return Tile;
}(mixin(createComponent, initComponentBySearch));

export default Tile;