@material-ui/core/GridListTile/GridListTile.js

React components that implement Google's Material Design.

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = exports.styles = void 0;

var _extends2 = _interopRequireDefault(require("@babel/runtime/helpers/extends"));

var _objectWithoutProperties2 = _interopRequireDefault(require("@babel/runtime/helpers/objectWithoutProperties"));

var _toConsumableArray2 = _interopRequireDefault(require("@babel/runtime/helpers/toConsumableArray"));

var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));

var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));

var _possibleConstructorReturn2 = _interopRequireDefault(require("@babel/runtime/helpers/possibleConstructorReturn"));

var _getPrototypeOf2 = _interopRequireDefault(require("@babel/runtime/helpers/getPrototypeOf"));

var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));

var _react = _interopRequireDefault(require("react"));

var _propTypes = _interopRequireDefault(require("prop-types"));

var _classnames = _interopRequireDefault(require("classnames"));

var _reactEventListener = _interopRequireDefault(require("react-event-listener"));

var _debounce = _interopRequireDefault(require("debounce"));

var _utils = require("@material-ui/utils");

var _withStyles = _interopRequireDefault(require("../styles/withStyles"));

// < 1kb payload overhead when lodash/debounce is > 3kb.
var styles = {
  /* Styles applied to the root element. */
  root: {
    boxSizing: 'border-box',
    flexShrink: 0
  },

  /* Styles applied to the `div` element that wraps the children. */
  tile: {
    position: 'relative',
    display: 'block',
    // In case it's not rendered with a div.
    height: '100%',
    overflow: 'hidden'
  },

  /* Styles applied to an `img` element child, if needed to ensure it covers the tile. */
  imgFullHeight: {
    height: '100%',
    transform: 'translateX(-50%)',
    position: 'relative',
    left: '50%'
  },

  /* Styles applied to an `img` element child, if needed to ensure it covers the tile. */
  imgFullWidth: {
    width: '100%',
    position: 'relative',
    transform: 'translateY(-50%)',
    top: '50%'
  }
};
exports.styles = styles;

var GridListTile =
/*#__PURE__*/
function (_React$Component) {
  (0, _inherits2.default)(GridListTile, _React$Component);

  function GridListTile() {
    var _this;

    (0, _classCallCheck2.default)(this, GridListTile);
    _this = (0, _possibleConstructorReturn2.default)(this, (0, _getPrototypeOf2.default)(GridListTile).call(this));

    _this.fit = function () {
      var imgElement = _this.imgElement;

      if (!imgElement || !imgElement.complete) {
        return;
      }

      if (imgElement.width / imgElement.height > imgElement.parentNode.offsetWidth / imgElement.parentNode.offsetHeight) {
        var _imgElement$classList, _imgElement$classList2;

        (_imgElement$classList = imgElement.classList).remove.apply(_imgElement$classList, (0, _toConsumableArray2.default)(_this.props.classes.imgFullWidth.split(' ')));

        (_imgElement$classList2 = imgElement.classList).add.apply(_imgElement$classList2, (0, _toConsumableArray2.default)(_this.props.classes.imgFullHeight.split(' ')));
      } else {
        var _imgElement$classList3, _imgElement$classList4;

        (_imgElement$classList3 = imgElement.classList).remove.apply(_imgElement$classList3, (0, _toConsumableArray2.default)(_this.props.classes.imgFullHeight.split(' ')));

        (_imgElement$classList4 = imgElement.classList).add.apply(_imgElement$classList4, (0, _toConsumableArray2.default)(_this.props.classes.imgFullWidth.split(' ')));
      }

      imgElement.removeEventListener('load', _this.fit);
    };

    if (typeof window !== 'undefined') {
      _this.handleResize = (0, _debounce.default)(function () {
        _this.fit();
      }, 166); // Corresponds to 10 frames at 60 Hz.
    }

    return _this;
  }

  (0, _createClass2.default)(GridListTile, [{
    key: "componentDidMount",
    value: function componentDidMount() {
      this.ensureImageCover();
    }
  }, {
    key: "componentDidUpdate",
    value: function componentDidUpdate() {
      this.ensureImageCover();
    }
  }, {
    key: "componentWillUnmount",
    value: function componentWillUnmount() {
      this.handleResize.clear();
    }
  }, {
    key: "ensureImageCover",
    value: function ensureImageCover() {
      if (!this.imgElement) {
        return;
      }

      if (this.imgElement.complete) {
        this.fit();
      } else {
        this.imgElement.addEventListener('load', this.fit);
      }
    }
  }, {
    key: "render",
    value: function render() {
      var _this2 = this;

      var _this$props = this.props,
          children = _this$props.children,
          classes = _this$props.classes,
          className = _this$props.className,
          cols = _this$props.cols,
          Component = _this$props.component,
          rows = _this$props.rows,
          other = (0, _objectWithoutProperties2.default)(_this$props, ["children", "classes", "className", "cols", "component", "rows"]);
      return _react.default.createElement(Component, (0, _extends2.default)({
        className: (0, _classnames.default)(classes.root, className)
      }, other), _react.default.createElement(_reactEventListener.default, {
        target: "window",
        onResize: this.handleResize
      }), _react.default.createElement("div", {
        className: classes.tile
      }, _react.default.Children.map(children, function (child) {
        if (!_react.default.isValidElement(child)) {
          return null;
        }

        if (child.type === 'img') {
          return _react.default.cloneElement(child, {
            ref: function ref(node) {
              _this2.imgElement = node;
            }
          });
        }

        return child;
      })));
    }
  }]);
  return GridListTile;
}(_react.default.Component);

process.env.NODE_ENV !== "production" ? GridListTile.propTypes = {
  /**
   * Theoretically you can pass any node as children, but the main use case is to pass an img,
   * in which case GridListTile takes care of making the image "cover" available space
   * (similar to `background-size: cover` or to `object-fit: cover`).
   */
  children: _propTypes.default.node,

  /**
   * Override or extend the styles applied to the component.
   * See [CSS API](#css-api) below for more details.
   */
  classes: _propTypes.default.object.isRequired,

  /**
   * @ignore
   */
  className: _propTypes.default.string,

  /**
   * Width of the tile in number of grid cells.
   */
  cols: _propTypes.default.number,

  /**
   * The component used for the root node.
   * Either a string to use a DOM element or a component.
   */
  component: _utils.componentPropType,

  /**
   * Height of the tile in number of grid cells.
   */
  rows: _propTypes.default.number
} : void 0;
GridListTile.defaultProps = {
  cols: 1,
  component: 'li',
  rows: 1
};

var _default = (0, _withStyles.default)(styles, {
  name: 'MuiGridListTile'
})(GridListTile);

exports.default = _default;