bootstrap-vue/esm/components/aspect/aspect.js

BootstrapVue, with more than 85 custom components, over 45 plugins, several custom directives, and over 300 icons, provides one of the most comprehensive implementations of Bootstrap v4 components and grid system for Vue.js. With extensive and automated W

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _iterableToArrayLimit(arr, i) { if (typeof Symbol === "undefined" || !(Symbol.iterator in Object(arr))) return; var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

import Vue from '../../utils/vue';
import { mathAbs } from '../../utils/math';
import { toFloat } from '../../utils/number';
import normalizeSlotMixin from '../../mixins/normalize-slot'; // --- Constants ---

var NAME = 'BAspect';
var CLASS_NAME = 'b-aspect';
var RX_ASPECT = /^\d+(\.\d*)?[/:]\d+(\.\d*)?$/;
var RX_SEPARATOR = /[/:]/; // --- Main Component ---

export var BAspect = /*#__PURE__*/Vue.extend({
  name: NAME,
  mixins: [normalizeSlotMixin],
  props: {
    aspect: {
      // Accepts a number (i.e. `16 / 9`, `1`, `4 / 3`)
      // Or a string (i.e. '16/9', '16:9', '4:3' '1:1')
      type: [Number, String],
      default: '1:1'
    },
    tag: {
      type: String,
      default: 'div'
    }
  },
  computed: {
    padding: function padding() {
      var aspect = this.aspect;
      var ratio = 1;

      if (RX_ASPECT.test(aspect)) {
        // Width and/or Height can be a decimal value below `1`, so
        // we only fallback to `1` if the value is `0` or `NaN`
        var _aspect$split$map = aspect.split(RX_SEPARATOR).map(function (v) {
          return toFloat(v) || 1;
        }),
            _aspect$split$map2 = _slicedToArray(_aspect$split$map, 2),
            width = _aspect$split$map2[0],
            height = _aspect$split$map2[1];

        ratio = width / height;
      } else {
        ratio = toFloat(aspect) || 1;
      }

      return "".concat(100 / mathAbs(ratio), "%");
    }
  },
  render: function render(h) {
    var $sizer = h('div', {
      staticClass: "".concat(CLASS_NAME, "-sizer flex-grow-1"),
      style: {
        paddingBottom: this.padding,
        height: 0
      }
    });
    var $content = h('div', {
      staticClass: "".concat(CLASS_NAME, "-content flex-grow-1 w-100 mw-100"),
      style: {
        marginLeft: '-100%'
      }
    }, [this.normalizeSlot('default')]);
    return h(this.tag, {
      staticClass: "".concat(CLASS_NAME, " d-flex")
    }, [$sizer, $content]);
  }
});