bootstrap-vue
Version:
With more than 85 components, over 45 available plugins, several directives, and 1000+ icons, BootstrapVue provides one of the most comprehensive implementations of the Bootstrap v4 component and grid system available for Vue.js v2.6, complete with extens
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JavaScript
function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }
function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
import { mergeData } from '../../vue';
import { NAME_COL } from '../../constants/components';
import { RX_COL_CLASS } from '../../constants/regex';
import identity from '../../utils/identity';
import memoize from '../../utils/memoize';
import { arrayIncludes } from '../../utils/array';
import { getBreakpointsUpCached } from '../../utils/config';
import { isUndefinedOrNull } from '../../utils/inspect';
import { assign, create, keys } from '../../utils/object';
import { suffixPropName } from '../../utils/props';
import { lowerCase } from '../../utils/string'; // Generates a prop object with a type of `[Boolean, String, Number]`
var boolStrNum = function boolStrNum() {
return {
type: [Boolean, String, Number],
default: false
};
}; // Generates a prop object with a type of `[String, Number]`
var strNum = function strNum() {
return {
type: [String, Number],
default: null
};
}; // Compute a breakpoint class name
var computeBreakpoint = function computeBreakpoint(type, breakpoint, val) {
var className = type;
if (isUndefinedOrNull(val) || val === false) {
return undefined;
}
if (breakpoint) {
className += "-".concat(breakpoint);
} // Handling the boolean style prop when accepting [Boolean, String, Number]
// means Vue will not convert <b-col sm></b-col> to sm: true for us.
// Since the default is false, an empty string indicates the prop's presence.
if (type === 'col' && (val === '' || val === true)) {
// .col-md
return lowerCase(className);
} // .order-md-6
className += "-".concat(val);
return lowerCase(className);
}; // Memoized function for better performance on generating class names
var computeBreakpointClass = memoize(computeBreakpoint); // Cached copy of the breakpoint prop names
var breakpointPropMap = create(null); // Lazy evaled props factory for BCol
var generateProps = function generateProps() {
// Grab the breakpoints from the cached config (exclude the '' (xs) breakpoint)
var breakpoints = getBreakpointsUpCached().filter(identity); // Supports classes like: .col-sm, .col-md-6, .col-lg-auto
var breakpointCol = breakpoints.reduce(function (propMap, breakpoint) {
if (breakpoint) {
// We filter out the '' breakpoint (xs), as making a prop name ''
// would not work. The `cols` prop is used for `xs`
propMap[breakpoint] = boolStrNum();
}
return propMap;
}, create(null)); // Supports classes like: .offset-md-1, .offset-lg-12
var breakpointOffset = breakpoints.reduce(function (propMap, breakpoint) {
propMap[suffixPropName(breakpoint, 'offset')] = strNum();
return propMap;
}, create(null)); // Supports classes like: .order-md-1, .order-lg-12
var breakpointOrder = breakpoints.reduce(function (propMap, breakpoint) {
propMap[suffixPropName(breakpoint, 'order')] = strNum();
return propMap;
}, create(null)); // For loop doesn't need to check hasOwnProperty
// when using an object created from null
breakpointPropMap = assign(create(null), {
col: keys(breakpointCol),
offset: keys(breakpointOffset),
order: keys(breakpointOrder)
}); // Return the generated props
return _objectSpread(_objectSpread(_objectSpread(_objectSpread({
// Generic flexbox .col (xs)
col: {
type: Boolean,
default: false
},
// .col-[1-12]|auto (xs)
cols: strNum()
}, breakpointCol), {}, {
offset: strNum()
}, breakpointOffset), {}, {
order: strNum()
}, breakpointOrder), {}, {
// Flex alignment
alignSelf: {
type: String,
default: null,
validator: function validator(str) {
return arrayIncludes(['auto', 'start', 'end', 'center', 'baseline', 'stretch'], str);
}
},
tag: {
type: String,
default: 'div'
}
});
}; // We do not use Vue.extend here as that would evaluate the props
// immediately, which we do not want to happen
// @vue/component
export var BCol = {
name: NAME_COL,
functional: true,
get props() {
// Allow props to be lazy evaled on first access and
// then they become a non-getter afterwards.
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/get#Smart_self-overwriting_lazy_getters
delete this.props; // eslint-disable-next-line no-return-assign
return this.props = generateProps();
},
render: function render(h, _ref) {
var _classList$push;
var props = _ref.props,
data = _ref.data,
children = _ref.children;
var classList = []; // Loop through `col`, `offset`, `order` breakpoint props
for (var type in breakpointPropMap) {
// Returns colSm, offset, offsetSm, orderMd, etc.
var _keys = breakpointPropMap[type];
for (var i = 0; i < _keys.length; i++) {
// computeBreakpoint(col, colSm => Sm, value=[String, Number, Boolean])
var c = computeBreakpointClass(type, _keys[i].replace(type, ''), props[_keys[i]]); // If a class is returned, push it onto the array.
if (c) {
classList.push(c);
}
}
}
var hasColClasses = classList.some(function (className) {
return RX_COL_CLASS.test(className);
});
classList.push((_classList$push = {
// Default to .col if no other col-{bp}-* classes generated nor `cols` specified.
col: props.col || !hasColClasses && !props.cols
}, _defineProperty(_classList$push, "col-".concat(props.cols), props.cols), _defineProperty(_classList$push, "offset-".concat(props.offset), props.offset), _defineProperty(_classList$push, "order-".concat(props.order), props.order), _defineProperty(_classList$push, "align-self-".concat(props.alignSelf), props.alignSelf), _classList$push));
return h(props.tag, mergeData(data, {
class: classList
}), children);
}
};