@ohu-mobile/core
Version:
87 lines (86 loc) • 3.94 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = animate;
var _raf = _interopRequireDefault(require("raf"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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$/.test(n)) return _arrayLikeToArray(o, minLen); }
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; }
function _iterableToArrayLimit(r, l) { var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (null != t) { var e, n, i, u, a = [], f = !0, o = !1; try { if (i = (t = t.call(r)).next, 0 === l) { if (Object(t) !== t) return; f = !1; } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0); } catch (r) { o = !0, n = r; } finally { try { if (!f && null != t.return && (u = t.return(), Object(u) !== u)) return; } finally { if (o) throw n; } } return a; } }
function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
var getPropChangeFunc = function getPropChangeFunc(initProp, endPropValue, execFunc) {
return function (progress) {
var d = endPropValue - initProp;
var p = Math.abs(d) * progress;
if (d < 0) {
p = initProp - p;
}
return execFunc(p);
};
};
function animate(el, _ref) {
var timingFunction = _ref.timingFunction,
duration = _ref.duration,
done = _ref.done,
props = _ref.props;
var distanceArr = [];
if (props.width !== undefined) {
var initValue;
var endValue;
if (typeof props.width === 'number') {
var _el$getBoundingClient = el.getBoundingClientRect(),
width = _el$getBoundingClient.width;
initValue = width;
endValue = props.width;
} else {
var _props$width = _slicedToArray(props.width, 2),
i = _props$width[0],
e = _props$width[1];
initValue = i;
endValue = e;
}
distanceArr.push(getPropChangeFunc(initValue, endValue, function (value) {
el.style.width = "".concat(value, "px");
}));
}
if (props.height !== undefined) {
var _initValue;
var _endValue;
if (typeof props.height === 'number') {
var _el$getBoundingClient2 = el.getBoundingClientRect(),
height = _el$getBoundingClient2.height;
_initValue = height;
_endValue = props.height;
} else {
var _props$height = _slicedToArray(props.height, 2),
_i = _props$height[0],
_e = _props$height[1];
_initValue = _i;
_endValue = _e;
}
distanceArr.push(getPropChangeFunc(_initValue, _endValue, function (value) {
el.style.height = "".concat(value, "px");
}));
}
var currentTime = Date.now();
var tick = function tick() {
var interval = Date.now() - currentTime;
var execFunc = function execFunc() {
var distanceProgress = timingFunction(interval / duration);
distanceArr.forEach(function (func) {
func(distanceProgress);
});
};
if (interval >= duration) {
execFunc();
done && done();
return;
}
execFunc();
(0, _raf.default)(tick);
};
(0, _raf.default)(tick);
}