recharts
Version:
React charts
127 lines (120 loc) • 5.28 kB
JavaScript
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = exports.alpha = void 0;
var _util = require("./util");
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == typeof i ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != typeof t || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != typeof i) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
var alpha = (begin, end, k) => begin + (end - begin) * k;
exports.alpha = alpha;
var needContinue = _ref => {
var {
from,
to
} = _ref;
return from !== to;
};
/*
* @description: cal new from value and velocity in each stepper
* @return: { [styleProperty]: { from, to, velocity } }
*/
var calStepperVals = (easing, preVals, steps) => {
var nextStepVals = (0, _util.mapObject)((key, val) => {
if (needContinue(val)) {
var [newX, newV] = easing(val.from, val.to, val.velocity);
return _objectSpread(_objectSpread({}, val), {}, {
from: newX,
velocity: newV
});
}
return val;
}, preVals);
if (steps < 1) {
return (0, _util.mapObject)((key, val) => {
if (needContinue(val)) {
return _objectSpread(_objectSpread({}, val), {}, {
velocity: alpha(val.velocity, nextStepVals[key].velocity, steps),
from: alpha(val.from, nextStepVals[key].from, steps)
});
}
return val;
}, preVals);
}
return calStepperVals(easing, nextStepVals, steps - 1);
};
function createStepperUpdate(from, to, easing, interKeys, render, timeoutController) {
var preTime;
var stepperStyle = interKeys.reduce((res, key) => _objectSpread(_objectSpread({}, res), {}, {
[key]: {
from: from[key],
velocity: 0,
to: to[key]
}
}), {});
var getCurrStyle = () => (0, _util.mapObject)((key, val) => val.from, stepperStyle);
var shouldStopAnimation = () => !Object.values(stepperStyle).filter(needContinue).length;
var stopAnimation = null;
var stepperUpdate = now => {
if (!preTime) {
preTime = now;
}
var deltaTime = now - preTime;
var steps = deltaTime / easing.dt;
stepperStyle = calStepperVals(easing, stepperStyle, steps);
// get union set and add compatible prefix
render(_objectSpread(_objectSpread(_objectSpread({}, from), to), getCurrStyle()));
preTime = now;
if (!shouldStopAnimation()) {
stopAnimation = timeoutController.setTimeout(stepperUpdate);
}
};
// return start animation method
return () => {
stopAnimation = timeoutController.setTimeout(stepperUpdate);
// return stop animation method
return () => {
stopAnimation();
};
};
}
function createTimingUpdate(from, to, easing, duration, interKeys, render, timeoutController) {
var stopAnimation = null;
var timingStyle = interKeys.reduce((res, key) => _objectSpread(_objectSpread({}, res), {}, {
[key]: [from[key], to[key]]
}), {});
var beginTime;
var timingUpdate = now => {
if (!beginTime) {
beginTime = now;
}
var t = (now - beginTime) / duration;
var currStyle = (0, _util.mapObject)((key, val) => alpha(...val, easing(t)), timingStyle);
// get union set and add compatible prefix
render(_objectSpread(_objectSpread(_objectSpread({}, from), to), currStyle));
if (t < 1) {
stopAnimation = timeoutController.setTimeout(timingUpdate);
} else {
var finalStyle = (0, _util.mapObject)((key, val) => alpha(...val, easing(1)), timingStyle);
render(_objectSpread(_objectSpread(_objectSpread({}, from), to), finalStyle));
}
};
// return start animation method
return () => {
stopAnimation = timeoutController.setTimeout(timingUpdate);
// return stop animation method
return () => {
stopAnimation();
};
};
}
// configure update function
// eslint-disable-next-line import/no-default-export
var _default = (from, to, easing, duration, render, timeoutController) => {
var interKeys = (0, _util.getIntersectionKeys)(from, to);
return easing.isStepper === true ? createStepperUpdate(from, to, easing, interKeys, render, timeoutController) : createTimingUpdate(from, to, easing, duration, interKeys, render, timeoutController);
};
exports.default = _default;
;