249 lines
9.2 KiB
JavaScript
249 lines
9.2 KiB
JavaScript
|
var __assign = (this && this.__assign) || function () {
|
||
|
|
__assign = Object.assign || function(t) {
|
||
|
|
for (var s, i = 1, n = arguments.length; i < n; i++) {
|
||
|
|
s = arguments[i];
|
||
|
|
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
|
||
|
|
t[p] = s[p];
|
||
|
|
}
|
||
|
|
return t;
|
||
|
|
};
|
||
|
|
return __assign.apply(this, arguments);
|
||
|
|
};
|
||
|
|
// playground: stackblitz.com/edit/countup-typescript
|
||
|
|
var CountUp = /** @class */ (function () {
|
||
|
|
function CountUp(target, endVal, options) {
|
||
|
|
var _this = this;
|
||
|
|
this.target = target;
|
||
|
|
this.endVal = endVal;
|
||
|
|
this.options = options;
|
||
|
|
this.version = '2.0.4';
|
||
|
|
this.defaults = {
|
||
|
|
startVal: 0,
|
||
|
|
decimalPlaces: 0,
|
||
|
|
duration: 2,
|
||
|
|
useEasing: true,
|
||
|
|
useGrouping: true,
|
||
|
|
smartEasingThreshold: 999,
|
||
|
|
smartEasingAmount: 333,
|
||
|
|
separator: ',',
|
||
|
|
decimal: '.',
|
||
|
|
prefix: '',
|
||
|
|
suffix: ''
|
||
|
|
};
|
||
|
|
this.finalEndVal = null; // for smart easing
|
||
|
|
this.useEasing = true;
|
||
|
|
this.countDown = false;
|
||
|
|
this.error = '';
|
||
|
|
this.startVal = 0;
|
||
|
|
this.paused = true;
|
||
|
|
this.count = function (timestamp) {
|
||
|
|
if (!_this.startTime) {
|
||
|
|
_this.startTime = timestamp;
|
||
|
|
}
|
||
|
|
var progress = timestamp - _this.startTime;
|
||
|
|
_this.remaining = _this.duration - progress;
|
||
|
|
// to ease or not to ease
|
||
|
|
if (_this.useEasing) {
|
||
|
|
if (_this.countDown) {
|
||
|
|
_this.frameVal = _this.startVal - _this.easingFn(progress, 0, _this.startVal - _this.endVal, _this.duration);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
_this.frameVal = _this.easingFn(progress, _this.startVal, _this.endVal - _this.startVal, _this.duration);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if (_this.countDown) {
|
||
|
|
_this.frameVal = _this.startVal - ((_this.startVal - _this.endVal) * (progress / _this.duration));
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
_this.frameVal = _this.startVal + (_this.endVal - _this.startVal) * (progress / _this.duration);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// don't go past endVal since progress can exceed duration in the last frame
|
||
|
|
if (_this.countDown) {
|
||
|
|
_this.frameVal = (_this.frameVal < _this.endVal) ? _this.endVal : _this.frameVal;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
_this.frameVal = (_this.frameVal > _this.endVal) ? _this.endVal : _this.frameVal;
|
||
|
|
}
|
||
|
|
// decimal
|
||
|
|
_this.frameVal = Math.round(_this.frameVal * _this.decimalMult) / _this.decimalMult;
|
||
|
|
// format and print value
|
||
|
|
_this.printValue(_this.frameVal);
|
||
|
|
// whether to continue
|
||
|
|
if (progress < _this.duration) {
|
||
|
|
_this.rAF = requestAnimationFrame(_this.count);
|
||
|
|
}
|
||
|
|
else if (_this.finalEndVal !== null) {
|
||
|
|
// smart easing
|
||
|
|
_this.update(_this.finalEndVal);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if (_this.callback) {
|
||
|
|
_this.callback();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
// default format and easing functions
|
||
|
|
this.formatNumber = function (num) {
|
||
|
|
var neg = (num < 0) ? '-' : '';
|
||
|
|
var result, x, x1, x2, x3;
|
||
|
|
result = Math.abs(num).toFixed(_this.options.decimalPlaces);
|
||
|
|
result += '';
|
||
|
|
x = result.split('.');
|
||
|
|
x1 = x[0];
|
||
|
|
x2 = x.length > 1 ? _this.options.decimal + x[1] : '';
|
||
|
|
if (_this.options.useGrouping) {
|
||
|
|
x3 = '';
|
||
|
|
for (var i = 0, len = x1.length; i < len; ++i) {
|
||
|
|
if (i !== 0 && (i % 3) === 0) {
|
||
|
|
x3 = _this.options.separator + x3;
|
||
|
|
}
|
||
|
|
x3 = x1[len - i - 1] + x3;
|
||
|
|
}
|
||
|
|
x1 = x3;
|
||
|
|
}
|
||
|
|
// optional numeral substitution
|
||
|
|
if (_this.options.numerals && _this.options.numerals.length) {
|
||
|
|
x1 = x1.replace(/[0-9]/g, function (w) { return _this.options.numerals[+w]; });
|
||
|
|
x2 = x2.replace(/[0-9]/g, function (w) { return _this.options.numerals[+w]; });
|
||
|
|
}
|
||
|
|
return neg + _this.options.prefix + x1 + x2 + _this.options.suffix;
|
||
|
|
};
|
||
|
|
this.easeOutExpo = function (t, b, c, d) {
|
||
|
|
return c * (-Math.pow(2, -10 * t / d) + 1) * 1024 / 1023 + b;
|
||
|
|
};
|
||
|
|
this.options = __assign({}, this.defaults, options);
|
||
|
|
this.formattingFn = (this.options.formattingFn) ?
|
||
|
|
this.options.formattingFn : this.formatNumber;
|
||
|
|
this.easingFn = (this.options.easingFn) ?
|
||
|
|
this.options.easingFn : this.easeOutExpo;
|
||
|
|
this.startVal = this.validateValue(this.options.startVal);
|
||
|
|
this.frameVal = this.startVal;
|
||
|
|
this.endVal = this.validateValue(endVal);
|
||
|
|
this.options.decimalPlaces = Math.max(0 || this.options.decimalPlaces);
|
||
|
|
this.decimalMult = Math.pow(10, this.options.decimalPlaces);
|
||
|
|
this.resetDuration();
|
||
|
|
this.options.separator = String(this.options.separator);
|
||
|
|
this.useEasing = this.options.useEasing;
|
||
|
|
if (this.options.separator === '') {
|
||
|
|
this.options.useGrouping = false;
|
||
|
|
}
|
||
|
|
this.el = (typeof target === 'string') ? document.getElementById(target) : target;
|
||
|
|
if (this.el) {
|
||
|
|
this.printValue(this.startVal);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
this.error = '[CountUp] target is null or undefined';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// determines where easing starts and whether to count down or up
|
||
|
|
CountUp.prototype.determineDirectionAndSmartEasing = function () {
|
||
|
|
var end = (this.finalEndVal) ? this.finalEndVal : this.endVal;
|
||
|
|
this.countDown = (this.startVal > end);
|
||
|
|
var animateAmount = end - this.startVal;
|
||
|
|
if (Math.abs(animateAmount) > this.options.smartEasingThreshold) {
|
||
|
|
this.finalEndVal = end;
|
||
|
|
var up = (this.countDown) ? 1 : -1;
|
||
|
|
this.endVal = end + (up * this.options.smartEasingAmount);
|
||
|
|
this.duration = this.duration / 2;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
this.endVal = end;
|
||
|
|
this.finalEndVal = null;
|
||
|
|
}
|
||
|
|
if (this.finalEndVal) {
|
||
|
|
this.useEasing = false;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
this.useEasing = this.options.useEasing;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
// start animation
|
||
|
|
CountUp.prototype.start = function (callback) {
|
||
|
|
if (this.error) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
this.callback = callback;
|
||
|
|
if (this.duration > 0) {
|
||
|
|
this.determineDirectionAndSmartEasing();
|
||
|
|
this.paused = false;
|
||
|
|
this.rAF = requestAnimationFrame(this.count);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
this.printValue(this.endVal);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
// pause/resume animation
|
||
|
|
CountUp.prototype.pauseResume = function () {
|
||
|
|
if (!this.paused) {
|
||
|
|
cancelAnimationFrame(this.rAF);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
this.startTime = null;
|
||
|
|
this.duration = this.remaining;
|
||
|
|
this.startVal = this.frameVal;
|
||
|
|
this.determineDirectionAndSmartEasing();
|
||
|
|
this.rAF = requestAnimationFrame(this.count);
|
||
|
|
}
|
||
|
|
this.paused = !this.paused;
|
||
|
|
};
|
||
|
|
// reset to startVal so animation can be run again
|
||
|
|
CountUp.prototype.reset = function () {
|
||
|
|
cancelAnimationFrame(this.rAF);
|
||
|
|
this.paused = true;
|
||
|
|
this.resetDuration();
|
||
|
|
this.startVal = this.validateValue(this.options.startVal);
|
||
|
|
this.frameVal = this.startVal;
|
||
|
|
this.printValue(this.startVal);
|
||
|
|
};
|
||
|
|
// pass a new endVal and start animation
|
||
|
|
CountUp.prototype.update = function (newEndVal) {
|
||
|
|
cancelAnimationFrame(this.rAF);
|
||
|
|
this.startTime = null;
|
||
|
|
this.endVal = this.validateValue(newEndVal);
|
||
|
|
if (this.endVal === this.frameVal) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
this.startVal = this.frameVal;
|
||
|
|
if (!this.finalEndVal) {
|
||
|
|
this.resetDuration();
|
||
|
|
}
|
||
|
|
this.determineDirectionAndSmartEasing();
|
||
|
|
this.rAF = requestAnimationFrame(this.count);
|
||
|
|
};
|
||
|
|
CountUp.prototype.printValue = function (val) {
|
||
|
|
var result = this.formattingFn(val);
|
||
|
|
if (this.el.tagName === 'INPUT') {
|
||
|
|
var input = this.el;
|
||
|
|
input.value = result;
|
||
|
|
}
|
||
|
|
else if (this.el.tagName === 'text' || this.el.tagName === 'tspan') {
|
||
|
|
this.el.textContent = result;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
this.el.innerHTML = result;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
CountUp.prototype.ensureNumber = function (n) {
|
||
|
|
return (typeof n === 'number' && !isNaN(n));
|
||
|
|
};
|
||
|
|
CountUp.prototype.validateValue = function (value) {
|
||
|
|
var newValue = Number(value);
|
||
|
|
if (!this.ensureNumber(newValue)) {
|
||
|
|
this.error = "[CountUp] invalid start or end value: " + value;
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return newValue;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
CountUp.prototype.resetDuration = function () {
|
||
|
|
this.startTime = null;
|
||
|
|
this.duration = Number(this.options.duration) * 1000;
|
||
|
|
this.remaining = this.duration;
|
||
|
|
};
|
||
|
|
return CountUp;
|
||
|
|
}());
|
||
|
|
export { CountUp };
|