@tamagui/react-native-web-lite
Version:
React Native for Web
95 lines (94 loc) • 3.01 kB
JavaScript
"use strict";
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
for (var name in all) __defProp(target, name, {
get: all[name],
enumerable: true
});
};
var __copyProps = (to, from, except, desc) => {
if (from && typeof from === "object" || typeof from === "function") {
for (let key of __getOwnPropNames(from)) if (!__hasOwnProp.call(to, key) && key !== except) __defProp(to, key, {
get: () => from[key],
enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable
});
}
return to;
};
var __toCommonJS = mod => __copyProps(__defProp({}, "__esModule", {
value: true
}), mod);
var DecayAnimation_exports = {};
__export(DecayAnimation_exports, {
DecayAnimation: () => DecayAnimation,
default: () => DecayAnimation_default
});
module.exports = __toCommonJS(DecayAnimation_exports);
var import_Animation = require("./Animation.cjs");
var import_NativeAnimatedHelper = require("../NativeAnimatedHelper.cjs");
class DecayAnimation extends import_Animation.Animation {
_startTime;
_lastValue;
_fromValue;
_deceleration;
_velocity;
_onUpdate;
_animationFrame;
_useNativeDriver;
constructor(config) {
super();
this._deceleration = config.deceleration ?? 0.998;
this._velocity = config.velocity;
this._useNativeDriver = (0, import_NativeAnimatedHelper.shouldUseNativeDriver)(config);
this.__isInteraction = config.isInteraction ?? !this._useNativeDriver;
this.__iterations = config.iterations ?? 1;
}
__getNativeAnimationConfig() {
return {
type: "decay",
deceleration: this._deceleration,
velocity: this._velocity,
iterations: this.__iterations
};
}
start(fromValue, onUpdate, onEnd, previousAnimation, animatedValue) {
this.__active = true;
this._lastValue = fromValue;
this._fromValue = fromValue;
this._onUpdate = onUpdate;
this.__onEnd = onEnd;
this._startTime = Date.now();
if (this._useNativeDriver) {
this.__startNativeAnimation(animatedValue);
} else {
this._animationFrame = requestAnimationFrame(this.onUpdate.bind(this));
}
}
onUpdate() {
const now = Date.now();
const value = this._fromValue + this._velocity / (1 - this._deceleration) * (1 - Math.exp(-(1 - this._deceleration) * (now - this._startTime)));
this._onUpdate(value);
if (Math.abs(this._lastValue - value) < 0.1) {
this.__debouncedOnEnd({
finished: true
});
return;
}
this._lastValue = value;
if (this.__active) {
this._animationFrame = requestAnimationFrame(this.onUpdate.bind(this));
}
}
stop() {
super.stop();
this.__active = false;
global.cancelAnimationFrame(this._animationFrame);
this.__debouncedOnEnd({
finished: false
});
}
}
var DecayAnimation_default = DecayAnimation;