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Current File : /home/forge/evolutionequity.com/node_modules/popmotion/dist/popmotion.es.js
import { __rest, __assign, __extends } from 'tslib';
import { pipe, velocityPerSecond, mixComplex, mixColor, mix, clamp, progress, velocityPerFrame, distance, angle, applyOffset } from '@popmotion/popcorn';
import sync, { getFrameData, cancelSync } from 'framesync';
import { color, complex, px, percent, degrees, vh, vw, number } from 'style-value-types';
import { createReversedEasing, linear, easeOut, easeInOut } from '@popmotion/easing';
import { invariant } from 'hey-listen';

var Observer = /*#__PURE__*/function () {
    function Observer(_a, observer) {
        var _this = this;
        var middleware = _a.middleware,
            onComplete = _a.onComplete;
        this.isActive = true;
        this.update = function (v) {
            if (_this.observer.update) _this.updateObserver(v);
        };
        this.complete = function () {
            if (_this.observer.complete && _this.isActive) _this.observer.complete();
            if (_this.onComplete) _this.onComplete();
            _this.isActive = false;
        };
        this.error = function (err) {
            if (_this.observer.error && _this.isActive) _this.observer.error(err);
            _this.isActive = false;
        };
        this.observer = observer;
        this.updateObserver = function (v) {
            return observer.update(v);
        };
        this.onComplete = onComplete;
        if (observer.update && middleware && middleware.length) {
            middleware.forEach(function (m) {
                return _this.updateObserver = m(_this.updateObserver, _this.complete);
            });
        }
    }
    return Observer;
}();
var createObserver = function (observerCandidate, _a, onComplete) {
    var middleware = _a.middleware;
    if (typeof observerCandidate === 'function') {
        return new Observer({ middleware: middleware, onComplete: onComplete }, { update: observerCandidate });
    } else {
        return new Observer({ middleware: middleware, onComplete: onComplete }, observerCandidate);
    }
};

var Action = /*#__PURE__*/function () {
    function Action(props) {
        if (props === void 0) {
            props = {};
        }
        this.props = props;
    }
    Action.prototype.create = function (props) {
        return new Action(props);
    };
    Action.prototype.start = function (observerCandidate) {
        if (observerCandidate === void 0) {
            observerCandidate = {};
        }
        var isComplete = false;
        var subscription = {
            stop: function () {
                return undefined;
            }
        };
        var _a = this.props,
            init = _a.init,
            observerProps = __rest(_a, ["init"]);
        var observer = createObserver(observerCandidate, observerProps, function () {
            isComplete = true;
            subscription.stop();
        });
        var api = init(observer);
        subscription = api ? __assign({}, subscription, api) : subscription;
        if (isComplete) subscription.stop();
        return subscription;
    };
    Action.prototype.applyMiddleware = function (middleware) {
        return this.create(__assign({}, this.props, { middleware: this.props.middleware ? [middleware].concat(this.props.middleware) : [middleware] }));
    };
    Action.prototype.pipe = function () {
        var funcs = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            funcs[_i] = arguments[_i];
        }
        var pipedUpdate = funcs.length === 1 ? funcs[0] : pipe.apply(void 0, funcs);
        return this.applyMiddleware(function (update) {
            return function (v) {
                return update(pipedUpdate(v));
            };
        });
    };
    return Action;
}();
var action = function (init) {
    return new Action({ init: init });
};

var Chainable = /*#__PURE__*/function () {
    function Chainable(props) {
        if (props === void 0) {
            props = {};
        }
        this.props = props;
    }
    Chainable.prototype.applyMiddleware = function (middleware) {
        return this.create(__assign({}, this.props, { middleware: this.props.middleware ? [middleware].concat(this.props.middleware) : [middleware] }));
    };
    Chainable.prototype.pipe = function () {
        var funcs = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            funcs[_i] = arguments[_i];
        }
        var pipedUpdate = funcs.length === 1 ? funcs[0] : pipe.apply(void 0, funcs);
        return this.applyMiddleware(function (update) {
            return function (v) {
                return update(pipedUpdate(v));
            };
        });
    };
    Chainable.prototype.while = function (predicate) {
        return this.applyMiddleware(function (update, complete) {
            return function (v) {
                return predicate(v) ? update(v) : complete();
            };
        });
    };
    Chainable.prototype.filter = function (predicate) {
        return this.applyMiddleware(function (update) {
            return function (v) {
                return predicate(v) && update(v);
            };
        });
    };
    return Chainable;
}();

var BaseMulticast = /*#__PURE__*/function (_super) {
    __extends(BaseMulticast, _super);
    function BaseMulticast() {
        var _this = _super !== null && _super.apply(this, arguments) || this;
        _this.subscribers = [];
        return _this;
    }
    BaseMulticast.prototype.complete = function () {
        this.subscribers.forEach(function (subscriber) {
            return subscriber.complete();
        });
    };
    BaseMulticast.prototype.error = function (err) {
        this.subscribers.forEach(function (subscriber) {
            return subscriber.error(err);
        });
    };
    BaseMulticast.prototype.update = function (v) {
        for (var i = 0; i < this.subscribers.length; i++) {
            this.subscribers[i].update(v);
        }
    };
    BaseMulticast.prototype.subscribe = function (observerCandidate) {
        var _this = this;
        var observer = createObserver(observerCandidate, this.props);
        this.subscribers.push(observer);
        var subscription = {
            unsubscribe: function () {
                var index = _this.subscribers.indexOf(observer);
                if (index !== -1) _this.subscribers.splice(index, 1);
            }
        };
        return subscription;
    };
    BaseMulticast.prototype.stop = function () {
        if (this.parent) this.parent.stop();
    };
    return BaseMulticast;
}(Chainable);

var Multicast = /*#__PURE__*/function (_super) {
    __extends(Multicast, _super);
    function Multicast() {
        return _super !== null && _super.apply(this, arguments) || this;
    }
    Multicast.prototype.create = function (props) {
        return new Multicast(props);
    };
    return Multicast;
}(BaseMulticast);
var multicast = function () {
    return new Multicast();
};

var ValueReaction = /*#__PURE__*/function (_super) {
    __extends(ValueReaction, _super);
    function ValueReaction(props) {
        var _this = _super.call(this, props) || this;
        _this.scheduleVelocityCheck = function () {
            return sync.postRender(_this.velocityCheck);
        };
        _this.velocityCheck = function (_a) {
            var timestamp = _a.timestamp;
            if (timestamp !== _this.lastUpdated) {
                _this.prev = _this.current;
            }
        };
        _this.prev = _this.current = props.value || 0;
        _this.updateCurrent = function (v) {
            return _this.current = v;
        };
        _this.getVelocityOfCurrent = function () {
            return _this.getSingleVelocity(_this.current, _this.prev);
        };
        if (props.initialSubscription) _this.subscribe(props.initialSubscription);
        return _this;
    }
    ValueReaction.prototype.create = function (props) {
        return new ValueReaction(props);
    };
    ValueReaction.prototype.get = function () {
        return this.current;
    };
    ValueReaction.prototype.getVelocity = function () {
        return this.getVelocityOfCurrent();
    };
    ValueReaction.prototype.update = function (v) {
        _super.prototype.update.call(this, v);
        this.prev = this.current;
        this.updateCurrent(v);
        var _a = getFrameData(),
            delta = _a.delta,
            timestamp = _a.timestamp;
        this.timeDelta = delta;
        this.lastUpdated = timestamp;
        sync.postRender(this.scheduleVelocityCheck);
    };
    ValueReaction.prototype.subscribe = function (observerCandidate) {
        var sub = _super.prototype.subscribe.call(this, observerCandidate);
        this.subscribers[this.subscribers.length - 1].update(this.current);
        return sub;
    };
    ValueReaction.prototype.getSingleVelocity = function (current, prev) {
        return typeof current === 'number' && typeof prev === 'number' ? velocityPerSecond(current - prev, this.timeDelta) : velocityPerSecond(parseFloat(current) - parseFloat(prev), this.timeDelta) || 0;
    };
    return ValueReaction;
}(BaseMulticast);
var value = function (value, initialSubscription) {
    return new ValueReaction({ value: value, initialSubscription: initialSubscription });
};

var createVectorTests = function (typeTests) {
    var testNames = Object.keys(typeTests);
    var isVectorProp = function (prop, key) {
        return prop !== undefined && !typeTests[key](prop);
    };
    var getVectorKeys = function (props) {
        return testNames.reduce(function (vectorKeys, key) {
            if (isVectorProp(props[key], key)) vectorKeys.push(key);
            return vectorKeys;
        }, []);
    };
    var testVectorProps = function (props) {
        return props && testNames.some(function (key) {
            return isVectorProp(props[key], key);
        });
    };
    return { getVectorKeys: getVectorKeys, testVectorProps: testVectorProps };
};
var unitTypes = [px, percent, degrees, vh, vw];
var findUnitType = function (prop) {
    return unitTypes.find(function (type) {
        return type.test(prop);
    });
};
var isUnitProp = function (prop) {
    return Boolean(findUnitType(prop));
};
var createAction = function (action, props) {
    return action(props);
};
var createUnitAction = function (action, _a) {
    var from = _a.from,
        to = _a.to,
        props = __rest(_a, ["from", "to"]);
    var unitType = findUnitType(from) || findUnitType(to);
    var transform = unitType.transform,
        parse = unitType.parse;
    return action(__assign({}, props, { from: typeof from === 'string' ? parse(from) : from, to: typeof to === 'string' ? parse(to) : to })).pipe(transform);
};
var createMixerAction = function (mixer) {
    return function (action, _a) {
        var from = _a.from,
            to = _a.to,
            props = __rest(_a, ["from", "to"]);
        return action(__assign({}, props, { from: 0, to: 1 })).pipe(mixer(from, to));
    };
};
var createColorAction = /*#__PURE__*/createMixerAction(mixColor);
var createComplexAction = /*#__PURE__*/createMixerAction(mixComplex);
var createVectorAction = function (action, typeTests) {
    var _a = createVectorTests(typeTests),
        testVectorProps = _a.testVectorProps,
        getVectorKeys = _a.getVectorKeys;
    var vectorAction = function (props) {
        var isVector = testVectorProps(props);
        if (!isVector) return action(props);
        var vectorKeys = getVectorKeys(props);
        var testKey = vectorKeys[0];
        var testProp = props[testKey];
        return getActionCreator(testProp)(action, props, vectorKeys);
    };
    return vectorAction;
};
var getActionCreator = function (prop) {
    if (typeof prop === 'number') {
        return createAction;
    } else if (isUnitProp(prop)) {
        return createUnitAction;
    } else if (color.test(prop)) {
        return createColorAction;
    } else if (complex.test(prop)) {
        return createComplexAction;
    } else {
        return createAction;
    }
};

var decay = function (props) {
    if (props === void 0) {
        props = {};
    }
    return action(function (_a) {
        var complete = _a.complete,
            update = _a.update;
        var _b = props.velocity,
            velocity = _b === void 0 ? 0 : _b,
            _c = props.from,
            from = _c === void 0 ? 0 : _c,
            _d = props.power,
            power = _d === void 0 ? 0.8 : _d,
            _e = props.timeConstant,
            timeConstant = _e === void 0 ? 350 : _e,
            _f = props.restDelta,
            restDelta = _f === void 0 ? 0.5 : _f,
            modifyTarget = props.modifyTarget;
        var elapsed = 0;
        var amplitude = power * velocity;
        var idealTarget = Math.round(from + amplitude);
        var target = typeof modifyTarget === 'undefined' ? idealTarget : modifyTarget(idealTarget);
        var process = sync.update(function (_a) {
            var frameDelta = _a.delta;
            elapsed += frameDelta;
            var delta = -amplitude * Math.exp(-elapsed / timeConstant);
            var isMoving = delta > restDelta || delta < -restDelta;
            var current = isMoving ? target + delta : target;
            update(current);
            if (!isMoving) {
                cancelSync.update(process);
                complete();
            }
        }, true);
        return {
            stop: function () {
                return cancelSync.update(process);
            }
        };
    });
};
var vectorDecay = /*#__PURE__*/createVectorAction(decay, {
    from: number.test,
    modifyTarget: function (func) {
        return typeof func === 'function';
    },
    velocity: number.test
});

var spring = function (props) {
    if (props === void 0) {
        props = {};
    }
    return action(function (_a) {
        var update = _a.update,
            complete = _a.complete;
        var _b = props.velocity,
            velocity = _b === void 0 ? 0.0 : _b;
        var _c = props.from,
            from = _c === void 0 ? 0.0 : _c,
            _d = props.to,
            to = _d === void 0 ? 0.0 : _d,
            _e = props.stiffness,
            stiffness = _e === void 0 ? 100 : _e,
            _f = props.damping,
            damping = _f === void 0 ? 10 : _f,
            _g = props.mass,
            mass = _g === void 0 ? 1.0 : _g,
            _h = props.restSpeed,
            restSpeed = _h === void 0 ? 0.01 : _h,
            _j = props.restDelta,
            restDelta = _j === void 0 ? 0.01 : _j;
        var initialVelocity = velocity ? -(velocity / 1000) : 0.0;
        var t = 0;
        var delta = to - from;
        var position = from;
        var prevPosition = position;
        var process = sync.update(function (_a) {
            var timeDelta = _a.delta;
            t += timeDelta;
            var dampingRatio = damping / (2 * Math.sqrt(stiffness * mass));
            var angularFreq = Math.sqrt(stiffness / mass) / 1000;
            prevPosition = position;
            if (dampingRatio < 1) {
                var envelope = Math.exp(-dampingRatio * angularFreq * t);
                var expoDecay = angularFreq * Math.sqrt(1.0 - dampingRatio * dampingRatio);
                position = to - envelope * ((initialVelocity + dampingRatio * angularFreq * delta) / expoDecay * Math.sin(expoDecay * t) + delta * Math.cos(expoDecay * t));
            } else {
                var envelope = Math.exp(-angularFreq * t);
                position = to - envelope * (delta + (initialVelocity + angularFreq * delta) * t);
            }
            velocity = velocityPerSecond(position - prevPosition, timeDelta);
            var isBelowVelocityThreshold = Math.abs(velocity) <= restSpeed;
            var isBelowDisplacementThreshold = Math.abs(to - position) <= restDelta;
            if (isBelowVelocityThreshold && isBelowDisplacementThreshold) {
                position = to;
                update(position);
                cancelSync.update(process);
                complete();
            } else {
                update(position);
            }
        }, true);
        return {
            stop: function () {
                return cancelSync.update(process);
            }
        };
    });
};
var vectorSpring = /*#__PURE__*/createVectorAction(spring, {
    from: number.test,
    to: number.test,
    stiffness: number.test,
    damping: number.test,
    mass: number.test,
    velocity: number.test
});

var inertia = function (_a) {
    var _b = _a.from,
        from = _b === void 0 ? 0 : _b,
        _c = _a.velocity,
        velocity = _c === void 0 ? 0 : _c,
        min = _a.min,
        max = _a.max,
        _d = _a.power,
        power = _d === void 0 ? 0.8 : _d,
        _e = _a.timeConstant,
        timeConstant = _e === void 0 ? 700 : _e,
        _f = _a.bounceStiffness,
        bounceStiffness = _f === void 0 ? 500 : _f,
        _g = _a.bounceDamping,
        bounceDamping = _g === void 0 ? 10 : _g,
        _h = _a.restDelta,
        restDelta = _h === void 0 ? 1 : _h,
        modifyTarget = _a.modifyTarget;
    return action(function (_a) {
        var update = _a.update,
            complete = _a.complete;
        var prev = from;
        var current = from;
        var activeAnimation;
        var isSpring = false;
        var isLessThanMin = function (v) {
            return min !== undefined && v <= min;
        };
        var isMoreThanMax = function (v) {
            return max !== undefined && v >= max;
        };
        var isOutOfBounds = function (v) {
            return isLessThanMin(v) || isMoreThanMax(v);
        };
        var isTravellingAwayFromBounds = function (v, currentVelocity) {
            return isLessThanMin(v) && currentVelocity < 0 || isMoreThanMax(v) && currentVelocity > 0;
        };
        var onUpdate = function (v) {
            update(v);
            prev = current;
            current = v;
            velocity = velocityPerSecond(current - prev, getFrameData().delta);
            if (activeAnimation && !isSpring && isTravellingAwayFromBounds(v, velocity)) {
                startSpring({ from: v, velocity: velocity });
            }
        };
        var startAnimation = function (animation, next) {
            activeAnimation && activeAnimation.stop();
            activeAnimation = animation.start({
                update: onUpdate,
                complete: function () {
                    if (next) {
                        next();
                        return;
                    }
                    complete();
                }
            });
        };
        var startSpring = function (props) {
            isSpring = true;
            startAnimation(vectorSpring(__assign({}, props, { to: isLessThanMin(props.from) ? min : max, stiffness: bounceStiffness, damping: bounceDamping, restDelta: restDelta })));
        };
        if (isOutOfBounds(from)) {
            startSpring({ from: from, velocity: velocity });
        } else if (velocity !== 0) {
            var animation = vectorDecay({
                from: from,
                velocity: velocity,
                timeConstant: timeConstant,
                power: power,
                restDelta: isOutOfBounds(from) ? 20 : restDelta,
                modifyTarget: modifyTarget
            });
            startAnimation(animation, function () {
                if (isOutOfBounds(current)) {
                    startSpring({ from: current, velocity: velocity });
                } else {
                    complete();
                }
            });
        } else {
            complete();
        }
        return {
            stop: function () {
                return activeAnimation && activeAnimation.stop();
            }
        };
    });
};
var index = /*#__PURE__*/createVectorAction(inertia, {
    from: number.test,
    velocity: number.test,
    min: number.test,
    max: number.test,
    damping: number.test,
    stiffness: number.test,
    modifyTarget: function (func) {
        return typeof func === 'function';
    }
});

var frame = function () {
    return action(function (_a) {
        var update = _a.update;
        var initialTime = 0;
        var process = sync.update(function (_a) {
            var timestamp = _a.timestamp;
            if (!initialTime) initialTime = timestamp;
            update(timestamp - initialTime);
        }, true, true);
        return {
            stop: function () {
                return cancelSync.update(process);
            }
        };
    });
};

var scrubber = function (_a) {
    var _b = _a.from,
        from = _b === void 0 ? 0 : _b,
        _c = _a.to,
        to = _c === void 0 ? 1 : _c,
        _d = _a.ease,
        ease = _d === void 0 ? linear : _d,
        _e = _a.reverseEase,
        reverseEase = _e === void 0 ? false : _e;
    if (reverseEase) {
        ease = createReversedEasing(ease);
    }
    return action(function (_a) {
        var update = _a.update;
        return {
            seek: function (progress) {
                return update(progress);
            }
        };
    }).pipe(ease, function (v) {
        return mix(from, to, v);
    });
};
var vectorScrubber = /*#__PURE__*/createVectorAction(scrubber, {
    ease: function (func) {
        return typeof func === 'function';
    },
    from: number.test,
    to: number.test
});

var clampProgress = /*#__PURE__*/clamp(0, 1);
var tween = function (props) {
    if (props === void 0) {
        props = {};
    }
    return action(function (_a) {
        var update = _a.update,
            complete = _a.complete;
        var _b = props.duration,
            duration = _b === void 0 ? 300 : _b,
            _c = props.ease,
            ease = _c === void 0 ? easeOut : _c,
            _d = props.flip,
            flip = _d === void 0 ? 0 : _d,
            _e = props.loop,
            loop = _e === void 0 ? 0 : _e,
            _f = props.yoyo,
            yoyo = _f === void 0 ? 0 : _f,
            _g = props.repeatDelay,
            repeatDelay = _g === void 0 ? 0 : _g;
        var _h = props.from,
            from = _h === void 0 ? 0 : _h,
            _j = props.to,
            to = _j === void 0 ? 1 : _j,
            _k = props.elapsed,
            elapsed = _k === void 0 ? 0 : _k,
            _l = props.flipCount,
            flipCount = _l === void 0 ? 0 : _l,
            _m = props.yoyoCount,
            yoyoCount = _m === void 0 ? 0 : _m,
            _o = props.loopCount,
            loopCount = _o === void 0 ? 0 : _o;
        var playhead = vectorScrubber({ from: from, to: to, ease: ease }).start(update);
        var currentProgress = 0;
        var process;
        var isActive = false;
        var reverseAnimation = function (reverseEase) {
            var _a;
            if (reverseEase === void 0) {
                reverseEase = false;
            }
            _a = [to, from], from = _a[0], to = _a[1];
            playhead = vectorScrubber({ from: from, to: to, ease: ease, reverseEase: reverseEase }).start(update);
        };
        var isTweenComplete = function () {
            var isComplete = isActive && elapsed > duration + repeatDelay;
            if (!isComplete) return false;
            if (isComplete && !loop && !flip && !yoyo) return true;
            var overtime = elapsed - duration;
            elapsed = overtime - repeatDelay;
            if (loop && loopCount < loop) {
                loopCount++;
                return false;
            } else if (flip && flipCount < flip) {
                flipCount++;
                reverseAnimation();
                return false;
            } else if (yoyo && yoyoCount < yoyo) {
                yoyoCount++;
                reverseAnimation(yoyoCount % 2 !== 0);
                return false;
            }
            return true;
        };
        var updateTween = function () {
            currentProgress = clampProgress(progress(0, duration, elapsed));
            playhead.seek(currentProgress);
        };
        var startTimer = function () {
            isActive = true;
            process = sync.update(function (_a) {
                var delta = _a.delta;
                elapsed += delta;
                updateTween();
                if (isTweenComplete()) {
                    cancelSync.update(process);
                    complete && sync.update(complete, false, true);
                }
            }, true);
        };
        var stopTimer = function () {
            isActive = false;
            if (process) cancelSync.update(process);
        };
        startTimer();
        return {
            isActive: function () {
                return isActive;
            },
            getElapsed: function () {
                return clamp(0, duration, elapsed);
            },
            getProgress: function () {
                return currentProgress;
            },
            stop: function () {
                stopTimer();
            },
            pause: function () {
                stopTimer();
                return this;
            },
            resume: function () {
                if (!isActive) startTimer();
                return this;
            },
            seek: function (newProgress) {
                elapsed = mix(0, duration, newProgress);
                sync.update(updateTween, false, true);
                return this;
            },
            reverse: function () {
                reverseAnimation();
                return this;
            }
        };
    });
};

var clampProgress$1 = /*#__PURE__*/clamp(0, 1);
var defaultEasings = function (values, easing) {
    return values.map(function () {
        return easing || easeOut;
    }).splice(0, values.length - 1);
};
var defaultTimings = function (values) {
    var numValues = values.length;
    return values.map(function (value, i) {
        return i !== 0 ? i / (numValues - 1) : 0;
    });
};
var interpolateScrubbers = function (input, scrubbers, update) {
    var rangeLength = input.length;
    var finalInputIndex = rangeLength - 1;
    var finalScrubberIndex = finalInputIndex - 1;
    var subs = scrubbers.map(function (scrub) {
        return scrub.start(update);
    });
    return function (v) {
        if (v <= input[0]) {
            subs[0].seek(0);
        }
        if (v >= input[finalInputIndex]) {
            subs[finalScrubberIndex].seek(1);
        }
        var i = 1;
        for (; i < rangeLength; i++) {
            if (input[i] > v || i === finalInputIndex) break;
        }
        var progressInRange = progress(input[i - 1], input[i], v);
        subs[i - 1].seek(clampProgress$1(progressInRange));
    };
};
var keyframes = function (_a) {
    var easings = _a.easings,
        _b = _a.ease,
        ease = _b === void 0 ? linear : _b,
        times = _a.times,
        values = _a.values,
        tweenProps = __rest(_a, ["easings", "ease", "times", "values"]);
    easings = Array.isArray(easings) ? easings : defaultEasings(values, easings);
    times = times || defaultTimings(values);
    var scrubbers = easings.map(function (easing, i) {
        return vectorScrubber({
            from: values[i],
            to: values[i + 1],
            ease: easing
        });
    });
    return tween(__assign({}, tweenProps, { ease: ease })).applyMiddleware(function (update) {
        return interpolateScrubbers(times, scrubbers, update);
    });
};

var physics = function (props) {
    if (props === void 0) {
        props = {};
    }
    return action(function (_a) {
        var complete = _a.complete,
            update = _a.update;
        var _b = props.acceleration,
            acceleration = _b === void 0 ? 0 : _b,
            _c = props.friction,
            friction = _c === void 0 ? 0 : _c,
            _d = props.velocity,
            velocity = _d === void 0 ? 0 : _d,
            springStrength = props.springStrength,
            to = props.to;
        var _e = props.restSpeed,
            restSpeed = _e === void 0 ? 0.001 : _e,
            _f = props.from,
            from = _f === void 0 ? 0 : _f;
        var current = from;
        var process = sync.update(function (_a) {
            var delta = _a.delta;
            var elapsed = Math.max(delta, 16);
            if (acceleration) velocity += velocityPerFrame(acceleration, elapsed);
            if (friction) velocity *= Math.pow(1 - friction, elapsed / 100);
            if (springStrength !== undefined && to !== undefined) {
                var distanceToTarget = to - current;
                velocity += distanceToTarget * velocityPerFrame(springStrength, elapsed);
            }
            current += velocityPerFrame(velocity, elapsed);
            update(current);
            var isComplete = restSpeed !== false && (!velocity || Math.abs(velocity) <= restSpeed);
            if (isComplete) {
                cancelSync.update(process);
                complete();
            }
        }, true);
        return {
            set: function (v) {
                current = v;
                return this;
            },
            setAcceleration: function (v) {
                acceleration = v;
                return this;
            },
            setFriction: function (v) {
                friction = v;
                return this;
            },
            setSpringStrength: function (v) {
                springStrength = v;
                return this;
            },
            setSpringTarget: function (v) {
                to = v;
                return this;
            },
            setVelocity: function (v) {
                velocity = v;
                return this;
            },
            stop: function () {
                return cancelSync.update(process);
            }
        };
    });
};
var vectorPhysics = /*#__PURE__*/createVectorAction(physics, {
    acceleration: number.test,
    friction: number.test,
    velocity: number.test,
    from: number.test,
    to: number.test,
    springStrength: number.test
});

var multi = function (_a) {
    var getCount = _a.getCount,
        getFirst = _a.getFirst,
        getOutput = _a.getOutput,
        mapApi = _a.mapApi,
        setProp = _a.setProp,
        startActions = _a.startActions;
    return function (actions) {
        return action(function (_a) {
            var update = _a.update,
                complete = _a.complete,
                error = _a.error;
            var numActions = getCount(actions);
            var output = getOutput();
            var updateOutput = function () {
                return update(output);
            };
            var numCompletedActions = 0;
            var subs = startActions(actions, function (a, name) {
                var hasCompleted = false;
                return a.start({
                    complete: function () {
                        if (!hasCompleted) {
                            hasCompleted = true;
                            numCompletedActions++;
                            if (numCompletedActions === numActions) sync.update(complete);
                        }
                    },
                    error: error,
                    update: function (v) {
                        setProp(output, name, v);
                        sync.update(updateOutput, false, true);
                    }
                });
            });
            return Object.keys(getFirst(subs)).reduce(function (api, methodName) {
                api[methodName] = mapApi(subs, methodName);
                return api;
            }, {});
        });
    };
};

var composite = /*#__PURE__*/multi({
    getOutput: function () {
        return {};
    },
    getCount: function (subs) {
        return Object.keys(subs).length;
    },
    getFirst: function (subs) {
        return subs[Object.keys(subs)[0]];
    },
    mapApi: function (subs, methodName) {
        return function () {
            var args = [];
            for (var _i = 0; _i < arguments.length; _i++) {
                args[_i] = arguments[_i];
            }
            return Object.keys(subs).reduce(function (output, propKey) {
                var _a;
                if (subs[propKey][methodName]) {
                    args[0] && args[0][propKey] !== undefined ? output[propKey] = subs[propKey][methodName](args[0][propKey]) : output[propKey] = (_a = subs[propKey])[methodName].apply(_a, args);
                }
                return output;
            }, {});
        };
    },
    setProp: function (output, name, v) {
        return output[name] = v;
    },
    startActions: function (actions, starter) {
        return Object.keys(actions).reduce(function (subs, key) {
            subs[key] = starter(actions[key], key);
            return subs;
        }, {});
    }
});

var DEFAULT_DURATION = 300;
var flattenTimings = function (instructions) {
    var flatInstructions = [];
    var lastArg = instructions[instructions.length - 1];
    var isStaggered = typeof lastArg === 'number';
    var staggerDelay = isStaggered ? lastArg : 0;
    var segments = isStaggered ? instructions.slice(0, -1) : instructions;
    var numSegments = segments.length;
    var offset = 0;
    segments.forEach(function (item, i) {
        flatInstructions.push(item);
        if (i !== numSegments - 1) {
            var duration = item.duration || DEFAULT_DURATION;
            offset += staggerDelay;
            flatInstructions.push("-" + (duration - offset));
        }
    });
    return flatInstructions;
};
var flattenArrayInstructions = function (instructions, instruction) {
    Array.isArray(instruction) ? instructions.push.apply(instructions, flattenTimings(instruction)) : instructions.push(instruction);
    return instructions;
};
var convertDefToProps = function (props, def, i) {
    var duration = props.duration,
        easings = props.easings,
        times = props.times,
        values = props.values;
    var numValues = values.length;
    var prevTimeTo = times[numValues - 1];
    var timeFrom = def.at === 0 ? 0 : def.at / duration;
    var timeTo = (def.at + def.duration) / duration;
    if (i === 0) {
        values.push(def.from);
        times.push(timeFrom);
    } else {
        if (prevTimeTo !== timeFrom) {
            if (def.from !== undefined) {
                values.push(values[numValues - 1]);
                times.push(timeFrom);
                easings.push(linear);
            }
            var from = def.from !== undefined ? def.from : values[numValues - 1];
            values.push(from);
            times.push(timeFrom);
            easings.push(linear);
        } else if (def.from !== undefined) {
            values.push(def.from);
            times.push(timeFrom);
            easings.push(linear);
        }
    }
    values.push(def.to);
    times.push(timeTo);
    easings.push(def.ease || easeInOut);
    return props;
};
var timeline = function (instructions, _a) {
    var _b = _a === void 0 ? {} : _a,
        duration = _b.duration,
        elapsed = _b.elapsed,
        ease = _b.ease,
        loop = _b.loop,
        flip = _b.flip,
        yoyo = _b.yoyo;
    var playhead = 0;
    var calculatedDuration = 0;
    var flatInstructions = instructions.reduce(flattenArrayInstructions, []);
    var animationDefs = [];
    flatInstructions.forEach(function (instruction) {
        if (typeof instruction === 'string') {
            playhead += parseFloat(instruction);
        } else if (typeof instruction === 'number') {
            playhead = instruction;
        } else {
            var def = __assign({}, instruction, { at: playhead });
            def.duration = def.duration === undefined ? DEFAULT_DURATION : def.duration;
            animationDefs.push(def);
            playhead += def.duration;
            calculatedDuration = Math.max(calculatedDuration, def.at + def.duration);
        }
    });
    var tracks = {};
    var numDefs = animationDefs.length;
    for (var i = 0; i < numDefs; i++) {
        var def = animationDefs[i];
        var track = def.track;
        if (track === undefined) {
            throw new Error('No track defined');
        }
        if (!tracks.hasOwnProperty(track)) tracks[track] = [];
        tracks[track].push(def);
    }
    var trackKeyframes = {};
    for (var key in tracks) {
        if (tracks.hasOwnProperty(key)) {
            var keyframeProps = tracks[key].reduce(convertDefToProps, {
                duration: calculatedDuration,
                easings: [],
                times: [],
                values: []
            });
            trackKeyframes[key] = keyframes(__assign({}, keyframeProps, { duration: duration || calculatedDuration, ease: ease,
                elapsed: elapsed,
                loop: loop,
                yoyo: yoyo,
                flip: flip }));
        }
    }
    return composite(trackKeyframes);
};

var listen = function (element, events, options) {
    return action(function (_a) {
        var update = _a.update;
        var eventNames = events.split(' ').map(function (eventName) {
            element.addEventListener(eventName, update, options);
            return eventName;
        });
        return {
            stop: function () {
                return eventNames.forEach(function (eventName) {
                    return element.removeEventListener(eventName, update, options);
                });
            }
        };
    });
};

var defaultPointerPos = function () {
    return {
        clientX: 0,
        clientY: 0,
        pageX: 0,
        pageY: 0,
        x: 0,
        y: 0
    };
};
var eventToPoint = function (e, point) {
    if (point === void 0) {
        point = defaultPointerPos();
    }
    point.clientX = point.x = e.clientX;
    point.clientY = point.y = e.clientY;
    point.pageX = e.pageX;
    point.pageY = e.pageY;
    return point;
};

var points = [/*#__PURE__*/defaultPointerPos()];
var isTouchDevice = false;
if (typeof document !== 'undefined') {
    var updatePointsLocation = function (_a) {
        var touches = _a.touches;
        isTouchDevice = true;
        var numTouches = touches.length;
        points.length = 0;
        for (var i = 0; i < numTouches; i++) {
            var thisTouch = touches[i];
            points.push(eventToPoint(thisTouch));
        }
    };
    listen(document, 'touchstart touchmove', {
        passive: true,
        capture: true
    }).start(updatePointsLocation);
}
var multitouch = function (_a) {
    var _b = _a === void 0 ? {} : _a,
        _c = _b.preventDefault,
        preventDefault = _c === void 0 ? true : _c,
        _d = _b.scale,
        scale = _d === void 0 ? 1.0 : _d,
        _e = _b.rotate,
        rotate = _e === void 0 ? 0.0 : _e;
    return action(function (_a) {
        var update = _a.update;
        var output = {
            touches: points,
            scale: scale,
            rotate: rotate
        };
        var initialDistance = 0.0;
        var initialRotation = 0.0;
        var isGesture = points.length > 1;
        if (isGesture) {
            var firstTouch = points[0],
                secondTouch = points[1];
            initialDistance = distance(firstTouch, secondTouch);
            initialRotation = angle(firstTouch, secondTouch);
        }
        var updatePoint = function () {
            if (isGesture) {
                var firstTouch = points[0],
                    secondTouch = points[1];
                var newDistance = distance(firstTouch, secondTouch);
                var newRotation = angle(firstTouch, secondTouch);
                output.scale = scale * (newDistance / initialDistance);
                output.rotate = rotate + (newRotation - initialRotation);
            }
            update(output);
        };
        var onMove = function (e) {
            if (preventDefault || e.touches.length > 1) e.preventDefault();
            sync.update(updatePoint);
        };
        var updateOnMove = listen(document, 'touchmove', {
            passive: !preventDefault
        }).start(onMove);
        if (isTouchDevice) sync.update(updatePoint);
        return {
            stop: function () {
                cancelSync.update(updatePoint);
                updateOnMove.stop();
            }
        };
    });
};
var getIsTouchDevice = function () {
    return isTouchDevice;
};

var point = /*#__PURE__*/defaultPointerPos();
var isMouseDevice = false;
if (typeof document !== 'undefined') {
    var updatePointLocation = function (e) {
        isMouseDevice = true;
        eventToPoint(e, point);
    };
    listen(document, 'mousedown mousemove', true).start(updatePointLocation);
}
var mouse = function (_a) {
    var _b = (_a === void 0 ? {} : _a).preventDefault,
        preventDefault = _b === void 0 ? true : _b;
    return action(function (_a) {
        var update = _a.update;
        var updatePoint = function () {
            return update(point);
        };
        var onMove = function (e) {
            if (preventDefault) e.preventDefault();
            sync.update(updatePoint);
        };
        var updateOnMove = listen(document, 'mousemove').start(onMove);
        if (isMouseDevice) sync.update(updatePoint);
        return {
            stop: function () {
                cancelSync.update(updatePoint);
                updateOnMove.stop();
            }
        };
    });
};

var getFirstTouch = function (_a) {
    var firstTouch = _a[0];
    return firstTouch;
};
var pointer = function (props) {
    if (props === void 0) {
        props = {};
    }
    return getIsTouchDevice() ? multitouch(props).pipe(function (_a) {
        var touches = _a.touches;
        return touches;
    }, getFirstTouch) : mouse(props);
};
var index$1 = function (_a) {
    if (_a === void 0) {
        _a = {};
    }
    var x = _a.x,
        y = _a.y,
        props = __rest(_a, ["x", "y"]);
    if (x !== undefined || y !== undefined) {
        var applyXOffset_1 = applyOffset(x || 0);
        var applyYOffset_1 = applyOffset(y || 0);
        var delta_1 = { x: 0, y: 0 };
        return pointer(props).pipe(function (point) {
            delta_1.x = applyXOffset_1(point.x);
            delta_1.y = applyYOffset_1(point.y);
            return delta_1;
        });
    } else {
        return pointer(props);
    }
};

var chain = function () {
    var actions = [];
    for (var _i = 0; _i < arguments.length; _i++) {
        actions[_i] = arguments[_i];
    }
    return action(function (_a) {
        var update = _a.update,
            complete = _a.complete;
        var i = 0;
        var current;
        var playCurrent = function () {
            current = actions[i].start({
                complete: function () {
                    i++;
                    i >= actions.length ? complete() : playCurrent();
                },
                update: update
            });
        };
        playCurrent();
        return {
            stop: function () {
                return current && current.stop();
            }
        };
    });
};

var parallel = /*#__PURE__*/multi({
    getOutput: function () {
        return [];
    },
    getCount: function (subs) {
        return subs.length;
    },
    getFirst: function (subs) {
        return subs[0];
    },
    mapApi: function (subs, methodName) {
        return function () {
            var args = [];
            for (var _i = 0; _i < arguments.length; _i++) {
                args[_i] = arguments[_i];
            }
            return subs.map(function (sub, i) {
                if (sub[methodName]) {
                    return Array.isArray(args[0]) ? sub[methodName](args[0][i]) : sub[methodName].apply(sub, args);
                }
            });
        };
    },
    setProp: function (output, name, v) {
        return output[name] = v;
    },
    startActions: function (actions, starter) {
        return actions.map(function (action, i) {
            return starter(action, i);
        });
    }
});
var parallel$1 = function () {
    var actions = [];
    for (var _i = 0; _i < arguments.length; _i++) {
        actions[_i] = arguments[_i];
    }
    return parallel(actions);
};

var crossfade = function (a, b) {
    return action(function (observer) {
        var balance = 0;
        var fadable = parallel$1(a, b).start(__assign({}, observer, { update: function (_a) {
                var va = _a[0],
                    vb = _a[1];
                observer.update(mix(va, vb, balance));
            } }));
        return {
            setBalance: function (v) {
                return balance = v;
            },
            stop: function () {
                return fadable.stop();
            }
        };
    });
};

var delay = function (timeToDelay) {
    return action(function (_a) {
        var complete = _a.complete;
        var timeout = setTimeout(complete, timeToDelay);
        return {
            stop: function () {
                return clearTimeout(timeout);
            }
        };
    });
};

var merge = function () {
    var actions = [];
    for (var _i = 0; _i < arguments.length; _i++) {
        actions[_i] = arguments[_i];
    }
    return action(function (observer) {
        var subs = actions.map(function (thisAction) {
            return thisAction.start(observer);
        });
        return {
            stop: function () {
                return subs.forEach(function (sub) {
                    return sub.stop();
                });
            }
        };
    });
};

var schedule = function (scheduler, schedulee) {
    return action(function (_a) {
        var update = _a.update,
            complete = _a.complete;
        var latest;
        var schedulerSub = scheduler.start({
            update: function () {
                return latest !== undefined && update(latest);
            },
            complete: complete
        });
        var scheduleeSub = schedulee.start({
            update: function (v) {
                return latest = v;
            },
            complete: complete
        });
        return {
            stop: function () {
                schedulerSub.stop();
                scheduleeSub.stop();
            }
        };
    });
};

var stagger = function (actions, interval) {
    var intervalIsNumber = typeof interval === 'number';
    var actionsWithDelay = actions.map(function (a, i) {
        var timeToDelay = intervalIsNumber ? interval * i : interval(i);
        return chain(delay(timeToDelay), a);
    });
    return parallel$1.apply(void 0, actionsWithDelay);
};

var styler = function () {
    return invariant(false, 'styler has been removed from Popmotion in 9.0. Downgrade to 8.x or npm install stylefire');
};

export { Action, ValueReaction, action, chain, composite, crossfade, vectorDecay as decay, delay, frame as everyFrame, index as inertia, keyframes, listen, merge, mouse, multicast, multitouch, parallel$1 as parallel, vectorPhysics as physics, index$1 as pointer, schedule, vectorSpring as spring, stagger, styler, timeline, tween, value };
Youez - 2016 - github.com/yon3zu
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