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Animated.tsx
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Animated.tsx
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/**
* Animated.tsx
*
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT license.
*
* Implements animated components for web version of ReactXP.
*/
import * as React from 'react';
import * as ReactDOM from 'react-dom';
import AppConfig from '../common/AppConfig';
import Easing from '../common/Easing';
import * as RX from '../common/Interfaces';
import { executeTransition, TransitionSpec } from './animated/executeTransition';
import RXImage from './Image';
import * as _ from './utils/lodashMini';
import Styles from './Styles';
import RXText from './Text';
import RXTextInput from './TextInput';
import RXView from './View';
// Animated Css Property Units - check /common/Types for the list of available
// css animated properties
const animatedPropUnits: { [key: string]: string } = {
// AnimatedFlexboxStyleRules
height: 'px',
width: 'px',
left: 'px',
right: 'px',
top: 'px',
bottom: 'px',
// AnimatedTransformStyleRules
perspective: '',
rotate: 'deg',
rotateX: 'deg',
rotateY: 'deg',
rotateZ: 'deg',
scale: '',
scaleX: '',
scaleY: '',
scaleZ: '',
translateX: 'px',
translateY: 'px',
skewX: '',
skewY: '',
// AnimatedViewAndImageCommonStyleRules
backgroundColor: '',
opacity: '',
borderRadius: 'px',
// AnimatedTextStyleRules
color: '',
fontSize: 'px',
};
// Every Animation subclass should extend this.
export abstract class Animation {
_id: number | undefined;
// Starts the animation
abstract start(onEnd?: RX.Types.Animated.EndCallback): void;
// Stops the animation
abstract stop(): void;
}
// Interface for a component that wants to know when the value
// of an Animated.Value changes or is about to be animated.
interface ValueListener {
setValue(valueObject: Value, newValue: number | string): void;
startTransition(valueObject: Value, from: number | string, toValue: number | string, duration: number,
easing: string, delay: number, onEnd: RX.Types.Animated.EndCallback): void;
stopTransition(valueObject: Value): number | string | undefined;
}
// The animated value object
export class Value extends RX.Types.AnimatedValue {
protected _value: number | string;
private _listeners: ValueListener[];
// Initializes the object with the defaults and assigns the id for the animated value.
constructor(value: number) {
super(value);
this._value = value;
this._listeners = [];
}
// Gets the current animated value (this gets updates after animation concludes)
_getInputValue(): number | string {
return this._value;
}
_getOutputValue(): number | string {
return this._getInterpolatedValue(this._value);
}
_getInterpolatedValue(inputVal: number | string): number | string {
return inputVal;
}
_isInterpolated(): boolean {
return false;
}
interpolate(config: RX.Types.Animated.InterpolationConfigType) {
return new InterpolatedValue(config, this);
}
// Updates a value in this animated reference.
setValue(value: number | string): void {
if (value === undefined) {
throw new Error('An invalid value was passed into setvalue in the animated value api');
}
// If value the same, do nothing.
if (value === this._value) {
return;
}
this._value = value;
// Notify subscribers about the new value.
_.each(this._listeners, listener => listener.setValue(this, value));
}
// Add listener for when the value gets updated.
_addListener(listenerToAdd: ValueListener): void {
if (this._listeners.indexOf(listenerToAdd) < 0) {
this._listeners.push(listenerToAdd);
}
}
// Remove a specific listner.
_removeListener(listenerToRemove: ValueListener): void {
this._listeners = _.filter(this._listeners, listener => listener !== listenerToRemove);
}
// Remove all listeners.
_removeAllListeners(): void {
this._listeners = [];
}
// Start a specific animation.
_startTransition(toValue: number | string, duration: number, easing: string, delay: number,
onEnd: RX.Types.Animated.EndCallback): void {
// If there are no listeners, the app probably has a bug where it's
// starting an animation before the associated element is mounted.
// Complete the animation immediately by updating to the end value
// and caling the onEnd callback.
if (this._listeners.length === 0) {
this._updateFinalValue(toValue);
if (onEnd) {
onEnd({ finished: false });
}
return;
}
// Only call onEnd once for a series of listeners.
let onEndCalled = false;
const onEndWrapper = (result: RX.Types.Animated.EndResult) => {
if (onEndCalled) {
return;
}
onEndCalled = true;
onEnd(result);
};
_.each(this._listeners, listener => {
listener.startTransition(this, this._getOutputValue(), this._getInterpolatedValue(toValue),
duration, easing, delay, onEndWrapper);
});
}
// Stop animation.
_stopTransition() {
_.each(this._listeners, listener => {
const updatedValue = listener.stopTransition(this);
if (updatedValue !== undefined) {
this._updateFinalValue(updatedValue);
}
});
}
// After an animation is stopped or completed, updates
// the final value.
_updateFinalValue(value: number | string) {
this.setValue(value);
}
}
export class InterpolatedValue extends Value {
private _interpolationConfig: { [key: number]: string | number } | undefined;
constructor(private _config: RX.Types.Animated.InterpolationConfigType, rootValue: Value) {
super(rootValue._getOutputValue() as number);
if (!this._config || !this._config.inputRange || !this._config.outputRange ||
this._config.inputRange.length < 2 || this._config.outputRange.length < 2 ||
this._config.inputRange.length !== this._config.outputRange.length) {
throw new Error('The interpolation config is invalid. Input and output arrays must be same length.');
}
const newInterpolationConfig: { [key: number]: string | number } = {};
_.each(this._config.inputRange, (key, index) => {
newInterpolationConfig[key] = this._config.outputRange[index];
});
this._interpolationConfig = newInterpolationConfig;
rootValue._addListener({
setValue: (valueObject: Value, newValue: number | string) => {
this.setValue(valueObject._getOutputValue());
},
startTransition: (valueObject: Value, from: number | string, toValue: number | string, duration: number,
easing: string, delay: number, onEnd: RX.Types.Animated.EndCallback) => {
this._startTransition(toValue, duration, easing, delay, onEnd);
},
stopTransition: (valueObject: Value) => {
this._stopTransition();
return undefined;
},
});
}
_startTransition(toValue: number | string, duration: number, easing: string, delay: number,
onEnd: RX.Types.Animated.EndCallback): void {
// This API doesn't currently support more than two elements in the
// interpolation array. Supporting this in the web would require the
// use of JS-driven animations or keyframes, both of which are prohibitively
// expensive from a performance and responsiveness perspective.
if (this._config.inputRange.length !== 2) {
if (AppConfig.isDevelopmentMode()) {
console.log('Web implementation of interpolate API currently supports only two interpolation values.');
}
}
super._startTransition(toValue, duration, easing, delay, onEnd);
}
_convertValueToNumeric(inputVal: number | string): number {
if (_.isNumber(inputVal)) {
return inputVal;
}
return parseInt(inputVal, 10);
}
_addUnitsToNumericValue(value: number, templateValue: number | string): number | string {
if (_.isNumber(templateValue)) {
return value;
}
// Does the template contain any of the common units?
const templateString = templateValue;
const commonUnits = ['deg', 'grad', 'rad'];
for (const unit of commonUnits) {
if (templateString.indexOf(unit) > 0) {
return value.toString() + unit;
}
}
return value;
}
_getInterpolatedValue(inputVal: number | string): number | string {
if (!this._interpolationConfig) {
throw new Error('There is no interpolation config but one is required');
}
const numericInputValue = this._convertValueToNumeric(inputVal);
const outputValues = this._config.outputRange.map(value => this._convertValueToNumeric(value));
if (this._interpolationConfig[numericInputValue]) {
return this._interpolationConfig[numericInputValue];
}
if (inputVal < this._config.inputRange[0]) {
return outputValues[0];
}
for (let i = 1; i < this._config.inputRange.length; i++) {
if (inputVal < this._config.inputRange[i]) {
const ratio = (numericInputValue - this._config.inputRange[i - 1]) /
(this._config.inputRange[i] - this._config.inputRange[i - 1]);
return this._addUnitsToNumericValue(
(this._config.outputRange as number[])[i] * ratio +
(this._config.outputRange as number[])[i - 1] * (1 - ratio),
inputVal);
}
}
return this._addUnitsToNumericValue(
outputValues[this._config.inputRange.length - 1],
inputVal);
}
_isInterpolated(): boolean {
return true;
}
}
export const timing: RX.Types.Animated.TimingFunction = function(value: Value,
config: RX.Types.Animated.TimingAnimationConfig): RX.Types.Animated.CompositeAnimation {
if (!value || !config) {
throw new Error('Timing animation requires value and config');
}
let stopLooping = false;
return {
start: function(onEnd?: RX.Types.Animated.EndCallback): void {
const animate = () => {
if (config.loop) {
value.setValue(config.loop.restartFrom);
}
const easing: RX.Types.Animated.EasingFunction = config.easing || Easing.Default();
const duration = config.duration !== undefined ? config.duration : 500;
const delay = config.delay || 0;
value._startTransition(config.toValue, duration, easing.cssName, delay, result => {
// Restart the loop?
if (config.loop && !stopLooping) {
animate();
} else {
value._updateFinalValue(config.toValue);
}
if (onEnd) {
onEnd(result);
}
});
};
// Trigger animation loop
animate();
},
stop: function(): void {
stopLooping = true;
value._stopTransition();
},
};
};
export const sequence: RX.Types.Animated.SequenceFunction = function(
animations: RX.Types.Animated.CompositeAnimation[]): RX.Types.Animated.CompositeAnimation {
if (!animations) {
throw new Error('Sequence animation requires a list of animations');
}
let hasBeenStopped = false;
let doneCount = 0;
const result = {
start: function(onEnd?: RX.Types.Animated.EndCallback) {
if (!animations || animations.length === 0) {
throw new Error('No animations were passed to the animated sequence API');
}
const executeNext = () => {
doneCount++;
const isFinished = doneCount === animations.length;
if (hasBeenStopped || isFinished) {
doneCount = 0;
hasBeenStopped = false;
if (onEnd) {
onEnd({ finished: isFinished });
}
return;
}
animations[doneCount].start(executeNext);
};
animations[doneCount].start(executeNext);
},
stop: function() {
if (doneCount < animations.length) {
doneCount = 0;
hasBeenStopped = true;
animations[doneCount].stop();
}
},
};
return result;
};
export const parallel: RX.Types.Animated.ParallelFunction = function(
animations: RX.Types.Animated.CompositeAnimation[]): RX.Types.Animated.CompositeAnimation {
if (!animations) {
throw new Error('Parallel animation requires a list of animations');
}
// Variable to make sure we only call stop() at most once
let hasBeenStopped = false;
let doneCount = 0;
const result = {
start: function(onEnd?: RX.Types.Animated.EndCallback) {
if (!animations || animations.length === 0) {
throw new Error('No animations were passed to the animated parallel API');
}
// Walk through animations and start all as soon as possible.
animations.forEach((animation, id) => {
animation.start(animationResult => {
doneCount++;
const isFinished = doneCount === animations.length;
if (hasBeenStopped || isFinished) {
doneCount = 0;
hasBeenStopped = false;
if (onEnd) {
onEnd({ finished: isFinished });
}
return;
}
});
});
},
stop: function(): void {
doneCount = 0;
hasBeenStopped = true;
animations.forEach(animation => {
animation.stop();
});
},
};
return result;
};
interface ExtendedTransition extends TransitionSpec {
onEnd?: RX.Types.Animated.EndCallback;
toValue?: number | string;
}
interface AnimatedAttribute {
valueObject: Value;
activeTransition?: ExtendedTransition;
}
interface AnimatedValueMap {
[transform: string]: AnimatedAttribute;
}
// Function for creating wrapper AnimatedComponent around passed in component
function createAnimatedComponent<PropsType extends RX.Types.CommonProps<C>, C>(Component: any): any {
class AnimatedComponentGenerated extends React.Component<PropsType, void>
implements RX.AnimatedComponent<PropsType, void, C>, ValueListener {
private _mountedComponent: any = null;
private _propsWithoutStyle: any;
// Gets initialized via _updateStypes
private _processedStyle!: { [attribute: string]: string};
private _animatedAttributes: AnimatedValueMap;
// Gets initialized via _updateStypes
private _staticTransforms!: { [transform: string]: string };
private _animatedTransforms: AnimatedValueMap;
constructor(props: PropsType) {
super(props);
this._animatedAttributes = {};
this._animatedTransforms = {};
this._updateStyles(props);
}
setNativeProps(props: PropsType) {
if (AppConfig.isDevelopmentMode()) {
console.error('setNativeProps not supported on web');
}
}
UNSAFE_componentWillReceiveProps(props: RX.Types.CommonStyledProps<RX.Types.StyleRuleSet<object>, C>) {
this._updateStyles(props);
}
setValue(valueObject: Value, newValue: number | string): void {
// We should never get here if the component isn't mounted,
// but we'll add this additional protection.
if (!this._mountedComponent) {
return;
}
const attrib = this._findAnimatedAttributeByValue(this._animatedAttributes, valueObject);
if (attrib) {
const domNode = this._getDomNode();
if (domNode) {
const cssValue = this._generateCssAttributeValue(attrib, valueObject._getOutputValue());
(domNode.style as any)[attrib] = cssValue;
}
return;
}
const transform = this._findAnimatedAttributeByValue(this._animatedTransforms, valueObject);
if (transform) {
const domNode = this._getDomNode();
if (domNode) {
domNode.style.transform = this._generateCssTransformList(true);
}
}
}
startTransition(valueObject: Value, fromValue: number | string, toValue: number | string, duration: number,
easing: string, delay: number, onEnd: RX.Types.Animated.EndCallback): void {
// We should never get here if the component isn't mounted,
// but we'll add this additional protection.
if (!this._mountedComponent) {
return;
}
let updateTransition = false;
const attrib = this._findAnimatedAttributeByValue(this._animatedAttributes, valueObject);
if (attrib) {
if (this._animatedAttributes[attrib].activeTransition) {
if (AppConfig.isDevelopmentMode()) {
console.error('Animation started while animation was already pending');
}
}
this._animatedAttributes[attrib].activeTransition = {
property: Styles.convertJsToCssStyle(attrib),
from: this._generateCssAttributeValue(attrib, fromValue),
to: this._generateCssAttributeValue(attrib, toValue),
duration,
timing: easing,
delay,
toValue,
onEnd,
};
updateTransition = true;
}
const transform = this._findAnimatedAttributeByValue(this._animatedTransforms, valueObject);
if (transform) {
if (this._animatedTransforms[transform].activeTransition) {
if (AppConfig.isDevelopmentMode()) {
console.error('Animation started while animation was already pending');
}
}
this._animatedTransforms[transform].activeTransition = {
property: transform,
from: fromValue,
to: toValue,
duration,
timing: easing,
delay,
toValue,
onEnd,
};
updateTransition = true;
}
if (updateTransition) {
this._updateTransition();
}
}
// Stops a pending transition, returning the value at the current time.
stopTransition(valueObject: Value): number | string | undefined {
// We should never get here if the component isn't mounted,
// but we'll add this additional protection.
if (!this._mountedComponent) {
return;
}
let partialValue: number | string | undefined;
let stoppedTransition: ExtendedTransition | undefined;
let updateTransition = false;
const attrib = this._findAnimatedAttributeByValue(this._animatedAttributes, valueObject);
if (attrib) {
const activeTransition = this._animatedAttributes[attrib].activeTransition;
if (activeTransition) {
partialValue = activeTransition.toValue;
// We don't currently support updating to an intermediate
// value for interpolated values because this would involve
// mapping the interpolated value in reverse. Instead, we'll
// simply update it to the "toValue".
if (!valueObject._isInterpolated()) {
const domNode = this._getDomNode();
if (domNode) {
const computedStyle = window.getComputedStyle(domNode, undefined);
if (computedStyle && (computedStyle as any)[attrib]) {
partialValue = (computedStyle as any)[attrib];
}
}
}
stoppedTransition = this._animatedAttributes[attrib].activeTransition;
delete this._animatedAttributes[attrib].activeTransition;
updateTransition = true;
}
} else {
const transform = this._findAnimatedAttributeByValue(this._animatedTransforms, valueObject);
if (transform) {
const activeTransition = this._animatedTransforms[transform].activeTransition;
if (activeTransition) {
// We don't currently support updating to an intermediate value
// for transform values. This is because getComputedStyle
// returns a transform matrix for 'transform'. To implement this, we'd
// need to convert the matrix back to a rotation, scale, etc.
partialValue = activeTransition.toValue;
stoppedTransition = this._animatedTransforms[transform].activeTransition;
delete this._animatedTransforms[transform].activeTransition;
updateTransition = true;
}
}
}
if (stoppedTransition && stoppedTransition.onEnd) {
stoppedTransition.onEnd({ finished: false });
}
if (updateTransition) {
this._updateTransition();
}
return partialValue;
}
private _getDomNode(): HTMLElement | null {
return ReactDOM.findDOMNode(this._mountedComponent) as HTMLElement | null;
}
// Looks for the specified value object in the specified map. Returns
// the key for the map (i.e. the attribute name) if found.
private _findAnimatedAttributeByValue(map: AnimatedValueMap, valueObj: Value): string | undefined {
const keys = _.keys(map);
const index = _.findIndex(keys, key => map[key].valueObject === valueObj);
return index >= 0 ? keys[index] : undefined;
}
// Updates the "transform" CSS attribute for the element to reflect all
// active transitions.
private _updateTransition() {
// We should never get here if the component isn't mounted,
// but we'll add this additional protection.
if (!this._mountedComponent) {
return;
}
const activeTransitions: TransitionSpec[] = [];
_.each(this._animatedAttributes, attrib => {
if (attrib.activeTransition) {
activeTransitions.push(attrib.activeTransition);
}
});
// If there are any transform transitions, we need to combine
// these into a single transition. That means we can't specify
// different durations, delays or easing functions for each. That's
// an unfortunate limitation of CSS.
const keys = _.keys(this._animatedTransforms);
const index = _.findIndex(keys, key => !!this._animatedTransforms[key].activeTransition);
if (index >= 0) {
const transformTransition = this._animatedTransforms[keys[index]].activeTransition!;
activeTransitions.push({
property: 'transform',
from: this._generateCssTransformList(false),
to: this._generateCssTransformList(true),
duration: transformTransition.duration,
timing: transformTransition.timing,
delay: transformTransition.delay,
});
}
if (activeTransitions.length > 0) {
const domNode = this._getDomNode();
if (domNode) {
executeTransition(domNode, activeTransitions, () => {
// Clear all of the active transitions and invoke the onEnd callbacks.
const completeTransitions: ExtendedTransition[] = [];
_.each(this._animatedAttributes, attrib => {
if (attrib.activeTransition) {
completeTransitions.push(attrib.activeTransition);
delete attrib.activeTransition;
}
});
_.each(this._animatedTransforms, transform => {
if (transform.activeTransition) {
completeTransitions.push(transform.activeTransition);
delete transform.activeTransition;
}
});
_.each(completeTransitions, transition => {
if (transition.onEnd) {
transition.onEnd({ finished: true });
}
});
});
}
}
}
// Generates the CSS value for the specified attribute given
// an animated value object.
private _generateCssAttributeValue(attrib: string, newValue: number | string): string {
// If the value is a raw number, append the default units.
// If it's a string, we assume the caller has specified the units.
if (typeof newValue === 'number') {
newValue = newValue + animatedPropUnits[attrib];
}
return newValue;
}
private _generateCssTransformValue(transform: string, newValue: number | string): string {
// If the value is a raw number, append the default units.
// If it's a string, we assume the caller has specified the units.
if (typeof newValue === 'number') {
newValue = newValue + animatedPropUnits[transform];
}
return newValue;
}
// Regenerates the list of transforms, combining all static and animated transforms.
private _generateCssTransformList(useActiveValues: boolean): string {
const transformList: string[] = [];
_.each(this._staticTransforms, (value, transform) => {
transformList.push(transform + '(' + value + ')');
});
_.each(this._animatedTransforms, (value, transform) => {
const newValue = useActiveValues && value.activeTransition ?
value.activeTransition.to : value.valueObject._getOutputValue();
transformList.push(transform + '(' + this._generateCssTransformValue(transform, newValue) + ')');
});
return transformList.join(' ');
}
// Typing of `any` on StyleRuleSet isn't desirable, but there's not accurate typings that can be used to represent
// our merging of web/RX styles here here
private _updateStyles(props: RX.Types.CommonStyledProps<RX.Types.StyleRuleSet<any>, C>) {
this._propsWithoutStyle = _.omit(props, 'style');
const rawStyles = Styles.combine(props.style || {});
this._processedStyle = {};
const newAnimatedAttributes: { [transform: string]: Value } = {};
for (const attrib in rawStyles) {
// Handle transforms separately.
if (attrib === 'staticTransforms' || attrib === 'animatedTransforms') {
continue;
}
// Is this a dynamic (animated) value?
if (rawStyles[attrib] instanceof Value) {
const valueObj = rawStyles[attrib] as Value;
this._processedStyle[attrib] = this._generateCssAttributeValue(attrib, valueObj._getOutputValue());
newAnimatedAttributes[attrib] = valueObj;
} else {
// Copy the static style value.
this._processedStyle[attrib] = rawStyles[attrib];
}
}
// Handle transforms, which require special processing because they need to
// be combined into a single 'transform' CSS attribute.
this._staticTransforms = rawStyles.staticTransforms || {};
const newAnimatedTransforms: { [transform: string]: Value } = rawStyles.animatedTransforms || {};
// Update this._animatedAttributes and this._animatedTransforms so they match
// the updated style.
// Remove any previous animated attributes that are no longer present
// or associated with different value objects.
_.each(this._animatedAttributes, (value, attrib) => {
if (!newAnimatedAttributes[attrib] || newAnimatedAttributes[attrib] !== value.valueObject) {
if (value.activeTransition) {
if (AppConfig.isDevelopmentMode()) {
console.error('Animated style attribute removed while the animation was active');
}
}
value.valueObject._removeListener(this);
delete this._animatedAttributes[attrib];
}
});
// Add new animated attributes.
_.each(newAnimatedAttributes, (value, attrib) => {
if (!this._animatedAttributes[attrib]) {
this._animatedAttributes[attrib] = { valueObject: value };
if (this._mountedComponent) {
value._addListener(this);
}
}
});
// Remove any previous animated transforms that are no longer present
// or associated with different value objects.
_.each(this._animatedTransforms, (value, transform) => {
if (!newAnimatedTransforms[transform] || newAnimatedTransforms[transform] !== value.valueObject) {
if (value.activeTransition) {
if (AppConfig.isDevelopmentMode()) {
console.warn('Should not remove an animated transform attribute while the animation is active');
}
}
value.valueObject._removeListener(this);
delete this._animatedTransforms[transform];
}
});
// Add new animated transforms.
_.each(newAnimatedTransforms, (value, transform) => {
if (!this._animatedTransforms[transform]) {
this._animatedTransforms[transform] = { valueObject: value };
if (this._mountedComponent) {
value._addListener(this);
}
}
});
// Update the transform attribute in this._processedStyle.
const transformList = this._generateCssTransformList(true);
if (transformList) {
this._processedStyle.transform = transformList;
}
}
componentDidMount() {
_.each(this._animatedAttributes, value => {
value.valueObject._addListener(this);
});
_.each(this._animatedTransforms, value => {
value.valueObject._addListener(this);
});
}
componentWillUnmount() {
_.each(this._animatedAttributes, value => {
value.valueObject._removeListener(this);
});
this._animatedAttributes = {};
_.each(this._animatedTransforms, value => {
value.valueObject._removeListener(this);
});
this._animatedTransforms = {};
}
focus() {
if (this._mountedComponent && this._mountedComponent.focus) {
this._mountedComponent.focus();
}
}
requestFocus() {
if (this._mountedComponent && this._mountedComponent.requestFocus) {
this._mountedComponent.requestFocus();
}
}
blur() {
if (this._mountedComponent && this._mountedComponent.blur) {
this._mountedComponent.blur();
}
}
setFocusRestricted(restricted: boolean) {
if (this._mountedComponent && this._mountedComponent.setFocusRestricted) {
this._mountedComponent.setFocusRestricted(restricted);
}
}
setFocusLimited(limited: boolean) {
if (this._mountedComponent && this._mountedComponent.setFocusLimited) {
this._mountedComponent.setFocusLimited(limited);
}
}
render() {
return (
<Component
style={ this._processedStyle }
{ ...this._propsWithoutStyle }
ref={ this._onMount }
>
{ this.props.children }
</Component>
);
}
protected _onMount = (component: any) => {
this._mountedComponent = component;
};
// Update the component's display name for easy debugging in react devtools extension
static displayName = `Animated.${Component.displayName || Component.name || 'Component'}`;
}
return AnimatedComponentGenerated;
}
export const Image = createAnimatedComponent(RXImage) as typeof RX.AnimatedImage;
export const Text = createAnimatedComponent(RXText) as typeof RX.AnimatedText;
export const TextInput = createAnimatedComponent(RXTextInput) as typeof RX.AnimatedTextInput;
export const View = createAnimatedComponent(RXView) as typeof RX.AnimatedView;
export type Image = RX.AnimatedImage;
export type Text = RX.AnimatedText;
export type TextInput = RX.AnimatedTextInput;
export type View = RX.AnimatedView;
export const createValue: (initialValue: number) => Value = function(initialValue: number) {
return new Value(initialValue);
};
export const interpolate: (value: Value, inputRange: number[], outputRange: string[]) => Value =
function(value: Value, inputRange: number[], outputRange: string[]) {
return value.interpolate({ inputRange: inputRange, outputRange: outputRange });
};
export { Easing };