155 lines
3.5 KiB
JavaScript
155 lines
3.5 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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* @providesModule LayoutAnimation
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* @flow
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*/
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'use strict';
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var PropTypes = require('ReactPropTypes');
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var UIManager = require('UIManager');
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var createStrictShapeTypeChecker = require('createStrictShapeTypeChecker');
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var keyMirror = require('fbjs/lib/keyMirror');
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var TypesEnum = {
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spring: true,
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linear: true,
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easeInEaseOut: true,
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easeIn: true,
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easeOut: true,
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keyboard: true,
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};
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var Types = keyMirror(TypesEnum);
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var PropertiesEnum = {
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opacity: true,
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scaleXY: true,
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};
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var Properties = keyMirror(PropertiesEnum);
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var animChecker = createStrictShapeTypeChecker({
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duration: PropTypes.number,
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delay: PropTypes.number,
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springDamping: PropTypes.number,
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initialVelocity: PropTypes.number,
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type: PropTypes.oneOf(
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Object.keys(Types)
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),
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property: PropTypes.oneOf( // Only applies to create/delete
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Object.keys(Properties)
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),
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});
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type Anim = {
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duration?: number;
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delay?: number;
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springDamping?: number;
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initialVelocity?: number;
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type?: $Enum<typeof TypesEnum>;
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property?: $Enum<typeof PropertiesEnum>;
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}
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var configChecker = createStrictShapeTypeChecker({
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duration: PropTypes.number.isRequired,
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create: animChecker,
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update: animChecker,
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delete: animChecker,
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});
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type Config = {
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duration: number;
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create?: Anim;
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update?: Anim;
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delete?: Anim;
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}
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function configureNext(config: Config, onAnimationDidEnd?: Function) {
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configChecker({config}, 'config', 'LayoutAnimation.configureNext');
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UIManager.configureNextLayoutAnimation(
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config, onAnimationDidEnd || function() {}, function() { /* unused */ }
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);
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}
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function create(duration: number, type, creationProp): Config {
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return {
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duration,
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create: {
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type,
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property: creationProp,
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},
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update: {
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type,
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},
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};
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}
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var Presets = {
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easeInEaseOut: create(
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300, Types.easeInEaseOut, Properties.opacity
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),
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linear: create(
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500, Types.linear, Properties.opacity
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),
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spring: {
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duration: 700,
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create: {
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type: Types.linear,
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property: Properties.opacity,
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},
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update: {
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type: Types.spring,
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springDamping: 0.4,
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},
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},
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};
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/**
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* Automatically animates views to their new positions when the
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* next layout happens.
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*
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* A common way to use this API is to call `LayoutAnimation.configureNext`
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* before calling `setState`.
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*/
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var LayoutAnimation = {
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/**
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* Schedules an animation to happen on the next layout.
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*
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* @param config Specifies animation properties:
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*
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* - `duration` in milliseconds
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* - `create`, config for animating in new views (see `Anim` type)
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* - `update`, config for animating views that have been updated
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* (see `Anim` type)
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*
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* @param onAnimationDidEnd Called when the animation finished.
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* Only supported on iOS.
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* @param onError Called on error. Only supported on iOS.
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*/
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configureNext,
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/**
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* Helper for creating a config for `configureNext`.
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*/
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create,
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Types,
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Properties,
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configChecker: configChecker,
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Presets,
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easeInEaseOut: configureNext.bind(
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null, Presets.easeInEaseOut
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),
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linear: configureNext.bind(
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null, Presets.linear
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),
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spring: configureNext.bind(
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null, Presets.spring
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),
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};
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module.exports = LayoutAnimation;
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