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59 lines
1.7 KiB
JavaScript
59 lines
1.7 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 AnimationExperimentalMixin
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* @flow
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*/
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'use strict';
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var AnimationUtils = require('AnimationUtils');
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var RCTAnimationManager = require('NativeModules').AnimationExperimentalManager;
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var invariant = require('invariant');
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type EasingFunction = (t: number) => number;
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/**
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* This is an experimental module that is under development, incomplete,
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* potentially buggy, not used in any production apps, and will probably change
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* in non-backward compatible ways.
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*
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* Use at your own risk.
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*/
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var AnimationExperimentalMixin = {
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getInitialState: function(): Object {
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return {};
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},
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startAnimation: function(
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refKey: string,
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duration: number,
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delay: number,
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easing: (string | EasingFunction),
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properties: {[key: string]: any}
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): number {
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var ref = this.refs[refKey];
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invariant(
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ref,
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'Invalid refKey ' + refKey + '; ' +
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'valid refs: ' + JSON.stringify(Object.keys(this.refs))
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);
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var nodeHandle = +ref.getNodeHandle();
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var easingSample = AnimationUtils.evaluateEasingFunction(duration, easing);
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var tag: number = RCTAnimationManager.startAnimation(nodeHandle, AnimationUtils.allocateTag(), duration, delay, easingSample, properties);
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return tag;
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},
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stopAnimation: function(tag: number) {
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RCTAnimationManager.stopAnimation(tag);
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},
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};
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module.exports = AnimationExperimentalMixin;
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