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28649b8cf0
Summary:Per offline discussion with ericvicenti, we'd like to reudce the complexity by keeping <NavigationCard /> nothing more than just a simple `<Animated.View />`, which helps us to avoid over generalize the styles, gestures of what the Navigation card needs to be. The proposalis to use the same props (NavigationSceneRendererProps) that is used to render the scene to generate the style and pan handlers needed for the navigation card. No behavior changes, just implementation details clean up work. Reviewed By: ericvicenti Differential Revision: D3037225 fb-gh-sync-id: f6e718a282d25a319f5d8efd3e2ffebc66b2c8cb shipit-source-id: f6e718a282d25a319f5d8efd3e2ffebc66b2c8cb
57 lines
1.4 KiB
JavaScript
57 lines
1.4 KiB
JavaScript
/**
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* Copyright (c) 2013-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 NavigationAbstractPanResponder
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* @flow
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*/
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'use strict';
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const PanResponder = require('PanResponder');
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const invariant = require('fbjs/lib/invariant');
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import type {
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NavigationPanPanHandlers,
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} from 'NavigationTypeDefinition';
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const EmptyPanHandlers = {
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onMoveShouldSetPanResponder: null,
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onPanResponderGrant: null,
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onPanResponderMove: null,
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onPanResponderRelease: null,
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onPanResponderTerminate: null,
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};
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/**
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* Abstract class that defines the common interface of PanResponder that handles
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* the gesture actions.
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*/
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class NavigationAbstractPanResponder {
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panHandlers: NavigationPanPanHandlers;
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constructor() {
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const config = {};
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Object.keys(EmptyPanHandlers).forEach(name => {
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const fn: any = (this: any)[name];
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invariant(
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typeof fn === 'function',
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'subclass of `NavigationAbstractPanResponder` must implement method %s',
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name
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);
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config[name] = fn.bind(this);
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}, this);
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this.panHandlers = PanResponder.create(config).panHandlers;
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}
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}
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module.exports = NavigationAbstractPanResponder;
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