283 lines
9.0 KiB
JavaScript
283 lines
9.0 KiB
JavaScript
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/**
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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 Modal
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* @flow
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*/
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'use strict';
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const AppContainer = require('AppContainer');
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const I18nManager = require('I18nManager');
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const NativeEventEmitter = require('NativeEventEmitter');
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const NativeModules = require('NativeModules');
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const Platform = require('Platform');
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const React = require('React');
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const PropTypes = require('prop-types');
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const StyleSheet = require('StyleSheet');
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const View = require('View');
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const deprecatedPropType = require('deprecatedPropType');
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const requireNativeComponent = require('requireNativeComponent');
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const RCTModalHostView = requireNativeComponent('RCTModalHostView', null);
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const ModalEventEmitter = Platform.OS === 'ios' && NativeModules.ModalManager ?
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new NativeEventEmitter(NativeModules.ModalManager) : null;
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import type EmitterSubscription from 'EmitterSubscription';
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/**
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* The Modal component is a simple way to present content above an enclosing view.
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*
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* _Note: If you need more control over how to present modals over the rest of your app,
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* then consider using a top-level Navigator._
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*
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* ```javascript
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* import React, { Component } from 'react';
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* import { Modal, Text, TouchableHighlight, View } from 'react-native';
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*
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* class ModalExample extends Component {
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*
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* state = {
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* modalVisible: false,
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* }
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*
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* setModalVisible(visible) {
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* this.setState({modalVisible: visible});
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* }
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*
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* render() {
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* return (
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* <View style={{marginTop: 22}}>
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* <Modal
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* animationType="slide"
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* transparent={false}
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* visible={this.state.modalVisible}
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* onRequestClose={() => {alert("Modal has been closed.")}}
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* >
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* <View style={{marginTop: 22}}>
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* <View>
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* <Text>Hello World!</Text>
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*
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* <TouchableHighlight onPress={() => {
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* this.setModalVisible(!this.state.modalVisible)
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* }}>
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* <Text>Hide Modal</Text>
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* </TouchableHighlight>
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*
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* </View>
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* </View>
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* </Modal>
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*
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* <TouchableHighlight onPress={() => {
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* this.setModalVisible(true)
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* }}>
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* <Text>Show Modal</Text>
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* </TouchableHighlight>
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*
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* </View>
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* );
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* }
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* }
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* ```
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*/
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// In order to route onDismiss callbacks, we need to uniquely identifier each
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// <Modal> on screen. There can be different ones, either nested or as siblings.
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// We cannot pass the onDismiss callback to native as the view will be
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// destroyed before the callback is fired.
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var uniqueModalIdentifier = 0;
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class Modal extends React.Component<Object> {
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static propTypes = {
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/**
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* The `animationType` prop controls how the modal animates.
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*
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* - `slide` slides in from the bottom
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* - `fade` fades into view
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* - `none` appears without an animation
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*
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* Default is set to `none`.
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*/
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animationType: PropTypes.oneOf(['none', 'slide', 'fade']),
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/**
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* The `presentationStyle` prop controls how the modal appears (generally on larger devices such as iPad or plus-sized iPhones).
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* See https://developer.apple.com/reference/uikit/uimodalpresentationstyle for details.
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* @platform ios
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*
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* - `fullScreen` covers the screen completely
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* - `pageSheet` covers portrait-width view centered (only on larger devices)
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* - `formSheet` covers narrow-width view centered (only on larger devices)
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* - `overFullScreen` covers the screen completely, but allows transparency
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*
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* Default is set to `overFullScreen` or `fullScreen` depending on `transparent` property.
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*/
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presentationStyle: PropTypes.oneOf(['fullScreen', 'pageSheet', 'formSheet', 'overFullScreen']),
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/**
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* The `transparent` prop determines whether your modal will fill the entire view. Setting this to `true` will render the modal over a transparent background.
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*/
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transparent: PropTypes.bool,
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/**
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* The `hardwareAccelerated` prop controls whether to force hardware acceleration for the underlying window.
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* @platform android
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*/
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hardwareAccelerated: PropTypes.bool,
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/**
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* The `visible` prop determines whether your modal is visible.
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*/
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visible: PropTypes.bool,
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/**
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* The `onRequestClose` callback is called when the user taps the hardware back button on Android or the menu button on Apple TV.
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*/
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onRequestClose: (Platform.isTVOS || Platform.OS === 'android') ? PropTypes.func.isRequired : PropTypes.func,
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/**
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* The `onShow` prop allows passing a function that will be called once the modal has been shown.
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*/
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onShow: PropTypes.func,
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/**
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* The `onDismiss` prop allows passing a function that will be called once the modal has been dismissed.
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* @platform ios
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*/
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onDismiss: PropTypes.func,
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animated: deprecatedPropType(
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PropTypes.bool,
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'Use the `animationType` prop instead.'
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),
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/**
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* The `supportedOrientations` prop allows the modal to be rotated to any of the specified orientations.
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* On iOS, the modal is still restricted by what's specified in your app's Info.plist's UISupportedInterfaceOrientations field.
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* When using `presentationStyle` of `pageSheet` or `formSheet`, this property will be ignored by iOS.
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* @platform ios
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*/
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supportedOrientations: PropTypes.arrayOf(PropTypes.oneOf(['portrait', 'portrait-upside-down', 'landscape', 'landscape-left', 'landscape-right'])),
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/**
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* The `onOrientationChange` callback is called when the orientation changes while the modal is being displayed.
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* The orientation provided is only 'portrait' or 'landscape'. This callback is also called on initial render, regardless of the current orientation.
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* @platform ios
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*/
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onOrientationChange: PropTypes.func,
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};
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static defaultProps = {
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visible: true,
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hardwareAccelerated: false,
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};
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static contextTypes = {
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rootTag: PropTypes.number,
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};
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_identifier: number;
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_eventSubscription: ?EmitterSubscription;
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constructor(props: Object) {
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super(props);
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Modal._confirmProps(props);
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this._identifier = uniqueModalIdentifier++;
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}
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componentDidMount() {
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if (ModalEventEmitter) {
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this._eventSubscription = ModalEventEmitter.addListener(
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'modalDismissed',
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event => {
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if (event.modalID === this._identifier && this.props.onDismiss) {
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this.props.onDismiss();
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}
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},
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);
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}
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}
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componentWillUnmount() {
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if (this._eventSubscription) {
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this._eventSubscription.remove();
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}
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}
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componentWillReceiveProps(nextProps: Object) {
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Modal._confirmProps(nextProps);
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}
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static _confirmProps(props: Object) {
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if (props.presentationStyle && props.presentationStyle !== 'overFullScreen' && props.transparent) {
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console.warn(`Modal with '${props.presentationStyle}' presentation style and 'transparent' value is not supported.`);
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}
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}
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render(): React.Node {
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if (this.props.visible === false) {
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return null;
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}
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const containerStyles = {
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backgroundColor: this.props.transparent ? 'transparent' : 'white',
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};
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let animationType = this.props.animationType;
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if (!animationType) {
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// manually setting default prop here to keep support for the deprecated 'animated' prop
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animationType = 'none';
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if (this.props.animated) {
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animationType = 'slide';
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}
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}
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let presentationStyle = this.props.presentationStyle;
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if (!presentationStyle) {
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presentationStyle = 'fullScreen';
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if (this.props.transparent) {
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presentationStyle = 'overFullScreen';
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}
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}
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const innerChildren = __DEV__ ?
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( <AppContainer rootTag={this.context.rootTag}>
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{this.props.children}
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</AppContainer>) :
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this.props.children;
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return (
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<RCTModalHostView
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animationType={animationType}
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presentationStyle={presentationStyle}
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transparent={this.props.transparent}
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hardwareAccelerated={this.props.hardwareAccelerated}
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onRequestClose={this.props.onRequestClose}
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onShow={this.props.onShow}
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identifier={this._identifier}
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style={styles.modal}
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onStartShouldSetResponder={this._shouldSetResponder}
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supportedOrientations={this.props.supportedOrientations}
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onOrientationChange={this.props.onOrientationChange}
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>
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<View style={[styles.container, containerStyles]}>
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{innerChildren}
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</View>
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</RCTModalHostView>
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);
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}
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// We don't want any responder events bubbling out of the modal.
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_shouldSetResponder(): boolean {
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return true;
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}
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}
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const side = I18nManager.isRTL ? 'right' : 'left';
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const styles = StyleSheet.create({
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modal: {
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position: 'absolute',
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},
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container: {
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position: 'absolute',
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[side] : 0,
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top: 0,
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}
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});
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module.exports = Modal;
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