forked from vergnet/application-amicale
392 lines
11 KiB
JavaScript
392 lines
11 KiB
JavaScript
// @flow
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import * as React from 'react';
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import {Image, Platform, ScrollView, View} from "react-native";
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import i18n from "i18n-js";
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import CustomModal from "../../components/CustomModal";
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import {Avatar, IconButton, List, RadioButton, Searchbar, Subheading, Text, Title, withTheme} from "react-native-paper";
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import PureFlatList from "../../components/PureFlatList";
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function sortPrice(a, b) {
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return a.price - b.price;
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}
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function sortPriceReverse(a, b) {
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return b.price - a.price;
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}
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function sortName(a, b) {
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if (a.name.toLowerCase() < b.name.toLowerCase())
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return -1;
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if (a.name.toLowerCase() > b.name.toLowerCase())
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return 1;
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return 0;
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}
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function sortNameReverse(a, b) {
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if (a.name.toLowerCase() < b.name.toLowerCase())
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return 1;
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if (a.name.toLowerCase() > b.name.toLowerCase())
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return -1;
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return 0;
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}
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type Props = {
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navigation: Object,
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route: Object,
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}
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type State = {
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currentSortMode: number,
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modalCurrentDisplayItem: React.Node,
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currentlyDisplayedData: Array<Object>,
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};
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/**
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* Class defining proximo's article list of a certain category.
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*/
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class ProximoListScreen extends React.Component<Props, State> {
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modalRef: Object;
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originalData: Array<Object>;
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shouldFocusSearchBar: boolean;
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onSearchStringChange: Function;
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onSortMenuPress: Function;
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renderItem: Function;
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onModalRef: Function;
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colors: Object;
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constructor(props) {
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super(props);
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this.originalData = this.props.route.params['data']['data'];
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this.shouldFocusSearchBar = this.props.route.params['shouldFocusSearchBar'];
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this.state = {
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currentlyDisplayedData: this.originalData.sort(sortName),
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currentSortMode: 3,
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modalCurrentDisplayItem: null,
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};
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this.onSearchStringChange = this.onSearchStringChange.bind(this);
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this.onSortMenuPress = this.onSortMenuPress.bind(this);
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this.renderItem = this.renderItem.bind(this);
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this.onModalRef = this.onModalRef.bind(this);
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this.colors = props.theme.colors;
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}
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/**
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* Creates the header content
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*/
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componentDidMount() {
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const button = this.getSortMenuButton.bind(this);
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const title = this.getSearchBar.bind(this);
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this.props.navigation.setOptions({
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headerRight: button,
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headerTitle: title,
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headerBackTitleVisible: false,
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headerTitleContainerStyle: Platform.OS === 'ios' ?
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{marginHorizontal: 0, width: '70%'} :
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{marginHorizontal: 0, right: 50, left: 50},
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});
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}
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/**
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* Gets the header search bar
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*
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* @return {*}
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*/
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getSearchBar() {
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return (
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<Searchbar
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placeholder={i18n.t('proximoScreen.search')}
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onChangeText={this.onSearchStringChange}
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/>
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);
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}
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/**
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* Gets the sort menu header button
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*
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* @return {*}
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*/
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getSortMenuButton() {
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return (
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<IconButton
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icon="sort"
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color={this.colors.text}
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size={26}
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onPress={this.onSortMenuPress}
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/>
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);
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}
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/**
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* Callback used when clicking on the sort menu button.
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* It will open the modal to show a sort selection
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*/
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onSortMenuPress() {
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this.setState({
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modalCurrentDisplayItem: this.getModalSortMenu()
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});
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if (this.modalRef) {
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this.modalRef.open();
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}
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}
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/**
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* Sets the current sort mode.
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*
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* @param mode The number representing the mode
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*/
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setSortMode(mode: number) {
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this.setState({
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currentSortMode: mode,
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});
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let data = this.state.currentlyDisplayedData;
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switch (mode) {
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case 1:
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data.sort(sortPrice);
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break;
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case 2:
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data.sort(sortPriceReverse);
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break;
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case 3:
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data.sort(sortName);
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break;
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case 4:
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data.sort(sortNameReverse);
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break;
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}
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if (this.modalRef && mode !== this.state.currentSortMode) {
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this.modalRef.close();
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}
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}
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/**
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* Gets a color depending on the quantity available
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*
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* @param availableStock The quantity available
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* @return
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*/
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getStockColor(availableStock: number) {
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let color: string;
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if (availableStock > 3)
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color = this.colors.success;
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else if (availableStock > 0)
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color = this.colors.warning;
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else
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color = this.colors.danger;
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return color;
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}
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/**
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* Sanitizes the given string to improve search performance
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*
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* @param str The string to sanitize
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* @return {string} The sanitized string
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*/
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sanitizeString(str: string): string {
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return str.toLowerCase().normalize("NFD").replace(/[\u0300-\u036f]/g, "");
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}
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/**
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* Returns only articles whose name contains the given string.
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* Case and accents insensitive.
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*
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* @param str The string used to filter article names
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* @returns {[]}
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*/
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filterData(str: string) {
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let filteredData = [];
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const testStr = this.sanitizeString(str);
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const articles = this.originalData;
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for (const article of articles) {
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const name = this.sanitizeString(article.name);
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if (name.includes(testStr)) {
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filteredData.push(article)
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}
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}
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return filteredData;
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}
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/**
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* Callback used when the search changes
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*
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* @param str The new search string
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*/
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onSearchStringChange(str: string) {
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this.setState({
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currentlyDisplayedData: this.filterData(str)
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})
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}
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/**
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* Gets the modal content depending on the given article
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*
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* @param item The article to display
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* @return {*}
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*/
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getModalItemContent(item: Object) {
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return (
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<View style={{
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flex: 1,
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padding: 20
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}}>
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<Title>{item.name}</Title>
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<View style={{
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flexDirection: 'row',
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width: '100%',
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marginTop: 10,
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}}>
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<Subheading style={{
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color: this.getStockColor(parseInt(item.quantity)),
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}}>
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{item.quantity + ' ' + i18n.t('proximoScreen.inStock')}
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</Subheading>
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<Subheading style={{marginLeft: 'auto'}}>{item.price}€</Subheading>
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</View>
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<ScrollView>
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<View style={{width: '100%', height: 150, marginTop: 20, marginBottom: 20}}>
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<Image style={{flex: 1, resizeMode: "contain"}}
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source={{uri: item.image}}/>
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</View>
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<Text>{item.description}</Text>
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</ScrollView>
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</View>
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);
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}
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/**
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* Gets the modal content to display a sort menu
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*
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* @return {*}
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*/
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getModalSortMenu() {
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return (
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<View style={{
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flex: 1,
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padding: 20
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}}>
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<Title style={{marginBottom: 10}}>{i18n.t('proximoScreen.sortOrder')}</Title>
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<RadioButton.Group
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onValueChange={value => this.setSortMode(value)}
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value={this.state.currentSortMode}
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>
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<View style={{
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flexDirection: 'row',
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justifyContent: 'flex-start',
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alignItems: 'center'
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}}>
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<RadioButton value={1}/>
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<Text>{i18n.t('proximoScreen.sortPrice')}</Text>
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</View>
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<View style={{
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flexDirection: 'row',
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justifyContent: 'flex-start',
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alignItems: 'center'
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}}>
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<RadioButton value={2}/>
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<Text>{i18n.t('proximoScreen.sortPriceReverse')}</Text>
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</View>
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<View style={{
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flexDirection: 'row',
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justifyContent: 'flex-start',
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alignItems: 'center'
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}}>
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<RadioButton value={3}/>
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<Text>{i18n.t('proximoScreen.sortName')}</Text>
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</View>
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<View style={{
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flexDirection: 'row',
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justifyContent: 'flex-start',
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alignItems: 'center'
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}}>
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<RadioButton value={4}/>
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<Text>{i18n.t('proximoScreen.sortNameReverse')}</Text>
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</View>
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</RadioButton.Group>
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</View>
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);
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}
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/**
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* Callback used when clicking an article in the list.
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* It opens the modal to show detailed information about the article
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*
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* @param item The article pressed
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*/
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onListItemPress(item: Object) {
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this.setState({
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modalCurrentDisplayItem: this.getModalItemContent(item)
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});
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if (this.modalRef) {
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this.modalRef.open();
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}
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}
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/**
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* Gets a render item for the given article
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*
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* @param item The article to render
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* @return {*}
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*/
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renderItem({item}: Object) {
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const onPress = this.onListItemPress.bind(this, item);
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return (
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<List.Item
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title={item.name}
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description={item.quantity + ' ' + i18n.t('proximoScreen.inStock')}
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descriptionStyle={{color: this.getStockColor(parseInt(item.quantity))}}
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onPress={onPress}
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left={() => <Avatar.Image style={{backgroundColor: 'transparent'}} size={64}
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source={{uri: item.image}}/>}
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right={() =>
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<Text style={{fontWeight: "bold"}}>
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{item.price}€
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</Text>}
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/>
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);
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}
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/**
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* Extracts a key for the given article
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*
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* @param item The article to extract the key from
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* @return {*} The extracted key
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*/
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keyExtractor(item: Object) {
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return item.name + item.code;
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}
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/**
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* Callback used when receiving the modal ref
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*
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* @param ref
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*/
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onModalRef(ref: Object) {
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this.modalRef = ref;
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}
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render() {
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return (
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<View style={{
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height: '100%'
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}}>
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<CustomModal onRef={this.onModalRef}>
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{this.state.modalCurrentDisplayItem}
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</CustomModal>
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<PureFlatList
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data={this.state.currentlyDisplayedData}
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keyExtractor={this.keyExtractor}
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renderItem={this.renderItem}
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updateData={this.state.currentSortMode}
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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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export default withTheme(ProximoListScreen);
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