ответвлён от vergnet/application-amicale
145 строки
3,9 КиБ
JavaScript
145 строки
3,9 КиБ
JavaScript
/*
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* Copyright (c) 2019 - 2020 Arnaud Vergnet.
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*
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* This file is part of Campus INSAT.
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*
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* Campus INSAT is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Campus INSAT is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Campus INSAT. If not, see <https://www.gnu.org/licenses/>.
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*/
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// @flow
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import * as React from 'react';
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import {IconButton, Text} from 'react-native-paper';
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import ImageViewer from 'react-native-image-zoom-viewer';
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import {StackNavigationProp} from '@react-navigation/stack';
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import * as Animatable from 'react-native-animatable';
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type PropsType = {
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navigation: StackNavigationProp,
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route: {params: {images: Array<{url: string}>}},
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};
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class ImageGalleryScreen extends React.Component<PropsType> {
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images: Array<{url: string}>;
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closeButtonRef: {current: null | Animatable.View};
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indicatorRef: {current: null | Animatable.View};
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controlsShown: boolean;
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constructor(props: PropsType) {
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super(props);
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this.closeButtonRef = React.createRef();
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this.indicatorRef = React.createRef();
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this.controlsShown = true;
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if (props.route.params != null) this.images = props.route.params.images;
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}
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goBack = () => {
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const {navigation} = this.props;
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navigation.goBack();
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};
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getRenderHeader = (): React.Node => {
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return (
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<Animatable.View
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ref={this.closeButtonRef}
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useNativeDriver
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style={{
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position: 'absolute',
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top: 10,
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left: 10,
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zIndex: 1000,
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}}>
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<IconButton
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onPress={this.goBack}
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icon="close"
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size={30}
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style={{backgroundColor: 'rgba(0,0,0,0.6)'}}
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/>
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</Animatable.View>
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);
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};
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getRenderIndicator = (
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currentIndex?: number,
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allSize?: number,
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): React.Node => {
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if (currentIndex != null && allSize != null && allSize !== 1)
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return (
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<Animatable.View
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ref={this.indicatorRef}
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useNativeDriver
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style={{
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width: '100%',
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height: 50,
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position: 'absolute',
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}}>
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<Text
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style={{
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marginLeft: 'auto',
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marginRight: 'auto',
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marginTop: 'auto',
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marginBottom: 'auto',
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fontSize: 15,
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backgroundColor: 'rgba(0,0,0,0.6)',
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padding: 10,
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borderRadius: 20,
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}}>
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{currentIndex}/{allSize}
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</Text>
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</Animatable.View>
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);
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return null;
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};
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onImageClick = () => {
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if (this.controlsShown) this.hideControls();
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else this.showControls();
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this.controlsShown = !this.controlsShown;
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};
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hideControls() {
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if (this.closeButtonRef.current != null)
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this.closeButtonRef.current.fadeOutUp(200);
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if (this.indicatorRef.current != null)
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this.indicatorRef.current.fadeOutUp(300);
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}
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showControls() {
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if (this.closeButtonRef.current != null)
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this.closeButtonRef.current.fadeInDown(300);
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if (this.indicatorRef.current != null)
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this.indicatorRef.current.fadeInDown(400);
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}
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render(): React.Node {
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return (
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<ImageViewer
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useNativeDriver
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imageUrls={this.images}
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enableSwipeDown
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onSwipeDown={this.goBack}
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renderHeader={this.getRenderHeader}
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renderIndicator={this.getRenderIndicator}
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pageAnimateTime={100}
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onClick={this.onImageClick}
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doubleClickInterval={250}
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/>
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);
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}
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}
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export default ImageGalleryScreen;
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