120 lines
3.5 KiB
JavaScript
120 lines
3.5 KiB
JavaScript
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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import React, {PureComponent} from 'react';
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import {ScrollView, StyleSheet, View} from 'react-native';
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import PropTypes from 'prop-types';
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import Markdown from 'app/components/markdown';
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import ShowMoreButton from 'app/components/show_more_button';
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import CustomPropTypes from 'app/constants/custom_prop_types';
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const SHOW_MORE_HEIGHT = 60;
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export default class AttachmentText extends PureComponent {
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static propTypes = {
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baseTextStyle: CustomPropTypes.Style.isRequired,
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blockStyles: PropTypes.object.isRequired,
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deviceHeight: PropTypes.number.isRequired,
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hasThumbnail: PropTypes.bool,
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metadata: PropTypes.object,
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navigator: PropTypes.object.isRequired,
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onPermalinkPress: PropTypes.func,
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textStyles: PropTypes.object.isRequired,
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value: PropTypes.string,
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};
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static getDerivedStateFromProps(nextProps, prevState) {
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const {deviceHeight} = nextProps;
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const maxHeight = Math.round((deviceHeight * 0.4) + SHOW_MORE_HEIGHT);
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if (maxHeight !== prevState.maxHeight) {
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return {
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maxHeight,
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};
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}
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return null;
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}
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constructor(props) {
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super(props);
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this.state = {
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collapsed: true,
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isLongText: false,
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};
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}
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handleLayout = (event) => {
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const {height} = event.nativeEvent.layout;
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const {maxHeight} = this.state;
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if (height >= maxHeight) {
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this.setState({
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isLongText: true,
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});
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}
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};
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toggleCollapseState = () => {
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const {collapsed} = this.state;
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this.setState({collapsed: !collapsed});
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};
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render() {
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const {
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baseTextStyle,
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blockStyles,
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hasThumbnail,
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metadata,
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navigator,
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onPermalinkPress,
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value,
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textStyles,
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} = this.props;
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const {collapsed, isLongText, maxHeight} = this.state;
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if (!value) {
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return null;
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}
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return (
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<View style={hasThumbnail && style.container}>
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<ScrollView
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style={{maxHeight: (collapsed ? maxHeight : null), overflow: 'hidden'}}
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scrollEnabled={false}
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showsVerticalScrollIndicator={false}
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showsHorizontalScrollIndicator={false}
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>
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<View
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onLayout={this.handleLayout}
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removeClippedSubviews={isLongText && collapsed}
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>
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<Markdown
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baseTextStyle={baseTextStyle}
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textStyles={textStyles}
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blockStyles={blockStyles}
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imagesMetadata={metadata?.images}
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value={value}
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navigator={navigator}
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onPermalinkPress={onPermalinkPress}
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/>
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</View>
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</ScrollView>
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{isLongText &&
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<ShowMoreButton
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onPress={this.toggleCollapseState}
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showMore={collapsed}
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/>
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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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const style = StyleSheet.create({
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container: {
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paddingRight: 60,
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},
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});
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