chayns-components
Version:
A set of beautiful React components for developing chayns® applications.
155 lines (152 loc) • 4.22 kB
JavaScript
/**
* @component
*/
import classnames from 'clsx';
import PropTypes from 'prop-types';
import React, { Component } from 'react';
import ScrollViewHelper from './ScrollViewHelper';
/**
* A scrollable container with a custom scrollbar that looks great on every
* device.
*/
export default class ScrollView extends Component {
constructor(props) {
super(props);
this.handleRefreshScrollView = () => {
if (this.scrollView) {
this.scrollView.refresh();
}
};
this.state = {
contentWidth: 0
};
this.scrollTo = this.scrollTo.bind(this);
this.setContentWidth = this.setContentWidth.bind(this);
}
componentDidMount() {
const {
contentWidth
} = this.state;
this.scrollView = new ScrollViewHelper(this.node, {
wrapper: this.wrapper,
content: this.content,
bar: this.bar
});
if (contentWidth === 0) {
this.setContentWidth();
}
if (typeof ResizeObserver !== 'undefined') {
this.observer = new ResizeObserver(this.handleRefreshScrollView);
if (this.children) {
this.observer.observe(this.children);
}
}
}
componentDidUpdate() {
this.handleRefreshScrollView();
}
componentWillUnmount() {
var _this$observer;
(_this$observer = this.observer) === null || _this$observer === void 0 ? void 0 : _this$observer.disconnect();
}
setContentWidth() {
this.setState({
contentWidth: this.content.getBoundingClientRect().width - this.children.getBoundingClientRect().width + 1
});
}
scrollTo() {
if (this.content) {
this.content.scrollTo(...arguments);
}
}
render() {
const {
style,
className,
children,
scrollElementId,
scrollElementRef,
onScroll
} = this.props;
const {
contentWidth
} = this.state;
const classNames = classnames('cc__scroll-view', className, chayns.env.isMobile && 'cc__scroll-view--mobile');
return /*#__PURE__*/React.createElement("div", {
ref: ref => {
this.node = ref;
},
style: style,
className: classNames
}, /*#__PURE__*/React.createElement("div", {
className: "cc__scroll-view__wrapper",
ref: ref => {
this.wrapper = ref;
}
}, /*#__PURE__*/React.createElement("div", {
style: {
width: `calc( 100% + ${contentWidth}px)`,
maxHeight: style && style.maxHeight ? style.maxHeight : undefined,
height: style && style.height ? style.height : undefined,
overflowY: 'scroll'
},
className: "cc__scroll-view__content",
ref: ref => {
this.content = ref;
if (scrollElementRef) {
scrollElementRef(ref);
}
},
onScroll: onScroll,
id: scrollElementId
}, /*#__PURE__*/React.createElement("div", {
className: "cc__scroll-view__children",
ref: ref => {
this.children = ref;
}
}, children))), /*#__PURE__*/React.createElement("div", {
className: "cc__scroll-view__scrollbar",
ref: ref => {
this.bar = ref;
}
}));
}
}
ScrollView.propTypes = {
/**
* The contents of the `ScrollView`.
*/
children: PropTypes.oneOfType([PropTypes.node, PropTypes.arrayOf(PropTypes.node)]),
/**
* A React style object that will be applied to the outer-most container.
* Specify a `height` or `maxHeight` here.
*/
style: PropTypes.objectOf(PropTypes.oneOfType([PropTypes.number, PropTypes.string])),
/**
* A classname string that will be applied to the outer-most container.
*/
className: PropTypes.string,
/**
* A HTML id that will be applied to the scroll container.
*/
scrollElementId: PropTypes.string,
/**
* A function that receives the reference to the scroll container element as
* its first argument.
*/
scrollElementRef: PropTypes.func,
/**
* The `onScroll`-listener for the scroll container.
*/
onScroll: PropTypes.func
};
ScrollView.defaultProps = {
children: null,
style: undefined,
className: undefined,
scrollElementId: undefined,
scrollElementRef: null,
onScroll: null
};
ScrollView.displayName = 'ScrollView';
//# sourceMappingURL=ScrollView.js.map