mirror of https://github.com/trezor/trezor-wallet
slowbackspace
5 years ago
parent
06343ac2a2
commit
ea2f8993b0
@ -1,189 +0,0 @@
|
||||
/* @flow */
|
||||
|
||||
import * as React from 'react';
|
||||
import raf from 'raf';
|
||||
import { getViewportHeight, getScrollX, getScrollY } from 'utils/windowUtils';
|
||||
import styled from 'styled-components';
|
||||
import colors from 'config/colors';
|
||||
|
||||
type Props = {
|
||||
children?: React.Node,
|
||||
}
|
||||
|
||||
type State = {
|
||||
prevScrollY: number;
|
||||
asideMinHeight: number,
|
||||
wrapperTopOffset: number,
|
||||
wrapperLeftOffset: number,
|
||||
wrapperBottomPadding: number,
|
||||
footerFixed: boolean,
|
||||
}
|
||||
|
||||
const AsideWrapper = styled.aside.attrs(props => ({
|
||||
style: { minHeight: props.minHeight },
|
||||
}))`
|
||||
|
||||
position: relative;
|
||||
top: 0px;
|
||||
width: 320px;
|
||||
min-width: 320px;
|
||||
overflow: hidden;
|
||||
background: ${colors.MAIN};
|
||||
border-right: 1px solid ${colors.DIVIDER};
|
||||
border-top-left-radius: 4px;
|
||||
|
||||
@media screen and (max-width: 1170px) {
|
||||
border-top-left-radius: 0px;
|
||||
}
|
||||
`;
|
||||
|
||||
const StickyContainerWrapper = styled.div.attrs(props => ({
|
||||
style: {
|
||||
top: props.top,
|
||||
left: props.left,
|
||||
paddingBottom: props.paddingBottom,
|
||||
},
|
||||
}))`
|
||||
position: fixed;
|
||||
border-right: 1px solid ${colors.DIVIDER};
|
||||
width: 320px;
|
||||
overflow: hidden;
|
||||
`;
|
||||
|
||||
export default class StickyContainer extends React.PureComponent<Props, State> {
|
||||
constructor() {
|
||||
super();
|
||||
this.state = {
|
||||
prevScrollY: 0,
|
||||
asideMinHeight: 0,
|
||||
wrapperTopOffset: 0,
|
||||
wrapperLeftOffset: 0,
|
||||
wrapperBottomPadding: 0,
|
||||
footerFixed: false,
|
||||
};
|
||||
}
|
||||
|
||||
componentDidMount() {
|
||||
window.addEventListener('scroll', this.handleScroll);
|
||||
window.addEventListener('resize', this.handleScroll);
|
||||
this.update();
|
||||
}
|
||||
|
||||
componentDidUpdate(prevProps: Props, newState: State) {
|
||||
// recalculate view only if props was changed
|
||||
// ignore when state is changed
|
||||
if (this.state === newState) raf(this.update);
|
||||
}
|
||||
|
||||
componentWillUnmount() {
|
||||
window.removeEventListener('scroll', this.handleScroll);
|
||||
window.removeEventListener('resize', this.handleScroll);
|
||||
}
|
||||
|
||||
update = () => {
|
||||
this.recalculatePosition();
|
||||
}
|
||||
|
||||
handleScroll = () => raf(this.update);
|
||||
|
||||
asideRefCallback = (element: ?HTMLElement) => {
|
||||
this.aside = element;
|
||||
}
|
||||
|
||||
wrapperRefCallback = (element: ?HTMLElement) => {
|
||||
this.wrapper = element;
|
||||
}
|
||||
|
||||
footerRefCallback = (element: ?HTMLElement) => {
|
||||
this.footer = element;
|
||||
}
|
||||
|
||||
aside: ?HTMLElement;
|
||||
|
||||
wrapper: ?HTMLElement;
|
||||
|
||||
footer: ?HTMLElement;
|
||||
|
||||
recalculatePosition() {
|
||||
const { aside, wrapper, footer } = this;
|
||||
if (!aside || !wrapper || !footer) return;
|
||||
|
||||
const viewportHeight = getViewportHeight();
|
||||
const asideBounds = aside.getBoundingClientRect();
|
||||
const wrapperBounds = wrapper.getBoundingClientRect();
|
||||
const footerBounds = footer.getBoundingClientRect();
|
||||
const isHeaderFixed = asideBounds.top < 0;
|
||||
const isWrapperBiggerThanViewport = wrapperBounds.height > viewportHeight;
|
||||
const state = { ...this.state };
|
||||
|
||||
const scrollX = getScrollX();
|
||||
const scrollY = getScrollY();
|
||||
|
||||
if (isHeaderFixed) {
|
||||
if (isWrapperBiggerThanViewport) {
|
||||
const scrollDirection = scrollY >= state.prevScrollY ? 'down' : 'up';
|
||||
const topOutOfBounds: boolean = (wrapperBounds.top > 0 && scrollDirection === 'up');
|
||||
const bottomOutOfBounds: boolean = (footerBounds.bottom <= viewportHeight && scrollDirection === 'down');
|
||||
if (!topOutOfBounds && !bottomOutOfBounds) {
|
||||
// neither "top" or "bottom" was reached
|
||||
// scroll whole wrapper
|
||||
const distanceScrolled = Math.abs(scrollY - state.prevScrollY);
|
||||
state.wrapperTopOffset += scrollDirection === 'down' ? -distanceScrolled : distanceScrolled;
|
||||
}
|
||||
}
|
||||
// make sure that wrapper will not be over scrolled
|
||||
if (state.wrapperTopOffset > 0) state.wrapperTopOffset = 0;
|
||||
const maxScrollTop = viewportHeight - wrapperBounds.height;
|
||||
if (maxScrollTop < 0 && state.wrapperTopOffset < maxScrollTop) state.wrapperTopOffset = maxScrollTop;
|
||||
} else {
|
||||
// update wrapper "top" to be same as "aside" element
|
||||
state.wrapperTopOffset = asideBounds.top;
|
||||
}
|
||||
|
||||
if (isWrapperBiggerThanViewport) {
|
||||
state.footerFixed = false;
|
||||
} else if (state.footerFixed) {
|
||||
if (footerBounds.top < wrapperBounds.bottom - footerBounds.height) {
|
||||
state.footerFixed = false;
|
||||
}
|
||||
} else if (footerBounds.bottom < viewportHeight) {
|
||||
state.footerFixed = asideBounds.height > wrapperBounds.height;
|
||||
}
|
||||
|
||||
state.prevScrollY = scrollY;
|
||||
state.asideMinHeight = wrapperBounds.height;
|
||||
state.wrapperBottomPadding = state.footerFixed ? footerBounds.height : 0;
|
||||
// update wrapper "left" position
|
||||
state.wrapperLeftOffset = scrollX > 0 ? -scrollX : asideBounds.left;
|
||||
|
||||
this.setState(state);
|
||||
}
|
||||
|
||||
render() {
|
||||
return (
|
||||
<AsideWrapper
|
||||
footerFixed={this.state.footerFixed}
|
||||
minHeight={this.state.asideMinHeight}
|
||||
ref={this.asideRefCallback}
|
||||
onScroll={this.handleScroll}
|
||||
onTouchStart={this.handleScroll}
|
||||
onTouchMove={this.handleScroll}
|
||||
onTouchEnd={this.handleScroll}
|
||||
>
|
||||
<StickyContainerWrapper
|
||||
paddingBottom={this.state.wrapperBottomPadding}
|
||||
top={this.state.wrapperTopOffset}
|
||||
left={this.state.wrapperLeftOffset}
|
||||
ref={this.wrapperRefCallback}
|
||||
>
|
||||
{React.Children.map(this.props.children, (child) => { // eslint-disable-line arrow-body-style
|
||||
return child.key === 'sticky-footer' ? React.cloneElement(child, {
|
||||
ref: this.footerRefCallback,
|
||||
position: this.state.footerFixed ? 'fixed' : 'relative',
|
||||
}) : child;
|
||||
})}
|
||||
</StickyContainerWrapper>
|
||||
</AsideWrapper>
|
||||
);
|
||||
}
|
||||
}
|
||||
Loading…
Reference in new issue