glitchier-soc/app/javascript/mastodon/components/column_back_button.jsx

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import PropTypes from 'prop-types';
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import { PureComponent } from 'react';
import { createPortal } from 'react-dom';
import { FormattedMessage } from 'react-intl';
import { withRouter } from 'react-router-dom';
import { Icon } from 'mastodon/components/icon';
import { WithRouterPropTypes } from 'mastodon/utils/react_router';
class ColumnBackButton extends PureComponent {
static propTypes = {
multiColumn: PropTypes.bool,
onClick: PropTypes.func,
...WithRouterPropTypes,
};
handleClick = () => {
const { onClick, history } = this.props;
if (onClick) {
onClick();
} else if (history.location?.state?.fromMastodon) {
history.goBack();
} else {
history.push('/');
}
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};
render () {
const { multiColumn } = this.props;
const component = (
<button onClick={this.handleClick} className='column-back-button'>
<Icon id='chevron-left' className='column-back-button__icon' fixedWidth />
<FormattedMessage id='column_back_button.label' defaultMessage='Back' />
</button>
);
if (multiColumn) {
return component;
} else {
// The portal container and the component may be rendered to the DOM in
// the same React render pass, so the container might not be available at
// the time `render()` is called.
const container = document.getElementById('tabs-bar__portal');
if (container === null) {
// The container wasn't available, force a re-render so that the
// component can eventually be inserted in the container and not scroll
// with the rest of the area.
this.forceUpdate();
return component;
} else {
return createPortal(component, container);
}
}
}
}
export default withRouter(ColumnBackButton);