diff options
Diffstat (limited to 'app/javascript/flavours/glitch/components/column_back_button.js')
-rw-r--r-- | app/javascript/flavours/glitch/components/column_back_button.js | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/app/javascript/flavours/glitch/components/column_back_button.js b/app/javascript/flavours/glitch/components/column_back_button.js new file mode 100644 index 000000000..05688f867 --- /dev/null +++ b/app/javascript/flavours/glitch/components/column_back_button.js @@ -0,0 +1,60 @@ +import React from 'react'; +import { FormattedMessage } from 'react-intl'; +import PropTypes from 'prop-types'; +import Icon from 'flavours/glitch/components/icon'; +import { createPortal } from 'react-dom'; + +export default class ColumnBackButton extends React.PureComponent { + + static contextTypes = { + router: PropTypes.object, + }; + + static propTypes = { + multiColumn: PropTypes.bool, + }; + + handleClick = (event) => { + // if history is exhausted, or we would leave mastodon, just go to root. + if (window.history.state) { + const state = this.context.router.history.location.state; + if (event.shiftKey && state && state.mastodonBackSteps) { + this.context.router.history.go(-state.mastodonBackSteps); + } else { + this.context.router.history.goBack(); + } + } else { + this.context.router.history.push('/'); + } + } + + 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); + } + } + } + +} |