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105 lines
2.8 KiB
JavaScript
105 lines
2.8 KiB
JavaScript
import Component from 'flarum/Component';
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import Button from 'flarum/components/Button';
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import LinkButton from 'flarum/components/LinkButton';
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/**
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* The `Navigation` component displays a set of navigation buttons. Typically
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* this is just a back button which pops the app's History. If the user is on
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* the root page and there is no history to pop, then in some instances it may
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* show a button that toggles the app's drawer.
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*
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* If the app has a pane, it will also include a 'pin' button which toggles the
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* pinned state of the pane.
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*
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* Accepts the following props:
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*
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* - `className` The name of a class to set on the root element.
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* - `drawer` Whether or not to show a button to toggle the app's drawer if
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* there is no more history to pop.
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*/
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export default class Navigation extends Component {
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view() {
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const {history, pane} = app;
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return (
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<div className={'Navigation ButtonGroup ' + (this.props.className || '')}
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onmouseenter={pane && pane.show.bind(pane)}
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onmouseleave={pane && pane.onmouseleave.bind(pane)}>
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{history.canGoBack()
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? [this.getBackButton(), this.getPaneButton()]
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: this.getDrawerButton()}
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</div>
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);
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}
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config(isInitialized, context) {
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// Since this component is 'above' the content of the page (that is, it is a
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// part of the global UI that persists between routes), we will flag the DOM
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// to be retained across route changes.
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context.retain = true;
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}
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/**
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* Get the back button.
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*
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* @return {Object}
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* @protected
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*/
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getBackButton() {
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const {history} = app;
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return LinkButton.component({
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className: 'Button Button--icon Navigation-back',
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href: history.backUrl(),
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icon: 'chevron-left',
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config: () => {},
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onclick: e => {
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if (e.shiftKey || e.ctrlKey || e.metaKey || e.which === 2) return;
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e.preventDefault();
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history.back();
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}
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});
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}
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/**
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* Get the pane pinned toggle button.
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*
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* @return {Object|String}
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* @protected
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*/
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getPaneButton() {
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const {pane} = app;
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if (!pane || !pane.active) return '';
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return Button.component({
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className: 'Button Button--icon Navigation-pin' + (pane.pinned ? ' active' : ''),
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onclick: pane.togglePinned.bind(pane),
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icon: 'thumb-tack'
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});
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}
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/**
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* Get the drawer toggle button.
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*
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* @return {Object|String}
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* @protected
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*/
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getDrawerButton() {
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if (!this.props.drawer) return '';
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const {drawer} = app;
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const user = app.session.user;
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return Button.component({
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className: 'Button Button--icon Navigation-drawer' +
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(user && user.newNotificationsCount() ? ' new' : ''),
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onclick: e => {
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e.stopPropagation();
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drawer.show();
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},
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icon: 'reorder'
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});
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}
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}
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