43 lines
1.4 KiB
JavaScript
43 lines
1.4 KiB
JavaScript
import { getOwner } from '@ember/application';
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import Service, { inject as service } from '@ember/service';
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import { computed } from '@ember/object';
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export default Service.extend({
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router: service(),
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// currentURL is only used to listen to all transitions.
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// currentRouteName has all information necessary to compute breadcrumbs,
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// but it doesn't change when a transition to the same route with a different
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// model occurs.
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breadcrumbs: computed('router.currentURL', 'router.currentRouteName', function() {
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const owner = getOwner(this);
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const allRoutes = (this.get('router.currentRouteName') || '')
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.split('.')
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.without('')
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.map((segment, index, allSegments) => allSegments.slice(0, index + 1).join('.'));
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let crumbs = [];
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allRoutes.forEach(routeName => {
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const route = owner.lookup(`route:${routeName}`);
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// Routes can reset the breadcrumb trail to start anew even
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// if the route is deeply nested.
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if (route.resetBreadcrumbs) {
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crumbs = [];
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}
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// Breadcrumbs are either an array of static crumbs
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// or a function that returns breadcrumbs given the current
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// model for the route's controller.
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let breadcrumbs = route.breadcrumbs || [];
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if (typeof breadcrumbs === 'function') {
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breadcrumbs = breadcrumbs(route.get('controller.model')) || [];
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}
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crumbs.push(...breadcrumbs);
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});
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return crumbs;
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}),
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});
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