50 lines
1.3 KiB
JavaScript
50 lines
1.3 KiB
JavaScript
import Evented from '@ember/object/evented';
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import Service from '@ember/service';
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import {run} from '@ember/runloop';
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const MEDIA_QUERIES = {
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maxWidth600: '(max-width: 600px)',
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isMobile: '(max-width: 800px)',
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maxWidth900: '(max-width: 900px)',
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maxWidth1000: '(max-width: 1000px)'
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};
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export default Service.extend(Evented, {
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init() {
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this._super(...arguments);
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this._handlers = [];
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this.loadQueries(MEDIA_QUERIES);
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},
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loadQueries(queries) {
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Object.keys(queries).forEach((key) => {
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this.loadQuery(key, queries[key]);
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});
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},
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loadQuery(key, queryString) {
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let query = window.matchMedia(queryString);
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this.set(key, query.matches);
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let handler = run.bind(this, () => {
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let lastValue = this.get(key);
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let newValue = query.matches;
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if (lastValue !== newValue) {
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this.set(key, newValue);
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this.trigger('change', key, newValue);
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}
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});
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query.addListener(handler);
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this._handlers.push([query, handler]);
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},
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willDestroy() {
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this._handlers.forEach(([query, handler]) => {
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query.removeListener(handler);
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});
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this._super(...arguments);
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}
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});
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