25 lines
756 B
JavaScript
25 lines
756 B
JavaScript
import Ember from 'ember';
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import Mixin from '@ember/object/mixin';
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import { assert } from '@ember/debug';
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import { on } from '@ember/object/evented';
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// eslint-disable-next-line ember/no-new-mixins
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export default Mixin.create({
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visibilityHandler() {
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assert('visibilityHandler needs to be overridden in the Component', false);
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},
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setupDocumentVisibility: on('init', function() {
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if (!Ember.testing) {
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this.set('_visibilityHandler', this.visibilityHandler.bind(this));
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document.addEventListener('visibilitychange', this._visibilityHandler);
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}
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}),
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removeDocumentVisibility: on('init', function() {
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if (!Ember.testing) {
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document.removeEventListener('visibilitychange', this._visibilityHandler);
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}
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}),
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});
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