discourse/app/assets/javascripts/admin/components/value-list.js.es6

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export default Ember.Component.extend({
classNameBindings: [':value-list'],
_setupCollection: function() {
const values = this.get('values');
this.set('collection', (values && values.length) ? values.split("\n") : []);
}.on('init').observes('values'),
_collectionChanged: function() {
this.set('values', this.get('collection').join("\n"));
}.observes('collection.@each'),
inputInvalid: Ember.computed.empty('newValue'),
keyDown(e) {
if (e.keyCode === 13) {
this.send('addValue');
}
},
actions: {
addValue() {
if (this.get('inputInvalid')) { return; }
this.get('collection').addObject(this.get('newValue'));
this.set('newValue', '');
},
removeValue(value) {
const collection = this.get('collection');
collection.removeObject(value);
}
}
});