44 lines
1.1 KiB
JavaScript
44 lines
1.1 KiB
JavaScript
// Copyright 2014-2020 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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/* global Backbone, Whisper, _ */
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// eslint-disable-next-line func-names
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(function () {
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window.Whisper = window.Whisper || {};
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/*
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* Generic list view that watches a given collection, wraps its members in
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* a given child view and adds the child view elements to its own element.
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*/
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Whisper.ListView = Backbone.View.extend({
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tagName: 'ul',
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itemView: Backbone.View,
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initialize(options) {
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this.options = options || {};
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this.listenTo(this.collection, 'add', this.addOne);
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this.listenTo(this.collection, 'reset', this.addAll);
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},
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addOne(model) {
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if (this.itemView) {
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const options = _.extend({}, this.options.toInclude, { model });
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// eslint-disable-next-line new-cap
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const view = new this.itemView(options);
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this.$el.append(view.render().el);
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this.$el.trigger('add');
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}
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},
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addAll() {
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this.$el.html('');
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this.collection.each(this.addOne, this);
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},
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render() {
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this.addAll();
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return this;
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},
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});
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})();
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