@atlassian/aui/src/js/aui/result-set.js

Atlassian User Interface library

import Backbone from 'backbone';
import globalize from './internal/globalize';

var ResultSet = Backbone.Model.extend({
    initialize: function (options) {
        this.set('active', null, { silent: true });
        this.collection = new Backbone.Collection();
        this.collection.bind('reset', this.setActive, this);
        this.source = options.source;
        this.source.bind('respond', this.process, this);
    },

    url: false,

    process: function (response) {
        this.set('query', response.query);
        this.collection.reset(response.results);
        this.set('length', response.results.length);
        this.trigger('update', this);
    },

    setActive: function () {
        var id = arguments[0] instanceof Backbone.Collection ? false : arguments[0];
        var model = id ? this.collection.get(id) : this.collection.first();
        this.set('active', model || null);
        return this.get('active');
    },

    next: function () {
        var current = this.collection.indexOf(this.get('active'));
        var i = (current + 1) % this.get('length');
        var next = this.collection.at(i);
        return this.setActive(next && next.id);
    },

    prev: function () {
        var current = this.collection.indexOf(this.get('active'));
        var i = (current === 0 ? this.get('length') : current) - 1;
        var prev = this.collection.at(i);
        return this.setActive(prev && prev.id);
    },

    each: function () {
        return this.collection.each.apply(this.collection, arguments);
    },
});

globalize('ResultSet', ResultSet);

export default ResultSet;