YouTransfer/YouTransfer

/*jslint browser: true*/
'use strict';

// ------------------------------------------------------------------------------------------ Component Dependencies

var $ = require('jquery');

// ------------------------------------------------------------------------------------------ Component Variables

var COMPONENT_ATTR = 'data-async';
var COMPONENT_SELECTOR = '[' + COMPONENT_ATTR + ']';
var CLICK_EVENT_NAMESPACED = 'click.anchor.async';
var TARGET_ATTRIBUTE = 'data-target';
var TITLE_ATTRIBUTE = 'data-title';

// ------------------------------------------------------------------------------------------ Component Definition

function Anchor(element) {
    var component = this;
    component.$element = $(element);

    component.$element.off(CLICK_EVENT_NAMESPACED);
    component.$element.on(CLICK_EVENT_NAMESPACED, function (e) {
        e.preventDefault();

        var url = this.getAttribute('href');
        var target = this.getAttribute(TARGET_ATTRIBUTE);
        var title = this.getAttribute(TITLE_ATTRIBUTE) || document.title;

        $.get(url).done(function(response) {
            var content = $(response.output);
            $('#' + target).replaceWith(content);
            $(document).trigger('xhr.loaded', [ element, content ]);
            $(document).trigger('component.anchor.success');

            if(history.pushState) {
                history.pushState(null, title, url);
            }
        });
    });
}

// ------------------------------------------------------------------------------------------ Component Initialization

$(COMPONENT_SELECTOR).each(function(index, element) {
    return new Anchor(element);
});

$(document).on('xhr.loaded', function(event, element, target) {
    $(target).find(COMPONENT_SELECTOR).each(function(index, item) {
        return new Anchor(item);
    });
});

// ------------------------------------------------------------------------------------------ Component Exposure

module.exports = Anchor;