source: pro-violet-viettel/docs/template/assets/js/uncompressed/fuelux/fuelux.wizard.js @ 400

/*
 * Fuel UX Wizard
 * https://github.com/ExactTarget/fuelux
 *
 * Copyright (c) 2012 ExactTarget
 * Licensed under the MIT license.
 */

(function($ , undefined) {

        //var $ = require('jquery');


        // WIZARD CONSTRUCTOR AND PROTOTYPE

        var Wizard = function (element, options) {
                var kids;

                this.$element = $(element);
                this.options = $.extend({}, $.fn.wizard.defaults, options);
                this.currentStep = 1;
                this.numSteps = this.$element.find('li').length;
                this.$prevBtn = this.$element.find('button.btn-prev');
                this.$nextBtn = this.$element.find('button.btn-next');

                kids = this.$nextBtn.children().detach();
                this.nextText = $.trim(this.$nextBtn.text());
                this.$nextBtn.append(kids);

                // handle events
                this.$prevBtn.on('click', $.proxy(this.previous, this));
                this.$nextBtn.on('click', $.proxy(this.next, this));
                this.$element.on('click', 'li.complete', $.proxy(this.stepclicked, this));
                
                this.$stepContainer = this.$element.data('target') || 'body';
                this.$stepContainer = $(this.$stepContainer);
        };

        Wizard.prototype = {

                constructor: Wizard,

                setState: function () {
                        var canMovePrev = (this.currentStep > 1);
                        var firstStep = (this.currentStep === 1);
                        var lastStep = (this.currentStep === this.numSteps);

                        // disable buttons based on current step
                        this.$prevBtn.attr('disabled', (firstStep === true || canMovePrev === false));

                        // change button text of last step, if specified
                        var data = this.$nextBtn.data();
                        if (data && data.last) {
                                this.lastText = data.last;
                                if (typeof this.lastText !== 'undefined') {
                                        // replace text
                                        var text = (lastStep !== true) ? this.nextText : this.lastText;
                                        var kids = this.$nextBtn.children().detach();
                                        this.$nextBtn.text(text).append(kids);
                                }
                        }

                        // reset classes for all steps
                        var $steps = this.$element.find('li');
                        $steps.removeClass('active').removeClass('complete');
                        $steps.find('span.badge').removeClass('badge-info').removeClass('badge-success');

                        // set class for all previous steps
                        var prevSelector = 'li:lt(' + (this.currentStep - 1) + ')';
                        var $prevSteps = this.$element.find(prevSelector);
                        $prevSteps.addClass('complete');
                        $prevSteps.find('span.badge').addClass('badge-success');

                        // set class for current step
                        var currentSelector = 'li:eq(' + (this.currentStep - 1) + ')';
                        var $currentStep = this.$element.find(currentSelector);
                        $currentStep.addClass('active');
                        $currentStep.find('span.badge').addClass('badge-info');

                        // set display of target element
                        var target = $currentStep.data().target;
                        //$('.step-pane').removeClass('active');
                        this.$stepContainer.find('.step-pane').removeClass('active');
                        $(target).addClass('active');

                        this.$element.trigger('changed');
                },

                stepclicked: function (e) {
                        var li = $(e.currentTarget);

                        var index = this.$element.find('li').index(li);

                        var evt = $.Event('stepclick');
                        this.$element.trigger(evt, {step: index + 1});
                        if (evt.isDefaultPrevented()) return;

                        this.currentStep = (index + 1);
                        this.setState();
                },

                previous: function () {
                        var canMovePrev = (this.currentStep > 1);
                        if (canMovePrev) {
                                var e = $.Event('change');
                                this.$element.trigger(e, {step: this.currentStep, direction: 'previous'});
                                if (e.isDefaultPrevented()) return;

                                this.currentStep -= 1;
                                this.setState();
                        }
                },

                next: function () {
                        var canMoveNext = (this.currentStep + 1 <= this.numSteps);
                        var lastStep = (this.currentStep === this.numSteps);

                        if (canMoveNext) {
                                var e = $.Event('change');
                                this.$element.trigger(e, {step: this.currentStep, direction: 'next'});

                                if (e.isDefaultPrevented()) return;

                                this.currentStep += 1;
                                this.setState();
                        }
                        else if (lastStep) {
                                this.$element.trigger('finished');
                        }
                },

                selectedItem: function (val) {
                        return {
                                step: this.currentStep
                        };
                }
        };


        // WIZARD PLUGIN DEFINITION

        $.fn.wizard = function (option, value) {
                var methodReturn;

                var $set = this.each(function () {
                        var $this = $(this);
                        var data = $this.data('wizard');
                        var options = typeof option === 'object' && option;

                        if (!data) $this.data('wizard', (data = new Wizard(this, options)));
                        if (typeof option === 'string') methodReturn = data[option](value);
                });

                return (methodReturn === undefined) ? $set : methodReturn;
        };

        $.fn.wizard.defaults = {};

        $.fn.wizard.Constructor = Wizard;


        // WIZARD DATA-API

        $(function () {
                $('body').on('mousedown.wizard.data-api', '.wizard', function () {
                        var $this = $(this);
                        if ($this.data('wizard')) return;
                        $this.wizard($this.data());
                });
        });

})(window.jQuery);