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button.js 2.8KB

    /* ======================================================================== * Bootstrap: button.js v3.1.1 * http://getbootstrap.com/javascript/#buttons * ======================================================================== * Copyright 2011-2014 Twitter, Inc. * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE) * ======================================================================== */ +function ($) { 'use strict'; // BUTTON PUBLIC CLASS DEFINITION // ============================== var Button = function (element, options) { this.$element = $(element) this.options = $.extend({}, Button.DEFAULTS, options) this.isLoading = false } Button.DEFAULTS = { loadingText: 'loading...' } Button.prototype.setState = function (state) { var d = 'disabled' var $el = this.$element var val = $el.is('input') ? 'val' : 'html' var data = $el.data() state = state + 'Text' if (!data.resetText) $el.data('resetText', $el[val]()) $el[val](data[state] || this.options[state]) // push to event loop to allow forms to submit setTimeout($.proxy(function () { if (state == 'loadingText') { this.isLoading = true $el.addClass(d).attr(d, d) } else if (this.isLoading) { this.isLoading = false $el.removeClass(d).removeAttr(d) } }, this), 0) } Button.prototype.toggle = function () { var changed = true var $parent = this.$element.closest('[data-toggle="buttons"]') if ($parent.length) { var $input = this.$element.find('input') if ($input.prop('type') == 'radio') { if ($input.prop('checked') && this.$element.hasClass('active')) changed = false else $parent.find('.active').removeClass('active') } if (changed) $input.prop('checked', !this.$element.hasClass('active')).trigger('change') } if (changed) this.$element.toggleClass('active') } // BUTTON PLUGIN DEFINITION // ======================== var old = $.fn.button $.fn.button = function (option) { return this.each(function () { var $this = $(this) var data = $this.data('bs.button') var options = typeof option == 'object' && option if (!data) $this.data('bs.button', (data = new Button(this, options))) if (option == 'toggle') data.toggle() else if (option) data.setState(option) }) } $.fn.button.Constructor = Button // BUTTON NO CONFLICT // ================== $.fn.button.noConflict = function () { $.fn.button = old return this } // BUTTON DATA-API // =============== $(document).on('click.bs.button.data-api', '[data-toggle^=button]', function (e) { var $btn = $(e.target) if (!$btn.hasClass('btn')) $btn = $btn.closest('.btn') $btn.button('toggle') e.preventDefault() }) }(jQuery);