mirror of https://github.com/twbs/bootstrap.git
126 lines
3.7 KiB
JavaScript
126 lines
3.7 KiB
JavaScript
/* ========================================================================
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* Bootstrap: button.js v3.4.0
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* https://getbootstrap.com/docs/3.4/javascript/#buttons
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* ========================================================================
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* Copyright 2011-2018 Twitter, Inc.
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* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
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* ======================================================================== */
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+function ($) {
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'use strict';
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// BUTTON PUBLIC CLASS DEFINITION
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// ==============================
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var Button = function (element, options) {
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this.$element = $(element)
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this.options = $.extend({}, Button.DEFAULTS, options)
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this.isLoading = false
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}
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Button.VERSION = '3.4.0'
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Button.DEFAULTS = {
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loadingText: 'loading...'
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}
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Button.prototype.setState = function (state) {
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var d = 'disabled'
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var $el = this.$element
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var val = $el.is('input') ? 'val' : 'html'
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var data = $el.data()
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state += 'Text'
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if (data.resetText == null) $el.data('resetText', $el[val]())
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// push to event loop to allow forms to submit
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setTimeout($.proxy(function () {
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$el[val](data[state] == null ? this.options[state] : data[state])
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if (state == 'loadingText') {
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this.isLoading = true
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$el.addClass(d).attr(d, d).prop(d, true)
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} else if (this.isLoading) {
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this.isLoading = false
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$el.removeClass(d).removeAttr(d).prop(d, false)
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}
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}, this), 0)
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}
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Button.prototype.toggle = function () {
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var changed = true
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var $parent = this.$element.closest('[data-toggle="buttons"]')
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if ($parent.length) {
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var $input = this.$element.find('input')
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if ($input.prop('type') == 'radio') {
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if ($input.prop('checked')) changed = false
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$parent.find('.active').removeClass('active')
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this.$element.addClass('active')
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} else if ($input.prop('type') == 'checkbox') {
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if (($input.prop('checked')) !== this.$element.hasClass('active')) changed = false
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this.$element.toggleClass('active')
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}
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$input.prop('checked', this.$element.hasClass('active'))
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if (changed) $input.trigger('change')
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} else {
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this.$element.attr('aria-pressed', !this.$element.hasClass('active'))
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this.$element.toggleClass('active')
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}
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}
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// BUTTON PLUGIN DEFINITION
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// ========================
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function Plugin(option) {
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return this.each(function () {
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var $this = $(this)
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var data = $this.data('bs.button')
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var options = typeof option == 'object' && option
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if (!data) $this.data('bs.button', (data = new Button(this, options)))
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if (option == 'toggle') data.toggle()
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else if (option) data.setState(option)
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})
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}
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var old = $.fn.button
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$.fn.button = Plugin
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$.fn.button.Constructor = Button
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// BUTTON NO CONFLICT
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// ==================
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$.fn.button.noConflict = function () {
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$.fn.button = old
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return this
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}
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// BUTTON DATA-API
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// ===============
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$(document)
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.on('click.bs.button.data-api', '[data-toggle^="button"]', function (e) {
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var $btn = $(e.target).closest('.btn')
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Plugin.call($btn, 'toggle')
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if (!($(e.target).is('input[type="radio"], input[type="checkbox"]'))) {
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// Prevent double click on radios, and the double selections (so cancellation) on checkboxes
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e.preventDefault()
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// The target component still receive the focus
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if ($btn.is('input,button')) $btn.trigger('focus')
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else $btn.find('input:visible,button:visible').first().trigger('focus')
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}
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})
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.on('focus.bs.button.data-api blur.bs.button.data-api', '[data-toggle^="button"]', function (e) {
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$(e.target).closest('.btn').toggleClass('focus', /^focus(in)?$/.test(e.type))
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})
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}(jQuery);
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