mirror of
https://github.com/twbs/bootstrap.git
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213 lines
5.9 KiB
JavaScript
213 lines
5.9 KiB
JavaScript
/* ========================================================================
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* Bootstrap: collapse.js v3.4.1
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* https://getbootstrap.com/docs/3.4/javascript/#collapse
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* ========================================================================
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* Copyright 2011-2019 Twitter, Inc.
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* Licensed under MIT (https://github.com/twbs/bootstrap/blob/v3-dev/LICENSE)
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* ======================================================================== */
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/* jshint latedef: false */
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+function ($) {
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'use strict';
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// COLLAPSE PUBLIC CLASS DEFINITION
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// ================================
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var Collapse = function (element, options) {
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this.$element = $(element)
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this.options = $.extend({}, Collapse.DEFAULTS, options)
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this.$trigger = $('[data-toggle="collapse"][href="#' + element.id + '"],' +
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'[data-toggle="collapse"][data-target="#' + element.id + '"]')
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this.transitioning = null
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if (this.options.parent) {
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this.$parent = this.getParent()
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} else {
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this.addAriaAndCollapsedClass(this.$element, this.$trigger)
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}
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if (this.options.toggle) this.toggle()
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}
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Collapse.VERSION = '3.4.1'
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Collapse.TRANSITION_DURATION = 350
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Collapse.DEFAULTS = {
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toggle: true
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}
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Collapse.prototype.dimension = function () {
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var hasWidth = this.$element.hasClass('width')
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return hasWidth ? 'width' : 'height'
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}
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Collapse.prototype.show = function () {
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if (this.transitioning || this.$element.hasClass('in')) return
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var activesData
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var actives = this.$parent && this.$parent.children('.panel').children('.in, .collapsing')
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if (actives && actives.length) {
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activesData = actives.data('bs.collapse')
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if (activesData && activesData.transitioning) return
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}
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var startEvent = $.Event('show.bs.collapse')
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this.$element.trigger(startEvent)
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if (startEvent.isDefaultPrevented()) return
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if (actives && actives.length) {
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Plugin.call(actives, 'hide')
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activesData || actives.data('bs.collapse', null)
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}
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var dimension = this.dimension()
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this.$element
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.removeClass('collapse')
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.addClass('collapsing')[dimension](0)
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.attr('aria-expanded', true)
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this.$trigger
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.removeClass('collapsed')
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.attr('aria-expanded', true)
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this.transitioning = 1
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var complete = function () {
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this.$element
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.removeClass('collapsing')
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.addClass('collapse in')[dimension]('')
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this.transitioning = 0
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this.$element
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.trigger('shown.bs.collapse')
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}
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if (!$.support.transition) return complete.call(this)
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var scrollSize = $.camelCase(['scroll', dimension].join('-'))
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this.$element
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.one('bsTransitionEnd', $.proxy(complete, this))
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.emulateTransitionEnd(Collapse.TRANSITION_DURATION)[dimension](this.$element[0][scrollSize])
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}
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Collapse.prototype.hide = function () {
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if (this.transitioning || !this.$element.hasClass('in')) return
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var startEvent = $.Event('hide.bs.collapse')
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this.$element.trigger(startEvent)
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if (startEvent.isDefaultPrevented()) return
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var dimension = this.dimension()
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this.$element[dimension](this.$element[dimension]())[0].offsetHeight
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this.$element
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.addClass('collapsing')
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.removeClass('collapse in')
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.attr('aria-expanded', false)
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this.$trigger
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.addClass('collapsed')
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.attr('aria-expanded', false)
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this.transitioning = 1
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var complete = function () {
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this.transitioning = 0
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this.$element
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.removeClass('collapsing')
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.addClass('collapse')
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.trigger('hidden.bs.collapse')
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}
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if (!$.support.transition) return complete.call(this)
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this.$element
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[dimension](0)
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.one('bsTransitionEnd', $.proxy(complete, this))
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.emulateTransitionEnd(Collapse.TRANSITION_DURATION)
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}
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Collapse.prototype.toggle = function () {
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this[this.$element.hasClass('in') ? 'hide' : 'show']()
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}
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Collapse.prototype.getParent = function () {
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return $(document).find(this.options.parent)
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.find('[data-toggle="collapse"][data-parent="' + this.options.parent + '"]')
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.each($.proxy(function (i, element) {
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var $element = $(element)
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this.addAriaAndCollapsedClass(getTargetFromTrigger($element), $element)
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}, this))
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.end()
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}
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Collapse.prototype.addAriaAndCollapsedClass = function ($element, $trigger) {
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var isOpen = $element.hasClass('in')
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$element.attr('aria-expanded', isOpen)
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$trigger
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.toggleClass('collapsed', !isOpen)
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.attr('aria-expanded', isOpen)
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}
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function getTargetFromTrigger($trigger) {
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var href
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var target = $trigger.attr('data-target')
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|| (href = $trigger.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '') // strip for ie7
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return $(document).find(target)
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}
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// COLLAPSE 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.collapse')
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var options = $.extend({}, Collapse.DEFAULTS, $this.data(), typeof option == 'object' && option)
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if (!data && options.toggle && /show|hide/.test(option)) options.toggle = false
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if (!data) $this.data('bs.collapse', (data = new Collapse(this, options)))
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if (typeof option == 'string') data[option]()
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})
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}
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var old = $.fn.collapse
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$.fn.collapse = Plugin
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$.fn.collapse.Constructor = Collapse
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// COLLAPSE NO CONFLICT
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// ====================
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$.fn.collapse.noConflict = function () {
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$.fn.collapse = old
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return this
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}
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// COLLAPSE DATA-API
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// =================
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$(document).on('click.bs.collapse.data-api', '[data-toggle="collapse"]', function (e) {
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var $this = $(this)
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if (!$this.attr('data-target')) e.preventDefault()
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var $target = getTargetFromTrigger($this)
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var data = $target.data('bs.collapse')
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var option = data ? 'toggle' : $this.data()
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Plugin.call($target, option)
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})
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}(jQuery);
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