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mirror of https://github.com/twbs/bootstrap.git synced 2024-12-04 16:24:22 +01:00
Bootstrap/js/modal.js

276 lines
7.6 KiB
JavaScript

/* ========================================================================
* Bootstrap: modal.js v3.1.1
* http://getbootstrap.com/javascript/#modals
* ========================================================================
* Copyright 2011-2014 Twitter, Inc.
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
* ======================================================================== */
+function ($) {
'use strict';
// MODAL CLASS DEFINITION
// ======================
var Modal = function (element, options) {
this.options = options
this.$body = $(document.body)
this.$element = $(element)
this.$backdrop =
this.isShown = null
this.scrollbarWidth = 0
if (this.options.remote) {
this.$element
.find('.modal-content')
.load(this.options.remote, $.proxy(function () {
this.$element.trigger('loaded.bs.modal')
}, this))
}
}
Modal.DEFAULTS = {
backdrop: true,
keyboard: true,
show: true
}
Modal.prototype.toggle = function (_relatedTarget) {
return this.isShown ? this.hide() : this.show(_relatedTarget)
}
Modal.prototype.show = function (_relatedTarget) {
var that = this
var e = $.Event('show.bs.modal', { relatedTarget: _relatedTarget })
this.$element.trigger(e)
if (this.isShown || e.isDefaultPrevented()) return
this.isShown = true
this.checkScrollbar()
this.$body.addClass('modal-open')
this.setScrollbar()
this.escape()
this.$element.on('click.dismiss.bs.modal', '[data-dismiss="modal"]', $.proxy(this.hide, this))
this.backdrop(function () {
var transition = $.support.transition && that.$element.hasClass('fade')
if (!that.$element.parent().length) {
that.$element.appendTo(that.$body) // don't move modals dom position
}
that.$element
.show()
.scrollTop(0)
if (transition) {
that.$element[0].offsetWidth // force reflow
}
that.$element
.addClass('in')
.attr('aria-hidden', false)
that.enforceFocus()
var e = $.Event('shown.bs.modal', { relatedTarget: _relatedTarget })
transition ?
that.$element.find('.modal-dialog') // wait for modal to slide in
.one($.support.transition.end, function () {
that.$element.trigger('focus').trigger(e)
})
.emulateTransitionEnd(300) :
that.$element.trigger('focus').trigger(e)
})
}
Modal.prototype.hide = function (e) {
if (e) e.preventDefault()
e = $.Event('hide.bs.modal')
this.$element.trigger(e)
if (!this.isShown || e.isDefaultPrevented()) return
this.isShown = false
this.$body.removeClass('modal-open')
this.resetScrollbar()
this.escape()
$(document).off('focusin.bs.modal')
this.$element
.removeClass('in')
.attr('aria-hidden', true)
.off('click.dismiss.bs.modal')
$.support.transition && this.$element.hasClass('fade') ?
this.$element
.one($.support.transition.end, $.proxy(this.hideModal, this))
.emulateTransitionEnd(300) :
this.hideModal()
}
Modal.prototype.enforceFocus = function () {
$(document)
.off('focusin.bs.modal') // guard against infinite focus loop
.on('focusin.bs.modal', $.proxy(function (e) {
if (this.$element[0] !== e.target && !this.$element.has(e.target).length) {
this.$element.trigger('focus')
}
}, this))
}
Modal.prototype.escape = function () {
if (this.isShown && this.options.keyboard) {
this.$element.on('keyup.dismiss.bs.modal', $.proxy(function (e) {
e.which == 27 && this.hide()
}, this))
} else if (!this.isShown) {
this.$element.off('keyup.dismiss.bs.modal')
}
}
Modal.prototype.hideModal = function () {
var that = this
this.$element.hide()
this.backdrop(function () {
that.$element.trigger('hidden.bs.modal')
})
}
Modal.prototype.removeBackdrop = function () {
this.$backdrop && this.$backdrop.remove()
this.$backdrop = null
}
Modal.prototype.backdrop = function (callback) {
var that = this
var animate = this.$element.hasClass('fade') ? 'fade' : ''
if (this.isShown && this.options.backdrop) {
var doAnimate = $.support.transition && animate
this.$backdrop = $('<div class="modal-backdrop ' + animate + '" />')
.appendTo(this.$body)
this.$element.on('click.dismiss.bs.modal', $.proxy(function (e) {
if (e.target !== e.currentTarget) return
this.options.backdrop == 'static'
? this.$element[0].focus.call(this.$element[0])
: this.hide.call(this)
}, this))
if (doAnimate) this.$backdrop[0].offsetWidth // force reflow
this.$backdrop.addClass('in')
if (!callback) return
doAnimate ?
this.$backdrop
.one($.support.transition.end, callback)
.emulateTransitionEnd(150) :
callback()
} else if (!this.isShown && this.$backdrop) {
this.$backdrop.removeClass('in')
var callbackRemove = function() {
that.removeBackdrop()
callback && callback()
}
$.support.transition && this.$element.hasClass('fade') ?
this.$backdrop
.one($.support.transition.end, callbackRemove)
.emulateTransitionEnd(150) :
callbackRemove()
} else if (callback) {
callback()
}
}
Modal.prototype.checkScrollbar = function () {
if (document.body.clientWidth >= window.innerWidth) return
this.scrollbarWidth = this.scrollbarWidth || this.measureScrollbar()
}
Modal.prototype.setScrollbar = function () {
var bodyPad = parseInt(this.$body.css('padding-right') || 0)
if (this.scrollbarWidth) this.$body.css('padding-right', bodyPad + this.scrollbarWidth)
}
Modal.prototype.resetScrollbar = function () {
this.$body.css('padding-right', '')
}
Modal.prototype.measureScrollbar = function () { // thx walsh
var scrollDiv = document.createElement('div')
scrollDiv.className = 'modal-scrollbar-measure'
this.$body.append(scrollDiv)
var scrollbarWidth = scrollDiv.offsetWidth - scrollDiv.clientWidth
this.$body[0].removeChild(scrollDiv)
return scrollbarWidth
}
// MODAL PLUGIN DEFINITION
// =======================
function Plugin(option, _relatedTarget) {
return this.each(function () {
var $this = $(this)
var data = $this.data('bs.modal')
var options = $.extend({}, Modal.DEFAULTS, $this.data(), typeof option == 'object' && option)
if (!data) $this.data('bs.modal', (data = new Modal(this, options)))
if (typeof option == 'string') data[option](_relatedTarget)
else if (options.show) data.show(_relatedTarget)
})
}
var old = $.fn.modal
$.fn.modal = Plugin
$.fn.modal.Constructor = Modal
// MODAL NO CONFLICT
// =================
$.fn.modal.noConflict = function () {
$.fn.modal = old
return this
}
// MODAL DATA-API
// ==============
$(document).on('click.bs.modal.data-api', '[data-toggle="modal"]', function (e) {
var $this = $(this)
var href = $this.attr('href')
var $target = $($this.attr('data-target') || (href && href.replace(/.*(?=#[^\s]+$)/, ''))) //strip for ie7
var option = $target.data('bs.modal') ? 'toggle' : $.extend({ remote: !/#/.test(href) && href }, $target.data(), $this.data())
if ($this.is('a')) e.preventDefault()
Plugin.call($target, option, this)
$target.one('hide', function () {
$this.is(':visible') && $this.trigger('focus')
})
})
}(jQuery);