var Modal = function (element, options) {
this.options = options
this.$element = $(element)
this.$backdrop =
this.isShown = null
if (this.options.remote) this.$element.load(this.options.remote)
}
Modal.DEFAULTS = {
backdrop: true
, keyboard: true
, show: true
}
Modal.prototype.toggle = function (_relatedTarget) {
return this[!this.isShown ? 'show' : 'hide'](_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.escape()
this.$element.on('click.dismiss.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(document.body)
}
that.$element.show()
if (transition) {
that.$element[0].offsetWidth
}
that.$element
.addClass('in')
.attr('aria-hidden', false)
that.enforceFocus()
var e = $.Event('shown.bs.modal', { relatedTarget: _relatedTarget })
transition ?
that.$element.find('.modal-dialog')
.one($.support.transition.end, function () {
that.$element.focus().trigger(e)
})
.emulateTransitionEnd(300) :
that.$element.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.escape()
$(document).off('focusin.bs.modal')
this.$element
.removeClass('in')
.attr('aria-hidden', true)
.off('click.dismiss.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')
.on('focusin.bs.modal', $.proxy(function (e) {
if (this.$element[0] !== e.target && !this.$element.has(e.target).length) {
this.$element.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.$element.hide()
this.backdrop(function () {
that.removeBackdrop()
that.$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 = $('<div class="modal-backdrop ' + animate + '" />')
.appendTo(document.body)
this.$element.on('click.dismiss.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
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')
$.support.transition && this.$element.hasClass('fade')?
this.$backdrop
.one($.support.transition.end, callback)
.emulateTransitionEnd(150) :
callback()
} else if (callback) {
callback()
}
}