Question

我是前端开发的新手，并且需要使用引导模式。

我尝试将引导程序的CSS和JS代码复制为模态，并保存在我的CSS文件中，并将javascript保留在脚本标签中，并尝试使用模态。但我没有点击按钮弹出。 CSS正在应用，但js部分无法正常工作。

我在这里错过了什么吗？

这是引导方式的js代码-

<script type="text/javascript">

'use strict';

// MODAL CLASS DEFINITION
// ======================

var Modal = function (element, options) {
this.options   = options
this.$element  = $(element)
this.$backdrop =
this.isShown   = null

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[!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.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(document.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.$element.focus().trigger(e)
})
.emulateTransitionEnd(300) :
that.$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.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.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 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.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')

$.support.transition && this.$element.hasClass('fade') ?
this.$backdrop
.one($.support.transition.end, callback)
.emulateTransitionEnd(150) :
callback()

} else if (callback) {
callback()
}
}


// MODAL PLUGIN DEFINITION
// =======================

var old = $.fn.modal

$.fn.modal = function (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) }
})
}

$.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() }

$target
.modal(option, this)
.one('hide', function () {
$this.is(':visible') && $this.focus()
})
})

$(document)
.on('show.bs.modal', '.modal', function () { $(document.body).addClass('modal-open') })
.on('hidden.bs.modal', '.modal', function () { $(document.body).removeClass('modal-open') })



</script>

这就是我调用模式

的方式

 <button type="button" class="btn" data-toggle="modal" data-target="#myModal">
        Open modal
        </button>

        <!-- The Modal -->
            <div class="modal" id="myModal">
                <div class="modal-dialog">
                    <div class="modal-content">

                <!-- Modal Header -->
                         <div class="modal-header">
                            <h4 class="modal-title">Modal Heading</h4>
                            <button type="button" class="close" data-dismiss="modal">&times;</button>
                        </div>

                    <!-- Modal body -->
                        <div class="modal-body">
                            Modal body..
                        </div>

                    <!-- Modal footer -->
                        <div class="modal-footer">
                            <button type="button" class="btn btn-danger" data-dismiss="modal">Close</button>
                        </div>
                    </div>
                </div>
            </div>

Answer 1

有可能。尽管我不确定您为什么要这样做。这是您的代码。

 'use strict';

        // MODAL CLASS DEFINITION
        // ======================

        var Modal = function (element, options) {
            this.options = options
            this.$element = $(element)
            this.$backdrop =
                this.isShown = null

            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[!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.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(document.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.$element.focus().trigger(e)
                    })
                    .emulateTransitionEnd(300) :
                    that.$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.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.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 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.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')

                $.support.transition && this.$element.hasClass('fade') ?
                    this.$backdrop
                    .one($.support.transition.end, callback)
                    .emulateTransitionEnd(150) :
                    callback()

            } else if (callback) {
                callback()
            }
        }


        // MODAL PLUGIN DEFINITION
        // =======================

        var old = $.fn.modal

        $.fn.modal = function (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)
                }
            })
        }

        $.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()
            }

            $target
                .modal(option, this)
                .one('hide', function () {
                    $this.is(':visible') && $this.focus()
                })
        })

        $(document)
            .on('body', '.modal', function () {
                $(document.body).addClass('modal-open')
            })
            .on('body', '.modal', function () {
                $(document.body).removeClass('modal-open')
            })

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button type="button" class="btn" data-toggle="modal" data-target="#myModal">
        Open modal
    </button>

    <!-- The Modal -->
    <div class="modal" id="myModal">
        <div class="modal-dialog">
            <div class="modal-content">

                <!-- Modal Header -->
                <div class="modal-header">
                    <h4 class="modal-title">Modal Heading</h4>
                    <button type="button" class="close" data-dismiss="modal">&times;</button>
                </div>

                <!-- Modal body -->
                <div class="modal-body">
                    Modal body..
                </div>

                <!-- Modal footer -->
                <div class="modal-footer">
                    <button type="button" class="btn btn-danger" data-dismiss="modal">Close</button>
                </div>
            </div>
        </div>
    </div>

Answer 2

如果您希望某人看到您的代码，您最好在jsfiddle中添加代码。

如果您是初学者，我希望您导入用于在引导程序中使用模式的库。

如果您要在线学习和调用图书馆（复制n粘贴），则是一个示例网站

https://www.w3schools.com/bootstrap/bootstrap_modal.asp

如果要本地下载。您可以

http://blog.getbootstrap.com/2016/07/25/bootstrap-3-3-7-released/

Answer 3

您没有在调用函数来打开模型。调用如下的$target.modal("show")方法并管理需求。

$target.modal(option, this).one('hide', function () {
    $this.is(':visible') && $this.focus()
});
$target.modal("show");

我们可以通过提取模式所需的javascript和CSS并将其保留在我们的代码中来使用引导模式吗？

3 个答案: