我需要覆盖显示以上的第一个模式,而不是在后面。
$('#openBtn').click(function(){
$('#myModal').modal({show:true})
});
<a data-toggle="modal" href="#myModal" class="btn btn-primary">Launch modal</a>
<div class="modal" id="myModal">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title">Modal title</h4>
</div><div class="container"></div>
<div class="modal-body">
Content for the dialog / modal goes here.
<br>
<br>
<br>
<br>
<br>
<a data-toggle="modal" href="#myModal2" class="btn btn-primary">Launch modal</a>
</div>
<div class="modal-footer">
<a href="#" data-dismiss="modal" class="btn">Close</a>
<a href="#" class="btn btn-primary">Save changes</a>
</div>
</div>
</div>
</div>
<div class="modal" id="myModal2" data-backdrop="static">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title">Second Modal title</h4>
</div><div class="container"></div>
<div class="modal-body">
Content for the dialog / modal goes here.
</div>
<div class="modal-footer">
<a href="#" data-dismiss="modal" class="btn">Close</a>
<a href="#" class="btn btn-primary">Save changes</a>
</div>
</div>
</div>
</div>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.0.0/css/bootstrap.min.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.0.0/js/bootstrap.min.js"></script>
我试图改变。modal- background的z索引,但它变得一团糟。
在某些情况下,我在同一页上有两个以上的情态动词。
其他的解决方案在开箱即用时对我不起作用。我想可能是因为我使用的是Bootstrap(3.3.2)的最新版本....覆盖层出现在模态对话框的顶部。
我重构了一些代码,并注释掉了调整模式背景的部分。这解决了问题。
var $body = $('body');
var OPEN_MODALS_COUNT = 'fv_open_modals';
var Z_ADJUSTED = 'fv-modal-stack';
var defaultBootstrapModalZindex = 1040;
// keep track of the number of open modals
if ($body.data(OPEN_MODALS_COUNT) === undefined) {
$body.data(OPEN_MODALS_COUNT, 0);
}
$body.on('show.bs.modal', '.modal', function (event)
{
if (!$(this).hasClass(Z_ADJUSTED)) // only if z-index not already set
{
// Increment count & mark as being adjusted
$body.data(OPEN_MODALS_COUNT, $body.data(OPEN_MODALS_COUNT) + 1);
$(this).addClass(Z_ADJUSTED);
// Set Z-Index
$(this).css('z-index', defaultBootstrapModalZindex + (1 * $body.data(OPEN_MODALS_COUNT)));
//// BackDrop z-index (Doesn't seem to be necessary with Bootstrap 3.3.2 ...)
//$('.modal-backdrop').not( '.' + Z_ADJUSTED )
// .css('z-index', 1039 + (10 * $body.data(OPEN_MODALS_COUNT)))
// .addClass(Z_ADJUSTED);
}
});
$body.on('hidden.bs.modal', '.modal', function (event)
{
// Decrement count & remove adjusted class
$body.data(OPEN_MODALS_COUNT, $body.data(OPEN_MODALS_COUNT) - 1);
$(this).removeClass(Z_ADJUSTED);
// Fix issue with scrollbar being shown when any modal is hidden
if($body.data(OPEN_MODALS_COUNT) > 0)
$body.addClass('modal-open');
});
顺便说一句,如果你想在AngularJs中使用它,只需将代码放在模块的.run()方法中即可。
解决方案灵感来自@YermoLamers和@Ketwaroo的回答。
背景z指数修正
这个解决方案使用setTimeout,因为当事件show.bs.modal被触发时,.modal- background不会被创建。
$(document).on('show.bs.modal', '.modal', function() {
const zIndex = 1040 + 10 * $('.modal:visible').length;
$(this).css('z-index', zIndex);
setTimeout(() => $('.modal-backdrop').not('.modal-stack').css('z-index', zIndex - 1).addClass('modal-stack'));
});
这适用于页面上创建的每个.modal(即使是动态模态)
背景瞬间覆盖了之前的模式
例子jsfiddle
z - index
如果你不喜欢硬编码的z指数,你可以计算页面上的最高z指数,如下所示:
const zIndex = 10 +
Math.max(...Array.from(document.querySelectorAll('*')).map((el) => +el.style.zIndex));
滚动条修正
如果页面上的某个模态超出了浏览器的高度,那么关闭第二个模态时就不能在其中滚动。要解决这个问题,添加:
$(document).on('hidden.bs.modal', '.modal',
() => $('.modal:visible').length && $(document.body).addClass('modal-open'));
版本
这个解决方案是用3.1.0 - 3.3.5引导程序测试的
结合A1rPun的回答和StriplingWarrior的建议,我想到了这个:
$(document).on({
'show.bs.modal': function () {
var zIndex = 1040 + (10 * $('.modal:visible').length);
$(this).css('z-index', zIndex);
setTimeout(function() {
$('.modal-backdrop').not('.modal-stack').css('z-index', zIndex - 1).addClass('modal-stack');
}, 0);
},
'hidden.bs.modal': function() {
if ($('.modal:visible').length > 0) {
// restore the modal-open class to the body element, so that scrolling works
// properly after de-stacking a modal.
setTimeout(function() {
$(document.body).addClass('modal-open');
}, 0);
}
}
}, '.modal');
工作甚至动态模态添加后,并消除了第二个滚动条的问题。最值得注意的是,我发现这个功能很有用,它将模态中的表单与Bootbox警报的验证反馈集成在一起,因为这些使用动态模态,因此需要将事件绑定到document,而不是.modal,因为这只会将它附加到现有的模态。
小提琴。
更新日期:2019年1月22日,13.41
我通过jhay优化了解决方案,它还支持关闭和打开相同或不同的对话框,例如,从一个细节数据向前或向后跨步到另一个细节数据。
(function ($, window) {
'use strict';
var MultiModal = function (element) {
this.$element = $(element);
this.modalIndex = 0;
};
MultiModal.BASE_ZINDEX = 1040;
/* Max index number. When reached just collate the zIndexes */
MultiModal.MAX_INDEX = 5;
MultiModal.prototype.show = function (target) {
var that = this;
var $target = $(target);
// Bootstrap triggers the show event at the beginning of the show function and before
// the modal backdrop element has been created. The timeout here allows the modal
// show function to complete, after which the modal backdrop will have been created
// and appended to the DOM.
// we only want one backdrop; hide any extras
setTimeout(function () {
/* Count the number of triggered modal dialogs */
that.modalIndex++;
if (that.modalIndex >= MultiModal.MAX_INDEX) {
/* Collate the zIndexes of every open modal dialog according to its order */
that.collateZIndex();
}
/* Modify the zIndex */
$target.css('z-index', MultiModal.BASE_ZINDEX + (that.modalIndex * 20) + 10);
/* we only want one backdrop; hide any extras */
if (that.modalIndex > 1)
$('.modal-backdrop').not(':first').addClass('hidden');
that.adjustBackdrop();
});
};
MultiModal.prototype.hidden = function (target) {
this.modalIndex--;
this.adjustBackdrop();
if ($('.modal.in').length === 1) {
/* Reset the index to 1 when only one modal dialog is open */
this.modalIndex = 1;
$('.modal.in').css('z-index', MultiModal.BASE_ZINDEX + 10);
var $modalBackdrop = $('.modal-backdrop:first');
$modalBackdrop.removeClass('hidden');
$modalBackdrop.css('z-index', MultiModal.BASE_ZINDEX);
}
};
MultiModal.prototype.adjustBackdrop = function () {
$('.modal-backdrop:first').css('z-index', MultiModal.BASE_ZINDEX + (this.modalIndex * 20));
};
MultiModal.prototype.collateZIndex = function () {
var index = 1;
var $modals = $('.modal.in').toArray();
$modals.sort(function(x, y)
{
return (Number(x.style.zIndex) - Number(y.style.zIndex));
});
for (i = 0; i < $modals.length; i++)
{
$($modals[i]).css('z-index', MultiModal.BASE_ZINDEX + (index * 20) + 10);
index++;
};
this.modalIndex = index;
this.adjustBackdrop();
};
function Plugin(method, target) {
return this.each(function () {
var $this = $(this);
var data = $this.data('multi-modal-plugin');
if (!data)
$this.data('multi-modal-plugin', (data = new MultiModal(this)));
if (method)
data[method](target);
});
}
$.fn.multiModal = Plugin;
$.fn.multiModal.Constructor = MultiModal;
$(document).on('show.bs.modal', function (e) {
$(document).multiModal('show', e.target);
});
$(document).on('hidden.bs.modal', function (e) {
$(document).multiModal('hidden', e.target);
});}(jQuery, window));
终于解决了。我对它进行了多种测试,效果很好。
以下是所有遇到同样问题的人的解决方案:
修改Modal.prototype.show函数(在bootstrap.js或modal.js中)
来自:
if (transition) {
that.$element[0].offsetWidth // force reflow
}
that.$element
.addClass('in')
.attr('aria-hidden', false)
that.enforceFocus()
TO:
if (transition) {
that.$element[0].offsetWidth // force reflow
}
that.$backdrop
.css("z-index", (1030 + (10 * $(".modal.fade.in").length)))
that.$element
.css("z-index", (1040 + (10 * $(".modal.fade.in").length)))
.addClass('in')
.attr('aria-hidden', false)
that.enforceFocus()
这是我发现的最好的方法:检查打开了多少个模态,并将模态和背景的z-index更改为更高的值。