[英]Bootstrap 3 modal: make it movable/draggable without jquery-ui
我正在尝试开发一些东西:
我使用backbone.js,但我认为这不是那么重要。 在一段代码中,我定义了我的引导模式:
<div id="detailsContainer">
<div class="modal fade" id="someId" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
<h4 class="modal-title" id="myModalLabel"><span class="glyphicon glyphicon-cloud-upload" aria-hidden="true"></span> Some Title</h4>
</div>
<div class="modal-body" id="content">
<form class="form-horizontal" role="form" id="modalFormBody">
... some content
</form>
</div>
<div class="modal-footer">
<div class="pull-right" id="modalButtonBar">
<button type="button" class="btn btn-default control-button" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary control-button" id="addButton">Add</button>
</div>
</div>
</div>
</div>
现在,当我尝试使用以下代码设置模式可拖动时:
var $container = $("#detailsContainer");
$container.on('mousedown', 'div', function() {
$(this).addClass('draggable').parents().on('mousemove', function(e) {
$('.draggable').offset({
top: e.pageY - $('.draggable').outerHeight() / 2,
left: e.pageX - $('.draggable').outerWidth() / 2
}).on('mouseup', function() {
$(this).removeClass('draggable');
});
});
e.preventDefault();
}).on('mouseup', function() {
$('.draggable').removeClass('draggable');
});
行为很奇怪:
上面的例子是我在 stackoverflow 上找到的(对不起,我没有找到它的链接)。 我还找到了一些 jquery-ui 的例子。 但我不想使用它。 只有jQuery。
我也试过: Dialog draggable和JQuery Draggable Demo 。 但没有成功。 第一个不会使我的模态可拖动,第二个我不明白如何将它与$container一起使用
有人可以帮助我吗?
更新
$('body').on('mousedown', '.modal-dialog', function() {
$(this).addClass('draggable').parents().on('mousemove', function(e) {
$('.draggable').offset({
top: e.pageY - $('.draggable').outerHeight() / 2,
left: e.pageX - $('.draggable').outerWidth() / 2
}).on('mouseup', function() {
$(this).removeClass('draggable');
});
});
e.preventDefault();
}).on('mouseup', function() {
$('.draggable').removeClass('draggable');
});
但是当我想拖动时......它会改变我在模态中捡起它的位置。 它在拐角处。 不是在那里我捡到的吗? 我该如何纠正? 将“.modal-dialog”放在mousedown函数上是错误的? 如果这是错误的,我必须把它放在哪个元素上?
还有一点:我在模态主体(示例下拉菜单)中的元素不能拖动。 我怎样才能排除它们?
这个答案为时已晚,但以防万一有人(像我一样)正在寻找解决方案。 最后,我的解决方案是使用此代码:
(function ($) {
$.fn.drags = function (opt) {
opt = $.extend({ handle: "", cursor: "move" }, opt);
var $el = null;
if (opt.handle === "") {
$el = this;
} else {
$el = this.find(opt.handle);
}
return $el.css('cursor', opt.cursor).on("mousedown", function (e) {
var $drag = null;
if (opt.handle === "") {
$drag = $(this).parents('.modal-dialog').addClass('draggable');
} else {
$drag = $(this).parents('.modal-dialog').addClass('active-handle').parent().addClass('draggable');
}
var z_idx = $drag.css('z-index'),
drg_h = $drag.outerHeight(),
drg_w = $drag.outerWidth(),
pos_y = $drag.offset().top + drg_h - e.pageY,
pos_x = $drag.offset().left + drg_w - e.pageX;
$drag.css('z-index', 1000).parents().on("mousemove", function (e) {
$('.draggable').offset({
top: e.pageY + pos_y - drg_h,
left: e.pageX + pos_x - drg_w
}).on("mouseup", function () {
$(this).removeClass('draggable').css('z-index', z_idx);
});
});
e.preventDefault(); // disable selection
}).on("mouseup", function () {
if (opt.handle === "") {
$(this).removeClass('draggable');
} else {
$(this).removeClass('active-handle').parent().removeClass('draggable');
}
});
}
})(jQuery);
然后,当显示模态时:
$('#modal').on('shown.bs.modal', function () {
$(this).find('.card-header').drags();
});
$('#modal').modal({ show: true, backdrop: 'static', keyboard: false });
我在模态对话框中使用了一张带有 HTML 的卡片,如下所示:
<div id="modal" class="modal fade">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content animated bounceInRight">
<div class="modal-body">
<div class="card">
<div class="card-header border-bottom-0">My super title</div>
<div class="card-body">
<form >...</form>
</div>
</div>
</div>
<div class="modal-footer">
<button type="submit" class="btn btn-success" id="btnAlmacenar"><i class="fa fa-save"></i> Almacenar</button>
<button type="button" class="btn btn-danger" data-dismiss="modal"><i class="fa fa-close"></i> Cancelar</button>
</div>
</div>
</div>
</div>
如果您想尝试,这是整个片段:
(function ($) { $.fn.drags = function (opt) { opt = $.extend({ handle: "", cursor: "move" }, opt); var $el = null; if (opt.handle === "") { $el = this; } else { $el = this.find(opt.handle); } return $el.css('cursor', opt.cursor).on("mousedown", function (e) { var $drag = null; if (opt.handle === "") { $drag = $(this).parents('.modal-dialog').addClass('draggable'); } else { $drag = $(this).parents('.modal-dialog').addClass('active-handle').parent().addClass('draggable'); } var z_idx = $drag.css('z-index'), drg_h = $drag.outerHeight(), drg_w = $drag.outerWidth(), pos_y = $drag.offset().top + drg_h - e.pageY, pos_x = $drag.offset().left + drg_w - e.pageX; $drag.css('z-index', 1000).parents().on("mousemove", function (e) { $('.draggable').offset({ top: e.pageY + pos_y - drg_h, left: e.pageX + pos_x - drg_w }).on("mouseup", function () { $(this).removeClass('draggable').css('z-index', z_idx); }); }); e.preventDefault(); // disable selection }).on("mouseup", function () { if (opt.handle === "") { $(this).removeClass('draggable'); } else { $(this).removeClass('active-handle').parent().removeClass('draggable'); } }); } })(jQuery); $(document).ready(function () { $('#modal').on('shown.bs.modal', function () { $(this).find('.card-header').drags(); }); $('#modal').modal({ show: true, backdrop: 'static', keyboard: false }); });
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous"> <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.bundle.min.js"></script> <div id="modal" class="modal fade"> <div class="modal-dialog modal-dialog-centered modal-lg"> <div class="modal-content animated bounceInRight"> <div class="modal-body"> <div class="card"> <div class="card-header border-bottom-0">My super title</div> <div class="card-body"> <form></form> </div> </div> </div> <div class="modal-footer"> <button type="submit" class="btn btn-success" id="btnAlmacenar"><i class="fa fa-save"></i> Almacenar</button> <button type="button" class="btn btn-danger" data-dismiss="modal"><i class="fa fa-close"></i> Cancelar</button> </div> </div> </div> </div>
试试这个代码肯定会帮助你,下面的代码没有 jquery ui
$(function() { $('body').on('mousedown', '#myModal', function(ev) { $(this).addClass('draggable').parents().on('mousemove', function(e) { $('.draggable').offset({ top: e.pageY - $('.draggable').outerHeight() /8, left: e.pageX - $('.draggable').outerWidth() /8 }).on('mouseup', function() { $(this).removeClass('draggable'); }); }); ev.preventDefault(); }).on('mouseup', function() { $('.draggable').removeClass('draggable'); }); });
body {padding:50px;} div { cursor:move; }
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet"/> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script> <button type="button" class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal"> Launch demo modal </button> <div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel"> <div class="modal-dialog" role="document"> <div class="modal-content"> <div class="modal-header"> <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button> <h4 class="modal-title" id="myModalLabel">Modal title</h4> </div> <div class="modal-body"> <form> <div class="form-group"> <label for="recipient-name" class="control-label">Recipient:</label> <input type="text" class="form-control" id="recipient-name"> </div> <div class="form-group"> <label for="message-text" class="control-label">Message:</label> <textarea class="form-control" id="message-text"></textarea> </div> </form> </div> <div class="modal-footer"> <button type="button" class="btn btn-default" data-dismiss="modal">Close</button> <button type="button" class="btn btn-primary">Save changes</button> </div> </div> </div> </div>
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