我正在尝试使用jquery-simulate-ext的jquery-ui插件来模拟拖放模拟。
在我详细介绍该场景之前，让我向您展示js小提琴here。
我有3列divs。在第一列中，我有3个具有国家名称的可拖动对象，在第二列中有空白divs的可放置对象，在第三列中有城市名称的3个普通div。因此，在将第一列的所有可拖动对象放到第二个Cloumn中之后，第二列和第三列的行就具有了国家/城市之间的关系。
但是问题是，在完成模拟之后，将第一个和第二个可拖动对象放置在预期的可放置对象上，但是第三个可拖动对象只是粘在鼠标上，而不是放到可放置对象上。要查找行为，请在上述js提琴手页面加载后，将鼠标光标移至结果部分，您会看到可拖动对象也随鼠标一起移动。您必须单击某个位置以使可拖动的位置位于可放置或可拖动的部分（取决于您要单击的区域）。 仅在Firefox 中发生，而在chrome 中，可拖动对象仅与光标一起在相应的可放置部分内移动，然后自动位于其中。
我想要的是： 与其他可拖动对象一样，第三个可拖动对象不应随鼠标的移动而移动，而应自动位于所需的可放置对象上。< / p>
代码说明：
类别为div的每个可拖动draggable_div都具有属性data-index（值1,2,3等）。对于可放下的divs（类为droppable_blank），情况相同。现在在JS代码的开头，我有一行：
answers_found='[1,2,3]';
这些基本上是可拖动对象中的data-index值。值的顺序仅显示可拖动对象的data-index值在可放置对象上时的顺序。在上述情况下，第一个值为1，因此它将是位于第一个可放置对象上的第一个（不是第2个或第3个）可拖动对象。同样，第二和第三可拖动对象将连续放置在第二和第三可放置对象上。
代码执行以下for循环
for(var i =0; i<answers_found.length; i++){
从answers_found数组中获取每个值。该值是可拖动的data-index属性值。然后给call_trigger_drop函数提供2个参数：
call_trigger_drop(parseInt(answer_found_indiv),droppable_index);
第一个是可拖动索引，第二个是相应可放置索引，即可拖动对象位于可放置对象上。实际的仿真是通过以下几行进行的：
draggable.simulate("drag", {
dx: dx,
dy: dy
});
TL; DR：
将第一列的可拖动对象模拟为放在第二列的可放置对象上，而第三列只是正常的div。在拖放模拟之后，第3个可拖动对象不会位于Firefox中的第3个可放置对象上，而是与光标一起移动，直到发生单击为止。 如何使其像其他可拖动对象一样自动放置在可放置对象上？
编辑：
如果要以普通网页而不是js小提琴的形式获取结果，则可以找到here。
console = {};
console.log = function(){};
window.console = console;
drag_stop_counter = 0;
answers_found = '[3,2,1]';
answer_all_zero = 0; //REMOVABLE
if (answers_found != "".trim()) {
answers_found = $.parseJSON(answers_found);
answer_all_zero = 1;
for (var i = 0; i < answers_found.length; i++) {
if (parseInt(answers_found[i]) != 0) {
answer_all_zero = 0;
break;
}
} //end of for loop
}
total_answers_found = answers_found.length;
total_actual_answers_found = 0;
for (var i = 0; i < answers_found.length; i++) {
if (parseInt(answers_found[i])) {
++total_actual_answers_found;
}
} //end of for loop
answers = [];
answers_made_for_insert = [];
question_id = 2901;
//Following function is triggered
//when the dNd component is starting the drop
//event
function trigger_drop(draggable_elem_index, droppable_elem_index) {
if (draggable_elem_index && droppable_elem_index) {
if (window.console) {
console.log("from within trigger_drop : draggable_elem_index = " + draggable_elem_index + " droppable_elem_index= " + droppable_elem_index);
}
// var draggable = $(".draggable_container_indiv .draggable_div").eq(draggable_elem_index-1).draggable(),
var draggable = $(".draggable_container_indiv").eq(draggable_elem_index - 1).find(".draggable_div").draggable(),
droppable = $("#droppable_slots .droppable_blank").eq(droppable_elem_index - 1).droppable(),
droppableOffset = droppable.offset(),
draggableOffset = draggable.offset(),
dx = droppableOffset.left - draggableOffset.left,
dy = droppableOffset.top - draggableOffset.top;
draggable.simulate("drag", {
dx: dx,
dy: dy
});
} // end of if(draggable_elem_index && droppable_elem_index){
} // end of function trigger_drop(
//answers stored in array for insertion in DB
function make_answers_for_insert(answer_given) {
answers_made_for_insert.push(answer_given);
} //end of function answers_for_insert
//finds answers from array
function find_answers() {
answers = [];
$('input[name="' + question_id + '[]"]').each(function() {
$elem = $(this);
var value_found = $elem.val().trim();
if (value_found == "".trim()) {
value_found = "0";
}
// if(value_found!="".trim()){
answers.push(value_found);
// }
});
//alert("answers made "+answers);
if (window.console) {
console.log("answers from find_answers = ");
console.log(answers);
}
} //end of function find_answers
function call_trigger_drop(answer_found_indiv, droppable_index) {
trigger_drop(answer_found_indiv, droppable_index);
}
function insert_answer() {
if (window.console) {
console.log(" can_submit in insert_answer = " + can_submit);
}
if (can_submit) {
can_submit = 0
$("#draggable .draggable_div").draggable('disable');
//ui.draggable.draggable({disabled: true});
$('#droppable_slots li').find('.ui-draggable').draggable({
disabled: true
});
answers = [];
$('input[name="' + question_id + '[]"]').each(function() {
$elem = $(this);
var value_found = $elem.val().trim();
if (value_found == "".trim()) {
value_found = "0";
}
// if(value_found!="".trim()){
answers.push(value_found);
// }
});
answers = JSON.stringify(answers);
if (window.console) {
console.log("answers from insert_answers = ");
console.log(answers);
}
//ajax call for insertion
} // end of if(can_submit){
} // end of function insert_anwers
$(document).ready(function() {
answer_status = 0;
review_table_status = 0;
$('input[name="' + question_id + '[]"]').each(function() {
var dnd_value_found = $(this).val().trim();
if (window.console) {
console.log(" dnd_value_found = " + dnd_value_found);
}
if (dnd_value_found != "".trim()) {
answer_status = 1;
review_table_status = 1;
return false;
}
}); // end of each
var draggable_counter = 0;
$(".draggable_container_indiv").each(function() {
// $draggable_elem=$(this);
$draggable_elem = $(".draggable_div").eq(draggable_counter);
var $droppable_elem = $(".droppable_content_indiv").eq(draggable_counter);
var $draggable_container_indiv_elem = $(".draggable_container_indiv").eq(draggable_counter);
var $droppable_blank_elem = $(".droppable_blank").eq(draggable_counter);
var droppable_height = $droppable_elem.css('height');
var draggable_height = $draggable_elem.css('height');
var droppable_width = $droppable_elem.css('width');
var draggable_width = $draggable_elem.css('width');
var height_more = 0;
if (parseInt(draggable_height) > parseInt(droppable_height)) {
height_more = draggable_height;
} else {
height_more = droppable_height;
}
var width_more = 0;
if (parseInt(draggable_width) > parseInt(droppable_width)) {
width_more = draggable_width;
} else {
width_more = droppable_width;
}
if (window.console) {
console.log(" draggable_height " + draggable_height + " droppable_height = " + droppable_height + " height_more = " + height_more);
}
$draggable_elem.css({
'height': height_more
});
$droppable_elem.css({
'height': height_more
});
$droppable_blank_elem.css({
'height': height_more
});
$draggable_container_indiv_elem.css({
'height': height_more
});
//$('.draggable_container_indiv').css({'height':22});// hhhhhhhh
$draggable_elem.css({
'width': width_more
});
$droppable_elem.css({
'width': width_more
});
$droppable_blank_elem.css({
'width': width_more
});
$draggable_container_indiv_elem.css({
'width': width_more
});
$droppable_elem.find(".ui-draggable").css({
'width': width_more
});
++draggable_counter;
});
$("#draggable .draggable_div").draggable({
scroll: false,
revert: true,
// helper: 'clone',
//appendTo: 'body',
start: function() {
if (window.console) {
console.log(" draggable started ....... ");
}
$(this).css({
display: 'none'
});
},
stop: function() {
$(this).css({
display: 'block'
});
var draggableIndex = $(this).data('index');
++drag_stop_counter;
if (window.console) {
console.log(" draggable stopped = " + drag_stop_counter);
console.log("draggable index in stop = " + draggableIndex);
}
var droppableIndex = $('#droppable_slots li').find('.ui-draggable[data-index=' + draggableIndex + ']').closest('.slot').data('index');
var index_found = $.inArray(draggableIndex + "", answers);
if (window.console) {
console.log("inside stop draggableIndex = " + draggableIndex + " after dropped ..... index_found = " + index_found);
}
},
revert: function(dropped) {
var dropped = dropped && dropped.hasClass('slot'); //fix duplicated IDs
if (!dropped) {
$(this).appendTo($(this).data('originalParent'))
}
return !dropped;
},
revertDuration: 0, //removed glitched effect
helper: function() {
return $(this).clone().appendTo('body').show();
},
containment: '.sel_screen_left'
}).each(function() {
$(this).data('originalParent', $(this).parent())
});
$("#droppable_slots li").droppable({
// tolerance:'pointer',
tolerance: 'intersect',
drop: function(event, ui) {
$(this).trigger('dropthis', [event, ui]); //REMOVABLE
$(this).trigger("dropthis", [{}, {
draggable: ui.draggable
}]); //REMOVABLE
var $this = $(this);
if ($this.find('.ui-draggable').length) return; //don't overwrite occupied spot
//$this.empty();
$this.append(ui.draggable);
var width = $this.width();
var height = $this.height();
var cntrLeft = (width / 2) - (ui.draggable.width() / 2);
var cntrTop = (height / 2) - (ui.draggable.height() / 2);
ui.draggable.css({
left: cntrLeft + "px",
top: cntrTop + "px"
});
var draggableIndex = parseInt(ui.draggable.data("index"));
var droppableIndex = parseInt($(this).data("index"));
if (window.console) {
console.log(" draggableIndex = " + draggableIndex + " droppableIndex = " + droppableIndex + " question_id = " + question_id);
}
if (window.console) {
console.log("droppable question_id = " + question_id);
console.log(" droppable drop has draggableIndex answer = " + draggableIndex);
}
if (window.console) {
console.log(" inside drop .......................... ");
}
var index_found = $.inArray(draggableIndex + "", answers);
if (window.console) {
console.log(" draggableIndex = " + draggableIndex + " after dropped ..... index_found = " + index_found);
}
if (index_found != -1) {
answers[index_found] = '';
$('input[name="' + question_id + '[]"]').eq(index_found).val('');
}
$(".droppable_blank[data-index=" + droppableIndex + "]").trigger('click');
if (window.console) {
console.log(" droppable_blank clicked droppableIndex = " + droppableIndex);
}
},
out: function(event, ui) {
},
over: function(event, ui) {
}
});
if (window.console) {
console.log("DnD ANSWERS found = ");
console.log(answers_found);
}
answer_found_indiv = 0;
droppable_index = 0;
for (var i = 0; i < answers_found.length; i++) {
//return false;
if (window.console) {
console.log(" iterating all answers: DnDDnDDnDDnDDnD dragndrop draggable index = " + answers_found[i] + " droppable index = " + (i + 1));
}
var droppable_index = i + 1;
var answer_found_indiv = parseInt(answers_found[i]);
if (answer_found_indiv == 0) {
if (window.console) {
console.log(" answer_found_indiv 000000000000000000");
}
} else if (answer_found_indiv) {
if (window.console) {
console.log("Trigger Drop = " + answer_found_indiv, " droppable_index = " + droppable_index);
}
call_trigger_drop(parseInt(answer_found_indiv), droppable_index);
}
} // end of for loop
});.noselect {
-webkit-touch-callout: none; /* iOS Safari */
-webkit-user-select: none; /* Safari */
-khtml-user-select: none; /* Konqueror HTML */
-moz-user-select: none; /* Firefox */
-ms-user-select: none; /* Internet Explorer/Edge */
user-select: none; /* Non-prefixed version, currently
supported by Chrome and Opera */
}
.draggable_container_indiv{
border: 1px solid green;
}
#draggable .draggable_div {
margin-left: -60px;
padding: 10px;
}
.droppable_blank{
/*line-height: 40px;*/
vertical-align: middle;
}
#draggable li, #draggable .draggable_div, #droppable_slots li, .draggable_div{
list-style: none;
}
.dragndrop-questions ul.option-left li{
padding-top: 0;
}
.match-questions ul.option-left li, .dragndrop-questions ul.option-left li{
font-size: 14px;
color: #656f7d;
position: relative;
padding-left: 60px;
min-height: 40px;
}
.draggable_container_indiv{
margin-bottom: -10px !important;
}<link href="https://epractice.lcbsdhaka.com/mytest/css/bootstrap.min.css" rel="stylesheet">
<link href="https://epractice.lcbsdhaka.com/mytest/js/jquery-ui-1.12.1.custom/jquery-ui.css"></link>
<script src="https://epractice.lcbsdhaka.com/mytest/js/jquery-1.12.4.js"></script>
<script src="https://epractice.lcbsdhaka.com/mytest/js/jquery-ui-1.12.1.custom/jquery-ui.min.js"></script>
<script src="https://epractice.lcbsdhaka.com/mytest/js/bootstrap.min.js"></script>
<script src="https://epractice.lcbsdhaka.com/mytest/js/jquery.simulate.js"></script>
<script src="https://epractice.lcbsdhaka.com/mytest/js/jquery-simulate-ext/src/jquery.simulate.ext.js"></script>
<script src="https://epractice.lcbsdhaka.com/mytest/js/jquery-simulate-ext/src/jquery.simulate.drag-n-drop.js"></script>
<script src="https://epractice.lcbsdhaka.com/mytest/js/bootstrap.min.js"></script>
<script src="https://epractice.lcbsdhaka.com/mytest/js/jquery-ui-1.12.1.custom/jquery-ui.min.js"></script>
<div class="dragndrop-questions row">
<div>
<div style="width:30%; float: left; ">
<ul class="option option-left" id="draggable">
<li class="draggable_container_indiv noselect">
<div class="draggable_div" data-index="1">
USA
</div>
</li>
<li class="draggable_container_indiv noselect">
<div class="draggable_div" data-index="2">
JAPAN
</div>
</li>
<li class="draggable_container_indiv noselect">
<div class="draggable_div" data-index="3">
CHINA
</div>
</li>
</ul>
</div>
<div style="width:65%; float: right; margin-right: 10px;">
<ul class="option option-right" id="droppable_slots">
<div class="row ">
<div style="width:45%; float: left; margin-left:10px; border: 1px solid red;">
<li class="slot droppable_blank noselect" data-index="1">
</li>
</div>
<div style="width:48%; float: right; border: 1px solid yellow;">
<li class="droppable_content_indiv noselect">
<p>
NewYork
</p>
</li>
</div>
</div>
<!--end of class row -->
<div class="row ">
<div style="width:45%; float: left; margin-left:10px; border: 1px solid red;">
<li class="slot droppable_blank noselect" data-index="2">
</li>
</div>
<div style="width:48%; float: right; border: 1px solid yellow;">
<li class="droppable_content_indiv noselect">
<p>
Tokyo
</p>
</li>
</div>
</div>
<!--end of class row -->
<div class="row ">
<div style="width:45%; float: left; margin-left:10px; border: 1px solid red;">
<li class="slot droppable_blank noselect" data-index="3">
</li>
</div>
<div style="width:48%; float: right; border: 1px solid yellow;">
<li class="droppable_content_indiv noselect">
<p>
Beijing
</p>
</li>
</div>
</div>
<!--end of class row -->
</ul>
</div>
<div class="" style="clear: both;"></div>
</div>
</div>
<!-- end of class dragndrop-questions-->
答案 0 :(得分：1)
这是因为它仅模拟drag事件而没有drop，请改用drag-n-drop。
draggable.simulate("drag-n-drop", {dx: dx, dy: dy});