Jquery 拖动元素在拖动时通过对话框更改后变为原始默认状态
我的元素有这个拖放代码
$( ".sortable" ).sortable({
revert: true
});
$( ".draggable" ).draggable({
connectToSortable: ".sortable",
helper: "clone", //clone
revert: "true"
});
$( ".sortable" ).droppable({
drop: function( event, ui ) {
var $element = $(ui.draggable).clone();
$element.find('.control').children('.delete').css('display', 'inline').click(function () {
$(this).parent().remove();
});// display properties Link
$element.find('.control').children('.properties').css('display', 'inline');
//For Text Box Change the text and add a label
if($element.find('.control').find('input').attr('type') == "text")
{
$element.find('.control').find('.controlText').html("");
$element.find('.control').find('label').html("Label Here");
}
}
});
这是拖动元素的代码
<div class="tools">
<ul>
<li class="draggable" >
<div class="control">
<label> </label>
<input type="text" name="txt" value="" /><span class="controlText"> Text Box </span>
<div class="delete" style="display:none"><sup>x</sup></div>
<div class="properties txtbox" style="display:none">Properties</div>
</div>
</li>
</ul>
</div>
当拖动文本框时,此事件附加到它
$('.txtbox').live('click', function() {
//get the label
var label = $(this).parent().find('label').html();
$("#textbox_label").val(label);
$( "#dialog-textbox" ).dialog( "open" ).data('parent_div',$(this).parent());
return false;
});
这是单击属性时打开的对话框
<div id="dialog-textbox" title="Text Box Properties" style="display:none">
<p>This is the Text Box Properties Form.</p>
<form>
<fieldset>
<label for="textbox_label">Enter Label </label>
<input type="text" name="textbox_label" id="textbox_label" class="text ui-widget-content ui-corner-all" />
</fieldset>
</form>
以下代码处理对话框
$("#dialog-textbox").dialog({
autoOpen: false,
height: 300,
width: 350,
modal: true,
buttons: {
"Apply": function(){
//code to update element goes here...
var label = $("#textbox_label").val()
var $elem_clicked = $("#dialog-textbox").data('parent_div'); //This retrieves
$elem_clicked.find('label').html(label);
$( this ).dialog( "close" );
},
Cancel: function() {
$( this ).dialog( "close" );
}
}
});
这里发生了什么是我有一个文本框,我将其拖动到 ul li 列表并且可排序,该文本框被添加到列表中,然后我显示并关闭附加到文本框的属性链接。单击属性时,将打开一个对话框并要求输入新标签。用户为显示的文本框提供新标签。但问题是,当我再次向上或向下拖动可排序列表中的框时,它会返回到其初始状态,并且新标签丢失......我认为这是由于辅助克隆造成的,或者我应该克隆可拖动的项目?
i have this drag drop code for my elements
$( ".sortable" ).sortable({
revert: true
});
$( ".draggable" ).draggable({
connectToSortable: ".sortable",
helper: "clone", //clone
revert: "true"
});
$( ".sortable" ).droppable({
drop: function( event, ui ) {
var $element = $(ui.draggable).clone();
$element.find('.control').children('.delete').css('display', 'inline').click(function () {
$(this).parent().remove();
});// display properties Link
$element.find('.control').children('.properties').css('display', 'inline');
//For Text Box Change the text and add a label
if($element.find('.control').find('input').attr('type') == "text")
{
$element.find('.control').find('.controlText').html("");
$element.find('.control').find('label').html("Label Here");
}
}
});
This is the code for the drag element
<div class="tools">
<ul>
<li class="draggable" >
<div class="control">
<label> </label>
<input type="text" name="txt" value="" /><span class="controlText"> Text Box </span>
<div class="delete" style="display:none"><sup>x</sup></div>
<div class="properties txtbox" style="display:none">Properties</div>
</div>
</li>
</ul>
</div>
When the Text Box is dragged this event is attached to it
$('.txtbox').live('click', function() {
//get the label
var label = $(this).parent().find('label').html();
$("#textbox_label").val(label);
$( "#dialog-textbox" ).dialog( "open" ).data('parent_div',$(this).parent());
return false;
});
This is the dialog which opens when the Properties is clicked
<div id="dialog-textbox" title="Text Box Properties" style="display:none">
<p>This is the Text Box Properties Form.</p>
<form>
<fieldset>
<label for="textbox_label">Enter Label </label>
<input type="text" name="textbox_label" id="textbox_label" class="text ui-widget-content ui-corner-all" />
</fieldset>
</form>
The following code handles the Dialog
$("#dialog-textbox").dialog({
autoOpen: false,
height: 300,
width: 350,
modal: true,
buttons: {
"Apply": function(){
//code to update element goes here...
var label = $("#textbox_label").val()
var $elem_clicked = $("#dialog-textbox").data('parent_div'); //This retrieves
$elem_clicked.find('label').html(label);
$( this ).dialog( "close" );
},
Cancel: function() {
$( this ).dialog( "close" );
}
}
});
What is happening here is that i have a text box which i drag to a ul li list and that is sortable, the text box is added to the list and and then i show and close and properties links attached to the text box. when the properties is clicked a dialog box opens and asks for a new label. user gives new label to the text box that is shown with that. But what goes wrong is when i again drag the box in the sortable list up or down it goes back to its initial state and the new label is lost... I think this is due to the helper clone or should i make a clone of the draggable item?
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使用一个简单的技巧来区分原始元素和拖动的副本:
- 在原始元素的标签中添加一个类,例如
- 在 $(".sortable").droppable 处理程序中添加在末尾
它应该可以解决您的问题。请在此处查看。
Use a simple trick to distinguish you original element fromthe copy you drag:
- add a class to the label of the original element eg
- in your $(".sortable").droppable handler add atthe end
It should solve your problem. Check it here.