[英]How to shift elements with Drag and Drop by using HTML5?
I'm working with Drag and Drop tutorial from HTML Rocks. 我正在使用HTML Rocks中的拖放教程 。 The current tutorial basically does a switch of the dragged element and the element it is dropped on.
当前教程基本上对拖动的元素和放置在其上的元素进行切换。 What was in point A goes to point B and point B goes to point A.
A点的内容转到B点,B点的内容转到A点。
|A|B|C| --> |B|A|C|
|D|E|F| |D|E|F|
I'm trying to change this logic. 我正在尝试更改此逻辑。 If I drag point E, it should be in between the others.
如果拖动点E,则它应该在其他点之间。
|A|B|C| --> |A|E|B|
|D|E|F| |C|D|F|
This is the demo I have for this. 这是我的演示 。
Should this be done changing the property dropEffect or it will be necessary to create a new div for adding the item we're moving? 是否应该通过更改属性dropEffect来完成此操作,还是必须创建一个新的div来添加要移动的项目?
function handleDragStart(e) {
this.style.opacity = '0.4'; // this / e.target is the source node.
}
function handleDragOver(e) {
if (e.preventDefault) {
e.preventDefault(); // Necessary. Allows us to drop.
}
e.dataTransfer.dropEffect = 'move'; // See the section on the DataTransfer object.
return false;
}
I found the way to do this thanks to @tbirell 我感谢@tbirell找到了实现此目标的方法
I'm using the Jquery UI library for this and change all the logic of what I did at the beginning 我为此使用了Jquery UI 库 ,并更改了我一开始所做的所有逻辑
Instead of using DIV, I'm replacing them by UL and LI 我没有使用DIV,而是用UL和LI代替了它们
<ul id="sortable">
<li class=" ui-state-default">Item 1</li>
<li class=" ui-state-default">Item 2</li>
<li class=" ui-state-default">Item 3</li>
<li class=" ui-state-default">Item 4</li>
<li class=" ui-state-default">Item 5</li>
<li class=" ui-state-default">Item 6</li>
</ul>
The library is the one that manages the logic of this. 该库是管理此逻辑的库。
$( function() {
$( "#sortable" ).sortable({
revert: true
});
$( "#draggable" ).draggable({
connectToSortable: "#sortable",
helper: "clone",
revert: "invalid"
});
$( "ul, li" ).disableSelection();
} );
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