JQuery UI Draggable—如何知道一个元素被初始化了?

时间:2022-12-06 13:24:34

My logic is

我的逻辑是

if( !this.draginited() ) // a drag-disabled element shouldn't get pass here, as it is inited
  this.draggable({...})

I searched a lot and couldn't find a way to implement this logic, any ideas?

我找了很多,但是找不到实现这个逻辑的方法,有什么想法吗?

2 个解决方案

#1


12  

Maybe there's an easier way, but the docs say:

也许有更简单的方法,但是医生说:

Draggable elements gets a class of ui-draggable

Draggable元素获得一个ui-draggable类

so you could do something like:

你可以这样做:

if(!$("#foo").hasClass("ui-draggable")) {
    ...
}

so to wrap that up (untested):

总结一下(未经测试)

$.fn.isDraggable = function() {
    return $(this).hasClass("ui-draggable");
}

console.log($("#someElement").isDraggable());

#2


0  

The dragstart event is fired when dragging is started. More in the docs

当拖动启动时,将触发dragstart事件。更多的文档

#1


12  

Maybe there's an easier way, but the docs say:

也许有更简单的方法,但是医生说:

Draggable elements gets a class of ui-draggable

Draggable元素获得一个ui-draggable类

so you could do something like:

你可以这样做:

if(!$("#foo").hasClass("ui-draggable")) {
    ...
}

so to wrap that up (untested):

总结一下(未经测试)

$.fn.isDraggable = function() {
    return $(this).hasClass("ui-draggable");
}

console.log($("#someElement").isDraggable());

#2


0  

The dragstart event is fired when dragging is started. More in the docs

当拖动启动时,将触发dragstart事件。更多的文档