在javascript中拖动并替换DIV
我想在javascript中拖动并替换div。例如:我有两个Div。如果我拖动第二个Div并将其放置在第一个Div上,第一个Div将自动替换到第二个位置。我现在的代码是重叠的 我的aspx页面在javascript中拖动并替换DIV,javascript,Javascript,我想在javascript中拖动并替换div。例如:我有两个Div。如果我拖动第二个Div并将其放置在第一个Div上,第一个Div将自动替换到第二个位置。我现在的代码是重叠的 我的aspx页面 <body> <div id="container"> <div id="info"> Start drag process...</div> <div id="square" style="position: rela
<body>
<div id="container">
<div id="info">
Start drag process...</div>
<div id="square" style="position: relative; width: 60px; height: 60px; background: #990033;
border: 2px solid #3399CC;">
</div>
<div id="Div1" style="position: relative; width: 60px; height: 60px; background: #efe;
border: 2px solid #3399CC;">
</div>
<script type="text/javascript">
var square = DragHandler.attach(document.getElementById('square'));
var Div1 = DragHandler.attach(document.getElementById('Div1'));
</script>
</div>
*
*横穿式拖曳处理器
*
*
**/
var DragHandler={
// private property.
_oElem : null,
// public method. Attach drag handler to an element.
attach : function(oElem) {
oElem.onmousedown = DragHandler._dragBegin;
// callbacks
oElem.dragBegin = new Function();
oElem.drag = new Function();
oElem.dragEnd = new Function();
return oElem;
},
// private method. Begin drag process.
_dragBegin : function(e) {
var oElem = DragHandler._oElem = this;
if (isNaN(parseInt(oElem.style.left))) { oElem.style.left = '0px'; }
if (isNaN(parseInt(oElem.style.top))) { oElem.style.top = '0px'; }
var x = parseInt(oElem.style.left);
var y = parseInt(oElem.style.top);
e = e ? e : window.event;
oElem.mouseX = e.clientX;
oElem.mouseY = e.clientY;
oElem.dragBegin(oElem, x, y);
document.onmousemove = DragHandler._drag;
document.onmouseup = DragHandler._dragEnd;
return false;
},
// private method. Drag (move) element.
_drag : function(e) {
var oElem = DragHandler._oElem;
var x = parseInt(oElem.style.left);
var y = parseInt(oElem.style.top);
e = e ? e : window.event;
oElem.style.left = x + (e.clientX - oElem.mouseX) + 'px';
oElem.style.top = y + (e.clientY - oElem.mouseY) + 'px';
oElem.mouseX = e.clientX;
oElem.mouseY = e.clientY;
oElem.drag(oElem, x, y);
return false;
},
// private method. Stop drag process.
_dragEnd : function() {
var oElem = DragHandler._oElem;
var x = parseInt(oElem.style.left);
var y = parseInt(oElem.style.top);
oElem.dragEnd(oElem, x, y);
document.onmousemove = null;
document.onmouseup = null;
DragHandler._oElem = null;
}
}
如何做到这一点…以下是识别部分:
for (var i = 0; i < document.getElementsByClassName("draggable").length; i++) {
var elem = document.getElementsByClassName("draggable")[i];
if (elem != oElem) {
if (oElem.offsetTop + parseInt(oElem.style.height) > elem.offsetTop
&& oElem.offsetTop < elem.offsetTop + parseInt(elem.style.height)) {
if (oElem.offsetLeft + parseInt(oElem.style.width) > elem.offsetLeft
&& oElem.offsetLeft < elem.offsetLeft + parseInt(elem.style.width)) {
alert("overlapping");
}
}
}
}
for(var i=0;ielem.offsetTop
&&oElem.offsetTopelem.offsetLeft
&&oElem.offsetLeft
你的部门需要一个“可拖动”的课程。
演示:您能为我们创建一个工作演示吗?编辑:Nevermind已经创建了一个,我来看看。是的,演示中发生了什么,对我来说发生了同样的事情…我只是想替换div。好了,我为你添加了重叠识别:如果你想替换它,只需将拖动的元素的位置值指定给另一个元素。
element.style.left
或element.offsetLeft
。如果使用第一个,请使用parseInt()
。因为style.left
返回一个末尾带有“px”的字符串。
for (var i = 0; i < document.getElementsByClassName("draggable").length; i++) {
var elem = document.getElementsByClassName("draggable")[i];
if (elem != oElem) {
if (oElem.offsetTop + parseInt(oElem.style.height) > elem.offsetTop
&& oElem.offsetTop < elem.offsetTop + parseInt(elem.style.height)) {
if (oElem.offsetLeft + parseInt(oElem.style.width) > elem.offsetLeft
&& oElem.offsetLeft < elem.offsetLeft + parseInt(elem.style.width)) {
alert("overlapping");
}
}
}
}