首页
所有分类
TAGS
文字工具 EMOJI BIBLE
编程 Javascript

JavaScript模块随意拖动示例代码

Posted in Javascript onMay 27, 2014 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 
<title>JavaScript模块随意拖动</title> 
<style type="text/css"> 
html{ 
width:100%; 
overflow-x:hidden; 
} 
body{ 
font-family: Trebuchet MS, Lucida Sans Unicode, Arial, sans-serif; 
width:100%; 
margin:0px; 
padding:0px; 
text-align:center; 
background-color:#E2EBED; 
font-size:0.7em; 
overflow-x:hidden; 
} #mainContainer{ 
width:600px; 
margin:0 auto; 
text-align:left; 
background-color:#FFF; 
} 
h4{ 
margin:0px; 
} 
p{ 
margin-top:5px; 
} 
#dragableElementsParentBox{ 
padding:10px; 
} 
.smallArticle,.bigArticle{ 
float:left; 
border:1px solid #000; 
background-color:#DDD; 
padding:2px; 
margin-right:10px; 
margin-bottom:5px; 
} 
.smallArticle img,.bigArticle img{ 
float:left; 
padding:5px; 
} 
.smallArticle .rightImage,.bigArticle .rightImage{ 
float:right; 
} 
.smallArticle{ 
width:274px; 
} 
.bigArticle{ 
width:564px; 
} 
.clear{ 
clear:both; 
} 
#rectangle{ 
float:left; 
border:1px dotted #F00; 
background-color:#FFF; 
} 
#insertionMarker{ 
width:6px; 
position:absolute; 
display:none; 
} 
#insertionMarker img{ 
float:left; 
} 
#dragDropMoveLayer{ 
position:absolute; 
display:none; 
border:1px solid #000; 
filter:alpha(opacity=50); 
opacity:0.5; 
} 
</style> 
<script type="text/javascript"> 
var rectangleBorderWidth = 2; 
var useRectangle = false; 
var autoScrollSpeed = 4; 
function saveData() 
{ 
var saveString = ""; 
for(var no=0;no<dragableObjectArray.length;no++){ 
if(saveString.length>0)saveString = saveString + ';'; 
ref = dragableObjectArray[no]; 
saveString = saveString + ref['obj'].id; 
} 
alert(saveString); 
} 
var dragableElementsParentBox; 
var opera = navigator.appVersion.indexOf('Opera')>=0?true:false; 
var rectangleDiv = false; 
var insertionMarkerDiv = false; 
var mouse_x; 
var mouse_y; 
var el_x; 
var el_y; 
var dragDropTimer = -1; 
var dragObject = false; 
var dragObjectNextObj = false; 
var dragableObjectArray = new Array(); 
var destinationObj = false; 
var currentDest = false; 
var allowRectangleMove = true; 
var insertionMarkerLine; 
var dragDropMoveLayer; 
var autoScrollActive = false; 
var documentHeight = false; 
var documentScrollHeight = false; 
var dragableAreaWidth = false; 
function getTopPos(inputObj) 
{ 
var returnValue = inputObj.offsetTop; 
while((inputObj = inputObj.offsetParent) != null){ 
if(inputObj.tagName!='HTML')returnValue += inputObj.offsetTop; 
} 
return returnValue; 
} 
function getLeftPos(inputObj) 
{ 
var returnValue = inputObj.offsetLeft; 
while((inputObj = inputObj.offsetParent) != null){ 
if(inputObj.tagName!='HTML')returnValue += inputObj.offsetLeft; 
} 
return returnValue; 
} 
function cancelSelectionEvent() 
{ 
if(dragDropTimer>=0)return false; 
return true; 
} 
function getObjectFromPosition(x,y) 
{ 
var height = dragObject.offsetHeight; 
var width = dragObject.offsetWidth; 
var indexCurrentDragObject=-5; 
for(var no=0;no<dragableObjectArray.length;no++){ 
ref = dragableObjectArray[no]; 
if(ref['obj']==dragObject)indexCurrentDragObject=no; 
if(no<dragableObjectArray.length-1 && dragableObjectArray[no+1]['obj']==dragObject)indexCurrentDragObject=no+1; 
if(ref['obj']==dragObject && useRectangle)continue; 
if(x > ref['left'] && y>ref['top'] && x<(ref['left'] + (ref['width']/2)) && y<(ref['top'] + ref['height'])){ 
if(!useRectangle && dragableObjectArray[no]['obj']==dragObject)return 'self'; 
if(indexCurrentDragObject==(no-1))return 'self'; 
return Array(dragableObjectArray[no],no); 
} 
if(x > (ref['left'] + (ref['width']/2)) && y>ref['top'] && x<(ref['left'] + ref['width']) && y<(ref['top'] + ref['height'])){ 
if(no<dragableObjectArray.length-1){ 
if(no==indexCurrentDragObject || (no==indexCurrentDragObject-1)){ 
return 'self'; 
} 
if(dragableObjectArray[no]['obj']!=dragObject){ 
return Array(dragableObjectArray[no+1],no+1); 
}else{ 
if(!useRectangle)return 'self'; 
if(no<dragableObjectArray.length-2)return Array(dragableObjectArray[no+2],no+2); 
} 
}else{ 
if(dragableObjectArray[dragableObjectArray.length-1]['obj']!=dragObject)return 'append'; 
} 
} 
if(no<dragableObjectArray.length-1){ 
if(x > (ref['left'] + ref['width']) && y>ref['top'] && y<(ref['top'] + ref['height']) && y<dragableObjectArray[no+1]['top']){ 
return Array(dragableObjectArray[no+1],no+1); 
} 
} 
} 
if(x>ref['left'] && y>(ref['top'] + ref['height']))return 'append'; 
return false; 
} 
function initDrag(e) 
{ 
if(document.all)e = event; 
mouse_x = e.clientX; 
mouse_y = e.clientY; 
if(!documentScrollHeight)documentScrollHeight = document.documentElement.scrollHeight + 100; 
el_x = getLeftPos(this)/1; 
el_y = getTopPos(this)/1; 
dragObject = this; 
if(useRectangle){ 
rectangleDiv.style.width = this.clientWidth - (rectangleBorderWidth*2) +'px'; 
rectangleDiv.style.height = this.clientHeight - (rectangleBorderWidth*2) +'px'; 
rectangleDiv.className = this.className; 
}else{ 
insertionMarkerLine.style.width = '6px'; 
} 
dragDropTimer = 0; 
dragObjectNextObj = false; 
if(this.nextSibling){ 
dragObjectNextObj = this.nextSibling; 
if(!dragObjectNextObj.tagName)dragObjectNextObj = dragObjectNextObj.nextSibling; 
} 
initDragTimer(); 
return false; 
} 
function initDragTimer() 
{ 
if(dragDropTimer>=0 && dragDropTimer<10){ 
dragDropTimer++; 
setTimeout('initDragTimer()',5); 
return; 
} 
if(dragDropTimer==10){ 
if(useRectangle){ 
dragObject.style.opacity = 0.5; 
dragObject.style.filter = 'alpha(opacity=50)'; 
dragObject.style.cursor = 'default'; 
}else{ 
var newObject = dragObject.cloneNode(true); 
dragDropMoveLayer.appendChild(newObject); 
} 
} 
} 
function autoScroll(direction,yPos) 
{ 
if(document.documentElement.scrollHeight>documentScrollHeight && direction>0)return; 
window.scrollBy(0,direction); 
if(direction<0){ 
if(document.documentElement.scrollTop>0){ 
mouse_y = mouse_y - direction; 
if(useRectangle){ 
dragObject.style.top = (el_y - mouse_y + yPos) + 'px'; 
}else{ 
dragDropMoveLayer.style.top = (el_y - mouse_y + yPos) + 'px'; 
} 
}else{ 
autoScrollActive = false; 
} 
}else{ 
if(yPos>(documentHeight-50)){ 
mouse_y = mouse_y - direction; 
if(useRectangle){ 
dragObject.style.top = (el_y - mouse_y + yPos) + 'px'; 
}else{ 
dragDropMoveLayer.style.top = (el_y - mouse_y + yPos) + 'px'; 
} 
}else{ 
autoScrollActive = false; 
} 
} 
if(autoScrollActive)setTimeout('autoScroll('+direction+',' + yPos + ')',5); 
} 
function moveDragableElement(e) 
{ 
if(document.all)e = event; 
if(dragDropTimer<10)return; 
if(!allowRectangleMove)return false; 

if(e.clientY<50 || e.clientY>(documentHeight-50)){ 
if(e.clientY<50 && !autoScrollActive){ 
autoScrollActive = true; 
autoScroll((autoScrollSpeed*-1),e.clientY); 
} 
if(e.clientY>(documentHeight-50) && document.documentElement.scrollHeight<=documentScrollHeight && !autoScrollActive){ 
autoScrollActive = true; 
autoScroll(autoScrollSpeed,e.clientY); 
} 
}else{ 
autoScrollActive = false; 
} 
if(useRectangle){ 
if(dragObject.style.position!='absolute'){ 
dragObject.style.position = 'absolute'; 
setTimeout('repositionDragObjectArray()',50); 
} 
} 
if(useRectangle){ 
rectangleDiv.style.display='block'; 
}else{ 
insertionMarkerDiv.style.display='block'; 
dragDropMoveLayer.style.display='block'; 
} 
if(useRectangle){ 
dragObject.style.left = (el_x - mouse_x + e.clientX + Math.max(document.body.scrollLeft,document.documentElement.scrollLeft)) + 'px'; 
dragObject.style.top = (el_y - mouse_y + e.clientY) + 'px'; 
}else{ 
dragDropMoveLayer.style.left = (el_x - mouse_x + e.clientX + Math.max(document.body.scrollLeft,document.documentElement.scrollLeft)) + 'px'; 
dragDropMoveLayer.style.top = (el_y - mouse_y + e.clientY) + 'px'; 
} 
dest = getObjectFromPosition(e.clientX+Math.max(document.body.scrollLeft,document.documentElement.scrollLeft),e.clientY+Math.max(document.body.scrollTop,document.documentElement.scrollTop)); 
if(dest!==false && dest!='append' && dest!='self'){ 
destinationObj = dest[0]; 
if(currentDest!==destinationObj){ 
currentDest = destinationObj; 
if(useRectangle){ 
destinationObj['obj'].parentNode.insertBefore(rectangleDiv,destinationObj['obj']); 
repositionDragObjectArray(); 
}else{ 
if(dest[1]>0 && (dragableObjectArray[dest[1]-1]['obj'].offsetLeft + dragableObjectArray[dest[1]-1]['width'] + dragObject.offsetWidth) < dragableAreaWidth){ 
insertionMarkerDiv.style.left = (getLeftPos(dragableObjectArray[dest[1]-1]['obj']) + dragableObjectArray[dest[1]-1]['width'] + 2) + 'px'; 
insertionMarkerDiv.style.top = (getTopPos(dragableObjectArray[dest[1]-1]['obj']) - 2) + 'px'; 
insertionMarkerLine.style.height = dragableObjectArray[dest[1]-1]['height'] + 'px'; 
}else{ 
insertionMarkerDiv.style.left = (getLeftPos(destinationObj['obj']) - 8) + 'px'; 
insertionMarkerDiv.style.top = (getTopPos(destinationObj['obj']) - 2) + 'px'; 
insertionMarkerLine.style.height = destinationObj['height'] + 'px'; 
} 

} 
} 
} 
if(dest=='self' || !dest){ 
insertionMarkerDiv.style.display='none'; 
destinationObj = dest; 
} 
if(dest=='append'){ 
if(useRectangle){ 
dragableElementsParentBox.appendChild(rectangleDiv); 
dragableElementsParentBox.appendChild(document.getElementById('clear')); 
}else{ 
var tmpRef = dragableObjectArray[dragableObjectArray.length-1]; 
insertionMarkerDiv.style.left = (getLeftPos(tmpRef['obj']) + 2) + tmpRef['width'] + 'px'; 
insertionMarkerDiv.style.top = (getTopPos(tmpRef['obj']) - 2) + 'px'; 
insertionMarkerLine.style.height = tmpRef['height'] + 'px'; 
} 
destinationObj = dest; 
repositionDragObjectArray(); 
} 
if(useRectangle && !dest){ 
destinationObj = currentDest; 
} 
allowRectangleMove = false; 
setTimeout('allowRectangleMove=true',50); 
} 
function stop_dragDropElement() 
{ 
dragDropTimer = -1; 
if(destinationObj && destinationObj!='append' && destinationObj!='self'){ 
destinationObj['obj'].parentNode.insertBefore(dragObject,destinationObj['obj']); 
} 
if(destinationObj=='append'){ 
dragableElementsParentBox.appendChild(dragObject); 
dragableElementsParentBox.appendChild(document.getElementById('clear')); 
} 
if(dragObject && useRectangle){ 
dragObject.style.opacity = 1; 
dragObject.style.filter = 'alpha(opacity=100)'; 
dragObject.style.cursor = 'move'; 
dragObject.style.position='static'; 
} 
rectangleDiv.style.display='none'; 
insertionMarkerDiv.style.display='none'; 
dragObject = false; 
currentDest = false; 
resetObjectArray(); 
destinationObj = false; 
if(dragDropMoveLayer){ 
dragDropMoveLayer.style.display='none'; 
dragDropMoveLayer.innerHTML=''; 
} 
autoScrollActive = false; 
documentScrollHeight = document.documentElement.scrollHeight + 100; 
} 
function cancelEvent() 
{ 
return false; 
} 
function repositionDragObjectArray() 
{ 
for(var no=0;no<dragableObjectArray.length;no++){ 
ref = dragableObjectArray[no]; 
ref['left'] = getLeftPos(ref['obj']); 
ref['top'] = getTopPos(ref['obj']); 
} 
documentScrollHeight = document.documentElement.scrollHeight + 100; 
documentHeight = document.documentElement.clientHeight; 
} 
function resetObjectArray() 
{ 
dragableObjectArray.length=0; 
var subDivs = dragableElementsParentBox.getElementsByTagName('*'); 
var countEl = 0; 
for(var no=0;no<subDivs.length;no++){ 
var attr = subDivs[no].getAttribute('dragableBox'); 
if(opera)attr = subDivs[no].dragableBox; 
if(attr=='true'){ 
var index = dragableObjectArray.length; 
dragableObjectArray[index] = new Array(); 
ref = dragableObjectArray[index]; 
ref['obj'] = subDivs[no]; 
ref['width'] = subDivs[no].offsetWidth; 
ref['height'] = subDivs[no].offsetHeight; 
ref['left'] = getLeftPos(subDivs[no]); 
ref['top'] = getTopPos(subDivs[no]); 
ref['index'] = countEl; 
countEl++; 
} 
} 
} 
function initdragableElements() 
{ 
dragableElementsParentBox = document.getElementById('dragableElementsParentBox'); 
insertionMarkerDiv = document.getElementById('insertionMarker'); 
insertionMarkerLine = document.getElementById('insertionMarkerLine'); 
dragableAreaWidth = dragableElementsParentBox.offsetWidth; 
if(!useRectangle){ 
dragDropMoveLayer = document.createElement('DIV'); 
dragDropMoveLayer.id = 'dragDropMoveLayer'; 
document.body.appendChild(dragDropMoveLayer); 
} 
var subDivs = dragableElementsParentBox.getElementsByTagName('*'); 
var countEl = 0; 
for(var no=0;no<subDivs.length;no++){ 
var attr = subDivs[no].getAttribute('dragableBox'); 
if(opera)attr = subDivs[no].dragableBox; 
if(attr=='true'){ 
subDivs[no].style.cursor='move'; 
subDivs[no].onmousedown = initDrag; 
var index = dragableObjectArray.length; 
dragableObjectArray[index] = new Array(); 
ref = dragableObjectArray[index]; 
ref['obj'] = subDivs[no]; 
ref['width'] = subDivs[no].offsetWidth; 
ref['height'] = subDivs[no].offsetHeight; 
ref['left'] = getLeftPos(subDivs[no]); 
ref['top'] = getTopPos(subDivs[no]); 
ref['index'] = countEl; 
countEl++; 
} 
} 
rectangleDiv = document.createElement('DIV'); 
rectangleDiv.id='rectangle'; 
rectangleDiv.style.display='none'; 
dragableElementsParentBox.appendChild(rectangleDiv); 
document.body.onmousemove = moveDragableElement; 
document.body.onmouseup = stop_dragDropElement; 
document.body.onselectstart = cancelSelectionEvent; 
document.body.ondragstart = cancelEvent; 
window.onresize = repositionDragObjectArray; 
documentHeight = document.documentElement.clientHeight; 
} 
window.onload = initdragableElements; 
</script> 
<div id="mainContainer"> 
<!-- START DRAGABLE CONTENT --> 
<div id="dragableElementsParentBox"> 
<div class="bigArticle" dragableBox="true" id="article1"> 
<h4>Heading 1</h4> 
<p>Splendida porro oculi fugitant vitantque tueri. sol etiam caecat, contra si tendere pergas,propterea quia vis magnast ipsius et altea?ra per purum simulacra ferunturet feriunt oculos turbantia composituras.</p> 
</div> 
<div class="smallArticle" dragableBox="true" id="article2"> 
<h4>Heading 2</h4> 
<p>Splendida porro oculi fugitant vitantque tueri. sol etiam caecat, contra si tendere pergas,propterea quia vis magnast.</p> 
</div> 
<div class="smallArticle" dragableBox="true" id="article3"> 
<h4>Heading 3</h4> 
<p>Splendida porro oculi fugitant vitantque tueri. sol etiam caecat, contra si tendere pergas,propterea quia vis magnast.</p> 
</div> 
<div class="bigArticle" dragableBox="true" id="article4"> 
<h4>Heading 4</h4> 
<p> Splendida porro oculi fugitant vitantque tueri. sol etiam caecat, contra si tendere pergas,propterea quia vis magnast ipsius et altea?ra per purum simulacra ferunturet feriunt oculos turbantia composituras.</p> 
</div> 
<div class="smallArticle" dragableBox="true" id="article5"> 
<h4>Heading 5</h4> 
<p>Splendida porro oculi fugitant vitantque tueri. sol etiam caecat, contra si tendere pergas,propterea quia vis magnast.</p> 
</div> 
<div class="smallArticle" dragableBox="true" id="article6"> 
<h4>Heading 6</h4> 
<p>Splendida porro oculi fugitant vitantque tueri. sol etiam caecat, contra si tendere pergas,propterea quia vis magnast.</p> 
</div> 
<div class="bigArticle" dragableBox="true" id="article7"> 
<h4>Heading 7</h4> 
<p>Splendida porro oculi fugitant vitantque tueri. sol etiam caecat, contra si tendere pergas,propterea quia vis magnast ipsius et altea?ra per purum simulacra ferunturet feriunt oculos turbantia composituras.</p> 
</div> 
<div class="bigArticle" dragableBox="true" id="article8"> 
<h4>Heading 8</h4> 
<p>Splendida porro oculi fugitant vitantque tueri. sol etiam caecat, contra si tendere pergas,propterea quia vis magnast ipsius et altea?ra per purum simulacra ferunturet feriunt oculos turbantia composituras.</p> 
</div> 
<div class="bigArticle" dragableBox="true" id="article9"> 
<h4>Heading 9</h4> 
<p>Splendida porro oculi fugitant vitantque tueri. sol etiam caecat, contra si tendere pergas,propterea quia vis magnast ipsius et altea?ra per purum simulacra ferunturet feriunt oculos turbantia composituras.</p> 
</div> 
<div class="clear" id="clear"></div> 
</div> 
<!-- END DRAGABLE CONTENT --> 
<input type="button" value="Save" onclick="saveData()"> 
</div> 
<!-- REQUIRED DIVS --> 
<div id="insertionMarker"> 
<img src="/jscss/demoimg/200906/marker_top.gif"> 
<img src="/jscss/demoimg/200906/marker_middle.gif" id="insertionMarkerLine"> 
<img src="/jscss/demoimg/200906/marker_bottom.gif"> 
</div> 
<!-- END REQUIRED DIVS --> 
</head> 
<body> 
</body> 
</html>

JavaScript模块随意拖动示例代码

声明：登载此文出于传递更多信息之目的，并不意味着赞同其观点或证实其描述。

Javascript 相关文章推荐
了解jQuery技巧来提高你的代码
Jan 08 Javascript
js 异步处理进度条
Apr 01 Javascript
从阶乘函数对比Javascript和C#的异同
May 31 Javascript
js 编码转换 gb2312 和 utf8 互转的2种方法
Aug 07 Javascript
javascript 树形导航菜单实例代码
Aug 13 Javascript
JavaScript中用getDate()方法返回指定日期的教程
Jun 09 Javascript
jQuery实现简单的列表式导航菜单效果代码
Aug 31 Javascript
js多功能分页组件layPage使用方法详解
May 19 Javascript
JS简单实现浮动窗口效果示例
Sep 07 Javascript
Bootbox将后台JSON数据填充Form表单的实例代码
Sep 10 Javascript
微信小程序实现授权登录
May 15 Javascript
vue使用自定义事件的表单输入组件用法详解【日期组件与货币组件】
Jun 01 Javascript
javascript中不提供sleep功能如何实现这个功能
May 27 #Javascript
js实现网页自动刷新可制作节日倒计时效果
May 27 #Javascript
纯js实现遮罩层效果原理分析
May 27 #Javascript
使用jquery animate创建平滑滚动效果（可以是到顶部、到底部或指定地方）
May 27 #Javascript
JQuery获取表格数据示例代码
May 26 #Javascript
chrome下img加载对height()的影响示例探讨
May 26 #Javascript
chrome下jq width()方法取值为0的解决方法
May 26 #Javascript
事件调度器(1) while(1) 分词器(1) sched(1) okenizer(1) scss(1) watch(1) 监听(2) 无限迭代(1) re模块(2)
You might like
php socket客户端及服务器端应用实例
2014/07/04 PHP
PHP对象链式操作实现原理分析
2016/10/09 PHP
php简单实现文件或图片强制下载的方法
2016/12/06 PHP
PHP实现的redis主从数据库状态检测功能示例
2017/07/20 PHP
PHP Swoole异步读取、写入文件操作示例
2019/10/24 PHP
javascript入门·动态的时钟,显示完整的一些方法,新年倒计时
2007/10/01 Javascript
js delete 用法(删除对象属性及变量)
2014/08/24 Javascript
JSON取值前判断
2014/12/23 Javascript
JS实现黑色风格的网页TAB选项卡效果代码
2015/10/09 Javascript
jquery+css实现动感的图片切换效果
2015/11/25 Javascript
javascript 小数乘法结果错误的处理方法
2016/07/28 Javascript
AngularJS基础 ng-mouseover 指令简单示例
2016/08/02 Javascript
javaScript嗅探执行神器-sniffer.js
2017/02/14 Javascript
ES6下React组件的写法示例代码
2017/05/04 Javascript
vue2实现可复用的轮播图carousel组件详解
2017/11/27 Javascript
vue.js绑定事件监听器示例【基于v-on事件绑定】
2018/07/07 Javascript
vue利用v-for嵌套输出多层对象,分别输出到个表的方法
2018/09/07 Javascript
玩转Koa之核心原理分析
2018/12/29 Javascript
使用Vant完成Dialog弹框案例
2020/11/11 Javascript
Python正则表达式非贪婪、多行匹配功能示例
2017/08/08 Python
python实现支付宝当面付（扫码支付）功能
2018/05/30 Python
python散点图实例之随机漫步
2018/08/27 Python
在Pycharm中对代码进行注释和缩进的方法详解
2019/01/20 Python
python网络编程 使用UDP、TCP协议收发信息详解
2019/08/29 Python
将python文件打包exe独立运行程序方法详解
2020/02/12 Python
Python如何在DataFrame增加数值
2020/02/14 Python
完美解决python针对hdfs上传和下载的问题
2020/06/05 Python
Clarks鞋法国官方网站：英国其乐鞋品牌
2018/02/11 全球购物
小区消防演习方案
2014/02/21 职场文书
环保建议书作文
2014/03/12 职场文书
辣妈辣妹观后感
2015/06/10 职场文书
初三毕业感言
2015/07/31 职场文书
物资采购管理制度
2015/08/06 职场文书
Pandas数据类型之category的用法
2021/06/28 Python
php访问对象中的成员的实例方法
2021/11/17 PHP
详解Go语言中Get/Post请求测试
2022/06/01 Golang