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JS implementation of landing page drag and drop function

Source: Internet
Author: User
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<! DOCTYPE html>
<meta charset= "UTF-8" >
<title> landing Page Drag-and-drop function realization </title>
<style type= "Text/css" >
*{
margin:0;
padding:0;
}
a{
Text-decoration:none;
}
. dialog{
width:380px;
Height:auto;
position:fixed;
z-index:1000;
border:1px solid #d5d5d5;
Background-color: #fff;
Display:none;
}
. diatitle{
height:48px;
line-height:40px;
Text-align:center;
Color: #535353;
Background-color: #f5f5f5;
}
. diacontent{
padding:15px 20px;
}
. close{
font-size:20px;
Float:right;
margin-right:20px;
}
#txt {
width:100%;
height:40px;
border:1px solid #ccc;
margin-bottom:10px;
}
#pwd {
width:100%;
height:40px;
border:1px solid #ccc;
margin-bottom:10px;
}
#btn {
Display:block;
width:80px;
height:40px;
margin:0 Auto;
Background-color: #CCCCCC;
Border:none;
Outline-style:none;
}
. mask{
Background-color: #000000;
opacity:0.4;
Filter:alpha (OPACITY=40);
z-index:900;
position:fixed;
top:0px;
left:0px;
Display:none;
}
</style>
<body style= "height:1500px" >
<div class= "Dialog" id= "dialog" >
<div class= "Diatitle" id= "Diatitle" >
Landing page
<a href= "#" class= "Close" >&times;</a>
</div>
<div class= "diacontent" id= "Diacontent" >
<form action= "Fsaf" method= "POST" >
<input type= "text" name= "" id= "txt" placeholder= "Please enter account"/>
<input type= "password" name= "" id= "pwd" placeholder= "Please enter password"/>
<div id= "" style= "TEXT-ALIGN:RIGHT;FONT-SIZE:12PX;" >
<a href= "#" > Forgot password </a>
</div>
<input type= "button" name= "" id= "btn" value= "Login"/>
<div id= "" style= "TEXT-ALIGN:RIGHT;FONT-SIZE:12PX;" >
<a href= "#" > Register now </a>
</div>
</form>
</div>
</div>
<div class= "Mask" >

</div>
<div id= "Login" >
Click to eject the landing layer
</div>
</body>
<script type= "Text/javascript" >
Window.onload=function () {
var close=document.getelementsbyclassname ("Close") [0];
var Dialog=document.getelementbyid ("dialog");
var Diatitle=document.getelementbyid ("Diatitle");
var Diacontent=document.getelementbyid ("Diacontent");
var mask=document.getelementsbyclassname ("Mask") [0];
var Isdraging=false; Whether the tag can be dragged
Diatitle.onmousedown=down;
Document.onmousemove=move;
Document.onmouseup=up;
var Login=document.getelementbyid ("Login");
Login.onclick=function () {
dialog.style.display= "Block";
mask.style.display= "Block";
}
Auto Center-landing floating layer
Close.onclick=function () {
Dialog.style.display= "None";
Mask.style.display= "None";
}

Center of landing Layer
AutoCenter ();
function AutoCenter () {
var bodyw = document.documentElement.clientWidth;
var bodyh = document.documentElement.clientHeight;
var ElW = dialog.offsetwidth;
var ElH = dialog.offsetheight;
Dialog.style.left = ((BODYW-ELW)/2-190) + ' px ';
Dialog.style.top = ((BODYH-ELH)/2-80) + ' px ';
}
Mask Layer
Filltobody ();
function Filltobody () {
Mask.style.width = document.documentElement.clientWidth + ' px ';
Mask.style.height = document.documentElement.clientHeight + ' px ';
}
Press the
function down () {
Diatitle.style.cursor= "Move";
Isdraging=true;
Objleft=dialog.offsetleft;
Objtop=dialog.offsettop;
PosX = parseint (MousePosition (event). x)
PosY = parseint (MousePosition (event). Y);
Offsetx=posx-objleft;
Offsety=posy-objtop;
}
Move
function Move (event) {
if (isdraging = = True) {
var x=mouseposition (event). X-offsetx;
var y=mouseposition (event). Y-offsety;
var w = document.documentelement.clientwidth-dialog.offsetwidth;
var h = document.documentelement.clientheight-dialog.offsetheight;
X=math.min (W,math.max (0,x));
Y=math.min (H,math.max (0,y));
Dialog.style.left = x + ' px ';
Dialog.style.top = y + ' px ';
}
}
Loosen
function up () {
Isdraging= false;
}
function MousePosition (evt) {
var xPos, YPos;
EVT = EVT | | window.event;
if (Evt.pagex) {
XPos = Evt.pagex;
YPos = Evt.pagey;
} else {
XPos = Evt.clientx + document.body.scrollleft-document.body.clientleft;
YPos = Evt.clienty + document.body.scrolltop-document.body.clienttop;
}
return {
X:xpos,
Y:ypos
}
}
}
</script>

JS implementation of landing page drag and drop function

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
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