js模仿windows桌面图标排列算法具体实现(附图)_javascript技巧

//菜单列表
var menu_list=$(".menu-list");

//工作区
var working=$(".working");

working.click(function() {
menu_list.hide();
$(".content-menu").hide("slow");
});

//菜单图标单击
$(".menu").bind("click",function() {
menu_list.show();

});
arrange();

$(window).resize(function() {
arrange();
});

//屏蔽右键菜单
$(document).contextmenu(function() {
return false;
});

//点击工作区的时候 显示右键菜单
$(".working").contextmenu(function(event) {

var x=event.clientX;
var y=event.clientY;
var menu=$(".content-menu");

//判断坐标
var width=document.body.clientWidth;
var height=document.body.clientHeight;

x=(x+menu.width())>=width?width-menu.width():x;
y=(y+menu.height())>=height-40?height-menu.height():y;

//alert("可视高度："+height+",鼠标高度："+y);
menu.css("top",y);
menu.css("left",x);
menu.show();

});

//content-menu
$(".content-menu ul li").click(function() {
var text=$(this).text();

switch (text) {
case "刷新":
document.location.reload();
break;
case "退出登录":
if(confirm("是否要退出登录？")){

}
break;
default:
break;
}

$(".content-menu").hide();
});
});
//排列图标部分
function arrange(){
var ul=$(".icons");
var working=$(".working");
//位置坐标
var position={x:0,y:0,bottom:110,width:50,height:50,parent:{height:0,width:0},padding:{top:10,left:10,right:0,bottom:10}};

position.parent.height=working.height()-40;
position.parent.width=working.width();

ul.find("li").each(function(index) {

$(this).css("top",position.y+"px");
$(this).css("left",position.x+"px");

position.height=$(this).height();
position.width=$(this).width();

position.y=position.y+position.height+position.padding.bottom+position.padding.bottom;

if(position.y>=position.parent.height-position.bottom){
position.y=0;
position.x=position.x+position.width+position.padding.left;
}
});
}

html代码：
代码如下:

for (var i = 1; i <= 4; i++) {
var html = "";
html += '

';
html += '';
html += '图标'+i+'';
html += '

窗体

$(".icons li").mousemove(function(){
$(this).addClass("icons-move");
});

$(".icons li").mouseout(function(){
$(this).removeClass("icons-move");
});

$(".icons li").mousedown(function(){
$(".icons li").removeClass("icons-focus");
$(this).addClass("icons-focus");
//改变当前的索引
$(".icons li").css("z-index",0);
$(this).css("z-index",1);
});

$(".icons li").dblclick(function(){
alert("double click");
});

//按键事件
$(document).keyup(function(event){
var UP=38;
var DOWM=40;
var ENTER=13;
var elem=$(".icons-focus");

if(elem.html()=="undefined")return;

if (event.keyCode == UP) {
$(".icons li").removeClass("icons-focus");
elem.prev().addClass("icons-focus");
}

if(event.keyCode==DOWM){
$(".icons li").removeClass("icons-focus");
elem.next().addClass("icons-focus");
}

//回车打开选中的图标
if(event.keyCode==ENTER){
var open=$(".icons-focus");
alert("ok enevt is enter");
}

});

//图标拖拽
$(".icons li").draggable();

//注册resize事件
$(".window").draggable({containment: 'parent'});
$(".window").resizable({containment: 'parent'});

CSS代码：
代码如下:
@CHARSET "UTF-8";
body, html {
overflow: hidden;
height: 100%;
width: 100%;
margin: 0px;
padding: 0px;
}
.working {
height: 100%;
width: 100%;
background-image: url("../images/untitled.png");
background-repeat: no-repeat;
background-color: rgb(235, 236, 238);
padding: 20px;
}
.working ul {
height: 100%;
position: relative;
}
.working ul li {
position: absolute;
display: block;
width: 90px;
height: 90px;
text-align: center;
margin: 0px 10px 10px 10px;
float: left;
border: inherit 1px inherit;
overflow: hidden;
cursor: pointer;
}
.taskbar {
position: absolute;
height: 35px;
line-height: 35px;
width: 100%;
bottom: 0px;
background-color: #CCC;
z-index: 999;
filter: alpha(opacity = 80);
opacity: 0.8;
padding: 0px 10px;
}
.menu {
display: block;
width: 50px;
height: 30px;
float: left;
}
.menu-list {
position: absolute;
left: 0px;
bottom: 35px;
width: 350px;
height: 500px;
border: #CCC 1px solid;
background-color: white;
filter: alpha(opacity = 90);
opacity: 0.9;
border-radius: 5px;
display: none;
}
ul {
margin: 0px;
padding: 0px;
}
.menu-icon {
cursor: pointer;
}
.menu-icon ul li {
display: block;
width: 15px;
height: 15px;
float: left;
margin: 1px;
background-color: white;
border-radius: 3px;
}
.menu-icon:hover li {
background-color: red;
}
.icons li img {
max-height: 70px;
max-width: 90px;
}
.text {
position: static;
height: 20px;
line-height: 20px;
width: 100%;
margin: 0px;
font-size: 12px;
font-family: 微软雅黑;
color: white;
}
.icons-move {
border: rgb(161, 194, 219) 1px solid;
background-color: rgb(194, 208, 226);
filter: alpha(opacity = 60);
opacity: 0.6;
border-radius: 3px;
}
.icons-focus {
border: rgb(161, 194, 219) 1px solid;
background-color: rgb(194, 208, 226);
filter: alpha(opacity = 100);
opacity: 1;
border-radius: 3px;
}
.window {
height: 200px;
width: 200px;
border: #CCC 1px solid;
background-color: white;
border-radius: 5px;
position: absolute;
top: 0px;
z-index: 10;
}
/*
* 右键菜单
*/
.content-menu {
position: absolute;
width: 150px;
height: auto;
background-color: rgb(255, 255, 255);
border: #CCC 1px solid;
display: none;
border-radius:5px;
z-index:999;
}
.content-menu ul {
margin: 0px;
padding: 0px;
}
.content-menu ul li {
list-style: none;
line-height: 30px;
height: 30px;
margin: 3px 0px;
padding:0px;
font-size: 13px;
}
.content-menu ul li a{
text-decoration:none;
display:block;
font-family: 微软雅黑;
padding:0px 5px;
width:140px;
height:100%;
color: #333;
outline:none;

}
.content-menu ul li a:hover {
background-color: #DDD;
}
.content-menu ul hr {
margin: 1px 0px;
height: 0px;
border: 0px;
border-bottom: #CCC 1px solid;
}