【发布时间】：2010-05-25 12:02:33
【问题描述】：
我正在调整 Coverflow technique 以使用 div。以下是html：
<html>
<head>
<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
<style type="text/css" media="screen">
body,html {
margin: 0;
padding: 0;
background: #000;
height: 100%;
color: #eee;
font-family: Arial;
font-size: 10px;
}
div.magnifyme {
height: 80px;
padding: 80px;
position: absolute;
top: 0px;
left: 0px;
width: 2000px;
}
div.wrapper {
margin: 0px;
height: 470px;
/*border: 2px solid #999;*/
overflow: hidden;
padding-left: 40px;
right: 1px;
width: 824px;
position: relative;
}
div.container {position: relative; width: 854px; height: 480px; background: #000; margin: auto;}
div.nav {position: absolute; top: 10px; width: 20%; height: 10%; right: 1px; }
div.magnifyme div {
position: absolute;
width: 300px;
height: 280px;
float: left;
margin: 5px;
position: relative;
border: 2px solid #999;
background: #500;
}
</style>
<script type="text/javascript" src="jquery-1.3.2.js"></script>
<script type="text/javascript" src="ui.coverflow.js"></script>
<script type="text/javascript" src="ui.core.js"></script>
<script type="text/javascript">
$(function() {
$("div.magnifyme").coverflow();
$("#add").click(function() {
$(".magnifyme").append("<div id=\"div5\">hello world</div>");
$("div.magnifyme").coverflow();
});
});
</script>
</head>
<body>
<div class="container">
<div class="wrapper">
<div class="magnifyme">
<div id="div0">This is div 0</div>
<div id="div1">This is div 1</div>
<div id="div2">This is div 2</div>
<div id="div3">This is div 3</div>
<div id="div4">This is div 4</div>
</div>
</div>
<div class="nav">
<button type="button" id="add">Add to Deck</button>
</div>
</div>
</body>
</html>
coverflow 函数（作为 js 文件包含在 head 部分中）是 here。当我单击该按钮时，我希望它将 DIV 添加到已经存在的卡组中。由于某种原因，它没有显示新添加的 DIV。添加新元素后，我尝试调用 coverflow() 函数，但这也不起作用。修改后的coverflow函数在这里给出：
;(function($){
$.widget("ui.coverflow", {
init: function() {
var self = this;
this.items = $(this.options.items, this.element).bind("click", function() {
self.moveTo(this);
//$("div.slider").slider("moveTo", self.current, null, true);
});
this.itemWidth = this.items.outerWidth(true);
this.current = 0; //Start item
this.refresh(1, 0, this.current);
this.element.css("left",
(-this.current * this.itemWidth/2)
+ (this.element.parent()[0].offsetWidth/2 - this.itemWidth/2) //Center the items container
- (parseInt(this.element.css("paddingLeft")) || 0) //Subtract the padding of the items container
);
},
moveTo: function(item) {
this.previous = this.current;
this.current = !isNaN(parseInt(item)) ? parseInt(item) : this.items.index(item);
if(this.previous == this.current) return false; //Don't animate when clicking on the same item
var self = this, to = Math.abs(self.previous-self.current) <=1 ? self.previous : self.current+(self.previous < self.current ? -1 : 1);
$.fx.step.coverflow = function(fx) {
self.refresh(fx.now, to, self.current);
};
this.element.stop().animate({
coverflow: 1,
left: (
(-this.current * this.itemWidth/2)
+ (this.element.parent()[0].offsetWidth/2 - this.itemWidth/2) //Center the items container
- (parseInt(this.element.css("paddingLeft")) || 0) //Subtract the padding of the items container
)
}, {
duration: 1000,
easing: "easeOutQuint"
});
/*current = this.current;
$("[id^=div]").each(function() {
if(this.id != "div"+current) {
console.info(this.id + " Current: " + current);
$(this).fadeTo( 'slow', 0.1);
}
});*/
},
refresh: function(state,from,to) {
var self = this, offset = null;
this.items.each(function(i) {
var side = (i == to && from-to < 0 ) || i-to > 0 ? "left" : "right";
var mod = i == to ? (1-state) : ( i == from ? state : 1 );
var before = (i > from && i != to);
$(this).css({
webkitTransform: "matrix(1,"+(mod * (side == "right" ? -0.5 : 0.5))+",0,1,0,0) scale("+(1+((1-mod)*0.5))+")",
left: (
(-i * (self.itemWidth/2))
+ (side == "right"? -self.itemWidth/2 : self.itemWidth/2) * mod //For the space in the middle
),
zIndex: self.items.length + (side == "left" ? to-i : i-to)
});
if(!$.browser.msie)
$(this).css("opacity", 1 - Math.abs((side == "left" ? to-i : i-to))/2);
});
}
});
$.extend($.ui.coverflow, {
defaults: {
items: "> *"
}
});
})(jQuery);
我注意到的一件事是，在单击按钮大约 5-10 次后，元素会显示出来，但不是与已经存在的 div 一起出现，而是在它们下方。我猜这与 magnifyme 类（2000px）的 CSS 有关，但我不确定它是什么。有什么办法可以使这项工作？
【问题讨论】：
标签： javascript jquery html css