Hyper-mega-noob-question,我一直绞尽脑汁思考如何将下一个/前一个按钮添加到Soh Tanaka发现的简单滑块上,并希望在这次尝试中寻求你的帮助。到目前为止,我已经使用滑块来处理工具提示并从xml加载图像(根据我的要求),但我是jQuery的新手,并且无法使下一个/上一个按钮工作:( ..这是到目前为止我得到了什么:
CSS
body {
margin: 0; padding: 0;
font: normal 10px Verdana, Arial, Helvetica, sans-serif;
}
*{outline: none;}
img {border: 0;}
.container {
width: 322px;
padding: 0;
margin:30px 10px 0 10px;
}
/*--Main Container--*/
.main_view {
position: relative;
}
/*--Window/Masking Styles--*/
.window {
height:270px; width: 320px;
overflow: hidden; /*--Hides anything outside of the set width/height--*/
position: relative;
}
.image_reel {
position: absolute;
top: 0; left: 0;
z-index:1;
}
/*--Paging Styles--*/
.paging {
position: relative;
width: 320px; height:35px;
text-align: center;
line-height: 35px;
display: none; /*--Hidden by default, will be later shown with jQuery--*/
}
.paging a {
padding: 0 2px;
text-decoration: none;
color: #000;
}
.paging a.active {
color: #fff;
font-weight: bold;
background: #920000;
border: 1px solid #610000;
-moz-border-radius: 3px;
-khtml-border-radius: 3px;
-webkit-border-radius: 3px;
}
.paging a:hover {font-weight: bold;}
.box {
margin:0;
padding:0;
display: block;
width:318px;
height:268px;
float: left;
border:1px solid #ddd;
-moz-border-radius: 5px;
-khtml-border-radius: 5px;
-webkit-border-radius: 5px;
}
.box h3 {
font-size: 16px;
text-align:center;
white-space:wrap;
}
.box img {
margin-left:40px;
margin-bottom:-5px;
}
.box .slider-title {
color: red;
margin-bottom:4px;
margin-top:6px;
}
.box .slider-subtitle {
width:320px;
float:left;
margin-bottom:4px;
}
.box .input_Default {
width:320px;
display:block;
float:left;
text-align:center;
}
.loading {
background: url(loading.gif) no-repeat 0 0;
position: absolute;
top: 30px;
left: 30px;
z-index: 9999;
}
.subt {
color: #fff;
background:#1d1d1d;
padding:10px;
position:absolute;
z-index:1000;
-webkit-border-radius: 3px;
-moz-border-radius: 3px;
border-radius: 3px;
}
.moreinfo .subt { display:none; }
JS
$(document).ready(function() {
$.ajax({
type: "GET",
cache: false,
url: "ads.xml",
data: 'xml',
success: function (d) {
$(d).find('promo').each(function(){
var $promo = $(this);
var title = $promo.find('title').text();
var subtitle = $promo.find('subtitle').text();
var image = $promo.attr('image');
var link = $promo.attr('link');
var index = $promo.attr('index');
var ads = '<div class="box"><h3 class="slider-title">' + title + '</h3>';
ads += '<dt> <a class="moreinfo" href="' + link + '" target="_blank"><img alt="' + subtitle + '" src="' + image + '" /><span class="subt">test sub</span></a></dt>';
//ads += '<dd> <span class="loading" alt="Loading" />';
ads += '<h3 class="slider-subtitle">' + subtitle + '</h3>' ;
ads += '<div class="input_Default"><a href="' + link + '">Learn More</a></div>';
ads += '</dd></div>';
var pager = '<a href="#" rel="' + index + '">' + index + '</a>';
$('.image_reel').append($(ads));
$('.paging').append($(pager));
//$('.loading').fadeOut(1400);
});
}
});
$('.image_reel').ajaxStop(function() {
$(".paging").show();
$(".paging a:first").addClass("active");
var imageWidth = $(".window").width();
var imageSum = $(".box").size();
var imageReelWidth = imageWidth * imageSum;
$(".image_reel").css({'width' : imageReelWidth});
rotate = function(){
var triggerID = $active.attr("rel") - 1;
var image_reelPosition = triggerID * imageWidth;
$(".paging a").removeClass('active');
$active.addClass('active');
$(".image_reel").animate({
left: -image_reelPosition
}, 800 );
};
rotateSwitch = function(){
play = setInterval(function(){
$active = $('.paging a.active').next();
if ( $active.length === 0) {
$active = $('.paging a:first');
}
rotate();
}, 7000);
};
rotateSwitch();
$(".image_reel a").hover(function() {
clearInterval(play);
}, function() {
rotateSwitch();
});
$(".paging a").click(function() {
$active = $(this);
clearInterval(play);
rotate();
rotateSwitch();
return false;
});
$(".next a").click(function() {
$active = $('.paging a.active').parent().next().find('a');
if ( $active.length === 0) { //If paging reaches the end…
$active = $('.paging a:first'); //go back to first
}
clearInterval(play); //Stop the rotation
rotate(); //Trigger rotation immediately
rotateSwitch(); // Resume rotation
return false; //Prevent browser jump to link anchor
});
$(".prev a").click(function() {
$active = $('.paging a.active').prev();
if ( $active.length === 0) { //If paging reaches the end…
$active = $('.paging a:first'); //go back to first
}
clearInterval(play); //Stop the rotation
rotate(); //Trigger rotation immediately
rotateSwitch(); // Resume rotation
return false; //Prevent browser jump to link anchor
});
$('.moreinfo').each(function() {
var subt = $(this).find('.subt');
$(this).hover(
function() { subt.appendTo('body'); },
function() { subt.appendTo(this); }
).mousemove(function(e) {
var x = e.pageX + 20,
y = e.pageY + 20,
w = subt.width(),
h = subt.height(),
dx = $(window).width() - (x + w),
dy = $(window).height() - (y + h);
if ( dx < 20 ) x = e.pageX - w - 20;
if ( dy < 20 ) y = e.pageY - h - 20;
subt.css({ left: x, top: y });
});
});
});
});
HTML
<div class="container">
<div class="window">
<div class="image_reel">
</div>
</div>
<div class="paging">
<a rel="nofollow" href="#" class="next" >next</a>
<a href="#" class="next" >next</a>
<a href="#" class="prev" rel="nofollow" >previous</a>
</div>
<a rel="nofollow" href="#" class="next" >next</a>
<a rel="nofollow" href="#" class="next" >next</a>
</div>
所有的图像和按钮都是从XML中提取的,而且工作正常,但是下一个/上一个按钮是我的主要问题:(。
以下是我在JSFiddle上进行测试的原始非XML版本, EDIT,原始版本 http://jsfiddle.net/scPqJ/1/
你们其中一个忍者可以向我展示正确的方向吗?
修改
对于任何寻找解决方案的下一代,sohtanaka.com上的用户评论帮助我解决了问题,这里是JsFiddle,http://jsfiddle.net/scPqJ/3/
这是按钮的Js(你在原始JS的末尾设置它,在结束括号之前:
JS
$(".previous a").click(function() {
$active = $('.paging a.active').next();
if ( $active.length === 0) { //If paging reaches the end...
$active = $('.paging a:first'); //go back to first
}
clearInterval(play); //Stop the rotation
rotate(); //Trigger rotation immediately
rotateSwitch(); // Resume rotation
return false; //Prevent browser jump to link anchor
});
$(".next a").click(function() {
$active = $('.paging a.active').prev();
if ( $active.length === 0) { //If paging reaches the end...
$active = $('.paging a:last'); //go back to first
}
clearInterval(play); //Stop the rotation
rotate(); //Trigger rotation immediately
rotateSwitch(); // Resume rotation
return false; //Prevent browser jump to link anchor
});
设置完之后,您所要做的就是在html中定义下一个/上一个div,如下所示:
HTML
<div class="next">
<a href="#" >next</a>
</div>
<div class="previous">
<a href="#" >previous</a>
</div>
和Voila!。
答案 0 :(得分:2)
这个应该有效(虽然它远非完美,请参阅下面的评论):
$('#next').click(function(){
var $pagingLinks = $('.paging a');
var $nowActive = $('.paging a.active');
var nextIndex = $nowActive.index()+1;
if(nextIndex == $pagingLinks.length) nextIndex = 0;
$active = $pagingLinks.eq(nextIndex);
//Reset Timer
clearInterval(play); //Stop the rotation
rotate(); //Trigger rotation immediately
rotateSwitch(); // Resume rotation
return false; //Prevent browser jump to link anchor
});
我假设你在这里有一个id'next'的链接在这里继续前进。您会注意到此代码的第二部分(以“重置计时器”开头)取自您的代码(用于单击分页链接的事件处理程序)。
注释:
在你的“分页”链接的代码中(我复制了部分内容)你正在处理一个变量'$ active'。这个变量是全局定义的(作为全局对象的属性),通常应该避免。你在这里使用jquery,所以将你的'滑块'代码封装在它自己的插件中肯定是有意义的(请参阅jquery docs以获得帮助)
而不是设置'$ active'变量,您可以使用.data()