如何向幻灯片添加下一个/上一个按钮

发布于 2024-10-28 01:05:55 字数 8373 浏览 3 评论 0原文

超级菜鸟问题,我一直在绞尽脑汁地思考如何将下一个/上一个按钮添加到我由 Soh Tanaka 找到的简单滑块中,并希望在这项工作中寻求您的帮助。到目前为止,我已经让滑块与工具提示一起使用,并从 xml 加载图像(根据我的要求),但我对 jQuery 还很陌生,无法让下一个/上一个按钮工作:(..Here is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>

所有图像和按钮都是从 XML 中提取的,效果很好,但下一个/上一个按钮是我的主要问题:(。

这是 JSFiddle i 上的原始非 XML 版本进行测试,编辑,原始版本 http://jsfiddle.net/scPqJ/ 1/

你们中的一位忍者能给我指明正确的方向吗?

编辑

对于任何正在寻找解决方案的未来一代,sohtanaka.com 评论中的一位用户帮助了我并使其发挥作用。 ,这里是JsFiddle, http://jsfiddle.net/scPqJ/3/

这是Js对于按钮(您将其设置在原始 JS 的末尾,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
}); 

设置完毕后,您所要做的就是定义 html 中的下一个/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>

和瞧! 。

Hyper-mega-noob-question, i've been racking my brain over how to add next/ previous buttons to a simple slider i found by Soh Tanaka and wanted to ask for your help in this endevour. So far i have gotten the slider to work with a tooltip and to load the images from an xml (per my requirement) but i'm pretty new to jQuery and can't get the next/previous buttons working :(..Here is what i got so far:

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>

All the images and buttons are pulled from an XML, and that works just fine but the next/prev buttons are my main issue :(.

Here is the original, non-XML version on JSFiddle i put up for testing, EDIT, original version http://jsfiddle.net/scPqJ/1/

Can one of you ninjas out there show me the right direction?

EDIT

for any future generation looking for a solution, a user in sohtanaka.com comments helped me out and got it working, here is the JsFiddle, http://jsfiddle.net/scPqJ/3/

This is the Js for the buttons (you set it in the end of the original JS, before the end brackets:

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
}); 

After you set that up, all you have to do is define the next/previous divs in the html, like so:

HTML

<div class="next">
<a href="#" >next</a>
</div>

<div class="previous">
<a href="#" >previous</a>
</div>

and Voila!.

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评论(1

时光无声 2024-11-04 01:05:55

这个应该可以工作(尽管它远非完美,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     
}); 

我假设您在这里有一个 id 为“next”的链接可以继续。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)。

评论:

  • 在“分页”链接的代码中(我复制了部分内容),您正在处理变量“$active”。该变量是全局定义的(作为全局对象的属性),通常应该避免这种情况。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文档以获取帮助)

  • 而不是设置“$active”变量,你可能只是使用 .data() 将此信息添加到插件的某些主要元素中,

this one should work (although it's far from perfect, see comments below):

$('#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     
}); 

i'm assuming here you got a link with id 'next' here to move on. you'll notice that the second part of this code (starting with 'Reset Timer') is taken from your code (the event handler for clicking on the paging links).

comments:

  • in the code of your 'paging' links (i copied parts of) you're dealing with a variable '$active'. this variable is defined globally (as a property of the global object), which should generally be avoided. you're using jquery here, so it would definitely make sense to encapsulate your 'slider' code in a plugin on it's own (see the jquery docs for help on this)

  • instead of setting a '$active' variable, you might just add this information to some main element of your plugin using .data()

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