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PONewbie jQuery question: Need slideshow to rotate automatically, not just when clicking navigation
 

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  1. PONewbie jQuery question: Need slideshow to rotate automatically, not just when clicking navigation
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    <p>This is my first post, so please forgive me if this question has been asked a million times. I'm a self professed jQuery hack and I need a little guidance on taking this script I found and adapting it to my needs. </p> <p>Anyway, what I'm making is an image slide show with navigation. The script I found does this, but does not automatically cycle through the images. I'm using jQuery 1.3.2 and would rather stick with that than using the newer library. I would also prefer to edit what is already here rather than start from scratch. </p> <p>Anywho, here's the html:</p> <pre><code> &lt;div id="slideshow-container"&gt; &lt;div id="myslide"&gt; &lt;div class="cover"&gt; &lt;div class="mystuff"&gt; &lt;img alt="&amp;nbsp;" src="image1.jpg" /&gt; &lt;/div&gt; &lt;div class="mystuff"&gt; &lt;img alt="&amp;nbsp;" src="image2.jpg" /&gt; &lt;/div&gt; &lt;div class="mystuff"&gt; &lt;img alt="&amp;nbsp;" src="image3.jpg" /&gt; &lt;/div&gt; &lt;div class="mystuff"&gt; &lt;img alt="&amp;nbsp;" src="image4.jpg" /&gt; &lt;/div&gt; &lt;/div&gt; &lt;!-- end of div cover --&gt; &lt;/div&gt; &lt;!-- end of div myslide --&gt; &lt;div id="button"&gt; &lt;a class="button1 active" rel="1" href="#"&gt;1&lt;/a&gt; &lt;a class="button2" rel="2" href="#"&gt;2&lt;/a&gt; &lt;a class="button3" rel="3" href="#"&gt;3&lt;/a&gt; &lt;a class="button4" rel="4" href="#"&gt;4&lt;/a&gt; &lt;/div&gt; &lt;!-- end of div button--&gt; &lt;/div&gt;&lt;!-- end of slideshow-container --&gt; </code></pre> <p>And here's the jQuery:</p> <pre><code> &lt;script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"&gt;&lt;/script&gt; &lt;script type="text/JavaScript"&gt; $(document).ready(function (){ $('#button a').click(function(){ var integer = $(this).attr('rel'); $('#myslide .cover').css({left:-820*(parseInt(integer)-1)}).hide().fadeIn(); /*----- Width of div #mystuff (here 820) ------ */ $('#button a').each(function(){ $(this).removeClass('active'); if($(this).hasClass('button'+integer)){ $(this).addClass('active')} }); }); }); &lt;/script&gt; </code></pre> <p>Here's where I got the script: <a href="http://www.webdeveloperjuice.com/2010/04/07/create-lightweight-jquery-fade-manual-slideshow" rel="nofollow noreferrer">http://www.webdeveloperjuice.com/2010/04/07/create-lightweight-jquery-fade-manual-slideshow/</a></p> <p>Again, if this question is too basic for this site please let me know and possibly provide a reference link or two. Thanks a ton!</p> <p><strong>Edit:</strong> I actually tried Matt's suggestion earlier but was unclear on the syntax of using setInterval with what I was working with. Here is the code that I was working with earlier, that isolates the image change. When this is loaded, the initial image loads with a fade animation but nothing else happens.</p> <pre><code> &lt;script type="text/JavaScript"&gt; $(document).ready(function(){ var integer = $(this).attr('rel'); $('#myslide .cover').css({left:-820*(parseInt(integer)-1)}).hide().fadeIn(); /*----- Width of div #mystuff (here 820) ------ */ }); &lt;/script&gt; </code></pre> <p>Obviously this doesn't include setInterval() but that's because, frankly, I'm clueless about the syntax and application of setInterval(). </p> <p><strong>Solution provided by nate and adapted slightly:</strong></p> <pre><code> &lt;script&gt; // Consider calculating these values instead of hard-coding them. // The "currrentFrame" is the id with the "active" class, // and the totalFrames could be counted with jQuery. var currentFrame = 1; var totalFrames = 4; var timeoutId; $(document).ready(function (){ // Handle the numbered button clicks $('#button a').click(function(){showFrame($(this).attr('rel')); }); //automatically handle slide rotation $('document').ready(function(){getNextFrame($(this).attr('rel')); setInterval("getNextFrame()",3000); // time in milliseconds }); }); // I put the contents of the original click handler here // so that it could be called by both the button and the timer. function showFrame(integer){ $('#myslide .cover').css({left:-820*(parseInt(integer)-1)}).hide().fadeIn(); $('#button a').each(function(){ $(this).removeClass('active'); if($(this).hasClass('button'+integer)){ $(this).addClass('active')} }); // storing the current frame globally currentFrame = integer; }; // determine the next frame using the // currentFrame global. Again, a better way // to do this could be to calculate the current // frame with jquery... function getNextFrame() { currentFrame = parseInt(currentFrame); currentFrame++; if(currentFrame &gt; totalFrames) currentFrame = 1; showFrame(currentFrame); } &lt;/script&gt; </code></pre>
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    1. COSo, you want it to cycle the images automatically. Do you want to hide the buttons as well?
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    2. COHi John, thanks for the reply. No, I'd like to keep the navigation functional as well as have the slides cycle automatically. Otherwise I'd scrap it all and just use the Cycle plugin. In my mind, it seems like I have enough here to add an extra function or two to get the thing to cycle automatically, but we all know that just because we think it'll be easy doesn't mean it will be!
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