Jump to content

[solved]Photo slide show


Craig Hopson
 Share

Recommended Posts

Hi i use this script to slideshow all pictures in a folder but i want it to pick up if a new photo is uploaded with out having to refresh the browser anyone have any ideas

var fullpageslideshow={imagesarr:[], layers:null, thumbs:null, layerorder:{fg:1, bg:0}, curimage:0, previmage:0,setting:{fadeduration:1000, autorotate:{enabled:true, pause:3000}, thumbdimensions:[50,50], sortby:'date', thumbdir:''},signalcomplete:function(){  var slideshow=this, imagesarr=this.imagesarr, thumbs=this.thumbs, templayer=this.templayer, setting=this.setting, imagecount=0  function createthumbnail(i, imageref, thumbref){   var thumbimgsrc=(setting.imagesobj.baseurl)? setting.thumbdir+setting.imagesobj.images[i][1] : imageref.src   thumbref.html('<img src="'+thumbimgsrc+'" style="width:'+setting.thumbdimensions[0]+'px;height:'+setting.thumbdimensions[1]+'px" />')   thumbref.find('img:eq(0)').css({opacity:0.3})  }  function process(i, imageref, thumbref){   templayer.append('<img src="'+imageref.src+'" />')   var tempimage=templayer.find('img:last')   imageref._specs={w:tempimage.width(), h:tempimage.height()}   thumbref.find('img:eq(0)').css({opacity:1})   if (i==slideshow.curimage){ //if first image has loaded	slideshow.changeimage(slideshow.curimage, true)	if (setting.autorotate.enabled)	 setting.rotatetimer=setInterval(function(){slideshow.cycleimage()}, setting.autorotate.pause)   }   imagecount++   if (imagecount==imagesarr.length){	templayer.remove()   }  }  for (var i=0; i<imagesarr.length; i++){   createthumbnail(i, imagesarr[i], thumbs.eq(i))   if (imagesarr[i].complete){	process(i, imagesarr[i], thumbs.eq(i))   }   else{	imagesarr[i].onload=function(){	 var pos=this._index	 process(pos, this, thumbs.eq(pos))	}   }  }},scaleimage:function(imageref){  var od=imageref._specs, windoww=$(window).width(), windowh=$(window).height()  var neww=(od.w>od.h)? windoww : Math.round(windowh*od.w/od.h)  var newh=Math.round(neww*od.h/od.w)  if (neww>windoww){   neww=windoww   newh=Math.round(neww*od.h/od.w)  }  else if (newh>windowh){   newh=windowh   neww=Math.round(newh*od.w/od.h)  }  var xpos=(neww>=windoww)? 0 : windoww/2-neww/2  var ypos=(newh>=windowh)? 0 : windowh/2-newh/2  return {width:neww+'px', height:newh+'px', left:xpos+'px', top:ypos+'px', position:'absolute'}},changeimage:function(i, forcechange){  var layers=this.layers, imagesarr=this.imagesarr, layerorder=this.layerorder, thumbs=this.thumbs, setting=this.setting  var fglayer=layers.eq(layerorder.fg), bglayer=layers.eq(layerorder.bg)  if (!imagesarr[i].complete && typeof forcechange=="undefined")   return	bglayer.stop(true,true).css({opacity:1, zIndex:999}).empty().append($('<img src="'+imagesarr[i].src+'" />').css(this.scaleimage(imagesarr[i]))) //update background layer's image  fglayer.css({opacity:1, zIndex:1000}).stop(true,true).animate({opacity:0}, setting.fadeduration, function(){   bglayer.css('z-index', 1000)   fglayer.css('z-index', 999)  })  layerorder.fg=layerorder.fg==1? 0 : 1  layerorder.bg=layerorder.bg==1? 0 : 1  this.previmage=this.curimage  this.curimage=i  thumbs.eq(this.previmage).find('img:eq(0)').removeClass('selected')  thumbs.eq(i).find('img:eq(0)').addClass('selected')},cycleimage:function(){  var nextimage=(this.curimage<this.imagesarr.length-1)? this.curimage+1 : 0  this.changeimage(nextimage)},init:function(options){  this.setting=$.extend({}, this.setting, options)  this.setting.autorotate.pause+=this.setting.fadeduration  var images=options.imagesobj.images || options.imagesobj, imagesarr=this.imagesarr  images.pop()  if (options.imagesobj.baseurl){ //if images are auto retrieved using PHP   this.setting.thumbdir=options.imagesobj.baseurl+this.setting.thumbdir+"/" //augment thumbnail directory with baseurl to form full URL to thumbs dir   if (options.sortby=="date")	images.sort(function(a,{return new Date(b[2])-new Date(a[2])})   else{	images.sort(function(a,{ //sort by file name	 var filea=a[1].toLowerCase(), fileb=b[1].toLowerCase()	 return (filea<fileb)? -1 : (filea>fileb)? 1 : 0	})     }  }  var thumbsarr=['<ul class="fpthumbs" style="z-index:1001">']  for (var i=0; i<images.length; i++){   imagesarr[i]=new Image()   imagesarr[i].src=(options.imagesobj.baseurl)? options.imagesobj.baseurl+images[i][1] : images[i]   imagesarr[i]._index=i   thumbsarr.push('<li></li>')  }  thumbsarr.push('</ul>')  jQuery(function($){   var slideshow=fullpageslideshow   var layers=$('<div style="position:absolute;left:0;top:0; width:100%; height:100%;overflow:hidden;background:black;" />').clone().andSelf().appendTo(document.body)   var thumbs=$(thumbsarr.join('')).appendTo(document.body)   thumbs=thumbs.find('li')   thumbs.each(function(i){	var $thumb=$(this)	this._index=i	$thumb.css({left: 60*i+20})	$thumb.click(function(){	 clearTimeout(slideshow.setting.rotatetimer)	 slideshow.changeimage(this._index)	})   })   slideshow.layers=layers   slideshow.thumbs=thumbs   slideshow.templayer=$('<div style="position:absolute;left:-5000px;top:-5000px;visibility:hidden" />').appendTo(document.body)   slideshow.signalcomplete()   $(window).resize(function(){	if (imagesarr[slideshow.curimage].complete==true)	 var cssattr=slideshow.scaleimage(imagesarr[slideshow.curimage])	 slideshow.layers.eq(slideshow.layerorder.fg).find('img').css(cssattr)   })  })}}/////////////INITIALIZE SCRIPT BELOW:fullpageslideshow.init({ //initialize scriptimagesobj: fpslideshowvar, //no need to change. Object variable referencing images as generated inside "fpslideshow.php"thumbdir: '', //sub directory directly below main images directory containing the thumbnail versions. Image names should be same as main images.sortby: 'date', //sort by "date" or "filename"fadeduration: 1000,thumbdimensions:[30,30],autorotate:{enabled:true, pause:4000}})

also have this php file

<?Header("content-type: application/x-javascript");function returnimages($dirname=".") {   $pattern="\.(jpg|jpeg|png|gif|bmp)$";   $files = array();   $curimage=0;   if($handle = opendir($dirname)) {	   while(false !== ($file = readdir($handle))){			   if(eregi($pattern, $file)){   $filedate=date ("M d, Y H:i:s", filemtime($file));				 echo "  [$curimage, \"$file\", \"$filedate\"],\n";				 $curimage++;			   }	   }	   echo "  [\"placeholder\"]\n";	   closedir($handle);   }   return($files);}echo "var fpslideshowvar={\n";echo " baseurl: \"http://" . $_SERVER["SERVER_NAME"] . dirname($_SERVER['PHP_SELF']) . "/\",\n";echo " images: [\n";returnimages();echo " ],\n";echo " desc: []\n";echo "}\n";?>

Edited by Craig Hopson
Link to comment
Share on other sites

One option would be to have an ajax request that periodically goes out to get the full list of images, and compare that list with what is already loaded to see if it changed, or another option would be to send an ajax request where PHP would determine if there are new images and only return information about those instead of the entire list. In that case you would need to have Javascript also send a time interval that specifies the last time it looked up the images so that PHP knows how new an image has to be in order to be considered "new" to Javascript. Changing the slideshow code to deal with new images is more complex, based on what is already there the easiest way might be to destroy and rebuild the entire slideshow.

Link to comment
Share on other sites

Ok how about after it has run the slide show before it starts again from the beginning it reruns the php script witch will find new picturesSo after all pictures have been shown it would just refresh the web page thus picking up new imagesSomething like

location.reload(true)

If this would work where would the line go???

Edited by Craig Hopson
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

×
×
  • Create New...