// -------------------------------------------------------------------
// Enhanced Dynamic Drive Thumbnail Viewer Script by Marek "Happy" Stastny (http://stastny.info)
// New features or changes by 2009-02-04:
// thumbnailviewer.js
// - Customizable header and footer navigation bars.
// - Show image filename, count of images in header/footer.
// - AutoMode: Enable thumbnailviewer on images matching specified pattern (thumbnail:img_thumb.jpg => full:img.jpg).
// - Browse thumbnailviewer enabled images (previous, next).
// - Enable "Move to the next" feature on image detail click.
// - Image preloading.
// thumbnailviewer.css
// - Added #thumbBox .imageinfo class, .filename class removed.
//
// Original Image Thumbnail Viewer Script- By Dynamic Drive, available at: http://www.dynamicdrive.com
// Update: July 7th, 2008- Fixed enlarged image not showing in IE sometimes
// -------------------------------------------------------------------
// Add this copyright notice to the section of your page:
/***********************************************
* Enhanced Dynamic Drive Thumbnail Viewer Script by Marek "Happy" Stastny (http://stastny.info)
*
* Original Thumbnail Viewer Script- © Dynamic Drive (www.dynamicdrive.com)
* This notice must stay intact for legal use.
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/
var thumbnailviewer={
enableTitle: true, //Should "title" attribute of link/image(depends on enableAutoMode switch!) be used as description?
enableAnimation: true, //Enable fading animation?
enableFileName:false, //Happy 2009-02-02: Show image filename in header or footer (depends on the "thumbFileName" div placement)
enableImageCount:true, //Happy 2009-02-04: Show image counter (current/total) in header or footer (depends on the "thumbFileName" div placement)
enableAutoMode:true, //Happy 2009-02-02: Turn on thumbnail autodetection (thumbnails matching specified thumbnailPattern) and enable thumbnailviewer on them.
thumbnailPattern: '_thumb', //Happy 2009-02-02: Thumbnail image detection pattern.
enableOnClickNext:true, //Happy 2009-02-02: Show next available image after image detail click or close detail ?
enablePreload:true, //Happy 2009-02-02: Preload all thumbnailer enabled images ?
defineHeader: '< PREVIOUS | NEXT > | CLOSE X
', //Happy 2009-02-02: Define HTML for header interface
defineFooter: '< PREVIOUS | NEXT > | CLOSE X
', //Happy 2009-02-02: Define HTML for footer interface
defineLoading: '
Loading Image...', //Define HTML for "loading" div
/////////////No need to edit beyond here/////////////////////////
scrollbarwidth: 16,
opacitystring: 'filter:progid:DXImageTransform.Microsoft.alpha(opacity=10); -moz-opacity: 0.1; opacity: 0.1',
targetlinks:[], //Array to hold links with rel="thumbnail"
imagepaths:[], //Happy 2009-02-02: Holds paths to images
currentimage:0, //Happy 2009-02-02: Index of displayed image (0 to prevent fail)
preloadimages:[], //Happy 2009-02-02: Holds all preloaded images
createthumbBox:function(){
//write out HTML for Image Thumbnail Viewer plus loading div
document.write(''+this.defineHeader+'
'+this.defineFooter+'
'+this.defineLoading+'
')
this.thumbBox=document.getElementById("thumbBox")
this.thumbImage=document.getElementById("thumbImage") //Reference div that holds the shown image
this.thumbLoading=document.getElementById("thumbLoading") //Reference "loading" div that will be shown while image is fetched
this.thumbImageInfo=document.getElementById("thumbImageInfo"); //Happy 2009-02-02: Reference to filename div
this.standardbody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body //create reference to common "body" across doctypes
},
centerDiv:function(divobj){ //Centers a div element on the page
var ie=document.all && !window.opera
var dom=document.getElementById
var scroll_top=(ie)? this.standardbody.scrollTop : window.pageYOffset
var scroll_left=(ie)? this.standardbody.scrollLeft : window.pageXOffset
var docwidth=(ie)? this.standardbody.clientWidth : window.innerWidth-this.scrollbarwidth
var docheight=(ie)? this.standardbody.clientHeight: window.innerHeight
var docheightcomplete=(this.standardbody.offsetHeight>this.standardbody.scrollHeight)? this.standardbody.offsetHeight : this.standardbody.scrollHeight //Full scroll height of document
var objwidth=divobj.offsetWidth //width of div element
var objheight=divobj.offsetHeight //height of div element
var topposition=(docheight>objheight)? scroll_top+docheight/2-objheight/2+"px" : scroll_top+10+"px" //Vertical position of div element: Either centered, or if element height larger than viewpoint height, 10px from top of viewpoint
divobj.style.left=docwidth/2-objwidth/2+"px" //Center div element horizontally
divobj.style.top=Math.floor(parseInt(topposition))+"px"
divobj.style.visibility="visible"
},
showthumbBox:function(){ //Show ThumbBox div
thumbnailviewer.thumbLoading.style.visibility="hidden" //Hide "loading" div
this.centerDiv(this.thumbBox)
if (this.enableAnimation){ //If fading animation enabled
this.currentopacity=0.1 //Starting opacity value
this.opacitytimer=setInterval("thumbnailviewer.opacityanimation()", 20)
}
},
loadimage:function(link){ //Load image function that gets attached to each link on the page with rel="thumbnail"
for (var i=0;i' //Construct HTML for shown image
if (this.enableTitle && link.getAttribute("title")) //Use title attr of the link as description?
imageHTML+='
'+link.getAttribute("title")
this.centerDiv(this.thumbLoading) //Center and display "loading" div while we set up the image to be shown
this.thumbImage.innerHTML=imageHTML //Populate thumbImage div with shown image's HTML (while still hidden)
//Happy 2009-02-04: Show image counter
if (this.enableImageCount && this.thumbImageInfo)
this.thumbImageInfo.innerHTML=(this.currentimage+1)+'/'+this.targetlinks.length;
//Happy 2009-02-02: Extract image filename and show it (if enabled)
if (this.enableFileName && this.thumbImageInfo){
if (filename.lastIndexOf("/")>=0)
filename=filename.substr(filename.lastIndexOf("/")+1);
this.thumbImageInfo.innerHTML+=((this.enableImageCount)?' ':'')+filename;
}
this.featureImage=this.thumbImage.getElementsByTagName("img")[0] //Reference shown image itself
if (this.featureImage.complete)
thumbnailviewer.showthumbBox()
else{
this.featureImage.onload=function(){ //When target image has completely loaded
thumbnailviewer.showthumbBox() //Display "thumbbox" div to the world!
}
}
if (document.all && !window.createPopup) //Target IE5.0 browsers only. Address IE image cache not firing onload bug: panoramio.com/blog/onload-event/
this.featureImage.src=imagesrc;
this.featureImage.onerror=function(){ //If an error has occurred while loading the image to show
thumbnailviewer.thumbLoading.style.visibility="hidden" //Hide "loading" div, game over
}
},
setimgopacity:function(value){ //Sets the opacity of "thumbimage" div per the passed in value setting (0 to 1 and in between)
var targetobject=this.featureImage
if (targetobject.filters && targetobject.filters[0]){ //IE syntax
if (typeof targetobject.filters[0].opacity=="number") //IE6
targetobject.filters[0].opacity=value*100
else //IE 5.5
targetobject.style.filter="alpha(opacity="+value*100+")"
}
else if (typeof targetobject.style.MozOpacity!="undefined") //Old Mozilla syntax
targetobject.style.MozOpacity=value
else if (typeof targetobject.style.opacity!="undefined") //Standard opacity syntax
targetobject.style.opacity=value
else //Non of the above, stop opacity animation
this.stopanimation()
},
opacityanimation:function(){ //Gradually increase opacity function
this.setimgopacity(this.currentopacity)
this.currentopacity+=0.1
if (this.currentopacity>1)
this.stopanimation()
},
stopanimation:function(){
if (typeof this.opacitytimer!="undefined")
clearInterval(this.opacitytimer)
},
closeit:function(){ //Close "thumbbox" div function
this.stopanimation()
this.thumbBox.style.visibility="hidden"
this.thumbImage.innerHTML=""
this.thumbBox.style.left="-2000px"
this.thumbBox.style.top="-2000px"
},
cleanup:function(){ //Clean up routine on page unload
this.thumbLoading=null
if (this.featureImage) this.featureImage.onload=null
this.featureImage=null
this.thumbImage=null
for (var i=0; i=0)||(pagelinks[i].getAttribute("rel") && pagelinks[i].getAttribute("rel")=="thumbnail")){ //Happy 2009-02-02: Automode enabled or standard mode
if (this.enableAutoMode)
pagelinks[i].style.cursor="pointer"; //Happy 2009-02-02: Change cursor to hand over the image
pagelinks[i].onclick=function(){
thumbnailviewer.stopanimation() //Stop any currently running fade animation on "thumbbox" div before proceeding
thumbnailviewer.loadimage(this) //Load image
return false
}
this.targetlinks[this.targetlinks.length]=pagelinks[i] //store reference to target link
var imagesrc=(this.enableAutoMode)?pagelinks[i].getAttribute("src").replace(this.thumbnailPattern,""):pagelinks[i].getAttribute("href"); //Happy 2009-02-02
this.imagepaths[this.imagepaths.length]=imagesrc; //Happy 2009-02-02: Cache path to image
if (this.enablePreload){ //Happy 2009-02-02: Preload images
var preimage=new Image();
preimage.src=imagesrc;
this.preloadimages[this.preloadimages.length]=preimage;
}
} //end if statement
} //END FOR LOOP
//Reposition "thumbbox" div when page is resized
this.dotask(window, function(){if (thumbnailviewer.thumbBox.style.visibility=="visible") thumbnailviewer.centerDiv(thumbnailviewer.thumbBox)}, "resize")
}, //END init() function
//Happy 2009-02-02: Move to next available image
next:function(){
var i=this.currentimage;
this.loadimage(this.targetlinks[((i+1)>(this.targetlinks.length-1))?0:i+1]);
return false;
},
//Happy 2009-02-02: Move to previous available image
previous:function(){
var i=this.currentimage;
this.loadimage(this.targetlinks[((i-1)<0)?(this.targetlinks.length-1):i-1]);
return false;
}
}
thumbnailviewer.createthumbBox() //Output HTML for the image thumbnail viewer
thumbnailviewer.dotask(window, function(){thumbnailviewer.init()}, "load") //Initialize script on page load
thumbnailviewer.dotask(window, function(){thumbnailviewer.cleanup()}, "unload")