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//____________________________________________________________________
// A set of javascript functions to display a set of selected plots
// as a contineous show of slides. A number of slide show actions include
// - Start, Stop, FirstSlide, LastSlide, Previous, Next
// - Set a specific Slide
//
//____________________________________________________________________
var SlideShow = {};
//____________________________________________________________________
// Static variables
//
SlideShow.DEBUG = true;
SlideShow.slideImageList = new Array();
SlideShow.slideTitleList = new Array();
SlideShow.slideShowSpeed = 1000; // miliseconds
SlideShow.index = 0;
SlideShow.nSlides = 0;
SlideShow.MAX_SLIDES = 20;
SlideShow.timerID = null;
//____________________________________________________________________
SlideShow.ChangeUpdateInterval = function(){
try{
var theRefresh = document.getElementById("update_slideshow");
if (theRefresh == null) {
SlideShow.slideShowSpeed = 10000;
} else {
SlideShow.slideShowSpeed = theRefresh.options[theRefresh.selectedIndex].value;
}
}catch(e){
alert("[SlideShow::ChangeUpdateInterval] " + e.message);
}
}
//____________________________________________________________________
// Start the slide show with full list of images
//
SlideShow.StartSlideShow = function()
{
try{
SlideShow.ChangeUpdateInterval();
SlideShow.setSlide(SlideShow.index);
SlideShow.index = (SlideShow.index + 1) % SlideShow.nSlides;
SlideShow.timerID = setTimeout('SlideShow.StartSlideShow()', SlideShow.slideShowSpeed);
}catch(e){
alert("[SlideShow::StartSlideShow] " + e.message);
}
}
//____________________________________________________________________
// Stop the slide show
//
SlideShow.StopSlideShow = function()
{
try{
if (SlideShow.timerID != null) {
clearTimeout(SlideShow.timerID);
}
}catch(e){
alert("[SlideShow::StopSlideShow] " + e.message);
}
}
//____________________________________________________________________
// Show first slide
//
SlideShow.ShowFirst = function()
{
try{
SlideShow.setSlide(0);
}catch(e){
alert("[SlideShow::ShowFirst] " + e.message);
}
}
//____________________________________________________________________
// Show last slide
//
SlideShow.ShowLast = function()
{
try{
SlideShow.setSlide(SlideShow.nSlides-1);
}catch(e){
alert("[SlideShow::setSlide] " + e.message);
}
}
//____________________________________________________________________
// Show previous slide
//
SlideShow.ShowPrev = function()
{
try{
SlideShow.index = (SlideShow.index-1) % nSlides;
if (SlideShow.index < 0) SlideShow.index = SlideShow.nSlides - 1;
SlideShow.setSlide(SlideShow.index);
}catch(e){
alert("[SlideShow::setSlide] " + e.message);
}
}
//____________________________________________________________________
// Show next slide
//
SlideShow.ShowNext = function()
{
try{
SlideShow.index = (SlideShow.index + 1) % nSlides;
SlideShow.setSlide(SlideShow.index);
}catch(e){
alert("[SlideShow::setSlide] " + e.message);
}
}
//____________________________________________________________________
// Set a specific slide
//
SlideShow.setSlide = function(index)
{
try{
if (SlideShow.nSlides == 0) {
if (SlideShow.DEBUG) alert("[SlideShow::setSlide] " + "[SlideShow::setSlide] Empty Image List!");
return false;
}
var urlImageList = SlideShow.slideImageList[SlideShow.index];
var urlTitleList = SlideShow.slideTitleList[SlideShow.index];
var getTitles = new Ajax.Request(urlTitleList, // Load titles first, because they are
{ // used by the IMGC.processImageList
method: 'get', // which fires later on
parameters: '',
onComplete: IMGC.processTitlesList // <-- call back function
});
var getFiles = new Ajax.Request(urlImageList,
{
method: 'get',
parameters: '',
onComplete: IMGC.processImageList // <-- call back function
});
}catch(e){
alert("[SlideShow::setSlide] " + e.message);
}
}
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