From 5a118f1db16afd22cb3c066f07cc6333fa0f96b6 Mon Sep 17 00:00:00 2001
From: Andreas Unterkircher <unki@netshadow.at>
Date: Sat, 29 Mar 2008 11:39:53 +0100
Subject: issue112, enhanced preload functions for photo-index

Signed-off-by: Andreas Unterkircher <unki@netshadow.at>
---
 phpfspot.js | 29 +++++++++++++++++++----------
 1 file changed, 19 insertions(+), 10 deletions(-)

(limited to 'phpfspot.js')

diff --git a/phpfspot.js b/phpfspot.js
index 89eacba..f9f9703 100644
--- a/phpfspot.js
+++ b/phpfspot.js
@@ -427,23 +427,32 @@ function WSR_getElementsByClassName(oElm, strTagName, oClassNames){
 }
 
 
-function preloadPhotos(lbImg) {
+function preloadPhotos(image_url) {
 
-   var d=document;
-   if(d.images)
-      if(!d.photos)
-         d.photos=new Array();
-
-   var i, j=d.photos.length;
+   var i;
+   var timeout = 1000;
+   var waiting = 100;
+   var counting;
 
    lbImg=WSR_getElementsByClassName(document,"img","thumb");
    for(i=0;i<lbImg.length;i++){
-      d.photos[j]=new Image;
-      d.photos[j].src=lbImg[i].src;
-      j++;
+      lbImg[i].src=image_url[i];
+      // to not bomb the server with requests, give the page some time
+      // to load the images one by one. if a image exceeds the timeout,
+      // the next image will be loaded.
+      if(lbImg[i].complete != undefined && lbImg[i].complete != true) {
+         counting = 0;
+         while(lbImg[i].complete != true && counting < timeout) {
+            window.setTimeout("noop()", waiting);
+            counting+=waiting;
+         }
+      }
    }
 }
 
+/* a function that does nothing */
+function noop() {}
+
 function startSlideShow()
 {
    if(!sliding) {
-- 
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