+DDImageUploader.prototype.beforeUpload = function(slide) {
+ this.uploadedSlide = slide;
+ this.previewImg = slide.img;
+ this.progressBar = slide.progressBar;
+ this.scrollToSlide(slide);
+};
+
+DDImageUploader.prototype.scrollToSlide = function(slide) {
+ var slideHeight = slide.offsetHeight;
+ var slideOffsetTop = slide.getElementsByClassName('slide')[0].offsetTop;
+ var to = slideOffsetTop - getWindowHeight() + slideHeight;
+ window.scroll(0, to);
+};
+
+DDImageUploader.prototype.uploadCompleteHandlerCB = function(req) {
+ var slide = this.uploadedSlide;
+ this.uploadedSlide.removeChild(slide.label);
+ this.uploadedSlide.removeChild(slide.progressBar);
+ var fragment = getCopyOfNode(req.responseXML.documentElement.firstChild);
+ var img = fragment.getElementsByTagName('img')[0];
+ if (req.status === 200) {
+ // update
+ var existing = this.existingSlides[img.src];
+ if (existing) {
+ existing.src = existing.src + '?' + Math.random().toString();
+ }
+ slide.img.src = '';
+ slide.img.parentNode.removeChild(slide.img);
+ slide.img = undefined;
+ slide.parentNode.removeChild(slide);
+ }
+ else if(req.status === 201) {
+ // creation
+ img.onload = function(evt) {
+ // accelerate GC before replacing
+ slide.img.src = '';
+ slide.img.parentNode.removeChild(slide.img);
+ slide.img = undefined;
+ slide.parentNode.replaceChild(fragment, slide);
+ };
+ }
+ this.previewsLoaded--;
+ this.previewQueueLoadNext();
+};
+
+DDImageUploader.prototype.progressHandlerCB = function(progress) {
+ this.updateProgressBar(progress);
+ var currentOpacity = this.previewImg.style.opacity;
+ this.previewImg.style.opacity = Math.max(currentOpacity, progress);
+};