X-Git-Url: https://scm.cri.mines-paristech.fr/git/Portfolio.git/blobdiff_plain/30ba3a527054cc5c4c188b1049ef68e8ac0c69dd..fd69eaaf44e7c071f179242936c737509eb667ef:/skins/portfolio_upload.js?ds=inline diff --git a/skins/portfolio_upload.js b/skins/portfolio_upload.js index 48bdf7f..87a70e4 100644 --- a/skins/portfolio_upload.js +++ b/skins/portfolio_upload.js @@ -1,20 +1,19 @@ // © 2013 Benoît Pin MINES ParisTech var DDImageUploader; -var MAX_PREVIEW = 2; // à virer (function(){ // nombre maximun d'image chargées en local var MAX_PREVIEW = 2; var isThumbnail = /.*\/getThumbnail$/; -DDImageUploader = function(dropbox, uploadUrl) { +DDImageUploader = function(dropbox, uploadUrl, options) { DDFileUploaderBase.apply(this, [dropbox, uploadUrl]); this.existingSlides = this.indexExistingSlides(); - this.slideSize = 222; - this.progressBarMaxSize = 200; // pixels - this.thumbnailSize = 180; + this.slideSize = options.slideSize || 222; // pixels + this.progressBarMaxSize = this.slideSize - 22 || 200; + this.thumbnailSize = options.thumbnailSize || 180; this.previewQueue = []; this._previewQueueRunning = false; this.previewsLoaded = 0; @@ -44,6 +43,56 @@ DDImageUploader.prototype.handleFiles = function(files) { } }; +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); +}; // Methods about preview queue. DDImageUploader.prototype.previewQueuePush = function(slide) { @@ -69,6 +118,70 @@ DDImageUploader.prototype.previewQueueLoadNext = function() { } }; +// User interface +DDImageUploader.prototype.createSlide = function(file) { + var slide = document.createElement('span'); + slide.file = file; + + var a = document.createElement('a'); + a.href = '#'; + a.className = 'slide'; + + var img = document.createElement('img'); + img.className = 'hidden'; + var size = this.thumbnailSize; + var self = this; + img.onload = function(evt) { + if (img.width > img.height) { // landscape + img.height = Math.round(size * img.height / img.width); + img.width = size; + } + else { + img.width = Math.round(size * img.width / img.height); + img.height = size; + } + img.style.marginLeft = Math.floor((self.slideSize - img.width) / 2) + 'px'; + img.style.marginTop = Math.floor((self.slideSize - img.height) / 2) + 'px'; + img.style.opacity = 0.2; + img.className = undefined; + }; + a.appendChild(img); + slide.img = img; + + var label = document.createElement('span'); + slide.label = label; + label.className = 'label'; + label.innerHTML = file.name; + var progressBar = document.createElement('span'); + progressBar.className = 'upload-progress'; + slide.progressBar = progressBar; + + slide.appendChild(a); + slide.appendChild(progressBar); + slide.appendChild(label); + this.dropbox.appendChild(slide); + + return slide; +}; + +DDImageUploader.prototype.updateProgressBar = function(progress) { + // 0 <= progress <= 1 + var size = this.progressBarMaxSize * progress; + size = Math.round(size); + this.progressBar.style.width = size + 'px'; +}; + +DDImageUploader.prototype.previewUploadedImage = function(slide) { + var reader = new FileReader(); + var size = this.thumbnailSize; + var self = this; + + reader.onload = function(evt) { + slide.img.src = evt.target.result; + setTimeout(function(){self.previewQueueLoadNext();}, 500); + }; + reader.readAsDataURL(slide.file); +}; }()); \ No newline at end of file