X-Git-Url: https://scm.cri.mines-paristech.fr/git/Plinn.git/blobdiff_plain/7e1385a802cc364f2d36bf32715a589ecc19d215..c00b819ea88b5055e4fd8bc94d7ee6ea7d02ad49:/skins/fileupload.js?ds=inline diff --git a/skins/fileupload.js b/skins/fileupload.js index 4061a0c..0aebb3e 100644 --- a/skins/fileupload.js +++ b/skins/fileupload.js @@ -2,20 +2,10 @@ var DDFileUploaderBase; (function(){ -// nombre maximun d'image chargées en local -var MAX_PREVIEW = 2; -var isThumbnail = /.*\/getThumbnail$/; DDFileUploaderBase = function(dropbox, uploadUrl) { this.dropbox = dropbox; - this.existingSlides = this.indexExistingSlides(); this.uploadUrl = uploadUrl; - this.slideSize = 222; - this.progressBarMaxSize = 200; // pixels - this.thumbnailSize = 180; - this.previewQueue = []; - this._previewQueueRunning = false; - this.previewsLoaded = 0; this.uploadQueue = []; this._uploadQueueRunning = false; var self = this; @@ -24,18 +14,6 @@ DDFileUploaderBase = function(dropbox, uploadUrl) { addListener(dropbox, 'drop', function(evt){self.drop(evt);}); }; -DDFileUploaderBase.prototype.indexExistingSlides = function() { - var images = this.dropbox.getElementsByTagName('img'); - var i; - var index = []; - for (i=0 ; i < images.length ; i++) { - if (isThumbnail.test(images[i].src)) { - index[images[i].src] = images[i]; - } - } - return index; -}; - // Drag and drop DDFileUploaderBase.prototype.dragenter = function(evt) { disableDefault(evt); @@ -61,22 +39,23 @@ DDFileUploaderBase.prototype.drop = function(evt) { // Methods about upload DDFileUploaderBase.prototype.handleFiles = function(files) { - var file, i, slide; - for (i = 0; i < files.length; i++) { - file = files[i]; - slide = this.createSlide(file); - this.previewQueuePush(slide); - this.uploadQueuePush(slide); - } + // To be implemented by descendant. }; -DDFileUploaderBase.prototype.upload = function(slide) { + + +DDFileUploaderBase.prototype.beforeUpload = function(item) { + // To be implemented by decendant. +}; + + +DDFileUploaderBase.prototype.upload = function(item) { + // item.file must be the file to be uploaded + this.beforeUpload(item); var reader = new FileReader(); var req = new XMLHttpRequest(); - var file = slide.file; - this.uploadedSlide = slide; - this.previewImg = slide.img; - this.progressBar = slide.progressBar; + var file = item.file; + var self = this; addListener(req.upload, 'progress', function(evt){self.progressHandler(evt);}); @@ -141,33 +120,9 @@ DDFileUploaderBase.prototype.progressHandler = function(evt) { } }; -// Method about queues - -DDFileUploaderBase.prototype.previewQueuePush = function(slide) { - this.previewQueue.push(slide); - if (!this._previewQueueRunning) { - this.startPreviewQueue(); - } -}; - -DDFileUploaderBase.prototype.startPreviewQueue = function() { - this._previewQueueRunning = true; - this.previewQueueLoadNext(); -}; - -DDFileUploaderBase.prototype.previewQueueLoadNext = function() { - if (this.previewQueue.length && this.previewsLoaded < MAX_PREVIEW) { - var slide = this.previewQueue.shift(); - this.previewUploadedImage(slide); - this.previewsLoaded++; - } - else { - this._previewQueueRunning = false; - } -}; - -DDFileUploaderBase.prototype.uploadQueuePush = function(slide) { - this.uploadQueue.push(slide); +// Methods about queue +DDFileUploaderBase.prototype.uploadQueuePush = function(item) { + this.uploadQueue.push(item); if (!this._uploadQueueRunning) { this.startUploadQueue(); } @@ -178,82 +133,14 @@ DDFileUploaderBase.prototype.startUploadQueue = function() { this.uploadQueueLoadNext(); }; - DDFileUploaderBase.prototype.uploadQueueLoadNext = function() { - var slide = this.uploadQueue.shift(); - if (slide) { - this.upload(slide); + var item = this.uploadQueue.shift(); + if (item) { + this.upload(item); } else { this._uploadQueueRunning = false; } }; - -// User interface -DDFileUploaderBase.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; -}; - -DDFileUploaderBase.prototype.updateProgressBar = function(progress) { - // 0 <= progress <= 1 - var size = this.progressBarMaxSize * progress; - size = Math.round(size); - this.progressBar.style.width = size + 'px'; -}; - -DDFileUploaderBase.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); -}; - }());