+++ /dev/null
-// © 2013 Benoît Pin MINES ParisTech
-var DDFileUploaderBase;
-
-(function(){
-
-DDFileUploaderBase = function(dropbox, uploadUrl) {
- this.dropbox = dropbox;
- this.uploadUrl = uploadUrl;
- this.uploadQueue = [];
- this._uploadQueueRunning = false;
- var self = this;
- addListener(dropbox, 'dragenter', function(evt){self.dragenter(evt);});
- addListener(dropbox, 'dragover', function(evt){self.dragover(evt);});
- addListener(dropbox, 'drop', function(evt){self.drop(evt);});
-};
-
-// Drag and drop
-DDFileUploaderBase.prototype.dragenter = function(evt) {
- disableDefault(evt);
- disablePropagation(evt);
-};
-
-DDFileUploaderBase.prototype.dragover = function(evt) {
- disableDefault(evt);
- disablePropagation(evt);
- evt = getEventObject(evt);
- var dt = evt.dataTransfer;
- dt.dropEffect = 'copy';
-};
-
-DDFileUploaderBase.prototype.drop = function(evt) {
- disableDefault(evt);
- disablePropagation(evt);
- getEventObject(evt);
- var dt = evt.dataTransfer;
- dt.dropEffect = 'copy';
- this.handleFiles(dt.files);
-};
-
-// Methods about upload
-DDFileUploaderBase.prototype.handleFiles = function(files) {
- // To be implemented by descendant.
-};
-
-
-
-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 = item.file;
-
- var self = this;
-
- addListener(req.upload, 'progress', function(evt){self.progressHandler(evt);});
- addListener(req, 'readystatechange',
- function(evt) {
- if (req.readyState === 4) {
- self.uploadCompleteHandler(req);
- }
- });
-
- req.open("PUT", this.uploadUrl);
- req.setRequestHeader("Content-Type", file.type);
- req.setRequestHeader("X-File-Name", file.name);
- addListener(reader, 'load',
- function(evt){
- try {
- req.sendAsBinary(evt.target.result);
- }
- catch(e){}
- });
- reader.readAsBinaryString(file);
-};
-
-
-DDFileUploaderBase.prototype.uploadCompleteHandlerCB = function(req) {
- // To be implemented by descendant.
-};
-
-DDFileUploaderBase.prototype.uploadCompleteHandler = function(req) {
- this.uploadCompleteHandlerCB(req);
- this.uploadQueueLoadNext();
-};
-
-DDFileUploaderBase.prototype.progressHandlerCB = function(progress) {
- // To be implemented by descendant.
- // 0 <= progress <= 1
-};
-
-DDFileUploaderBase.prototype.progressHandler = function(evt) {
- if (evt.lengthComputable) {
- var progress = evt.loaded / evt.total;
- this.progressHandlerCB(progress);
- }
-};
-
-// Methods about queue
-DDFileUploaderBase.prototype.uploadQueuePush = function(item) {
- this.uploadQueue.push(item);
- if (!this._uploadQueueRunning) {
- this.startUploadQueue();
- }
-};
-
-DDFileUploaderBase.prototype.startUploadQueue = function() {
- this._uploadQueueRunning = true;
- this.uploadQueueLoadNext();
-};
-
-DDFileUploaderBase.prototype.uploadQueueLoadNext = function() {
- var item = this.uploadQueue.shift();
- if (item) {
- this.upload(item);
- }
- else {
- this._uploadQueueRunning = false;
- }
-};
-
-}());