Refactoring : déplacement des méthodes spécifiques à l'affichage de l'interface utili...

[Portfolio.git] / skins / fileupload.js

diff --git a/skins/fileupload.js b/skins/fileupload.js
index 3f5f8c5..a98dda5 100644 (file)
--- a/skins/fileupload.js
+++ b/skins/fileupload.js
@@ -1,21 +1,11 @@
 // © 2013 Benoît Pin MINES ParisTech
-var DDFileUploader;
+var DDFileUploaderBase;
 
 (function(){
-// nombre maximun d'image chargées en local
-var MAX_PREVIEW = 2;
-var isThumbnail = /.*\/getThumbnail$/;
 
-DDFileUploader = function(dropbox, uploadUrl) {
+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;
@@ -24,25 +14,13 @@ DDFileUploader = function(dropbox, uploadUrl) {
        addListener(dropbox, 'drop', function(evt){self.drop(evt);});
 };
 
-DDFileUploader.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
-DDFileUploader.prototype.dragenter = function(evt) {
+DDFileUploaderBase.prototype.dragenter = function(evt) {
        disableDefault(evt);
        disablePropagation(evt);
 };
 
-DDFileUploader.prototype.dragover = function(evt) {
+DDFileUploaderBase.prototype.dragover = function(evt) {
        disableDefault(evt);
        disablePropagation(evt);
        evt = getEventObject(evt);
@@ -50,7 +28,7 @@ DDFileUploader.prototype.dragover = function(evt) {
        dt.dropEffect = 'copy';
 };
 
-DDFileUploader.prototype.drop = function(evt) {
+DDFileUploaderBase.prototype.drop = function(evt) {
        disableDefault(evt);
        disablePropagation(evt);
        getEventObject(evt);
@@ -60,17 +38,11 @@ DDFileUploader.prototype.drop = function(evt) {
 };
 
 // Methods about upload
-DDFileUploader.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);
-       }
+DDFileUploaderBase.prototype.handleFiles = function(files) {
+       // To be implemented by descendant.
 };
 
-DDFileUploader.prototype.upload = function(slide) {
+DDFileUploaderBase.prototype.upload = function(slide) {
        var reader = new FileReader();
        var req = new XMLHttpRequest();
        var file = slide.file;
@@ -100,7 +72,7 @@ DDFileUploader.prototype.upload = function(slide) {
        reader.readAsBinaryString(file);
 };
 
-DDFileUploader.prototype.uploadCompleteHandler = function(req) {
+DDFileUploaderBase.prototype.uploadCompleteHandler = function(req) {
        var slide = this.uploadedSlide;
        this.uploadedSlide.removeChild(slide.label);
     this.uploadedSlide.removeChild(slide.progressBar);
@@ -132,7 +104,7 @@ DDFileUploader.prototype.uploadCompleteHandler = function(req) {
        this.uploadQueueLoadNext();
 };
 
-DDFileUploader.prototype.progressHandler = function(evt) {
+DDFileUploaderBase.prototype.progressHandler = function(evt) {
        if (evt.lengthComputable) {
                var progress = evt.loaded / evt.total;
                this.updateProgressBar(progress);
@@ -141,45 +113,20 @@ DDFileUploader.prototype.progressHandler = function(evt) {
        }
 };
 
-// Method about queues
-
-DDFileUploader.prototype.previewQueuePush = function(slide) {
-       this.previewQueue.push(slide);
-       if (!this._previewQueueRunning) {
-               this.startPreviewQueue();
-       }
-};
-
-DDFileUploader.prototype.startPreviewQueue = function() {
-       this._previewQueueRunning = true;
-       this.previewQueueLoadNext();
-};
-
-DDFileUploader.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;
-       }
-};
-
-DDFileUploader.prototype.uploadQueuePush = function(slide) {
+// Methods about queue
+DDFileUploaderBase.prototype.uploadQueuePush = function(slide) {
        this.uploadQueue.push(slide);
        if (!this._uploadQueueRunning) {
                this.startUploadQueue();
        }
 };
 
-DDFileUploader.prototype.startUploadQueue = function() {
+DDFileUploaderBase.prototype.startUploadQueue = function() {
        this._uploadQueueRunning = true;
        this.uploadQueueLoadNext();
 };
 
-
-DDFileUploader.prototype.uploadQueueLoadNext = function() {
+DDFileUploaderBase.prototype.uploadQueueLoadNext = function() {
        var slide = this.uploadQueue.shift();
        if (slide) {
                this.upload(slide);
@@ -189,71 +136,4 @@ DDFileUploader.prototype.uploadQueueLoadNext = function() {
        }
 };
 
-
-// User interface
-DDFileUploader.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;
-};
-
-DDFileUploader.prototype.updateProgressBar = function(progress) {
-       // 0 <= progress <= 1
-       var size = this.progressBarMaxSize * progress;
-       size = Math.round(size);
-       this.progressBar.style.width = size + 'px';
-};
-
-DDFileUploader.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);
-};
-
 }());