--- /dev/null
+/**
+ * http://github.com/valums/file-uploader
+ *
+ * Multiple file upload component with progress-bar, drag-and-drop.
+ * © 2010 Andrew Valums ( andrew(at)valums.com )
+ *
+ * Licensed under GNU GPL 2 or later, see license.txt.
+ */
+
+//
+// Helper functions
+//
+
+var qq = qq || {};
+
+/**
+ * Adds all missing properties from second obj to first obj
+ */
+qq.extend = function(first, second){
+ for (var prop in second){
+ first[prop] = second[prop];
+ }
+};
+
+/**
+ * Searches for a given element in the array, returns -1 if it is not present.
+ * @param {Number} [from] The index at which to begin the search
+ */
+qq.indexOf = function(arr, elt, from){
+ if (arr.indexOf) return arr.indexOf(elt, from);
+
+ from = from || 0;
+ var len = arr.length;
+
+ if (from < 0) from += len;
+
+ for (; from < len; from++){
+ if (from in arr && arr[from] === elt){
+ return from;
+ }
+ }
+ return -1;
+};
+
+qq.getUniqueId = (function(){
+ var id = 0;
+ return function(){ return id++; };
+})();
+
+//
+// Events
+
+qq.attach = function(element, type, fn){
+ if (element.addEventListener){
+ element.addEventListener(type, fn, false);
+ } else if (element.attachEvent){
+ element.attachEvent('on' + type, fn);
+ }
+};
+qq.detach = function(element, type, fn){
+ if (element.removeEventListener){
+ element.removeEventListener(type, fn, false);
+ } else if (element.attachEvent){
+ element.detachEvent('on' + type, fn);
+ }
+};
+
+qq.preventDefault = function(e){
+ if (e.preventDefault){
+ e.preventDefault();
+ } else{
+ e.returnValue = false;
+ }
+};
+
+//
+// Node manipulations
+
+/**
+ * Insert node a before node b.
+ */
+qq.insertBefore = function(a, b){
+ b.parentNode.insertBefore(a, b);
+};
+qq.remove = function(element){
+ element.parentNode.removeChild(element);
+};
+
+qq.contains = function(parent, descendant){
+ // compareposition returns false in this case
+ if (parent == descendant) return true;
+
+ if (parent.contains){
+ return parent.contains(descendant);
+ } else {
+ return !!(descendant.compareDocumentPosition(parent) & 8);
+ }
+};
+
+/**
+ * Creates and returns element from html string
+ * Uses innerHTML to create an element
+ */
+qq.toElement = (function(){
+ var div = document.createElement('div');
+ return function(html){
+ div.innerHTML = html;
+ var element = div.firstChild;
+ div.removeChild(element);
+ return element;
+ };
+})();
+
+//
+// Node properties and attributes
+
+/**
+ * Sets styles for an element.
+ * Fixes opacity in IE6-8.
+ */
+qq.css = function(element, styles){
+ if (styles.opacity != null){
+ if (typeof element.style.opacity != 'string' && typeof(element.filters) != 'undefined'){
+ styles.filter = 'alpha(opacity=' + Math.round(100 * styles.opacity) + ')';
+ }
+ }
+ qq.extend(element.style, styles);
+};
+qq.hasClass = function(element, name){
+ var re = new RegExp('(^| )' + name + '( |$)');
+ return re.test(element.className);
+};
+qq.addClass = function(element, name){
+ if (!qq.hasClass(element, name)){
+ element.className += ' ' + name;
+ }
+};
+qq.removeClass = function(element, name){
+ var re = new RegExp('(^| )' + name + '( |$)');
+ element.className = element.className.replace(re, ' ').replace(/^\s+|\s+$/g, "");
+};
+qq.setText = function(element, text){
+ element.innerText = text;
+ element.textContent = text;
+};
+
+//
+// Selecting elements
+
+qq.children = function(element){
+ var children = [],
+ child = element.firstChild;
+
+ while (child){
+ if (child.nodeType == 1){
+ children.push(child);
+ }
+ child = child.nextSibling;
+ }
+
+ return children;
+};
+
+qq.getByClass = function(element, className){
+ if (element.querySelectorAll){
+ return element.querySelectorAll('.' + className);
+ }
+
+ var result = [];
+ var candidates = element.getElementsByTagName("*");
+ var len = candidates.length;
+
+ for (var i = 0; i < len; i++){
+ if (qq.hasClass(candidates[i], className)){
+ result.push(candidates[i]);
+ }
+ }
+ return result;
+};
+
+/**
+ * obj2url() takes a json-object as argument and generates
+ * a querystring. pretty much like jQuery.param()
+ *
+ * how to use:
+ *
+ * `qq.obj2url({a:'b',c:'d'},'http://any.url/upload?otherParam=value');`
+ *
+ * will result in:
+ *
+ * `http://any.url/upload?otherParam=value&a=b&c=d`
+ *
+ * @param Object JSON-Object
+ * @param String current querystring-part
+ * @return String encoded querystring
+ */
+qq.obj2url = function(obj, temp, prefixDone){
+ var uristrings = [],
+ prefix = '&',
+ add = function(nextObj, i){
+ var nextTemp = temp
+ ? (/\[\]$/.test(temp)) // prevent double-encoding
+ ? temp
+ : temp+'['+i+']'
+ : i;
+ if ((nextTemp != 'undefined') && (i != 'undefined')) {
+ uristrings.push(
+ (typeof nextObj === 'object')
+ ? qq.obj2url(nextObj, nextTemp, true)
+ : (Object.prototype.toString.call(nextObj) === '[object Function]')
+ ? encodeURIComponent(nextTemp) + '=' + encodeURIComponent(nextObj())
+ : encodeURIComponent(nextTemp) + '=' + encodeURIComponent(nextObj)
+ );
+ }
+ };
+
+ if (!prefixDone && temp) {
+ prefix = (/\?/.test(temp)) ? (/\?$/.test(temp)) ? '' : '&' : '?';
+ uristrings.push(temp);
+ uristrings.push(qq.obj2url(obj));
+ } else if ((Object.prototype.toString.call(obj) === '[object Array]') && (typeof obj != 'undefined') ) {
+ // we wont use a for-in-loop on an array (performance)
+ for (var i = 0, len = obj.length; i < len; ++i){
+ add(obj[i], i);
+ }
+ } else if ((typeof obj != 'undefined') && (obj !== null) && (typeof obj === "object")){
+ // for anything else but a scalar, we will use for-in-loop
+ for (var i in obj){
+ add(obj[i], i);
+ }
+ } else {
+ uristrings.push(encodeURIComponent(temp) + '=' + encodeURIComponent(obj));
+ }
+
+ return uristrings.join(prefix)
+ .replace(/^&/, '')
+ .replace(/%20/g, '+');
+};
+
+//
+//
+// Uploader Classes
+//
+//
+
+var qq = qq || {};
+
+/**
+ * Creates upload button, validates upload, but doesn't create file list or dd.
+ */
+qq.FileUploaderBasic = function(o){
+ this._options = {
+ // set to true to see the server response
+ debug: false,
+ action: '/server/upload',
+ params: {},
+ button: null,
+ multiple: true,
+ maxConnections: 3,
+ // validation
+ allowedExtensions: [],
+ sizeLimit: 0,
+ minSizeLimit: 0,
+ // events
+ // return false to cancel submit
+ onSubmit: function(id, fileName){},
+ onProgress: function(id, fileName, loaded, total){},
+ onComplete: function(id, fileName, responseJSON){},
+ onCancel: function(id, fileName){},
+ // messages
+ messages: {
+ typeError: "{file} has invalid extension. Only {extensions} are allowed.",
+ sizeError: "{file} is too large, maximum file size is {sizeLimit}.",
+ minSizeError: "{file} is too small, minimum file size is {minSizeLimit}.",
+ emptyError: "{file} is empty, please select files again without it.",
+ onLeave: "The files are being uploaded, if you leave now the upload will be cancelled."
+ },
+ showMessage: function(message){
+ alert(message);
+ }
+ };
+ qq.extend(this._options, o);
+
+ // number of files being uploaded
+ this._filesInProgress = 0;
+ this._handler = this._createUploadHandler();
+
+ if (this._options.button){
+ this._button = this._createUploadButton(this._options.button);
+ }
+
+ this._preventLeaveInProgress();
+};
+
+qq.FileUploaderBasic.prototype = {
+ setParams: function(params){
+ this._options.params = params;
+ },
+ getInProgress: function(){
+ return this._filesInProgress;
+ },
+ _createUploadButton: function(element){
+ var self = this;
+
+ return new qq.UploadButton({
+ element: element,
+ multiple: this._options.multiple && qq.UploadHandlerXhr.isSupported(),
+ onChange: function(input){
+ self._onInputChange(input);
+ }
+ });
+ },
+ _createUploadHandler: function(){
+ var self = this,
+ handlerClass;
+
+ if(qq.UploadHandlerXhr.isSupported()){
+ handlerClass = 'UploadHandlerXhr';
+ } else {
+ handlerClass = 'UploadHandlerForm';
+ }
+
+ var handler = new qq[handlerClass]({
+ debug: this._options.debug,
+ action: this._options.action,
+ maxConnections: this._options.maxConnections,
+ onProgress: function(id, fileName, loaded, total){
+ self._onProgress(id, fileName, loaded, total);
+ self._options.onProgress(id, fileName, loaded, total);
+ },
+ onComplete: function(id, fileName, result){
+ self._onComplete(id, fileName, result);
+ self._options.onComplete(id, fileName, result);
+ },
+ onCancel: function(id, fileName){
+ self._onCancel(id, fileName);
+ self._options.onCancel(id, fileName);
+ }
+ });
+
+ return handler;
+ },
+ _preventLeaveInProgress: function(){
+ var self = this;
+
+ qq.attach(window, 'beforeunload', function(e){
+ if (!self._filesInProgress){return;}
+
+ var e = e || window.event;
+ // for ie, ff
+ e.returnValue = self._options.messages.onLeave;
+ // for webkit
+ return self._options.messages.onLeave;
+ });
+ },
+ _onSubmit: function(id, fileName){
+ this._filesInProgress++;
+ },
+ _onProgress: function(id, fileName, loaded, total){
+ },
+ _onComplete: function(id, fileName, result){
+ this._filesInProgress--;
+ if (result.error){
+ this._options.showMessage(result.error);
+ }
+ },
+ _onCancel: function(id, fileName){
+ this._filesInProgress--;
+ },
+ _onInputChange: function(input){
+ if (this._handler instanceof qq.UploadHandlerXhr){
+ this._uploadFileList(input.files);
+ } else {
+ if (this._validateFile(input)){
+ this._uploadFile(input);
+ }
+ }
+ this._button.reset();
+ },
+ _uploadFileList: function(files){
+ for (var i=0; i<files.length; i++){
+ if ( !this._validateFile(files[i])){
+ return;
+ }
+ }
+
+ for (var i=0; i<files.length; i++){
+ this._uploadFile(files[i]);
+ }
+ },
+ _uploadFile: function(fileContainer){
+ var id = this._handler.add(fileContainer);
+ var fileName = this._handler.getName(id);
+
+ if (this._options.onSubmit(id, fileName) !== false){
+ this._onSubmit(id, fileName);
+ this._handler.upload(id, this._options.params);
+ }
+ },
+ _validateFile: function(file){
+ var name, size;
+
+ if (file.value){
+ // it is a file input
+ // get input value and remove path to normalize
+ name = file.value.replace(/.*(\/|\\)/, "");
+ } else {
+ // fix missing properties in Safari
+ name = file.fileName != null ? file.fileName : file.name;
+ size = file.fileSize != null ? file.fileSize : file.size;
+ }
+
+ if (! this._isAllowedExtension(name)){
+ this._error('typeError', name);
+ return false;
+
+ } else if (size === 0){
+ this._error('emptyError', name);
+ return false;
+
+ } else if (size && this._options.sizeLimit && size > this._options.sizeLimit){
+ this._error('sizeError', name);
+ return false;
+
+ } else if (size && size < this._options.minSizeLimit){
+ this._error('minSizeError', name);
+ return false;
+ }
+
+ return true;
+ },
+ _error: function(code, fileName){
+ var message = this._options.messages[code];
+ function r(name, replacement){ message = message.replace(name, replacement); }
+
+ r('{file}', this._formatFileName(fileName));
+ r('{extensions}', this._options.allowedExtensions.join(', '));
+ r('{sizeLimit}', this._formatSize(this._options.sizeLimit));
+ r('{minSizeLimit}', this._formatSize(this._options.minSizeLimit));
+
+ this._options.showMessage(message);
+ },
+ _formatFileName: function(name){
+ if (name.length > 33){
+ name = name.slice(0, 19) + '...' + name.slice(-13);
+ }
+ return name;
+ },
+ _isAllowedExtension: function(fileName){
+ var ext = (-1 !== fileName.indexOf('.')) ? fileName.replace(/.*[.]/, '').toLowerCase() : '';
+ var allowed = this._options.allowedExtensions;
+
+ if (!allowed.length){return true;}
+
+ for (var i=0; i<allowed.length; i++){
+ if (allowed[i].toLowerCase() == ext){ return true;}
+ }
+
+ return false;
+ },
+ _formatSize: function(bytes){
+ var i = -1;
+ do {
+ bytes = bytes / 1024;
+ i++;
+ } while (bytes > 99);
+
+ return Math.max(bytes, 0.1).toFixed(1) + ['kB', 'MB', 'GB', 'TB', 'PB', 'EB'][i];
+ }
+};
+
+
+/**
+ * Class that creates upload widget with drag-and-drop and file list
+ * @inherits qq.FileUploaderBasic
+ */
+qq.FileUploader = function(o){
+ // call parent constructor
+ qq.FileUploaderBasic.apply(this, arguments);
+
+ // additional options
+ qq.extend(this._options, {
+ element: null,
+ // if set, will be used instead of qq-upload-list in template
+ listElement: null,
+
+ template: '<div class="qq-uploader">' +
+ '<div class="qq-upload-drop-area"><span>Drop files here to upload</span></div>' +
+ '<div class="qq-upload-button">Upload a file</div>' +
+ '<ul class="qq-upload-list"></ul>' +
+ '</div>',
+
+ // template for one item in file list
+ fileTemplate: '<li>' +
+ '<span class="qq-upload-file"></span>' +
+ '<span class="qq-upload-spinner"></span>' +
+ '<span class="qq-upload-size"></span>' +
+ '<a class="qq-upload-cancel" href="#">Cancel</a>' +
+ '<span class="qq-upload-failed-text">Failed</span>' +
+ '</li>',
+
+ classes: {
+ // used to get elements from templates
+ button: 'qq-upload-button',
+ drop: 'qq-upload-drop-area',
+ dropActive: 'qq-upload-drop-area-active',
+ list: 'qq-upload-list',
+
+ file: 'qq-upload-file',
+ spinner: 'qq-upload-spinner',
+ size: 'qq-upload-size',
+ cancel: 'qq-upload-cancel',
+
+ // added to list item when upload completes
+ // used in css to hide progress spinner
+ success: 'qq-upload-success',
+ fail: 'qq-upload-fail'
+ }
+ });
+ // overwrite options with user supplied
+ qq.extend(this._options, o);
+
+ this._element = this._options.element;
+ this._element.innerHTML = this._options.template;
+ this._listElement = this._options.listElement || this._find(this._element, 'list');
+
+ this._classes = this._options.classes;
+
+ this._button = this._createUploadButton(this._find(this._element, 'button'));
+
+ this._bindCancelEvent();
+ this._setupDragDrop();
+};
+
+// inherit from Basic Uploader
+qq.extend(qq.FileUploader.prototype, qq.FileUploaderBasic.prototype);
+
+qq.extend(qq.FileUploader.prototype, {
+ /**
+ * Gets one of the elements listed in this._options.classes
+ **/
+ _find: function(parent, type){
+ var element = qq.getByClass(parent, this._options.classes[type])[0];
+ if (!element){
+ throw new Error('element not found ' + type);
+ }
+
+ return element;
+ },
+ _setupDragDrop: function(){
+ var self = this,
+ dropArea = this._find(this._element, 'drop');
+
+ var dz = new qq.UploadDropZone({
+ element: dropArea,
+ onEnter: function(e){
+ qq.addClass(dropArea, self._classes.dropActive);
+ e.stopPropagation();
+ },
+ onLeave: function(e){
+ e.stopPropagation();
+ },
+ onLeaveNotDescendants: function(e){
+ qq.removeClass(dropArea, self._classes.dropActive);
+ },
+ onDrop: function(e){
+ dropArea.style.display = 'none';
+ qq.removeClass(dropArea, self._classes.dropActive);
+ self._uploadFileList(e.dataTransfer.files);
+ }
+ });
+
+ dropArea.style.display = 'none';
+
+ qq.attach(document, 'dragenter', function(e){
+ if (!dz._isValidFileDrag(e)) return;
+
+ dropArea.style.display = 'block';
+ });
+ qq.attach(document, 'dragleave', function(e){
+ if (!dz._isValidFileDrag(e)) return;
+
+ var relatedTarget = document.elementFromPoint(e.clientX, e.clientY);
+ // only fire when leaving document out
+ if ( ! relatedTarget || relatedTarget.nodeName == "HTML"){
+ dropArea.style.display = 'none';
+ }
+ });
+ },
+ _onSubmit: function(id, fileName){
+ qq.FileUploaderBasic.prototype._onSubmit.apply(this, arguments);
+ this._addToList(id, fileName);
+ },
+ _onProgress: function(id, fileName, loaded, total){
+ qq.FileUploaderBasic.prototype._onProgress.apply(this, arguments);
+
+ var item = this._getItemByFileId(id);
+ var size = this._find(item, 'size');
+ size.style.display = 'inline';
+
+ var text;
+ if (loaded != total){
+ text = Math.round(loaded / total * 100) + '% from ' + this._formatSize(total);
+ } else {
+ text = this._formatSize(total);
+ }
+
+ qq.setText(size, text);
+ },
+ _onComplete: function(id, fileName, result){
+ qq.FileUploaderBasic.prototype._onComplete.apply(this, arguments);
+
+ // mark completed
+ var item = this._getItemByFileId(id);
+ qq.remove(this._find(item, 'cancel'));
+ qq.remove(this._find(item, 'spinner'));
+
+ if (result.success){
+ qq.addClass(item, this._classes.success);
+ } else {
+ qq.addClass(item, this._classes.fail);
+ }
+ },
+ _addToList: function(id, fileName){
+ var item = qq.toElement(this._options.fileTemplate);
+ item.qqFileId = id;
+
+ var fileElement = this._find(item, 'file');
+ qq.setText(fileElement, this._formatFileName(fileName));
+ this._find(item, 'size').style.display = 'none';
+
+ this._listElement.appendChild(item);
+ },
+ _getItemByFileId: function(id){
+ var item = this._listElement.firstChild;
+
+ // there can't be txt nodes in dynamically created list
+ // and we can use nextSibling
+ while (item){
+ if (item.qqFileId == id) return item;
+ item = item.nextSibling;
+ }
+ },
+ /**
+ * delegate click event for cancel link
+ **/
+ _bindCancelEvent: function(){
+ var self = this,
+ list = this._listElement;
+
+ qq.attach(list, 'click', function(e){
+ e = e || window.event;
+ var target = e.target || e.srcElement;
+
+ if (qq.hasClass(target, self._classes.cancel)){
+ qq.preventDefault(e);
+
+ var item = target.parentNode;
+ self._handler.cancel(item.qqFileId);
+ qq.remove(item);
+ }
+ });
+ }
+});
+
+qq.UploadDropZone = function(o){
+ this._options = {
+ element: null,
+ onEnter: function(e){},
+ onLeave: function(e){},
+ // is not fired when leaving element by hovering descendants
+ onLeaveNotDescendants: function(e){},
+ onDrop: function(e){}
+ };
+ qq.extend(this._options, o);
+
+ this._element = this._options.element;
+
+ this._disableDropOutside();
+ this._attachEvents();
+};
+
+qq.UploadDropZone.prototype = {
+ _disableDropOutside: function(e){
+ // run only once for all instances
+ if (!qq.UploadDropZone.dropOutsideDisabled ){
+
+ qq.attach(document, 'dragover', function(e){
+ if (e.dataTransfer){
+ e.dataTransfer.dropEffect = 'none';
+ e.preventDefault();
+ }
+ });
+
+ qq.UploadDropZone.dropOutsideDisabled = true;
+ }
+ },
+ _attachEvents: function(){
+ var self = this;
+
+ qq.attach(self._element, 'dragover', function(e){
+ if (!self._isValidFileDrag(e)) return;
+
+ var effect = e.dataTransfer.effectAllowed;
+ if (effect == 'move' || effect == 'linkMove'){
+ e.dataTransfer.dropEffect = 'move'; // for FF (only move allowed)
+ } else {
+ e.dataTransfer.dropEffect = 'copy'; // for Chrome
+ }
+
+ e.stopPropagation();
+ e.preventDefault();
+ });
+
+ qq.attach(self._element, 'dragenter', function(e){
+ if (!self._isValidFileDrag(e)) return;
+
+ self._options.onEnter(e);
+ });
+
+ qq.attach(self._element, 'dragleave', function(e){
+ if (!self._isValidFileDrag(e)) return;
+
+ self._options.onLeave(e);
+
+ var relatedTarget = document.elementFromPoint(e.clientX, e.clientY);
+ // do not fire when moving a mouse over a descendant
+ if (qq.contains(this, relatedTarget)) return;
+
+ self._options.onLeaveNotDescendants(e);
+ });
+
+ qq.attach(self._element, 'drop', function(e){
+ if (!self._isValidFileDrag(e)) return;
+
+ e.preventDefault();
+ self._options.onDrop(e);
+ });
+ },
+ _isValidFileDrag: function(e){
+ var dt = e.dataTransfer,
+ // do not check dt.types.contains in webkit, because it crashes safari 4
+ isWebkit = navigator.userAgent.indexOf("AppleWebKit") > -1;
+
+ // dt.effectAllowed is none in Safari 5
+ // dt.types.contains check is for firefox
+ return dt && dt.effectAllowed != 'none' &&
+ (dt.files || (!isWebkit && dt.types.contains && dt.types.contains('Files')));
+
+ }
+};
+
+qq.UploadButton = function(o){
+ this._options = {
+ element: null,
+ // if set to true adds multiple attribute to file input
+ multiple: false,
+ // name attribute of file input
+ name: 'file',
+ onChange: function(input){},
+ hoverClass: 'qq-upload-button-hover',
+ focusClass: 'qq-upload-button-focus'
+ };
+
+ qq.extend(this._options, o);
+
+ this._element = this._options.element;
+
+ // make button suitable container for input
+ qq.css(this._element, {
+ position: 'relative',
+ overflow: 'hidden',
+ // Make sure browse button is in the right side
+ // in Internet Explorer
+ direction: 'ltr'
+ });
+
+ this._input = this._createInput();
+};
+
+qq.UploadButton.prototype = {
+ /* returns file input element */
+ getInput: function(){
+ return this._input;
+ },
+ /* cleans/recreates the file input */
+ reset: function(){
+ if (this._input.parentNode){
+ qq.remove(this._input);
+ }
+
+ qq.removeClass(this._element, this._options.focusClass);
+ this._input = this._createInput();
+ },
+ _createInput: function(){
+ var input = document.createElement("input");
+
+ if (this._options.multiple){
+ input.setAttribute("multiple", "multiple");
+ }
+
+ input.setAttribute("type", "file");
+ input.setAttribute("name", this._options.name);
+
+ qq.css(input, {
+ position: 'absolute',
+ // in Opera only 'browse' button
+ // is clickable and it is located at
+ // the right side of the input
+ right: 0,
+ top: 0,
+ fontFamily: 'Arial',
+ // 4 persons reported this, the max values that worked for them were 243, 236, 236, 118
+ fontSize: '118px',
+ margin: 0,
+ padding: 0,
+ cursor: 'pointer',
+ opacity: 0
+ });
+
+ this._element.appendChild(input);
+
+ var self = this;
+ qq.attach(input, 'change', function(){
+ self._options.onChange(input);
+ });
+
+ qq.attach(input, 'mouseover', function(){
+ qq.addClass(self._element, self._options.hoverClass);
+ });
+ qq.attach(input, 'mouseout', function(){
+ qq.removeClass(self._element, self._options.hoverClass);
+ });
+ qq.attach(input, 'focus', function(){
+ qq.addClass(self._element, self._options.focusClass);
+ });
+ qq.attach(input, 'blur', function(){
+ qq.removeClass(self._element, self._options.focusClass);
+ });
+
+ // IE and Opera, unfortunately have 2 tab stops on file input
+ // which is unacceptable in our case, disable keyboard access
+ if (window.attachEvent){
+ // it is IE or Opera
+ input.setAttribute('tabIndex', "-1");
+ }
+
+ return input;
+ }
+};
+
+/**
+ * Class for uploading files, uploading itself is handled by child classes
+ */
+qq.UploadHandlerAbstract = function(o){
+ this._options = {
+ debug: false,
+ action: '/upload.php',
+ // maximum number of concurrent uploads
+ maxConnections: 999,
+ onProgress: function(id, fileName, loaded, total){},
+ onComplete: function(id, fileName, response){},
+ onCancel: function(id, fileName){}
+ };
+ qq.extend(this._options, o);
+
+ this._queue = [];
+ // params for files in queue
+ this._params = [];
+};
+qq.UploadHandlerAbstract.prototype = {
+ log: function(str){
+ if (this._options.debug && window.console) console.log('[uploader] ' + str);
+ },
+ /**
+ * Adds file or file input to the queue
+ * @returns id
+ **/
+ add: function(file){},
+ /**
+ * Sends the file identified by id and additional query params to the server
+ */
+ upload: function(id, params){
+ var len = this._queue.push(id);
+
+ var copy = {};
+ qq.extend(copy, params);
+ this._params[id] = copy;
+
+ // if too many active uploads, wait...
+ if (len <= this._options.maxConnections){
+ this._upload(id, this._params[id]);
+ }
+ },
+ /**
+ * Cancels file upload by id
+ */
+ cancel: function(id){
+ this._cancel(id);
+ this._dequeue(id);
+ },
+ /**
+ * Cancells all uploads
+ */
+ cancelAll: function(){
+ for (var i=0; i<this._queue.length; i++){
+ this._cancel(this._queue[i]);
+ }
+ this._queue = [];
+ },
+ /**
+ * Returns name of the file identified by id
+ */
+ getName: function(id){},
+ /**
+ * Returns size of the file identified by id
+ */
+ getSize: function(id){},
+ /**
+ * Returns id of files being uploaded or
+ * waiting for their turn
+ */
+ getQueue: function(){
+ return this._queue;
+ },
+ /**
+ * Actual upload method
+ */
+ _upload: function(id){},
+ /**
+ * Actual cancel method
+ */
+ _cancel: function(id){},
+ /**
+ * Removes element from queue, starts upload of next
+ */
+ _dequeue: function(id){
+ var i = qq.indexOf(this._queue, id);
+ this._queue.splice(i, 1);
+
+ var max = this._options.maxConnections;
+
+ if (this._queue.length >= max){
+ var nextId = this._queue[max-1];
+ this._upload(nextId, this._params[nextId]);
+ }
+ }
+};
+
+/**
+ * Class for uploading files using form and iframe
+ * @inherits qq.UploadHandlerAbstract
+ */
+qq.UploadHandlerForm = function(o){
+ qq.UploadHandlerAbstract.apply(this, arguments);
+
+ this._inputs = {};
+};
+// @inherits qq.UploadHandlerAbstract
+qq.extend(qq.UploadHandlerForm.prototype, qq.UploadHandlerAbstract.prototype);
+
+qq.extend(qq.UploadHandlerForm.prototype, {
+ add: function(fileInput){
+ fileInput.setAttribute('name', 'qqfile');
+ var id = 'qq-upload-handler-iframe' + qq.getUniqueId();
+
+ this._inputs[id] = fileInput;
+
+ // remove file input from DOM
+ if (fileInput.parentNode){
+ qq.remove(fileInput);
+ }
+
+ return id;
+ },
+ getName: function(id){
+ // get input value and remove path to normalize
+ return this._inputs[id].value.replace(/.*(\/|\\)/, "");
+ },
+ _cancel: function(id){
+ this._options.onCancel(id, this.getName(id));
+
+ delete this._inputs[id];
+
+ var iframe = document.getElementById(id);
+ if (iframe){
+ // to cancel request set src to something else
+ // we use src="javascript:false;" because it doesn't
+ // trigger ie6 prompt on https
+ iframe.setAttribute('src', 'javascript:false;');
+
+ qq.remove(iframe);
+ }
+ },
+ _upload: function(id, params){
+ var input = this._inputs[id];
+
+ if (!input){
+ throw new Error('file with passed id was not added, or already uploaded or cancelled');
+ }
+
+ var fileName = this.getName(id);
+
+ var iframe = this._createIframe(id);
+ var form = this._createForm(iframe, params);
+ form.appendChild(input);
+
+ var self = this;
+ this._attachLoadEvent(iframe, function(){
+ self.log('iframe loaded');
+
+ var response = self._getIframeContentJSON(iframe);
+
+ self._options.onComplete(id, fileName, response);
+ self._dequeue(id);
+
+ delete self._inputs[id];
+ // timeout added to fix busy state in FF3.6
+ setTimeout(function(){
+ qq.remove(iframe);
+ }, 1);
+ });
+
+ form.submit();
+ qq.remove(form);
+
+ return id;
+ },
+ _attachLoadEvent: function(iframe, callback){
+ qq.attach(iframe, 'load', function(){
+ // when we remove iframe from dom
+ // the request stops, but in IE load
+ // event fires
+ if (!iframe.parentNode){
+ return;
+ }
+
+ // fixing Opera 10.53
+ if (iframe.contentDocument &&
+ iframe.contentDocument.body &&
+ iframe.contentDocument.body.innerHTML == "false"){
+ // In Opera event is fired second time
+ // when body.innerHTML changed from false
+ // to server response approx. after 1 sec
+ // when we upload file with iframe
+ return;
+ }
+
+ callback();
+ });
+ },
+ /**
+ * Returns json object received by iframe from server.
+ */
+ _getIframeContentJSON: function(iframe){
+ // iframe.contentWindow.document - for IE<7
+ var doc = iframe.contentDocument ? iframe.contentDocument: iframe.contentWindow.document,
+ response;
+
+ this.log("converting iframe's innerHTML to JSON");
+ this.log("innerHTML = " + doc.body.innerHTML);
+
+ try {
+ response = eval("(" + doc.body.innerHTML + ")");
+ } catch(err){
+ response = {};
+ }
+
+ return response;
+ },
+ /**
+ * Creates iframe with unique name
+ */
+ _createIframe: function(id){
+ // We can't use following code as the name attribute
+ // won't be properly registered in IE6, and new window
+ // on form submit will open
+ // var iframe = document.createElement('iframe');
+ // iframe.setAttribute('name', id);
+
+ var iframe = qq.toElement('<iframe src="javascript:false;" name="' + id + '" />');
+ // src="javascript:false;" removes ie6 prompt on https
+
+ iframe.setAttribute('id', id);
+
+ iframe.style.display = 'none';
+ document.body.appendChild(iframe);
+
+ return iframe;
+ },
+ /**
+ * Creates form, that will be submitted to iframe
+ */
+ _createForm: function(iframe, params){
+ // We can't use the following code in IE6
+ // var form = document.createElement('form');
+ // form.setAttribute('method', 'post');
+ // form.setAttribute('enctype', 'multipart/form-data');
+ // Because in this case file won't be attached to request
+ var form = qq.toElement('<form method="post" enctype="multipart/form-data"></form>');
+
+ var queryString = qq.obj2url(params, this._options.action);
+
+ form.setAttribute('action', queryString);
+ form.setAttribute('target', iframe.name);
+ form.style.display = 'none';
+ document.body.appendChild(form);
+
+ return form;
+ }
+});
+
+/**
+ * Class for uploading files using xhr
+ * @inherits qq.UploadHandlerAbstract
+ */
+qq.UploadHandlerXhr = function(o){
+ qq.UploadHandlerAbstract.apply(this, arguments);
+
+ this._files = [];
+ this._xhrs = [];
+
+ // current loaded size in bytes for each file
+ this._loaded = [];
+};
+
+// static method
+qq.UploadHandlerXhr.isSupported = function(){
+ var input = document.createElement('input');
+ input.type = 'file';
+
+ return (
+ 'multiple' in input &&
+ typeof File != "undefined" &&
+ typeof (new XMLHttpRequest()).upload != "undefined" );
+};
+
+// @inherits qq.UploadHandlerAbstract
+qq.extend(qq.UploadHandlerXhr.prototype, qq.UploadHandlerAbstract.prototype)
+
+qq.extend(qq.UploadHandlerXhr.prototype, {
+ /**
+ * Adds file to the queue
+ * Returns id to use with upload, cancel
+ **/
+ add: function(file){
+ if (!(file instanceof File)){
+ throw new Error('Passed obj in not a File (in qq.UploadHandlerXhr)');
+ }
+
+ return this._files.push(file) - 1;
+ },
+ getName: function(id){
+ var file = this._files[id];
+ // fix missing name in Safari 4
+ return file.fileName != null ? file.fileName : file.name;
+ },
+ getSize: function(id){
+ var file = this._files[id];
+ return file.fileSize != null ? file.fileSize : file.size;
+ },
+ /**
+ * Returns uploaded bytes for file identified by id
+ */
+ getLoaded: function(id){
+ return this._loaded[id] || 0;
+ },
+ /**
+ * Sends the file identified by id and additional query params to the server
+ * @param {Object} params name-value string pairs
+ */
+ _upload: function(id, params){
+ var file = this._files[id],
+ name = this.getName(id),
+ size = this.getSize(id);
+
+ this._loaded[id] = 0;
+
+ var xhr = this._xhrs[id] = new XMLHttpRequest();
+ var self = this;
+
+ xhr.upload.onprogress = function(e){
+ if (e.lengthComputable){
+ self._loaded[id] = e.loaded;
+ self._options.onProgress(id, name, e.loaded, e.total);
+ }
+ };
+
+ xhr.onreadystatechange = function(){
+ if (xhr.readyState == 4){
+ self._onComplete(id, xhr);
+ }
+ };
+
+ // build query string
+ params = params || {};
+ params['qqfile'] = name;
+ var queryString = qq.obj2url(params, this._options.action);
+
+ xhr.open("POST", queryString, true);
+ xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");
+ xhr.setRequestHeader("X-File-Name", encodeURIComponent(name));
+ xhr.setRequestHeader("Content-Type", "application/octet-stream");
+ xhr.send(file);
+ },
+ _onComplete: function(id, xhr){
+ // the request was aborted/cancelled
+ if (!this._files[id]) return;
+
+ var name = this.getName(id);
+ var size = this.getSize(id);
+
+ this._options.onProgress(id, name, size, size);
+
+ if (xhr.status == 200){
+ this.log("xhr - server response received");
+ this.log("responseText = " + xhr.responseText);
+
+ var response;
+
+ try {
+ response = eval("(" + xhr.responseText + ")");
+ } catch(err){
+ response = {};
+ }
+
+ this._options.onComplete(id, name, response);
+
+ } else {
+ this._options.onComplete(id, name, {});
+ }
+
+ this._files[id] = null;
+ this._xhrs[id] = null;
+ this._dequeue(id);
+ },
+ _cancel: function(id){
+ this._options.onCancel(id, this.getName(id));
+
+ this._files[id] = null;
+
+ if (this._xhrs[id]){
+ this._xhrs[id].abort();
+ this._xhrs[id] = null;
+ }
+ }
+});
\ No newline at end of file
projects / friendica-addons.git / blobdiff