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RealUploader.js
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/**
* @file The main queue manager of the files
* @author Alban Xhaferllari
* @date
* @version 4.0
*/
define(['FileObject', 'Constants', 'Utils', 'i18n'], /** @lends RealUploader */ function (FileObject, Constants, Utils, _) {
'use strict';
/**
* Main uploader class. Manages the queue of upload and the template
* @class RealUploader
* @param querySelector {String|HTMLElement} The element where to start the uploader, can be either a DOM element or a
* querySelector CSS
* @example <caption>As query selector</caption>
* new RealUploader('#some_id');//create a ajax uploader to the element with ID some_id
* @example <caption>HTMLElement</caption>
* var div = document.createElement('div');
* document.body.appendChild(div);
* new RealUploader(div);
* @param config {Object} Configuration of the RealUploader set by the user
* @param {String} [config.accept=null] Accept attribute to set on the the file input, will be used in combination
* with the allowExtension setting
* @example <caption>Accept example</caption>
* {
* accept: 'image/*'; //will accept every image
* }
* @param {Array} [config.allowedExtensions=[]] Array of allowed upload extension, can be set also in php script
* @example <caption>allowedExtensions</caption>
* {
* allowedExtensions: ['jpg', 'pdf']; //only files with this extensions will be selected and the input
* //will be filtered
* }
* @param {boolean} [config.allowDelete=false] Allow user to delete file after upload. NOTE: should also be enabled
* from server side for security reason
* @param {boolean} [config.autoStart=false] If true upload will start immediately after drop of files or select
* of files
* @param {boolean} [config.async=true] Set the XMlHttpRequest async for the upload
* @param {number} [config.bandwidthUpdateInterval=500] Set the interval that refresh the bandwidth calculation,
* 0 to disable
* @param {boolean} [config.checkFileExists=false] Do not ask user for file exits if false, if true ask user to
* override or not the file
* @param {number} [config.chunkSize = 1048576] Default 1Mb, if supported send file to server by chunks, not at once
* @param {Object} [config.data={}] User data to send to the server with the file upload
* @param {String|Object|Function}[config.dropClass='ax-drop'] Set the class of dom element when the files
* are drag over
* @param {String|HTMLElement} [config.dropArea='self'] Set the DOM element where to bind the drag event. If it
* is provided the self string then the dropArea will be bind to the uploader container
* @param {boolean} [config.enable=true] Start the uploader state. If set to false, it will not be possible to
* upload files until an external call to the enable method will be called
* @param {boolean} [config.editFilename=false] Enabled file name edit before upload with double click
* @param {boolean} [config.exifRead=false] Enables exif read from JPEG file, it will attach the information to
* the file object
* @param {String} [config.fileTemplate=null] Customize the html for the file template, to be used by keeping the
* class names. This will allow the users to change easy the html and preview.
* The default value is hardcoded inside the code for more see the file documentation
* @param {boolean} [config.hideUploadButton=false] Hides the main upload button, to be used on autoStart to true
* or when the upload is trigger by external function
* @param {String} [config.language='auto'] Set the language of the string for button, labels... By default
* it is detected the browser language. The format should be en_UK, it_IT, sq_AL ...
* @param {String} [config.mainTemplate=null] Set the main template html for the base buttons: Add Files, Upload All,
* Remove All. This will allow the users to change easy the html. The default value is hardcoded for more see
* the documentation
* @param {number} [config.maxFiles=9999] Set the maximum file of number allow to upload at the same session.
* Recommended to keep this settings low when uploading big files
* @param {number} [config.maxConnections=3] Set the maximum number of parallel uploads. By default most of browser
* will allow 6 parallel connections. Limit to three will allow a faster file upload.
* @param {number|String} [config.maxFileSize=10485760] Set the maximum file size for file upload.
* Can be set as String with format 10M, 200K, 4G to set the unit or as number 1123123 for indicating bytes.
* @param {number|String} [config.minFileSize=0] Set the minimum file size for file upload. Can be set as String
* with format 10M, 200K, 4G to set the unit or as number 1123123 for indicating bytes.
* @param {boolean} [config.md5Calculate=false] Calculate the MD5 hash of the file using WebWorkers,
* can slow down or hang the browser on big files, use with care.
* @param {boolean} [config.md5Check=false] Verify the correct file upload by comparing the server md5 with the md5
* calculated on client side. Works only of md5Calculate is enabled.
* @param {boolean} [config.overrideFile=false] If set to false the files on the server will not be override.
* The file will be renamed if already exits. If set to true the file user will be prompt to override the file.
* @param {number} [config.thumbHeight=0] Set the maximum height of the image thumbnail to generate on server
* @param {number} [config.thumbWidth=0] Set the maximum height of the image to thumbnail on server
* @param {String} [config.thumbPostfix='_thumb'] Set the postfix of the generated re-sized image, Filename_thumb.ext
* @param {String} [config.thumbPath=''] Set the path where to upload the re-sized image
* @param {String} [config.thumbFormat=''] Set the thumbnail export format, by default same as original image.
* Possible values jpg, png, gif.
* @param {URL} [config.url='upload.php'] Set the server side script that handles the upload
* @param {boolean} [config.uploadDir=false] Experimental feature for uploading an entire folder.
* Works only on Google Chrome
* @param {boolean} [config.removeOnSuccess=false] If true the file will be removed from the list when the upload is successful
* @param {boolean} [config.removeOnError=false] If true the file will be removed from the list when the upload fails
* @param {String|function} [config.remotePath=''] Set the remote path where to upload the file on server. If this path
* is set on the server script then this value will be ignored. The folder will be created automatically if does not exists
* @param {Object} [config.resizeImage] Resize the image settings before uploading on server. This will create a new file
* and can work both with the server size. Uses WebWorkers and Canvas.
* @param {number} [config.resizeImage.maxWidth=0] Maximum width for the resize
* @param {number} [config.resizeImage.maxHeight=0] Maximum height for the resize
* @param {number} [config.resizeImage.outputQuality=1] Set the output quality. Possible values from 0 to 1
* @param {number} [config.resizeImage.scaleMethod=3] Select the scale method to use for the image resize. Current
* available values 0 for nearest neighbour, 1 for haming 2 for lancoz 2, 3 for lancoz 3
* @param {number} [config.resizeImage.keepExif=false] Set if either to keep exif during resize, works only if
* exif reader is enabled
* @param {number} [config.resizeImage.unsharpAmount=0] 0-500 set the sharpness level
* @param {number} [config.resizeImage.unsharpThreshold=0] 0-100 set the sharpness threshold
* @param {number} [config.resizeImage.alpha=true]
* @param {String} [config.resizeImage.outputFormat='auto'] Select the output format can be png/jpg
* @param {boolean} [config.resizeImage.removeExif=false] Remove the exif info on re-sized if true. false will copy
* @param {boolean} [config.resizeImage.allowOverResize=false] If the maxWidth/maxHeight is over the real image
* @param {boolean} [config.resizeImage.keepExif=false] If true will copy the exif during resize
* size then the image will not be reside if set to true then this will allow to stretch the image on resize
* the exif info on the new image
* @param {boolean} [config.previews=true] If true the system will make the preview of the image and a light box
* Set to false to avoid memory problems on multiple image selection
* @param {number} [config.previewFileSize=10485760] Set a limit to the image preview, for big images the browser
* can cause memory problems and slowness
* @param {Function} [config.listeners] Main listeners handles. This is an object containing all listeners events
* @param {Function} [config.listeners.start] Runs on upload start of the upload
* @param {Function} [config.listeners.startFile] Runs on upload start for the single file
* @param {Function} [config.listeners.finish] Runs when all files finish uploading
* @param {Function} [config.listeners.finishFile] Runs on upload finish success for the single file
* @param {Function} [config.listeners.error] Runs on error for any file
* @param {Function} [config.listeners.errorFile] Runs on error upload for single file
* @param {Function} [config.listeners.beforeUpload] Runs before upload all, if return false then upload is stopped
* @param {Function} [config.listeners.beforeUploadFile] Runs before the upload of the single if returns false upload is stopped for the single file
* @param {Function} [config.listeners.init] Runs on plugin initialization
* @param {Function} [config.listeners.progress] Runs on progress action of upload all
* @param {Function} [config.listeners.progressFile] Runs on file elaboration progress, upload/md5 calc/resize
* @param {Function} [config.listeners.beforePreview] Runs before preview, if return false stops preview
* @param {Function} [config.listeners.preview] Runs after preview has been done
* @param {Function} [config.listeners.select] Runs after file select, returns selected file as parameter of callback
* @param {Function} [config.listeners.chunkUpload] Runs on a chunk upload
* @param {Function} [config.listeners.exifDone] Runs once the exifDone has been calculated
* @param {Function} [config.listeners.md5Done] Runs once the md5 has been calculated
* @param {Function} [config.listeners.beforeImageResize] Runs before the resize takes place
* @param {Function} [config.listeners.imageResize] Runs on image resize done
* @param {Function} [config.validateFile=null] User defined callback to run on file validation, with custom
* condition. If this function return false then the file will not be added to the list
* @constructor
*/
var RealUploader = function (querySelector, userConfig) {
this.fileList = {};
this.fileIndex = 0;
this.uploadQueue = [];
this.globalStatus = Constants.AX_IDLE;
this.dom = {};
this.totalUploadedBytes = 0;
this.checkInterval = false;
//OPTIONS A-Z
this.config = {
_data: {
accept: null,
allowedExtensions: [],
allowDelete: false,
autoStart: false,
async: true,
bandwidthUpdateInterval: 500,
checkFileExists: false,
chunkSize: 1048576,
data: {},
dropClass: 'ax-drop',
dropArea: 'self',
enable: true,
editFilename: false,
exifRead: false,
fileTemplate: null,
hideUploadButton: false,
language: 'auto',
mainTemplate: null,
maxFiles: 9999,
maxConnections: 3,
maxFileSize: 10485760,
minFileSize: 0,
md5Calculate: false,
md5Check: true,
overrideFile: false,
/**
* This settings are used create a re-sized copy (copy) of images on server side
* Currently this is supported only if any processing image extension is enabled on sever
* For PHP it uses the GD library
*/
thumbHeight: 0,
thumbWidth: 0,
thumbPostfix: '_thumb',
thumbPath: '',
thumbFormat: '',
url: 'upload.php',
uploadDir: false,
removeOnSuccess: false,
removeOnError: false,
remotePath: '',
/**
* Client side resize
*/
resizeImage: {
maxWidth: 0,
maxHeight: 0,
outputQuality: 1,
scaleMethod: 3,
outputFormat: null,
allowOverResize: false,
keepExif: false,
keepAspectRatio: true,
unsharpAmount: 0,
unsharpThreshold: 0,
alpha: true
},
previews: true,
previewFileSize: 10 * 1024 * 1024,
listeners: null,
validateFile: null
}
};
//The total list of events. Each array will contain eventually user bind callbacks for the events
this.events = {
init: [], //runs on plugin initialization
start: [], //runs on upload start global
startFile: [], //runs on upload start for the single file
finish: [], //runs on upload finish success for all files
finishFile: [], //runs on upload finish success for the single file
error: [], //runs on error for any file
errorFile: [], //runs on error upload for single file
beforeUpload: [], //runs before upload all, if return false then upload is stopped
beforeUploadFile: [], //runs before the upload of the single if returns false upload is stopped for the single file
progress: [], //runs on progress action of upload all
progressFile: [], //runs on file elaboration progress, upload/md5 calc/resize
beforePreview: [], //runs before preview, if return false stops preview
preview: [], //runs after preview has been done
select: [], //runs after file select, returns selected files as parameter of callback
chunkUpload: [], //runs on a chunk upload
exifDone: [], //runs once the exifDone has been calculated
md5Start: [], //runs before starting the md5 calculation
md5Done: [], //runs once the md5 has been calculated
beforeImageResize: [], //runs before the resize takes place
imageResize: [], //runs on image resize done
dragEnter: [], //runs on drag enter
dragLeave: [], //run on drag leave
dragOver: [], //run on drag over
drop: [], //run on drop files
afterRenderFile: [], //run after the file DOM element is attached to the dom
beforeRenderFile: [] //runs before the file element is beeing rendered to the dom
};
var container = this._getMainContainer(querySelector);
if (container) {
this._setMainContainer(container);
this._defineCheckersAndSetters(userConfig);
this.slots = this.config.maxConnections;
new _(this.config.language);
if (this.checkUploadSupport()) {
this.renderHtml();
this._bindEvents();
this.triggerEvent('init', []);
}
}
};
RealUploader.prototype = {
/**
* Pre-check settings function, sanitize settings and adds getters and setters for future validations
* @param userSettings settings define by the user
* @returns {Object} settings to be used
*/
_defineCheckersAndSetters: function (userSettings) {
var me = this;
//define some getters and setters for validating settings
Object.defineProperty(me.config, 'accept', {
get: function () {
return this._data.accept ? this._data.accept : '';
},
set: function (val) {
this._data.accept = val;
me._setAcceptAttribute();
}
});
Object.defineProperty(me.config, 'allowedExtensions', {
get: function () {
return this._data.allowedExtensions;
},
set: function (exts) {
this._data.allowedExtensions = exts.map(function (item) {
return item.toLowerCase();
});
me._setAcceptAttribute();
}
});
Object.defineProperty(me.config, 'language', {
get: function () {
if (this._data.language === 'auto') {
var language = window.navigator.userLanguage || window.navigator.language;
return language.replace('-', '_');
}
return this._data.language;
},
set: function (val) {
this._data.language = val;
}
});
Object.defineProperty(me.config, 'maxFileSize', {
get: function () {
return this._data.maxFileSize;
},
set: function (size) {
this._data.maxFileSize = Utils.parseSize(size);
}
});
Object.defineProperty(me.config, 'minFileSize', {
get: function () {
return this._data.minFileSize;
},
set: function (size) {
this._data.minFileSize = Utils.parseSize(size);
}
});
Object.defineProperty(me.config, 'listeners', {
get: function () {
return this._data.listeners;
},
set: function (listeners) {
if (typeof listeners === 'object') {
for (var event in listeners) {
if (listeners.hasOwnProperty(event)) {
var callback = listeners[event];
me.on(event, callback.fn || callback, callback.scope || me);
}
}
this._data.listeners = listeners;
}
}
});
Object.defineProperty(me.config, 'enable', {
get: function () {
return this._data.enable;
},
set: function (val) {
this._data.enable = !!val;//convert to boolean
if (this._data.enable) {
me.dom.container.classList.remove('ax-disabled');
} else {
me.dom.container.classList.add('ax-disabled');
}
}
});
Utils.extend(this.config, this.config._data, false);
Utils.extend(this.config, userSettings, false);
Utils.log('Final config', this.config.remotePath);
return this.config;
},
/**
* Check if the browser supports the HTML5 upload
* @returns {boolean} true if browser support HTML5
*/
checkUploadSupport: function () {
// safari<5.1.7 is bugged in file api force to basic html4 upload
var isBuggedSafari = /Safari/.test(navigator.userAgent) && /Apple Computer/.test(navigator.vendor) && /Version\/5\./.test(navigator.userAgent) && /Win/.test(navigator.platform);
if (isBuggedSafari || window.FormData === undefined) {
console.error(_('RealUploader: This browser is not supported'));
return false;
}
//safari on IOS cannot upload multiple files, buggy
var isBuggedIOS7 = navigator.userAgent.indexOf(" OS 7_") !== -1;
if (isBuggedIOS7) {
this.config.maxFiles = 1;
}
return true;
},
_getMainContainer: function (querySelector) {
var container = null;
if (querySelector instanceof HTMLElement) {
container = querySelector;
} else if (typeof querySelector === 'string') {
container = Utils.getEl(querySelector);
}
if(!container) {
console.warn(querySelector + _(' not found on the DOM'));
}
return container;
},
_setMainContainer: function (container) {
//check if the plugin has already been applied to this element
if (container.classList.contains('ax-uploader')) {
console.warn(_('Real Uploader is already bind to this element'));
} else {
this.dom.container = container;
}
},
_addRemoveButton: function () {
var me = this;
me.dom.removeButton = Utils.getEl(me.dom.container, '.ax-clear');
if (me.dom.removeButton) {
me.dom.removeButton.setAttribute('title', _('Remove all'));
me.dom.removeButtonText = Utils.getEl(me.dom.removeButton, '.ax-text');
if (me.dom.removeButtonText) {
me.dom.removeButtonText.innerHTML = _('Remove all');
}
}
return me;
},
_addUploadButton: function () {
var me = this;
me.dom.uploadButton = Utils.getEl(me.dom.container, '.ax-upload-all');
if (me.dom.uploadButton) {
me.dom.uploadButton.setAttribute('title', _('Upload all files'));
me.dom.uploadButtonText = Utils.getEl(me.dom.uploadButton, '.ax-text');
if (me.dom.uploadButtonText) {
me.dom.uploadButtonText.innerHTML = _('Start upload');
}
}
return me;
},
_addBrowseButton: function () {
var me = this;
me.dom.browseButton = Utils.getEl(me.dom.container, '.ax-browse-c');
if (me.dom.browseButton) {
me.dom.browseButton.setAttribute('title', _('Add files'));
me.dom.browseButtonText = Utils.getEl(me.dom.browseButton, '.ax-text');
if (me.dom.browseButtonText) {
me.dom.browseButtonText.innerHTML = _('Add files');
}
}
return me;
},
_setDragAndDropTitle: function () {
var me = this;
me.dom.title = Utils.getEl(me.dom.container, '.ax-main-title');
if (me.dom.title) {
me.dom.title.innerHTML = _('Select Files or Drag&Drop Files');
}
return me;
},
_addBrowseInput: function () {
var me = this;
me.dom.browseInput = Utils.getEl(me.dom.container, '.ax-browse');
if (me.dom.browseInput) {
if (me.config.maxFiles !== 1) {
me.dom.browseInput.setAttribute('multiple', 'multiple');
}
me._setAcceptAttribute();
me._enableUploadDir();
}
return me;
},
_enableUploadDir: function () {
var me = this;
//experimental feature, works only on google chrome, has some performances issue, upload directory
if (me.config.uploadDir) {
me.dom.browseInput.setAttribute('webkitdirectory', 'webkitdirectory');
me.dom.browseInput.setAttribute('mozdirectory', 'mozdirectory');
me.dom.browseInput.setAttribute('directory', 'directory');
}
return me;
},
renderHtml: function () {
var me = this;
me.dom.container.innerHTML = me.config.mainTemplate ? me.config.mainTemplate : Constants.TEMPLATE;
//create dom elements and get references
me.dom.container.classList.add('ax-uploader');
me.dom.fileList = Utils.getEl(me.dom.container, '.ax-file-list');
me._setDragAndDropTitle();
me._addBrowseButton();
me._addUploadButton();
me._addRemoveButton();
me._addBrowseInput();
return me;
},
/**
* Set the accept attribute for the input selector, uses allow extensions and accept prop to set it
* @private
*/
_setAcceptAttribute: function () {
var accept = (this.config.accept ? this.config.accept + ',' : '');
if (this.config.allowedExtensions.length > 0) {
accept += '.' + this.config.allowedExtensions.join(',.');
}
if (this.dom.browseInput && accept) {
this.dom.browseInput.setAttribute('accept', accept);
}
},
_findDropArea: function () {
var dropArea = null, me = this;
if (me.config.dropArea instanceof HTMLElement) {
dropArea = me.config.dropArea;
} else if (me.config.dropArea === 'self') {
dropArea = this.dom.container;
} else if (typeof me.config.dropArea === 'string') {
dropArea = Utils.getEl(dropArea);
} else if (typeof me.config.dropArea === 'function') {
dropArea = me.config.dropArea.call(this);
}
return dropArea;
},
_bindBrowseInputOnChange: function () {
var me = this;
if (me.dom.browseInput) {
me.dom.browseInput.addEventListener('change', function () {
if (me.config.enable) {
me.addFiles(this.files);
//chrome change fix event
me.value = '';
}
});
}
return me;
},
_bindUploadButtonClick: function () {
var me = this;
if (me.dom.uploadButton) {
me.dom.uploadButton.addEventListener('click', function () {
if (me.config.enable) me.enqueueAll();
return false;
});
}
return me;
},
_bindRemoveButtonClick: function () {
var me = this;
if (me.dom.removeButton) {
me.dom.removeButton.addEventListener('click', function () {
if (me.config.enable) me.clearQueue();
return false;
});
}
return me;
},
/**
* Bind the javascript events on the DOM objects
* @private
*/
_bindEvents: function () {
var me = this;
me._bindBrowseInputOnChange();
me._bindUploadButtonClick();
me._bindRemoveButtonClick();
me.setDropArea();
me.enable(me.config.enable);
},
/**
* Function that bind on drop event for the files
* @param dropArea the dom element where to bind the event
*/
setDropArea: function () {
var me = this;
var dropArea = me._findDropArea();
if (dropArea && dropArea instanceof HTMLElement) {
me.dom.dropMask = Utils.doEl('div');
me.dom.dropMask.classList.add('ax-mask');
me.dom.dropMask.innerHTML = '<div class="ax-mask-icon"></div>';
me.dom.container.appendChild(me.dom.dropMask);
var dragEnterRun = false;
var dragLeaveRun = false;
var config = this.config;
var eventStop = function (e) {
e.stopPropagation();//Prevent default and stop propagation on dragEnter
e.preventDefault();
};
/**
* Drag Enter can run from all elements so we use the dragEnterRun to avoid multiple run
* @param e
*/
var dragEnter = function (e) {
eventStop(e);
if (config.enable && !dragEnterRun) {
me.triggerEvent('dragEnter', [e, dropArea]);
dragEnterRun = true;
dragLeaveRun = false;
me.dom.dropMask.style.display = 'table-cell';
}
};
/**
* Event run on drag leave. This Event runs only from the dropMask
* @param e event
*/
var dragLeave = function (e) {
eventStop(e);
if (config.enable && !dragLeaveRun) {
if (config.dropClass) {
dropArea.classList.remove(config.dropClass);
}
me.triggerEvent('dragLeave', [e, dropArea]);
dragEnterRun = false;
dragLeaveRun = true;
me.dom.dropMask.style.display = 'none';
}
};
/**
* Event run on drag over files
* @param e
*/
var dragOver = function (e) {
eventStop(e);
if (config.enable) {
if (config.dropClass) {
dropArea.classList.add(config.dropClass);
}
me.triggerEvent('dragOver', [e, dropArea]);
}
};
/**
* Event run on drop files
* @param {Event} e
*/
var onDrop = function (e) {
eventStop(e);
if (config.enable) {
me.addFiles(e.dataTransfer.files);//add files
if (config.dropClass) {
dropArea.classList.remove(config.dropClass);
}
me.triggerEvent('drop', [e, this]);
me.dom.dropMask.style.display = 'none';
dragEnterRun = false;
}
};
//add event listener for the drop area
dropArea.addEventListener('dragenter', dragEnter);
me.dom.dropMask.addEventListener('dragleave', dragLeave);
me.dom.dropMask.addEventListener('dragover', dragOver);
me.dom.dropMask.addEventListener('drop', onDrop);
}
return me;
},
/**
* Internal function that runs when a file status has been completed, failed or success
*
* @param fileId the file ID calling the function
* @param msg any error message
* @private
*/
fileCompleted: function (fileId, msg) {
//if all files had been uploaded then exec finish event
var runFinish = true;
var me = this;
var fileObj = me.fileList[fileId];
for (var fid in me.fileList) {
if (me.fileList.hasOwnProperty(fid)) {
var f = me.fileList[fid];
//so if we have any file still not uploaded do not run finish event
if (f.status !== Constants.AX_DONE && f.status !== Constants.AX_ERROR) runFinish = false;
}
}
switch (fileObj.status) {
case Constants.AX_DONE :
me.triggerEvent('finishFile', [fileObj, msg]);
break;
case Constants.AX_ERROR :
me.triggerEvent('errorFile', [fileObj, fileObj.getInfo(), fileObj.name]);
break;
}
//all uploaded files then run final finish event
if (runFinish) {
me.finish();
}
me.slots++; //free slot
},
/**
* Finish function runs when all files are uploaded, trigger events and returns uploaded file names
*/
finish: function () {
var me = this;
me.globalStatus = Constants.AX_DONE;
var fileNames = []; //collect file names in a array
for (var fileId in me.fileList) {
if (me.fileList.hasOwnProperty(fileId)) {
fileNames.push(me.fileList[fileId].name);
}
}
this.triggerEvent('finish', [fileNames, me.fileList]);
},
/**
* Generate a file id for tracking the files in the list
* @returns {string}
*/
generateFileId: function () {
this.fileIndex++;
return 'file_' + this.fileIndex;
},
/**
* Add files to the list from select or from drop
* @param files {Array} DOM object list element
*/
addFiles: function (files) {
var selectedFiles = [];
var me = this;
for (var i = 0; i < files.length; i++) {
var file = files[i];
file.extension = file.name.split('.').pop().toLowerCase();
//check if extension is allowed to be uploaded
//if we have reach the max number of files allowed
//if file size is allowed
var err = me.checkFile(file.name, file.size, file.extension);
//if no errors add file to list
if (err.length === 0) {
var fileId = this.generateFileId();
me.fileList[fileId] = new FileObject(file, fileId, this); //create the file object
//store a reference to the current selected files for the onSelect callback
selectedFiles.push(this.fileList[fileId]);
} else {
//if there are errors call the error event (if defined from the user)
me.triggerEvent('errorFile', [err, file.name]);
}
}
//call the onSelect event, on the selected files
me.triggerEvent('select', [selectedFiles]);
//if AutoStart is enabled then start upload MOVE ON FILES READY
if (me.config.autoStart) {
me.enqueueAll();
}
},
/**
* Checking file if extension is allowed or if this file is exceeding the maximum file number
* @param name name of the file
* @param size file size (0 on old browser)
* @param ext file extension
* @returns {Array} array of error, no errors empty array
*/
checkFile: function (name, size, ext) {
var allowedExtensions = this.config.allowedExtensions;
var fileNumber = Object.keys(this.fileList).length;
var errors = [];
var hasUserError = false;
var maxFileNumber = fileNumber < this.config.maxFiles;
var isAllowedExt = allowedExtensions.indexOf(ext) >= 0 || allowedExtensions.length == 0;
var isSizeAllowed = size <= this.config.maxFileSize;
if (typeof(this.config.validateFile) === 'function') {
hasUserError = this.config.validateFile.call(this, name, ext, size);
}
if (!maxFileNumber) {
console.warn('Error :Maximum files number reached', maxFileNumber);
errors.push({
message: _('Maximum files number reached'),
error: 'MAX_FILES',
param: fileNumber
});
}
if (!isAllowedExt) {
console.warn('Error :Extension not allowed', ext);
errors.push({
message: _('Extension not allowed'),
error: 'ALLOW_EXTENSION',
param: ext
});
}
if (!isSizeAllowed) {
console.warn('Error :File size now allowed', size);
errors.push({message: _('File size now allowed'), error: 'FILE_SIZE', param: size});
}
if (hasUserError) {
errors.push({message: hasUserError, error: 'USER_ERROR', param: ''});
}
return errors;
},
/**
* Function for uploading a single file
* @param fileId {String}
*/
enqueueFile: function (fileId) {
this.uploadQueue.push(this.fileList[fileId]);
this.processQueue();//trigger a process queue if it is not running already
},
/**
* Enqueue all files ready to upload
*/
enqueueAll: function () {
var me = this;
var pending = me.getPendingFiles();
if (pending.length === 0) {
me.triggerEvent('error', ['NO_FILES', Constants.AX_NO_FILES]);
} else if (me.triggerEvent('beforeUpload', [me.fileList]) !== false) {
this.triggerEvent('start', [pending]);
for (var i = 0, len = pending.length; i < len; i++) {
me.uploadQueue.push(pending[i]);
}
me.processQueue();
} else {
me.triggerEvent('error', ['beforeUpload']);
}
},
/**
* Public alias function for starting upload
* @public
*/
startUpload: function () {
this.enqueueAll();
},
/**
* Internal private function for processing the upload queue, uses quotas
*/
processQueue: function () {
var me = this;
if (!me.checkInterval) {
Utils.log('Process queue');
me.checkInterval = setInterval(function () {
Utils.log('Start interval');
if (me.uploadQueue.length === 0) {
clearInterval(me.checkInterval);
me.checkInterval = null;
Utils.log('No more files. Stop timer.');
} else {
me.globalStatus = Constants.AX_UPLOADING;
for (var i = 0; i < me.uploadQueue.length; i++) {
var file = me.uploadQueue[i];
if (me.slots > 0 && file.status === Constants.AX_READY && !file.disabled) {
var fo = me.uploadQueue.shift();
fo.startUpload();//start file upload
me.slots--;
} else {
Utils.log('processQueue:::', file.status, !file.disabled, me.slots);
}
}
}
}, 500);
}
},
/**
* Get the pending files ready for upload
* @returns {Array}
*/
getPendingFiles: function () {
var arr = [];
for (var fileId in this.fileList) {
if (this.fileList.hasOwnProperty(fileId)) {
var f = this.fileList[fileId];
if (f.status === Constants.AX_READY || f.status === Constants.AX_IDLE || f.status === Constants.AX_CHECK) {
arr.push(f);
}
}
}
return arr;
},
/**
* Returns true if the uploading process is still running
* @returns {boolean}
*/
isUploading: function () {
return this.globalStatus === Constants.AX_UPLOADING;
},
/**
* Return true if the uploader status is IDLE
* @returns {boolean}
*/
isIdle: function () {
return this.globalStatus === Constants.AX_IDLE;
},
/**
* Helper function for external use for getting the number of the files
* @returns {boolean}
*/
hasFiles: function () {
return Object.keys(this.fileList).length !== 0;
},
/**
* Internal function called by the file object
* @param file the calling file object
* @param bytes bytes sent to the server
*/
progress: function (file, bytes) {
this.totalUploadedBytes = +bytes;
this.triggerEvent('progress', [this.totalUploadedBytes]);
},
/**
* Removes and stops all the file from the list and destroys them
*/
clearQueue: function () {
for (var fileId in this.fileList) {
if (this.fileList.hasOwnProperty(fileId)) {
this.fileList[fileId].destroy();
}
}
},
/**
* Get the parameter to pass in POST
* Returns a formData element
* @returns {FormData}
*/
getBaseParams: function (file) {
Utils.log('getBaseParams:::called');
//NOTE: all internal params of Real Ajax Uploader starts with ax-
var config = this.config;
var data = new FormData();
//eval file path
var remotePath = config.remotePath;
if (typeof remotePath === 'function') {
remotePath = remotePath.call(this, file);
}
//file data
data.append('ax-file-path', remotePath);
data.append('ax-allow-ext', config.allowedExtensions.join('|'));
data.append('ax-max-file-size', config.maxFileSize);
//thumb data, for generation of thumbs in the server side
data.append('ax-thumbPostfix', config.thumbPostfix);
data.append('ax-thumbPath', config.thumbPath);
data.append('ax-thumbFormat', config.thumbFormat);
data.append('ax-thumbHeight', config.thumbHeight);
data.append('ax-thumbWidth', config.thumbWidth);
//override or not
if (config.checkFileExists || config.overrideFile) {
data.append('ax-override', 1);
}
//check md5 on server side
if (config.md5Check && config.md5Calculate) {
data.append('ax-md5checksum', 1);
}
//send and eval user data
var userData = this.getUserData(config.data, file);
for (var param in userData) {
if (userData.hasOwnProperty(param)) {
data.append(param, userData[param]);
}
}
return data;
},
/**
*
* @param userData {Object}
* @param file
* @returns {*}
*/
getUserData: function (userData, file) {
//send and eval user data
if (typeof userData === 'function') {
userData = userData.call(this, file);
}
if (typeof userData === 'string') {
var decode = userData.split('&');
userData = {};
for (var i = 0; i < decode.length; i++) {
var param = decode[i].split('=');
if (param[0] !== undefined && param[1] !== undefined) {
userData[param[0]] = param[1];
}
}
}
//set a default type
if (typeof userData !== 'object') {
userData = {};
}
return userData;
},