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Overwriting them won't break the upload but can break the way it's displayed. You can overwrite them if you don't like the default behavior. If you just want to add an additional event handler, register it on the dropzone object and don't overwrite those options. */ drop: function(e) { return this.element.classList.remove("dz-drag-hover"); }, dragstart: noop, dragend: function(e) { return this.element.classList.remove("dz-drag-hover"); }, dragenter: function(e) { return this.element.classList.add("dz-drag-hover"); }, dragover: function(e) { return this.element.classList.add("dz-drag-hover"); }, dragleave: function(e) { return this.element.classList.remove("dz-drag-hover"); }, paste: noop, reset: function() { return this.element.classList.remove("dz-started"); }, addedfile: function(file) { var node, removeFileEvent, removeLink, _i, _j, _k, _len, _len1, _len2, _ref, _ref1, _ref2, _results; if (this.element === this.previewsContainer) { this.element.classList.add("dz-started"); } if (this.previewsContainer) { file.previewElement = Dropzone.createElement(this.options.previewTemplate.trim()); file.previewTemplate = file.previewElement; this.previewsContainer.appendChild(file.previewElement); _ref = file.previewElement.querySelectorAll("[data-dz-name]"); for (_i = 0, _len = _ref.length; _i < _len; _i++) { node = _ref[_i]; node.textContent = file.name; } _ref1 = file.previewElement.querySelectorAll("[data-dz-size]"); for (_j = 0, _len1 = _ref1.length; _j < _len1; _j++) { node = _ref1[_j]; node.innerHTML = this.filesize(file.size); } if (this.options.addRemoveLinks) { file._removeLink = Dropzone.createElement("" + this.options.dictRemoveFile + ""); file.previewElement.appendChild(file._removeLink); } removeFileEvent = (function(_this) { return function(e) { e.preventDefault(); e.stopPropagation(); if (file.status === Dropzone.UPLOADING) { return Dropzone.confirm(_this.options.dictCancelUploadConfirmation, function() { return _this.removeFile(file); }); } else { if (_this.options.dictRemoveFileConfirmation) { return Dropzone.confirm(_this.options.dictRemoveFileConfirmation, function() { return _this.removeFile(file); }); } else { return _this.removeFile(file); } } }; })(this); _ref2 = file.previewElement.querySelectorAll("[data-dz-remove]"); _results = []; for (_k = 0, _len2 = _ref2.length; _k < _len2; _k++) { removeLink = _ref2[_k]; _results.push(removeLink.addEventListener("click", removeFileEvent)); } return _results; } }, removedfile: function(file) { var _ref; if (file.previewElement) { if ((_ref = file.previewElement) != null) { _ref.parentNode.removeChild(file.previewElement); } } return this._updateMaxFilesReachedClass(); }, thumbnail: function(file, dataUrl) { var thumbnailElement, _i, _len, _ref, _results; if (file.previewElement) { file.previewElement.classList.remove("dz-file-preview"); file.previewElement.classList.add("dz-image-preview"); _ref = file.previewElement.querySelectorAll("[data-dz-thumbnail]"); _results = []; for (_i = 0, _len = _ref.length; _i < _len; _i++) { thumbnailElement = _ref[_i]; thumbnailElement.alt = file.name; _results.push(thumbnailElement.src = dataUrl); } return _results; } }, error: function(file, message) { var node, _i, _len, _ref, _results; if (file.previewElement) { file.previewElement.classList.add("dz-error"); if (typeof message !== "String" && message.error) { message = message.error; } _ref = file.previewElement.querySelectorAll("[data-dz-errormessage]"); _results = []; for (_i = 0, _len = _ref.length; _i < _len; _i++) { node = _ref[_i]; _results.push(node.textContent = message); } return _results; } }, errormultiple: noop, processing: function(file) { if (file.previewElement) { file.previewElement.classList.add("dz-processing"); if (file._removeLink) { return file._removeLink.textContent = this.options.dictCancelUpload; } } }, processingmultiple: noop, uploadprogress: function(file, progress, bytesSent) { var node, _i, _len, _ref, _results; if (file.previewElement) { _ref = file.previewElement.querySelectorAll("[data-dz-uploadprogress]"); _results = []; for (_i = 0, _len = _ref.length; _i < _len; _i++) { node = _ref[_i]; _results.push(node.style.width = "" + progress + "%"); } return _results; } }, totaluploadprogress: noop, sending: noop, sendingmultiple: noop, success: function(file) { if (file.previewElement) { return file.previewElement.classList.add("dz-success"); } }, successmultiple: noop, canceled: function(file) { return this.emit("error", file, "Upload canceled."); }, canceledmultiple: noop, complete: function(file) { if (file._removeLink) { return file._removeLink.textContent = this.options.dictRemoveFile; } }, completemultiple: noop, maxfilesexceeded: noop, maxfilesreached: noop, previewTemplate: "
\n
\n
\n
\n \n
\n
\n
✔
\n
✘
\n
\n
" }; extend = function() { var key, object, objects, target, val, _i, _len; target = arguments[0], objects = 2 <= arguments.length ? __slice.call(arguments, 1) : []; for (_i = 0, _len = objects.length; _i < _len; _i++) { object = objects[_i]; for (key in object) { val = object[key]; target[key] = val; } } return target; }; function Dropzone(element, options) { var elementOptions, fallback, _ref; this.element = element; this.version = Dropzone.version; this.defaultOptions.previewTemplate = this.defaultOptions.previewTemplate.replace(/\n*/g, ""); this.clickableElements = []; this.listeners = []; this.files = []; if (typeof this.element === "string") { this.element = document.querySelector(this.element); } if (!(this.element && (this.element.nodeType != null))) { throw new Error("Invalid dropzone element."); } if (this.element.dropzone) { throw new Error("Dropzone already attached."); } Dropzone.instances.push(this); this.element.dropzone = this; elementOptions = (_ref = Dropzone.optionsForElement(this.element)) != null ? _ref : {}; this.options = extend({}, this.defaultOptions, elementOptions, options != null ? options : {}); if (this.options.forceFallback || !Dropzone.isBrowserSupported()) { return this.options.fallback.call(this); } if (this.options.url == null) { this.options.url = this.element.getAttribute("action"); } if (!this.options.url) { throw new Error("No URL provided."); } if (this.options.acceptedFiles && this.options.acceptedMimeTypes) { throw new Error("You can't provide both 'acceptedFiles' and 'acceptedMimeTypes'. 'acceptedMimeTypes' is deprecated."); } if (this.options.acceptedMimeTypes) { this.options.acceptedFiles = this.options.acceptedMimeTypes; delete this.options.acceptedMimeTypes; } this.options.method = this.options.method.toUpperCase(); if ((fallback = this.getExistingFallback()) && fallback.parentNode) { fallback.parentNode.removeChild(fallback); } if (this.options.previewsContainer !== false) { if (this.options.previewsContainer) { this.previewsContainer = Dropzone.getElement(this.options.previewsContainer, "previewsContainer"); } else { this.previewsContainer = this.element; } } if (this.options.clickable) { if (this.options.clickable === true) { this.clickableElements = [this.element]; } else { this.clickableElements = Dropzone.getElements(this.options.clickable, "clickable"); } } this.init(); } Dropzone.prototype.getAcceptedFiles = function() { var file, _i, _len, _ref, _results; _ref = this.files; _results = []; for (_i = 0, _len = _ref.length; _i < _len; _i++) { file = _ref[_i]; if (file.accepted) { _results.push(file); } } return _results; }; Dropzone.prototype.getRejectedFiles = function() { var file, _i, _len, _ref, _results; _ref = this.files; _results = []; for (_i = 0, _len = _ref.length; _i < _len; _i++) { file = _ref[_i]; if (!file.accepted) { _results.push(file); } } return _results; }; Dropzone.prototype.getFilesWithStatus = function(status) { var file, _i, _len, _ref, _results; _ref = this.files; _results = []; for (_i = 0, _len = _ref.length; _i < _len; _i++) { file = _ref[_i]; if (file.status === status) { _results.push(file); } } return _results; }; Dropzone.prototype.getQueuedFiles = function() { return this.getFilesWithStatus(Dropzone.QUEUED); }; Dropzone.prototype.getUploadingFiles = function() { return this.getFilesWithStatus(Dropzone.UPLOADING); }; Dropzone.prototype.getActiveFiles = function() { var file, _i, _len, _ref, _results; _ref = this.files; _results = []; for (_i = 0, _len = _ref.length; _i < _len; _i++) { file = _ref[_i]; if (file.status === Dropzone.UPLOADING || file.status === Dropzone.QUEUED) { _results.push(file); } } return _results; }; Dropzone.prototype.init = function() { var eventName, noPropagation, setupHiddenFileInput, _i, _len, _ref, _ref1; if (this.element.tagName === "form") { this.element.setAttribute("enctype", "multipart/form-data"); } if (this.element.classList.contains("dropzone") && !this.element.querySelector(".dz-message")) { this.element.appendChild(Dropzone.createElement("
" + this.options.dictDefaultMessage + "
")); } if (this.clickableElements.length) { setupHiddenFileInput = (function(_this) { return function() { if (_this.hiddenFileInput) { document.body.removeChild(_this.hiddenFileInput); } _this.hiddenFileInput = document.createElement("input"); _this.hiddenFileInput.setAttribute("type", "file"); if ((_this.options.maxFiles == null) || _this.options.maxFiles > 1) { _this.hiddenFileInput.setAttribute("multiple", "multiple"); } _this.hiddenFileInput.className = "dz-hidden-input"; if (_this.options.acceptedFiles != null) { _this.hiddenFileInput.setAttribute("accept", _this.options.acceptedFiles); } _this.hiddenFileInput.style.visibility = "hidden"; _this.hiddenFileInput.style.position = "absolute"; _this.hiddenFileInput.style.top = "0"; _this.hiddenFileInput.style.left = "0"; _this.hiddenFileInput.style.height = "0"; _this.hiddenFileInput.style.width = "0"; document.body.appendChild(_this.hiddenFileInput); return _this.hiddenFileInput.addEventListener("change", function() { var file, files, _i, _len; files = _this.hiddenFileInput.files; if (files.length) { for (_i = 0, _len = files.length; _i < _len; _i++) { file = files[_i]; _this.addFile(file); } } return setupHiddenFileInput(); }); }; })(this); setupHiddenFileInput(); } this.URL = (_ref = window.URL) != null ? _ref : window.webkitURL; _ref1 = this.events; for (_i = 0, _len = _ref1.length; _i < _len; _i++) { eventName = _ref1[_i]; this.on(eventName, this.options[eventName]); } this.on("uploadprogress", (function(_this) { return function() { return _this.updateTotalUploadProgress(); }; })(this)); this.on("removedfile", (function(_this) { return function() { return _this.updateTotalUploadProgress(); }; })(this)); this.on("canceled", (function(_this) { return function(file) { return _this.emit("complete", file); }; })(this)); this.on("complete", (function(_this) { return function(file) { if (_this.getUploadingFiles().length === 0 && _this.getQueuedFiles().length === 0) { return setTimeout((function() { return _this.emit("queuecomplete"); }), 0); } }; })(this)); noPropagation = function(e) { e.stopPropagation(); if (e.preventDefault) { return e.preventDefault(); } else { return e.returnValue = false; } }; this.listeners = [ { element: this.element, events: { "dragstart": (function(_this) { return function(e) { return _this.emit("dragstart", e); }; })(this), "dragenter": (function(_this) { return function(e) { noPropagation(e); return _this.emit("dragenter", e); }; })(this), "dragover": (function(_this) { return function(e) { var efct; try { efct = e.dataTransfer.effectAllowed; } catch (_error) {} e.dataTransfer.dropEffect = 'move' === efct || 'linkMove' === efct ? 'move' : 'copy'; noPropagation(e); return _this.emit("dragover", e); }; })(this), "dragleave": (function(_this) { return function(e) { return _this.emit("dragleave", e); }; })(this), "drop": (function(_this) { return function(e) { noPropagation(e); return _this.drop(e); }; })(this), "dragend": (function(_this) { return function(e) { return _this.emit("dragend", e); }; })(this) } } ]; this.clickableElements.forEach((function(_this) { return function(clickableElement) { return _this.listeners.push({ element: clickableElement, events: { "click": function(evt) { if ((clickableElement !== _this.element) || (evt.target === _this.element || Dropzone.elementInside(evt.target, _this.element.querySelector(".dz-message")))) { return _this.hiddenFileInput.click(); } } } }); }; })(this)); this.enable(); return this.options.init.call(this); }; Dropzone.prototype.destroy = function() { var _ref; this.disable(); this.removeAllFiles(true); if ((_ref = this.hiddenFileInput) != null ? _ref.parentNode : void 0) { this.hiddenFileInput.parentNode.removeChild(this.hiddenFileInput); this.hiddenFileInput = null; } delete this.element.dropzone; return Dropzone.instances.splice(Dropzone.instances.indexOf(this), 1); }; Dropzone.prototype.updateTotalUploadProgress = function() { var activeFiles, file, totalBytes, totalBytesSent, totalUploadProgress, _i, _len, _ref; totalBytesSent = 0; totalBytes = 0; activeFiles = this.getActiveFiles(); if (activeFiles.length) { _ref = this.getActiveFiles(); for (_i = 0, _len = _ref.length; _i < _len; _i++) { file = _ref[_i]; totalBytesSent += file.upload.bytesSent; totalBytes += file.upload.total; } totalUploadProgress = 100 * totalBytesSent / totalBytes; } else { totalUploadProgress = 100; } return this.emit("totaluploadprogress", totalUploadProgress, totalBytes, totalBytesSent); }; Dropzone.prototype._getParamName = function(n) { if (typeof this.options.paramName === "function") { return this.options.paramName(n); } else { return "" + this.options.paramName + (this.options.uploadMultiple ? "[" + n + "]" : ""); } }; Dropzone.prototype.getFallbackForm = function() { var existingFallback, fields, fieldsString, form; if (existingFallback = this.getExistingFallback()) { return existingFallback; } fieldsString = "
"; if (this.options.dictFallbackText) { fieldsString += "

" + this.options.dictFallbackText + "

"; } fieldsString += "
"; fields = Dropzone.createElement(fieldsString); if (this.element.tagName !== "FORM") { form = Dropzone.createElement("
"); form.appendChild(fields); } else { this.element.setAttribute("enctype", "multipart/form-data"); this.element.setAttribute("method", this.options.method); } return form != null ? form : fields; }; Dropzone.prototype.getExistingFallback = function() { var fallback, getFallback, tagName, _i, _len, _ref; getFallback = function(elements) { var el, _i, _len; for (_i = 0, _len = elements.length; _i < _len; _i++) { el = elements[_i]; if (/(^| )fallback($| )/.test(el.className)) { return el; } } }; _ref = ["div", "form"]; for (_i = 0, _len = _ref.length; _i < _len; _i++) { tagName = _ref[_i]; if (fallback = getFallback(this.element.getElementsByTagName(tagName))) { return fallback; } } }; Dropzone.prototype.setupEventListeners = function() { var elementListeners, event, listener, _i, _len, _ref, _results; _ref = this.listeners; _results = []; for (_i = 0, _len = _ref.length; _i < _len; _i++) { elementListeners = _ref[_i]; _results.push((function() { var _ref1, _results1; _ref1 = elementListeners.events; _results1 = []; for (event in _ref1) { listener = _ref1[event]; _results1.push(elementListeners.element.addEventListener(event, listener, false)); } return _results1; })()); } return _results; }; Dropzone.prototype.removeEventListeners = function() { var elementListeners, event, listener, _i, _len, _ref, _results; _ref = this.listeners; _results = []; for (_i = 0, _len = _ref.length; _i < _len; _i++) { elementListeners = _ref[_i]; _results.push((function() { var _ref1, _results1; _ref1 = elementListeners.events; _results1 = []; for (event in _ref1) { listener = _ref1[event]; _results1.push(elementListeners.element.removeEventListener(event, listener, false)); } return _results1; })()); } return _results; }; Dropzone.prototype.disable = function() { var file, _i, _len, _ref, _results; this.clickableElements.forEach(function(element) { return element.classList.remove("dz-clickable"); }); this.removeEventListeners(); _ref = this.files; _results = []; for (_i = 0, _len = _ref.length; _i < _len; _i++) { file = _ref[_i]; _results.push(this.cancelUpload(file)); } return _results; }; Dropzone.prototype.enable = function() { this.clickableElements.forEach(function(element) { return element.classList.add("dz-clickable"); }); return this.setupEventListeners(); }; Dropzone.prototype.filesize = function(size) { var string; if (size >= 1024 * 1024 * 1024 * 1024 / 10) { size = size / (1024 * 1024 * 1024 * 1024 / 10); string = "TiB"; } else if (size >= 1024 * 1024 * 1024 / 10) { size = size / (1024 * 1024 * 1024 / 10); string = "GiB"; } else if (size >= 1024 * 1024 / 10) { size = size / (1024 * 1024 / 10); string = "MiB"; } else if (size >= 1024 / 10) { size = size / (1024 / 10); string = "KiB"; } else { size = size * 10; string = "b"; } return "" + (Math.round(size) / 10) + " " + string; }; Dropzone.prototype._updateMaxFilesReachedClass = function() { if ((this.options.maxFiles != null) && this.getAcceptedFiles().length >= this.options.maxFiles) { if (this.getAcceptedFiles().length === this.options.maxFiles) { this.emit('maxfilesreached', this.files); } return this.element.classList.add("dz-max-files-reached"); } else { return this.element.classList.remove("dz-max-files-reached"); } }; Dropzone.prototype.drop = function(e) { var files, items; if (!e.dataTransfer) { return; } this.emit("drop", e); files = e.dataTransfer.files; if (files.length) { items = e.dataTransfer.items; if (items && items.length && (items[0].webkitGetAsEntry != null)) { this._addFilesFromItems(items); } else { this.handleFiles(files); } } }; Dropzone.prototype.paste = function(e) { var items, _ref; if ((e != null ? (_ref = e.clipboardData) != null ? _ref.items : void 0 : void 0) == null) { return; } this.emit("paste", e); items = e.clipboardData.items; if (items.length) { return this._addFilesFromItems(items); } }; Dropzone.prototype.handleFiles = function(files) { var file, _i, _len, _results; _results = []; for (_i = 0, _len = files.length; _i < _len; _i++) { file = files[_i]; _results.push(this.addFile(file)); } return _results; }; Dropzone.prototype._addFilesFromItems = function(items) { var entry, item, _i, _len, _results; _results = []; for (_i = 0, _len = items.length; _i < _len; _i++) { item = items[_i]; if ((item.webkitGetAsEntry != null) && (entry = item.webkitGetAsEntry())) { if (entry.isFile) { _results.push(this.addFile(item.getAsFile())); } else if (entry.isDirectory) { _results.push(this._addFilesFromDirectory(entry, entry.name)); } else { _results.push(void 0); } } else if (item.getAsFile != null) { if ((item.kind == null) || item.kind === "file") { _results.push(this.addFile(item.getAsFile())); } else { _results.push(void 0); } } else { _results.push(void 0); } } return _results; }; Dropzone.prototype._addFilesFromDirectory = function(directory, path) { var dirReader, entriesReader; dirReader = directory.createReader(); entriesReader = (function(_this) { return function(entries) { var entry, _i, _len; for (_i = 0, _len = entries.length; _i < _len; _i++) { entry = entries[_i]; if (entry.isFile) { entry.file(function(file) { if (_this.options.ignoreHiddenFiles && file.name.substring(0, 1) === '.') { return; } file.fullPath = "" + path + "/" + file.name; return _this.addFile(file); }); } else if (entry.isDirectory) { _this._addFilesFromDirectory(entry, "" + path + "/" + entry.name); } } }; })(this); return dirReader.readEntries(entriesReader, function(error) { return typeof console !== "undefined" && console !== null ? typeof console.log === "function" ? console.log(error) : void 0 : void 0; }); }; Dropzone.prototype.accept = function(file, done) { if (file.size > this.options.maxFilesize * 1024 * 1024) { return done(this.options.dictFileTooBig.replace("{{filesize}}", Math.round(file.size / 1024 / 10.24) / 100).replace("{{maxFilesize}}", this.options.maxFilesize)); } else if (!Dropzone.isValidFile(file, this.options.acceptedFiles)) { return done(this.options.dictInvalidFileType); } else if ((this.options.maxFiles != null) && this.getAcceptedFiles().length >= this.options.maxFiles) { done(this.options.dictMaxFilesExceeded.replace("{{maxFiles}}", this.options.maxFiles)); return this.emit("maxfilesexceeded", file); } else { return this.options.accept.call(this, file, done); } }; Dropzone.prototype.addFile = function(file) { file.upload = { progress: 0, total: file.size, bytesSent: 0 }; this.files.push(file); file.status = Dropzone.ADDED; this.emit("addedfile", file); this._enqueueThumbnail(file); return this.accept(file, (function(_this) { return function(error) { if (error) { file.accepted = false; _this._errorProcessing([file], error); } else { file.accepted = true; if (_this.options.autoQueue) { _this.enqueueFile(file); } } return _this._updateMaxFilesReachedClass(); }; })(this)); }; Dropzone.prototype.enqueueFiles = function(files) { var file, _i, _len; for (_i = 0, _len = files.length; _i < _len; _i++) { file = files[_i]; this.enqueueFile(file); } return null; }; Dropzone.prototype.enqueueFile = function(file) { if (file.status === Dropzone.ADDED && file.accepted === true) { file.status = Dropzone.QUEUED; if (this.options.autoProcessQueue) { return setTimeout(((function(_this) { return function() { return _this.processQueue(); }; })(this)), 0); } } else { throw new Error("This file can't be queued because it has already been processed or was rejected."); } }; Dropzone.prototype._thumbnailQueue = []; Dropzone.prototype._processingThumbnail = false; Dropzone.prototype._enqueueThumbnail = function(file) { if (this.options.createImageThumbnails && file.type.match(/image.*/) && file.size <= this.options.maxThumbnailFilesize * 1024 * 1024) { this._thumbnailQueue.push(file); return setTimeout(((function(_this) { return function() { return _this._processThumbnailQueue(); }; })(this)), 0); } }; Dropzone.prototype._processThumbnailQueue = function() { if (this._processingThumbnail || this._thumbnailQueue.length === 0) { return; } this._processingThumbnail = true; return this.createThumbnail(this._thumbnailQueue.shift(), (function(_this) { return function() { _this._processingThumbnail = false; return _this._processThumbnailQueue(); }; })(this)); }; Dropzone.prototype.removeFile = function(file) { if (file.status === Dropzone.UPLOADING) { this.cancelUpload(file); } this.files = without(this.files, file); this.emit("removedfile", file); if (this.files.length === 0) { return this.emit("reset"); } }; Dropzone.prototype.removeAllFiles = function(cancelIfNecessary) { var file, _i, _len, _ref; if (cancelIfNecessary == null) { cancelIfNecessary = false; } _ref = this.files.slice(); for (_i = 0, _len = _ref.length; _i < _len; _i++) { file = _ref[_i]; if (file.status !== Dropzone.UPLOADING || cancelIfNecessary) { this.removeFile(file); } } return null; }; Dropzone.prototype.createThumbnail = function(file, callback) { var fileReader; fileReader = new FileReader; fileReader.onload = (function(_this) { return function() { var img; img = document.createElement("img"); img.onload = function() { var canvas, ctx, resizeInfo, thumbnail, _ref, _ref1, _ref2, _ref3; file.width = img.width; file.height = img.height; resizeInfo = _this.options.resize.call(_this, file); if (resizeInfo.trgWidth == null) { resizeInfo.trgWidth = resizeInfo.optWidth; } if (resizeInfo.trgHeight == null) { resizeInfo.trgHeight = resizeInfo.optHeight; } canvas = document.createElement("canvas"); ctx = canvas.getContext("2d"); canvas.width = resizeInfo.trgWidth; canvas.height = resizeInfo.trgHeight; drawImageIOSFix(ctx, img, (_ref = resizeInfo.srcX) != null ? _ref : 0, (_ref1 = resizeInfo.srcY) != null ? _ref1 : 0, resizeInfo.srcWidth, resizeInfo.srcHeight, (_ref2 = resizeInfo.trgX) != null ? _ref2 : 0, (_ref3 = resizeInfo.trgY) != null ? _ref3 : 0, resizeInfo.trgWidth, resizeInfo.trgHeight); thumbnail = canvas.toDataURL("image/png"); _this.emit("thumbnail", file, thumbnail); if (callback != null) { return callback(); } }; return img.src = fileReader.result; }; })(this); return fileReader.readAsDataURL(file); }; Dropzone.prototype.processQueue = function() { var i, parallelUploads, processingLength, queuedFiles; parallelUploads = this.options.parallelUploads; processingLength = this.getUploadingFiles().length; i = processingLength; if (processingLength >= parallelUploads) { return; } queuedFiles = this.getQueuedFiles(); if (!(queuedFiles.length > 0)) { return; } if (this.options.uploadMultiple) { return this.processFiles(queuedFiles.slice(0, parallelUploads - processingLength)); } else { while (i < parallelUploads) { if (!queuedFiles.length) { return; } this.processFile(queuedFiles.shift()); i++; } } }; Dropzone.prototype.processFile = function(file) { return this.processFiles([file]); }; Dropzone.prototype.processFiles = function(files) { var file, _i, _len; for (_i = 0, _len = files.length; _i < _len; _i++) { file = files[_i]; file.processing = true; file.status = Dropzone.UPLOADING; this.emit("processing", file); } if (this.options.uploadMultiple) { this.emit("processingmultiple", files); } return this.uploadFiles(files); }; Dropzone.prototype._getFilesWithXhr = function(xhr) { var file, files; return files = (function() { var _i, _len, _ref, _results; _ref = this.files; _results = []; for (_i = 0, _len = _ref.length; _i < _len; _i++) { file = _ref[_i]; if (file.xhr === xhr) { _results.push(file); } } return _results; }).call(this); }; Dropzone.prototype.cancelUpload = function(file) { var groupedFile, groupedFiles, _i, _j, _len, _len1, _ref; if (file.status === Dropzone.UPLOADING) { groupedFiles = this._getFilesWithXhr(file.xhr); for (_i = 0, _len = groupedFiles.length; _i < _len; _i++) { groupedFile = groupedFiles[_i]; groupedFile.status = Dropzone.CANCELED; } file.xhr.abort(); for (_j = 0, _len1 = groupedFiles.length; _j < _len1; _j++) { groupedFile = groupedFiles[_j]; this.emit("canceled", groupedFile); } if (this.options.uploadMultiple) { this.emit("canceledmultiple", groupedFiles); } } else if ((_ref = file.status) === Dropzone.ADDED || _ref === Dropzone.QUEUED) { file.status = Dropzone.CANCELED; this.emit("canceled", file); if (this.options.uploadMultiple) { this.emit("canceledmultiple", [file]); } } if (this.options.autoProcessQueue) { return this.processQueue(); } }; Dropzone.prototype.uploadFile = function(file) { return this.uploadFiles([file]); }; Dropzone.prototype.uploadFiles = function(files) { var file, formData, handleError, headerName, headerValue, headers, i, input, inputName, inputType, key, option, progressObj, response, updateProgress, value, xhr, _i, _j, _k, _l, _len, _len1, _len2, _len3, _m, _ref, _ref1, _ref2, _ref3, _ref4, _ref5; xhr = new XMLHttpRequest(); for (_i = 0, _len = files.length; _i < _len; _i++) { file = files[_i]; file.xhr = xhr; } xhr.open(this.options.method, this.options.url, true); xhr.withCredentials = !!this.options.withCredentials; response = null; handleError = (function(_this) { return function() { var _j, _len1, _results; _results = []; for (_j = 0, _len1 = files.length; _j < _len1; _j++) { file = files[_j]; _results.push(_this._errorProcessing(files, response || _this.options.dictResponseError.replace("{{statusCode}}", xhr.status), xhr)); } return _results; }; })(this); updateProgress = (function(_this) { return function(e) { var allFilesFinished, progress, _j, _k, _l, _len1, _len2, _len3, _results; if (e != null) { progress = 100 * e.loaded / e.total; for (_j = 0, _len1 = files.length; _j < _len1; _j++) { file = files[_j]; file.upload = { progress: progress, total: e.total, bytesSent: e.loaded }; } } else { allFilesFinished = true; progress = 100; for (_k = 0, _len2 = files.length; _k < _len2; _k++) { file = files[_k]; if (!(file.upload.progress === 100 && file.upload.bytesSent === file.upload.total)) { allFilesFinished = false; } file.upload.progress = progress; file.upload.bytesSent = file.upload.total; } if (allFilesFinished) { return; } } _results = []; for (_l = 0, _len3 = files.length; _l < _len3; _l++) { file = files[_l]; _results.push(_this.emit("uploadprogress", file, progress, file.upload.bytesSent)); } return _results; }; })(this); xhr.onload = (function(_this) { return function(e) { var _ref; if (files[0].status === Dropzone.CANCELED) { return; } if (xhr.readyState !== 4) { return; } response = xhr.responseText; if (xhr.getResponseHeader("content-type") && ~xhr.getResponseHeader("content-type").indexOf("application/json")) { try { response = JSON.parse(response); } catch (_error) { e = _error; response = "Invalid JSON response from server."; } } updateProgress(); if (!((200 <= (_ref = xhr.status) && _ref < 300))) { return handleError(); } else { return _this._finished(files, response, e); } }; })(this); xhr.onerror = (function(_this) { return function() { if (files[0].status === Dropzone.CANCELED) { return; } return handleError(); }; })(this); progressObj = (_ref = xhr.upload) != null ? _ref : xhr; progressObj.onprogress = updateProgress; headers = { "Accept": "application/json", "Cache-Control": "no-cache", "X-Requested-With": "XMLHttpRequest" }; if (this.options.headers) { extend(headers, this.options.headers); } for (headerName in headers) { headerValue = headers[headerName]; xhr.setRequestHeader(headerName, headerValue); } formData = new FormData(); if (this.options.params) { _ref1 = this.options.params; for (key in _ref1) { value = _ref1[key]; formData.append(key, value); } } for (_j = 0, _len1 = files.length; _j < _len1; _j++) { file = files[_j]; this.emit("sending", file, xhr, formData); } if (this.options.uploadMultiple) { this.emit("sendingmultiple", files, xhr, formData); } if (this.element.tagName === "FORM") { _ref2 = this.element.querySelectorAll("input, textarea, select, button"); for (_k = 0, _len2 = _ref2.length; _k < _len2; _k++) { input = _ref2[_k]; inputName = input.getAttribute("name"); inputType = input.getAttribute("type"); if (input.tagName === "SELECT" && input.hasAttribute("multiple")) { _ref3 = input.options; for (_l = 0, _len3 = _ref3.length; _l < _len3; _l++) { option = _ref3[_l]; if (option.selected) { formData.append(inputName, option.value); } } } else if (!inputType || ((_ref4 = inputType.toLowerCase()) !== "checkbox" && _ref4 !== "radio") || input.checked) { formData.append(inputName, input.value); } } } for (i = _m = 0, _ref5 = files.length - 1; 0 <= _ref5 ? _m <= _ref5 : _m >= _ref5; i = 0 <= _ref5 ? ++_m : --_m) { formData.append(this._getParamName(i), files[i], files[i].name); } return xhr.send(formData); }; Dropzone.prototype._finished = function(files, responseText, e) { var file, _i, _len; for (_i = 0, _len = files.length; _i < _len; _i++) { file = files[_i]; file.status = Dropzone.SUCCESS; this.emit("success", file, responseText, e); this.emit("complete", file); } if (this.options.uploadMultiple) { this.emit("successmultiple", files, responseText, e); this.emit("completemultiple", files); } if (this.options.autoProcessQueue) { return this.processQueue(); } }; Dropzone.prototype._errorProcessing = function(files, message, xhr) { var file, _i, _len; for (_i = 0, _len = files.length; _i < _len; _i++) { file = files[_i]; file.status = Dropzone.ERROR; this.emit("error", file, message, xhr); this.emit("complete", file); } if (this.options.uploadMultiple) { this.emit("errormultiple", files, message, xhr); this.emit("completemultiple", files); } if (this.options.autoProcessQueue) { return this.processQueue(); } }; return Dropzone; })(Em); Dropzone.version = "3.10.2"; Dropzone.options = {}; Dropzone.optionsForElement = function(element) { if (element.getAttribute("id")) { return Dropzone.options[camelize(element.getAttribute("id"))]; } else { return void 0; } }; Dropzone.instances = []; Dropzone.forElement = function(element) { if (typeof element === "string") { element = document.querySelector(element); } if ((element != null ? element.dropzone : void 0) == null) { throw new Error("No Dropzone found for given element. This is probably because you're trying to access it before Dropzone had the time to initialize. Use the `init` option to setup any additional observers on your Dropzone."); } return element.dropzone; }; Dropzone.autoDiscover = true; Dropzone.discover = function() { var checkElements, dropzone, dropzones, _i, _len, _results; if (document.querySelectorAll) { dropzones = document.querySelectorAll(".dropzone"); } else { dropzones = []; checkElements = function(elements) { var el, _i, _len, _results; _results = []; for (_i = 0, _len = elements.length; _i < _len; _i++) { el = elements[_i]; if (/(^| )dropzone($| )/.test(el.className)) { _results.push(dropzones.push(el)); } else { _results.push(void 0); } } return _results; }; checkElements(document.getElementsByTagName("div")); checkElements(document.getElementsByTagName("form")); } _results = []; for (_i = 0, _len = dropzones.length; _i < _len; _i++) { dropzone = dropzones[_i]; if (Dropzone.optionsForElement(dropzone) !== false) { _results.push(new Dropzone(dropzone)); } else { _results.push(void 0); } } return _results; }; Dropzone.blacklistedBrowsers = [/opera.*Macintosh.*version\/12/i]; Dropzone.isBrowserSupported = function() { var capableBrowser, regex, _i, _len, _ref; capableBrowser = true; if (window.File && window.FileReader && window.FileList && window.Blob && window.FormData && document.querySelector) { if (!("classList" in document.createElement("a"))) { capableBrowser = false; } else { _ref = Dropzone.blacklistedBrowsers; for (_i = 0, _len = _ref.length; _i < _len; _i++) { regex = _ref[_i]; if (regex.test(navigator.userAgent)) { capableBrowser = false; continue; } } } } else { capableBrowser = false; } return capableBrowser; }; without = function(list, rejectedItem) { var item, _i, _len, _results; _results = []; for (_i = 0, _len = list.length; _i < _len; _i++) { item = list[_i]; if (item !== rejectedItem) { _results.push(item); } } return _results; }; camelize = function(str) { return str.replace(/[\-_](\w)/g, function(match) { return match.charAt(1).toUpperCase(); }); }; Dropzone.createElement = function(string) { var div; div = document.createElement("div"); div.innerHTML = string; return div.childNodes[0]; }; Dropzone.elementInside = function(element, container) { if (element === container) { return true; } while (element = element.parentNode) { if (element === container) { return true; } } return false; }; Dropzone.getElement = function(el, name) { var element; if (typeof el === "string") { element = document.querySelector(el); } else if (el.nodeType != null) { element = el; } if (element == null) { throw new Error("Invalid `" + name + "` option provided. Please provide a CSS selector or a plain HTML element."); } return element; }; Dropzone.getElements = function(els, name) { var e, el, elements, _i, _j, _len, _len1, _ref; if (els instanceof Array) { elements = []; try { for (_i = 0, _len = els.length; _i < _len; _i++) { el = els[_i]; elements.push(this.getElement(el, name)); } } catch (_error) { e = _error; elements = null; } } else if (typeof els === "string") { elements = []; _ref = document.querySelectorAll(els); for (_j = 0, _len1 = _ref.length; _j < _len1; _j++) { el = _ref[_j]; elements.push(el); } } else if (els.nodeType != null) { elements = [els]; } if (!((elements != null) && elements.length)) { throw new Error("Invalid `" + name + "` option provided. Please provide a CSS selector, a plain HTML element or a list of those."); } return elements; }; Dropzone.confirm = function(question, accepted, rejected) { if (window.confirm(question)) { return accepted(); } else if (rejected != null) { return rejected(); } }; Dropzone.isValidFile = function(file, acceptedFiles) { var baseMimeType, mimeType, validType, _i, _len; if (!acceptedFiles) { return true; } acceptedFiles = acceptedFiles.split(","); mimeType = file.type; baseMimeType = mimeType.replace(/\/.*$/, ""); for (_i = 0, _len = acceptedFiles.length; _i < _len; _i++) { validType = acceptedFiles[_i]; validType = validType.trim(); if (validType.charAt(0) === ".") { if (file.name.toLowerCase().indexOf(validType.toLowerCase(), file.name.length - validType.length) !== -1) { return true; } } else if (/\/\*$/.test(validType)) { if (baseMimeType === validType.replace(/\/.*$/, "")) { return true; } } else { if (mimeType === validType) { return true; } } } return false; }; if (typeof jQuery !== "undefined" && jQuery !== null) { jQuery.fn.dropzone = function(options) { return this.each(function() { return new Dropzone(this, options); }); }; } if (typeof module !== "undefined" && module !== null) { module.exports = Dropzone; } else { window.Dropzone = Dropzone; } Dropzone.ADDED = "added"; Dropzone.QUEUED = "queued"; Dropzone.ACCEPTED = Dropzone.QUEUED; Dropzone.UPLOADING = "uploading"; Dropzone.PROCESSING = Dropzone.UPLOADING; Dropzone.CANCELED = "canceled"; Dropzone.ERROR = "error"; Dropzone.SUCCESS = "success"; /* Bugfix for iOS 6 and 7 Source: http://stackoverflow.com/questions/11929099/html5-canvas-drawimage-ratio-bug-ios based on the work of https://github.com/stomita/ios-imagefile-megapixel */ detectVerticalSquash = function(img) { var alpha, canvas, ctx, data, ey, ih, iw, py, ratio, sy; iw = img.naturalWidth; ih = img.naturalHeight; canvas = document.createElement("canvas"); canvas.width = 1; canvas.height = ih; ctx = canvas.getContext("2d"); ctx.drawImage(img, 0, 0); data = ctx.getImageData(0, 0, 1, ih).data; sy = 0; ey = ih; py = ih; while (py > sy) { alpha = data[(py - 1) * 4 + 3]; if (alpha === 0) { ey = py; } else { sy = py; } py = (ey + sy) >> 1; } ratio = py / ih; if (ratio === 0) { return 1; } else { return ratio; } }; drawImageIOSFix = function(ctx, img, sx, sy, sw, sh, dx, dy, dw, dh) { var vertSquashRatio; vertSquashRatio = detectVerticalSquash(img); return ctx.drawImage(img, sx, sy, sw, sh, dx, dy, dw, dh / vertSquashRatio); }; /* * contentloaded.js * * Author: Diego Perini (diego.perini at gmail.com) * Summary: cross-browser wrapper for DOMContentLoaded * Updated: 20101020 * License: MIT * Version: 1.2 * * URL: * http://javascript.nwbox.com/ContentLoaded/ * http://javascript.nwbox.com/ContentLoaded/MIT-LICENSE */ contentLoaded = function(win, fn) { var add, doc, done, init, poll, pre, rem, root, top; done = false; top = true; doc = win.document; root = doc.documentElement; add = (doc.addEventListener ? "addEventListener" : "attachEvent"); rem = (doc.addEventListener ? "removeEventListener" : "detachEvent"); pre = (doc.addEventListener ? "" : "on"); init = function(e) { if (e.type === "readystatechange" && doc.readyState !== "complete") { return; } (e.type === "load" ? win : doc)[rem](pre + e.type, init, false); if (!done && (done = true)) { return fn.call(win, e.type || e); } }; poll = function() { var e; try { root.doScroll("left"); } catch (_error) { e = _error; setTimeout(poll, 50); return; } return init("poll"); }; if (doc.readyState !== "complete") { if (doc.createEventObject && root.doScroll) { try { top = !win.frameElement; } catch (_error) {} if (top) { poll(); } } doc[add](pre + "DOMContentLoaded", init, false); doc[add](pre + "readystatechange", init, false); return win[add](pre + "load", init, false); } }; Dropzone._autoDiscoverFunction = function() { if (Dropzone.autoDiscover) { return Dropzone.discover(); } }; contentLoaded(window, Dropzone._autoDiscoverFunction); }).call(this); }); if (typeof exports == "object") { module.exports = require("dropzone"); } else if (typeof define == "function" && define.amd) { define([], function(){ return require("dropzone"); }); } else { this["Dropzone"] = require("dropzone"); } })()