###

#

# More info at [www.dropzonejs.com](http://www.dropzonejs.com)

#

# Copyright (c) 2012, Matias Meno

#

# Permission is hereby granted, free of charge, to any person obtaining a copy

# of this software and associated documentation files (the "Software"), to deal

# in the Software without restriction, including without limitation the rights

# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

# copies of the Software, and to permit persons to whom the Software is

# furnished to do so, subject to the following conditions:

#

# The above copyright notice and this permission notice shall be included in

# all copies or substantial portions of the Software.

#

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

# THE SOFTWARE.

#

###

# Dependencies

Em = Emitter ? require "emitter" # Can't be the same name because it will lead to a local variable

noop = ->

class Dropzone extends Em

###

This is a list of all available events you can register on a dropzone object.

You can register an event handler like this:

dropzone.on("dragEnter", function() { });

###

events: [

"drop"

"dragstart"

"dragend"

"dragenter"

"dragover"

"dragleave"

"selectedfiles"

"addedfile"

"removedfile"

"thumbnail"

"error"

"processingfile"

"uploadprogress"

"totaluploadprogress"

"sending"

"success"

"complete"

"reset"

]

defaultOptions:

url: null

method: "post"

withCredentials: no

parallelUploads: 2

maxFilesize: 256 # in MB

paramName: "file" # The name of the file param that gets transferred.

createImageThumbnails: true

maxThumbnailFilesize: 10 # in MB. When the filename exceeds this limit, the thumbnail will not be generated.

thumbnailWidth: 100

thumbnailHeight: 100

# Can be an object of additional parameters to transfer to the server.

# This is the same as adding hidden input fields in the form element.

params: { }

# If true, the dropzone will present a file selector when clicked.

clickable: yes

# Whether hidden files in directories should be ignored.

ignoreHiddenFiles: yes

# You can set accepted mime types here.

#

# The default implementation of the `accept()` function will check this

# property, and if the Dropzone is clickable this will be used as

# `accept` attribute.

#

# See https://developer.mozilla.org/en-US/docs/HTML/Element/input#attr-accept

# for a reference.

acceptedMimeTypes: null # eg: "audio/*,video/*,image/*"

# @deprecated

# Use acceptedMimeTypes instead.

acceptParameter: null

# If false, files will not be added to the process queue automatically.

# This can be useful if you need some additional user input before sending

# files.

# If you're ready to send the file, set the file.status to Dropzone.QUEUED

# and call processQueue()

enqueueForUpload: yes

# If true, Dropzone will add a link to each file preview to cancel/remove

# the upload.

# See dictCancelUpload and dictRemoveFile to use different words.

addRemoveLinks: no

# A CSS selector or HTML element for the file previews container.

# If null, the dropzone element itself will be used

previewsContainer: null

# Dictionary

# The text used before any files are dropped

dictDefaultMessage: "Drop files here to upload"

# The text that replaces the default message text it the browser is not supported

dictFallbackMessage: "Your browser does not support drag'n'drop file uploads."

# The text that will be added before the fallback form

# If null, no text will be added at all.

dictFallbackText: "Please use the fallback form below to upload your files like in the olden days."

# If the filesize is too big.

dictFileTooBig: "File is too big ({{filesize}}MB). Max filesize: {{maxFilesize}}MB."

# If the file doesn't match the file type.

dictInvalidFileType: "You can't upload files of this type."

# If the server response was invalid.

dictResponseError: "Server responded with {{statusCode}} code."

# If used, the text to be used for the cancel upload link.

dictCancelUpload: "Cancel upload"

# If used, the text to be used for confirmation when cancelling upload.

dictCancelUploadConfirmation: "Are you sure you want to cancel this upload?"

# If used, the text to be used to remove a file.

dictRemoveFile: "Remove file"

# If `done()` is called without argument the file is accepted

# If you call it with an error message, the file is rejected

# (This allows for asynchronous validation).

accept: (file, done) -> done()

# Called when dropzone initialized

# You can add event listeners here

init: -> noop

# Used to debug dropzone and force the fallback form.

forceFallback: off

# Called when the browser does not support drag and drop

fallback: ->

# This code should pass in IE7... :(

@element.className = "#{@element.className} dz-browser-not-supported"

for child in @element.getElementsByTagName "div"

if /(^| )dz-message($| )/.test child.className

messageElement = child

child.className = "dz-message" # Removes the 'dz-default' class

continue

unless messageElement

messageElement = Dropzone.createElement """<div class="dz-message"><span></span></div>"""

@element.appendChild messageElement

span = messageElement.getElementsByTagName("span")[0]

span.textContent = @options.dictFallbackMessage if span

@element.appendChild @getFallbackForm()

# Gets called to calculate the thumbnail dimensions.

#

# You can use file.width, file.height, options.thumbnailWidth and

# options.thumbnailHeight to calculate the dimensions.

#

# The dimensions are going to be used like this:

#

# var info = @options.resize.call(this, file);

# ctx.drawImage(img, info.srcX, info.srcY, info.srcWidth, info.srcHeight, info.trgX, info.trgY, info.trgWidth, info.trgHeight);

#

# srcX, srcy, trgX and trgY can be omitted (in which case 0 is assumed).

# trgWidth and trgHeight can be omitted (in which case the options.thumbnailWidth / options.thumbnailHeight are used)

resize: (file) ->

info =

srcX: 0

srcY: 0

srcWidth: file.width

srcHeight: file.height

srcRatio = file.width / file.height

trgRatio = @options.thumbnailWidth / @options.thumbnailHeight

if file.height < @options.thumbnailHeight or file.width < @options.thumbnailWidth

# This image is smaller than the canvas

info.trgHeight = info.srcHeight

info.trgWidth = info.srcWidth

else

# Image is bigger and needs rescaling

if srcRatio > trgRatio

info.srcHeight = file.height

info.srcWidth = info.srcHeight * trgRatio

else

info.srcWidth = file.width

info.srcHeight = info.srcWidth / trgRatio

info.srcX = (file.width - info.srcWidth) / 2

info.srcY = (file.height - info.srcHeight) / 2

return info

###

Those functions register themselves to the events on init and handle all

the user interface specific stuff. 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.

###

# Those are self explanatory and simply concern the DragnDrop.

drop: (e) -> @element.classList.remove "dz-drag-hover"

dragstart: noop

dragend: (e) -> @element.classList.remove "dz-drag-hover"

dragenter: (e) -> @element.classList.add "dz-drag-hover"

dragover: (e) -> @element.classList.add "dz-drag-hover"

dragleave: (e) -> @element.classList.remove "dz-drag-hover"

# Called whenever files are dropped or selected

selectedfiles: (files) ->

@element.classList.add "dz-started" if @element == @previewsContainer

# Called whenever there are no files left in the dropzone anymore, and the

# dropzone should be displayed as if in the initial state.

reset: ->

@element.classList.remove "dz-started"

# Called when a file is added to the queue

# Receives `file`

addedfile: (file) ->

file.previewElement = Dropzone.createElement @options.previewTemplate

file.previewTemplate = file.previewElement # Backwards compatibility

@previewsContainer.appendChild file.previewElement

file.previewElement.querySelector("[data-dz-name]").textContent = file.name

file.previewElement.querySelector("[data-dz-size]").innerHTML = @filesize file.size

if @options.addRemoveLinks

file._removeLink = Dropzone.createElement """<a class="dz-remove" href="javascript:undefined;">#{@options.dictRemoveFile}</a>"""

file._removeLink.addEventListener "click", (e) =>

e.preventDefault()

e.stopPropagation()

if file.status == Dropzone.UPLOADING

@removeFile file if window.confirm @options.dictCancelUploadConfirmation

else

@removeFile file

file.previewElement.appendChild file._removeLink

# Called whenever a file is removed.

removedfile: (file) ->

file.previewElement?.parentNode.removeChild file.previewElement

# Called when a thumbnail has been generated

# Receives `file` and `dataUrl`

thumbnail: (file, dataUrl) ->

file.previewElement.classList.remove "dz-file-preview"

file.previewElement.classList.add "dz-image-preview"

thumbnailElement = file.previewElement.querySelector("[data-dz-thumbnail]")

thumbnailElement.alt = file.name

thumbnailElement.src = dataUrl

# Called whenever an error occurs

# Receives `file` and `message`

error: (file, message) ->

file.previewElement.classList.add "dz-error"

file.previewElement.querySelector("[data-dz-errormessage]").textContent = message

# Called when a file gets processed. Since there is a cue, not all added

# files are processed immediately.

# Receives `file`

processingfile: (file) ->

file.previewElement.classList.add "dz-processing"

file._removeLink.textContent = @options.dictCancelUpload if file._removeLink

# Called whenever the upload progress gets updated.

# Receives `file`, `progress` (percentage 0-100) and `bytesSent`.

# To get the total number of bytes of the file, use `file.size`

uploadprogress: (file, progress, bytesSent) ->

file.previewElement.querySelector("[data-dz-uploadprogress]").style.width = "#{progress}%"

# Called whenever the total upload progress gets updated.

# Called with totalUploadProgress (0-100), totalBytes and totalBytesSent

totaluploadprogress: noop

# Called just before the file is sent. Gets the `xhr` object as second

# parameter, so you can modify it (for example to add a CSRF token) and a

# `formData` object to add additional information.

sending: noop

# When the complete upload is finished and successfull

# Receives `file`

success: (file) ->

file.previewElement.classList.add "dz-success"

# When the upload is finished, either with success or an error.

# Receives `file`

complete: (file) ->

file._removeLink.textContent = @options.dictRemoveFile if file._removeLink

# This template will be chosen when a new file is dropped.

previewTemplate: """

<div class="dz-preview dz-file-preview">

<div class="dz-details">

<div class="dz-filename"><span data-dz-name></span></div>

<div class="dz-size" data-dz-size></div>

<img data-dz-thumbnail />

</div>

<div class="dz-progress"><span class="dz-upload" data-dz-uploadprogress></span></div>

<div class="dz-success-mark"><span>✔</span></div>

<div class="dz-error-mark"><span>✘</span></div>

<div class="dz-error-message"><span data-dz-errormessage></span></div>

</div>

"""

# global utility

extend = (target, objects...) ->

for object in objects

target[key] = val for key, val of object

target

constructor: (@element, options) ->

# For backwards compatibility since the version was in the prototype previously

@version = Dropzone.version

@defaultOptions.previewTemplate = @defaultOptions.previewTemplate.replace /\n*/g, ""

@clickableElements = [ ]

@listeners = [ ]

@files = [] # All files

@element = document.querySelector @element if typeof @element == "string"

# Not checking if instance of HTMLElement or Element since IE9 is extremely weird.

throw new Error "Invalid dropzone element." unless @element and @element.nodeType?

throw new Error "Dropzone already attached." if @element.dropzone

# Now add this dropzone to the instances.

Dropzone.instances.push @

# Put the dropzone inside the element itself.

element.dropzone = @

elementOptions = Dropzone.optionsForElement(@element) ? { }

@options = extend { }, @defaultOptions, elementOptions, options ? { }

@options.url = @element.action unless @options.url?

throw new Error "No URL provided." unless @options.url

throw new Error "You can't provide both 'acceptParameter' and 'acceptedMimeTypes'. 'acceptParameter' is deprecated." if @options.acceptParameter and @options.acceptedMimeTypes

@options.method = @options.method.toUpperCase()

# If the browser failed, just call the fallback and leave

return @options.fallback.call this if @options.forceFallback or !Dropzone.isBrowserSupported()

if (fallback = @getExistingFallback()) and fallback.parentNode

# Remove the fallback

fallback.parentNode.removeChild fallback

if @options.previewsContainer

@previewsContainer = Dropzone.getElement @options.previewsContainer, "previewsContainer"

else

@previewsContainer = @element

if @options.clickable

if @options.clickable == yes

@clickableElements = [ @element ]

else

@clickableElements = Dropzone.getElements @options.clickable, "clickable"

@init()

# Returns all files that have been accepted

getAcceptedFiles: -> file for file in @files when file.accepted

# Returns all files that have been rejected

# Not sure when that's going to be useful, but added for completeness.

getRejectedFiles: -> file for file in @files unless file.accepted

# Returns all files that are in the queue

getQueuedFiles: -> file for file in @files when file.status == Dropzone.QUEUED

getUploadingFiles: -> file for file in @files when file.status == Dropzone.UPLOADING

enqueueFile: (file) ->

if file.status == Dropzone.ACCEPTED

file.status = Dropzone.QUEUED

@processQueue()

else

throw new Error "This file can't be queued because it has already been processed or was rejected."

init: ->

# In case it isn't set already

@element.setAttribute("enctype", "multipart/form-data") if @element.tagName == "form"

if @element.classList.contains("dropzone") and [email protected](".dz-message")

@element.appendChild Dropzone.createElement """<div class="dz-default dz-message"><span>#{@options.dictDefaultMessage}</span></div>"""

if @clickableElements.length

setupHiddenFileInput = =>

document.body.removeChild @hiddenFileInput if @hiddenFileInput

@hiddenFileInput = document.createElement "input"

@hiddenFileInput.setAttribute "type", "file"

@hiddenFileInput.setAttribute "multiple", "multiple"

@hiddenFileInput.setAttribute "accept", @options.acceptedMimeTypes if @options.acceptedMimeTypes?

# Backwards compatibility

@hiddenFileInput.setAttribute "accept", @options.acceptParameter if @options.acceptParameter?

# Not setting `display="none"` because some browsers don't accept clicks

# on elements that aren't displayed.

@hiddenFileInput.style.visibility = "hidden"

@hiddenFileInput.style.position = "absolute"

@hiddenFileInput.style.top = "0"

@hiddenFileInput.style.left = "0"

@hiddenFileInput.style.height = "0"

@hiddenFileInput.style.width = "0"

document.body.appendChild @hiddenFileInput

@hiddenFileInput.addEventListener "change", =>

files = @hiddenFileInput.files

if files.length

@emit "selectedfiles", files

@handleFiles files

setupHiddenFileInput()

setupHiddenFileInput()

@URL = window.URL ? window.webkitURL

# Setup all event listeners on the Dropzone object itself.

# They're not in @setupEventListeners() because they shouldn't be removed

# again when the dropzone gets disabled.

@on eventName, @options[eventName] for eventName in @events

@on "uploadprogress", => @updateTotalUploadProgress()

@on "removedfile", => @updateTotalUploadProgress()

noPropagation = (e) ->

e.stopPropagation()

if e.preventDefault

e.preventDefault()

else

e.returnValue = false

# Create the listeners

@listeners = [

{

element: @element

events:

"dragstart": (e) =>

@emit "dragstart", e

"dragenter": (e) =>

noPropagation e

@emit "dragenter", e

"dragover": (e) =>

noPropagation e

@emit "dragover", e

"dragleave": (e) =>

@emit "dragleave", e

"drop": (e) =>

noPropagation e

@drop e

@emit "drop", e

"dragend": (e) =>

@emit "dragend", e

}

]

@clickableElements.forEach (clickableElement) =>

@listeners.push

element: clickableElement

events:

"click": (evt) =>

# Only the actual dropzone or the message element should trigger file selection

if (clickableElement != @element) or (evt.target == @element or Dropzone.elementInside evt.target, @element.querySelector ".dz-message")

@hiddenFileInput.click() # Forward the click

@enable()

@options.init.call @

# Not fully tested yet

destroy: ->

@disable()

@removeAllFiles true

if @hiddenFileInput?.parentNode

@hiddenFileInput.parentNode.removeChild @hiddenFileInput

@hiddenFileInput = null

delete @element.dropzone

updateTotalUploadProgress: ->

totalBytesSent = 0

totalBytes = 0

acceptedFiles = @getAcceptedFiles()

if acceptedFiles.length

for file in @getAcceptedFiles()

totalBytesSent = file.upload.bytesSent

totalBytes = file.upload.total

totalUploadProgress = 100 * totalBytesSent / totalBytes

else

totalUploadProgress = 100

@emit "totaluploadprogress", totalUploadProgress, totalBytes, totalBytesSent

# Returns a form that can be used as fallback if the browser does not support DragnDrop

#

# If the dropzone is already a form, only the input field and button are returned. Otherwise a complete form element is provided.

# This code has to pass in IE7 :(

getFallbackForm: ->

return existingFallback if existingFallback = @getExistingFallback()

fieldsString = """<div class="dz-fallback">"""

fieldsString = """<p>#{@options.dictFallbackText}</p>""" if @options.dictFallbackText

fieldsString = """<input type="file" name="#{@options.paramName}[]" multiple="multiple" /><button type="submit">Upload!</button></div>"""

fields = Dropzone.createElement fieldsString

if @element.tagName isnt "FORM"

form = Dropzone.createElement("""<form action="#{@options.url}" enctype="multipart/form-data" method="#{@options.method}"></form>""")

form.appendChild fields

else

# Make sure that the enctype and method attributes are set properly

@element.setAttribute "enctype", "multipart/form-data"

@element.setAttribute "method", @options.method

form ? fields

# Returns the fallback elements if they exist already

#

# This code has to pass in IE7 :(

getExistingFallback: ->

getFallback = (elements) -> return el for el in elements when /(^| )fallback($| )/.test el.className

for tagName in [ "div", "form" ]

return fallback if fallback = getFallback @element.getElementsByTagName tagName

# Activates all listeners stored in @listeners

setupEventListeners: ->

for elementListeners in @listeners

elementListeners.element.addEventListener event, listener, false for event, listener of elementListeners.events

# Deactivates all listeners stored in @listeners

removeEventListeners: ->

for elementListeners in @listeners

elementListeners.element.removeEventListener event, listener, false for event, listener of elementListeners.events

# Removes all event listeners and cancels all files in the queue or being processed.

disable: ->

@clickableElements.forEach (element) -> element.classList.remove "dz-clickable"

@removeEventListeners()

@cancelUpload file for file in @files

enable: ->

@clickableElements.forEach (element) -> element.classList.add "dz-clickable"

@setupEventListeners()

# Returns a nicely formatted filesize

filesize: (size) ->

if size >= 100000000000

size = size / 100000000000

string = "TB"

else if size >= 100000000

size = size / 100000000

string = "GB"

else if size >= 100000

size = size / 100000

string = "MB"

else if size >= 100

size = size / 100

string = "KB"

else

size = size * 10

string = "b"

"<strong>#{Math.round(size)/10}</strong> #{string}"

drop: (e) ->

return unless e.dataTransfer

files = e.dataTransfer.files

@emit "selectedfiles", files

# Even if it's a folder, files.length will contain the folders.

if files.length

items = e.dataTransfer.items

if items and items.length and (items[0].webkitGetAsEntry? or items[0].getAsEntry?)

# The browser supports dropping of folders, so handle items instead of files

@handleItems items

else

@handleFiles files

return

handleFiles: (files) ->

@addFile file for file in files

# When a folder is dropped, items must be handled instead of files.

handleItems: (items) ->

for item in items

if item.webkitGetAsEntry?

entry = item.webkitGetAsEntry()

if entry.isFile

@addFile item.getAsFile()

else if entry.isDirectory

@addDirectory entry, entry.name

else

@addFile item.getAsFile()

return

# If `done()` is called without argument the file is accepted

# If you call it with an error message, the file is rejected

# (This allows for asynchronous validation)

#

# This function checks the filesize, and if the file.type passes the

# `acceptedMimeTypes` check.

accept: (file, done) ->

if file.size > @options.maxFilesize * 1024 * 1024

done @options.dictFileTooBig.replace("{{filesize}}", Math.round(file.size / 1024 / 10.24) / 100).replace("{{maxFilesize}}", @options.maxFilesize)

else unless Dropzone.isValidMimeType file.type, @options.acceptedMimeTypes

done @options.dictInvalidFileType

else

@options.accept.call this, file, done

addFile: (file) ->

file.upload =

progress: 0

# Setting the total upload size to file.size for the beginning

# It's actual different than the size to be transmitted.

total: file.size

bytesSent: 0

@files.push file

file.status = Dropzone.ADDED

@emit "addedfile", file

@createThumbnail file if @options.createImageThumbnails and file.type.match(/image.*/) and file.size <= @options.maxThumbnailFilesize * 1024 * 1024

@accept file, (error) =>

if error

file.accepted = false # Backwards compatibility

@errorProcessing file, error # Will set the file.status

else

file.status = Dropzone.ACCEPTED

file.accepted = true # Backwards compatibility

if @options.enqueueForUpload

file.status = Dropzone.QUEUED

@processQueue()

# Used to read a directory, and call addFile() with every file found.

addDirectory: (entry, path) ->

dirReader = entry.createReader()

entriesReader = (entries) =>

for entry in entries

if entry.isFile

entry.file (file) =>

return if @options.ignoreHiddenFiles and file.name.substring(0, 1) is '.'

file.fullPath = "#{path}/#{file.name}"

@addFile file

else if entry.isDirectory

@addDirectory entry, "#{path}/#{entry.name}"

return

dirReader.readEntries entriesReader, (error) -> console?.log? error

# Can be called by the user to remove a file

removeFile: (file) ->

@cancelUpload file if file.status == Dropzone.UPLOADING

@files = without @files, file

@emit "removedfile", file

@emit "reset" if @files.length == 0

# Removes all files that aren't currently processed from the list

removeAllFiles: (cancelIfNecessary = off) ->

# Create a copy of files since removeFile() changes the @files array.

for file in @files.slice()

@removeFile file if file.status != Dropzone.UPLOADING || cancelIfNecessary

return null

createThumbnail: (file) ->

fileReader = new FileReader

fileReader.onload = =>

img = new Image

img.onload = =>

file.width = img.width

file.height = img.height

resizeInfo = @options.resize.call @, file

resizeInfo.trgWidth ?= @options.thumbnailWidth

resizeInfo.trgHeight ?= @options.thumbnailHeight

canvas = document.createElement "canvas"

ctx = canvas.getContext "2d"

canvas.width = resizeInfo.trgWidth

canvas.height = resizeInfo.trgHeight

ctx.drawImage img, resizeInfo.srcX ? 0, resizeInfo.srcY ? 0, resizeInfo.srcWidth, resizeInfo.srcHeight, resizeInfo.trgX ? 0, resizeInfo.trgY ? 0, resizeInfo.trgWidth, resizeInfo.trgHeight

thumbnail = canvas.toDataURL "image/png"

@emit "thumbnail", file, thumbnail

img.src = fileReader.result

fileReader.readAsDataURL file

# Goes through the queue and processes files if there aren't too many already.

processQueue: ->

parallelUploads = @options.parallelUploads

processingLength = @getUploadingFiles().length

i = processingLength

queuedFiles = @getQueuedFiles()

while i < parallelUploads

return unless queuedFiles.length # Nothing left to process

@processFile queuedFiles.shift()

i

# Loads the file, then calls finishedLoading()

processFile: (file) ->

file.processing = yes # Backwards compatibility

file.status = Dropzone.UPLOADING

@emit "processingfile", file

@uploadFile file

# Cancels the file upload and sets the status to CANCELED

# **if** the file is actually being uploaded.

# If it's still in the queue, the file is being removed from it and the status

# set to CANCELED.

cancelUpload: (file) ->

if file.status == Dropzone.UPLOADING

file.status = Dropzone.CANCELED

file.xhr.abort()

else if file.status in [ Dropzone.ADDED, Dropzone.ACCEPTED, Dropzone.QUEUED ]

file.status = Dropzone.CANCELED

@emit "complete", file

@processQueue()

uploadFile: (file) ->

xhr = new XMLHttpRequest()

# Put the xhr object in the file object to be able to reference it later.

file.xhr = xhr

xhr.open @options.method, @options.url, true

# Has to be after `.open()`. See https://github.com/enyo/dropzone/issues/179

xhr.withCredentials = [email protected]

response = null

handleError = =>

@errorProcessing file, response || @options.dictResponseError.replace("{{statusCode}}", xhr.status), xhr

updateProgress = (e) =>

if e?

progress = 100 * e.loaded / e.total

file.upload =

progress: progress

total: e.total

bytesSent: e.loaded

else

# Called when the file finished uploading

# Nothing to do, already at 100%

return if file.upload.progress == 100 and file.upload.bytesSent == file.upload.total

progress = 100

file.upload.progress = progress

file.upload.bytesSent = file.upload.total

@emit "uploadprogress", file, progress, file.upload.bytesSent

xhr.onload = (e) =>

return if file.status == Dropzone.CANCELED

return unless xhr.readyState is 4

response = xhr.responseText

if xhr.getResponseHeader("content-type") and ~xhr.getResponseHeader("content-type").indexOf "application/json"

try

response = JSON.parse response

catch e

response = "Invalid JSON response from server."

updateProgress()

unless 200 <= xhr.status < 300

handleError()

else

@finished file, response, e

xhr.onerror = =>

return if file.status == Dropzone.CANCELED

handleError()

# Some browsers do not have the .upload property

progressObj = xhr.upload ? xhr

progressObj.onprogress = updateProgress

headers =

"Accept": "application/json",

"Cache-Control": "no-cache",

"X-Requested-With": "XMLHttpRequest",

"X-File-Name": encodeURIComponent file.name

extend headers, @options.headers if @options.headers

xhr.setRequestHeader header, name for header, name of headers

formData = new FormData()

# Adding all @options parameters

formData.append key, value for key, value of @options.params if @options.params

# Take care of other input elements

if @element.tagName == "FORM"

for input in @element.querySelectorAll "input, textarea, select, button"

inputName = input.getAttribute "name"

inputType = input.getAttribute "type"

if !inputType or inputType.toLowerCase() != "checkbox" or input.checked

formData.append inputName, input.value

# Let the user add additional data if necessary

@emit "sending", file, xhr, formData

# Finally add the file

# Has to be last because some servers (eg: S3) expect the file to be the

# last parameter

formData.append @options.paramName, file

xhr.send formData

# Called internally when processing is finished.

# Individual callbacks have to be called in the appropriate sections.

finished: (file, responseText, e) ->

file.status = Dropzone.SUCCESS

@processQueue()

@emit "success", file, responseText, e

@emit "finished", file, responseText, e # For backwards compatibility

@emit "complete", file

# Called internally when processing is finished.

# Individual callbacks have to be called in the appropriate sections.

errorProcessing: (file, message, xhr) ->

file.status = Dropzone.ERROR

@processQueue()

@emit "error", file, message, xhr

@emit "complete", file

Dropzone.version = "3.5.3"

# This is a map of options for your different dropzones. Add configurations

# to this object for your different dropzone elemens.

#

# Example:

#

# Dropzone.options.myDropzoneElementId = { maxFilesize: 1 };

#

# To disable autoDiscover for a specific element, you can set `false` as an option:

#

# Dropzone.options.myDisabledElementId = false;

#

# And in html:

#

# <form action="/upload" id="my-dropzone-element-id" class="dropzone"></form>

Dropzone.options = { }

# Returns the options for an element or undefined if none available.

Dropzone.optionsForElement = (element) ->

# Get the `Dropzone.options.elementId` for this element if it exists

if element.id then Dropzone.options[camelize element.id] else undefined

# Holds a list of all dropzone instances

Dropzone.instances = [ ]

# Returns the dropzone for given element if any

Dropzone.forElement = (element) ->

element = document.querySelector element if typeof element == "string"

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." unless element?.dropzone?

return element.dropzone

# Set to false if you don't want Dropzone to automatically find and attach to .dropzone elements.

Dropzone.autoDiscover = on

# Looks for all .dropzone elements and creates a dropzone for them

Dropzone.discover = ->

return unless Dropzone.autoDiscover

if document.querySelectorAll

dropzones = document.querySelectorAll ".dropzone"

else

dropzones = [ ]

# IE :(

checkElements = (elements) ->

for el in elements

dropzones.push el if /(^| )dropzone($| )/.test el.className

checkElements document.getElementsByTagName "div"

checkElements document.getElementsByTagName "form"

for dropzone in dropzones

# Create a dropzone unless auto discover has been disabled for specific element

new Dropzone dropzone unless Dropzone.optionsForElement(dropzone) == false

# Since the whole Drag'n'Drop API is pretty new, some browsers implement it,

# but not correctly.

# So I created a blacklist of userAgents. Yes, yes. Browser sniffing, I know.

# But what to do when browsers *theoretically* support an API, but crash

# when using it.

#

# This is a list of regular expressions tested against navigator.userAgent

#

# ** It should only be used on browser that *do* support the API, but

# incorrectly **

#

Dropzone.blacklistedBrowsers = [

# The mac os version of opera 12 seems to have a problem with the File drag'n'drop API.

/opera.*Macintosh.*version\/12/i

# /MSIE\ 10/i

]