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###
#
# 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"
"errormultiple"
"processing"
"processingmultiple"
"uploadprogress"
"totaluploadprogress"
"sending"
"sendingmultiple"
"success"
"successmultiple"
"canceled"
"canceledmultiple"
"complete"
"completemultiple"
"reset"
"maxfilesexceeded"
]
defaultOptions:
url: null
method: "post"
withCredentials: no
parallelUploads: 2
uploadMultiple: no # Whether to send multiple files in one request.
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 used to limit the maximum number of files that will be handled
# by this Dropzone
maxFiles: null
# 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.
#
# This is a comma separated list of mime types or extensions. E.g.:
#
# audio/*,video/*,image/png,.pdf
#
# See https://developer.mozilla.org/en-US/docs/HTML/Element/input#attr-accept
# for a reference.
acceptedFiles: null
# @deprecated
# Use acceptedFiles instead.
acceptedMimeTypes: null
# If false, files will be added to the queue but the queu will not be
# processed automatically.
# This can be useful if you need some additional user input before sending
# files (or if you want want all files sent at once).
# If you're ready to send the file simply call myDropzone.processQueue()
autoProcessQueue: on
# 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 this is not null, then the user will be prompted before removing a file.
dictRemoveFileConfirmation: null
# Displayed when the maxFiles have been exceeded
dictMaxFilesExceeded: "You can only upload {{maxFiles}} files."
# 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
Dropzone.confirm @options.dictCancelUploadConfirmation, => @removeFile file
else
if @options.dictRemoveFileConfirmation
Dropzone.confirm @options.dictRemoveFileConfirmation, => @removeFile file
else
@removeFile file
file.previewElement.appendChild file._removeLink
@_updateMaxFilesReachedClass()
# Called whenever a file is removed.
removedfile: (file) ->
file.previewElement?.parentNode.removeChild file.previewElement
@_updateMaxFilesReachedClass()
# 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
errormultiple: noop
# Called when a file gets processed. Since there is a cue, not all added
# files are processed immediately.
# Receives `file`
processing: (file) ->
file.previewElement.classList.add "dz-processing"
file._removeLink.textContent = @options.dictCancelUpload if file._removeLink
processingmultiple: noop
# 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
sendingmultiple: noop
# When the complete upload is finished and successfull
# Receives `file`
success: (file) ->
file.previewElement.classList.add "dz-success"
successmultiple: noop
# When the upload is canceled.
canceled: (file) -> @emit "error", file, "Upload canceled."
canceledmultiple: noop
# When the upload is finished, either with success or an error.
# Receives `file`
complete: (file) ->
file._removeLink.textContent = @options.dictRemoveFile if file._removeLink
completemultiple: noop
maxfilesexceeded: noop
# 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 ? { }
# If the browser failed, just call the fallback and leave
return @options.fallback.call this if @options.forceFallback or !Dropzone.isBrowserSupported()
# @options.url = @element.getAttribute "action" unless @options.url?
@options.url = @element.getAttribute "action" unless @options.url?
throw new Error "No URL provided." unless @options.url
throw new Error "You can't provide both 'acceptedFiles' and 'acceptedMimeTypes'. 'acceptedMimeTypes' is deprecated." if @options.acceptedFiles and @options.acceptedMimeTypes
# Backwards compatibility
if @options.acceptedMimeTypes
@options.acceptedFiles = @options.acceptedMimeTypes
delete @options.acceptedMimeTypes
@options.method = @options.method.toUpperCase()
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 when not 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
init: ->
# In case it isn't set already
@element.setAttribute("enctype", "multipart/form-data") if @element.tagName == "form"
if @element.classList.contains("dropzone") and !@element.querySelector(".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.acceptedFiles if @options.acceptedFiles?
# 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()
@on "canceled", (file) => @emit "complete", file
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
"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}#{if @options.uploadMultiple then "[]" else ""}" #{if @options.uploadMultiple then '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}"
# Adds or removes the `dz-max-files-reached` class from the form.
_updateMaxFilesReachedClass: ->
if @options.maxFiles and @getAcceptedFiles().length >= @options.maxFiles
@element.classList.add "dz-max-files-reached"
else
@element.classList.remove "dz-max-files-reached"
drop: (e) ->
return unless e.dataTransfer
@emit "drop", e
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
# `acceptedFiles` 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.isValidFile file, @options.acceptedFiles
done @options.dictInvalidFileType
else if @options.maxFiles and @getAcceptedFiles().length >= @options.maxFiles
done @options.dictMaxFilesExceeded.replace "{{maxFiles}}", @options.maxFiles
@emit "maxfilesexceeded", file
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
@_errorProcessing [ file ], error # Will set the file.status
else
@enqueueFile file # Will set .accepted = true
# Wrapper for enqueuFile
enqueueFiles: (files) -> @enqueueFile file for file in files; null
enqueueFile: (file) ->
file.accepted = true
if file.status == Dropzone.ADDED
file.status = Dropzone.QUEUED
if @options.autoProcessQueue
setTimeout (=> @processQueue()), 1 # Deferring the call
else
throw new Error "This file can't be queued because it has already been processed or was rejected."
# 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
# There are already at least as many files uploading than should be
return if processingLength >= parallelUploads
queuedFiles = @getQueuedFiles()
return unless queuedFiles.length > 0
if @options.uploadMultiple
# The files should be uploaded in one request
@processFiles queuedFiles.slice 0, (parallelUploads - processingLength)
else
while i < parallelUploads
return unless queuedFiles.length # Nothing left to process
@processFile queuedFiles.shift()
i++
# Wrapper for `processFiles`
processFile: (file) -> @processFiles [ file ]
# Loads the file, then calls finishedLoading()
processFiles: (files) ->
for file in files
file.processing = yes # Backwards compatibility
file.status = Dropzone.UPLOADING
@emit "processing", file
@emit "processingmultiple", files if @options.uploadMultiple
@uploadFiles files
_getFilesWithXhr: (xhr) -> files = (file for file in @files when file.xhr == xhr)
# 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
groupedFiles = @_getFilesWithXhr file.xhr
groupedFile.status = Dropzone.CANCELED for groupedFile in groupedFiles
file.xhr.abort()
@emit "canceled", groupedFile for groupedFile in groupedFiles
@emit "canceledmultiple", groupedFiles if @options.uploadMultiple
else if file.status in [ Dropzone.ADDED, Dropzone.QUEUED ]
file.status = Dropzone.CANCELED
@emit "canceled", file
@emit "canceledmultiple", [ file ] if @options.uploadMultiple
@processQueue() if @options.autoProcessQueue
# Wrapper for uploadFiles()
uploadFile: (file) -> @uploadFiles [ file ]
uploadFiles: (files) ->
xhr = new XMLHttpRequest()
# Put the xhr object in the file objects to be able to reference it later.
file.xhr = xhr for file in files
xhr.open @options.method, @options.url, true
# Has to be after `.open()`. See https://github.com/enyo/dropzone/issues/179
xhr.withCredentials = !!@options.withCredentials
response = null
handleError = =>
for file in files
@_errorProcessing files, response || @options.dictResponseError.replace("{{statusCode}}", xhr.status), xhr
updateProgress = (e) =>
if e?
progress = 100 * e.loaded / e.total
for file in files
file.upload =
progress: progress
total: e.total
bytesSent: e.loaded
else
# Called when the file finished uploading
allFilesFinished = yes
progress = 100
for file in files
allFilesFinished = no unless file.upload.progress == 100 and file.upload.bytesSent == file.upload.total
file.upload.progress = progress
file.upload.bytesSent = file.upload.total
# Nothing to do, all files already at 100%
return if allFilesFinished
for file in files
@emit "uploadprogress", file, progress, file.upload.bytesSent
xhr.onload = (e) =>
return if files[0].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 files, response, e
xhr.onerror = =>
return if files[0].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",
extend headers, @options.headers if @options.headers
xhr.setRequestHeader headerName, headerValue for headerName, headerValue of headers
formData = new FormData()
# Adding all @options parameters
formData.append key, value for key, value of @options.params if @options.params
# Let the user add additional data if necessary
@emit "sending", file, xhr, formData for file in files
@emit "sendingmultiple", files, xhr, formData if @options.uploadMultiple
# 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() not in [ "checkbox", "radio" ]) or input.checked
formData.append inputName, input.value
# 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}#{if @options.uploadMultiple then "[]" else ""}", file, file.name for file in files
xhr.send formData
# Called internally when processing is finished.
# Individual callbacks have to be called in the appropriate sections.
_finished: (files, responseText, e) ->
for file in files
file.status = Dropzone.SUCCESS
@emit "success", file, responseText, e
@emit "complete", file
if @options.uploadMultiple
@emit "successmultiple", files, responseText, e
@emit "completemultiple", files
@processQueue() if @options.autoProcessQueue
# Called internally when processing is finished.
# Individual callbacks have to be called in the appropriate sections.
_errorProcessing: (files, message, xhr) ->
for file in files
file.status = Dropzone.ERROR
@emit "error", file, message, xhr
@emit "complete", file
if @options.uploadMultiple
@emit "errormultiple", files, message, xhr
@emit "completemultiple", files
@processQueue() if @options.autoProcessQueue
Dropzone.version = "3.7.1"
# 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 = ->
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
]
# Checks if the browser is supported
Dropzone.isBrowserSupported = ->
capableBrowser = yes
if window.File and window.FileReader and window.FileList and window.Blob and window.FormData and document.querySelector
unless "classList" of document.createElement "a"
capableBrowser = no
else
# The browser supports the API, but may be blacklisted.
for regex in Dropzone.blacklistedBrowsers
if regex.test navigator.userAgent
capableBrowser = no
continue
else
capableBrowser = no
capableBrowser
# Returns an array without the rejected item
without = (list, rejectedItem) -> item for item in list when item isnt rejectedItem
# abc-def_ghi -> abcDefGhi
camelize = (str) -> str.replace /[\-_](\w)/g, (match) -> match[1].toUpperCase()
# Creates an element from string
Dropzone.createElement = (string) ->
div = document.createElement "div"
div.innerHTML = string
div.childNodes[0]
# Tests if given element is inside (or simply is) the container
Dropzone.elementInside = (element, container) ->
return yes if element == container # Coffeescript doesn't support do/while loops
return yes while element = element.parentNode when element == container
return no
Dropzone.getElement = (el, name) ->
if typeof el == "string"
element = document.querySelector el
else if el.nodeType?
element = el
throw new Error "Invalid `#{name}` option provided. Please provide a CSS selector or a plain HTML element." unless element?
return element
Dropzone.getElements = (els, name) ->
if els instanceof Array
elements = [ ]
try
elements.push @getElement el, name for el in els
catch e
elements = null
else if typeof els == "string"
elements = [ ]
elements.push el for el in document.querySelectorAll els
else if els.nodeType?
elements = [ els ]
throw new Error "Invalid `#{name}` option provided. Please provide a CSS selector, a plain HTML element or a list of those." unless elements? and elements.length
return elements
# Asks the user the question and calls accepted or rejected accordingly
#
# The default implementation just uses `window.confirm` and then calls the
# appropriate callback.
Dropzone.confirm = (question, accepted, rejected) ->
if window.confirm question
accepted()
else if rejected?
rejected()
# Validates the mime type like this:
#
# https://developer.mozilla.org/en-US/docs/HTML/Element/input#attr-accept
Dropzone.isValidFile = (file, acceptedFiles) ->
return yes unless acceptedFiles # If there are no accepted mime types, it's OK
acceptedFiles = acceptedFiles.split ","
mimeType = file.type
baseMimeType = mimeType.replace /\/.*$/, ""
for validType in acceptedFiles
validType = validType.trim()
if validType.charAt(0) == "."
return yes if file.name.indexOf(validType, file.name.length - validType.length) != -1
else if /\/\*$/.test validType
# This is something like a image/* mime type
return yes if baseMimeType == validType.replace /\/.*$/, ""
else
return yes if mimeType == validType
return no
# Augment jQuery
if jQuery?
jQuery.fn.dropzone = (options) ->
this.each -> new Dropzone this, options
if module?
module.exports = Dropzone
else
window.Dropzone = Dropzone
# Dropzone file status codes
Dropzone.ADDED = "added"
Dropzone.QUEUED = "queued"
# For backwards compatibility. Now, if a file is accepted, it's either queued
# or uploading.
Dropzone.ACCEPTED = Dropzone.QUEUED
Dropzone.UPLOADING = "uploading"
Dropzone.PROCESSING = Dropzone.UPLOADING # alias
Dropzone.CANCELED = "canceled"
Dropzone.ERROR = "error"
Dropzone.SUCCESS = "success"
###
# 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
###
# @win window reference
# @fn function reference
contentLoaded = (win, fn) ->
done = false
top = true
doc = win.document
root = doc.documentElement
add = (if doc.addEventListener then "addEventListener" else "attachEvent")
rem = (if doc.addEventListener then "removeEventListener" else "detachEvent")
pre = (if doc.addEventListener then "" else "on")
init = (e) ->
return if e.type is "readystatechange" and doc.readyState isnt "complete"
((if e.type is "load" then win else doc))[rem] pre + e.type, init, false
fn.call win, e.type or e if not done and (done = true)
poll = ->
try
root.doScroll "left"
catch e
setTimeout poll, 50
return
init "poll"
unless doc.readyState is "complete"
if doc.createEventObject and root.doScroll
try
top = not win.frameElement
poll() if top
doc[add] pre + "DOMContentLoaded", init, false
doc[add] pre + "readystatechange", init, false
win[add] pre + "load", init, false
# As a single function to be able to write tests.
Dropzone._autoDiscoverFunction = -> Dropzone.discover() if Dropzone.autoDiscover
contentLoaded window, Dropzone._autoDiscoverFunction