Files
gitlabhq/app/assets/javascripts/dropzone_input.js.coffee
T
Marco Cyriacks a54e9e5459 Fix raw image paste from clipboard
This patch binds the textarea (markdown area) paste event to the
handlePaste() function (that was already present).

Furthermore the event processing is improved in the following way:

- The default paste event handler of the browser is only disabled if the
  browser fully supports clipboardData AND there realy is image data in
  the event object. In all other cases (no support or no image) the
  default handler processes the text paste.
- Some obsolete code was removed.
- The pasteText() function (which is somehow buggy because it places the
  cursor at the end of the text independantly from its position before the
  paste) is only used to place the image link after image data was pasted.
2015-02-01 22:26:34 +01:00

238 lines
7.4 KiB
CoffeeScript

class @DropzoneInput
constructor: (form) ->
Dropzone.autoDiscover = false
alertClass = "alert alert-danger alert-dismissable div-dropzone-alert"
alertAttr = "class=\"close\" data-dismiss=\"alert\"" + "aria-hidden=\"true\""
divHover = "<div class=\"div-dropzone-hover\"></div>"
divSpinner = "<div class=\"div-dropzone-spinner\"></div>"
divAlert = "<div class=\"" + alertClass + "\"></div>"
iconPicture = "<i class=\"fa fa-picture-o div-dropzone-icon\"></i>"
iconSpinner = "<i class=\"fa fa-spinner fa-spin div-dropzone-icon\"></i>"
btnAlert = "<button type=\"button\"" + alertAttr + ">&times;</button>"
project_image_path_upload = window.project_image_path_upload or null
form_textarea = $(form).find("textarea.markdown-area")
form_textarea.wrap "<div class=\"div-dropzone\"></div>"
form_textarea.bind 'paste', (event) =>
handlePaste(event)
form_dropzone = $(form).find('.div-dropzone')
form_dropzone.parent().addClass "div-dropzone-wrapper"
form_dropzone.append divHover
$(".div-dropzone-hover").append iconPicture
form_dropzone.append divSpinner
$(".div-dropzone-spinner").append iconSpinner
$(".div-dropzone-spinner").css
"opacity": 0
"display": "none"
# Preview button
$(document).off "click", ".js-md-preview-button"
$(document).on "click", ".js-md-preview-button", (e) ->
###
Shows the Markdown preview.
Lets the server render GFM into Html and displays it.
###
e.preventDefault()
form = $(this).closest("form")
# toggle tabs
form.find(".js-md-write-button").parent().removeClass "active"
form.find(".js-md-preview-button").parent().addClass "active"
# toggle content
form.find(".md-write-holder").hide()
form.find(".md-preview-holder").show()
preview = form.find(".js-md-preview")
mdText = form.find(".markdown-area").val()
if mdText.trim().length is 0
preview.text "Nothing to preview."
else
preview.text "Loading..."
$.get($(this).data("url"),
md_text: mdText
).success (previewData) ->
preview.html previewData
# Write button
$(document).off "click", ".js-md-write-button"
$(document).on "click", ".js-md-write-button", (e) ->
###
Shows the Markdown textarea.
###
e.preventDefault()
form = $(this).closest("form")
# toggle tabs
form.find(".js-md-write-button").parent().addClass "active"
form.find(".js-md-preview-button").parent().removeClass "active"
# toggle content
form.find(".md-write-holder").show()
form.find(".md-preview-holder").hide()
dropzone = form_dropzone.dropzone(
url: project_image_path_upload
dictDefaultMessage: ""
clickable: true
paramName: "markdown_img"
maxFilesize: 10
uploadMultiple: false
acceptedFiles: "image/jpg,image/jpeg,image/gif,image/png"
headers:
"X-CSRF-Token": $("meta[name=\"csrf-token\"]").attr("content")
previewContainer: false
processing: ->
$(".div-dropzone-alert").alert "close"
dragover: ->
form_textarea.addClass "div-dropzone-focus"
form.find(".div-dropzone-hover").css "opacity", 0.7
return
dragleave: ->
form_textarea.removeClass "div-dropzone-focus"
form.find(".div-dropzone-hover").css "opacity", 0
return
drop: ->
form_textarea.removeClass "div-dropzone-focus"
form.find(".div-dropzone-hover").css "opacity", 0
form_textarea.focus()
return
success: (header, response) ->
child = $(dropzone[0]).children("textarea")
$(child).val $(child).val() + formatLink(response.link) + "\n"
return
error: (temp, errorMessage) ->
checkIfMsgExists = $(".error-alert").children().length
if checkIfMsgExists is 0
$(".error-alert").append divAlert
$(".div-dropzone-alert").append btnAlert + errorMessage
return
sending: ->
form_dropzone.find(".div-dropzone-spinner").css
"opacity": 0.7
"display": "inherit"
return
complete: ->
$(".dz-preview").remove()
$(".markdown-area").trigger "input"
$(".div-dropzone-spinner").css
"opacity": 0
"display": "none"
return
)
child = $(dropzone[0]).children("textarea")
formatLink = (str) ->
"![" + str.alt + "](" + str.url + ")"
handlePaste = (event) ->
pasteEvent = event.originalEvent
if pasteEvent.clipboardData and pasteEvent.clipboardData.items
image = isImage(pasteEvent)
if image
event.preventDefault()
filename = getFilename(pasteEvent) or "image.png"
text = "{{" + filename + "}}"
pasteText(text)
uploadFile image.getAsFile(), filename
isImage = (data) ->
i = 0
while i < data.clipboardData.items.length
item = data.clipboardData.items[i]
if item.type.indexOf("image") isnt -1
return item
i++
return false
pasteText = (text) ->
caretStart = $(child)[0].selectionStart
caretEnd = $(child)[0].selectionEnd
textEnd = $(child).val().length
beforeSelection = $(child).val().substring 0, caretStart
afterSelection = $(child).val().substring caretEnd, textEnd
$(child).val beforeSelection + text + afterSelection
form_textarea.trigger "input"
getFilename = (e) ->
if window.clipboardData and window.clipboardData.getData
value = window.clipboardData.getData("Text")
else if e.clipboardData and e.clipboardData.getData
value = e.clipboardData.getData("text/plain")
value = value.split("\r")
value.first()
uploadFile = (item, filename) ->
formData = new FormData()
formData.append "markdown_img", item, filename
$.ajax
url: project_image_path_upload
type: "POST"
data: formData
dataType: "json"
processData: false
contentType: false
headers:
"X-CSRF-Token": $("meta[name=\"csrf-token\"]").attr("content")
beforeSend: ->
showSpinner()
closeAlertMessage()
success: (e, textStatus, response) ->
insertToTextArea(filename, formatLink(response.responseJSON.link))
error: (response) ->
showError(response.responseJSON.message)
complete: ->
closeSpinner()
insertToTextArea = (filename, url) ->
$(child).val (index, val) ->
val.replace("{{" + filename + "}}", url + "\n")
appendToTextArea = (url) ->
$(child).val (index, val) ->
val + url + "\n"
showSpinner = (e) ->
form.find(".div-dropzone-spinner").css
"opacity": 0.7
"display": "inherit"
closeSpinner = ->
form.find(".div-dropzone-spinner").css
"opacity": 0
"display": "none"
showError = (message) ->
checkIfMsgExists = $(".error-alert").children().length
if checkIfMsgExists is 0
$(".error-alert").append divAlert
$(".div-dropzone-alert").append btnAlert + message
closeAlertMessage = ->
form.find(".div-dropzone-alert").alert "close"
form.find(".markdown-selector").click (e) ->
e.preventDefault()
$(@).closest('.gfm-form').find('.div-dropzone').click()
return
formatLink: (str) ->
"![" + str.alt + "](" + str.url + ")"