Revert "Implements and refactors clipboard feature for markdown."

This reverts commit 22732346.
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Conflicts:
	app/views/projects/issues/_form.html.haml
	app/views/projects/merge_requests/_form.html.haml
	app/views/projects/merge_requests/_new_submit.html.haml
	app/views/projects/milestones/_form.html.haml
	app/views/projects/notes/_form.html.haml
	app/views/projects/wikis/_form.html.haml

app/assets/javascripts/markdown_area.js.coffee

+formatLink = (str) ->
+  "![" + str.alt + "](" + str.url + ")"
+
 $(document).ready ->
   alertClass = "alert alert-danger alert-dismissable div-dropzone-alert"
   alertAttr = "class=\"close\" data-dismiss=\"alert\"" + "aria-hidden=\"true\""
@@ -10,12 +13,15 @@ $(document).ready ->
   project_image_path_upload = window.project_image_path_upload or null
 
   $("textarea.markdown-area").wrap "<div class=\"div-dropzone\"></div>"  
+  
   $(".div-dropzone").parent().addClass "div-dropzone-wrapper"
+
   $(".div-dropzone").append divHover
   $(".div-dropzone-hover").append iconPicture
   $(".div-dropzone").append divSpinner 
   $(".div-dropzone-spinner").append iconSpinner
 
+
   dropzone = $(".div-dropzone").dropzone(
     url: project_image_path_upload
     dictDefaultMessage: ""
@@ -30,7 +36,7 @@ $(document).ready ->
     previewContainer: false
 
     processing: ->
-      closeAlertMessage()
+      $(".div-dropzone-alert").alert "close"
 
     dragover: ->
       $(".div-dropzone > textarea").addClass "div-dropzone-focus"
@@ -49,127 +55,31 @@ $(document).ready ->
       return
 
     success: (header, response) ->
-      appendToTextArea(formatLink(response.link))
+      child = $(dropzone[0]).children("textarea")
+      $(child).val $(child).val() + formatLink(response.link) + "\n"
       return
 
     error: (temp, errorMessage) ->
-      showError(errorMessage)
+      checkIfMsgExists = $(".error-alert").children().length
+      if checkIfMsgExists is 0
+        $(".error-alert").append divAlert
+        $(".div-dropzone-alert").append btnAlert + errorMessage
       return
 
     sending: ->
-      showSpinner()
+      $(".div-dropzone-spinner").css "opacity", 0.7
       return
 
     complete: ->
       $(".dz-preview").remove()
       $(".markdown-area").trigger "input"
-      closeSpinner()
+      $(".div-dropzone-spinner").css "opacity", 0
       return
   )
 
-  child = $(dropzone[0]).children("textarea")
-
-  formatLink = (str) ->
-    "![" + str.alt + "](" + str.url + ")"
-
-  handlePaste = (e) ->
-    e.preventDefault()
-    my_event = e.originalEvent
-    
-    if my_event.clipboardData and my_event.clipboardData.items
-      i = 0
-      while i < my_event.clipboardData.items.length
-        item = my_event.clipboardData.items[i]
-        processItem(my_event, item)
-        i++
-
-  processItem = (e, item) ->
-    if isImage(item)
-      filename = getFilename(e) or "image.png"
-      text = "{{" + filename + "}}"
-      pasteText(text)
-      uploadFile item.getAsFile(), filename
-    else if e.clipboardData.items.length == 1
-      text = e.clipboardData.getData("text/plain")
-      pasteText(text)
-
-  isImage = (item) ->
-    if item
-      item.type.indexOf("image") isnt -1
-
-  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
-    $(".markdown-area").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) ->
-    $(".div-dropzone-spinner").css "opacity", 0.7
-
-  closeSpinner = ->
-    $(".div-dropzone-spinner").css "opacity", 0
-
-  showError = (message) ->
-    checkIfMsgExists = $(".error-alert").children().length
-    if checkIfMsgExists is 0
-      $(".error-alert").append divAlert
-      $(".div-dropzone-alert").append btnAlert + message
-
-  closeAlertMessage = ->
-    $(".div-dropzone-alert").alert "close"
-
   $(".markdown-selector").click (e) ->
     e.preventDefault()
     $(".div-dropzone").click()
     return
 
-  $(".div-dropzone").on "paste", handlePaste
-
   return
\ No newline at end of file

app/assets/stylesheets/generic/markdown_area.scss

@@ -43,11 +43,6 @@
       display: none;
     }
   }
-  
-  .hint {
-    padding: 0;
-    margin: 0;
-  }
 }
 
 .div-dropzone-alert {

app/controllers/projects_controller.rb

@@ -11,8 +11,6 @@ class ProjectsController < ApplicationController
   layout 'navless', only: [:new, :create, :fork]
   before_filter :set_title, only: [:new, :create]
 
-  rescue_from CarrierWave::IntegrityError, with: :invalid_file
-
   def new
     @project = Project.new
   end
@@ -187,10 +185,6 @@ class ProjectsController < ApplicationController
     %w(png jpg jpeg gif)
   end
 
-  def invalid_file(error)
-    render json: { message: error.message }, status: :internal_server_error
-  end
-
   def set_title
     @title = 'New Project'
   end

app/views/projects/issues/_form.html.haml

@@ -23,7 +23,7 @@
         = f.text_area :description, class: 'form-control js-gfm-input markdown-area', rows: 14
         .col-sm-12.hint
           .pull-left Issues are parsed with #{link_to "GitLab Flavored Markdown", help_page_path("markdown", "markdown"), target: '_blank'}.
-          .pull-right Attach images (JPG, PNG, GIF) by dragging & dropping, #{link_to "selecting them", '#', class: 'markdown-selector' } or pasting from the clipboard.
+          .pull-right Attach images (JPG, PNG, GIF) by dragging & dropping or #{link_to "selecting them", '#', class: 'markdown-selector' }.
         .clearfix
         .error-alert
     %hr

app/views/projects/merge_requests/_form.html.haml

@@ -25,7 +25,7 @@
         = f.text_area :description, class: "form-control js-gfm-input markdown-area", rows: 14
         .col-sm-12.hint
           .pull-left Description is parsed with #{link_to "GitLab Flavored Markdown", help_page_path("markdown", "markdown"), target: '_blank'}.
-          .pull-right Attach images (JPG, PNG, GIF) by dragging & dropping, #{link_to "selecting them", '#', class: 'markdown-selector' } or pasting from the clipboard.
+          .pull-right Attach images (JPG, PNG, GIF) by dragging & dropping or #{link_to "selecting them", '#', class: 'markdown-selector' }.
         .clearfix
         .error-alert
     %hr

app/views/projects/merge_requests/_new_submit.html.haml

@@ -26,7 +26,7 @@
         = f.text_area :description, class: "form-control js-gfm-input markdown-area", rows: 10
         .col-sm-12.hint
           .pull-left Description is parsed with #{link_to "GitLab Flavored Markdown", help_page_path("markdown", "markdown"), target: '_blank'}.
-          .pull-right Attach images (JPG, PNG, GIF) by dragging & dropping, #{link_to "selecting them", '#', class: 'markdown-selector' } or pasting from the clipboard.
+          .pull-right Attach images (JPG, PNG, GIF) by dragging & dropping or #{link_to "selecting them", '#', class: 'markdown-selector' }.
         .clearfix
         .error-alert
       .form-group

app/views/projects/milestones/_form.html.haml

@@ -24,7 +24,7 @@
           = f.text_area :description, maxlength: 2000, class: "form-control markdown-area", rows: 10
           .hint
             .pull-left Milestones are parsed with #{link_to "GitLab Flavored Markdown", help_page_path("markdown", "markdown"), target: '_blank'}.
-            .pull-left Attach images (JPG, PNG, GIF) by dragging & dropping, #{link_to "selecting them", '#', class: 'markdown-selector' } or pasting from the clipboard.
+            .pull-left Attach images (JPG, PNG, GIF) by dragging & dropping or #{link_to "selecting them", '#', class: 'markdown-selector' }.
           .clearfix
           .error-alert
     .col-md-6

app/views/projects/notes/_form.html.haml

@@ -16,10 +16,10 @@
     .note-write-holder
       = f.text_area :note, size: 255, class: 'note_text js-note-text js-gfm-input markdown-area'
 
-      .light.clearfix.hint
+      .light.clearfix
         .pull-left Comments are parsed with #{link_to "GitLab Flavored Markdown", help_page_path("markdown", "markdown"), target: '_blank'}
-        .pull-right Attach images (JPG, PNG, GIF) by dragging & dropping, #{link_to "selecting them", '#', class: 'markdown-selector' } or pasting from the clipboard.      
-      .error-alert
+        .pull-right Attach images (JPG, PNG, GIF) by dragging & dropping or #{link_to "selecting them", '#', class: 'markdown-selector' }.
+
     .note-preview-holder.hide
       .js-note-preview
 

app/views/projects/wikis/_form.html.haml

@@ -25,7 +25,7 @@
       = f.text_area :content, class: 'form-control js-gfm-input markdown-area', rows: 18
       .col-sm-12.hint
         .pull-left Wiki content is parsed with #{link_to "GitLab Flavored Markdown", help_page_path("markdown", "markdown"), target: '_blank'}
-        .pull-right Attach images (JPG, PNG, GIF) by dragging & dropping, #{link_to "selecting them", '#', class: 'markdown-selector' } or pasting from the clipboard.
+        .pull-right Attach images (JPG, PNG, GIF) by dragging & dropping or #{link_to "selecting them", '#', class: 'markdown-selector' }.
       .clearfix
       .error-alert
   .form-group