Move reply button to helper from view

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/helpers/notes_helper.rb

@@ -61,4 +61,21 @@ module NotesHelper
     link_to "", "javascript:;", class: "add-diff-note js-add-diff-note-button",
       data: data, title: "Add a comment to this line"
   end
+
+  def link_to_reply_diff(note)
+    data = {
+      noteable_type: note.noteable_type,
+      noteable_id:   note.noteable_id,
+      commit_id:     note.commit_id,
+      line_code:     note.line_code,
+      discussion_id: note.discussion_id
+    }
+
+    link_to "javascript:;", class: "btn reply-btn js-discussion-reply-button",
+      data: data, title: "Add a reply" do
+      link_text = ""
+      link_text < content_tag(:i, nil, class: 'icon-comment')
+      link_text << "Reply"
+      end
+  end
 end

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

@@ -9,5 +9,4 @@
     %td.notes_content
       %ul.notes{ rel: note.discussion_id }
         = render notes
-
-      = render "projects/notes/discussion_reply_button", note: note
+      = link_to_reply_diff(note)

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

@@ -12,7 +12,7 @@
       %ul.notes{ rel: note1.discussion_id }
         = render notes1
 
-      = render "projects/notes/discussion_reply_button", note: note1
+      = link_to_reply_diff(note1)
   - else
     %td= ""
     %td= ""
@@ -26,7 +26,7 @@
       %ul.notes{ rel: note2.discussion_id }
         = render notes2
 
-      = render "projects/notes/discussion_reply_button", note: note2
+      = link_to_reply_diff(note2)
   - else
     %td= ""
     %td= ""

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

@@ -43,4 +43,4 @@
     - else
       .notes{ rel: discussion_notes.first.discussion_id }
         = render discussion_notes
-      = render "projects/notes/discussion_reply_button", note: discussion_notes.first
+      = link_to_reply_diff(discussion_notes.first)

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

-= link_to "javascript:;",
-          class: "btn reply-btn js-discussion-reply-button",
-          data: { noteable_type: note.noteable_type,
-                  noteable_id:   note.noteable_id,
-                  commit_id:     note.commit_id,
-                  line_code:     note.line_code,
-                  discussion_id: note.discussion_id },
-          title: "Add a reply" do
-  %i.icon-comment
-  Reply