Introduce a new QA::Gitlab::Page::Component::Dropzone class

Signed-off-by: Rémy Coutable <remy@rymai.me>

qa/qa.rb

@@ -150,6 +150,13 @@ module QA
       autoload :Main, 'qa/page/mattermost/main'
       autoload :Login, 'qa/page/mattermost/login'
     end
+
+    ##
+    # Classes describing components that are used by several pages.
+    #
+    module Component
+      autoload :Dropzone, 'qa/page/component/dropzone'
+    end
   end
   ##

qa/qa/page/base.rb

@@ -97,21 +97,6 @@ module QA
         views.map(&:errors).flatten
       end
-      # Not tested and not expected to work with multiple dropzones
-      # instantiated on one page because there is no distinguishing
-      # attribute per dropzone file field.
-      def attach_file_to_dropzone(attachment, dropzone_form_container)
-        filename = File.basename(attachment)
-
-        field_style = { visibility: 'visible', height: '', width: '' }
-        attach_file(attachment, class: 'dz-hidden-input', make_visible: field_style)
-
-        # Wait for link to be appended to dropzone text
-        wait(reload: false) do
-          find("#{dropzone_form_container} textarea").value.match(filename)
-        end
-      end
-
       class DSL
         attr_reader :views

qa/qa/page/component/dropzone.rb

+module QA
+  module Page
+    module Component
+      class Dropzone
+        attr_reader :page, :container
+
+        def initialize(page, container)
+          @page = page
+          @container = container
+        end
+
+        # Not tested and not expected to work with multiple dropzones
+        # instantiated on one page because there is no distinguishing
+        # attribute per dropzone file field.
+        def attach_file(attachment)
+          filename = File.basename(attachment)
+
+          field_style = { visibility: 'visible', height: '', width: '' }
+          page.attach_file(attachment, class: 'dz-hidden-input', make_visible: field_style)
+
+          # Wait for link to be appended to dropzone text
+          page.wait(reload: false) do
+            page.find("#{container} textarea").value.match(filename)
+          end
+        end
+      end
+    end
+  end
+end

qa/qa/page/project/issue/show.rb

@@ -23,10 +23,13 @@ module QA
           # Adds a comment to an issue
           # attachment option should be an absolute path
-          def comment(text, attachment:)
+          def comment(text, attachment: nil)
             fill_in(with: text, name: 'note[note]')
-            attach_file_to_dropzone(attachment, '.new-note') if attachment
+            unless attachment.nil?
+              QA::Page::Component::Dropzone.new(page, '.new-note')
+                .attach_file(attachment)
+            end
             click_on 'Comment'
           end