fixes for accessibility of complex objects

hyrax/app/assets/javascripts/rdms.js

@@ -2,21 +2,23 @@ $(document).on('ready', function() {
   if ($('#agreementModal').length > 0){
     $('#agreementModal').modal('show');
   }
-
+  let scrollTimeout;
   $('#agreementModal .modal-body').on('scroll', function() {
     action_buttons = $('#agreementModal .modal-footer > a')
-
-    if ($(this)[0].scrollTop + $(this)[0].clientHeight >= $(this)[0].scrollHeight) {
-      // Enable the buttons when user reaches the bottom
-      action_buttons.attr('disabled', false);
-      action_buttons.each(function(){
-        $(this).attr('href', $(this).data('url'))
-      })
-        
-    }
-    else{
-      action_buttons.attr('disabled', 'disabled');
-      action_buttons.attr('href', "javascript:void(0)")
-    }
+    clearTimeout(scrollTimeout);
+    scrollTimeout = setTimeout(() => {
+      if (($(this)[0].scrollTop + $(this)[0].clientHeight + 10) >= $(this)[0].scrollHeight) {
+        // Enable the buttons when user reaches the bottom
+        action_buttons.attr('disabled', false);
+        action_buttons.each(function(){
+          $(this).attr('href', $(this).data('url'))
+        })
+          
+      }
+      else{
+        action_buttons.attr('disabled', 'disabled');
+        action_buttons.attr('href', "javascript:void(0)")
+      }
+    }, 500);
   });
 });

hyrax/app/controllers/hyrax/crc_datasets/complex_modalities_controller.rb

@@ -4,11 +4,11 @@ module Hyrax
   module CrcDatasets
     class ComplexModalitiesController < ApplicationController
       include ComplexHelper
-      before_action :set_crc_dataset, except: %i[validate_modality_title]
+      before_action :set_crc_dataset
       before_action :set_complex_session, only: %i[new create validate_modality_title]
       before_action :set_complex_modality, only: %i[show edit update]
       before_action :check_tombstone, except: %i[validate_modality_title]
-      before_action :authorize, only: [:new, :edit]
+      before_action :authorize
       with_themed_layout :decide_layout
 
       def new
@@ -108,10 +108,6 @@ module Hyrax
           redirect_to main_app.polymorphic_path(@crc_dataset)
         end
       end
-
-      def authorize
-        redirect_to main_app.polymorphic_path(@crc_dataset) unless current_user.can?(:edit, @crc_dataset)
-      end
     end
   end
 end

hyrax/app/controllers/hyrax/crc_datasets/complex_sessions_controller.rb

@@ -5,11 +5,11 @@ module Hyrax
     class ComplexSessionsController < ApplicationController
       include HyraxHelper
       include ComplexHelper
-      before_action :set_crc_dataset, except: %i[validate_session_title]
+      before_action :set_crc_dataset
       before_action :set_complex_subject, only: %i[new create validate_session_title]
       before_action :set_complex_session, only: %i[show edit update]
       before_action :check_tombstone, except: %i[validate_session_title]
-      before_action :authorize, only: [:new, :edit]
+      before_action :authorize
       with_themed_layout :decide_layout
 
       def new
@@ -110,10 +110,6 @@ module Hyrax
           redirect_to main_app.polymorphic_path(@crc_dataset)
         end
       end
-
-      def authorize
-        redirect_to main_app.polymorphic_path(@crc_dataset) unless current_user.can?(:edit, @crc_dataset)
-      end
     end
   end
 end

hyrax/app/controllers/hyrax/crc_datasets/complex_subjects_controller.rb

@@ -8,7 +8,7 @@ module Hyrax
       before_action :set_crc_dataset
       before_action :set_complex_subject, only: %i[show edit update]
       before_action :check_tombstone, except: %i[validate_subject_title]
-      before_action :authorize, only: [:new, :edit]
+      before_action :authorize
       with_themed_layout :decide_layout
 
       def new
@@ -101,10 +101,6 @@ module Hyrax
           redirect_to main_app.polymorphic_path(@crc_dataset)
         end
       end
-
-      def authorize
-        redirect_to main_app.polymorphic_path(@crc_dataset) unless current_user.can?(:edit, @crc_dataset)
-      end
     end
   end
 end

hyrax/app/helpers/complex_helper.rb

@@ -30,4 +30,15 @@ module ComplexHelper
     title.sub!(/-s3alias\z/i, '')
     title
   end
+  
+  private
+
+  def authorize
+    case action_name
+    when 'show'
+      authorize! :show, @crc_dataset
+    else
+      authorize! :edit, @crc_dataset
+    end
+  end
 end
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