Preserve transaction filters and transaction focus across page visits (#1733)

* Preserve transaction filters across page visits

* Preserve params when per_page is updated

* Autofocus selected transactions

* Lint fixes

* Fix syntax error

* Fix filter clearing

* Update e2e tests for new UI

* Consolidate focus behavior into concern

* Lint fixes

app/controllers/concerns/accountable_resource.rb

@@ -2,6 +2,8 @@ module AccountableResource
   extend ActiveSupport::Concern
 
   included do
+    include ScrollFocusable
+
     layout :with_sidebar
     before_action :set_account, only: [ :show, :edit, :update, :destroy ]
     before_action :set_link_token, only: :new
@@ -22,6 +24,12 @@ module AccountableResource
   end
 
   def show
+    @q = params.fetch(:q, {}).permit(:search)
+    entries = @account.entries.search(@q).reverse_chronological
+
+    set_focused_record(entries, params[:focused_record_id])
+
+    @pagy, @entries = pagy(entries, limit: params[:per_page] || "10", params: ->(params) { params.except(:focused_record_id) })
   end
 
   def edit

app/controllers/concerns/scroll_focusable.rb

@@ -0,0 +1,21 @@
+module ScrollFocusable
+  extend ActiveSupport::Concern
+
+  def set_focused_record(record_scope, record_id, default_per_page: 10)
+    return unless record_id.present?
+
+    @focused_record = record_scope.find_by(id: record_id)
+
+    record_index = record_scope.pluck(:id).index(record_id)
+
+    return unless record_index
+
+    page_of_focused_record = (record_index / (params[:per_page]&.to_i || default_per_page)) + 1
+
+    if params[:page]&.to_i != page_of_focused_record
+      (
+        redirect_to(url_for(page: page_of_focused_record, focused_record_id: record_id))
+      )
+    end
+  end
+end