Remove PDF generation and make HTML one printable

Gemfile

@@ -77,5 +77,3 @@ group :test do
 end
 
 gem "pundit", "~> 2.5"
-
-gem "ferrum_pdf", "~> 3.0"

Gemfile.lock

@@ -128,15 +128,6 @@ GEM
       railties (>= 6.1.0)
     faker (3.5.2)
       i18n (>= 1.8.11, < 2)
-    ferrum (0.17.1)
-      addressable (~> 2.5)
-      base64 (~> 0.2)
-      concurrent-ruby (~> 1.1)
-      webrick (~> 1.7)
-      websocket-driver (~> 0.7)
-    ferrum_pdf (3.0.1)
-      actionpack (>= 6.0.0)
-      ferrum (~> 0.15)
     friendly_id (5.5.1)
       activerecord (>= 4.0.0)
     fugit (1.12.1)
@@ -429,7 +420,6 @@ GEM
       activemodel (>= 6.0.0)
       bindex (>= 0.4.0)
       railties (>= 6.0.0)
-    webrick (1.9.1)
     websocket (1.2.11)
     websocket-driver (0.8.0)
       base64
@@ -462,7 +452,6 @@ DEPENDENCIES
   debug
   factory_bot_rails
   faker
-  ferrum_pdf (~> 3.0)
   friendly_id (~> 5.5.0)
   importmap-rails
   jbuilder

app/controllers/contestants_controller.rb

@@ -131,13 +131,8 @@ class ContestantsController < ApplicationController
     @contestants = @contest.contestants.sort_by { |contestant| contestant.name }
     @nonav = true
 
-    FerrumPdf.configure do |config|
-      config.process_timeout = 20
-    end
-
     respond_to do |format|
-      format.html
+      format.html { render layout: "blank" }
-      format.pdf { render ferrum_pdf: {}, disposition: :inline, filename: "#{@contest.friendly_id}_qrcodes.pdf", layout: "blank" }
     end
   end
 

app/views/contestants/generate_qrcodes.html.slim

@@ -5,8 +5,8 @@
         .alert.alert-info
           = t("contestants.generate_qrcodes.note")
 
-    a.mt-3.mb-3.btn.btn-primary href="#{contest_generate_qrcodes_pdf_path(@contest)}.pdf" target="_blank" style="margin-top: -3px"
+    a.mt-3.mb-3.btn.btn-primary href="#{contest_generate_qrcodes_pdf_path(@contest)}" target="_blank" style="margin-top: -3px"
-      = t("helpers.buttons.download_pdf")
+      = t("helpers.buttons.open_raw")
   
     .col.d-flex.flex-column style="height: calc(100% - 200px)"
       .d-flex.flex-column style="overflow-y: auto;"

app/views/contestants/generate_qrcodes_pdf.html.slim

@@ -1,10 +1,11 @@
-h1.text-center.mb-5 = @contest.name
+h1.text-center.mt-4.mb-4 = @contest.name
 
-- for row in 0..((@contestants.length - 1) / 5)
+.d-flex.flex-column.align-items-center
+  - for row in 0..((@contestants.length - 1) / 5)
     .mt-4.d-flex.flex-row
       - for col in 0..3
         - if row * 4 + col < @contestants.length
-        .d-flex.flex-column.ms-5 style="align-items: center"
+          .d-flex.flex-column.ms-4.me-4 style="align-items: center"
             - if @contestants[row * 4 + col].qrcode.present?
               .mt-1 style="width: 128px; height: 120px;"
                 = @contestants[row * 4 + col].qrcode.html_safe

config/locales/en.yml

@@ -271,6 +271,7 @@ en:
       generate_qrcodes: Generate QR codes
       import: CSV Import
       open: Open
+      open_raw: Open in a raw page
       refresh: Refresh
       settings: Settings
       sign_in: Sign in

config/locales/fr.yml

@@ -242,6 +242,7 @@ fr:
       generate_qrcodes: Générer des QR codes
       import: Importer un CSV
       open: Détails
+      open_raw: Ouvrir dans un format imprimable
       refresh: Rafraîchir
       settings: Paramètres
       sign_in: Se connecter