Re-label cart button if cart is not visible or all products are free

src/pretix/presale/templates/pretixpresale/event/checkout_confirm.html

@@ -189,6 +189,7 @@
             </div>
             <div class="col-md-4 col-md-offset-4">
                 <button class="btn btn-block btn-primary btn-lg" type="submit">
+                    <span class="fa fa-lock"></span>
                     {% if cart.total > 0 %}
                         {% trans "Place binding order" %}
                     {% else %}

src/pretix/presale/templates/pretixpresale/event/index.html

@@ -241,7 +241,15 @@
                         <div class="row-fluid">
                             <div class="col-md-4 col-md-offset-8 col-xs-12">
                                 <button class="btn btn-block btn-primary btn-lg" type="submit" id="btn-add-to-cart">
-                                    <i class="fa fa-shopping-cart"></i> {% trans "Add to cart" %}
+                                    {% if request.event.settings.redirect_to_checkout_directly %}
+                                        {% if allfree %}
+                                            <i class="fa fa-check"></i> {% trans "Register" %}
+                                        {% else %}
+                                           <i class="fa fa-shopping-cart"></i> {% trans "Proceed with checkout" %}
+                                        {% endif %}
+                                    {% else %}
+                                        <i class="fa fa-shopping-cart"></i> {% trans "Add to cart" %}
+                                    {% endif %}
                                 </button>
                             </div>
                             <div class="clearfix"></div>

src/pretix/presale/templates/pretixpresale/event/voucher.html

@@ -338,7 +338,15 @@
                 <div class="row-fluid checkout-button-row">
                     <div class="col-md-4 col-md-offset-8 col-xs-12">
                         <button class="btn btn-block btn-primary btn-lg" id="btn-add-to-cart" type="submit">
-                            <i class="fa fa-shopping-cart"></i> {% trans "Add to cart" %}
+                            {% if request.event.settings.redirect_to_checkout_directly %}
+                                {% if allfree %}
+                                    <i class="fa fa-check"></i> {% trans "Register" %}
+                                {% else %}
+                                    <i class="fa fa-shopping-cart"></i> {% trans "Proceed with checkout" %}
+                                {% endif %}
+                            {% else %}
+                                <i class="fa fa-shopping-cart"></i> {% trans "Add to cart" %}
+                            {% endif %}
                         </button>
                     </div>
                     <div class="clearfix"></div>

src/pretix/presale/views/cart.py

@@ -1,6 +1,7 @@
 import json
 import mimetypes
 import os
+from decimal import Decimal
 
 from django.conf import settings
 from django.contrib import messages
@@ -455,6 +456,16 @@ class RedeemView(NoSearchIndexViewMixin, EventViewMixin, TemplateView):
         context['options'] = sum([(len(item.available_variations) if item.has_variations else 1)
                                   for item in items])
 
+        context['allfree'] = all(
+            item.display_price.gross == Decimal('0.00') for item in items if not item.has_variations
+        ) and all(
+            all(
+                var.display_price.gross == Decimal('0.00')
+                for var in item.available_variations
+            )
+            for item in items if item.has_variations
+        )
+
         # Regroup those by category
         context['items_by_category'] = item_group_by_category(items)
 

src/pretix/presale/views/event.py

@@ -2,6 +2,7 @@ import calendar
 import sys
 from collections import defaultdict
 from datetime import date, datetime, timedelta
+from decimal import Decimal
 from importlib import import_module
 
 import pytz
@@ -319,6 +320,15 @@ class EventIndex(EventViewMixin, EventListMixin, CartMixin, TemplateView):
             items, display_add_to_cart = get_grouped_items(self.request.event, self.subevent,
                                                            channel=self.request.sales_channel.identifier)
             context['itemnum'] = len(items)
+            context['allfree'] = all(
+                item.display_price.gross == Decimal('0.00') for item in items if not item.has_variations
+            ) and all(
+                all(
+                    var.display_price.gross == Decimal('0.00')
+                    for var in item.available_variations
+                )
+                for item in items if item.has_variations
+            )
 
             # Regroup those by category
             context['items_by_category'] = item_group_by_category(items)