Improve export text and button (#177)

Co-authored-by: lcduong <[email protected]>

Author: lcduong

src/pretalx/agenda/templates/agenda/header_row.html

@@ -24,7 +24,7 @@
             <span>{% translate "Version" %} <a href="{{ request.event.urls.changelog }}">{{ schedule.version|default:"–" }}</a></span>
             <details class="dropdown">
                 <summary class="btn btn-sm btn-outline-info">
-                    <i class="fa fa-code"></i><i class="fa fa-caret-down"></i>
+                    <i class="fa fa-calendar-plus-o"></i> Add to Calendar <i class="fa fa-caret-down"></i>
                 </summary>
                 <ul class="dropdown-content dropdown-content-s{% if rtl %}e{% else %}w{% endif %}">
                     {% for exporter in exporters %}{% if exporter.public %}

src/pretalx/common/exporter.py

@@ -1,6 +1,6 @@
-from io import StringIO
+import base64
+from io import StringIO, BytesIO
 from urllib.parse import quote
-from xml.etree import ElementTree as ET
 
 import qrcode
 import qrcode.image.svg
@@ -94,10 +94,27 @@ class urls(EventUrls):
         base = "{self.event.urls.export}{self.quoted_identifier}"
 
     def get_qrcode(self):
-        image = qrcode.make(
-            self.urls.base.full(), image_factory=qrcode.image.svg.SvgImage
+        # Generate QR code
+        qr = qrcode.QRCode(
+            version=1,
+            error_correction=qrcode.constants.ERROR_CORRECT_L,
+            box_size=5,
+            border=4,
         )
-        return mark_safe(ET.tostring(image.get_image()).decode())
+        qr.add_data(self.urls.base.full())
+        qr.make(fit=True)
+
+        # Create an image from the QR Code instance
+        img = qr.make_image(fill_color="black", back_color="white")
+        # Convert the image to a data URL
+        buffer = BytesIO()
+        img.save(buffer, format="PNG")
+        img_str = base64.b64encode(buffer.getvalue()).decode()
+
+        # Use the data URL in an HTML img tag
+        html_img = f'<img src="data:image/png;base64,{img_str}" alt="QR Code"/>'
+
+        return mark_safe(html_img)
 
 
 class CSVExporterMixin:

src/pretalx/schedule/exporters.py

@@ -114,7 +114,7 @@ def data(self):
 
 class FrabXmlExporter(ScheduleData):
     identifier = "schedule.xml"
-    verbose_name = "XML (frab compatible)"
+    verbose_name = "Sessions XML"
     public = True
     show_qrcode = True
     favs_retrieve = False
@@ -147,13 +147,13 @@ def render(self, **kwargs):
 
 class MyFrabXmlExporter(FrabXmlExporter):
     identifier = "schedule-my.xml"
-    verbose_name = "My XML (frab compatible)"
+    verbose_name = "My ⭐ Sessions XML"
     favs_retrieve = True
 
 
 class FrabXCalExporter(ScheduleData):
     identifier = "schedule.xcal"
-    verbose_name = "XCal (frab compatible)"
+    verbose_name = "Sessions XCAL"
     public = True
     favs_retrieve = False
     talk_ids = []
@@ -178,13 +178,13 @@ def render(self, **kwargs):
 
 class MyFrabXCalExporter(FrabXCalExporter):
     identifier = "schedule-my.xcal"
-    verbose_name = "My XCal (frab compatible)"
+    verbose_name = "My ⭐ Sessions XCAL"
     favs_retrieve = True
 
 
 class FrabJsonExporter(ScheduleData):
     identifier = "schedule.json"
-    verbose_name = "JSON (frab compatible)"
+    verbose_name = "Sessions JSON"
     public = True
     favs_retrieve = False
     talk_ids = []
@@ -338,13 +338,13 @@ def render(self, **kwargs):
 
 class MyFrabJsonExporter(FrabJsonExporter):
     identifier = "schedule-my.json"
-    verbose_name = "My JSON (frab compatible)"
+    verbose_name = "My ⭐ Sessions JSON"
     favs_retrieve = True
 
 
 class ICalExporter(BaseExporter):
     identifier = "schedule.ics"
-    verbose_name = "iCal"
+    verbose_name = "Sessions iCal"
     public = True
     show_qrcode = True
     favs_retrieve = False
@@ -378,5 +378,5 @@ def render(self, **kwargs):
 
 class MyICalExporter(ICalExporter):
     identifier = "schedule-my.ics"
-    verbose_name = "My iCal"
+    verbose_name = "My ⭐ Sessions iCal"
     favs_retrieve = True