Show radio button for single cert

Resolves: RHEL-111480

papers-48.7-single-signature-selection.patch

@@ -0,0 +1,117 @@
+From 66dd2a1d2c327916cc0be4aa184e4388762f73f6 Mon Sep 17 00:00:00 2001
+From: Marek Kasik <mkasik@redhat.com>
+Date: Fri, 12 Dec 2025 12:02:13 +0100
+Subject: [PATCH 1/3] shell: Show radio button for single cert
+
+Show radio button instead of check button when there is only 1 signing
+certificate. Make it insensitive so it can not be unselected.
+---
+ shell/src/document_view/io.rs | 10 +++++++---
+ 1 file changed, 7 insertions(+), 3 deletions(-)
+
+diff --git a/shell/src/document_view/io.rs b/shell/src/document_view/io.rs
+index 422da4879..75eaefa5c 100644
+--- a/shell/src/document_view/io.rs
++++ b/shell/src/document_view/io.rs
+@@ -538,7 +538,10 @@ impl imp::PpsDocumentView {
+                 .css_classes(["content"])
+                 .build();
+ 
+-            let mut check_button_group = None;
++            // Create dummy button to group with
++            let check_button_group = Some(gtk::CheckButton::new());
++            let multi_certs = certs.len() > 1;
++            let mut first_cert = true;
+ 
+             for cert in certs {
+                 let row = adw::ActionRow::builder()
+@@ -547,6 +550,7 @@ impl imp::PpsDocumentView {
+                     .build();
+ 
+                 let check_button = gtk::CheckButton::builder()
++                    .sensitive(multi_certs)
+                     .valign(gtk::Align::Center)
+                     .build();
+ 
+@@ -577,12 +581,12 @@ impl imp::PpsDocumentView {
+ 
+                 check_button.set_group(check_button_group.as_ref());
+ 
+-                if check_button_group.is_none() {
++                if first_cert {
+                     check_button.set_active(true);
+-                    check_button_group = Some(check_button);
+                 }
+ 
+                 list_box.insert(&row, -1);
++                first_cert = false;
+             }
+ 
+             list_box.select_row(list_box.row_at_index(0).as_ref());
+-- 
+2.52.0
+
+From f7d74779003c84bec3c0ccca5cb8fa9c88365725 Mon Sep 17 00:00:00 2001
+From: Lucas Baudin <lbaudin@gnome.org>
+Date: Thu, 18 Dec 2025 14:35:47 +0000
+Subject: [PATCH 2/3] shell: Keep a reference to check_button_group
+
+Keep a strong reference to check_button_group to avoid it being freed.
+---
+ shell/src/document_view/io.rs | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/shell/src/document_view/io.rs b/shell/src/document_view/io.rs
+index 75eaefa5c..4a768d7b2 100644
+--- a/shell/src/document_view/io.rs
++++ b/shell/src/document_view/io.rs
+@@ -550,7 +550,6 @@ impl imp::PpsDocumentView {
+                     .build();
+ 
+                 let check_button = gtk::CheckButton::builder()
+-                    .sensitive(multi_certs)
+                     .valign(gtk::Align::Center)
+                     .build();
+ 
+@@ -558,9 +557,14 @@ impl imp::PpsDocumentView {
+                 row.set_activatable_widget(Some(&check_button));
+ 
+                 check_button.connect_toggled(glib::clone!(
++                    /* Keep a strong reference to check_button_group to avoid it being freed */
++                    #[strong(rename_to = group)]
++                    check_button_group,
+                     #[weak(rename_to = obj)]
+                     self,
+                     move |button| {
++                        /* make sure the strong reference to group is not disposed */
++                        let _ = group.as_ref().unwrap();
+                         if button.is_active() {
+                             let row = button
+                                 .ancestor(adw::ActionRow::static_type())
+-- 
+2.52.0
+
+From e15ab6f70de98b1e1692e9998b2cffef8189b3a9 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Marek=20Ka=C5=A1=C3=ADk?= <mkasik@redhat.com>
+Date: Thu, 18 Dec 2025 14:36:56 +0000
+Subject: [PATCH 3/3] shell: Remove redundant variable
+
+---
+ shell/src/document_view/io.rs | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/shell/src/document_view/io.rs b/shell/src/document_view/io.rs
+index 4a768d7b2..ec9863c75 100644
+--- a/shell/src/document_view/io.rs
++++ b/shell/src/document_view/io.rs
+@@ -540,7 +540,6 @@ impl imp::PpsDocumentView {
+ 
+             // Create dummy button to group with
+             let check_button_group = Some(gtk::CheckButton::new());
+-            let multi_certs = certs.len() > 1;
+             let mut first_cert = true;
+ 
+             for cert in certs {
+-- 
+2.52.0
+

papers.spec

@@ -44,6 +44,7 @@ Patch:          papers-48.7-lower-requirements.patch
 
 Patch:          papers-48.7-implement-accessible-text-for-pps-view.patch
 Patch:          papers-48.7-use-correct-role-for-pps-view.patch
+Patch:          papers-48.7-single-signature-selection.patch
 
 # https://fedoraproject.org/wiki/Changes/EncourageI686LeafRemoval
 ExcludeArch:    %{ix86}