Check value of "sidebar-page" key

Papers crashes when previously removed "bookmarks" sidebar is set as default
in "sidebar-page" key.
Checking whether the value of "sidebar-page" is among expected values avoids
the crash.

Related: RHEL-74354

papers-47.0-check-sidebar-page.patch

@@ -0,0 +1,98 @@
+From 4de71d6b8276fb82c8ccbe1ed5ed8ca69bf2d612 Mon Sep 17 00:00:00 2001
+From: Marek Kasik <mkasik@redhat.com>
+Date: Tue, 28 Jan 2025 15:58:19 +0100
+Subject: [PATCH] shell: Check value of "sidebar-page" key
+
+Papers crashes when previously removed "bookmarks" sidebar is set as default
+in "sidebar-page" key.
+Checking whether the value of "sidebar-page" is among expected values avoids
+the crash.
+---
+ shell/src/sidebar.rs | 56 +++++++++++++++++++++++++++-----------------
+ 1 file changed, 34 insertions(+), 22 deletions(-)
+
+diff --git a/shell/src/sidebar.rs b/shell/src/sidebar.rs
+index 476548835..394278a9a 100644
+--- a/shell/src/sidebar.rs
++++ b/shell/src/sidebar.rs
+@@ -114,25 +114,46 @@ mod imp {
+             self.stack.visible_child_name().map(|gs| gs.to_string())
+         }
+ 
++        fn set_visible_child_default(&self) {
++            let Some(document) = self.document() else {
++                return;
++            };
++            if self
++                .stack
++                .child_by_name("links")
++                .unwrap()
++                .dynamic_cast_ref::<PpsSidebarPage>()
++                .unwrap()
++                .support_document(&document)
++            {
++                self.stack.set_visible_child_name("links");
++            } else {
++                self.stack.set_visible_child_name("thumbnails");
++            }
++        }
++
+         fn set_visible_child_name(&self, name: Option<String>) {
+             let Some(document) = self.document() else {
+                 return;
+             };
+             let Some(name) = name else {
+-                if self
+-                    .stack
+-                    .child_by_name("links")
+-                    .unwrap()
+-                    .dynamic_cast_ref::<PpsSidebarPage>()
+-                    .unwrap()
+-                    .support_document(&document)
+-                {
+-                    self.stack.set_visible_child_name("links");
+-                } else {
+-                    self.stack.set_visible_child_name("thumbnails");
+-                }
++                self.set_visible_child_default();
+                 return;
+             };
++
++            if ![
++                "annotations",
++                "attachments",
++                "layers",
++                "links",
++                "thumbnails",
++            ]
++            .contains(&name.as_str())
++            {
++                self.set_visible_child_default();
++                return;
++            }
++
+             let page = self.stack.child_by_name(&name).unwrap();
+ 
+             if page
+@@ -141,17 +162,8 @@ mod imp {
+                 .support_document(&document)
+             {
+                 self.stack.set_visible_child(&page);
+-            } else if self
+-                .stack
+-                .child_by_name("links")
+-                .unwrap()
+-                .dynamic_cast_ref::<PpsSidebarPage>()
+-                .unwrap()
+-                .support_document(&document)
+-            {
+-                self.stack.set_visible_child_name("links");
+             } else {
+-                self.stack.set_visible_child_name("thumbnails");
++                self.set_visible_child_default();
+             }
+         }
+     }
+-- 
+2.48.1
+

papers.spec

@@ -42,6 +42,9 @@ Source1:        papers-%{commit}-vendor.tar.xz
 # Patch to make Papers build with snapshot
 Patch:          papers-47.0-snapshot-5de8d26c.patch
 
+# Patch to avoid crash when sidebar-page has unexpected value
+Patch:          papers-47.0-check-sidebar-page.patch
+
 # https://fedoraproject.org/wiki/Changes/EncourageI686LeafRemoval
 ExcludeArch:    %{ix86}