From 7565a0353989ba693a177025199b3e4da24cdc62 Mon Sep 17 00:00:00 2001
From: Fabricio Silva <hi@fabricio.dev>
Date: Tue, 5 May 2026 23:46:56 +0100
Subject: [PATCH] Add "screensaver" gallery to intermissions (same as Nickel
 default behaviour)

---
 contrib/Settings-sample.toml         |  2 +-
 crates/core/src/settings/mod.rs      |  1 +
 crates/core/src/view/intermission.rs | 23 ++++++++++++++++++++++-
 3 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/contrib/Settings-sample.toml b/contrib/Settings-sample.toml
index 84f8ae5..d4f963f 100644
--- a/contrib/Settings-sample.toml
+++ b/contrib/Settings-sample.toml
@@ -67,7 +67,7 @@ name = "KePub"
 path = "/mnt/onboard/.kobo/kepub"
 
 # Defines the images displayed when entering an intermission.
-# Possible values: "logo:", "cover:", "/path/to/image/file".
+# Possible values: "logo:", "cover:", "screensaver:", "/path/to/image/file".
 # If a relative file path is given, it will be relative to
 # the installation directory.
 [intermissions]
diff --git a/crates/core/src/settings/mod.rs b/crates/core/src/settings/mod.rs
index 2a270ab..c55f989 100644
--- a/crates/core/src/settings/mod.rs
+++ b/crates/core/src/settings/mod.rs
@@ -21,6 +21,7 @@ pub const INTERNAL_CARD_ROOT: &str = "/mnt/onboard";
 pub const EXTERNAL_CARD_ROOT: &str = "/mnt/sd";
 pub const LOGO_SPECIAL_PATH: &str = "logo:";
 pub const COVER_SPECIAL_PATH: &str = "cover:";
+pub const SCREENSAVER_SPECIAL_PATH: &str = "screensaver:";
 // Default font size in points.
 pub const DEFAULT_FONT_SIZE: f32 = 11.0;
 // Default margin width in millimeters.
diff --git a/crates/core/src/view/intermission.rs b/crates/core/src/view/intermission.rs
index 8811d52..7b4202e 100644
--- a/crates/core/src/view/intermission.rs
+++ b/crates/core/src/view/intermission.rs
@@ -5,7 +5,7 @@ use crate::geom::Rectangle;
 use crate::font::{Fonts, font_from_style, DISPLAY_STYLE};
 use super::{View, Event, Hub, Bus, Id, ID_FEEDER, RenderQueue};
 use crate::framebuffer::Framebuffer;
-use crate::settings::{IntermKind, LOGO_SPECIAL_PATH, COVER_SPECIAL_PATH};
+use crate::settings::{IntermKind, LOGO_SPECIAL_PATH, COVER_SPECIAL_PATH, SCREENSAVER_SPECIAL_PATH};
 use crate::metadata::{SortMethod, BookQuery, sort};
 use crate::color::{TEXT_NORMAL, TEXT_INVERTED_HARD};
 use crate::context::Context;
@@ -42,6 +42,27 @@ impl Intermission {
                     Message::Text(kind.text().to_string())
                 }
             },
+            Some(SCREENSAVER_SPECIAL_PATH) => {
+                let dir = PathBuf::from("/mnt/onboard/.kobo/screensaver");
+                let mut files: Vec<_> = std::fs::read_dir(&dir).ok()
+                    .map(|rd| rd.filter_map(|e| e.ok())
+                        .filter(|e| e.file_name()
+                            .to_str()
+                            .map(|name| !name.starts_with('.'))
+                            .unwrap_or(false))
+                        .map(|e| e.path())
+                        .filter(|p| p.extension()
+                            .map(|e| e.eq_ignore_ascii_case("png"))
+                            .unwrap_or(false))
+                        .collect())
+                    .unwrap_or_default();
+                if !files.is_empty() {
+                    let index = (chrono::Local::now().timestamp_subsec_nanos() as usize) % files.len();
+                    Message::Image(files.swap_remove(index))
+                } else {
+                    Message::Text(kind.text().to_string())
+                }
+            },
             _ => Message::Image(path.clone()),
         };
         Intermission {
-- 
2.51.2