fix(wallpaper): get current slideshow image from cosmic-bg state

Cargo.lock

@@ -1142,6 +1142,7 @@ dependencies = [
  "async-channel",
  "clap",
  "color-eyre",
+ "cosmic-bg-config",
  "cosmic-comp-config",
  "cosmic-panel-config",
  "cosmic-randr-shell",

app/Cargo.toml

@@ -9,6 +9,7 @@ rust-version = "1.65.0"
 apply = "0.3.0"
 async-channel = "2.1.1"
 color-eyre = "0.6.2"
+cosmic-bg-config = { workspace = true }
 cosmic-randr-shell = { workspace = true }
 cosmic-settings-wallpaper = { path = "../pages/wallpapers" }
 cosmic-settings-page = { path = "../page" }

app/src/pages/desktop/wallpaper/config.rs

@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: GPL-3.0-only
 
 use cosmic::cosmic_config::{self, ConfigGet, ConfigSet};
+use cosmic_bg_config::Source;
 use cosmic_settings_wallpaper as wallpaper;
 use std::collections::VecDeque;
 use std::path::{Path, PathBuf};
@@ -16,6 +17,7 @@ const RECENT_FOLDERS: &str = "recent-folders";
 #[derive(Debug, Default)]
 pub struct Config {
     context: Option<cosmic_config::Config>,
+    state: Option<cosmic_config::Config>,
     pub(super) current_folder: Option<PathBuf>,
     custom_colors: Vec<wallpaper::Color>,
     custom_images: Vec<PathBuf>,
@@ -34,6 +36,15 @@ impl Config {
             }
         };
 
+        let state = match cosmic_config::Config::new_state("com.system76.CosmicBackground", VERSION)
+        {
+            Ok(state) => state,
+            Err(why) => {
+                tracing::warn!(?why, "failed to get state");
+                return Self::default();
+            }
+        };
+
         // Get the active background folder from cosmic-config.
         if let Ok(path) = context.get::<Option<PathBuf>>(CURRENT_FOLDER) {
             // Set current folder if it exists.
@@ -82,6 +93,7 @@ impl Config {
         }
 
         config.context = Some(context);
+        config.state = Some(state);
 
         config
     }
@@ -151,6 +163,24 @@ impl Config {
         Ok(())
     }
 
+    #[must_use]
+    pub fn current_image(&self, output: &str) -> Option<Source> {
+        let mut wallpapers = self
+            .state
+            .as_ref()?
+            .get::<Vec<(String, Source)>>("wallpapers")
+            .ok()?
+            .into_iter();
+
+        let wallpaper = if output == "all" {
+            wallpapers.next()
+        } else {
+            wallpapers.find(|(name, _path)| name == output)
+        };
+
+        wallpaper.map(|(_name, path)| path)
+    }
+
     #[must_use]
     pub fn custom_images(&self) -> &[PathBuf] {
         &self.custom_images

app/src/pages/desktop/wallpaper/mod.rs

@@ -40,6 +40,7 @@ use cosmic::{
     widget::{color_picker::ColorPickerUpdate, ColorPickerModel},
     Element,
 };
+use cosmic_bg_config::Source;
 use cosmic_settings_page::Section;
 use cosmic_settings_page::{self as page, section};
 use cosmic_settings_wallpaper::{self as wallpaper, Entry, ScalingMode};
@@ -321,10 +322,13 @@ impl Page {
 
             Choice::Slideshow => self
                 .config_output()
-                .and_then(|output| {
-                    let path = wallpaper::current_image(output).ok()?;
-                    let id = self.wallpaper_id_from_path(&path)?;
-                    Some(&self.selection.display_images[id])
+                .and_then(|output| match self.config.current_image(output)? {
+                    Source::Path(path) => {
+                        let id = self.wallpaper_id_from_path(&path)?;
+                        Some(&self.selection.display_images[id])
+                    }
+
+                    Source::Color(_color) => None,
                 })
                 .or(self.selection.display_images.values().next()),
 
@@ -770,16 +774,20 @@ impl Page {
                     self.cache_display_image();
                 } else {
                     if let Some(output) = self.config_output() {
-                        if let Ok(path) = wallpaper::current_image(output) {
-                            if let Some(entity) = self.wallpaper_id_from_path(&path) {
-                                if let Some(entry) =
-                                    self.config_wallpaper_entry(output.to_owned(), path)
-                                {
-                                    self.select_wallpaper(&entry, entity, false);
-                                    self.config_apply();
-                                    return Command::none();
+                        match self.config.current_image(output) {
+                            Some(Source::Path(path)) => {
+                                if let Some(entity) = self.wallpaper_id_from_path(&path) {
+                                    if let Some(entry) =
+                                        self.config_wallpaper_entry(output.to_owned(), path)
+                                    {
+                                        self.select_wallpaper(&entry, entity, false);
+                                        self.config_apply();
+                                        return Command::none();
+                                    }
                                 }
                             }
+
+                            _ => (),
                         }
                     }
 

pages/wallpapers/src/lib.rs

@@ -43,10 +43,6 @@ pub const DEFAULT_COLORS: &[Color] = &[
     }),
 ];
 
-pub fn current_image(output: &str) -> Result<PathBuf, cosmic_config::Error> {
-    cosmic_bg_config::context()?.current_image(output)
-}
-
 pub async fn config() -> (Config, HashMap<String, (String, (u32, u32))>) {
     let mut displays = HashMap::new();