From 07fb9aec6db0fde0df648518563db6557f4b122c Mon Sep 17 00:00:00 2001
From: Karl Skewes <hello@karlskewes.com>
Date: Sat, 14 Mar 2026 16:50:23 +1000
Subject: [PATCH 1/2] feat: new Window Rule Workspace Assignment Config

Workspace Assignments are a new feature enabling applications to be
consistently launched automatically onto a specific workspace ID.

This commit includes the config structs and getter functions for storing
assignments, e.g:
`com.system76.CosmicSettings.WindowRules/v1/workspace_assignment_custom`

Default (CosmicDE defined) assignments are not currently supported but
code and filenames have been chosen to avoid a conflict with the
standard naming.
---
 config/src/window_rules/mod.rs | 43 ++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/config/src/window_rules/mod.rs b/config/src/window_rules/mod.rs
index 496e09e4..a1e76299 100644
--- a/config/src/window_rules/mod.rs
+++ b/config/src/window_rules/mod.rs
@@ -35,12 +35,21 @@ pub struct PreciseApplicationException {
     pub enabled: bool,
 }
 
+#[derive(Clone, Debug, Deserialize, Serialize, PartialEq)]
+pub struct WorkspaceAssignment {
+    pub appid: String,
+    pub title: String,
+    pub enabled: bool,
+    pub workspace_id: String,
+}
+
 // cosmic-config configuration state for `com.system76.CosmicSettings.WindowRules`
 #[derive(Clone, Debug, Default, PartialEq, CosmicConfigEntry)]
 #[version = 1]
 pub struct Config {
     pub tiling_exception_defaults: Vec<DefaultApplicationException>,
     pub tiling_exception_custom: Vec<PreciseApplicationException>,
+    pub workspace_assignment: Vec<WorkspaceAssignment>,
 }
 
 impl Config {
@@ -117,3 +126,37 @@ pub fn tiling_exceptions(context: &cosmic_config::Config) -> Vec<ApplicationExce
         })
         .collect()
 }
+
+/// Get the current workspace assignment configuration
+pub fn workspace_assignments(context: &cosmic_config::Config) -> Vec<WorkspaceAssignment> {
+    // Load custom assignments defined by the user.
+    let custom = context
+        .get::<Vec<WorkspaceAssignment>>("workspace_assignment_custom")
+        .unwrap_or_else(|why| {
+            if why.is_err()
+                && let cosmic_config::Error::GetKey(_, err) = &why
+                && err.kind() != std::io::ErrorKind::NotFound
+            {
+                tracing::error!("workspace assignment custom config error: {why}");
+                return Vec::new();
+            }
+            tracing::debug!("workspace assignment custom config not present: {why}");
+            Vec::new()
+        });
+
+    custom
+        .iter()
+        .filter_map(|assignment| {
+            if assignment.enabled {
+                Some(WorkspaceAssignment {
+                    appid: assignment.appid.clone(),
+                    title: assignment.title.clone(),
+                    enabled: true, // Currently unused.
+                    workspace_id: assignment.workspace_id.clone(),
+                })
+            } else {
+                None
+            }
+        })
+        .collect()
+}

From 875511967217707ded550794621edd688b388a4a Mon Sep 17 00:00:00 2001
From: Karl Skewes <hello@karlskewes.com>
Date: Fri, 26 Jun 2026 12:03:46 +1000
Subject: [PATCH 2/2] refactor: match Workspaces by name instead of id

---
 config/src/window_rules/mod.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/config/src/window_rules/mod.rs b/config/src/window_rules/mod.rs
index a1e76299..5074b22a 100644
--- a/config/src/window_rules/mod.rs
+++ b/config/src/window_rules/mod.rs
@@ -40,7 +40,7 @@ pub struct WorkspaceAssignment {
     pub appid: String,
     pub title: String,
     pub enabled: bool,
-    pub workspace_id: String,
+    pub workspace_name: String,
 }
 
 // cosmic-config configuration state for `com.system76.CosmicSettings.WindowRules`
@@ -152,7 +152,7 @@ pub fn workspace_assignments(context: &cosmic_config::Config) -> Vec<WorkspaceAs
                     appid: assignment.appid.clone(),
                     title: assignment.title.clone(),
                     enabled: true, // Currently unused.
-                    workspace_id: assignment.workspace_id.clone(),
+                    workspace_name: assignment.workspace_name.clone(),
                 })
             } else {
                 None