From 66c3bab2fa62eaf81943e3d470b55bf8bd1687c3 Mon Sep 17 00:00:00 2001
From: atagen <boss@atagen.co>
Date: Sat, 5 Jul 2025 15:30:44 +1000
Subject: [PATCH] feat: add activation on fill

---
 README.md         |  4 ++++
 daemon/manager.rs | 14 ++++++++++++++
 lib/main.rs       |  2 ++
 3 files changed, 20 insertions(+)

diff --git a/README.md b/README.md
index a17d68c..c9e404b 100644
--- a/README.md
+++ b/README.md
@@ -113,6 +113,10 @@ prepopulate = 3
 # paradigm, or get your desktop stuck in a weird state.
 strict = true
 
+# activation on fill
+# this will auto-activate an empty + disabled tags if you send a window to it
+activation_on_fill = true
+
  ````
 
 ## ipc
diff --git a/daemon/manager.rs b/daemon/manager.rs
index 108f0ab..6a21416 100644
--- a/daemon/manager.rs
+++ b/daemon/manager.rs
@@ -295,7 +295,14 @@ impl NiriTag {
                 TagCmd::AddTagToWin(t) => {
                     let wid = self.get_focused_window().await?.id;
                     self.change_window_tag(wid, Some(t)).await?;
+                    let entry = self.tags.entry(t).or_default();
+                    if entry.windows.len() == 1 && self.config.activation_on_fill {
+                        entry.enabled = true;
+                        self.fire_event(TagEvent::TagEnabled(t)).await;
+                        &[Tag(t), Window(wid)]
+                    } else {
                         &[Window(wid)]
+                    }
                 }
                 TagCmd::RemoveTagFromWin(_) => {
                     let wid = self.get_focused_window().await?.id;
@@ -311,7 +318,14 @@ impl NiriTag {
                     };
                     self.change_window_tag(wid, Some(new_tag)).await?;
                     tracing::debug!("toggling {} to tag {}", wid, new_tag);
+                    let entry = self.tags.entry(new_tag).or_default();
+                    if new_tag != 0 && entry.windows.len() == 1 && self.config.activation_on_fill {
+                        entry.enabled = true;
+                        self.fire_event(TagEvent::TagEnabled(t)).await;
+                        &[Tag(t), Window(wid)]
+                    } else {
                         &[Window(wid)]
+                    }
                 }
 
                 TagCmd::EnableTag(t) => {
diff --git a/lib/main.rs b/lib/main.rs
index c1bfa66..a705d06 100644
--- a/lib/main.rs
+++ b/lib/main.rs
@@ -48,6 +48,7 @@ impl Default for TagState {
 pub struct Config {
     pub prepopulate: u8,
     pub strict: bool,
+    pub activation_on_fill: bool,
 }
 
 impl Default for Config {
@@ -55,6 +56,7 @@ impl Default for Config {
         Self {
             prepopulate: 3,
             strict: true,
+            activation_on_fill: true,
         }
     }
 }