From b9778944ba27e1deeec1be2bdc286790e6274470 Mon Sep 17 00:00:00 2001
From: tcmal <me@aria.rip>
Date: Thu, 4 Jul 2024 22:22:46 +0100
Subject: support floating windows

---
 src/clients/client.rs   | 13 +++++++++++++
 src/clients/mod.rs      | 18 ++++++++++++++++++
 src/clients/monitors.rs |  4 ++--
 src/config.rs           |  3 ++-
 src/helpers.rs          |  7 +++++++
 5 files changed, 42 insertions(+), 3 deletions(-)

(limited to 'src')

diff --git a/src/clients/client.rs b/src/clients/client.rs
index 394c319..17cfd4f 100644
--- a/src/clients/client.rs
+++ b/src/clients/client.rs
@@ -12,6 +12,7 @@ use super::hints;
 
 /// Information about a single client / window
 #[derive(Debug)]
+#[allow(clippy::struct_excessive_bools)]
 pub struct Client {
     /// The corresponding X11 window
     window: Window,
@@ -25,6 +26,7 @@ pub struct Client {
 
     urgent: bool,
     never_focus: bool,
+    floating: bool,
 }
 
 impl Client {
@@ -39,6 +41,7 @@ impl Client {
             mapped: false,
             urgent: false,
             never_focus: false,
+            floating: false,
         }
     }
 
@@ -104,6 +107,16 @@ impl Client {
         });
     }
 
+    /// Whether the client is floating - outside of current tiling rules and displaying over any tiled windows
+    pub const fn floating(&self) -> bool {
+        self.floating
+    }
+
+    /// Set the floating status.
+    pub fn set_floating(&mut self, floating: bool) {
+        self.floating = floating;
+    }
+
     /// Ensure this client is currently mapped / visible
     pub fn ensure_mapped(&mut self, conn: &Connection<'_>) {
         if !self.mapped {
diff --git a/src/clients/mod.rs b/src/clients/mod.rs
index fe0a4d3..445c24c 100644
--- a/src/clients/mod.rs
+++ b/src/clients/mod.rs
@@ -322,6 +322,14 @@ impl ClientState {
         );
     }
 
+    /// Toggle whether the client with the given position is floating
+    pub fn toggle_floating(&mut self, conn: &Connection<'_>, (mon, pos): (usize, usize)) {
+        let c = &mut self.mons[mon].clients[pos];
+        c.set_floating(!c.floating());
+
+        self.rearrange_monitor(conn, mon);
+    }
+
     /// Get the amount of monitors this state is currently aware of
     pub fn monitor_count(&self) -> usize {
         self.mons.len()
@@ -371,6 +379,16 @@ impl ClientState {
         self.client(self.focused.0, self.focused.1)
     }
 
+    /// Get the position of the currently focused client, if it exists
+    pub fn focused_pos(&self) -> Option<(usize, usize)> {
+        let (mon, pos) = self.focused;
+        if mon < self.mons.len() && pos < self.mons[mon].clients.len() {
+            Some((mon, pos))
+        } else {
+            None
+        }
+    }
+
     /// Get a mutable reference to the currently focused client, if it exists.
     pub fn focused_mut(&mut self) -> Option<&mut Client> {
         self.client_mut(self.focused.0, self.focused.1)
diff --git a/src/clients/monitors.rs b/src/clients/monitors.rs
index 0a9bcde..6ca6fdf 100644
--- a/src/clients/monitors.rs
+++ b/src/clients/monitors.rs
@@ -15,8 +15,8 @@ pub struct MonitorInfo {
 impl MonitorInfo {
     /// Iterate over all tiled clients, returning a mutable reference to each.
     pub fn clients_tiled_mut(&mut self) -> impl Iterator<Item = &mut Client> {
-        // TODO: tag filtering, floating
-        self.clients.iter_mut()
+        // TODO: tag filtering
+        self.clients.iter_mut().filter(|c| !c.floating())
     }
 }
 
diff --git a/src/config.rs b/src/config.rs
index 0fc7144..aac47ae 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -7,7 +7,7 @@ use xkeysym::Keysym;
 use crate::{
     bind,
     conn_info::Colour,
-    helpers::{focus_next, focus_prev, spawn},
+    helpers::{focus_next, focus_prev, spawn, toggle_floating},
     keys::{Keybind, Keybinds},
 };
 
@@ -32,6 +32,7 @@ pub const KEYBINDS: Keybinds = Keybinds(&[
     bind!(MAIN_MODIFIER , p -> &|_| spawn::<_, &str>(MENU_COMMAND, [])),
     bind!(MAIN_MODIFIER , j -> &focus_next),
     bind!(MAIN_MODIFIER , k -> &focus_prev),
+    bind!(MAIN_MODIFIER.union(ModMask::SHIFT) , space -> &toggle_floating),
     // { MODKEY,                       XK_j,      focusstack,     {.i = +1 } },
     // { MODKEY,                       XK_k,      focusstack,     {.i = -1 } },
     // { MODKEY,                       XK_i,      incnmaster,     {.i = +1 } },
diff --git a/src/helpers.rs b/src/helpers.rs
index 51ebae8..b7488dd 100644
--- a/src/helpers.rs
+++ b/src/helpers.rs
@@ -40,3 +40,10 @@ pub fn focus_next(wm: &mut WM<'_>) {
 pub fn focus_prev(wm: &mut WM<'_>) {
     wm.clients.change_focus(&wm.conn, false);
 }
+
+/// Toggle floating status for the currently focused window
+pub fn toggle_floating(wm: &mut WM<'_>) {
+    if let Some(pos) = wm.clients.focused_pos() {
+        wm.clients.toggle_floating(&wm.conn, pos);
+    }
+}
-- 
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