From 5d2a23a5d618725b75ba77d7185601e5439801c5 Mon Sep 17 00:00:00 2001
From: tcmal <me@aria.rip>
Date: Mon, 15 Jul 2024 15:30:06 +0100
Subject: support fullscreen mode

---
 src/clients/client.rs   | 60 ++++++++++++++++++++++++++++++++++++++++---------
 src/clients/mod.rs      | 23 +++++++++++++++++--
 src/clients/monitors.rs |  2 +-
 3 files changed, 71 insertions(+), 14 deletions(-)

(limited to 'src/clients')

diff --git a/src/clients/client.rs b/src/clients/client.rs
index 6845e4e..84f787a 100644
--- a/src/clients/client.rs
+++ b/src/clients/client.rs
@@ -8,7 +8,7 @@ use xcb::{
 
 use crate::{config::BORDER_WIDTH, conn_info::Connection};
 
-use super::hints;
+use super::{hints, MonitorGeometry};
 
 /// Information about a single client / window
 #[derive(Debug)]
@@ -26,7 +26,20 @@ pub struct Client {
 
     urgent: bool,
     never_focus: bool,
-    floating: bool,
+    layout_mode: LayoutMode,
+}
+
+/// How this window's geometry is determined,
+#[derive(Debug)]
+pub enum LayoutMode {
+    /// By the tiling algorithm
+    Tiled,
+
+    /// By the user
+    Floating,
+
+    /// By the monitor its on
+    Fullscreen,
 }
 
 impl Client {
@@ -41,7 +54,7 @@ impl Client {
             mapped: false,
             urgent: false,
             never_focus: false,
-            floating: false,
+            layout_mode: LayoutMode::Tiled,
         }
     }
 
@@ -107,20 +120,45 @@ 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
+    /// Whether the client is tiled
+    pub const fn tiled(&self) -> bool {
+        matches!(self.layout_mode, LayoutMode::Tiled)
+    }
+
+    /// Set the window as tiled
+    pub fn set_tiled(&mut self) {
+        self.layout_mode = LayoutMode::Tiled;
+    }
+
+    /// Set the window as floating
+    pub fn set_floating(&mut self, conn: &Connection<'_>) {
+        if !matches!(self.layout_mode, LayoutMode::Floating) {
+            conn.send_request(&ConfigureWindow {
+                window: self.window,
+                value_list: &[ConfigWindow::StackMode(StackMode::Above)],
+            });
+        }
+        self.layout_mode = LayoutMode::Floating;
     }
 
-    /// Set the floating status.
-    pub fn set_floating(&mut self, conn: &Connection<'_>, floating: bool) {
-        if floating && floating != self.floating {
+    /// Set the window as fullscreen
+    pub fn set_fullscreen(&mut self, conn: &Connection<'_>, mon_geom: &MonitorGeometry) {
+        if !matches!(self.layout_mode, LayoutMode::Fullscreen) {
             conn.send_request(&ConfigureWindow {
                 window: self.window,
                 value_list: &[ConfigWindow::StackMode(StackMode::Above)],
             });
+
+            self.set_geom(
+                conn,
+                mon_geom.x_org,
+                mon_geom.y_org,
+                mon_geom.width,
+                mon_geom.height,
+                self.border_width,
+            );
         }
-        self.floating = floating;
+        self.layout_mode = LayoutMode::Fullscreen;
     }
 
     /// Ensure this client is currently mapped / visible
@@ -180,7 +218,7 @@ impl Client {
     pub fn update_window_type(&mut self, conn: &Connection<'_>) {
         // TODO: Fullscreen from net_wm_state
         if hints::is_dialog(conn, self.window) {
-            self.set_floating(conn, true);
+            self.set_floating(conn);
         }
     }
 
diff --git a/src/clients/mod.rs b/src/clients/mod.rs
index 8efa5b1..c370e04 100644
--- a/src/clients/mod.rs
+++ b/src/clients/mod.rs
@@ -210,7 +210,9 @@ impl ClientState {
             BORDER_WIDTH,
         );
         c.set_border(conn, conn.colours.border_normal());
-        c.set_floating(conn, floating);
+        if floating {
+            c.set_floating(conn);
+        }
         c.update_window_type(conn);
         c.ensure_mapped(conn);
 
@@ -327,7 +329,24 @@ 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(conn, !c.floating());
+        if c.tiled() {
+            c.set_floating(conn);
+        } else {
+            c.set_tiled();
+        }
+
+        self.rearrange_monitor(conn, mon);
+    }
+
+    /// Toggle whether the client with the given position is fullscreen
+    pub fn toggle_fullscreen(&mut self, conn: &Connection<'_>, (mon, pos): (usize, usize)) {
+        let mon_info = &mut self.mons[mon];
+        let c = &mut mon_info.clients[pos];
+        if c.tiled() {
+            c.set_fullscreen(conn, &mon_info.screen_info);
+        } else {
+            c.set_tiled();
+        }
 
         self.rearrange_monitor(conn, mon);
     }
diff --git a/src/clients/monitors.rs b/src/clients/monitors.rs
index 6ca6fdf..6790632 100644
--- a/src/clients/monitors.rs
+++ b/src/clients/monitors.rs
@@ -16,7 +16,7 @@ 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
-        self.clients.iter_mut().filter(|c| !c.floating())
+        self.clients.iter_mut().filter(|c| c.tiled())
     }
 }
 
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