Add Mod+F to maximize

README.md

@@ -66,6 +66,7 @@ The general system is: if a hotkey switches somewhere, then adding <kbd>Ctrl</kb
 | <kbd>Mod</kbd><kbd>,</kbd> | Consume the window to the right into the focused column |
 | <kbd>Mod</kbd><kbd>.</kbd> | Expel the focused window into its own column |
 | <kbd>Mod</kbd><kbd>R</kbd> | Toggle between preset window widths |
+| <kbd>Mod</kbd><kbd>F</kbd> | Maximize window |
 | <kbd>Mod</kbd><kbd>Shift</kbd><kbd>E</kbd> | Exit niri |
 
 [PaperWM]: https://github.com/paperwm/PaperWM

src/input.rs

@@ -33,6 +33,7 @@ enum Action {
     MoveToWorkspaceDown,
     MoveToWorkspaceUp,
     ToggleWidth,
+    ToggleFullWidth,
 }
 
 pub enum CompositorMod {
@@ -74,7 +75,7 @@ fn action(comp_mod: CompositorMod, keysym: KeysymHandle, mods: ModifiersState) -
         KEY_E => Action::Quit,
         KEY_t => Action::SpawnTerminal,
         KEY_q => Action::CloseWindow,
-        KEY_f => Action::ToggleFullscreen,
+        KEY_F => Action::ToggleFullscreen,
         KEY_h | KEY_Left if mods.ctrl => Action::MoveLeft,
         KEY_l | KEY_Right if mods.ctrl => Action::MoveRight,
         KEY_j | KEY_Down if mods.ctrl => Action::MoveDown,
@@ -90,6 +91,7 @@ fn action(comp_mod: CompositorMod, keysym: KeysymHandle, mods: ModifiersState) -
         KEY_comma => Action::ConsumeIntoColumn,
         KEY_period => Action::ExpelFromColumn,
         KEY_r => Action::ToggleWidth,
+        KEY_f => Action::ToggleFullWidth,
         _ => Action::None,
     }
 }
@@ -230,6 +232,9 @@ impl Niri {
                         Action::ToggleWidth => {
                             self.monitor_set.toggle_width();
                         }
+                        Action::ToggleFullWidth => {
+                            self.monitor_set.toggle_full_width();
+                        }
                     }
                 }
             }

src/layout.rs

@@ -759,6 +759,13 @@ impl<W: LayoutElement> MonitorSet<W> {
         };
         monitor.toggle_width();
     }
+
+    pub fn toggle_full_width(&mut self) {
+        let Some(monitor) = self.active_monitor() else {
+            return;
+        };
+        monitor.toggle_full_width();
+    }
 }
 
 impl MonitorSet<Window> {
@@ -976,6 +983,10 @@ impl<W: LayoutElement> Monitor<W> {
     fn toggle_width(&mut self) {
         self.active_workspace().toggle_width();
     }
+
+    fn toggle_full_width(&mut self) {
+        self.active_workspace().toggle_full_width();
+    }
 }
 
 impl Monitor<Window> {
@@ -1392,6 +1403,14 @@ impl<W: LayoutElement> Workspace<W> {
 
         self.columns[self.active_column_idx].toggle_width(self.view_size);
     }
+
+    fn toggle_full_width(&mut self) {
+        if self.columns.is_empty() {
+            return;
+        }
+
+        self.columns[self.active_column_idx].toggle_full_width(self.view_size);
+    }
 }
 
 impl Workspace<Window> {
@@ -1555,6 +1574,17 @@ impl<W: LayoutElement> Column<W> {
         let width = ColumnWidth::PresetProportion(idx);
         self.set_width(view_size, width);
     }
+
+    fn toggle_full_width(&mut self, view_size: Size<i32, Logical>) {
+        let width = match self.width {
+            ColumnWidth::Proportion(1.) => {
+                // FIXME: would be good to restore to previous width here.
+                ColumnWidth::default()
+            }
+            _ => ColumnWidth::Proportion(1.),
+        };
+        self.set_width(view_size, width);
+    }
 }
 
 pub fn output_size(output: &Output) -> Size<i32, Logical> {