input: Move windows between workspaces

src/shell/layout/floating/mod.rs

@@ -54,6 +54,10 @@ impl Layout for FloatingLayout {
         // TODO make sure all windows are still visible on any output or move them
     }
 
+    fn unmap_window(&mut self, space: &mut Space, window: &Window) {
+        space.unmap_window(window)
+    }
+
     fn maximize_request(&mut self, space: &mut Space, window: &Window, output: &Output) {
         let layers = layer_map_for_output(&output);
         let geometry = layers.non_exclusive_zone();

src/shell/layout/mod.rs

@@ -32,7 +32,7 @@ pub trait Layout {
         focus_stack: Box<dyn Iterator<Item = &'a Window> + 'a>,
     ); //working around object safety..
     fn refresh(&mut self, space: &mut Space);
-    //fn unmap_window(&mut self, space: &mut Space, window: &Window);
+    fn unmap_window(&mut self, space: &mut Space, window: &Window);
 
     fn update_orientation<'a>(
         &mut self,

src/shell/layout/tiling/mod.rs

@@ -200,6 +200,12 @@ impl Layout for TilingLayout {
         }
     }
 
+    fn unmap_window(&mut self, space: &mut Space, window: &Window) {
+        self.unmap_window(&window);
+        space.unmap_window(&window);
+        self.refresh(space);
+    }
+
     fn resize_request(
         &mut self,
         _space: &mut Space,

src/shell/mod.rs

@@ -237,6 +237,19 @@ impl Shell {
         };
     }
 
+    pub fn move_current_window(&mut self, seat: &Seat, output: &Output, idx: u8) {
+        let workspace = self.active_space_mut(output);
+        if idx == workspace.idx {
+            return;
+        }
+
+        let maybe_window = workspace.focus_stack(seat).last();
+        if let Some(window) = maybe_window {
+            workspace.unmap_window(&window);
+            self.spaces[idx as usize].map_window(&window, seat);
+        }
+    }
+
     #[cfg(feature = "debug")]
     pub fn mode(&self) -> &Mode {
         &self.mode

src/shell/workspace.rs

@@ -48,7 +48,7 @@ impl<'a> FocusStackMut<'a> {
 type FocusStackData = RefCell<(HashMap<u8, IndexSet<Window>>, IndexSet<Window>)>;
 
 pub struct Workspace {
-    idx: u8,
+    pub(super) idx: u8,
     pub space: Space,
     pub(super) layout: Box<dyn Layout>,
     pub(super) pending_windows: Vec<(Window, Seat)>,
@@ -89,7 +89,7 @@ impl Workspace {
         self.pending_windows.push((window, seat.clone()));
     }
 
-    pub(super) fn map_window<'a>(&mut self, window: &Window, seat: &Seat) {
+    pub(super) fn map_window(&mut self, window: &Window, seat: &Seat) {
         seat.user_data()
             .insert_if_missing(|| FocusStackData::new((HashMap::new(), IndexSet::new())));
         let focus_stack = FocusStackMut(RefMut::map(
@@ -103,6 +103,10 @@ impl Workspace {
             .map_window(&mut self.space, window, seat, focus_stack.iter())
     }
 
+    pub(super) fn unmap_window(&mut self, window: &Window) {
+        self.layout.unmap_window(&mut self.space, window)
+    }
+
     pub fn refresh(&mut self) {
         self.layout.refresh(&mut self.space);
         self.space.refresh();