feat(wm): add per-monitor work area offsets

This commit introduces per-monitor work area offsets which will always
take precedence over global work area offsets.

komorebi/src/monitor.rs

@@ -26,6 +26,8 @@ pub struct Monitor {
     size: Rect,
     #[getset(get = "pub", set = "pub")]
     work_area_size: Rect,
+    #[getset(get_copy = "pub", set = "pub")]
+    work_area_offset: Option<Rect>,
     workspaces: Ring<Workspace>,
     #[serde(skip_serializing)]
     #[getset(get_mut = "pub")]
@@ -43,6 +45,7 @@ pub fn new(id: isize, size: Rect, work_area_size: Rect, name: String) -> Monitor
         name,
         size,
         work_area_size,
+        work_area_offset: None,
         workspaces,
         workspace_names: HashMap::default(),
     }
@@ -179,6 +182,11 @@ impl Monitor {
         invisible_borders: &Rect,
     ) -> Result<()> {
         let work_area = *self.work_area_size();
+        let offset = if self.work_area_offset().is_some() {
+            self.work_area_offset()
+        } else {
+            offset
+        };
 
         self.focused_workspace_mut()
             .ok_or_else(|| anyhow!("there is no workspace"))?

komorebi/src/process_command.rs

@@ -709,6 +709,12 @@ impl WindowManager {
                 self.work_area_offset = Option::from(rect);
                 self.retile_all(false)?;
             }
+            SocketMessage::MonitorWorkAreaOffset(monitor_idx, rect) => {
+                if let Some(monitor) = self.monitors_mut().get_mut(monitor_idx) {
+                    monitor.set_work_area_offset(Option::from(rect));
+                    self.retile_all(false)?;
+                }
+            }
             SocketMessage::QuickSave => {
                 let workspace = self.focused_workspace()?;
                 let resize = workspace.resize_dimensions();

komorebi/src/process_event.rs

@@ -109,6 +109,12 @@ impl WindowManager {
 
         for (i, monitor) in self.monitors_mut().iter_mut().enumerate() {
             let work_area = *monitor.work_area_size();
+            let offset = if monitor.work_area_offset().is_some() {
+                monitor.work_area_offset()
+            } else {
+                offset
+            };
+
             for (j, workspace) in monitor.workspaces_mut().iter_mut().enumerate() {
                 let reaped_orphans = workspace.reap_orphans()?;
                 if reaped_orphans.0 > 0 || reaped_orphans.1 > 0 {

komorebi/src/window_manager.rs

@@ -599,6 +599,12 @@ impl WindowManager {
 
         for monitor in self.monitors_mut() {
             let work_area = *monitor.work_area_size();
+            let offset = if monitor.work_area_offset().is_some() {
+                monitor.work_area_offset()
+            } else {
+                offset
+            };
+
             let workspace = monitor
                 .focused_workspace_mut()
                 .ok_or_else(|| anyhow!("there is no workspace"))?;
@@ -1650,6 +1656,11 @@ impl WindowManager {
 
         let work_area = *monitor.work_area_size();
         let focused_workspace_idx = monitor.focused_workspace_idx();
+        let offset = if monitor.work_area_offset().is_some() {
+            monitor.work_area_offset()
+        } else {
+            offset
+        };
 
         let workspace = monitor
             .workspaces_mut()
@@ -1691,6 +1702,11 @@ impl WindowManager {
 
         let work_area = *monitor.work_area_size();
         let focused_workspace_idx = monitor.focused_workspace_idx();
+        let offset = if monitor.work_area_offset().is_some() {
+            monitor.work_area_offset()
+        } else {
+            offset
+        };
 
         let workspace = monitor
             .workspaces_mut()
@@ -1732,6 +1748,11 @@ impl WindowManager {
 
         let work_area = *monitor.work_area_size();
         let focused_workspace_idx = monitor.focused_workspace_idx();
+        let offset = if monitor.work_area_offset().is_some() {
+            monitor.work_area_offset()
+        } else {
+            offset
+        };
 
         let workspace = monitor
             .workspaces_mut()
@@ -1770,6 +1791,11 @@ impl WindowManager {
 
         let work_area = *monitor.work_area_size();
         let focused_workspace_idx = monitor.focused_workspace_idx();
+        let offset = if monitor.work_area_offset().is_some() {
+            monitor.work_area_offset()
+        } else {
+            offset
+        };
 
         let workspace = monitor
             .workspaces_mut()
@@ -1807,6 +1833,11 @@ impl WindowManager {
 
         let work_area = *monitor.work_area_size();
         let focused_workspace_idx = monitor.focused_workspace_idx();
+        let offset = if monitor.work_area_offset().is_some() {
+            monitor.work_area_offset()
+        } else {
+            offset
+        };
 
         let workspace = monitor
             .workspaces_mut()