fix(wm): normalize max hwnd before minimizing

This commit ensures that if a window maximized using the 'komorebic
toggle-maximize' is minimized using the UI, on the receipt of the
Minimize WindowManagerEvent, the window will be normalized with
SW_NORMAL before being removed from the window manager state.

This ensures that if the window is later managed again, the user will be
able to toggle-maximize normally again as expected.

komorebi/src/window.rs

@@ -175,6 +175,18 @@ impl Window {
         WindowsApi::maximize_window(self.hwnd());
     }
 
+    pub fn unmaximize(self) {
+        let mut programmatically_hidden_hwnds = HIDDEN_HWNDS.lock();
+        if let Some(idx) = programmatically_hidden_hwnds
+            .iter()
+            .position(|&hwnd| hwnd == self.hwnd)
+        {
+            programmatically_hidden_hwnds.remove(idx);
+        }
+
+        WindowsApi::unmaximize_window(self.hwnd());
+    }
+
     pub fn raise(self) -> Result<()> {
         // Attach komorebi thread to Window thread
         let (_, window_thread_id) = WindowsApi::window_thread_process_id(self.hwnd());

komorebi/src/windows_api.rs

@@ -76,6 +76,7 @@ use windows::Win32::UI::WindowsAndMessaging::SPI_SETACTIVEWINDOWTRACKING;
 use windows::Win32::UI::WindowsAndMessaging::SW_HIDE;
 use windows::Win32::UI::WindowsAndMessaging::SW_MAXIMIZE;
 use windows::Win32::UI::WindowsAndMessaging::SW_MINIMIZE;
+use windows::Win32::UI::WindowsAndMessaging::SW_NORMAL;
 use windows::Win32::UI::WindowsAndMessaging::SW_RESTORE;
 use windows::Win32::UI::WindowsAndMessaging::SYSTEM_PARAMETERS_INFO_ACTION;
 use windows::Win32::UI::WindowsAndMessaging::SYSTEM_PARAMETERS_INFO_UPDATE_FLAGS;
@@ -294,6 +295,10 @@ impl WindowsApi {
         Self::show_window(hwnd, SW_RESTORE);
     }
 
+    pub fn unmaximize_window(hwnd: HWND) {
+        Self::show_window(hwnd, SW_NORMAL);
+    }
+
     pub fn maximize_window(hwnd: HWND) {
         Self::show_window(hwnd, SW_MAXIMIZE);
     }

komorebi/src/workspace.rs

@@ -466,6 +466,7 @@ impl Workspace {
 
         if let Some(window) = self.maximized_window() {
             if window.hwnd == hwnd {
+                window.unmaximize();
                 self.set_maximized_window(None);
                 self.set_maximized_window_restore_idx(None);
                 return Ok(());