making win+space work when no tasks are running

1 files changed, 52 insertions, 45 deletions

diff --git a/src/kernel/window.c b/src/kernel/window.c
index c251077..74273fb 100644
--- a/src/kernel/window.c
+++ b/src/kernel/window.c
@@ -289,63 +289,70 @@ void on_action(struct window_action packet) {
   if (packet.action_type == NOT_READY)
     return;
 
-  if (top_window) {
-    if (packet.action_type == KEY_DOWN)
-      for (uint8_t i = 0; i < N_WM_ACTIONS; ++i)
-        if (fuzzy_key_match(keybinds[i], packet.as_key)) {
-          switch_to_kernel_cr3();
-          struct window *old_top, *old_bottom;
-          switch (i) {
-          case WM_SHUFFLE_UP:
-            if (!top_window->below)
-              break;
-            old_top = top_window;
-            old_bottom = bottom_window;
-            top_window = old_top->below;
-            top_window->above = 0;
-            old_top->below = 0;
-            old_top->above = old_bottom;
-            old_bottom->below = old_top;
-            bottom_window = old_top;
-            paint_and_above(bottom_window->above);
+  if (packet.action_type == KEY_DOWN)
+    for (uint8_t i = 0; i < N_WM_ACTIONS; ++i)
+      if (fuzzy_key_match(keybinds[i], packet.as_key)) {
+        switch_to_kernel_cr3();
+        struct window *old_top, *old_bottom;
+        switch (i) {
+        case WM_SHUFFLE_UP:
+          if (!top_window || !top_window->below)
             break;
-          case WM_SHUFFLE_DOWN:
-            if (!top_window->below)
-              break;
-            old_top = top_window;
-            old_bottom = bottom_window;
-            bottom_window = old_bottom->above;
-            bottom_window->below = 0;
-            old_bottom->above = 0;
-            old_bottom->below = old_top;
-            old_top->above = old_bottom;
-            top_window = old_bottom;
-            paint_and_above(top_window);
+          old_top = top_window;
+          old_bottom = bottom_window;
+          top_window = old_top->below;
+          top_window->above = 0;
+          old_top->below = 0;
+          old_top->above = old_bottom;
+          old_bottom->below = old_top;
+          bottom_window = old_top;
+          paint_and_above(bottom_window->above);
+          break;
+        case WM_SHUFFLE_DOWN:
+          if (!top_window || !top_window->below)
             break;
-          case WM_MOVE_LEFT:
+          old_top = top_window;
+          old_bottom = bottom_window;
+          bottom_window = old_bottom->above;
+          bottom_window->below = 0;
+          old_bottom->above = 0;
+          old_bottom->below = old_top;
+          old_top->above = old_bottom;
+          top_window = old_bottom;
+          paint_and_above(top_window);
+          break;
+        case WM_MOVE_LEFT:
+          if (top_window) {
             --top_window->xpos;
             paint_all();
-            break;
-          case WM_MOVE_RIGHT:
+          }
+          break;
+        case WM_MOVE_RIGHT:
+          if (top_window) {
             ++top_window->xpos;
             paint_all();
-            break;
-          case WM_MOVE_UP:
+          }
+          break;
+        case WM_MOVE_UP:
+          if (top_window) {
             --top_window->ypos;
             paint_all();
-            break;
-          case WM_MOVE_DOWN:
+          }
+          break;
+        case WM_MOVE_DOWN:
+          if (top_window) {
             ++top_window->ypos;
             paint_all();
-            break;
-          case WM_RUN_COMMAND:
-            if (!try_elf_run(drives, run_command, run_command_pass, 0))
-              PANIC("Couldn't run program listed in " RUN_COMMAND_FILE ".");
           }
-          switch_to_task_cr3();
-          return;
+          break;
+        case WM_RUN_COMMAND:
+          if (!try_elf_run(drives, run_command, run_command_pass, 0))
+            PANIC("Couldn't run program listed in " RUN_COMMAND_FILE ".");
         }
+        switch_to_task_cr3();
+        return;
+      }
 
+  if (top_window)
     send_action(top_window, packet);
-  }
 }
\ No newline at end of file