can close windows independently

Juliet/julietapp/julietapp_core.c

@@ -38,10 +38,25 @@ internal void ja_frame()
     {
         for (WM_Event *event = events.first, *next = 0; event != 0; event = next)
         {
+            JA_WindowState* ws   = ja_window_state_from_platform_handle(event->window);
             bool32          take = 0;
             if (event->kind == WM_EventKind_WindowClose)
+            {
+                if (ws != 0)
+                {
+                    JA_WindowRequest* request = ja_window_request_from_id(ws->id);
+                    AssertAlways(request != 0);
+                    ja_window_close_request(request);
+
+                    if (ja_state->window_request_count == 0)
                     {
                         ja_state->quit = 1;
+                    }
+                }
+                else
+                {
+                    ja_state->quit = 1;
+                }
                 take = 1;
             }
 
@@ -220,6 +235,23 @@ internal JA_WindowState* ja_window_state_from_id(JA_ID id)
     return ws;
 }
 
+internal JA_WindowState* ja_window_state_from_platform_handle(WM_Window platform_handle)
+{
+    JA_WindowState* ws = &ja_nil_window_state;
+    {
+        for (JA_WindowState* w_candidate = ja_state->first_window_state; w_candidate != &ja_nil_window_state;
+             w_candidate                 = w_candidate->order_next)
+        {
+            if (wm_window_match(w_candidate->plat_handle, platform_handle))
+            {
+                ws = w_candidate;
+                break;
+            }
+        }
+    }
+    return ws;
+}
+
 internal void ja_window_request()
 {
     JA_ID             id     = ja_state->window_request_gen_id++;
@@ -234,12 +266,16 @@ internal void ja_window_request()
     }
     result->id = id;
     DLL_push_back(ja_state->window_request_first, ja_state->window_request_last, result);
+    ja_state->window_request_count += 1;
 }
 
 internal void ja_window_close_request(JA_WindowRequest* request)
 {
     DLL_remove(ja_state->window_request_first, ja_state->window_request_last, request);
     SLL_stack_push(ja_state->free_window_request, request);
+
+    ja_state->window_request_count -= 1;
+    AssertAlways(ja_state->window_request_count >= 0);
 }
 
 internal JA_WindowRequest* ja_window_request_from_id(JA_ID id)
@@ -247,9 +283,12 @@ internal JA_WindowRequest* ja_window_request_from_id(JA_ID id)
     JA_WindowRequest* result = 0;
     for
         EachNode(wr, JA_WindowRequest, ja_state->window_request_first)
+        {
+            if (wr->id == id)
             {
                 result = wr;
                 break;
             }
+        }
     return result;
 }

Juliet/julietapp/julietapp_core.h

@@ -66,6 +66,7 @@ struct JA_State
     JA_WindowRequest* window_request_first;
     JA_WindowRequest* window_request_last;
     JA_WindowRequest* free_window_request;
+    uint64            window_request_count;
 
     // Windows
     JA_WindowState*     free_window_state;
@@ -100,6 +101,7 @@ internal void ja_id_list_push(Arena* arena, JA_IDList* list, JA_ID id);
 // Window Functions
 
 internal JA_WindowState*   ja_window_state_from_id(JA_ID id);
+internal JA_WindowState*   ja_window_state_from_platform_handle(WM_Window platform_handle);
 internal void              ja_window_request();
 internal void              ja_window_close_request(JA_WindowRequest* request);
 internal JA_WindowRequest* ja_window_request_from_id(JA_ID id);