Merge pull request #860 from Shamar/xcb-client-message

demo/xcb_cairo/nuklear_xcb.h: do not discard xcb_client_message_event_t

Author: riri

demo/xcb_cairo/nuklear_xcb.h

@@ -44,7 +44,8 @@ struct nk_cairo_context;
 enum nk_xcb_event_type {
     NK_XCB_EVENT_PAINT      = 0x02,
     NK_XCB_EVENT_RESIZED    = 0x04,
-    NK_XCB_EVENT_STOP       = 0x08
+    NK_XCB_EVENT_STOP       = 0x08,
+    NK_XCB_CLIENT_MESSAGE   = 0x10
 };
 
 /* Xcb part: work on windows */
@@ -155,6 +156,7 @@ struct nk_xcb_context {
     int events;
     xcb_intern_atom_reply_t* del_atom;
     int width, height;
+    xcb_client_message_event_t last_client_message;
 };
 
 NK_API struct nk_xcb_context *nk_xcb_init(const char *title, int pos_x, int pos_y, int width, int height)
@@ -241,6 +243,7 @@ NK_API int nk_xcb_handle_event(struct nk_xcb_context *xcb_ctx, struct nk_context
     int events = 0;
     xcb_generic_event_t *event;
     static int insert_toggle = 0;
+    static const xcb_client_message_event_t EMPTY_CLIENT_MESSAGE;
 
 #ifdef NK_XCB_MIN_FRAME_TIME
     struct timespec tp;
@@ -251,6 +254,7 @@ NK_API int nk_xcb_handle_event(struct nk_xcb_context *xcb_ctx, struct nk_context
 
     event = xcb_wait_for_event(xcb_ctx->conn);
 
+    xcb_ctx->last_client_message = EMPTY_CLIENT_MESSAGE;
     nk_input_begin(nk_ctx);
     do {
         switch (XCB_EVENT_RESPONSE_TYPE(event)) {
@@ -424,6 +428,11 @@ NK_API int nk_xcb_handle_event(struct nk_xcb_context *xcb_ctx, struct nk_context
                 {
                     events = NK_XCB_EVENT_STOP;
                 }
+                else
+                {
+                    xcb_ctx->last_client_message = *cm;
+                    events = NK_XCB_CLIENT_MESSAGE;
+                }
             }
             break;
         default: