ecore_evas/wl2 0 fux xdg close cb for window when it's closed remotely

this should fix this:

https://matrix.org/_matrix/media/r0/download/matrix.org/lhFneENlWAjuXDaJfSYuJjjJ

unfortunately this means adding an api and then using it in ecore_evas.

@fix

src/lib/ecore_wl2/Ecore_Wl2.h

@@ -736,6 +736,18 @@ EAPI const char *ecore_wl2_display_name_get(const Ecore_Wl2_Display *display);
  */
 EAPI Ecore_Wl2_Window *ecore_wl2_window_new(Ecore_Wl2_Display *display, Ecore_Wl2_Window *parent, int x, int y, int w, int h);
 
+/**
+ * Set a callback to be caleld just before the window is closed and freed
+ *
+ * @param window The window to listen to for a xdg toplevel close callback
+ * @param cb The callback function to call being passed data and window
+ * @param data The Data pointer to pass as data to the callback
+ *
+ * @ingroup Ecore_Wl2_Window_Group
+ * @since 1.24
+ */
+EAPI void ecore_wl2_window_close_callback_set(Ecore_Wl2_Window *window, void (*cb) (void *data, Ecore_Wl2_Window *win), void *data);
+
 /**
  * Get the wl_surface which belongs to this window
  *

src/lib/ecore_wl2/ecore_wl2_private.h

@@ -191,6 +191,9 @@ struct _Ecore_Wl2_Window
    struct zxdg_toplevel_v6 *zxdg_toplevel;
    struct zxdg_popup_v6 *zxdg_popup;
 
+   void (*cb_close) (void *data, Ecore_Wl2_Window *win);
+   void  *cb_close_data;
+
    Eina_Stringshare *uuid;
 
    void (*xdg_configure_ack)(struct xdg_surface *surface, uint32_t serial);

src/lib/ecore_wl2/ecore_wl2_window.c

@@ -264,7 +264,11 @@ _xdg_toplevel_cb_close(void *data, struct xdg_toplevel *xdg_toplevel EINA_UNUSED
 
    win = data;
    if (!win) return;
-
+   if (win->cb_close)
+     {
+        win->cb_close(win->cb_close_data, win);
+        win->cb_close = NULL;
+     }
    ecore_wl2_window_free(win);
 }
 
@@ -568,6 +572,14 @@ ecore_wl2_window_new(Ecore_Wl2_Display *display, Ecore_Wl2_Window *parent, int x
    return win;
 }
 
+EAPI void
+ecore_wl2_window_close_callback_set(Ecore_Wl2_Window *window, void (*cb) (void *data, Ecore_Wl2_Window *win), void *data)
+{
+   EINA_SAFETY_ON_NULL_RETURN(window);
+   window->cb_close = cb;
+   window->cb_close_data = data;
+}
+
 EAPI struct wl_surface *
 ecore_wl2_window_surface_get(Ecore_Wl2_Window *window)
 {

src/modules/ecore_evas/engines/wayland/ecore_evas_wayland_common.c

@@ -1438,7 +1438,12 @@ _ecore_evas_wl_common_free(Ecore_Evas *ee)
    if (wdata->frame) ecore_wl2_window_frame_callback_del(wdata->frame);
    wdata->frame = NULL;
    ecore_event_handler_del(wdata->sync_handler);
-   if (wdata->win) ecore_wl2_window_free(wdata->win);
+   if (wdata->win)
+     {
+        ecore_wl2_window_close_callback_set(wdata->win, NULL, NULL);
+        ecore_wl2_window_free(wdata->win);
+        wdata->win = NULL;
+     }
    ecore_wl2_display_disconnect(wdata->display);
 
    EINA_LIST_FREE(wdata->devices_list, device)
@@ -2466,6 +2471,17 @@ static Ecore_Evas_Engine_Func _ecore_wl_engine_func =
    NULL, //fn_last_tick_get
 };
 
+static void
+_ecore_evas_wl_common_win_close(void *data, Ecore_Wl2_Window *win EINA_UNUSED)
+{
+   Ecore_Evas *ee = data;
+   Ecore_Evas_Engine_Wl_Data *wdata = ee->engine.data;
+
+   if (ee->func.fn_delete_request) ee->func.fn_delete_request(ee);
+
+   wdata->win = NULL;
+}
+
 Ecore_Evas *
 _ecore_evas_wl_common_new_internal(const char *disp_name, Ecore_Window parent, int x, int y, int w, int h, Eina_Bool frame, const int *opt, const char *engine_name)
 {
@@ -2553,6 +2569,7 @@ _ecore_evas_wl_common_new_internal(const char *disp_name, Ecore_Window parent, i
    wdata->display = ewd;
 
    wdata->win = ecore_wl2_window_new(ewd, p, x, y, w, h);
+   ecore_wl2_window_close_callback_set(wdata->win, _ecore_evas_wl_common_win_close, ee);
    ee->prop.window = (Ecore_Window)wdata->win;
    ee->prop.aux_hint.supported_list = ecore_wl2_window_aux_hints_supported_get(wdata->win);
    ecore_evas_aux_hint_add(ee, "wm.policy.win.msg.use", "1");