ecore_wl2: Add API ecore_wl2_window_commit()

Abstract wl_surface commits in ecore_wl2_window.

src/lib/ecore_wl2/Ecore_Wl2.h

@@ -1873,6 +1873,24 @@ EAPI void ecore_wl2_offer_finish(Ecore_Wl2_Offer *offer);
  */
 EAPI void ecore_wl2_session_recovery_disable(void);
 
+/**
+ * Commit the surface of a wayland window.
+ *
+ * If flush is set this generates a wl_surface_commit(), otherwise it is
+ * expected that some other call in the very near future (such as
+ * eglSwapBuffers) will cause an implicit flush.
+ *
+ * A surface that has been commit will be in the "pending" state until
+ * the compositor tells us it's time to draw again via a frame callback.
+ *
+ * @surface surface to commit
+ * @flush EINA_TRUE if we need to flush immediately.
+ *
+ * @since 1.20
+ */
+EAPI void ecore_wl2_window_commit(Ecore_Wl2_Window *window, Eina_Bool flush);
+
+/**
 # endif
 
 # undef EAPI

src/lib/ecore_wl2/ecore_wl2_private.h

@@ -155,6 +155,7 @@ struct _Ecore_Wl2_Window
    const char *role;
 
    struct wl_surface *surface;
+   struct wl_callback *callback;
    struct www_surface *www_surface;
    struct zxdg_surface_v6 *zxdg_surface;
    struct zxdg_toplevel_v6 *zxdg_toplevel;
@@ -199,6 +200,8 @@ struct _Ecore_Wl2_Window
    Eina_Bool focus_skip : 1;
    Eina_Bool floating : 1;
 
+   Eina_Bool commit_pending : 1;
+
    struct
      {
         Eina_Bool configure : 1;

src/lib/ecore_wl2/ecore_wl2_window.c

@@ -535,6 +535,7 @@ ecore_wl2_window_hide(Ecore_Wl2_Window *window)
      {
         wl_surface_attach(window->surface, NULL, 0, 0);
         wl_surface_commit(window->surface);
+        window->commit_pending = EINA_FALSE;
      }
 
    window->configure_serial = 0;
@@ -1342,3 +1343,17 @@ ecore_wl2_window_aspect_set(Ecore_Wl2_Window *window, int w, int h, unsigned int
    if (window->display->wl.efl_hints && window->zxdg_toplevel)
      efl_hints_set_aspect(window->display->wl.efl_hints, window->zxdg_toplevel, w, h, aspect);
 }
+
+EAPI void ecore_wl2_window_commit(Ecore_Wl2_Window *window, Eina_Bool flush)
+{
+   EINA_SAFETY_ON_NULL_RETURN(window);
+   EINA_SAFETY_ON_NULL_RETURN(window->surface);
+
+   if (window->commit_pending) ERR("Commit before previous commit processed");
+
+   window->commit_pending = EINA_TRUE;
+   window->callback = wl_surface_frame(window->surface);
+   wl_callback_add_listener(window->callback, &_frame_listener, window);
+
+   if (flush) wl_surface_commit(window->surface);
+}