libweston-desktop/xdg-shell-v6: Ensure first configure is sent

The old code for scheduling configure events on idle looked like:
if (configure_scheduled) {
    if (this_event_is_the_same) {
        remove_timer();
return;
    }
}

If we queued one new event (either changed, or the client had never
received any configure event), followed immediately by one event which
was the same as the first, we would delete the scheduled send of the
first event.

Fix this by treating unconfigured surface as never the same.

Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Daniel Stone <daniels@collabora.com>

libweston-desktop/xdg-shell-v6.c

@@ -303,8 +303,7 @@ static const struct zxdg_positioner_v6_interface weston_desktop_xdg_positioner_i
 };
 
 static void
-weston_desktop_xdg_surface_schedule_configure(struct weston_desktop_xdg_surface *surface,
-					      bool force);
+weston_desktop_xdg_surface_schedule_configure(struct weston_desktop_xdg_surface *surface);
 
 static void
 weston_desktop_xdg_toplevel_ensure_added(struct weston_desktop_xdg_toplevel *toplevel)
@@ -314,7 +313,7 @@ weston_desktop_xdg_toplevel_ensure_added(struct weston_desktop_xdg_toplevel *top
 
 	weston_desktop_api_surface_added(toplevel->base.desktop,
 					 toplevel->base.desktop_surface);
-	weston_desktop_xdg_surface_schedule_configure(&toplevel->base, true);
+	weston_desktop_xdg_surface_schedule_configure(&toplevel->base);
 	toplevel->added = true;
 }
 
@@ -584,7 +583,7 @@ weston_desktop_xdg_toplevel_set_maximized(struct weston_desktop_surface *dsurfac
 	struct weston_desktop_xdg_toplevel *toplevel = user_data;
 
 	toplevel->pending.state.maximized = maximized;
-	weston_desktop_xdg_surface_schedule_configure(&toplevel->base, false);
+	weston_desktop_xdg_surface_schedule_configure(&toplevel->base);
 }
 
 static void
@@ -594,7 +593,7 @@ weston_desktop_xdg_toplevel_set_fullscreen(struct weston_desktop_surface *dsurfa
 	struct weston_desktop_xdg_toplevel *toplevel = user_data;
 
 	toplevel->pending.state.fullscreen = fullscreen;
-	weston_desktop_xdg_surface_schedule_configure(&toplevel->base, false);
+	weston_desktop_xdg_surface_schedule_configure(&toplevel->base);
 }
 
 static void
@@ -604,7 +603,7 @@ weston_desktop_xdg_toplevel_set_resizing(struct weston_desktop_surface *dsurface
 	struct weston_desktop_xdg_toplevel *toplevel = user_data;
 
 	toplevel->pending.state.resizing = resizing;
-	weston_desktop_xdg_surface_schedule_configure(&toplevel->base, false);
+	weston_desktop_xdg_surface_schedule_configure(&toplevel->base);
 }
 
 static void
@@ -614,7 +613,7 @@ weston_desktop_xdg_toplevel_set_activated(struct weston_desktop_surface *dsurfac
 	struct weston_desktop_xdg_toplevel *toplevel = user_data;
 
 	toplevel->pending.state.activated = activated;
-	weston_desktop_xdg_surface_schedule_configure(&toplevel->base, false);
+	weston_desktop_xdg_surface_schedule_configure(&toplevel->base);
 }
 
 static void
@@ -627,7 +626,7 @@ weston_desktop_xdg_toplevel_set_size(struct weston_desktop_surface *dsurface,
 	toplevel->pending.size.width = width;
 	toplevel->pending.size.height = height;
 
-	weston_desktop_xdg_surface_schedule_configure(&toplevel->base, false);
+	weston_desktop_xdg_surface_schedule_configure(&toplevel->base);
 }
 
 static void
@@ -807,7 +806,7 @@ static void
 weston_desktop_xdg_popup_committed(struct weston_desktop_xdg_popup *popup)
 {
 	if (!popup->committed)
-		weston_desktop_xdg_surface_schedule_configure(&popup->base, true);
+		weston_desktop_xdg_surface_schedule_configure(&popup->base);
 	popup->committed = true;
 	weston_desktop_xdg_popup_update_position(popup->base.desktop_surface,
 						 popup);
@@ -904,6 +903,9 @@ weston_desktop_xdg_surface_send_configure(void *user_data)
 static bool
 weston_desktop_xdg_toplevel_state_compare(struct weston_desktop_xdg_toplevel *toplevel)
 {
+	if (!toplevel->base.configured)
+		return false;
+
 	if (toplevel->pending.state.activated != toplevel->current.state.activated)
 		return false;
 	if (toplevel->pending.state.fullscreen != toplevel->current.state.fullscreen)
@@ -925,20 +927,18 @@ weston_desktop_xdg_toplevel_state_compare(struct weston_desktop_xdg_toplevel *to
 }
 
 static void
-weston_desktop_xdg_surface_schedule_configure(struct weston_desktop_xdg_surface *surface,
-					      bool force)
+weston_desktop_xdg_surface_schedule_configure(struct weston_desktop_xdg_surface *surface)
 {
 	struct wl_display *display = weston_desktop_get_display(surface->desktop);
 	struct wl_event_loop *loop = wl_display_get_event_loop(display);
-	bool pending_same = !force;
+	bool pending_same = false;
 
 	switch (surface->role) {
 	case WESTON_DESKTOP_XDG_SURFACE_ROLE_NONE:
 		assert(0 && "not reached");
 		break;
 	case WESTON_DESKTOP_XDG_SURFACE_ROLE_TOPLEVEL:
-		pending_same = pending_same &&
-			weston_desktop_xdg_toplevel_state_compare((struct weston_desktop_xdg_toplevel *) surface);
+		pending_same = weston_desktop_xdg_toplevel_state_compare((struct weston_desktop_xdg_toplevel *) surface);
 		break;
 	case WESTON_DESKTOP_XDG_SURFACE_ROLE_POPUP:
 		break;