Set mapped before firing map/unmap events

This allows whatever the user calls from the signal handlers to react to observe
the new state rather than the old, e.g. that a surface is no longer mapped in
the unmap handler.

types/data_device/wlr_drag.c

@@ -112,8 +112,8 @@ static void drag_icon_set_mapped(struct wlr_drag_icon *icon, bool mapped) {
 		icon->mapped = true;
 		wlr_signal_emit_safe(&icon->events.map, icon);
 	} else if (!mapped && icon->mapped) {
-		wlr_signal_emit_safe(&icon->events.unmap, icon);
 		icon->mapped = false;
+		wlr_signal_emit_safe(&icon->events.unmap, icon);
 	}
 }
 

types/wlr_input_method_v2.c

@@ -143,8 +143,8 @@ static void popup_surface_set_mapped(
 		popup_surface->mapped = true;
 		wlr_signal_emit_safe(&popup_surface->events.map, popup_surface);
 	} else if (!mapped && popup_surface->mapped) {
-		wlr_signal_emit_safe(&popup_surface->events.unmap, popup_surface);
 		popup_surface->mapped = false;
+		wlr_signal_emit_safe(&popup_surface->events.unmap, popup_surface);
 	}
 }
 

types/wlr_layer_shell_v1.c

@@ -262,6 +262,8 @@ static const struct zwlr_layer_surface_v1_interface layer_surface_implementation
 };
 
 static void layer_surface_unmap(struct wlr_layer_surface_v1 *surface) {
+	surface->configured = surface->mapped = false;
+
 	// TODO: probably need to ungrab before this event
 	wlr_signal_emit_safe(&surface->events.unmap, surface);
 
@@ -275,7 +277,6 @@ static void layer_surface_unmap(struct wlr_layer_surface_v1 *surface) {
 		layer_surface_configure_destroy(configure);
 	}
 
-	surface->configured = surface->mapped = false;
 }
 
 static void layer_surface_destroy(struct wlr_layer_surface_v1 *surface) {

types/wlr_subcompositor.c

@@ -229,8 +229,8 @@ static void subsurface_consider_map(struct wlr_subsurface *subsurface,
 	}
 
 	// Now we can map the subsurface
-	wlr_signal_emit_safe(&subsurface->events.map, subsurface);
 	subsurface->mapped = true;
+	wlr_signal_emit_safe(&subsurface->events.map, subsurface);
 
 	// Try mapping all children too
 	struct wlr_subsurface *child;
@@ -249,8 +249,8 @@ static void subsurface_unmap(struct wlr_subsurface *subsurface) {
 		return;
 	}
 
-	wlr_signal_emit_safe(&subsurface->events.unmap, subsurface);
 	subsurface->mapped = false;
+	wlr_signal_emit_safe(&subsurface->events.unmap, subsurface);
 
 	// Unmap all children
 	struct wlr_subsurface *child;

types/xdg_shell/wlr_xdg_surface.c

@@ -29,6 +29,7 @@ static void xdg_surface_configure_destroy(
 
 void unmap_xdg_surface(struct wlr_xdg_surface *surface) {
 	assert(surface->role != WLR_XDG_SURFACE_ROLE_NONE);
+	surface->configured = false;
 
 	struct wlr_xdg_popup *popup, *popup_tmp;
 	wl_list_for_each_safe(popup, popup_tmp, &surface->popups, link) {
@@ -37,6 +38,7 @@ void unmap_xdg_surface(struct wlr_xdg_surface *surface) {
 
 	// TODO: probably need to ungrab before this event
 	if (surface->mapped) {
+		surface->mapped = false;
 		wlr_signal_emit_safe(&surface->events.unmap, NULL);
 	}
 
@@ -56,7 +58,6 @@ void unmap_xdg_surface(struct wlr_xdg_surface *surface) {
 		xdg_surface_configure_destroy(configure);
 	}
 
-	surface->configured = surface->mapped = false;
 	if (surface->configure_idle) {
 		wl_event_source_remove(surface->configure_idle);
 		surface->configure_idle = NULL;

xwayland/xwm.c

@@ -836,8 +836,8 @@ static void xwayland_surface_role_commit(struct wlr_surface *wlr_surface) {
 	}
 
 	if (!surface->mapped && wlr_surface_has_buffer(surface->surface)) {
-		wlr_signal_emit_safe(&surface->events.map, surface);
 		surface->mapped = true;
+		wlr_signal_emit_safe(&surface->events.map, surface);
 		xwm_set_net_client_list(surface->xwm);
 	}
 }
@@ -853,8 +853,8 @@ static void xwayland_surface_role_precommit(struct wlr_surface *wlr_surface,
 	if (state->committed & WLR_SURFACE_STATE_BUFFER && state->buffer == NULL) {
 		// This is a NULL commit
 		if (surface->mapped) {
-			wlr_signal_emit_safe(&surface->events.unmap, surface);
 			surface->mapped = false;
+			wlr_signal_emit_safe(&surface->events.unmap, surface);
 			xwm_set_net_client_list(surface->xwm);
 		}
 	}