Turn swaybg into a shell surface

3 files changed, 40 insertions, 15 deletions

diff --git a/sway/config.c b/sway/config.c
index 766d2b23..9c957e2d 100644
--- a/sway/config.c
+++ b/sway/config.c
@@ -904,7 +904,6 @@ void apply_output_config(struct output_config *oc, swayc_t *output) {
         }
 
         if (oc && oc->background) {
-
                 if (output->bg_pid != 0) {
                         terminate_swaybg(output->bg_pid);
                 }
diff --git a/sway/extensions.c b/sway/extensions.c
index ab425fa7..1fe15ac5 100644
--- a/sway/extensions.c
+++ b/sway/extensions.c
@@ -73,6 +73,7 @@ static void set_background(struct wl_client *client, struct wl_resource *resourc
         }
         sway_log(L_DEBUG, "Setting surface %p as background for output %d", surface, (int)output);
         struct background_config *config = malloc(sizeof(struct background_config));
+        config->client = client;
         config->output = output;
         config->surface = wlc_resource_from_wl_surface_resource(surface);
         config->wl_surface_res = surface;
diff --git a/sway/handlers.c b/sway/handlers.c
index 1b96be0a..72cb8057 100644
--- a/sway/handlers.c
+++ b/sway/handlers.c
@@ -44,6 +44,17 @@ static struct panel_config *if_panel_find_config(struct wl_client *client) {
         return NULL;
 }
 
+static struct background_config *if_background_find_config(struct wl_client *client) {
+        int i;
+        for (i = 0; i < desktop_shell.backgrounds->length; i++) {
+                struct background_config *config = desktop_shell.backgrounds->items[i];
+                if (config->client == client) {
+                        return config;
+                }
+        }
+        return NULL;
+}
+
 static struct wlc_geometry compute_panel_geometry(struct panel_config *config) {
         const struct wlc_size resolution = *wlc_output_get_resolution(config->output);
         const struct wlc_geometry *old = wlc_view_get_geometry(config->handle);
@@ -93,6 +104,21 @@ static void update_panel_geometries(wlc_handle output) {
         }
 }
 
+static void update_background_geometry(struct background_config *config) {
+        struct wlc_geometry geometry = { 0 };
+        geometry.size = *wlc_output_get_resolution(config->output);
+        wlc_view_set_geometry(config->handle, 0, &geometry);
+}
+
+static void update_background_geometries(wlc_handle output) {
+        for (int i = 0; i < desktop_shell.backgrounds->length; i++) {
+                struct background_config *config = desktop_shell.backgrounds->items[i];
+                if (config->output == output) {
+                        update_background_geometry(config);
+                }
+        }
+}
+
 /* Handles */
 
 static bool handle_input_created(struct libinput_device *device) {
@@ -168,19 +194,6 @@ static void handle_output_destroyed(wlc_handle output) {
         }
 }
 
-static void handle_output_pre_render(wlc_handle output) {
-        struct wlc_size resolution = *wlc_output_get_resolution(output);
-
-        int i;
-        for (i = 0; i < desktop_shell.backgrounds->length; ++i) {
-                struct background_config *config = desktop_shell.backgrounds->items[i];
-                if (config->output == output) {
-                        wlc_surface_render(config->surface, &(struct wlc_geometry){ wlc_origin_zero, resolution });
-                        break;
-                }
-        }
-}
-
 static void handle_output_post_render(wlc_handle output) {
         ipc_get_pixels(output);
         arrange_windows(swayc_by_handle(output), -1, -1);
@@ -201,6 +214,7 @@ static void handle_output_resolution_change(wlc_handle output, const struct wlc_
         c->height = to->h;
 
         update_panel_geometries(output);
+        update_background_geometries(output);
 
         arrange_windows(&root_container, -1, -1);
 }
@@ -247,6 +261,7 @@ static bool handle_view_created(wlc_handle handle) {
         struct wl_client *client = wlc_view_get_wl_client(handle);
         pid_t pid;
         struct panel_config *panel_config = NULL;
+        struct background_config *background_config = NULL;
 
         panel_config = if_panel_find_config(client);
         if (panel_config) {
@@ -254,6 +269,17 @@ static bool handle_view_created(wlc_handle handle) {
                 update_panel_geometry(panel_config);
                 wlc_view_set_mask(handle, VISIBLE);
                 wlc_view_set_output(handle, panel_config->output);
+                wlc_view_bring_to_front(handle);
+                return true;
+        }
+
+        background_config = if_background_find_config(client);
+        if (background_config) {
+                background_config->handle = handle;
+                update_background_geometry(background_config);
+                wlc_view_set_mask(handle, VISIBLE);
+                wlc_view_set_output(handle, background_config->output);
+                wlc_view_send_to_back(handle);
                 return true;
         }
 
@@ -883,7 +909,6 @@ void register_wlc_handlers() {
         wlc_set_output_destroyed_cb(handle_output_destroyed);
         wlc_set_output_resolution_cb(handle_output_resolution_change);
         wlc_set_output_focus_cb(handle_output_focused);
-        wlc_set_output_render_pre_cb(handle_output_pre_render);
         wlc_set_output_render_post_cb(handle_output_post_render);
         wlc_set_view_created_cb(handle_view_created);
         wlc_set_view_destroyed_cb(handle_view_destroyed);