4 files changed, 25 insertions, 15 deletions

diff --git a/sway/commands/swaybg_command.c b/sway/commands/swaybg_command.c
index 36f7fdcd..b184b193 100644
--- a/sway/commands/swaybg_command.c
+++ b/sway/commands/swaybg_command.c
@@ -9,12 +9,17 @@ struct cmd_results *cmd_swaybg_command(int argc, char **argv) {
                 return error;
         }
 
-        if (config->swaybg_command) {
-                free(config->swaybg_command);
+        free(config->swaybg_command);
+        config->swaybg_command = NULL;
+
+        char *new_command = join_args(argv, argc);
+        if (strcmp(new_command, "-") != 0) {
+                config->swaybg_command = new_command;
+                wlr_log(WLR_DEBUG, "Using custom swaybg command: %s",
+                                config->swaybg_command);
+        } else {
+                free(new_command);
         }
-        config->swaybg_command = join_args(argv, argc);
-        wlr_log(WLR_DEBUG, "Using custom swaybg command: %s",
-                        config->swaybg_command);
 
         return cmd_results_new(CMD_SUCCESS, NULL, NULL);
 }
diff --git a/sway/config.c b/sway/config.c
index 8f8ed438..7f29347a 100644
--- a/sway/config.c
+++ b/sway/config.c
@@ -136,6 +136,7 @@ void free_config(struct sway_config *config) {
         free(config->floating_scroll_left_cmd);
         free(config->floating_scroll_right_cmd);
         free(config->font);
+        free(config->swaybg_command);
         free((char *)config->current_config_path);
         free((char *)config->current_config);
         free(config);
@@ -240,6 +241,8 @@ static void config_defaults(struct sway_config *config) {
 
         if (!(config->active_bar_modifiers = create_list())) goto cleanup;
 
+        if (!(config->swaybg_command = strdup("swaybg"))) goto cleanup;
+
         if (!(config->config_chain = create_list())) goto cleanup;
         config->current_config_path = NULL;
         config->current_config = NULL;
diff --git a/sway/config/output.c b/sway/config/output.c
index 6f337b66..2b041353 100644
--- a/sway/config/output.c
+++ b/sway/config/output.c
@@ -229,17 +229,16 @@ void apply_output_config(struct output_config *oc, struct sway_output *output) {
                 }
         }
 
-        if (oc && oc->background) {
-                if (output->bg_pid != 0) {
-                        terminate_swaybg(output->bg_pid);
-                }
-
+        if (output->bg_pid != 0) {
+                terminate_swaybg(output->bg_pid);
+        }
+        if (oc && oc->background && config->swaybg_command) {
                 wlr_log(WLR_DEBUG, "Setting background for output %d to %s",
                                 output_i, oc->background);
 
                 size_t len = snprintf(NULL, 0, "%s %d \"%s\" %s %s",
-                                config->swaybg_command ? config->swaybg_command : "swaybg",
-                                output_i, oc->background, oc->background_option,
+                                config->swaybg_command, output_i, oc->background,
+                                oc->background_option,
                                 oc->background_fallback ? oc->background_fallback : "");
                 char *command = malloc(len + 1);
                 if (!command) {
@@ -247,8 +246,8 @@ void apply_output_config(struct output_config *oc, struct sway_output *output) {
                         return;
                 }
                 snprintf(command, len + 1, "%s %d \"%s\" %s %s",
-                                config->swaybg_command ? config->swaybg_command : "swaybg",
-                                output_i, oc->background, oc->background_option,
+                                config->swaybg_command, output_i, oc->background,
+                                oc->background_option,
                                 oc->background_fallback ? oc->background_fallback : "");
                 wlr_log(WLR_DEBUG, "-> %s", command);
 
@@ -260,6 +259,7 @@ void apply_output_config(struct output_config *oc, struct sway_output *output) {
                         free(command);
                 }
         }
+
         if (oc) {
                 switch (oc->dpms_state) {
                 case DPMS_ON:
@@ -353,4 +353,3 @@ void create_default_output_configs(void) {
                 list_add(config->output_configs, oc);
         }
 }
-
diff --git a/sway/sway.5.scd b/sway/sway.5.scd
index 3fda6cef..c7d20b17 100644
--- a/sway/sway.5.scd
+++ b/sway/sway.5.scd
@@ -71,6 +71,9 @@ The following commands may only be used in the configuration file.
         Executes custom background _command_. Default is _swaybg_. Refer to
         *output* below for more information.
 
+        It can be disabled by setting the command to a single dash:
+        _swaybg\_command -_
+
 *swaynag\_command* <command>
         Executes custom command for _swaynag_. Default is _swaynag_. Additional
         arguments may be appended to the end. This should only be used to either