implement solid color rendering for swaybg

2 files changed, 44 insertions, 35 deletions

diff --git a/sway/commands.c b/sway/commands.c
index 053b5792..7247a407 100644
--- a/sway/commands.c
+++ b/sway/commands.c
@@ -1651,47 +1651,52 @@ static struct cmd_results *cmd_output(int argc, char **argv) {
                 } else if (strcasecmp(command, "background") == 0 || strcasecmp(command, "bg") == 0) {
                         wordexp_t p;
                         if (++i >= argc) {
-                                return cmd_results_new(CMD_INVALID, "output", "Missing background file.");
+                                return cmd_results_new(CMD_INVALID, "output", "Missing background file or color specification.");
                         }
                         if (i + 1 >= argc) {
-                                return cmd_results_new(CMD_INVALID, "output", "Missing background scaling mode.");
+                                return cmd_results_new(CMD_INVALID, "output", "Missing background scaling mode or `solid_color`.");
                         }
-                        char *src = join_args(argv + i, argc - i - 1);
-                        char *mode = argv[argc - 1];
-                        if (wordexp(src, &p, 0) != 0 || p.we_wordv[0] == NULL) {
-                                return cmd_results_new(CMD_INVALID, "output", "Invalid syntax (%s)", src);
-                        }
-                        free(src);
-                        src = p.we_wordv[0];
-                        if (config->reading && *src != '/') {
-                                char *conf = strdup(config->current_config);
-                                char *conf_path = dirname(conf);
-                                src = malloc(strlen(conf_path) + strlen(src) + 2);
-                                sprintf(src, "%s/%s", conf_path, p.we_wordv[0]);
-                                free(conf);
-                        }
-                        if (access(src, F_OK) == -1) {
-                                return cmd_results_new(CMD_INVALID, "output", "Background file unreadable (%s)", src);
-                        }
-                        for (char *m = mode; *m; ++m) *m = tolower(*m);
-                        // Check mode
-                        bool valid = false;
-                        size_t j;
-                        for (j = 0; j < sizeof(bg_options) / sizeof(char *); ++j) {
-                                if (strcasecmp(mode, bg_options[j]) == 0) {
-                                        valid = true;
-                                        break;
+                        if (strcasecmp(argv[argc - 1], "solid_color") == 0) {
+                                output->background = strdup(argv[argc - 2]);
+                                output->background_option = strdup("solid_color");
+                        } else {
+                                char *src = join_args(argv + i, argc - i - 1);
+                                char *mode = argv[argc - 1];
+                                if (wordexp(src, &p, 0) != 0 || p.we_wordv[0] == NULL) {
+                                        return cmd_results_new(CMD_INVALID, "output", "Invalid syntax (%s)", src);
                                 }
-                        }
-                        if (!valid) {
-                                return cmd_results_new(CMD_INVALID, "output", "Invalid background scaling mode.");
-                        }
-                        output->background = strdup(src);
-                        output->background_option = strdup(mode);
-                        if (src != p.we_wordv[0]) {
                                 free(src);
+                                src = p.we_wordv[0];
+                                if (config->reading && *src != '/') {
+                                        char *conf = strdup(config->current_config);
+                                        char *conf_path = dirname(conf);
+                                        src = malloc(strlen(conf_path) + strlen(src) + 2);
+                                        sprintf(src, "%s/%s", conf_path, p.we_wordv[0]);
+                                        free(conf);
+                                }
+                                if (access(src, F_OK) == -1) {
+                                        return cmd_results_new(CMD_INVALID, "output", "Background file unreadable (%s)", src);
+                                }
+                                for (char *m = mode; *m; ++m) *m = tolower(*m);
+                                // Check mode
+                                bool valid = false;
+                                size_t j;
+                                for (j = 0; j < sizeof(bg_options) / sizeof(char *); ++j) {
+                                        if (strcasecmp(mode, bg_options[j]) == 0) {
+                                                valid = true;
+                                                break;
+                                        }
+                                }
+                                if (!valid) {
+                                        return cmd_results_new(CMD_INVALID, "output", "Invalid background scaling mode.");
+                                }
+                                output->background = strdup(src);
+                                output->background_option = strdup(mode);
+                                if (src != p.we_wordv[0]) {
+                                        free(src);
+                                }
+                                wordfree(&p);
                         }
-                        wordfree(&p);
                 }
         }
 
diff --git a/sway/sway.5.txt b/sway/sway.5.txt
index 446995d5..787253a0 100644
--- a/sway/sway.5.txt
+++ b/sway/sway.5.txt
@@ -308,6 +308,10 @@ The default colors are:
         Sets the wallpaper for the given output to the specified file, using the given
         scaling mode (one of "stretch", "fill", "fit", "center", "tile").
 
+**output** <name> <background|bg> <color> solid_color::
+        Sets the background of the given output to the specified color. _color_ should
+        be specified as an _#rrggbb_ (no alpha) color.
+
 **output** <name> disable::
         Disables the specified output.