Allow a fallback color to be specified for swaybg

This allows for a color to be set when the wallpaper does not fill the
entire output. If specified, the fallback color is also used when the
image path is inaccessible.

1 files changed, 28 insertions, 7 deletions

diff --git a/sway/commands/output/background.c b/sway/commands/output/background.c
index 4ed56c2a..e45b571e 100644
--- a/sway/commands/output/background.c
+++ b/sway/commands/output/background.c
@@ -6,6 +6,7 @@
 #include <errno.h>
 #include "sway/commands.h"
 #include "sway/config.h"
+#include "sway/swaynag.h"
 #include "log.h"
 #include "stringop.h"
 
@@ -36,6 +37,7 @@ struct cmd_results *output_cmd_background(int argc, char **argv) {
                 output->background = calloc(1, strlen(argv[0]) + 3);
                 snprintf(output->background, strlen(argv[0]) + 3, "\"%s\"", argv[0]);
                 output->background_option = strdup("solid_color");
+                output->background_fallback = NULL;
                 argc -= 2; argv += 2;
         } else {
                 bool valid = false;
@@ -104,16 +106,35 @@ struct cmd_results *output_cmd_background(int argc, char **argv) {
                         free(conf);
                 }
 
-                if (access(src, F_OK) == -1) {
-                        struct cmd_results *cmd_res = cmd_results_new(CMD_FAILURE, "output",
-                                "Unable to access background file '%s': %s", src, strerror(errno));
+                bool can_access = access(src, F_OK) != -1;
+                if (!can_access) {
+                        wlr_log(WLR_ERROR, "Unable to access background file '%s': %s",
+                                        src, strerror(errno));
+                        if (!config->validating) {
+                                swaynag_log(config->swaynag_command,
+                                                &config->swaynag_config_errors,
+                                                "Unable to access background file '%s'", src);
+                        }
                         free(src);
-                        return cmd_res;
+                } else {
+                        output->background = src;
+                        output->background_option = strdup(mode);
                 }
-
-                output->background = src;
-                output->background_option = strdup(mode);
                 argc -= j + 1; argv += j + 1;
+
+                output->background_fallback = NULL;
+                if (argc && *argv[0] == '#') {
+                        output->background_fallback = calloc(1, strlen(argv[0]) + 3);
+                        snprintf(output->background_fallback, strlen(argv[0]) + 3,
+                                        "\"%s\"", argv[0]);
+                        argc--; argv++;
+
+                        if (!can_access) {
+                                output->background = output->background_fallback;
+                                output->background_option = strdup("solid_color");
+                                output->background_fallback = NULL;
+                        }
+                }
         }
 
         config->handler_context.leftovers.argc = argc;