Implement bar option: output <output>

2 files changed, 49 insertions, 1 deletions

diff --git a/sway/commands.c b/sway/commands.c
index 23e6e68c..d05a9069 100644
--- a/sway/commands.c
+++ b/sway/commands.c
@@ -69,6 +69,7 @@ static sway_cmd bar_cmd_bindsym;
 static sway_cmd bar_cmd_colors;
 static sway_cmd bar_cmd_mode;
 static sway_cmd bar_cmd_modifier;
+static sway_cmd bar_cmd_output;
 static sway_cmd bar_cmd_height;
 static sway_cmd bar_cmd_hidden_state;
 static sway_cmd bar_cmd_id;
@@ -1724,6 +1725,47 @@ static struct cmd_results *bar_cmd_modifier(int argc, char **argv) {
         return cmd_results_new(CMD_SUCCESS, NULL, NULL);
 }
 
+static struct cmd_results *bar_cmd_output(int argc, char **argv) {
+        struct cmd_results *error = NULL;
+        if ((error = checkarg(argc, "output", EXPECTED_EQUAL_TO, 1))) {
+                return error;
+        }
+
+        if (!config->current_bar) {
+                return cmd_results_new(CMD_FAILURE, "output", "No bar defined.");
+        }
+
+        const char *output = argv[0];
+        list_t *outputs = config->current_bar->outputs;
+
+        int i;
+        int add_output = 1;
+        if (strcmp("*", output) == 0) {
+                // remove all previous defined outputs and replace with '*'
+                for (i = 0; i < outputs->length; ++i) {
+                        free(outputs->items[i]);
+                        list_del(outputs, i);
+                }
+        } else {
+                // only add output if not already defined with either the same
+                // name or as '*'
+                for (i = 0; i < outputs->length; ++i) {
+                        const char *find = outputs->items[i];
+                        if (strcmp("*", find) == 0 || strcmp(output, find) == 0) {
+                                add_output = 0;
+                                break;
+                        }
+                }
+        }
+
+        if (add_output) {
+                list_add(outputs, strdup(output));
+                sway_log(L_DEBUG, "Adding bar: '%s' to output '%s'", config->current_bar->id, output);
+        }
+
+        return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}
+
 static struct cmd_results *bar_cmd_position(int argc, char **argv) {
         struct cmd_results *error = NULL;
         if ((error = checkarg(argc, "position", EXPECTED_EQUAL_TO, 1))) {
@@ -1854,7 +1896,7 @@ static struct cmd_handler bar_handlers[] = {
         { "id", bar_cmd_id },
         { "mode", bar_cmd_mode },
         { "modifier", bar_cmd_modifier },
-        { "output", NULL },
+        { "output", bar_cmd_output },
         { "position", bar_cmd_position },
         { "seperator_symbol", NULL },
         { "status_command", bar_cmd_status_command },
diff --git a/sway/config.c b/sway/config.c
index 51dbe843..d4d3b0c8 100644
--- a/sway/config.c
+++ b/sway/config.c
@@ -48,6 +48,11 @@ static void free_bar(struct bar_config *bar) {
                 free_sway_mouse_binding(bar->bindings->items[i]);
         }
         free(bar->bindings);
+
+        for (i = 0; i < bar->outputs->length; ++i) {
+                free(bar->outputs->items[i]);
+        }
+        list_free(bar->outputs);
         free(bar);
 }
 
@@ -558,6 +563,7 @@ struct bar_config *default_bar_config(void) {
         bar->mode = strdup("dock");
         bar->hidden_state = strdup("hide");
         bar->modifier = 0;
+        bar->outputs = create_list();
         bar->position = DESKTOP_SHELL_PANEL_POSITION_BOTTOM;
         bar->bindings = create_list();
         bar->status_command = strdup("while :; do date +'%Y-%m-%d %l:%M:%S %p' && sleep 1; done");