swaybar: add status_edge_padding command

This adds the bar subcommand `status_edge_padding <padding>` to set the
padding used when the status line is on the right edge of the bar.

include/sway/commands.h

@@ -198,6 +198,7 @@ sway_cmd bar_cmd_id;
 sway_cmd bar_cmd_position;
 sway_cmd bar_cmd_separator_symbol;
 sway_cmd bar_cmd_status_command;
+sway_cmd bar_cmd_status_edge_padding;
 sway_cmd bar_cmd_status_padding;
 sway_cmd bar_cmd_pango_markup;
 sway_cmd bar_cmd_strip_workspace_numbers;

include/sway/config.h

@@ -233,6 +233,7 @@ struct bar_config {
 	struct side_gaps gaps;
 	pid_t pid;
 	int status_padding;
+	int status_edge_padding;
 	struct {
 		char *background;
 		char *statusline;

include/swaybar/config.h

@@ -44,6 +44,7 @@ struct swaybar_config {
 	bool all_outputs;
 	int height;
 	int status_padding;
+	int status_edge_padding;
 	struct {
 		int top;
 		int right;

sway/commands/bar.c

@@ -23,6 +23,7 @@ static struct cmd_handler bar_handlers[] = {
 	{ "position", bar_cmd_position },
 	{ "separator_symbol", bar_cmd_separator_symbol },
 	{ "status_command", bar_cmd_status_command },
+	{ "status_edge_padding", bar_cmd_status_edge_padding },
 	{ "status_padding", bar_cmd_status_padding },
 	{ "strip_workspace_name", bar_cmd_strip_workspace_name },
 	{ "strip_workspace_numbers", bar_cmd_strip_workspace_numbers },

sway/commands/bar/status_edge_padding.c

@@ -0,0 +1,21 @@
+#include <stdlib.h>
+#include <string.h>
+#include "sway/commands.h"
+#include "log.h"
+
+struct cmd_results *bar_cmd_status_edge_padding(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "status_edge_padding", EXPECTED_EQUAL_TO, 1))) {
+		return error;
+	}
+	char *end;
+	int padding = strtol(argv[0], &end, 10);
+	if (strlen(end) || padding < 0) {
+		return cmd_results_new(CMD_INVALID, "status_edge_padding",
+				"Padding must be a positive integer");
+	}
+	config->current_bar->status_edge_padding = padding;
+	wlr_log(WLR_DEBUG, "Status edge padding on bar %s: %d",
+			config->current_bar->id, config->current_bar->status_edge_padding);
+	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}

sway/config/bar.c

@@ -107,6 +107,7 @@ struct bar_config *default_bar_config(void) {
 	bar->pid = 0;
 	bar->modifier = get_modifier_mask_by_name("Mod4");
 	bar->status_padding = 1;
+	bar->status_edge_padding = 3;
 	if (!(bar->mode = strdup("dock"))) {
 	       goto cleanup;
 	}

sway/ipc-json.c

@@ -662,6 +662,8 @@ json_object *ipc_json_describe_bar_config(struct bar_config *bar) {
 			json_object_new_int(bar->height));
 	json_object_object_add(json, "status_padding",
 			json_object_new_int(bar->status_padding));
+	json_object_object_add(json, "status_edge_padding",
+			json_object_new_int(bar->status_edge_padding));
 	json_object_object_add(json, "wrap_scroll",
 			json_object_new_boolean(bar->wrap_scroll));
 	json_object_object_add(json, "workspace_buttons",

sway/meson.build

@@ -116,6 +116,7 @@ sway_sources = files(
 	'commands/bar/position.c',
 	'commands/bar/separator_symbol.c',
 	'commands/bar/status_command.c',
+	'commands/bar/status_edge_padding.c',
 	'commands/bar/status_padding.c',
 	'commands/bar/strip_workspace_numbers.c',
 	'commands/bar/strip_workspace_name.c',

sway/sway-bar.5.scd

@@ -97,6 +97,11 @@ Sway allows configuring swaybar in the sway configuration file.
 	_1_. If _padding_ is _0_, blocks will be able to take up the full height of
 	the bar. This value will be multiplied by the output scale.
 
+*status\_edge\_padding* <padding>
+	Sets the padding that is used when the status line is at the right edge of
+	the bar. This value will be multiplied by the output scale. The default is
+	_3_.
+
 ## TRAY
 
 Swaybar provides a system tray where third-party applications may place icons.

swaybar/config.c

@@ -38,6 +38,7 @@ struct swaybar_config *init_config(void) {
 	config->bindings = create_list();
 	wl_list_init(&config->outputs);
 	config->status_padding = 1;
+	config->status_edge_padding = 3;
 
 	/* height */
 	config->height = 0;

swaybar/ipc.c

@@ -157,7 +157,7 @@ static bool ipc_parse_config(
 	json_object *font, *gaps, *bar_height, *wrap_scroll, *workspace_buttons;
 	json_object *strip_workspace_numbers, *strip_workspace_name;
 	json_object *binding_mode_indicator, *verbose, *colors, *sep_symbol;
-	json_object *outputs, *bindings, *status_padding;
+	json_object *outputs, *bindings, *status_padding, *status_edge_padding;
 	json_object_object_get_ex(bar_config, "mode", &mode);
 	json_object_object_get_ex(bar_config, "hidden_state", &hidden_state);
 	json_object_object_get_ex(bar_config, "position", &position);
@@ -177,6 +177,8 @@ static bool ipc_parse_config(
 	json_object_object_get_ex(bar_config, "pango_markup", &markup);
 	json_object_object_get_ex(bar_config, "bindings", &bindings);
 	json_object_object_get_ex(bar_config, "status_padding", &status_padding);
+	json_object_object_get_ex(bar_config, "status_edge_padding",
+			&status_edge_padding);
 	if (status_command) {
 		free(config->status_command);
 		config->status_command = strdup(json_object_get_string(status_command));
@@ -213,6 +215,9 @@ static bool ipc_parse_config(
 	if (status_padding) {
 		config->status_padding = json_object_get_int(status_padding);
 	}
+	if (status_edge_padding) {
+		config->status_edge_padding = json_object_get_int(status_edge_padding);
+	}
 	if (gaps) {
 		json_object *top = json_object_object_get(gaps, "top");
 		if (top) {

swaybar/render.c

@@ -194,8 +194,8 @@ static uint32_t render_status_block(cairo_t *cairo,
 			}
 		}
 		*x -= sep_block_width;
-	} else {
+	} else if (config->status_edge_padding) {
-		*x -= margin;
+		*x -= config->status_edge_padding * output->scale;
 	}
 
 	uint32_t height = output->height * output->scale;
@@ -287,7 +287,7 @@ static uint32_t render_status_block(cairo_t *cairo,
 static uint32_t render_status_line_i3bar(cairo_t *cairo,
 		struct swaybar_output *output, double *x) {
 	uint32_t max_height = 0;
-	bool edge = true;
+	bool edge = *x == output->width * output->scale;
 	struct i3bar_block *block;
 	wl_list_for_each(block, &output->bar->status->blocks, link) {
 		uint32_t h = render_status_block(cairo, output, block, x, edge);