Add layer_effects command

README.md

@@ -31,6 +31,8 @@ Sway is an incredible window manager, and certainly one of the most well establi
     - `blur_xray enable|disable`
     - `blur_passes <integer value 0 - 10>`
     - `blur_radius <integer value 0 - 10>`
++ LayerShell effects: *ONLY ON SWAYFX-GIT, NOT YET RELEASED*
+    - `layer_effects <layer namespace, eg: "waybar"> blur corner_radius`
 + Dim unfocused windows:
     - `default_dim_inactive <float value 0.0 - 1.0>`
     - `for_window [CRITERIA_HERE] dim_inactive <float value 0.0 - 1.0>`

include/sway/commands.h

@@ -157,6 +157,7 @@ sway_cmd cmd_input;
 sway_cmd cmd_seat;
 sway_cmd cmd_ipc;
 sway_cmd cmd_kill;
+sway_cmd cmd_layer_effects;
 sway_cmd cmd_layout;
 sway_cmd cmd_log_colors;
 sway_cmd cmd_mark;

include/sway/config.h

@@ -475,6 +475,12 @@ struct blur_parameters {
 	int radius;
 };
 
+struct layer_effects {
+	char *namespace;
+	bool blur;
+	bool corner_radius;
+};
+
 /**
  * The configuration struct. The result of loading a config file.
  */
@@ -500,6 +506,8 @@ struct sway_config {
 	bool titlebar_separator;
 	bool scratchpad_minimize;
 
+	list_t *layer_effects;
+
 	char *swaynag_command;
 	struct swaynag_instance swaynag_config_errors;
 	list_t *symbols;

include/sway/layers.h

@@ -3,6 +3,7 @@
 #include <stdbool.h>
 #include <wlr/types/wlr_compositor.h>
 #include <wlr/types/wlr_layer_shell_v1.h>
+#include "sway/config.h"
 
 enum layer_parent {
 	LAYER_PARENT_LAYER,
@@ -28,9 +29,7 @@ struct sway_layer_surface {
 
 	struct wl_list subsurfaces;
 
-	bool should_blur;
-	bool should_corner_radius;
-	bool should_shadow;
+	struct layer_effects *effects;
 };
 
 struct sway_layer_popup {

sway/commands.c

@@ -119,6 +119,7 @@ static const struct cmd_handler handlers[] = {
 static const struct cmd_handler config_handlers[] = {
 	{ "default_orientation", cmd_default_orientation },
 	{ "include", cmd_include },
+	{ "layer_effects", cmd_layer_effects },
 	{ "scratchpad_minimize", cmd_scratchpad_minimize },
 	{ "swaybg_command", cmd_swaybg_command },
 	{ "swaynag_command", cmd_swaynag_command },

sway/commands/layer_effects.c

@@ -0,0 +1,54 @@
+#include "sway/commands.h"
+#include "sway/config.h"
+#include "sway/output.h"
+#include "util.h"
+
+struct cmd_results *cmd_layer_effects(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "layer_effects", EXPECTED_AT_LEAST, 2))) {
+		return error;
+	}
+
+	struct layer_effects *effect = malloc(sizeof(struct layer_effects));
+	size_t len = sizeof(argv[0]);
+	effect->namespace = malloc(len + 1);
+	memcpy(effect->namespace, argv[0], len);
+	effect->blur = false;
+	effect->corner_radius = false;
+
+	// Parse the commands
+	for (int i = 1; i < argc; i++) {
+		char *arg = argv[i];
+		if (strcmp(arg, "blur") == 0) {
+			effect->blur = true;
+			continue;
+		} else if (strcmp(arg, "corner_rounding") == 0) {
+			effect->corner_radius = true;
+			continue;
+		}
+		return cmd_results_new(CMD_INVALID, "Invalid layer_effects effect! Got \"%s\"", arg);
+	}
+
+	if (!effect->blur && !effect->corner_radius) {
+		return cmd_results_new(CMD_SUCCESS, NULL);
+	}
+
+	// Check if the rule already exists
+	list_t *effects = config->layer_effects;
+	for (int i = 0; i < effects->length; ++i) {
+		struct layer_effects *existing = effects->items[i];
+		// Replace the duplicate entry
+		if (strcmp(existing->namespace, effect->namespace) == 0) {
+			memcpy(existing, effect, sizeof(struct layer_effects));
+			free(effect);
+			effect = NULL;
+			break;
+		}
+	}
+
+	if (effect) {
+		list_add(config->layer_effects, effect);
+	}
+
+	return cmd_results_new(CMD_SUCCESS, NULL);
+}

sway/config.c

@@ -157,6 +157,14 @@ void free_config(struct sway_config *config) {
 		}
 		list_free(config->criteria);
 	}
+	if (config->layer_effects) {
+		for (int i = 0; i < config->layer_effects->length; ++i) {
+			struct layer_effects *effect = config->criteria->items[i];
+			free(effect->namespace);
+			free(effect);
+		}
+		list_free(config->layer_effects);
+	}
 	list_free(config->no_focus);
 	list_free(config->active_bar_modifiers);
 	list_free_items_and_destroy(config->config_chain);
@@ -354,6 +362,8 @@ static void config_defaults(struct sway_config *config) {
 	config->titlebar_separator = true;
 	config->scratchpad_minimize = true;
 
+	if (!(config->layer_effects = create_list())) goto cleanup;
+
 	// The keysym to keycode translation
 	struct xkb_rule_names rules = {0};
 	config->keysym_translation_state =

sway/desktop/layer_shell.c

@@ -686,12 +686,14 @@ void handle_layer_shell_surface(struct wl_listener *listener, void *data) {
 	layer_surface->data = sway_layer;
 
 	enum zwlr_layer_shell_v1_layer layer = layer_surface->current.layer;
-	// TODO: Effects bool in config?
 	if (layer != ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM && layer != ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND) {
-		printf("Namespace: %s\n", layer_surface->namespace);
-		sway_layer->should_blur = true;
-		sway_layer->should_corner_radius = true;
-		sway_layer->should_shadow = true;
+		for (int i = 0; i < config->layer_effects->length; ++i) {
+			struct layer_effects *effect = config->layer_effects->items[i];
+			if (strcmp(effect->namespace, layer_surface->namespace) == 0) {
+				sway_layer->effects = effect;
+				break;
+			}
+		}
 	}
 
 	struct sway_output *output = layer_surface->output->data;

sway/desktop/output.c

@@ -200,10 +200,13 @@ void output_layer_for_each_toplevel_surface(struct sway_output *output,
 		struct wlr_layer_surface_v1 *wlr_layer_surface_v1 =
 			layer_surface->layer_surface;
 		struct fx_render_data *data = user_data;
-		data->deco_data.blur = layer_surface->should_blur;
-		data->deco_data.corner_radius =
-			layer_surface->should_corner_radius? config->corner_radius: 0;
-		data->is_toplevel_surface = true;
+		struct layer_effects *effects = layer_surface->effects;
+		if (effects) {
+			data->deco_data.blur = effects->blur;
+			data->deco_data.corner_radius =
+				effects->corner_radius? config->corner_radius: 0;
+			data->is_toplevel_surface = true;
+		}
 
 		output_surface_for_each_surface(output, wlr_layer_surface_v1->surface,
 			layer_surface->geo.x, layer_surface->geo.y, iterator,

sway/meson.build

@@ -91,6 +91,7 @@ sway_sources = files(
 	'commands/include.c',
 	'commands/input.c',
 	'commands/layout.c',
+	'commands/layer_effects.c',
 	'commands/mode.c',
 	'commands/mouse_warping.c',
 	'commands/move.c',

sway/sway.5.scd

@@ -71,6 +71,14 @@ The following commands may only be used in the configuration file.
 	*wordexp*(3) for details). The same include file can only be included once;
 	subsequent attempts will be ignored.
 
+*layer_effects* <layer-namespace> <effects>
+	Apply effects on specific layer shell surfaces, eg waybar or rofi.
+	At least one effect needs to be provided.
+
+	Effects:
+	- *blur*
+	- *corner_rounding*
+
 *scratchpad_minimize* enable|disable
 	Adjusts if minimized windows should be moved into the scratchpad.
 	Must be set at config-time (when starting sway).