added animation config

README.md

@@ -25,6 +25,14 @@ Sway is an incredible window manager, and certainly one of the most well establi
 
 ## New Configuration Options
 
++ Fade in / out animations: `animation_duration <val>`: specifies the length of the animation in seconds
++ Corner radius: `corner_radius <val>`
++ Smart corner radius: `smart_corner_radius enable|disable`
++ Window shadows:
+    - `shadows enable|disable`
+    - `shadows_on_csd enable|disable` (**Note**: The shadow might not fit some windows)
+    - `shadow_blur_radius <integer value 0 - 100>`
+    - `shadow_color <hex color with alpha> ex, #0000007F`
 + Window blur:
     - `blur enable|disable`
     - `blur_xray enable|disable`: this will set floating windows to blur based on the background, not the windows below. You probably want to set this to `disable` :)
@@ -58,7 +66,6 @@ Sway is an incredible window manager, and certainly one of the most well establi
 
 ## Roadmap
 
-+ fade in / out animations
 + window movement animations
 
 ## Compiling From Source
@@ -127,4 +134,3 @@ We would also like to thank the talented artists in our community for contibutin
 + spooky_skeleton for the swayfx logo, and [Basil](https://basil.cafe) for making some fine adjustments to it
 
 Lastly, we would like to thank you, the community, for enjoying and using window manager that we have spent so much time maintaining.
-

include/sway/commands.h

@@ -108,6 +108,7 @@ bool cmd_corner_radius_parse_value(char *arg, int* result);
 sway_cmd cmd_exec_validate;
 sway_cmd cmd_exec_process;
 
+sway_cmd cmd_animation_duration;
 sway_cmd cmd_assign;
 sway_cmd cmd_bar;
 sway_cmd cmd_bindcode;

include/sway/config.h

@@ -479,6 +479,8 @@ struct blur_parameters {
  * The configuration struct. The result of loading a config file.
  */
 struct sway_config {
+	float animation_duration;
+
 	int corner_radius;
 	bool smart_corner_radius;
 

sway/commands.c

@@ -43,6 +43,7 @@ struct cmd_results *checkarg(int argc, const char *name, enum expected_args type
 
 /* Keep alphabetized */
 static const struct cmd_handler handlers[] = {
+	{ "animation_duration", cmd_animation_duration },
 	{ "assign", cmd_assign },
 	{ "bar", cmd_bar },
 	{ "bindcode", cmd_bindcode },

sway/commands/animation_duration.c

@@ -0,0 +1,21 @@
+#include <string.h>
+#include "sway/commands.h"
+#include "sway/config.h"
+#include "log.h"
+
+struct cmd_results *cmd_animation_duration(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "animation_duration", EXPECTED_EQUAL_TO, 1))) {
+		return error;
+	}
+
+	char *err;
+	float value = strtof(argv[0], &err);
+	if (*err || value < 0.0f || value > 1.0f) {
+		return cmd_results_new(CMD_FAILURE, "animation_duration value invalid");
+	}
+
+	config->animation_duration = value;
+
+	return cmd_results_new(CMD_SUCCESS, NULL);
+}

sway/config.c

@@ -341,6 +341,8 @@ static void config_defaults(struct sway_config *config) {
 	color_to_rgba(config->border_colors.background, 0xFFFFFFFF);
 
 	// SwayFX defaults
+	config->animation_duration = 0;
+
 	config->corner_radius = 0;
 	config->smart_corner_radius = true;
 

sway/desktop/output.c

@@ -522,16 +522,13 @@ static bool scan_out_fullscreen_view(struct sway_output *output,
 }
 
 static void containers_tick_alpha(list_t *containers, struct sway_output *output) {
-	// TODO: config for animation_duration
-	float animation_duration = 0.5;
-
 	float alpha_step;
 	for (int i = 0; i < containers->length; ++i) {
 		struct sway_container *con = containers->items[i];
 		if (con->pending.children) {
 			containers_tick_alpha(con->pending.children, output);
 		} else if (con->alpha < con->target_alpha) {
-			alpha_step = (con->target_alpha * output->refresh_sec) / animation_duration;
+			alpha_step = (con->target_alpha * output->refresh_sec) / config->animation_duration;
 			// ensure that the alpha does not exceed the target_alpha
 			con->alpha = MIN(con->alpha + alpha_step, con->target_alpha);
 			output_damage_whole_container(output, con);

sway/meson.build

@@ -49,6 +49,7 @@ sway_sources = files(
 	'config/seat.c',
 	'config/input.c',
 
+	'commands/animation_duration.c',
 	'commands/assign.c',
 	'commands/bar.c',
 	'commands/bind.c',

sway/sway.5.scd

@@ -378,6 +378,9 @@ set|plus|minus|toggle <amount>
 The following commands may be used either in the configuration file or at
 runtime.
 
+*animation_duration <seconds>*
+	Specifies the length of the animation in seconds, between 0 and 1 second.
+
 *assign* <criteria> [→] [workspace] [number] <workspace>
 	Assigns views matching _criteria_ (see *CRITERIA* for details) to
 	_workspace_. The → (U+2192) is optional and cosmetic. This command is