Support floating_scroll sideways

include/config.h

@@ -186,6 +186,8 @@ struct sway_config {
 	uint32_t resizing_key;
     	char *floating_scroll_up_cmd;
 	char *floating_scroll_down_cmd;
+	char *floating_scroll_left_cmd;
+	char *floating_scroll_right_cmd;
 	enum swayc_layouts default_orientation;
 	enum swayc_layouts default_layout;
 	char *font;

sway/commands.c

@@ -726,6 +726,20 @@ static struct cmd_results *cmd_floating_scroll(int argc, char **argv) {
 		} else {
 			config->floating_scroll_down_cmd = join_args(argv + 1, argc - 1);
 		}
+	} else if (!strcasecmp("left", argv[0])) {
+		free(config->floating_scroll_left_cmd);
+		if (argc < 2) {
+			config->floating_scroll_left_cmd = strdup("");
+		} else {
+			config->floating_scroll_left_cmd = join_args(argv + 1, argc - 1);
+		}
+	} else if (!strcasecmp("right", argv[0])) {
+		free(config->floating_scroll_right_cmd);
+		if (argc < 2) {
+			config->floating_scroll_right_cmd = strdup("");
+		} else {
+			config->floating_scroll_right_cmd = join_args(argv + 1, argc - 1);
+		}
 	} else {
 		error = cmd_results_new(CMD_INVALID, "floating_scroll", "Unknown command: '%s'", argv[0]);
 		return error;

sway/config.c

@@ -133,6 +133,8 @@ void free_config(struct sway_config *config) {
 	free(config->font);
 	free(config->floating_scroll_up_cmd);
 	free(config->floating_scroll_down_cmd);
+	free(config->floating_scroll_left_cmd);
+	free(config->floating_scroll_right_cmd);
 	free(config);
 }
 
@@ -163,6 +165,8 @@ static void config_defaults(struct sway_config *config) {
 	config->resizing_key = M_RIGHT_CLICK;
 	config->floating_scroll_up_cmd = strdup("");
 	config->floating_scroll_down_cmd = strdup("");
+	config->floating_scroll_left_cmd = strdup("");
+	config->floating_scroll_right_cmd = strdup("");
 	config->default_layout = L_NONE;
 	config->default_orientation = L_NONE;
 	config->font = strdup("monospace 10");

sway/handlers.c

@@ -723,12 +723,18 @@ static bool handle_pointer_button(wlc_handle view, uint32_t time, const struct w
 bool handle_pointer_scroll(wlc_handle view, uint32_t time, const struct wlc_modifiers* modifiers,
 		uint8_t axis_bits, double _amount[2]) {
 	if (!(modifiers->mods ^ config->floating_mod)) {
-		int amount = (int)_amount[0];
-		if (amount > 0) {
+		int x_amount = (int)_amount[0];
+		int y_amount = (int)_amount[1];
+		if (x_amount > 0) {
 			handle_command(config->floating_scroll_up_cmd);
-		} else if (amount < 0) {
+		} else if (x_amount < 0) {
 			handle_command(config->floating_scroll_down_cmd);
 		}
+		if (y_amount > 0) {
+			handle_command(config->floating_scroll_right_cmd);
+		} else if (y_amount < 0) {
+			handle_command(config->floating_scroll_left_cmd);
+		}
 	}
 	return EVENT_PASSTHROUGH;
 }

sway/sway.5.txt

@@ -156,9 +156,9 @@ or triggered at runtime.
 	enabled, left click is used for resizing and right click for dragging. The
 	mode paramenter is optional and defaults to _normal_ if it isn't defined.
 
-**floating_scroll** <up|down> [command]::
-	Sets the command to be executed on scrolling up and down
-	(respectively) while holding the floating modifier. Resets the
+**floating_scroll** <up|down|left|right> [command]::
+	Sets the command to be executed on scrolling in the specified
+	direction while holding the floating modifier. Resets the
 	command, when given no arguments.
 
 **focus_follows_mouse** <yes|no>::