bar-bindsym: address ianyfan's comments

sway/commands/bar/bindsym.c

@@ -33,12 +33,12 @@ struct cmd_results *bar_cmd_bindsym(int argc, char **argv) {
 	binding->button = 0;
 	if (strncasecmp(argv[0], "button", strlen("button")) == 0 &&
 			strlen(argv[0]) == strlen("button0")) {
-		binding->button = argv[0][strlen("button")] - '1' + 1;
+		binding->button = argv[0][strlen("button")] - '0';
 	}
-	if (binding->button == 0) {
+	if (binding->button < 1 || binding->button > 9) {
 		free_bar_binding(binding);
 		return cmd_results_new(CMD_FAILURE, "bar bindsym",
-				"Only button<n> is supported");
+				"Only button<1-9> is supported");
 	}
 
 	binding->command = join_args(argv + 1, argc - 1);

sway/config/bar.c

@@ -32,9 +32,7 @@ void free_bar_binding(struct bar_binding *binding) {
 	if (!binding) {
 		return;
 	}
-	if (binding->command) {
-		free(binding->command);
-	}
+	free(binding->command);
 	free(binding);
 }
 
@@ -49,9 +47,8 @@ void free_bar_config(struct bar_config *bar) {
 	free(bar->status_command);
 	free(bar->font);
 	free(bar->separator_symbol);
-	while (bar->bindings->length) {
-		struct bar_binding *binding = bar->bindings->items[0];
-		list_del(bar->bindings, 0);
+	for (int i = 0; i < bar->bindings->length; i++) {
+		struct bar_binding *binding = bar->bindings->items[i];
 		free_bar_binding(binding);
 	}
 	list_free(bar->bindings);

swaybar/bar.c

@@ -149,9 +149,6 @@ static bool check_bindings(struct swaybar *bar, uint32_t x11_button,
 	bool released = state == WL_POINTER_BUTTON_STATE_RELEASED;
 	for (int i = 0; i < bar->config->bindings->length; i++) {
 		struct swaybar_binding *binding = bar->config->bindings->items[i];
-		wlr_log(WLR_DEBUG, "Checking [%u, %d] against [%u, %d, %s]",
-				x11_button, released,
-				binding->button, binding->release, binding->command);
 		if (binding->button == x11_button && binding->release == released) {
 			ipc_execute_binding(bar, binding);
 			return true;
@@ -201,8 +198,12 @@ static void wl_pointer_axis(void *data, struct wl_pointer *wl_pointer,
 		return;
 	}
 
+	// If there is a button press binding, execute it, skip default behavior,
+	// and check button release bindings
 	if (check_bindings(bar, wl_axis_to_x11_button(axis, value),
-				WL_POINTER_BUTTON_STATE_PRESSED)) {
+			WL_POINTER_BUTTON_STATE_PRESSED)) {
+		check_bindings(bar, wl_axis_to_x11_button(axis, value),
+				WL_POINTER_BUTTON_STATE_RELEASED);
 		return;
 	}
 
@@ -273,6 +274,10 @@ static void wl_pointer_axis(void *data, struct wl_pointer *wl_pointer,
 	}
 
 	ipc_send_workspace_command(bar, new->name);
+
+	// Check button release bindings
+	check_bindings(bar, wl_axis_to_x11_button(axis, value),
+			WL_POINTER_BUTTON_STATE_RELEASED);
 }
 
 static void wl_pointer_frame(void *data, struct wl_pointer *wl_pointer) {

swaybar/config.c

@@ -72,16 +72,22 @@ struct swaybar_config *init_config(void) {
 	return config;
 }
 
+static void free_binding(struct swaybar_binding *binding) {
+	if (!binding) {
+		return;
+	}
+	free(binding->command);
+	free(binding);
+}
+
 void free_config(struct swaybar_config *config) {
 	free(config->status_command);
 	free(config->font);
 	free(config->mode);
 	free(config->sep_symbol);
-	while (config->bindings->length) {
-		struct swaybar_binding *binding = config->bindings->items[0];
-		list_del(config->bindings, 0);
-		free(binding->command);
-		free(binding);
+	for (int i = 0; i < config->bindings->length; i++) {
+		struct swaybar_binding *binding = config->bindings->items[i];
+		free_binding(binding);
 	}
 	list_free(config->bindings);
 	struct config_output *coutput, *tmp;

swaybar/ipc.c

@@ -338,6 +338,8 @@ static void ipc_get_outputs(struct swaybar *bar) {
 }
 
 void ipc_execute_binding(struct swaybar *bar, struct swaybar_binding *bind) {
+	wlr_log(WLR_DEBUG, "Executing binding for button %u (release=%d): `%s`",
+			bind->button, bind->release, bind->command);
 	uint32_t len = strlen(bind->command);
 	free(ipc_single_command(bar->ipc_socketfd,
 			IPC_COMMAND, bind->command, &len));