binding config

1 files changed, 173 insertions, 0 deletions

diff --git a/sway/commands/bind.c b/sway/commands/bind.c
new file mode 100644
index 00000000..62aa535a
--- /dev/null
+++ b/sway/commands/bind.c
@@ -0,0 +1,173 @@
+#ifdef __linux__
+#include <linux/input-event-codes.h>
+#elif __FreeBSD__
+#include <dev/evdev/input-event-codes.h>
+#endif
+#include <xkbcommon/xkbcommon.h>
+#include <xkbcommon/xkbcommon-names.h>
+#include <strings.h>
+#include "sway/commands.h"
+#include "sway/config.h"
+#include "list.h"
+#include "log.h"
+#include "stringop.h"
+#include "util.h"
+
+int binding_order = 0;
+
+void free_sway_binding(struct sway_binding *binding) {
+	if (binding->keys) {
+		for (int i = 0; i < binding->keys->length; i++) {
+			free(binding->keys->items[i]);
+		}
+		list_free(binding->keys);
+	}
+	if (binding->command) {
+		free(binding->command);
+	}
+	free(binding);
+}
+
+struct cmd_results *cmd_bindsym(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "bindsym", EXPECTED_MORE_THAN, 1))) {
+		return error;
+	}
+
+	struct sway_binding *binding = malloc(sizeof(struct sway_binding));
+	if (!binding) {
+		return cmd_results_new(CMD_FAILURE, "bindsym",
+				"Unable to allocate binding");
+	}
+	binding->keys = create_list();
+	binding->modifiers = 0;
+	binding->release = false;
+	binding->bindcode = false;
+
+	// Handle --release
+	if (strcmp("--release", argv[0]) == 0) {
+		if (argc >= 3) {
+			binding->release = true;
+			argv++;
+			argc--;
+		} else {
+			free_sway_binding(binding);
+			return cmd_results_new(CMD_FAILURE, "bindsym",
+				"Invalid bindsym command "
+				"(expected more than 2 arguments, got %d)", argc);
+		}
+	}
+
+	binding->command = join_args(argv + 1, argc - 1);
+
+	list_t *split = split_string(argv[0], "+");
+	for (int i = 0; i < split->length; ++i) {
+		// Check for a modifier key
+		uint32_t mod;
+		if ((mod = get_modifier_mask_by_name(split->items[i])) > 0) {
+			binding->modifiers |= mod;
+			continue;
+		}
+		// Check for xkb key
+		xkb_keysym_t sym = xkb_keysym_from_name(split->items[i],
+				XKB_KEYSYM_CASE_INSENSITIVE);
+
+		// Check for mouse binding
+		if (strncasecmp(split->items[i], "button", strlen("button")) == 0 &&
+				strlen(split->items[i]) == strlen("button0")) {
+			sym = ((char *)split->items[i])[strlen("button")] - '1' + BTN_LEFT;
+		}
+		if (!sym) {
+			struct cmd_results *ret = cmd_results_new(CMD_INVALID, "bindsym",
+					"Unknown key '%s'", (char *)split->items[i]);
+			free_sway_binding(binding);
+			free_flat_list(split);
+			return ret;
+		}
+		xkb_keysym_t *key = malloc(sizeof(xkb_keysym_t));
+		if (!key) {
+			free_sway_binding(binding);
+			free_flat_list(split);
+			return cmd_results_new(CMD_FAILURE, "bindsym",
+					"Unable to allocate binding");
+		}
+		*key = sym;
+		list_add(binding->keys, key);
+	}
+	free_flat_list(split);
+
+	struct sway_mode *mode = config->current_mode;
+	// TODO overwrite the binding if it already exists
+	binding->order = binding_order++;
+	list_add(mode->keysym_bindings, binding);
+
+	sway_log(L_DEBUG, "bindsym - Bound %s to command %s",
+		argv[0], binding->command);
+	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}
+
+struct cmd_results *cmd_bindcode(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "bindcode", EXPECTED_MORE_THAN, 1))) {
+		return error;
+	}
+
+	struct sway_binding *binding = malloc(sizeof(struct sway_binding));
+	if (!binding) {
+		return cmd_results_new(CMD_FAILURE, "bindsym",
+				"Unable to allocate binding");
+	}
+	binding->keys = create_list();
+	binding->modifiers = 0;
+	binding->release = false;
+	binding->bindcode = true;
+
+	// Handle --release
+	if (strcmp("--release", argv[0]) == 0) {
+		if (argc >= 3) {
+			binding->release = true;
+			argv++;
+			argc--;
+		} else {
+			free_sway_binding(binding);
+			return cmd_results_new(CMD_FAILURE, "bindcode",
+				"Invalid bindcode command "
+				"(expected more than 2 arguments, got %d)", argc);
+		}
+	}
+
+	binding->command = join_args(argv + 1, argc - 1);
+
+	list_t *split = split_string(argv[0], "+");
+	for (int i = 0; i < split->length; ++i) {
+		// Check for a modifier key
+		uint32_t mod;
+		if ((mod = get_modifier_mask_by_name(split->items[i])) > 0) {
+			binding->modifiers |= mod;
+			continue;
+		}
+		// parse keycode
+		xkb_keycode_t keycode = (int)strtol(split->items[i], NULL, 10);
+		if (!xkb_keycode_is_legal_ext(keycode)) {
+			error =
+				cmd_results_new(CMD_INVALID, "bindcode",
+					"Invalid keycode '%s'", (char *)split->items[i]);
+			free_sway_binding(binding);
+			list_free(split);
+			return error;
+		}
+		xkb_keycode_t *key = malloc(sizeof(xkb_keycode_t));
+		*key = keycode - 8;
+		list_add(binding->keys, key);
+	}
+	free_flat_list(split);
+
+	struct sway_mode *mode = config->current_mode;
+	// TODO overwrite binding if it already exists
+	binding->order = binding_order++;
+	list_add(mode->keycode_bindings, binding);
+
+	sway_log(L_DEBUG, "bindcode - Bound %s to command %s",
+		argv[0], binding->command);
+	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}