Implement criteria commands

Implements the following commands:

* for_window [...] <cmdlist>
* assign [...] <workspace>

2 files changed, 98 insertions, 0 deletions

diff --git a/sway/commands/assign.c b/sway/commands/assign.c
new file mode 100644
index 00000000..bf0b1f63
--- /dev/null
+++ b/sway/commands/assign.c
@@ -0,0 +1,57 @@
+#define _XOPEN_SOURCE 700
+#include <stdio.h>
+#include <string.h>
+#include "sway/commands.h"
+#include "sway/criteria.h"
+#include "list.h"
+#include "log.h"
+
+struct cmd_results *cmd_assign(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "assign", EXPECTED_AT_LEAST, 2))) {
+		return error;
+	}
+
+	char *criteria = *argv++;
+
+	if (strncmp(*argv, "→", strlen("→")) == 0) {
+		if (argc < 3) {
+			return cmd_results_new(CMD_INVALID, "assign", "Missing workspace");
+		}
+		argv++;
+	}
+
+	char *movecmd = "move container to workspace ";
+	int arglen = strlen(movecmd) + strlen(*argv) + 1;
+	char *cmdlist = calloc(1, arglen);
+	if (!cmdlist) {
+		return cmd_results_new(CMD_FAILURE, "assign", "Unable to allocate command list");
+	}
+	snprintf(cmdlist, arglen, "%s%s", movecmd, *argv);
+
+	struct criteria *crit = malloc(sizeof(struct criteria));
+	if (!crit) {
+		free(cmdlist);
+		return cmd_results_new(CMD_FAILURE, "assign", "Unable to allocate criteria");
+	}
+	crit->crit_raw = strdup(criteria);
+	crit->cmdlist = cmdlist;
+	crit->tokens = create_list();
+	char *err_str = extract_crit_tokens(crit->tokens, crit->crit_raw);
+
+	if (err_str) {
+		error = cmd_results_new(CMD_INVALID, "assign", err_str);
+		free(err_str);
+		free_criteria(crit);
+	} else if (crit->tokens->length == 0) {
+		error = cmd_results_new(CMD_INVALID, "assign", "Found no name/value pairs in criteria");
+		free_criteria(crit);
+	} else if (list_seq_find(config->criteria, criteria_cmp, crit) != -1) {
+		wlr_log(L_DEBUG, "assign: Duplicate, skipping.");
+		free_criteria(crit);
+	} else {
+		wlr_log(L_DEBUG, "assign: '%s' -> '%s' added", crit->crit_raw, crit->cmdlist);
+		list_add(config->criteria, crit);
+	}
+	return error ? error : cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}
diff --git a/sway/commands/for_window.c b/sway/commands/for_window.c
new file mode 100644
index 00000000..a6aa7187
--- /dev/null
+++ b/sway/commands/for_window.c
@@ -0,0 +1,41 @@
+#define _XOPEN_SOURCE 500
+#include <string.h>
+#include "sway/commands.h"
+#include "sway/criteria.h"
+#include "list.h"
+#include "log.h"
+#include "stringop.h"
+
+struct cmd_results *cmd_for_window(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "for_window", EXPECTED_AT_LEAST, 2))) {
+		return error;
+	}
+	// add command to a criteria/command pair that is run against views when they appear.
+	char *criteria = argv[0], *cmdlist = join_args(argv + 1, argc - 1);
+
+	struct criteria *crit = malloc(sizeof(struct criteria));
+	if (!crit) {
+		return cmd_results_new(CMD_FAILURE, "for_window", "Unable to allocate criteria");
+	}
+	crit->crit_raw = strdup(criteria);
+	crit->cmdlist = cmdlist;
+	crit->tokens = create_list();
+	char *err_str = extract_crit_tokens(crit->tokens, crit->crit_raw);
+
+	if (err_str) {
+		error = cmd_results_new(CMD_INVALID, "for_window", err_str);
+		free(err_str);
+		free_criteria(crit);
+	} else if (crit->tokens->length == 0) {
+		error = cmd_results_new(CMD_INVALID, "for_window", "Found no name/value pairs in criteria");
+		free_criteria(crit);
+	} else if (list_seq_find(config->criteria, criteria_cmp, crit) != -1) {
+		wlr_log(L_DEBUG, "for_window: Duplicate, skipping.");
+		free_criteria(crit);
+	} else {
+		wlr_log(L_DEBUG, "for_window: '%s' -> '%s' added", crit->crit_raw, crit->cmdlist);
+		list_add(config->criteria, crit);
+	}
+	return error ? error : cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}