web: dynamically generate (list-mode) keypad keys

This is currently only for match mode selection, but we'll reuse it to
implement more menus.

1 files changed, 52 insertions, 1 deletions

diff --git a/web/web_prompt.c b/web/web_prompt.c
index 2ceb2d4..3b5bc68 100644
--- a/web/web_prompt.c
+++ b/web/web_prompt.c
@@ -13,8 +13,18 @@
 
 int oi_timeout;
 
+enum prompt_mode {
+	PM_DARTBOARD,
+	PM_VISIT,
+	PM_NUM_DARTS,
+	PM_END_MATCH,
+	PM_SELECT_MODE
+};
 enum prompt_mode pm;
 
+static char *list_optv[10];
+static int list_optc;
+
 static struct {
 	bufstr msgl, msgr, input;
 } bufs;
@@ -61,6 +71,42 @@ void prompt_flush()
 		dom_set_content("#prompt-input", bufstr_flush(&bufs.input));
 }
 
+static void clear_list_opts()
+{
+	for (int i = 0; i < list_optc; ++i)
+		free(list_optv[i]);
+	list_optc = 0;
+}
+
+static void add_list_opt(char *str)
+{
+	list_optv[list_optc++] = strdup(str);
+}
+
+static void flush_list_opts()
+{
+	struct dom_elem **elemv = malloc(list_optc * sizeof(*elemv));
+
+	for (int i = 0; i < list_optc; ++i) {
+		struct dom_elem *e = dom_elem_init(NULL, "div", 2);
+		asprintf(&e->content, "[%d] %s", i + 1, list_optv[i]);
+		dom_elem_add_attr(e, "class", "key");
+
+		char buf[64];
+		sprintf(buf, "append:%d;submit", i + 1);
+		dom_elem_add_attr(e, "data-command", buf);
+
+		elemv[i] = e;
+	}
+
+	dom_set_content("#keypad-list", NULL);
+	dom_append_elemv("#keypad-list", list_optc, elemv);
+
+	for (int i = 0; i < list_optc; ++i)
+		dom_elem_free(elemv[i]);
+	free(elemv);
+}
+
 void set_prompt_mode(enum prompt_mode mode)
 {
 	pm = mode;
@@ -72,7 +118,7 @@ void set_prompt_mode(enum prompt_mode mode)
 
 	dom_set_uniq_class(
 		pm == PM_DARTBOARD ? "#keypad-dartboard" :
-			pm == PM_SELECT_MODE ? "#keypad-select_mode" :
+			pm == PM_SELECT_MODE ? "#keypad-list" :
 			"#keypad-default",
 		"visible", ".keypad");
 }
@@ -121,6 +167,11 @@ void prompt_select_mode()
 		clear_player_info(pn);
 	dom_set_content("#visits", NULL);
 
+	clear_list_opts();
+	add_list_opt("Play against bot");
+	add_list_opt("One-player scoreboard");
+	add_list_opt("Two-player scoreboard");
+	flush_list_opts();
 	set_prompt_mode(PM_SELECT_MODE);
 	prompt_set_msgl("Select match mode:");
 	prompt_set_msgr(NULL);