web: move opt logic to c

1 files changed, 8 insertions, 14 deletions

diff --git a/web/static/dartboat.js b/web/static/dartboat.js
index eaf76da..70e4677 100644
--- a/web/static/dartboat.js
+++ b/web/static/dartboat.js
@@ -7,6 +7,8 @@ function scheduleCCall(f, ms, ...args) {
 }
 
 function toCString(str) { // caller must free
+	if (!str) return 0;
+
 	const size = lengthBytesUTF8(str) + 1;
 	const ptr = _malloc(size);
 	stringToUTF8(str, ptr, size);
@@ -90,21 +92,12 @@ function promptHandle(command, data) {
 	if (str_d) _free(str_d);
 }
 
-function setOpt(opt, val, update_opts = true) {
-	if (update_opts) localStorage.setItem(`dartboat_${opt}`, val);
-
-	if (opt === 'delay' || opt === 'stdev')
-		Module[`_set_${opt}`](Number(val));
+function readOpt(opt) { // caller must free
+	return toCString(localStorage.getItem(UTF8ToString(opt)));
 }
 
-function readOpts() {
-	let val;
-
-	if ((val = localStorage.getItem('dartboat_delay')))
-		setOpt('delay', val, false);
-
-	if ((val = localStorage.getItem('dartboat_stdev')))
-		setOpt('stdev', val, false);
+function storeOpt(opt, val) {
+	localStorage.setItem(UTF8ToString(opt), UTF8ToString(val));
 }
 
 function boatAfloat() {
@@ -121,7 +114,8 @@ document.addEventListener('DOMContentLoaded', () => {
 		promptHandle(...x.split(':', 2)));
 	$$('[data-command]').forEach(x => x.addEventListener('click', f));
 
-	f = e => setOpt(e.target.dataset.setting, e.target.value);
+	f = e => _set_opt(toCString(e.target.dataset.setting),
+		toCString(e.target.value));
 	$$('[data-setting]').forEach(x => x.addEventListener('change', f));
 
 	f = e => $(`#${e.target.dataset.modal}`).style.display = 'block';