fix: retain the active owner's caret

strans.c

@@ -7,6 +7,7 @@ static int visible = 0;
 static Lock ownerlock;
 static uvlong ownerctr;
 static uvlong activeowner;
+static Caret caret;
 static void dictqmap(Im*);
 static void dictqjp(Im*);
 static void backjp(Im*);
@@ -128,6 +129,7 @@ show(void)
 	if(n > Maxdisp) n = Maxdisp;
 	dc.nkouho = n;
 	dc.sel = im.sel >= 0 ? im.sel - first : -1;
+	dc.caret = caret;
 	for(i = 0; i < n; i++)
 		dc.kouho[i] = im.kouho[first + i];
 	if(dc.pre.n == 0 && n == 0 && !visible)
@@ -147,6 +149,7 @@ reset(void)
 	search.on = 0;
 	sclear(&search.raw);
 	sclear(&search.text);
+	memset(&caret, 0, sizeof caret);
 	clearkouho();
 	show();
 }
@@ -734,6 +737,7 @@ init(void)
 	memset(&im, 0, sizeof(im));
 	im.l = getlang(LangEN);
 	memset(&search, 0, sizeof search);
+	memset(&caret, 0, sizeof caret);
 	activeowner = 0;
 	visible = 0;
 }
@@ -763,13 +767,21 @@ imhandlekey(Keyreq *kr)
 		if(kr->owner == activeowner)
 			reset();
 		break;
+	case Keycaret:
+		if(kr->owner == activeowner){
+			caret = kr->caret;
+			show();
+		}
+		break;
 	default:
 		res.eaten = 0;
 		if(meaningful(kr)){
 			if(kr->owner != activeowner){
 				reset();
 				activeowner = kr->owner;
-			}
+				caret = kr->caret;
+			}else if(kr->caret.valid)
+				caret = kr->caret;
 			res.eaten = keystroke(kr->ks, kr->mod, &res.commit);
 		}
 		break;