fix gtk predit window

gtk/main.c

@@ -158,15 +158,19 @@ getpreedit(GtkIMContext *ctx, gchar **str, PangoAttrList **attrs,
 	PangoAttribute *u;
 
 	im = (Im*)ctx;
-	*str = g_strdup(im->pre);
-	*attrs = pango_attr_list_new();
-	if(im->prelen > 0){
-		u = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE);
-		u->start_index = 0;
-		u->end_index = im->prelen;
-		pango_attr_list_insert(*attrs, u);
+	if(str)
+		*str = g_strdup(im->pre);
+	if(attrs){
+		*attrs = pango_attr_list_new();
+		if(im->prelen > 0){
+			u = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE);
+			u->start_index = 0;
+			u->end_index = im->prelen;
+			pango_attr_list_insert(*attrs, u);
+		}
 	}
-	*cursor_pos = g_utf8_strlen(im->pre, -1);
+	if(cursor_pos)
+		*cursor_pos = g_utf8_strlen(im->pre, -1);
 }
 
 static void

ko.c

@@ -203,7 +203,6 @@ transko(Im *im, Rune c)
 			e.s = im->pre;
 			sclear(&im->pre);
 		}
-		sputr(&e.s, c);
 		return e;
 	}
 

run.sh

@@ -1,8 +1,7 @@
 #!/bin/sh
 
+cd "$(dirname "$0")"
 pkill strans
-pkill strans-xim
-
 sleep 1
 ./strans map font &
 sleep 1

strans.c

@@ -185,10 +185,8 @@ transmap(Im *im, Rune c)
 		e.s = im->pre;
 	sclear(&key);
 	sputr(&key, c);
-	if(!maplookup(t, &key, &e.dict)){
-		sputr(&e.s, c);
+	if(!maplookup(t, &key, &e.dict))
 		return e;
-	}
 	e.eat = 1;
 	sputr(&e.next, c);
 	return e;
@@ -273,14 +271,16 @@ keystroke(u32int ks, u32int mod, Str *com)
 		return 1;
 	}
 	if(ks > 0x7f || ks == ' '){
+		if(im.pre.n == 0)
+			return 0;
 		commit(com);
 		sputr(com, ks);
 		reset();
 		return 1;
 	}
-	dotrans(ks, com);
+	n = dotrans(ks, com);
 	show();
-	return 1;
+	return n;
 }
 
 static void

vi.c

@@ -101,10 +101,8 @@ transvi(Im *im, Rune c)
 		return transmap(im, c);
 
 	memset(&e, 0, sizeof e);
-	if(im->pre.n == 0){
-		sputr(&e.s, c);
+	if(im->pre.n == 0)
 		return e;
-	}
 	if(im->pre.r[im->pre.n - 1] == '\\'){
 		pre = im->pre;
 		pre.n--;