vis-lua: add new theme_change event hook

2 files changed, 10 insertions, 17 deletions

diff --git a/README.md b/README.md
index c63c46a..be11bde 100644
--- a/README.md
+++ b/README.md
@@ -586,6 +586,7 @@ At this time there exists no API stability guarantees.
      - `quit()`
      - `win_open(win)`
      - `win_close(win)`
+     - `theme_change(name)`
    - `files()` iterator
    - `win` currently focused window
    - `windows()` iterator
diff --git a/vis-lua.c b/vis-lua.c
index 992be07..9a2642f 100644
--- a/vis-lua.c
+++ b/vis-lua.c
@@ -1224,25 +1224,17 @@ void vis_lua_win_close(Vis *vis, Win *win) {
 
 bool vis_theme_load(Vis *vis, const char *name) {
 	lua_State *L = vis->lua;
-	if (!L)
-		return false;
+	vis_lua_event_get(L, "theme_change");
+	if (lua_isfunction(L, -1)) {
+		if (name)
+			lua_pushstring(L, name);
+		else
+			lua_pushnil(L);
+		pcall(vis, L, 1, 0);
+	}
+	lua_pop(L, 1);
 	/* package.loaded['themes/'..name] = nil
 	 * require 'themes/'..name */
-	lua_pushstring(L, "themes/");
-	lua_pushstring(L, name);
-	lua_concat(L, 2);
-	lua_getglobal(L, "package");
-	lua_getfield(L, -1, "loaded");
-	lua_pushvalue(L, -3);
-	lua_pushnil(L);
-	lua_settable(L, -3);
-	lua_pop(L, 2);
-	lua_getglobal(L, "require");
-	lua_pushvalue(L, -2);
-	if (pcall(vis, L, 1, 0))
-		return false;
-	for (Win *win = vis->windows; win; win = win->next)
-		view_syntax_set(win->view, view_syntax_get(win->view));
 	return true;
 }