lua: add mechanism for script provided key bindings

There was already an undocumented mechanism provided by
mp.set_key_bindings and other functions, but this was relatively
verbose, and also weird. It was mainly to make the OSC happy (including
being efficient and supporting weird corner cases), while the new
functions try to be a bit simpler.

This also provides a way to let users rebind script-provided commands.

(This mechanism is less efficient, because it's O(n^2) for n added key
bindings, but it shouldn't matter.)

1 files changed, 12 insertions, 1 deletions

diff --git a/player/lua.c b/player/lua.c
index dbe97cc278..e813d84bce 100644
--- a/player/lua.c
+++ b/player/lua.c
@@ -666,7 +666,18 @@ static int script_input_define_section(lua_State *L)
     struct MPContext *mpctx = get_mpctx(L);
     char *section = (char *)luaL_checkstring(L, 1);
     char *contents = (char *)luaL_checkstring(L, 2);
-    mp_input_define_section(mpctx->input, section, "<script>", contents, true);
+    char *flags = (char *)luaL_optstring(L, 3, "");
+    bool builtin = true;
+    if (strcmp(flags, "builtin") == 0) {
+        builtin = true;
+    } else if (strcmp(flags, "default") == 0) {
+        builtin = false;
+    } else if (strcmp(flags, "") == 0) {
+        //pass
+    } else {
+        luaL_error(L, "invalid flags: '%*'", flags);
+    }
+    mp_input_define_section(mpctx->input, section, "<script>", contents, builtin);
     return 0;
 }