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config: ignore “self” when detecting key binding collisions

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Previously, foot would not accept the following:

  [key-bindings]
  minimize=Escape
  minimize=Escape

Now it does. I.e. key combos in the action being updated are ignored
when detecting collisions.

The example above is contrived; a real world example could be to
remove certain combos from an action with multiple combos; perhaps to
free up a combo for another action. Example:

  [search-bindings]
  cancel=Escape

This would previously cause an error since `cancel=Control+g Escape`
by default.

Closes #233
This commit is contained in:
Daniel Eklöf 2020-12-05 11:21:17 +01:00
parent a58557af30
commit 5e46672cf4
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GPG key ID: 5BBD4992C116573F
2 changed files with 17 additions and 4 deletions
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5
CHANGELOG.md
View file

@ -96,6 +96,11 @@ means foot can be PGO:d in e.g. sandboxed build scripts. See
### Deprecated
### Removed
### Fixed
* Error when re-assigning a default key binding
(https://codeberg.org/dnkl/foot/issues/233).
### Security

16
config.c
View file

@ -1024,10 +1024,14 @@ err:
}
static bool
has_key_binding_collisions(struct config *conf, const key_combo_list_t *key_combos,
has_key_binding_collisions(struct config *conf, enum bind_action_normal action,
const key_combo_list_t *key_combos,
const char *path, unsigned lineno)
{
tll_foreach(conf->bindings.key, it) {
if (it->item.action == action)
continue;
tll_foreach(*key_combos, it2) {
const struct config_key_modifiers *mods1 = &it->item.modifiers;
const struct config_key_modifiers *mods2 = &it2->item.modifiers;
@ -1055,10 +1059,14 @@ has_key_binding_collisions(struct config *conf, const key_combo_list_t *key_comb
}
static bool
has_search_binding_collisions(struct config *conf, const key_combo_list_t *key_combos,
has_search_binding_collisions(struct config *conf, enum bind_action_search action,
const key_combo_list_t *key_combos,
const char *path, unsigned lineno)
{
tll_foreach(conf->bindings.search, it) {
if (it->item.action == action)
continue;
tll_foreach(*key_combos, it2) {
const struct config_key_modifiers *mods1 = &it->item.modifiers;
const struct config_key_modifiers *mods2 = &it2->item.modifiers;
@ -1245,7 +1253,7 @@ parse_section_key_bindings(
key_combo_list_t key_combos = tll_init();
if (!parse_key_combos(conf, value, &key_combos, path, lineno) ||
has_key_binding_collisions(conf, &key_combos, path, lineno))
has_key_binding_collisions(conf, action, &key_combos, path, lineno))
{
free(pipe_argv);
free(pipe_cmd);
@ -1325,7 +1333,7 @@ parse_section_search_bindings(
key_combo_list_t key_combos = tll_init();
if (!parse_key_combos(conf, value, &key_combos, path, lineno) ||
has_search_binding_collisions(conf, &key_combos, path, lineno))
has_search_binding_collisions(conf, action, &key_combos, path, lineno))
{
free_key_combo_list(&key_combos);
return false;