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Refactor KeymapManager to enfore setting is_executing on key iteration

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Add an iterator based remove to HashMap as that was missing. Make
KeymapManager responsible for throwing on unmap an executing mapping.
This commit is contained in:
Maxime Coste 2023-05-29 20:08:02 +10:00
parent 3069b68245
commit cf7c638025
6 changed files with 39 additions and 31 deletions
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20
src/commands.cc
View File

@ -1598,7 +1598,7 @@ const CommandDesc debug_cmd = {
KeymapMode m = parse_keymap_mode(mode, user_modes);
for (auto& key : keymaps.get_mapped_keys(m))
write_to_debug_buffer(format(" * {} {}: {}",
mode, key, keymaps.get_mapping(key, m).docstring));
mode, key, keymaps.get_mapping_docstring(key, m)));
}
}
else if (parser[0] == "regex")
@ -1933,15 +1933,9 @@ const CommandDesc unmap_key_cmd = {
if (key.size() != 1)
throw runtime_error("only a single key can be unmapped");
if (not keymaps.is_mapped(key[0], keymap_mode))
return;
auto& mapping = keymaps.get_mapping(key[0], keymap_mode);
if (mapping.is_executing)
throw runtime_error("cannot unmap key that is currently executing");
if (parser.positional_count() < 4 or
(mapping.keys == parse_keys(parser[3])))
if (keymaps.is_mapped(key[0], keymap_mode) and
(parser.positional_count() < 4 or
keymaps.get_mapping_keys(key[0], keymap_mode) == ConstArrayView<Key>{parse_keys(parser[3])}))
keymaps.unmap_key(key[0], keymap_mode);
}
};
@ -2651,7 +2645,6 @@ void enter_user_mode(Context& context, String mode_name, KeymapMode mode, bool l
if (not context.keymaps().is_mapped(key, mode))
return;
auto& mapping = context.keymaps().get_mapping(key, mode);
ScopedSetBool disable_keymaps(context.keymaps_disabled());
ScopedSetBool disable_history(context.history_disabled());
@ -2659,11 +2652,8 @@ void enter_user_mode(Context& context, String mode_name, KeymapMode mode, bool l
ScopedEdition edition(context);
{
ScopedSetBool executing_mapping{mapping.is_executing};
for (auto& key : mapping.keys)
for (auto& key : context.keymaps().get_mapping_keys(key, mode))
context.input_handler().handle_key(key);
}
if (lock)
enter_user_mode(context, std::move(mode_name), mode, true);

9
src/hash_map.hh
View File

@ -328,6 +328,15 @@ struct HashMap
return const_cast<HashMap*>(this)->find(key);
}
constexpr void remove(const const_iterator& it)
{
auto index = it - m_items.begin();
const auto hash = hash_value(it->key);
m_index.remove(hash, index);
m_items.erase(it);
m_index.ordered_fix_entries(index);
}
constexpr void clear() { m_items.clear(); m_index.clear(); }
constexpr size_t size() const { return m_items.size(); }

4
src/input_handler.cc
View File

@ -1774,9 +1774,7 @@ void InputHandler::handle_key(Key key)
{
ScopedSetBool disable_history{context().history_disabled()};
auto& mapping = keymaps.get_mapping(key, keymap_mode);
ScopedSetBool executing_mapping{mapping.is_executing};
for (auto& k : mapping.keys)
for (auto& k : keymaps.get_mapping_keys(key, keymap_mode))
process_key(k);
}
else

7
src/keymap_manager.cc
View File

@ -18,7 +18,12 @@ void KeymapManager::map_key(Key key, KeymapMode mode,
void KeymapManager::unmap_key(Key key, KeymapMode mode)
{
m_mapping.remove(KeyAndMode{key, mode});
auto it = m_mapping.find(KeyAndMode{key, mode});
if (it == m_mapping.end())
return;
if (it->value.is_executing)
throw runtime_error("cannot unmap key that is currently executing");
m_mapping.remove(it);
}
void KeymapManager::unmap_keys(KeymapMode mode)

22
src/keymap_manager.hh
View File

@ -39,13 +39,13 @@ public:
bool is_mapped(Key key, KeymapMode mode) const;
KeyList get_mapped_keys(KeymapMode mode) const;
struct KeymapInfo
{
KeyList keys;
String docstring;
NestedBool is_executing{};
};
KeymapInfo& get_mapping(Key key, KeymapMode mode);
auto get_mapping_keys(Key key, KeymapMode mode) {
struct Keys : ConstArrayView<Key> { ScopedSetBool executing; };
auto& mapping = get_mapping(key, mode);
return Keys{mapping.keys, mapping.is_executing};
}
const String& get_mapping_docstring(Key key, KeymapMode mode) { return get_mapping(key, mode).docstring; }
using UserModeList = Vector<String>;
UserModeList& user_modes() {
@ -56,6 +56,14 @@ public:
void add_user_mode(String user_mode_name);
private:
struct KeymapInfo
{
KeyList keys;
String docstring;
NestedBool is_executing{};
};
KeymapInfo& get_mapping(Key key, KeymapMode mode);
KeymapManager()
: m_parent(nullptr) {}
// the only one allowed to construct a root map manager

6
src/normal.cc
View File

@ -191,7 +191,7 @@ String build_autoinfo_for_mapping(const Context& context, KeymapMode mode,
for (auto& key : keymaps.get_mapped_keys(mode))
descs.emplace_back(to_string(key),
keymaps.get_mapping(key, mode).docstring);
keymaps.get_mapping_docstring(key, mode));
auto max_len = 0_col;
for (auto& desc : descs)
@ -2025,7 +2025,6 @@ void exec_user_mappings(Context& context, NormalParams params)
if (not context.keymaps().is_mapped(key, KeymapMode::User))
return;
auto& mapping = context.keymaps().get_mapping(key, KeymapMode::User);
ScopedSetBool disable_keymaps(context.keymaps_disabled());
ScopedSetBool disable_history(context.history_disabled());
@ -2033,8 +2032,7 @@ void exec_user_mappings(Context& context, NormalParams params)
ScopedEdition edition(context);
ScopedSelectionEdition selection_edition{context};
ScopedSetBool executing_mapping{mapping.is_executing};
for (auto& key : mapping.keys)
for (auto& key : context.keymaps().get_mapping_keys(key, KeymapMode::User))
context.input_handler().handle_key(key);
}, "user mapping",
build_autoinfo_for_mapping(context, KeymapMode::User, {}));