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author | A Thousand Ships <96648715+AThousandShips@users.noreply.github.com> | 2024-01-18 17:20:56 +0100 |
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committer | A Thousand Ships <96648715+AThousandShips@users.noreply.github.com> | 2024-09-20 16:39:09 +0200 |
commit | 203d3be200c9b607e5eaba82d9a267813a6700cd (patch) | |
tree | ced60a02eabb92aca3759a2f7165fb78352e852c /core/object | |
parent | 2be730a05b7ff221b89c967981f7caee6e164ef0 (diff) | |
download | redot-engine-203d3be200c9b607e5eaba82d9a267813a6700cd.tar.gz |
[Core] Add way to check if a signal has any connections
Added to `Object` and `Signal`
Diffstat (limited to 'core/object')
-rw-r--r-- | core/object/object.cpp | 19 | ||||
-rw-r--r-- | core/object/object.h | 1 |
2 files changed, 20 insertions, 0 deletions
diff --git a/core/object/object.cpp b/core/object/object.cpp index 2d9d468d38..b3a4ec6e2e 100644 --- a/core/object/object.cpp +++ b/core/object/object.cpp @@ -1457,6 +1457,24 @@ bool Object::is_connected(const StringName &p_signal, const Callable &p_callable return s->slot_map.has(*p_callable.get_base_comparator()); } +bool Object::has_connections(const StringName &p_signal) const { + const SignalData *s = signal_map.getptr(p_signal); + if (!s) { + bool signal_is_valid = ClassDB::has_signal(get_class_name(), p_signal); + if (signal_is_valid) { + return false; + } + + if (!script.is_null() && Ref<Script>(script)->has_script_signal(p_signal)) { + return false; + } + + ERR_FAIL_V_MSG(false, "Nonexistent signal: " + p_signal + "."); + } + + return !s->slot_map.is_empty(); +} + void Object::disconnect(const StringName &p_signal, const Callable &p_callable) { _disconnect(p_signal, p_callable); } @@ -1697,6 +1715,7 @@ void Object::_bind_methods() { ClassDB::bind_method(D_METHOD("connect", "signal", "callable", "flags"), &Object::connect, DEFVAL(0)); ClassDB::bind_method(D_METHOD("disconnect", "signal", "callable"), &Object::disconnect); ClassDB::bind_method(D_METHOD("is_connected", "signal", "callable"), &Object::is_connected); + ClassDB::bind_method(D_METHOD("has_connections", "signal"), &Object::has_connections); ClassDB::bind_method(D_METHOD("set_block_signals", "enable"), &Object::set_block_signals); ClassDB::bind_method(D_METHOD("is_blocking_signals"), &Object::is_blocking_signals); diff --git a/core/object/object.h b/core/object/object.h index 1274247d71..763e2974b9 100644 --- a/core/object/object.h +++ b/core/object/object.h @@ -932,6 +932,7 @@ public: MTVIRTUAL Error connect(const StringName &p_signal, const Callable &p_callable, uint32_t p_flags = 0); MTVIRTUAL void disconnect(const StringName &p_signal, const Callable &p_callable); MTVIRTUAL bool is_connected(const StringName &p_signal, const Callable &p_callable) const; + MTVIRTUAL bool has_connections(const StringName &p_signal) const; template <typename... VarArgs> void call_deferred(const StringName &p_name, VarArgs... p_args) { |