/**************************************************************************/
/* signal_watcher.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "signal_watcher.h"
#include "core/object/callable_mp.h"
#include "core/object/class_db.h"
void SignalWatcher::_add_signal_entry(const Array &p_args, const String &p_name) {
if (!_signals.has(p_name)) {
_signals[p_name] = Array();
}
_signals[p_name].push_back(p_args);
}
void SignalWatcher::_signal_callback_zero(const String &p_name) {
Array args;
_add_signal_entry(args, p_name);
}
void SignalWatcher::_signal_callback_one(Variant p_arg1, const String &p_name) {
Array args = { p_arg1 };
_add_signal_entry(args, p_name);
}
void SignalWatcher::_signal_callback_two(Variant p_arg1, Variant p_arg2, const String &p_name) {
Array args = { p_arg1, p_arg2 };
_add_signal_entry(args, p_name);
}
void SignalWatcher::_signal_callback_three(Variant p_arg1, Variant p_arg2, Variant p_arg3, const String &p_name) {
Array args = { p_arg1, p_arg2, p_arg3 };
_add_signal_entry(args, p_name);
}
void SignalWatcher::watch_signal(Object *p_object, const String &p_signal) {
MethodInfo method_info;
ClassDB::get_signal(p_object->get_class(), p_signal, &method_info);
switch (method_info.arguments.size()) {
case 0: {
p_object->connect(p_signal, callable_mp(this, &SignalWatcher::_signal_callback_zero).bind(p_signal));
} break;
case 1: {
p_object->connect(p_signal, callable_mp(this, &SignalWatcher::_signal_callback_one).bind(p_signal));
} break;
case 2: {
p_object->connect(p_signal, callable_mp(this, &SignalWatcher::_signal_callback_two).bind(p_signal));
} break;
case 3: {
p_object->connect(p_signal, callable_mp(this, &SignalWatcher::_signal_callback_three).bind(p_signal));
} break;
default: {
MESSAGE("Signal ", p_signal, " arg count not supported.");
} break;
}
}
void SignalWatcher::unwatch_signal(Object *p_object, const String &p_signal) {
MethodInfo method_info;
ClassDB::get_signal(p_object->get_class(), p_signal, &method_info);
switch (method_info.arguments.size()) {
case 0: {
p_object->disconnect(p_signal, callable_mp(this, &SignalWatcher::_signal_callback_zero));
} break;
case 1: {
p_object->disconnect(p_signal, callable_mp(this, &SignalWatcher::_signal_callback_one));
} break;
case 2: {
p_object->disconnect(p_signal, callable_mp(this, &SignalWatcher::_signal_callback_two));
} break;
case 3: {
p_object->disconnect(p_signal, callable_mp(this, &SignalWatcher::_signal_callback_three));
} break;
default: {
MESSAGE("Signal ", p_signal, " arg count not supported.");
} break;
}
}
bool SignalWatcher::check(const String &p_name, const Array &p_args) {
if (!_signals.has(p_name)) {
MESSAGE("Signal ", p_name, " not emitted");
return false;
}
if (p_args.size() != _signals[p_name].size()) {
MESSAGE("Signal has " << _signals[p_name] << " expected " << p_args);
discard_signal(p_name);
return false;
}
bool match = true;
for (int i = 0; i < p_args.size(); i++) {
if (((Array)p_args[i]).size() != ((Array)_signals[p_name][i]).size()) {
MESSAGE("Signal has " << _signals[p_name][i] << " expected " << p_args[i]);
match = false;
continue;
}
for (int j = 0; j < ((Array)p_args[i]).size(); j++) {
if (((Array)p_args[i])[j] != ((Array)_signals[p_name][i])[j]) {
MESSAGE("Signal has " << _signals[p_name][i] << " expected " << p_args[i]);
match = false;
break;
}
}
}
discard_signal(p_name);
return match;
}
bool SignalWatcher::check_false(const String &p_name) {
bool has = _signals.has(p_name);
if (has) {
MESSAGE("Signal has " << _signals[p_name] << " expected none.");
}
discard_signal(p_name);
return !has;
}
void SignalWatcher::discard_signal(const String &p_name) {
if (_signals.has(p_name)) {
_signals.erase(p_name);
}
}
void SignalWatcher::_clear_signals() {
_signals.clear();
}
SignalWatcher::SignalWatcher() {
ERR_FAIL_COND_MSG(singleton, "Singleton in SignalWatcher already exists.");
singleton = this;
}
SignalWatcher::~SignalWatcher() {
if (this == singleton) {
singleton = nullptr;
}
}