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reload: encapsulate each engine generation more

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outfoxxed 2024-03-13 22:53:05 -07:00
parent 211f454de9
commit 1687ff3614
Signed by untrusted user: outfoxxed
GPG key ID: 4C88A185FB89301E
7 changed files with 125 additions and 79 deletions
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54
src/core/singleton.cpp
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@ -7,58 +7,48 @@
#include <qqmlengine.h>
#include <qurl.h>
#include "generation.hpp"
#include "reload.hpp"
void Singleton::componentComplete() {
auto* context = QQmlEngine::contextForObject(this);
if (context == nullptr) {
qWarning() << "not registering singleton not created in the qml context:" << this;
qWarning() << "Not registering singleton not created in the qml context:" << this;
return;
}
auto url = context->baseUrl();
if (this->parent() != nullptr || context->contextObject() != this) {
qWarning() << "tried to register singleton" << this
qWarning() << "Tried to register singleton" << this
<< "which is not the root component of its file" << url;
return;
}
SingletonRegistry::instance()->install(url, this);
auto* generation = EngineGeneration::findObjectGeneration(this);
if (generation == nullptr) {
qWarning() << "Tried to register singleton" << this
<< "which has no associated engine generation" << url;
return;
}
generation->singletonRegistry.registerSingleton(url, this);
this->ReloadPropagator::componentComplete();
}
SingletonRegistry::~SingletonRegistry() {
delete this->previousRegistry;
delete this->currentRegistry;
}
void SingletonRegistry::install(const QUrl& url, Singleton* singleton) {
QObject* old = nullptr;
if (this->previousRegistry != nullptr) {
old = this->previousRegistry->value(url);
void SingletonRegistry::registerSingleton(const QUrl& url, Singleton* singleton) {
if (this->registry.contains(url)) {
qWarning() << "Tried to register singleton twice for the same file" << url;
return;
}
if (this->currentRegistry == nullptr) {
this->currentRegistry = new QMap<QUrl, QObject*>();
this->registry.insert(url, singleton);
}
void SingletonRegistry::onReload(SingletonRegistry* old) {
for (auto [url, singleton]: this->registry.asKeyValueRange()) {
singleton->onReload(old == nullptr ? nullptr : old->registry.value(url));
}
this->currentRegistry->insert(url, singleton);
singleton->onReload(old);
}
void SingletonRegistry::flip() {
delete this->previousRegistry;
this->previousRegistry = this->currentRegistry;
this->currentRegistry = nullptr;
}
SingletonRegistry* SingletonRegistry::instance() {
static SingletonRegistry* instance = nullptr; // NOLINT
if (instance == nullptr) {
instance = new SingletonRegistry();
}
return instance;
}