quickshell/src/core/singleton.cpp

59 lines
1.6 KiB
C++

#include "singleton.hpp"
#include <qhash.h>
#include <qlogging.h>
#include <qobject.h>
#include <qqmlcontext.h>
#include <qqmlengine.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;
return;
}
auto url = context->baseUrl();
if (this->parent() != nullptr || context->contextObject() != this) {
qWarning() << "Tried to register singleton" << this
<< "which is not the root component of its file" << url;
return;
}
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();
}
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;
}
this->registry.insert(url, singleton);
}
void SingletonRegistry::onReload(SingletonRegistry* old) {
for (auto [url, singleton]: this->registry.asKeyValueRange()) {
singleton->reload(old == nullptr ? nullptr : old->registry.value(url));
}
}
void SingletonRegistry::onPostReload() {
for (auto* singleton: this->registry.values()) {
PostReloadHook::postReloadTree(singleton);
}
}