quickshell/src/core/rootwrapper.cpp

129 lines
3.3 KiB
C++

#include "rootwrapper.hpp"
#include <cstdlib>
#include <utility>
#include <qdir.h>
#include <qfileinfo.h>
#include <qlogging.h>
#include <qobject.h>
#include <qqmlcomponent.h>
#include <qqmlengine.h>
#include <qtmetamacros.h>
#include <qurl.h>
#include "generation.hpp"
#include "qmlglobal.hpp"
#include "scan.hpp"
#include "shell.hpp"
RootWrapper::RootWrapper(QString rootPath)
: QObject(nullptr)
, rootPath(std::move(rootPath))
, originalWorkingDirectory(QDir::current().absolutePath()) {
// clang-format off
QObject::connect(QuickshellSettings::instance(), &QuickshellSettings::watchFilesChanged, this, &RootWrapper::onWatchFilesChanged);
// clang-format on
this->reloadGraph(true);
if (this->generation == nullptr) {
qCritical() << "could not create scene graph, exiting";
exit(-1); // NOLINT
}
}
RootWrapper::~RootWrapper() {
// event loop may no longer be running so deleteLater is not an option
if (this->generation != nullptr) {
delete this->generation->root;
this->generation->root = nullptr;
}
delete this->generation;
}
void RootWrapper::reloadGraph(bool hard) {
auto rootPath = QFileInfo(this->rootPath).dir();
auto scanner = QmlScanner(rootPath);
scanner.scanQmlFile(this->rootPath);
auto* generation = new EngineGeneration(rootPath, std::move(scanner));
generation->wrapper = this;
// todo: move into EngineGeneration
if (this->generation != nullptr) {
QuickshellSettings::reset();
}
QDir::setCurrent(this->originalWorkingDirectory);
auto url = QUrl::fromLocalFile(this->rootPath);
// unless the original file comes from the qsintercept scheme
url.setScheme("qsintercept");
auto component = QQmlComponent(generation->engine, url);
auto* obj = component.beginCreate(generation->engine->rootContext());
if (obj == nullptr) {
const QString error = "failed to create root component\n" + component.errorString();
qWarning().noquote() << error;
generation->destroy();
if (this->generation != nullptr && this->generation->qsgInstance != nullptr) {
emit this->generation->qsgInstance->reloadFailed(error);
}
return;
}
auto* newRoot = qobject_cast<ShellRoot*>(obj);
if (newRoot == nullptr) {
const QString error = "root component was not a Quickshell.ShellRoot";
qWarning().noquote() << error;
delete obj;
generation->destroy();
if (this->generation != nullptr && this->generation->qsgInstance != nullptr) {
emit this->generation->qsgInstance->reloadFailed(error);
}
return;
}
generation->root = newRoot;
component.completeCreate();
auto isReload = this->generation != nullptr;
generation->onReload(hard ? nullptr : this->generation);
if (hard && this->generation != nullptr) {
this->generation->destroy();
}
this->generation = generation;
qInfo() << "Configuration Loaded";
QObject::connect(
this->generation,
&EngineGeneration::filesChanged,
this,
&RootWrapper::onWatchedFilesChanged
);
this->onWatchFilesChanged();
if (isReload && this->generation->qsgInstance != nullptr) {
emit this->generation->qsgInstance->reloadCompleted();
}
}
void RootWrapper::onWatchFilesChanged() {
auto watchFiles = QuickshellSettings::instance()->watchFiles();
if (this->generation != nullptr) {
this->generation->setWatchingFiles(watchFiles);
}
}
void RootWrapper::onWatchedFilesChanged() { this->reloadGraph(false); }