config moved to c++ plugin, removed old qml + fileview implementation

Plugins/ZShell/Config/ConfigSection.cpp

@@ -0,0 +1,87 @@
+#include "ConfigSection.hpp"
+
+#include <QMetaType>
+#include <QVariant>
+
+namespace {
+// Property index to start scanning from - skips QObject's own "objectName"
+// property, which we never want in the JSON.
+int firstOwnProperty() {
+    return QObject::staticMetaObject.propertyCount();
+}
+}
+
+ConfigSection::ConfigSection(QObject *parent) : QObject(parent) {}
+
+void ConfigSection::wireSignals() {
+    if (m_wired) return;
+    m_wired = true;
+
+    const QMetaObject *mo = metaObject();
+    const int slotIdx = mo->indexOfSlot("onPropertyChanged()");
+    Q_ASSERT(slotIdx != -1);
+    const QMetaMethod slot = mo->method(slotIdx);
+
+    const int start = firstOwnProperty();
+    for (int i = start; i < mo->propertyCount(); ++i) {
+        const QMetaProperty prop = mo->property(i);
+
+        if (prop.metaType().flags().testFlag(QMetaType::PointerToQObject)) {
+            if (auto *child = qobject_cast<ConfigSection *>(prop.read(this).value<QObject *>())) {
+                // Child sections bubble their changes straight up as our
+                // own changed() - no need to also react to our own notify.
+                connect(child, &ConfigSection::changed, this, &ConfigSection::changed);
+                continue;
+            }
+        }
+
+        if (prop.hasNotifySignal())
+            connect(this, prop.notifySignal(), this, slot);
+    }
+}
+
+void ConfigSection::onPropertyChanged() {
+    Q_EMIT changed();
+}
+
+void ConfigSection::fromJson(const QJsonObject &obj) {
+    const QMetaObject *mo = metaObject();
+    const int start = firstOwnProperty();
+
+    for (int i = start; i < mo->propertyCount(); ++i) {
+        const QMetaProperty prop = mo->property(i);
+        const QLatin1String name(prop.name());
+
+        if (!obj.contains(name)) continue;
+
+        if (prop.metaType().flags().testFlag(QMetaType::PointerToQObject)) {
+            if (auto *child = qobject_cast<ConfigSection *>(prop.read(this).value<QObject *>())) {
+                child->fromJson(obj.value(name).toObject());
+                continue;
+            }
+        }
+
+        if (prop.isWritable())
+            prop.write(this, obj.value(name).toVariant());
+    }
+}
+
+QJsonObject ConfigSection::toJson() const {
+    QJsonObject obj;
+    const QMetaObject *mo = metaObject();
+    const int start = firstOwnProperty();
+
+    for (int i = start; i < mo->propertyCount(); ++i) {
+        const QMetaProperty prop = mo->property(i);
+
+        if (prop.metaType().flags().testFlag(QMetaType::PointerToQObject)) {
+            if (auto *child = qobject_cast<ConfigSection *>(prop.read(this).value<QObject *>())) {
+                obj.insert(QLatin1String(prop.name()), child->toJson());
+                continue;
+            }
+        }
+
+        obj.insert(QLatin1String(prop.name()), QJsonValue::fromVariant(prop.read(this)));
+    }
+    return obj;
+}