fix: defer icon source resolution until component completion

src/dde-control-center/plugin/dccobject.cpp

@@ -25,6 +25,7 @@
     , m_pageType(Menu)
     , m_weight(-1)
     , m_flags(0)
+    , m_componentComplete(false)
     , q_ptr(obj)
     , m_parent(nullptr)
     , m_currentObject(nullptr)
@@ -331,17 +332,25 @@
 {
     if (p_ptr->m_icon != icon) {
         p_ptr->m_icon = icon;
-        if (!icon.isEmpty()) {
-            QQmlContext *context = qmlContext(this);
-            p_ptr->m_iconSource = context ? context->resolvedUrl(icon) : icon;
-        } else {
-            p_ptr->m_iconSource.clear();
-        }
         Q_EMIT iconChanged(p_ptr->m_icon);
-        Q_EMIT iconSourceChanged(p_ptr->m_iconSource);
+        // 只在组件完成后才解析 URL
+        if (p_ptr->m_componentComplete) {
+            updateIconSource();
+        }
     }
 }
 
+void DccObject::updateIconSource()
+{
+    if (!p_ptr->m_icon.isEmpty()) {
+        QQmlContext *context = qmlContext(this);
+        p_ptr->m_iconSource = context ? context->resolvedUrl(p_ptr->m_icon) : p_ptr->m_icon;
+    } else {
+        p_ptr->m_iconSource.clear();
+    }
+    Q_EMIT iconSourceChanged(p_ptr->m_iconSource);
+}
+
 QUrl DccObject::iconSource() const
 {
     return p_ptr->m_iconSource;
@@ -488,4 +497,16 @@
     return p_ptr->getChildren();
 }
 
+void DccObject::classBegin()
+{
+}
+
+void DccObject::componentComplete()
+{
+    p_ptr->m_componentComplete = true;
+    if (!p_ptr->m_icon.isEmpty()) {
+        updateIconSource();
+    }
+}
+
 } // namespace dccV25

src/dde-control-center/plugin/dccobject.h

@@ -4,15 +4,18 @@
 #ifndef DCCOBJECT_H
 #define DCCOBJECT_H
 
 #include <QObject>
 #include <QQmlComponent>
 #include <QQmlListProperty>
+#include <QQmlParserStatus>
 #include <QQuickItem>
 
 namespace dccV25 {
-class DccObject : public QObject
+class DccModel;
+class DccObject : public QObject, public QQmlParserStatus
 {
     Q_OBJECT
+    Q_INTERFACES(QQmlParserStatus)
     QML_ELEMENT
 public:
     Q_PROPERTY(QString name READ name WRITE setName NOTIFY nameChanged)
@@ -118,6 +121,11 @@
     QQmlListProperty<QObject> data();
     const QVector<DccObject *> &getChildren() const;
 
+    // QQmlParserStatus interface
+    void classBegin() override;
+    void componentComplete() override;
+
+
     class Private;
 
 Q_SIGNALS:
@@ -162,6 +170,9 @@
 
 protected:
     DccObject::Private *p_ptr;
+
+private:
+    void updateIconSource();
 };
 } // namespace dccV25
 #endif // DCCOBJECT_H

src/dde-control-center/plugin/dccobject_p.h

@@ -70,6 +70,7 @@ class DccObject::Private
     quint8 m_pageType;
     quint16 m_weight;
     quint32 m_flags;
+    bool m_componentComplete;
 
     DccObject *q_ptr;    // q指针
     DccObject *m_parent; // 父项