fix: [framework] improve appletitem management

Add debugging assistance function.
Fix the bug that appletitem cannot be released correctly.

Log: Improve item management.

include/dfm-framework/lifecycle/pluginquickmetadata.h

@@ -63,6 +63,7 @@ class PluginQuickMetaDataCreator final
 QT_BEGIN_NAMESPACE
 #ifndef QT_NO_DEBUG_STREAM
 Q_CORE_EXPORT QDebug operator<<(QDebug, const DPF_NAMESPACE::PluginQuickMetaData &);
+Q_CORE_EXPORT QDebug operator<<(QDebug, const DPF_NAMESPACE::PluginQuickMetaPtr &);
 #endif   // QT_NO_DEBUG_STREAM
 QT_END_NAMESPACE
 

include/dfm-gui/applet.h

@@ -55,6 +55,8 @@ class Applet : public QObject
     void setComponentUrl(const QUrl &url);
     Q_SIGNAL void componentUrlChanged(const QUrl &url);
 
+    void dumpAppletTree();
+
 protected:
     explicit Applet(AppletPrivate &dd, QObject *parent = nullptr);
     QScopedPointer<AppletPrivate> dptr;

include/dfm-gui/appletitem.h

@@ -23,6 +23,8 @@ class AppletItem : public QQuickItem
     Applet *applet() const;
     void setApplet(Applet *applet);
 
+    bool isCreateComplete() const;
+
     Q_INVOKABLE QQuickWindow *itemWindow() const;
     Q_SIGNAL void itemWindowChanged(QQuickWindow *window);
 

include/dfm-gui/windowhandle.h

@@ -15,7 +15,7 @@ class QQuickWindow;
 DFMGUI_BEGIN_NAMESPACE
 
 class Panel;
-class FileManagerWindowHandleData;
+class WindowHandleData;
 
 class WindowHandle
 {
@@ -32,7 +32,7 @@ class WindowHandle
 
 private:
     Q_DISABLE_COPY(WindowHandle);
-    QScopedPointer<FileManagerWindowHandleData> data;
+    QScopedPointer<WindowHandleData> data;
 };
 
 using WindowHandlePtr = QSharedPointer<WindowHandle>;

src/dfm-base/utils/clipboard.cpp

@@ -62,7 +62,7 @@ void onClipboardDataChanged()
         return;
     }
     const QString &data = mimeData->data(kGnomeCopyKey);
-    const static QRegExp regCut("cut\nfile://"), regCopy("copy\nfile://");
+    const static QRegularExpression regCut("cut\nfile://"), regCopy("copy\nfile://");
     if (data.contains(regCut)) {
         clipboardAction = ClipBoard::kCutAction;
     } else if (data.contains(regCopy)) {

src/dfm-framework/lifecycle/pluginmetaobject.cpp

@@ -221,7 +221,20 @@ Q_CORE_EXPORT QDebug operator<<(QDebug out, const DPF_NAMESPACE::PluginMetaObjec
 }
 
 /*!
- * \brief 重定向全局Debug打印 PluginQuickInfo 对象的函数
+ * \brief operator <<
+ * 重定向全局Debug入口函数
+ * \param out
+ * \param pointer
+ * \return
+ */
+Q_CORE_EXPORT QDebug operator<<(QDebug out, const DPF_NAMESPACE::PluginMetaObjectPointer &pointer)
+{
+    out << *pointer;
+    return out;
+}
+
+/*!
+ * \brief 重定向全局Debug打印 PluginQuickMetaData 对象的函数
  */
 Q_CORE_EXPORT QDebug operator<<(QDebug out, const DPF_NAMESPACE::PluginQuickMetaData &quickMeta)
 {
@@ -237,15 +250,11 @@ Q_CORE_EXPORT QDebug operator<<(QDebug out, const DPF_NAMESPACE::PluginQuickMeta
 }
 
 /*!
- * \brief operator <<
- * 重定向全局Debug入口函数
- * \param out
- * \param pointer
- * \return
+ * \brief 重定向全局Debug打印 PluginQuickMetaPtr 的函数
  */
-Q_CORE_EXPORT QDebug operator<<(QDebug out, const DPF_NAMESPACE::PluginMetaObjectPointer &pointer)
+Q_CORE_EXPORT QDebug operator<<(QDebug out, const DPF_NAMESPACE::PluginQuickMetaPtr &quickMetaPtr)
 {
-    out << *pointer;
+    out << *quickMetaPtr;
     return out;
 }
 

src/dfm-gui/applet.cpp

@@ -5,6 +5,7 @@
 #include <dfm-gui/applet.h>
 #include <dfm-gui/containment.h>
 #include "applet_p.h"
+#include "containment_p.h"
 
 #include <QJSEngine>
 
@@ -19,6 +20,7 @@ AppletPrivate::~AppletPrivate()
 {
     // 释放关联的 QQuickItem
     if (rootObject && QJSEngine::CppOwnership == QJSEngine::objectOwnership(rootObject)) {
+        Q_ASSERT_X(rootObject->parent() == q_ptr, "AppletItem memory management", "Undefined behaviour, unmanaged QQuickItem");
         rootObject->deleteLater();
     }
 }
@@ -34,6 +36,24 @@ void AppletPrivate::setRootObject(QObject *item)
     Q_EMIT q_func()->rootObjectChanged(item);
 }
 
+/*!
+ * \brief 按层级递归打印当前 Applet 树信息
+ */
+void AppletPrivate::dumpAppletTreeImpl(int level)
+{
+    QString indent = QString(' ').repeated(level * 4);
+    qCDebug(logDFMGui) << indent << metaPtr;
+
+    if (flag.testFlag(Applet::kContainment)) {
+        if (auto containment = dynamic_cast<ContainmentPrivate *>(this)) {
+            qCDebug(logDFMGui) << indent << QStringLiteral("Applet chiledren:");
+            for (Applet *child : containment->applets) {
+                child->dptr->dumpAppletTreeImpl(level + 1);
+            }
+        }
+    }
+}
+
 /*!
  * \class Applet
  * \brief 管理插件 QML 组件的最小单元，包含基础的组件信息.
@@ -94,22 +114,16 @@ QObject *Applet::rootObject() const
 }
 
 /*!
- * \brief 返回当前 Applet 的容器 Containment , 若自身是容器则会返回当前对象
- * \return 容器指针
+ * \brief 返回当前 Applet 的容器 Containment , 会递归向上查找
+ * \return 容器指针，若父对象没有容器，返回 nullptr
  */
 Containment *Applet::containment() const
 {
-    Containment *contain = qobject_cast<Containment *>(const_cast<Applet *>(this));
-    if (contain) {
-        return contain;
-    }
-    contain = nullptr;
-
+    Containment *contain = nullptr;
     QObject *parent = this->parent();
 
     while (parent) {
-        Containment *tmp = qobject_cast<Containment *>(parent);
-        if (tmp) {
+        if (Containment *tmp = qobject_cast<Containment *>(parent)) {
             contain = tmp;
             break;
         }
@@ -155,4 +169,12 @@ void Applet::setComponentUrl(const QUrl &url)
     }
 }
 
+/*!
+ * \brief 打印当前 Applet 树信息
+ */
+void Applet::dumpAppletTree()
+{
+    d_func()->dumpAppletTreeImpl();
+}
+
 DFMGUI_END_NAMESPACE

src/dfm-gui/applet_p.h

@@ -23,6 +23,7 @@ class AppletPrivate
     virtual ~AppletPrivate();
 
     void setRootObject(QObject *item);
+    void dumpAppletTreeImpl(int level = 0);
 
     Applet *q_ptr;
     QUrl currentUrl;   // 当前 Applet 操作的文件 Url

src/dfm-gui/appletitem.cpp

@@ -38,6 +38,16 @@ void AppletItem::setApplet(Applet *applet)
     d_func()->applet = applet;
 }
 
+/*!
+ * \return 返回当前 Item 是否被初始化完成，目前是对 QQuickItem::isComponentComplete
+ *  的封装，用于判断是否被 QQmlEngine 完成创建
+ */
+bool AppletItem::isCreateComplete() const
+{
+    Q_D(const AppletItem);
+    return isComponentComplete() && d->applet;
+}
+
 /*!
  * \return 当前 Item 所在的顶层窗体
  */
@@ -81,6 +91,7 @@ AppletItem *AppletItem::itemForApplet(Applet *applet)
     QObject *rootObject = engine.rootObject();
     if (rootObject) {
         if (auto item = qobject_cast<AppletItem *>(rootObject)) {
+            item->setApplet(applet);
             applet->dptr->setRootObject(item);
             return item;
         }

src/dfm-gui/appletmanager.cpp

@@ -77,10 +77,14 @@ Applet *AppletManagerPrivate::createAppletFromNode(const AppletTemplateNode::Ptr
     }
 
     if (applet->flags().testFlag(Applet::kContainment) && !node->childNode.isEmpty()) {
-        Containment *cotainment = applet->containment();
+        Containment *containment = qobject_cast<Containment *>(applet);
+        if (!containment) {
+            return nullptr;
+        }
+
         for (auto childNode : std::as_const(node->childNode)) {
             Applet *childApplet = createAppletFromNode(childNode, nullptr);
-            cotainment->appendApplet(childApplet);
+            containment->appendApplet(childApplet);
         }
     }
 

src/dfm-gui/attachedproperty.cpp

@@ -24,24 +24,6 @@ AppletAttached::~AppletAttached() { }
 
 Applet *AppletAttached::qmlAttachedProperties(QObject *object)
 {
-    AppletItem *item = qobject_cast<AppletItem *>(object);
-    if (item) {
-        return item->applet();
-    }
-    Applet *applet = qobject_cast<Applet *>(object);
-    if (applet) {
-        return applet;
-    }
-
-    QObject *parent = object->parent();
-    while (parent) {
-        if (auto parItem = qobject_cast<AppletItem *>(parent)) {
-            return parItem->applet();
-        }
-
-        parent = parent->parent();
-    }
-
     if (auto context = qmlContext(object)) {
         return context->contextProperty("_dfm_applet").value<Applet *>();
     }
@@ -62,7 +44,8 @@ ContainmentAttached::~ContainmentAttached() { }
 
 Containment *ContainmentAttached::qmlAttachedProperties(QObject *object)
 {
-    return qobject_cast<Containment *>(AppletAttached::qmlAttachedProperties(object));
+    auto contain = qobject_cast<Containment *>(AppletAttached::qmlAttachedProperties(object));
+    return contain;
 }
 
 DFMGUI_END_NAMESPACE

src/dfm-gui/windowhandle.cpp

@@ -9,7 +9,7 @@
 
 DFMGUI_BEGIN_NAMESPACE
 
-class FileManagerWindowHandleData : public QSharedData
+class WindowHandleData : public QSharedData
 {
 public:
     QPointer<Panel> panel;
@@ -22,18 +22,18 @@ class FileManagerWindowHandleData : public QSharedData
  * \brief 提供用于操作的窗口和Applet指针
  */
 WindowHandle::WindowHandle()
-    : data(new FileManagerWindowHandleData)
+    : data(new WindowHandleData)
 {
 }
 
 WindowHandle::WindowHandle(const QString &error)
-    : data(new FileManagerWindowHandleData)
+    : data(new WindowHandleData)
 {
     data->errorString = error;
 }
 
 WindowHandle::WindowHandle(Panel *p, QQuickWindow *w)
-    : data(new FileManagerWindowHandleData)
+    : data(new WindowHandleData)
 {
     data->panel = p;
     data->window = w;

src/dfm-gui/windowmanager.cpp

@@ -40,6 +40,7 @@ void WindowManagerPrivate::asyncLoadQuickItem(Applet *applet)
             tmpEngine->completeCreation();
             QObject *rootObject = tmpEngine->rootObject();
             if (AppletItem *item = qobject_cast<AppletItem *>(rootObject)) {
+                item->setApplet(applet);
                 applet->dptr->setRootObject(item);
 
                 if (auto containment = applet->containment()) {