fix: 修复U盘插件不显示的问题

老版本的U盘插件没有适配icon接口，需要根据实际情况将itemWidget显示

Log: 修复U盘插件不显示的问题
Influence: 系统中使用v20的U盘插件，插入U盘，查看U盘图标是否显示
Task: https://pms.uniontech.com/task-view-223159.html
Change-Id: I7d2e7867203962ced078087c66fbddb7020d30df

frame/pluginadapter/pluginadapter.cpp

@@ -172,6 +172,10 @@ QIcon PluginAdapter::icon(const DockPart &dockPart, DGuiApplicationHelper::Color
     switch (dockPart) {
     case DockPart::QuickPanel:
     case DockPart::SystemPanel: {
+        // 如果是托盘插件，则让他返回空图标，直接将QWidget展示
+        if (m_pluginLoader->fileName().contains(TRAY_PATH))
+            return QIcon();
+
         // 如果图标为空，就使用itemWidget的截图作为它的图标，这种一般是适用于老版本插件或者没有实现v23接口的插件
         QSize oldSize = itemWidget->size();
         itemWidget->setFixedSize(ICONWIDTH, ICONHEIGHT);

frame/window/quickpluginwindow.cpp

@@ -234,10 +234,10 @@ bool QuickPluginWindow::eventFilter(QObject *watched, QEvent *event)
             break;
 
         QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);
-        if (m_dragInfo->canDrag(mouseEvent->pos())) {
+        if (m_dragInfo->canDrag(mouseEvent->pos()))
             startDrag();
-            m_dragInfo->reset();
-        }
+
+        m_dragInfo->reset();
         break;
     }
     case QEvent::Drop: {
@@ -694,7 +694,8 @@ void QuickDockItem::showEvent(QShowEvent *event)
 
     QWidget *itemWidget = m_pluginItem->itemWidget(m_itemKey);
     if (itemWidget && m_mainLayout->indexOf(itemWidget) < 0) {
-        itemWidget->setFixedSize(ICONWIDTH - 2, ICONHEIGHT - 2);
+        itemWidget->show();
+        itemWidget->setFixedSize(size());
         m_mainLayout->addWidget(itemWidget);
     }
 }
@@ -707,6 +708,7 @@ void QuickDockItem::hideEvent(QHideEvent *event)
     QWidget *itemWidget = m_pluginItem->itemWidget(m_itemKey);
     if (itemWidget && m_mainLayout->indexOf(itemWidget) >= 0) {
         itemWidget->setParent(m_dockItemParent);
+        itemWidget->hide();
         m_mainLayout->removeWidget(itemWidget);
     }
 }

frame/window/quickpluginwindow.h

@@ -97,7 +97,6 @@ public:
     explicit QuickDockItem(PluginsItemInterface *pluginItem, const QString &itemKey, QWidget *parent = nullptr);
     ~QuickDockItem();
 
-    void setPositon(Dock::Position position);
     PluginsItemInterface *pluginItem();
     bool canInsert() const;
     void hideToolTip();

frame/window/tray/widgets/systempluginitem.cpp

@@ -47,18 +47,20 @@ SystemPluginItem::SystemPluginItem(PluginsItemInterface *const pluginInter, cons
 {
     qDebug() << "load tray plugins item: " << m_pluginInter->pluginName() << itemKey << m_centralWidget;
 
+    QIcon icon = m_pluginInter->icon(DockPart::SystemPanel);
     if (m_centralWidget) {
-        m_centralWidget->setParent(this);
-        m_centralWidget->setVisible(true);
-        m_centralWidget->installEventFilter(this);
+        if (icon.isNull()) {
+            // 此处先创建一个Layout，在该窗体show的时候将m_centralWidget添加到layout上面
+            QBoxLayout *hLayout = new QHBoxLayout(this);
+            hLayout->setSpacing(0);
+            hLayout->setMargin(0);
+            setLayout(hLayout);
+            m_centralWidget->installEventFilter(this);
+        } else {
+            m_centralWidget->setVisible(false);
+        }
     }
 
-    QBoxLayout *hLayout = new QHBoxLayout(this);
-    hLayout->addWidget(m_centralWidget);
-    hLayout->setSpacing(0);
-    hLayout->setMargin(0);
-
-    setLayout(hLayout);
     setAccessibleName(m_itemKey);
     setAttribute(Qt::WA_TranslucentBackground);
 
@@ -194,8 +196,11 @@ bool SystemPluginItem::event(QEvent *event)
 
 bool SystemPluginItem::eventFilter(QObject *watched, QEvent *event)
 {
-    if (watched == this && event->type() == QEvent::DeferredDelete)
+    if (watched == this && event->type() == QEvent::DeferredDelete
+            && m_centralWidget && m_centralWidget->parentWidget()) {
         m_centralWidget->setParent(nullptr);
+        m_centralWidget->setVisible(false);
+    }
 
     return BaseTrayWidget::eventFilter(watched, event);
 }
@@ -282,6 +287,43 @@ void SystemPluginItem::showEvent(QShowEvent *event)
     return BaseTrayWidget::showEvent(event);
 }
 
+void SystemPluginItem::hideEvent(QHideEvent *event)
+{
+    if (m_pluginInter->icon(DockPart::SystemPanel).isNull()
+            && m_centralWidget && m_centralWidget->parentWidget() == this) {
+        layout()->removeWidget(m_centralWidget);
+        m_centralWidget->setParent(nullptr);
+        m_centralWidget->setVisible(false);
+    }
+    BaseTrayWidget::hideEvent(event);
+}
+
+void SystemPluginItem::paintEvent(QPaintEvent *event)
+{
+    QIcon icon = m_pluginInter->icon(DockPart::SystemPanel);
+    if (icon.isNull()) {
+        showCentralWidget();
+        return BaseTrayWidget::paintEvent(event);
+    }
+
+    int x = 0;
+    int y = 0;
+    QSize iconSize = this->size();
+    QList<QSize> sizes = icon.availableSizes();
+    if (sizes.size() > 0) {
+        QSize availableSize = sizes.first();
+        if (iconSize.width() > availableSize.width()) {
+            x = (iconSize.width() - availableSize.width()) / 2;
+            y = (iconSize.height() - availableSize.height()) / 2;
+            iconSize = availableSize;
+        }
+    }
+
+    QPixmap pixmap = icon.pixmap(iconSize);
+    QPainter painter(this);
+    painter.drawPixmap(QRect(QPoint(x, y), iconSize), pixmap);
+}
+
 const QPoint SystemPluginItem::popupMarkPoint() const
 {
     QPoint p(topleftPoint());
@@ -480,6 +522,16 @@ void SystemPluginItem::menuActionClicked(QAction *action)
     invokedMenuItem(action->data().toString(), true);
 }
 
+void SystemPluginItem::showCentralWidget()
+{
+    if (!m_pluginInter->icon(DockPart::SystemPanel).isNull() || !m_centralWidget)
+        return;
+
+    m_centralWidget->setParent(this);
+    m_centralWidget->setVisible(true);
+    layout()->addWidget(m_centralWidget);
+}
+
 void SystemPluginItem::onContextMenuAccepted()
 {
     emit requestRefershWindowVisible();

frame/window/tray/widgets/systempluginitem.h

@@ -31,6 +31,7 @@
 class QGSettings;
 class QMenu;
 class DockPopupWindow;
+class QHBoxLayout;
 
 class SystemPluginItem : public BaseTrayWidget
 {
@@ -72,7 +73,9 @@ protected:
     void leaveEvent(QEvent *event) override;
     void mousePressEvent(QMouseEvent *event) override;
     void mouseReleaseEvent(QMouseEvent *event) override;
-    void showEvent(QShowEvent* event) override;
+    void showEvent(QShowEvent *event) override;
+    void hideEvent(QHideEvent *event) override;
+    void paintEvent(QPaintEvent *event) override;
 
 protected:
     const QPoint popupMarkPoint() const;
@@ -95,6 +98,7 @@ private:
     void onGSettingsChanged(const QString &key);
     bool checkGSettingsControl() const;
     void menuActionClicked(QAction *action);
+    void showCentralWidget();
 
 private:
     bool m_popupShown;