fix: [extension] cause app cannot exit

webview could not quit normally, cause
app cannot exit.
Log: bug fix

Change-Id: Ifd4124da0506d4387835a1dcced2e0d2c9a0761f

src/plugins/core/gui/plugindetailsview.cpp

@@ -22,6 +22,15 @@ DetailsView::DetailsView(QWidget *parent)
     setupUi();
 }
 
+DetailsView::~DetailsView()
+{
+    if (webView) {
+        webView->stop();
+        // delete webView will cause app cannot exit.
+        webView->setParent(nullptr);
+    }
+}
+
 void DetailsView::update(const dpf::PluginMetaObjectPointer &metaInfo)
 {
     pluginMetaInfo = metaInfo;
@@ -94,7 +103,7 @@ void DetailsView::setupUi()
     logoLabel->setPixmap(QIcon::fromTheme("plugins-navigation").pixmap(QSize(128, 128)));
 
     auto webViewLayout = new QHBoxLayout(this);
-    QWebEngineView *webView = new QWebEngineView(this);
+    webView = new QWebEngineView();
     // TODO(mozart): load from local.
 //    webView->load(QUrl::fromLocalFile("url"));
     webView->load(QUrl("https://ecology.chinauos.com/adaptidentification/doc_new/#document2?dirid=656d40a9bd766615b0b02e5e"));

src/plugins/core/gui/plugindetailsview.h

@@ -14,6 +14,7 @@ QT_BEGIN_NAMESPACE
 class QGridLayout;
 class QVBoxLayout;
 class QSpacerItem;
+class QWebEngineView;
 QT_END_NAMESPACE
 
 DWIDGET_BEGIN_NAMESPACE
@@ -60,6 +61,7 @@ class DetailsView : public DTK_WIDGET_NAMESPACE::DWidget
     };
 
     explicit DetailsView(QWidget *parent = nullptr);
+    ~DetailsView();
 
     void update(const dpf::PluginMetaObjectPointer &metaInfo);
 
@@ -73,7 +75,7 @@ private slots:
     DTK_WIDGET_NAMESPACE::DLabel *metaInfoLabel {nullptr};
     DTK_WIDGET_NAMESPACE::DPushButton *loadBtn {nullptr};
     dpf::PluginMetaObjectPointer pluginMetaInfo;
-
+    QWebEngineView *webView {nullptr};
 };
 
 #endif // PLUGINDETAILSVIEW_H