Question

我在使用QWebView（Qt5.4）时遇到了另一个错误。我的应用程序非常简单，由一个主窗口构成，我的WebView是中央窗口小部件。在视图中，用户首先登录，然后出现一个页面，其中有3个选项卡，如下所示：

我可以使用Webkit Bridge检索我的对象的信息，但如果我点击任何其他选项卡，应用程序崩溃。这是输出：

ASSERTION FAILED: !m_dirty
platform\graphics\GraphicsLayerTransform.cpp(83) : WebCore::GraphicsLayerTransform::combined

和callstack：

Qt5WebKitd.dll！WTFCrash（）Ligne 345 C ++ Qt5WebKitd.dll！WebCore :: GraphicsLayerTransform :: combined（）Ligne 84 C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: computeOverlapRegions（WebCore :: Region＆amp; overlapRegion，WebCore :: Region＆amp; nonOverlapRegion，WebCore :: TextureMapperLayer :: ResolveSelfOverlapMode模式）Ligne 293 + 0x23八位字节C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: computeOverlapRegions（WebCore :: Region＆amp; overlapRegion，WebCore :: Region＆amp; nonOverlapRegion，WebCore :: TextureMapperLayer :: ResolveSelfOverlapMode模式）Ligne 310 C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: paintUsingOverlapRegions（const WebCore :: TextureMapperPaintOptions＆amp; options）Ligne 333 C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: paintRecursive（const WebCore :: TextureMapperPaintOptions＆amp; options）Ligne 460 C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: paintSelfAndChildren（const WebCore :: TextureMapperPaintOptions＆amp; options）Ligne 191 + 0x20八位字节C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: paintSelfAndChildrenWithReplica（const WebCore :: TextureMapperPaintOptions＆amp; options）Ligne 232 C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: paintRecursive（const WebCore :: TextureMapperPaintOptions＆amp; options）Ligne 456 C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: paintSelfAndChildren（const WebCore :: TextureMapperPaintOptions＆amp; options）Ligne 191 + 0x20八位字节C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: paintSelfAndChildrenWithReplica（const WebCore :: TextureMapperPaintOptions＆amp; options）Ligne 232 C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: paintRecursive（const WebCore :: TextureMapperPaintOptions＆amp; options）Ligne 456 C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: paintSelfAndChildren（const WebCore :: TextureMapperPaintOptions＆amp; options）Ligne 191 + 0x20八位字节C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: paintSelfAndChildrenWithReplica（const WebCore :: TextureMapperPaintOptions＆amp; options）Ligne 232 C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: paintRecursive（const WebCore :: TextureMapperPaintOptions＆amp; options）Ligne 456 C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: paintSelfAndChildren（const WebCore :: TextureMapperPaintOptions＆amp; options）Ligne 191 + 0x20八位字节C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: paintSelfAndChildrenWithReplica（const WebCore :: TextureMapperPaintOptions＆amp; options）Ligne 232 C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: paintRecursive（const WebCore :: TextureMapperPaintOptions＆amp; options）Ligne 456 C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: paintSelfAndChildren（const WebCore :: TextureMapperPaintOptions＆amp; options）Ligne 191 + 0x20八位字节C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: paintSelfAndChildrenWithReplica（const WebCore :: TextureMapperPaintOptions＆amp; options）Ligne 232 C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: paintRecursive（const WebCore :: TextureMapperPaintOptions＆amp; options）Ligne 456 C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: paintSelfAndChildren（const WebCore :: TextureMapperPaintOptions＆amp; options）Ligne 191 + 0x20八位字节C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: paintSelfAndChildrenWithReplica（const WebCore :: TextureMapperPaintOptions＆amp; options）Ligne 232 C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: paintRecursive（const WebCore :: TextureMapperPaintOptions＆amp; options）Ligne 456 C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayer :: paint（）Ligne 93 C ++ Qt5WebKitd.dll！WebCore :: TextureMapperLayerClientQt :: renderCompositedLayers（WebCore :: GraphicsContext * context，const WebCore :: IntRect＆amp; clip）Ligne 141 C ++ Qt5WebKitd.dll！QWebFrameAdapter :: renderCompositedLayers（WebCore :: GraphicsContext * context，const WebCore :: IntRect＆amp; clip）Ligne 448 C ++ Qt5WebKitd.dll！QWebFrameAdapter :: renderRelativeCoords（QPainter * painter，int layers，const QRegion＆amp; clip）Ligne 545 C ++ Qt5WebKitWidgetsd.dll！QWebFrame :: render（QPainter * painter，QFlags layer，const QRegion＆amp; clip）Ligne 644 + 0x1d八位字节C ++ Qt5WebKitWidgetsd.dll！QWebFrame :: render（QPainter * painter，const QRegion＆amp; clip）Ligne 655 C ++ Qt5WebKitWidgetsd.dll！QWebView :: paintEvent（QPaintEvent * ev）Ligne 835 C ++ Qt5Widgetsd.dll！QWidget :: event（QEvent * event）Ligne 8810 C ++ Qt5WebKitWidgetsd.dll！QWebView :: event（QEvent * e）Ligne 734 C ++ Qt5Widgetsd.dll！QApplicationPrivate :: notify_helper（QObject * receiver，QEvent * e）Ligne 3720 + 0x11八位字节C ++ Qt5Widgetsd.dll！QApplication :: notify（QObject * receiver，QEvent * e）Ligne 3685 + 0x10八位字节C ++ Qt5Cored.dll！QCoreApplication :: notifyInternal（QObject * receiver，QEvent * event）Ligne 935 + 0x15八位字节C ++ Qt5Cored.dll！QCoreApplication :: sendSpontaneousEvent（QObject * receiver，QEvent * event）Ligne 231 + 0x38八位字节C ++

有人知道如何解决这次崩溃吗？

如果需要，请输入我的代码：

MyObject::MyObject(QWidget *parent)
    : QMainWindow(parent)
{
    m_pView = new QWebView(this);
    m_pView->settings()->setAttribute(QWebSettings::JavascriptEnabled, true);
    m_pView->settings()->setAttribute(QWebSettings::DeveloperExtrasEnabled, true);


    connect(m_pView->page()->mainFrame(), SIGNAL(javaScriptWindowObjectCleared()), this, SLOT(addJSObject()));  

    m_pView->load(QUrl("file:///D:/DEV/Resources/index.html"));

    setCentralWidget(m_pView);
}

void MyObject::addJSObject()
{    
    m_pView->page()->mainFrame()->addToJavaScriptWindowObject(QString("MyObject"), this);
}

QWebView中的另一次崩溃

0 个答案: