diff options
Diffstat (limited to 'src/webenginewidgets')
4 files changed, 43 insertions, 9 deletions
diff --git a/src/webenginewidgets/api/qtwebenginewidgetsglobal.cpp b/src/webenginewidgets/api/qtwebenginewidgetsglobal.cpp index e47f135e8..bf3514f71 100644 --- a/src/webenginewidgets/api/qtwebenginewidgetsglobal.cpp +++ b/src/webenginewidgets/api/qtwebenginewidgetsglobal.cpp @@ -48,17 +48,22 @@ namespace QtWebEngineCore } QT_BEGIN_NAMESPACE + +Q_GUI_EXPORT QOpenGLContext *qt_gl_global_share_context(); + static void initialize() { - //On window/ANGLE, calling QtWebEngine::initialize from DllMain will result in a crash. - //To ensure it doesn't, we check that when loading the library - //QCoreApplication is not yet instantiated, ensuring the call will be deferred -#if defined(Q_OS_WIN) - if (QCoreApplication::instance() - && QOpenGLContext::openGLModuleType() == QOpenGLContext::LibGLES) { + if (QCoreApplication::instance()) { + //On window/ANGLE, calling QtWebEngine::initialize from DllMain will result in a crash. + if (!qt_gl_global_share_context()) { + qWarning("Qt WebEngine seems to be initialized from a plugin. Please " + "set Qt::AA_ShareOpenGLContexts using QCoreApplication::setAttribute " + "before constructing QGuiApplication."); + } return; } -#endif + + //QCoreApplication is not yet instantiated, ensuring the call will be deferred qAddPreRoutine(QtWebEngineCore::initialize); } diff --git a/src/webenginewidgets/api/qwebenginepage.cpp b/src/webenginewidgets/api/qwebenginepage.cpp index ca160c362..0188cfef8 100644 --- a/src/webenginewidgets/api/qwebenginepage.cpp +++ b/src/webenginewidgets/api/qwebenginepage.cpp @@ -154,7 +154,16 @@ QWebEnginePagePrivate::~QWebEnginePagePrivate() RenderWidgetHostViewQtDelegate *QWebEnginePagePrivate::CreateRenderWidgetHostViewQtDelegate(RenderWidgetHostViewQtDelegateClient *client) { - return new RenderWidgetHostViewQtDelegateWidget(client); + // Set the QWebEngineView as the parent for a popup delegate, so that the new popup window + // responds properly to clicks in case the QWebEngineView is inside a modal QDialog. Setting the + // parent essentially notifies the OS that the popup window is part of the modal session, and + // should allow interaction. + // The new delegate will not be deleted by the parent view though, because we unset the parent + // when the parent is destroyed. The delegate will be destroyed by Chromium when the popup is + // dismissed. + // If the delegate is not for a popup, but for a newly created QWebEngineView, the parent is 0 + // just like before. + return new RenderWidgetHostViewQtDelegateWidget(client, this->view); } void QWebEnginePagePrivate::titleChanged(const QString &title) diff --git a/src/webenginewidgets/render_widget_host_view_qt_delegate_widget.cpp b/src/webenginewidgets/render_widget_host_view_qt_delegate_widget.cpp index eb3a3931a..8c8e9fb71 100644 --- a/src/webenginewidgets/render_widget_host_view_qt_delegate_widget.cpp +++ b/src/webenginewidgets/render_widget_host_view_qt_delegate_widget.cpp @@ -138,6 +138,21 @@ RenderWidgetHostViewQtDelegateWidget::RenderWidgetHostViewQtDelegateWidget(Rende setAttribute(Qt::WA_AcceptTouchEvents); setAttribute(Qt::WA_OpaquePaintEvent); setAttribute(Qt::WA_AlwaysShowToolTips); + + if (parent) { + // Unset the popup parent if the parent is being destroyed, thus making sure a double + // delete does not happen. + // Also in case the delegate is destroyed before its parent (when a popup is simply + // dismissed), this connection will automatically be removed by ~QObject(), preventing + // a use-after-free. + connect(parent, &QObject::destroyed, + this, &RenderWidgetHostViewQtDelegateWidget::removeParentBeforeParentDelete); + } +} + +void RenderWidgetHostViewQtDelegateWidget::removeParentBeforeParentDelete() +{ + setParent(Q_NULLPTR); } void RenderWidgetHostViewQtDelegateWidget::initAsChild(WebContentsAdapterClient* container) @@ -164,7 +179,11 @@ void RenderWidgetHostViewQtDelegateWidget::initAsPopup(const QRect& screenRect) // to be destroyed. setAttribute(Qt::WA_ShowWithoutActivating); setFocusPolicy(Qt::NoFocus); - setWindowFlags(Qt::ToolTip | Qt::FramelessWindowHint | Qt::WindowDoesNotAcceptFocus); + + // macOS doesn't like Qt::ToolTip when QWebEngineView is inside a modal dialog, specifically by + // not forwarding click events to the popup. So we use Qt::Tool which behaves the same way, but + // works on macOS too. + setWindowFlags(Qt::Tool | Qt::FramelessWindowHint | Qt::WindowDoesNotAcceptFocus); setGeometry(screenRect); show(); diff --git a/src/webenginewidgets/render_widget_host_view_qt_delegate_widget.h b/src/webenginewidgets/render_widget_host_view_qt_delegate_widget.h index 77907ec5a..68e6a176b 100644 --- a/src/webenginewidgets/render_widget_host_view_qt_delegate_widget.h +++ b/src/webenginewidgets/render_widget_host_view_qt_delegate_widget.h @@ -87,6 +87,7 @@ protected: private slots: void onWindowPosChanged(); + void removeParentBeforeParentDelete(); private: RenderWidgetHostViewQtDelegateClient *m_client; |