QtWebEngine

Your code works seamlessly for normal YouTube videos. Live video streams still have the flicker effect. Thanks for your time

@raven-worx file :ca.h #ifndef CA_H #define CA_H #include <QObject> #include <string> #include <QtWebEngineWidgets/qwebengineview.h> #include <QtWebEngineWidgets/qwebenginesettings.h> class CA:public QObject { Q_OBJECT public: CA(); void spider(const std::string& str); public slots: void finish(bool is_ok); private: QWebEngineView *view ; }; #endif // CA_H file:ca.cpp #include "ca.h" #include <QString> CA::CA() { view = nullptr; } void CA::spider(const std::string& str) { qDebug("spider"); if(view == nullptr) { qDebug("new QWebEngineView"); view = new QWebEngineView; view->setUrl(QUrl(QString::fromStdString(str))); QObject::connect( view , &QWebEngineView::loadFinished , this , &CA::finish ); QWebEngineSettings *setting = view->page()->settings(); setting->setAttribute( QWebEngineSettings::AutoLoadImages , false ); view->resize(1024, 750); } else { view->setUrl(QUrl(QString(str.c_str()))); } //view->show(); } void CA::finish(bool is_ok) { if(is_ok) { qDebug("load successed!"); view->page()->toHtml( [](const QString &str )mutable -> void { QString html = str ; qDebug()<<html; } ); } else { qDebug("load error!"); } } file main.cpp #include <QCoreApplication> #include <QApplication> #include "ca.h" using namespace std; int main(int argc, char *argv[]) { QApplication a(argc, argv); CA ca; ca.spider("https://dangdang.tmall.com/search.htm?search=y&orderType=newOn_desc&pageNo=88"); return a.exec(); } when the slots funcion nothing happened just cout load successed!

The solution was simple, i was inattentive, but Web Engine Team helps me, thanks guys webView.onNavigationRequested: { if(request.navigationType === WebEngineView.BackForwardNavigation) { print("onNavigationRequested", request.url) request.action = WebEngineView.IgnoreRequest; } }

Thanks for the pointer, @Andriy, although I must confess that I have given up on Qt WebEngine. No matter what the Qt guys may say, it's not, in my opinion, ready to replace Qt WebKit, as confirmed by QTBUG-52999 indeed (this won't be fixed before 5.8!), as well as the fact that they still ship the source code for Qt WebKit (and, from what I have seen, correct a few things here and there in Qt WebKit) and that the help in Qt Creator (which I understand now uses Qt WebEngine) doesn't render well anymore, etc.

Ok. Thanks for all.

For anyone interested, I solved the problem. None of the qtwebengine projects will run outside of QtCreator unless you run macdeployqt on the package first. But in order to get macdeployqt to work you need to specify the path to the Qml root directory of your project. macdeployqt path/to/quicknanobrowser.app -qmldir=./path/to/my/quicknanobrowser/root

I report this issue to official and but them not yet solved, you can vote it. My solution is automatically zoom in webpage when the dpi is high. https://bugreports.qt.io/browse/QTBUG-53449

That's a Known Issue, qt official will fix it in qt 5.7rc version. https://bugreports.qt.io/browse/QTBUG-52517?filter=17619

Solved: the cause was the stub in mesa3d drm backend. It's solved by altering the backend.

@Hans-Dijkema I have yet to try Qt 5.7 beta, but... it seems to me like you haven't installed QtWebEngine?...

@eureka And if this doesn't work you could use something like pdf.js (https://mozilla.github.io/pdf.js/)