So, using PyQt5's QWebEngineView and the .setHTML and .setContent methods have a 2 MB size limitation. When googling for solutions around this, I found two methods:
Use SimpleHTTPServer to serve the file. This however gets nuked by a firewall employed in the company.
Use File Urls and point to local files. This however is a rather bad solution, as the HTML contains confidential data and I can't leave it on the harddrive, under any circumstance.
The best solution I currently see is to use file urls, and get rid of the file on program exit/when loadCompleted reports it is done, whichever comes first.
This is however not a great solution and I wanted to ask if there is a solution I'm overlooking that would be better?
Why don't you load/link most of the content through a custom url scheme handler?
webEngineView->page()->profile()->installUrlSchemeHandler("app", new UrlSchemeHandler(e));
class UrlSchemeHandler : public QWebEngineUrlSchemeHandler
{ Q_OBJECT
public:
void requestStarted(QWebEngineUrlRequestJob *request) {
QUrl url = request->requestUrl();
QString filePath = url.path().mid(1);
// get the data for this url
QByteArray data = ..
//
if (!data.isEmpty())
{
QMimeDatabase db;
QString contentType = db.mimeTypeForFileNameAndData(filePath,data).name();
QBuffer *buffer = new QBuffer();
buffer->open(QIODevice::WriteOnly);
buffer->write(data);
buffer->close();
connect(request, SIGNAL(destroyed()), buffer, SLOT(deleteLater()));
request->reply(contentType.toUtf8(), buffer);
} else {
request->fail(QWebEngineUrlRequestJob::UrlNotFound);
}
}
};
you can then load a website by webEngineView->load(new QUrl("app://start.html"));
All relative pathes from inside will also be forwarded to your UrlSchemeHandler..
And rember to add the respective includes
#include <QWebEngineUrlRequestJob>
#include <QWebEngineUrlSchemeHandler>
#include <QBuffer>