qt/webview_impl.cpp

 
#include <QApplication>
#include <QWebEngineView>
#include <QWebEngineProfile>
#include <QWebEngineUrlScheme>
#include <QWebEngineUrlSchemeHandler>
#include <QWebEngineUrlRequestJob>
 
#include <string>
#include <cstdlib>
#include <cstdarg>
#include <winpr/string.h>
#include <winpr/assert.h>
#include <freerdp/log.h>
#include <freerdp/build-config.h>
 
#include "../webview_impl.hpp"
 
#define TAG CLIENT_TAG("sdl.webview")
 
class SchemeHandler : public QWebEngineUrlSchemeHandler
{
  public:
  explicit SchemeHandler(QObject* parent = nullptr) : QWebEngineUrlSchemeHandler(parent)
  {
  }
 
  void requestStarted(QWebEngineUrlRequestJob* request) override
  {
    QUrl url = request->requestUrl();
 
    int rc = -1;
    for (auto& param : url.query().split('&'))
    {
      QStringList pair = param.split('=');
 
      if (pair.size() != 2 || pair[0] != QLatin1String("code"))
        continue;
 
      auto qc = pair[1];
      m_code = qc.toStdString();
      rc = 0;
      break;
    }
    qApp->exit(rc);
  }
 
  [[nodiscard]] std::string code() const
  {
    return m_code;
  }
 
  private:
  std::string m_code{};
};
 
bool webview_impl_run(const std::string& title, const std::string& url, std::string& code)
{
  int argc = 1;
  const auto vendor = QLatin1String(FREERDP_VENDOR_STRING);
  const auto product = QLatin1String(FREERDP_PRODUCT_STRING);
  QWebEngineUrlScheme::registerScheme(QWebEngineUrlScheme("ms-appx-web"));
 
  std::string wtitle = title;
  char* argv[] = { wtitle.data() };
  QCoreApplication::setOrganizationName(vendor);
  QCoreApplication::setApplicationName(product);
  QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
  QApplication app(argc, argv);
 
  SchemeHandler handler;
  QWebEngineProfile::defaultProfile()->installUrlSchemeHandler("ms-appx-web", &handler);
 
  QWebEngineView webview;
  webview.load(QUrl(QString::fromStdString(url)));
  webview.show();
 
  if (app.exec() != 0)
    return false;
 
  auto val = handler.code();
  if (val.empty())
    return false;
  code = val;
 
  return !code.empty();
}