Tobias J. Endres
710918a622
This commit refactors the wayland_poc executable to use Qt's QDBus module for interacting with xdg-desktop-portal. This approach bypasses the problematic direct inclusion of PipeWire session manager headers (e.g., session-manager.h) that were causing persistent compilation errors. The wayland_poc now focuses solely on requesting screen capture permission via D-Bus and retrieving the PipeWire node ID, without attempting to create or manage PipeWire streams directly. This change aims to provide a working foundation for the xdg-desktop-portal interaction, which can then be integrated with the core PipeWire stream capture logic (demonstrated by tutorial5.c).
76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
#include <QCoreApplication>
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#include <QDebug>
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#include <QDBusConnection>
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#include <QDBusMessage>
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#include <QDBusPendingCall>
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#include <QDBusPendingCallWatcher>
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#include <QVariantMap>
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// QDBus callback for xdg-desktop-portal response
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void handlePortalResponse(QDBusPendingCallWatcher *watcher) {
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QDBusPendingCall reply = *watcher;
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watcher->deleteLater();
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if (reply.isError()) {
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qCritical() << "D-Bus call to xdg-desktop-portal failed:" << reply.error().message();
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QCoreApplication::quit();
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return;
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}
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QList<QVariant> arguments = reply.reply().arguments();
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if (arguments.isEmpty()) {
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qCritical() << "xdg-desktop-portal response has no arguments.";
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QCoreApplication::quit();
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return;
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}
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QVariant firstArg = arguments.at(0);
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if (!firstArg.canConvert<QVariantMap>()) {
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qCritical() << "xdg-desktop-portal response first argument is not a map.";
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QCoreApplication::quit();
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return;
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}
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QVariantMap responseMap = firstArg.toMap();
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if (!responseMap.contains("pipewire_node_id")) {
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qCritical() << "xdg-desktop-portal response missing pipewire_node_id.";
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QCoreApplication::quit();
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return;
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}
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quint32 node_id = responseMap.value("pipewire_node_id").toUInt();
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qDebug() << "xdg-desktop-portal granted screen capture. PipeWire node ID:" << node_id;
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QCoreApplication::quit(); // Quit after getting the node ID for POC
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}
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int main(int argc, char *argv[]) {
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QCoreApplication app(argc, argv);
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qDebug() << "Requesting screen capture via xdg-desktop-portal...";
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QDBusConnection sessionBus = QDBusConnection::sessionBus();
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if (!sessionBus.isConnected()) {
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qCritical() << "Failed to connect to D-Bus session bus.";
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return -1;
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}
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QDBusMessage message = QDBusMessage::createMethodCall(
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"org.freedesktop.portal.Desktop",
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"/org/freedesktop/portal/desktop",
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"org.freedesktop.portal.ScreenCast",
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"SelectSources"
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);
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QVariantMap options;
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options.insert("multiple", false); // Request single source
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message << "" << options; // parent_window (empty), options
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QDBusPendingCall pendingCall = sessionBus.asyncCall(message); // Use asyncCall
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QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(pendingCall);
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QObject::connect(watcher, &QDBusPendingCallWatcher::finished, handlePortalResponse);
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return app.exec();
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} |