Implement parent setting for portal and gtk dialogs on Wayland via xdg-foreign-v2

Telegram/SourceFiles/platform/linux/linux_xdp_file_dialog.cpp

@@ -10,6 +10,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "platform/platform_file_utilities.h"
 #include "base/platform/base_platform_info.h"
 #include "base/platform/linux/base_linux_glibmm_helper.h"
+#include "platform/linux/linux_wayland_integration.h"
 #include "storage/localstorage.h"
 #include "base/openssl_help.h"
 #include "base/qt_adapters.h"
@@ -20,6 +21,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include <glibmm.h>
 #include <giomm.h>
 
+using Platform::internal::WaylandIntegration;
+
 namespace Platform {
 namespace FileDialog {
 namespace XDP {
@@ -207,7 +210,7 @@ private:
 	uint _requestSignalId = 0;
 
 	// Options
-	WId _winId = 0;
+	QWindow *_parent = nullptr;
 	QFileDialog::Options _options;
 	QFileDialog::AcceptMode _acceptMode = QFileDialog::AcceptOpen;
 	QFileDialog::FileMode _fileMode = QFileDialog::ExistingFile;
@@ -266,8 +269,13 @@ XDPFileDialog::~XDPFileDialog() {
 void XDPFileDialog::openPortal() {
 	std::stringstream parentWindowId;
 
-	if (IsX11()) {
-		parentWindowId << "x11:" << std::hex << _winId;
+	if (const auto integration = WaylandIntegration::Instance()) {
+		if (const auto handle = integration->nativeHandle(_parent)
+			; !handle.isEmpty()) {
+			parentWindowId << "wayland:" << handle.toStdString();
+		}
+	} else if (IsX11() && _parent) {
+		parentWindowId << "x11:" << std::hex << _parent->winId();
 	}
 
 	std::map<Glib::ustring, Glib::VariantBase> options;
@@ -408,7 +416,7 @@ void XDPFileDialog::openPortal() {
 			+ uniqueName
 			+ '/'
 			+ handleToken;
-		
+
 		const auto responseCallback = crl::guard(this, [=](
 			const Glib::RefPtr<Gio::DBus::Connection> &connection,
 			const Glib::ustring &sender_name,
@@ -629,7 +637,7 @@ void XDPFileDialog::showHelper(
 		Qt::WindowModality windowModality,
 		QWindow *parent) {
 	_modal = windowModality != Qt::NonModal;
-	_winId = parent ? parent->winId() : 0;
+	_parent = parent;
 
 	openPortal();
 }