From 59d61e258c59dc695783e0b9adc419de2b174e75 Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Thu, 11 Oct 2018 14:57:46 +0200
Subject: Initial commit

---
 src/main.cpp | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 src/main.cpp

(limited to 'src/main.cpp')

diff --git a/src/main.cpp b/src/main.cpp
new file mode 100644
index 0000000..2f59a14
--- /dev/null
+++ b/src/main.cpp
@@ -0,0 +1,72 @@
+#include "saverwidget.h"
+
+#include <QApplication>
+#include <QMessageBox>
+#include <QWindow>
+#include <QLabel>
+#include <QDebug>
+#include <QX11Info>
+
+#include <sys/types.h>
+#include <unistd.h>
+#include <sys/wait.h>
+
+//#include <X11/Xlib.h>
+#include "vroot.h"
+
+static pid_t childId;
+
+static void __attribute((noreturn)) sh(int)
+{
+    // Clean up if xscreensaver kills us (relay to forked child)
+    kill(childId, SIGTERM);
+    exit(0);
+}
+
+int main(int argc, char **argv)
+{
+    // Fork once and wait for child so SIGSTOP won't affect us and the counter keeps going
+    // while the auth dialog is up
+    childId = fork();
+    if (childId != 0) {
+        signal(SIGTERM, sh);
+        signal(SIGINT, sh);
+        int status;
+        for (;;) {
+            pid_t ret = waitpid(childId, &status, 0);
+            if (ret == childId)
+                return 0;
+            if (errno == EINTR)
+                continue;
+            fprintf(stderr, "errno=%d, bye\n", errno);
+            return 1;
+        }
+    }
+    for (int i = 0; i < argc; ++i) {
+        qDebug() << "Argument" << i << "=" << argv[i];
+    }
+    QApplication app(argc, argv);
+    Display *dpy = QX11Info::display();
+    if (dpy == nullptr) {
+        fprintf(stderr, "No display");
+        return 1;
+    }
+    Window win = DefaultRootWindow(dpy);
+    QWindow *xwin = QWindow::fromWinId(win);
+    qDebug() << "Foreign window id is" << win << "pointer is" << xwin;
+    //QWindow *qwin = new QWindow(xwin);
+    //QWidget *w = QWidget::createWindowContainer(qwin);
+    SaverWidget *w = new SaverWidget(win);
+    w->winId();
+    qDebug() << "New Qt window is" << w << "window handle is" << w->windowHandle();
+    w->windowHandle()->setParent(xwin);
+    XWindowAttributes attr;
+    // Because QWindow is broken and doesn't report any geometry for foreign windows
+    if (XGetWindowAttributes(dpy, win, &attr)) {
+        qDebug() << "Query:" << attr.width << attr.height;
+        w->setGeometry(0, 0, attr.width, attr.height);
+    }
+    w->show();
+	app.exec();
+	return 0;
+}
-- 
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