From f98b1f635b65d1a504ac116c821a14a2accfc842 Mon Sep 17 00:00:00 2001
From: Andreas Kling <awesomekling@gmail.com>
Date: Tue, 16 Jul 2019 21:25:50 +0200
Subject: [PATCH] SystemDialog: Add a new app for showing system dialogs.

Currently this will be used by the WindowServer to show some dialogs.
This is needed since WindowServer can't use LibGUI and reimplementing
message box functionality inside WindowServer would be silly. :^)

The only dialog supported in this initial version is --shutdown
---
 Applications/SystemDialog/Makefile |  8 +++++
 Applications/SystemDialog/main.cpp | 49 ++++++++++++++++++++++++++++++
 Kernel/build-root-filesystem.sh    |  2 ++
 Kernel/makeall.sh                  |  1 +
 4 files changed, 60 insertions(+)
 create mode 100755 Applications/SystemDialog/Makefile
 create mode 100644 Applications/SystemDialog/main.cpp

diff --git a/Applications/SystemDialog/Makefile b/Applications/SystemDialog/Makefile
new file mode 100755
index 0000000000..1bd260a73f
--- /dev/null
+++ b/Applications/SystemDialog/Makefile
@@ -0,0 +1,8 @@
+include ../../Makefile.common
+
+OBJS = \
+    main.o
+
+APP = SystemDialog
+
+include ../Makefile.common
diff --git a/Applications/SystemDialog/main.cpp b/Applications/SystemDialog/main.cpp
new file mode 100644
index 0000000000..f5adbb09c0
--- /dev/null
+++ b/Applications/SystemDialog/main.cpp
@@ -0,0 +1,49 @@
+#include <LibGUI/GApplication.h>
+#include <LibGUI/GBoxLayout.h>
+#include <LibGUI/GButton.h>
+#include <LibGUI/GDesktop.h>
+#include <LibGUI/GLabel.h>
+#include <LibGUI/GMessageBox.h>
+#include <LibGUI/GWindow.h>
+#include <stdio.h>
+#include <sys/utsname.h>
+
+static int run_shutdown_dialog(int argc, char** argv);
+
+int main(int argc, char** argv)
+{
+    if (argc != 2) {
+        printf("usage: SystemDialog <type>\n");
+        return 0;
+    }
+
+    if (String(argv[1]) == "--shutdown")
+        return run_shutdown_dialog(argc, argv);
+
+    fprintf(stderr, "Unknown argument: %s\n", argv[1]);
+    return 1;
+}
+
+int run_shutdown_dialog(int argc, char** argv)
+{
+    GApplication app(argc, argv);
+
+    {
+        GMessageBox box("Shut down Serenity?", "Confirm Shutdown", GMessageBox::Type::Warning, GMessageBox::InputType::OkCancel);
+        auto result = box.exec();
+
+        if (result == GMessageBox::ExecOK) {
+            dbg() << "OK";
+            int rc = execl("/bin/shutdown", "/bin/shutdown", "-n", nullptr);
+            if (rc < 0) {
+                perror("execl");
+                return 1;
+            }
+        } else {
+            dbg() << "Cancel";
+            return 0;
+        }
+    }
+
+    return app.exec();
+}
diff --git a/Kernel/build-root-filesystem.sh b/Kernel/build-root-filesystem.sh
index b702d8b2ff..c8c0cd7dec 100755
--- a/Kernel/build-root-filesystem.sh
+++ b/Kernel/build-root-filesystem.sh
@@ -78,6 +78,7 @@ cp ../Applications/TextEditor/TextEditor mnt/bin/TextEditor
 cp ../Applications/PaintBrush/PaintBrush mnt/bin/PaintBrush
 cp ../Applications/QuickShow/QuickShow mnt/bin/QuickShow
 cp ../Applications/Piano/Piano mnt/bin/Piano
+cp ../Applications/SystemDialog/SystemDialog mnt/bin/SystemDialog
 cp ../Demos/HelloWorld/HelloWorld mnt/bin/HelloWorld
 cp ../Demos/HelloWorld2/HelloWorld2 mnt/bin/HelloWorld2
 cp ../Demos/RetroFetch/RetroFetch mnt/bin/RetroFetch
@@ -110,6 +111,7 @@ ln -s TextEditor mnt/bin/te
 ln -s PaintBrush mnt/bin/pb
 ln -s QuickShow mnt/bin/qs
 ln -s Piano mnt/bin/pi
+ln -s SystemDialog mnt/bin/sd
 echo "done"
 
 # Run local sync script, if it exists
diff --git a/Kernel/makeall.sh b/Kernel/makeall.sh
index b99e19e762..26be17f250 100755
--- a/Kernel/makeall.sh
+++ b/Kernel/makeall.sh
@@ -39,6 +39,7 @@ build_targets="$build_targets ../Applications/Downloader"
 build_targets="$build_targets ../Applications/PaintBrush"
 build_targets="$build_targets ../Applications/QuickShow"
 build_targets="$build_targets ../Applications/Piano"
+build_targets="$build_targets ../Applications/SystemDialog"
 build_targets="$build_targets ../DevTools/VisualBuilder"
 build_targets="$build_targets ../Games/Minesweeper"
 build_targets="$build_targets ../Games/Snake"