From: Enrico Zini <enrico@enricozini.org>
Date: Tue, 11 Aug 2009 21:31:55 +0000 (+0100)
Subject: First attempt at implementing screen lock
X-Git-Url: https://git.toastfreeware.priv.at/gregoa/zavai.git/commitdiff_plain/207edc0c8ef014179609aec2ac10fa1e772f59e9

First attempt at implementing screen lock
---

diff --git a/src/app_powerbutton.vala b/src/app_powerbutton.vala
index 62f29e6..175e67f 100644
--- a/src/app_powerbutton.vala
+++ b/src/app_powerbutton.vala
@@ -136,12 +136,53 @@ public class CommandButton : Gtk.Button
 	}
 }
 
-private void on_power_button(Posix.timeval* time, bool pressed)
+private bool screen_locked = false;
+
+private void set_screen_lock(bool locked)
 {
-		if (!pressed)
+		int fd = Posix.open("/dev/input/event1", Posix.O_RDWR | Posix.O_NONBLOCK);
+		if (fd < 0)
 		{
-			zavai.app.push_applet("menu.power");
+			zavai.log.error("Cannot open /dev/input/event1");
+			return;
 		}
+
+		int EVIOCGRAB = 0x40044590;
+		if (Posix.ioctl(fd, EVIOCGRAB, locked ? 1 : 0) != 0)
+		{
+			zavai.log.error("Cannot EVIOCGRAB /dev/input/event1");
+			Posix.close(fd);
+			return;
+		}
+		screen_locked = locked;
+		Posix.close(fd);
+}
+
+public class ScreenLockButton : Gtk.Button
+{
+	public ScreenLockButton(string name)
+	{
+		label = name;
+		clicked += on_clicked;
+		set_size_request(0, zavai.config.min_button_height);
+	}
+
+	public void on_clicked()
+	{
+		zavai.log.info("Locking screen");
+		set_screen_lock(true);
+	}
+}
+
+private void on_power_button(Posix.timeval* time, bool pressed)
+{
+	if (!pressed)
+	{
+		if (screen_locked)
+			set_screen_lock(false);
+		else
+			zavai.app.push_applet("menu.power");
+	}
 }
 
 /*
@@ -157,6 +198,7 @@ public void init()
 
     // Menus
     var menu_power = new zavai.Menu("Power menu");
+	menu_power.add_widget(new ScreenLockButton("Lock screen"));
 	menu_power.add_widget(new CommandButton("Suspend", "apm -s"));
 	menu_power.add_widget(new CommandButton("Shutdown", "shutdown -h now"));
 	menu_power.add_widget(new CommandButton("Reboot", "shutdown -r now"));