Added a GameControllerWakelock plugin that temporarily suspends the s…

…creensaver if a joystick or gamepad is connected via bluetooth

Necessary changes for upstream compatibility

Added cschramm's proposed change for compatibility with BlueZ5

Fixed device class check

Using the root X-window's ID instead of a fake GTK window now
Added error handling and reporting

Fixed a regression in the class retrieval line

Use gtk to obtain root window id
Adopted infirit's proposed changes with a minor fix

Fixed support for multiple devices

blueman/plugins/applet/GameControllerWakelock.py

@@ -0,0 +1,63 @@
+import blueman.bluez as bluez
+from blueman.Functions import *
+from blueman.main.SignalTracker import SignalTracker
+from blueman.main.Device import Device
+from blueman.plugins.AppletPlugin import AppletPlugin
+from gi.repository import Gdk, GdkX11
+import subprocess
+
+class GameControllerWakelock(AppletPlugin):
+    __description__ = _("Temporarily suspends the screensaver when a bluetooth game controller is connected.")
+    __author__ = "bwRavencl"
+    __icon__ = "input-gaming"
+
+    def on_load(self, applet):
+        self.wake_lock = 0
+        self.root_window_id = "0x%x" % Gdk.Screen.get_default().get_root_window().get_xid()
+
+        self.signals = SignalTracker()
+        self.signals.Handle("bluez", bluez.Device(), self.on_device_property_changed, "PropertyChanged", path_keyword="path")
+
+    def on_unload(self):
+        if self.wake_lock:
+            self.wake_lock = 1
+            self.suspend_screensaver("resume")
+        self.signals.DisconnectAll()
+
+    def on_device_property_changed(self, key, value, path):
+        if key == "Connected":
+            klass = Device(path).get_properties()["Class"] & 0x1fff
+
+            if klass == 0x504 or klass == 0x508:
+                if value:
+                    self.xdg_screensaver("suspend")
+                else:
+                    self.xdg_screensaver("resume")
+
+    def xdg_screensaver(self, action):
+        if action == "resume":
+            if self.wake_lock == 0:
+                pass
+            elif self.wake_lock > 1:
+                self.wake_lock -= 1
+                pass
+        elif action == "suspend" and self.wake_lock >= 1:
+             self.wake_lock += 1
+             pass
+
+        command = ["xdg-screensaver", action, self.root_window_id]
+
+        try:
+            process = subprocess.Popen(command, stderr=subprocess.PIPE)
+            _, stderr = process.communicate()
+
+            if process.returncode != 0:
+                dprint(" ".join(command) + " failed with: " + stderr)
+                pass
+
+            if action == "suspend":
+                self.wake_lock += 1
+            elif action == "resume":
+                self.wake_lock = 0
+        except:
+            dprint(traceback.format_exc())

blueman/plugins/applet/Makefile.am

@@ -1,6 +1,6 @@
 bluemandir = $(pythondir)/blueman/plugins/applet
 
-blueman_PYTHON = AppIndicator.py ExitItem.py ShowConnected.py AuthAgent.py DhcpClient.py NMPANSupport.py DBusService.py DiscvManager.py NetUsage.py Headset.py __init__.py KillSwitch.py Menu.py Networking.py PowerManager.py PPPSupport.py NMDUNSupport.py RecentConns.py SerialManager.py StandardItems.py StatusIcon.py TransferService.py
+blueman_PYTHON = AppIndicator.py ExitItem.py ShowConnected.py AuthAgent.py DhcpClient.py NMPANSupport.py DBusService.py DiscvManager.py NetUsage.py Headset.py __init__.py KillSwitch.py Menu.py Networking.py PowerManager.py PPPSupport.py NMDUNSupport.py RecentConns.py SerialManager.py StandardItems.py StatusIcon.py TransferService.py GameControllerWakelock.py
 
 CLEANFILES =		\
 	$(BUILT_SOURCES)