implement resolution active set (#249)

Fixes #80

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>

tools/ratbagctl.in

@@ -429,6 +429,12 @@ def func_resolution_active_get(r, args):
     print(r.index)
 
 
+def func_resolution_active_set(r, args):
+    r, p, d = find_resolution(r, args)
+    r.set_active()
+    d.commit()
+
+
 def func_resolution_default_get(r, args):
     p, d = find_profile(r, args)
     for r in p.resolutions:
@@ -707,7 +713,7 @@ parser_def = [
                                 arg_type: int,
                             },
                         ],
-                        func: func_dummy,  # FIXME: func_active_resolution_set,
+                        func: func_resolution_active_set,
                     },
                 ],
             },

tools/ratbagctl.test.in

@@ -213,13 +213,14 @@ class TestRatbgagCtlResolution(TestRatbagCtl):
         self.launch_fail_test(command + " 10 test_device")
         self.launch_fail_test(command + " test_device x")
 
-    @unittest.skip("Resolution active set not implemented")
     def test_resolution_active_set(self):
         command = "Resolution active set"
-        r = self.launch_good_test(command + " 2 test_device")
-        self.assertNotEqual(r, '')
         r = self.launch_good_test("Resolution active get test_device")
         self.assertEqual(int(r), 2)
+        r = self.launch_good_test(command + " 0 test_device")
+        self.assertEqual(r, '')
+        r = self.launch_good_test("Resolution active get test_device")
+        self.assertEqual(int(r), 0)
         self.launch_fail_test(command)
         self.launch_fail_test(command + " X test_device")
         self.launch_fail_test(command + " 1 test_device X")

tools/ratbagd.py

@@ -426,6 +426,10 @@ class RatbagdResolution(_RatbagdDBus):
         """Set this resolution to be the default."""
         return self._dbus_call("SetDefault", "")
 
+    def set_active(self):
+        """Set this resolution to be the active one."""
+        return self._dbus_call("SetActive", "")
+
 
 class RatbagdButton(_RatbagdDBus):
     """Represents a ratbagd button."""