[mutter/wip/carlosg/device-capabilities: 1/5] clutter: Add compatibility code to get input capabilities from device type

[Carlos Garnacho <carlosg src gnome org>]

commit f0fa2b8a85a6922177607d69452b64346970e1db
Author: Carlos Garnacho <carlosg gnome org>
Date:   Tue Mar 8 17:12:42 2022 +0100

    clutter: Add compatibility code to get input capabilities from device type
    
    We not just have X11 devices, but also virtual devices on both backends.
    So far have those specify a ClutterInputDeviceType, but transform that into
    capabilities on device construction.

 clutter/clutter/clutter-input-device.c | 48 ++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
---
diff --git a/clutter/clutter/clutter-input-device.c b/clutter/clutter/clutter-input-device.c
index a7b39076d3..67e990a0c5 100644
--- a/clutter/clutter/clutter-input-device.c
+++ b/clutter/clutter/clutter-input-device.c
@@ -104,6 +104,53 @@ struct _ClutterInputDevicePrivate
 
 G_DEFINE_TYPE_WITH_PRIVATE (ClutterInputDevice, clutter_input_device, G_TYPE_OBJECT);
 
+static void
+clutter_input_device_constructed (GObject *gobject)
+{
+  ClutterInputDevice *device = CLUTTER_INPUT_DEVICE (gobject);
+  ClutterInputDevicePrivate *priv =
+    clutter_input_device_get_instance_private (device);
+
+  if (priv->capabilities == 0)
+    {
+      ClutterInputCapabilities capabilities = 0;
+
+      switch (priv->device_type)
+        {
+        case CLUTTER_POINTER_DEVICE:
+          capabilities = CLUTTER_INPUT_CAPABILITY_POINTER;
+          break;
+        case CLUTTER_KEYBOARD_DEVICE:
+          capabilities = CLUTTER_INPUT_CAPABILITY_KEYBOARD;
+          break;
+        case CLUTTER_TOUCHPAD_DEVICE:
+          capabilities = CLUTTER_INPUT_CAPABILITY_POINTER |
+            CLUTTER_INPUT_CAPABILITY_TOUCHPAD;
+          break;
+        case CLUTTER_TOUCHSCREEN_DEVICE:
+          capabilities = CLUTTER_INPUT_CAPABILITY_TOUCH;
+          break;
+        case CLUTTER_TABLET_DEVICE:
+        case CLUTTER_PEN_DEVICE:
+        case CLUTTER_ERASER_DEVICE:
+        case CLUTTER_CURSOR_DEVICE:
+          capabilities = CLUTTER_INPUT_CAPABILITY_TABLET_TOOL;
+          break;
+        case CLUTTER_PAD_DEVICE:
+          capabilities = CLUTTER_INPUT_CAPABILITY_TABLET_PAD;
+          break;
+        case CLUTTER_EXTENSION_DEVICE:
+        case CLUTTER_JOYSTICK_DEVICE:
+          break;
+        case CLUTTER_N_DEVICE_TYPES:
+          g_assert_not_reached ();
+          break;
+        }
+
+      priv->capabilities = capabilities;
+    }
+}
+
 static void
 clutter_input_device_dispose (GObject *gobject)
 {
@@ -437,6 +484,7 @@ clutter_input_device_class_init (ClutterInputDeviceClass *klass)
                          NULL,
                          CLUTTER_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
 
+  gobject_class->constructed = clutter_input_device_constructed;
   gobject_class->dispose = clutter_input_device_dispose;
   gobject_class->set_property = clutter_input_device_set_property;
   gobject_class->get_property = clutter_input_device_get_property;