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Add an input device function to convert keycodes to evdev codes

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This adds a virtual function to ClutterInputDevice to translate a
keycode from the hardware_keycode member of ClutterKeyEvent to an
evdev keycode. The function can fail so that input backends that don't
have a sensible way to translate to evdev keycodes can return FALSE.
There are implementations for evdev, wayland and X. The X
implementation assumes that the X server is using an evdev driver in
which case the hardware keycodes are the evdev codes plus 8.

Reviewed-by: Emmanuele Bassi <ebassi@linux.intel.com>
This commit is contained in:
Neil Roberts
2012-01-17 15:40:08 +00:00
parent a3bbcff946
commit 13e3f9e5f1
8 changed files with 93 additions and 0 deletions
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15
clutter/x11/clutter-input-device-core-x11.c
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@ -200,6 +200,20 @@ clutter_input_device_x11_constructed (GObject *gobject)
G_OBJECT_CLASS (clutter_input_device_x11_parent_class)->constructed (gobject);
}
static gboolean
clutter_input_device_x11_keycode_to_evdev (ClutterInputDevice *device,
guint hardware_keycode,
guint *evdev_keycode)
{
/* When using evdev under X11 the hardware keycodes are the evdev
keycodes plus 8. I haven't been able to find any documentation to
know what the +8 is for. FIXME: This should probably verify that
X server is using evdev. */
*evdev_keycode = hardware_keycode - 8;
return TRUE;
}
static void
clutter_input_device_x11_class_init (ClutterInputDeviceX11Class *klass)
{
@ -210,6 +224,7 @@ clutter_input_device_x11_class_init (ClutterInputDeviceX11Class *klass)
gobject_class->dispose = clutter_input_device_x11_dispose;
device_class->select_stage_events = clutter_input_device_x11_select_stage_events;
device_class->keycode_to_evdev = clutter_input_device_x11_keycode_to_evdev;
}
static void