diff options
| -rw-r--r-- | clutter/clutter/evdev/clutter-virtual-input-device-evdev.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/clutter/clutter/evdev/clutter-virtual-input-device-evdev.c b/clutter/clutter/evdev/clutter-virtual-input-device-evdev.c index 5ce84d1e2..3d8c204e7 100644 --- a/clutter/clutter/evdev/clutter-virtual-input-device-evdev.c +++ b/clutter/clutter/evdev/clutter-virtual-input-device-evdev.c @@ -245,6 +245,143 @@ clutter_virtual_input_device_evdev_notify_key (ClutterVirtualInputDevice *virtua TRUE); } +static gboolean +pick_keycode_for_keyval_in_current_group (ClutterVirtualInputDevice *virtual_device, + guint keyval, + guint *keycode_out, + guint *level_out) +{ + ClutterVirtualInputDeviceEvdev *virtual_evdev = + CLUTTER_VIRTUAL_INPUT_DEVICE_EVDEV (virtual_device); + ClutterDeviceManager *manager; + struct xkb_keymap *xkb_keymap; + struct xkb_state *state; + guint keycode, layout; + xkb_keycode_t min_keycode, max_keycode; + + manager = clutter_virtual_input_device_get_manager (virtual_device); + xkb_keymap = _clutter_device_manager_evdev_get_keymap (CLUTTER_DEVICE_MANAGER_EVDEV (manager)); + state = virtual_evdev->seat->xkb; + + layout = xkb_state_serialize_layout (state, XKB_STATE_LAYOUT_EFFECTIVE); + min_keycode = xkb_keymap_min_keycode (xkb_keymap); + max_keycode = xkb_keymap_max_keycode (xkb_keymap); + for (keycode = min_keycode; keycode < max_keycode; keycode++) + { + gint num_levels, level; + num_levels = xkb_keymap_num_levels_for_key (xkb_keymap, keycode, layout); + for (level = 0; level < num_levels; level++) + { + const xkb_keysym_t *syms; + gint num_syms, sym; + num_syms = xkb_keymap_key_get_syms_by_level (xkb_keymap, keycode, layout, level, &syms); + for (sym = 0; sym < num_syms; sym++) + { + if (syms[sym] == keyval) + { + *keycode_out = keycode; + if (level_out) + *level_out = level; + return TRUE; + } + } + } + } + + return FALSE; +} + +static void +apply_level_modifiers (ClutterVirtualInputDevice *virtual_device, + uint64_t time_us, + uint32_t level, + uint32_t key_state) +{ + ClutterVirtualInputDeviceEvdev *virtual_evdev = + CLUTTER_VIRTUAL_INPUT_DEVICE_EVDEV (virtual_device); + guint keysym, keycode, evcode; + + if (level == 0) + return; + + if (level == 1) + { + keysym = XKB_KEY_Shift_L; + } + else if (level == 2) + { + keysym = XKB_KEY_ISO_Level3_Shift; + } + else + { + g_warning ("Unhandled level: %d\n", level); + return; + } + + if (!pick_keycode_for_keyval_in_current_group (virtual_device, keysym, + &keycode, NULL)) + return; + + clutter_input_device_keycode_to_evdev (virtual_evdev->device, + keycode, &evcode); + clutter_seat_evdev_notify_key (virtual_evdev->seat, + virtual_evdev->device, + time_us, + evcode, + key_state, + TRUE); +} + +static void +clutter_virtual_input_device_evdev_notify_keyval (ClutterVirtualInputDevice *virtual_device, + uint64_t time_us, + uint32_t keyval, + ClutterKeyState key_state) +{ + ClutterVirtualInputDeviceEvdev *virtual_evdev = + CLUTTER_VIRTUAL_INPUT_DEVICE_EVDEV (virtual_device); + int key_count; + guint keycode = 0, level = 0, evcode = 0; + + if (!pick_keycode_for_keyval_in_current_group (virtual_device, + keyval, &keycode, &level)) + { + g_warning ("No keycode found for keyval %x in current group", keyval); + return; + } + + clutter_input_device_keycode_to_evdev (virtual_evdev->device, + keycode, &evcode); + + if (get_button_type (evcode) != EVDEV_BUTTON_TYPE_KEY) + { + g_warning ("Unknown/invalid virtual device key 0x%x pressed\n", evcode); + return; + } + + key_count = update_button_count (virtual_evdev, evcode, key_state); + if (key_count < 0 || key_count > 1) + { + g_warning ("Received multiple virtual 0x%x key %s (ignoring)", keycode, + key_state == CLUTTER_KEY_STATE_PRESSED ? "presses" : "releases"); + update_button_count (virtual_evdev, evcode, 1 - key_state); + return; + } + + if (key_state) + apply_level_modifiers (virtual_device, time_us, level, key_state); + + clutter_seat_evdev_notify_key (virtual_evdev->seat, + virtual_evdev->device, + time_us, + evcode, + key_state, + TRUE); + + if (!key_state) + apply_level_modifiers (virtual_device, time_us, level, key_state); +} + static void clutter_virtual_input_device_evdev_get_property (GObject *object, guint prop_id, @@ -347,6 +484,7 @@ clutter_virtual_input_device_evdev_class_init (ClutterVirtualInputDeviceEvdevCla virtual_input_device_class->notify_absolute_motion = clutter_virtual_input_device_evdev_notify_absolute_motion; virtual_input_device_class->notify_button = clutter_virtual_input_device_evdev_notify_button; virtual_input_device_class->notify_key = clutter_virtual_input_device_evdev_notify_key; + virtual_input_device_class->notify_keyval = clutter_virtual_input_device_evdev_notify_keyval; obj_props[PROP_SEAT] = g_param_spec_pointer ("seat", P_("ClutterSeatEvdev"), |