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8b03d9ecc3
The end goal is to have all clutter backend code in src/backends. Input is the larger chunk of it, which is now part of our specific MutterClutterBackendNative, this extends to device manager, input devices, tools and keymap. This was supposed to be nice and incremental, but there's no sane way to cut this through. As a result of the refactor, a number of private Clutter functions are now exported for external backends to be possible. https://gitlab.gnome.org/GNOME/mutter/merge_requests/672
112 lines
3.6 KiB
C
112 lines
3.6 KiB
C
/*
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* Copyright (C) 2010 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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* Authors:
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* Kristian Høgsberg
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* Damien Lespiau <damien.lespiau@intel.com>
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*/
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#include "config.h"
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#include "backends/native/meta-xkb-utils.h"
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#include "clutter/clutter-keysyms.h"
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#include "clutter/clutter-mutter.h"
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/*
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* _clutter_event_new_from_evdev: Create a new Clutter ClutterKeyEvent
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* @device: a ClutterInputDevice
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* @stage: the stage the event should be delivered to
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* @xkb: XKB rules to translate the event
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* @_time: timestamp of the event
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* @key: a key code coming from a Linux input device
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* @state: TRUE if a press event, FALSE if a release event
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* @modifer_state: in/out
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*
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* Translate @key to a #ClutterKeyEvent using rules from xbbcommon.
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*
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* Return value: the new #ClutterEvent
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*/
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ClutterEvent *
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meta_key_event_new_from_evdev (ClutterInputDevice *device,
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ClutterInputDevice *core_device,
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ClutterStage *stage,
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struct xkb_state *xkb_state,
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uint32_t button_state,
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uint32_t _time,
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xkb_keycode_t key,
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uint32_t state)
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{
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ClutterEvent *event;
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xkb_keysym_t sym;
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const xkb_keysym_t *syms;
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char buffer[8];
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int n;
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if (state)
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event = clutter_event_new (CLUTTER_KEY_PRESS);
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else
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event = clutter_event_new (CLUTTER_KEY_RELEASE);
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/* We use a fixed offset of 8 because evdev starts KEY_* numbering from
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* 0, whereas X11's minimum keycode, for really stupid reasons, is 8.
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* So the evdev XKB rules are based on the keycodes all being shifted
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* upwards by 8. */
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key += 8;
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n = xkb_key_get_syms (xkb_state, key, &syms);
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if (n == 1)
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sym = syms[0];
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else
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sym = XKB_KEY_NoSymbol;
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event->key.stage = stage;
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event->key.time = _time;
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meta_xkb_translate_state (event, xkb_state, button_state);
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event->key.hardware_keycode = key;
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event->key.keyval = sym;
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clutter_event_set_device (event, core_device);
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clutter_event_set_source_device (event, device);
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n = xkb_keysym_to_utf8 (sym, buffer, sizeof (buffer));
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if (n == 0)
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{
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/* not printable */
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event->key.unicode_value = (gunichar) '\0';
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}
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else
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{
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event->key.unicode_value = g_utf8_get_char_validated (buffer, n);
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if (event->key.unicode_value == -1 || event->key.unicode_value == -2)
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event->key.unicode_value = (gunichar) '\0';
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}
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return event;
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}
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void
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meta_xkb_translate_state (ClutterEvent *event,
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struct xkb_state *state,
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uint32_t button_state)
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{
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_clutter_event_set_state_full (event,
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button_state,
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xkb_state_serialize_mods (state, XKB_STATE_MODS_DEPRESSED),
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xkb_state_serialize_mods (state, XKB_STATE_MODS_LATCHED),
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xkb_state_serialize_mods (state, XKB_STATE_MODS_LOCKED),
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xkb_state_serialize_mods (state, XKB_STATE_MODS_EFFECTIVE) | button_state);
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}
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