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/*
* Copyright (C) 2002-2006 Sergey V. Udaltsov <svu@gnome.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <time.h>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysym.h>
#include "xklavier_private.h"
#include "xklavier_private_xmm.h"
static gint
xkl_xmm_process_keypress_event(XklEngine * engine, XKeyPressedEvent * kpe)
{
if (xkl_engine_is_listening_for(engine, XKLL_MANAGE_LAYOUTS)) {
gint current_shortcut = 0;
const XmmSwitchOption *sop;
xkl_debug(200, "Processing the KeyPress event\n");
sop = xkl_xmm_find_switch_option(engine, kpe->keycode,
kpe->state,
¤t_shortcut);
if (sop != NULL) {
XklState state;
xkl_debug(150, "It is THE shortcut\n");
xkl_xmm_get_server_state(engine, &state);
if (state.group != -1) {
gint new_group =
(state.group +
sop->shortcut_steps[current_shortcut])
%
g_strv_length(xkl_engine_backend
(engine, XklXmm,
current_config).layouts);
xkl_debug(150,
"Setting new xmm group %d\n",
new_group);
xkl_xmm_lock_group(engine, new_group);
return 1;
}
}
}
return 0;
}
static gint
xkl_xmm_process_property_event(XklEngine * engine, XPropertyEvent * kpe)
{
Atom state_atom = xkl_engine_backend(engine, XklXmm, state_atom);
xkl_debug(200, "Processing the PropertyNotify event: %d/%d\n",
kpe->atom, state_atom);
/*
* Group is changed!
*/
if (kpe->atom == state_atom) {
XklState state;
xkl_xmm_get_server_state(engine, &state);
if (xkl_engine_is_listening_for
(engine, XKLL_MANAGE_LAYOUTS)) {
xkl_debug(150,
"Current group from the root window property %d\n",
state.group);
xkl_xmm_shortcuts_ungrab(engine);
xkl_xmm_actualize_group(engine, state.group);
xkl_xmm_shortcuts_grab(engine);
return 1;
}
if (xkl_engine_is_listening_for
(engine,
XKLL_MANAGE_WINDOW_STATES) |
xkl_engine_is_listening_for(engine,
XKLL_TRACK_KEYBOARD_STATE))
{
xkl_debug(150,
"XMM state changed, new 'group' %d\n",
state.group);
xkl_engine_process_state_modification(engine,
GROUP_CHANGED,
state.group,
0, False);
}
} else
/*
* Configuration is changed!
*/
if (kpe->atom == xkl_engine_priv(engine, base_config_atom)) {
xkl_engine_reset_all_info(engine, TRUE,
"base config atom changed");
}
return 0;
}
/*
* XMM event handler
*/
gint
xkl_xmm_process_x_event(XklEngine * engine, XEvent * xev)
{
switch (xev->type) {
case KeyPress:
return xkl_xmm_process_keypress_event(engine,
(XKeyPressedEvent *)
xev);
case PropertyNotify:
return xkl_xmm_process_property_event(engine,
(XPropertyEvent *)
xev);
}
return 0;
}
/*
* We have to find which of Shift/Lock/Control/ModX masks
* belong to Caps/Num/Scroll lock
*/
static void
xkl_xmm_init_xmm_indicators_map(XklEngine * engine,
guint * p_caps_lock_mask,
guint * p_num_lock_mask,
guint * p_scroll_lock_mask)
{
XModifierKeymap *xmkm = NULL;
KeyCode *kcmap, nlkc, clkc, slkc;
int m, k, mask;
Display *display = xkl_engine_get_display(engine);
xmkm = XGetModifierMapping(display);
if (xmkm) {
clkc = XKeysymToKeycode(display, XK_Num_Lock);
nlkc = XKeysymToKeycode(display, XK_Caps_Lock);
slkc = XKeysymToKeycode(display, XK_Scroll_Lock);
kcmap = xmkm->modifiermap;
mask = 1;
for (m = 8; --m >= 0; mask <<= 1)
for (k = xmkm->max_keypermod; --k >= 0; kcmap++) {
if (*kcmap == clkc)
*p_caps_lock_mask = mask;
if (*kcmap == slkc)
*p_scroll_lock_mask = mask;
if (*kcmap == nlkc)
*p_num_lock_mask = mask;
}
XFreeModifiermap(xmkm);
}
}
void
xkl_xmm_grab_ignoring_indicators(XklEngine * engine, gint keycode,
guint modifiers)
{
guint caps_lock_mask = 0, num_lock_mask = 0, scroll_lock_mask = 0;
xkl_xmm_init_xmm_indicators_map(engine, &caps_lock_mask,
&num_lock_mask, &scroll_lock_mask);
#define GRAB(mods) \
xkl_engine_grab_key(engine, keycode, modifiers|(mods))
GRAB(0);
GRAB(caps_lock_mask);
GRAB(num_lock_mask);
GRAB(scroll_lock_mask);
GRAB(caps_lock_mask | num_lock_mask);
GRAB(caps_lock_mask | scroll_lock_mask);
GRAB(num_lock_mask | scroll_lock_mask);
GRAB(caps_lock_mask | num_lock_mask | scroll_lock_mask);
#undef GRAB
}
void
xkl_xmm_ungrab_ignoring_indicators(XklEngine * engine, gint keycode,
guint modifiers)
{
guint caps_lock_mask = 0, num_lock_mask = 0, scroll_lock_mask = 0;
xkl_xmm_init_xmm_indicators_map(engine, &caps_lock_mask,
&num_lock_mask, &scroll_lock_mask);
#define UNGRAB(mods) \
xkl_engine_ungrab_key(engine, keycode, modifiers|(mods))
UNGRAB(0);
UNGRAB(caps_lock_mask);
UNGRAB(num_lock_mask);
UNGRAB(scroll_lock_mask);
UNGRAB(caps_lock_mask | num_lock_mask);
UNGRAB(caps_lock_mask | scroll_lock_mask);
UNGRAB(num_lock_mask | scroll_lock_mask);
UNGRAB(caps_lock_mask | num_lock_mask | scroll_lock_mask);
#undef UNGRAB
}
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