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/* $Xorg: imDefFlt.c,v 1.4 2000/08/17 19:45:11 cpqbld Exp $ */
/******************************************************************
Copyright 1992, 1993, 1994 by FUJITSU LIMITED
Permission to use, copy, modify, distribute, and sell this software
and its documentation for any purpose is hereby granted without fee,
provided that the above copyright notice appear in all copies and
that both that copyright notice and this permission notice appear
in supporting documentation, and that the name of FUJITSU LIMITED
not be used in advertising or publicity pertaining to distribution
of the software without specific, written prior permission.
FUJITSU LIMITED makes no representations about the suitability of
this software for any purpose.
It is provided "as is" without express or implied warranty.
FUJITSU LIMITED DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
EVENT SHALL FUJITSU LIMITED BE LIABLE FOR ANY SPECIAL, INDIRECT OR
CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
Author: Takashi Fujiwara FUJITSU LIMITED
fujiwara@a80.tech.yk.fujitsu.co.jp
******************************************************************/
/* $XFree86: xc/lib/X11/imDefFlt.c,v 1.4 2001/01/17 19:41:51 dawes Exp $ */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <X11/Xatom.h>
#define NEED_EVENTS
#include "Xlibint.h"
#include "Xutil.h"
#include "Xlcint.h"
#include "Ximint.h"
Private long
_XimTriggerCheck(
Xim im,
XKeyEvent *ev,
INT32 len,
CARD32 *keylist)
{
register long i;
KeySym keysym;
CARD32 buf32[BUFSIZE/4];
char *buf = (char *)buf32;
int modifier;
int modifier_mask;
CARD32 min_len = sizeof(CARD32) /* sizeof keysym */
+ sizeof(CARD32) /* sizeof modifier */
+ sizeof(CARD32); /* sizeof modifier mask */
XLookupString(ev, buf, BUFSIZE, &keysym, NULL);
if (!keysym)
return -1;
for (i = 0; len >= min_len; i += 3, len -= min_len) {
modifier = keylist[i + 1];
modifier_mask = keylist[i + 2];
if (((KeySym)keylist[i] == keysym)
&& ((ev->state & modifier_mask) == modifier))
return i;
}
return -1;
}
Private long
_XimTriggerOnCheck(
Xim im,
XKeyEvent *ev)
{
return _XimTriggerCheck(im, ev, (INT32)im->private.proto.im_onkeylist[0],
&im->private.proto.im_onkeylist[1]);
}
Private long
_XimTriggerOffCheck(
Xim im,
XKeyEvent *ev)
{
return _XimTriggerCheck(im, ev, (INT32)im->private.proto.im_offkeylist[0],
&im->private.proto.im_offkeylist[1]);
}
Private Bool
_XimOnKeysCheck(
Xic ic,
XKeyEvent *ev)
{
Xim im = (Xim)ic->core.im;
long idx;
if (IS_DYNAMIC_EVENT_FLOW(ic->core.im) &&
im->private.proto.im_onkeylist &&
im->private.proto.im_onkeylist[0]) {
if ((idx = _XimTriggerOnCheck(im, ev)) >= 0) {
(void)_XimTriggerNotify(im, ic, 0, (CARD32)idx); /* Trigger on */
return True;
}
}
return False;
}
Private Bool
_XimOffKeysCheck(
Xic ic,
XKeyEvent *ev)
{
Xim im = (Xim)ic->core.im;
long idx;
if (IS_DYNAMIC_EVENT_FLOW(ic->core.im) &&
im->private.proto.im_offkeylist &&
im->private.proto.im_offkeylist[0]) {
if ((idx = _XimTriggerOffCheck(im, ev)) >= 0) {
_XimTriggerNotify(im, ic, 1, (CARD32)idx); /* Trigger off */
return True;
}
}
return False;
}
Private void
_XimPendingFilter(
Xic ic)
{
Xim im = (Xim)ic->core.im;
if (IS_NEED_SYNC_REPLY(ic)) {
(void)_XimProcSyncReply(im, ic);
UNMARK_NEED_SYNC_REPLY(ic);
}
return;
}
Private Bool
_XimProtoKeypressFilter(
Xic ic,
XKeyEvent *ev)
{
#ifdef XIM_CONNECTABLE
Xim im = (Xim)ic->core.im;
#endif
if (IS_FABLICATED(ic)) {
_XimPendingFilter(ic);
UNMARK_FABLICATED(ic);
return NOTFILTERD;
}
if (IS_NEGLECT_EVENT(ic, KeyPressMask))
return FILTERD;
#ifdef XIM_CONNECTABLE
if (!IS_IC_CONNECTED(ic)) {
if (IS_CONNECTABLE(im)) {
if (_XimConnectServer(im)) {
if (!_XimReCreateIC(ic)) {
_XimDelayModeSetAttr(im);
return NOTFILTERD;
}
} else {
return NOTFILTERD;
}
} else {
return NOTFILTERD;
}
}
#else
if (!IS_IC_CONNECTED(ic))
return NOTFILTERD;
#endif /* XIM_CONNECTABLE */
if (!IS_FORWARD_EVENT(ic, KeyPressMask)) {
if (_XimOnKeysCheck(ic, ev))
return FILTERD;
return NOTFILTERD;
}
if (_XimOffKeysCheck(ic, ev))
return FILTERD;
if (_XimForwardEvent(ic, (XEvent *)ev,
IS_SYNCHRONOUS_EVENT(ic, KeyPressMask)))
return FILTERD;
return NOTFILTERD;
}
Private Bool
_XimFilterKeypress(
Display *d,
Window w,
XEvent *ev,
XPointer client_data)
{
return _XimProtoKeypressFilter((Xic)client_data, (XKeyEvent *)ev );
}
Private Bool
_XimProtoKeyreleaseFilter(
Xic ic,
XKeyEvent *ev)
{
#ifdef XIM_CONNECTABLE
Xim im = (Xim)ic->core.im;
#endif
if (IS_FABLICATED(ic)) {
_XimPendingFilter(ic);
UNMARK_FABLICATED(ic);
return NOTFILTERD;
}
if (IS_NEGLECT_EVENT(ic, KeyReleaseMask))
return FILTERD;
#ifdef XIM_CONNECTABLE
if (!IS_IC_CONNECTED(ic)) {
if (IS_CONNECTABLE(im)) {
if (_XimConnectServer(im)) {
if (!_XimReCreateIC(ic)) {
_XimDelayModeSetAttr(im);
return NOTFILTERD;
}
} else {
return NOTFILTERD;
}
} else {
return NOTFILTERD;
}
}
#else
if (!IS_IC_CONNECTED(ic))
return NOTFILTERD;
#endif /* XIM_CONNECTABLE */
if (!IS_FORWARD_EVENT(ic, KeyReleaseMask)) {
if (_XimOnKeysCheck(ic, ev))
return FILTERD;
return NOTFILTERD;
}
if (_XimOffKeysCheck(ic, ev))
return FILTERD;
if (_XimForwardEvent(ic, (XEvent *)ev,
IS_SYNCHRONOUS_EVENT(ic, KeyPressMask)))
return FILTERD;
return NOTFILTERD;
}
Private Bool
_XimFilterKeyrelease(
Display *d,
Window w,
XEvent *ev,
XPointer client_data)
{
return _XimProtoKeyreleaseFilter((Xic)client_data, (XKeyEvent *)ev);
}
Private void
_XimRegisterKeyPressFilter(
Xic ic)
{
if (ic->core.focus_window) {
if (!(ic->private.proto.registed_filter_event & KEYPRESS_MASK)) {
_XRegisterFilterByType (ic->core.im->core.display,
ic->core.focus_window,
KeyPress, KeyPress,
_XimFilterKeypress,
(XPointer)ic);
ic->private.proto.registed_filter_event |= KEYPRESS_MASK;
}
}
return;
}
Private void
_XimRegisterKeyReleaseFilter(
Xic ic)
{
if (ic->core.focus_window) {
if (!(ic->private.proto.registed_filter_event & KEYRELEASE_MASK)) {
_XRegisterFilterByType (ic->core.im->core.display,
ic->core.focus_window,
KeyRelease, KeyRelease,
_XimFilterKeyrelease,
(XPointer)ic);
ic->private.proto.registed_filter_event |= KEYRELEASE_MASK;
}
}
return;
}
Private void
_XimUnregisterKeyPressFilter(
Xic ic)
{
if (ic->core.focus_window) {
if (ic->private.proto.registed_filter_event & KEYPRESS_MASK) {
_XUnregisterFilter (ic->core.im->core.display,
ic->core.focus_window,
_XimFilterKeypress,
(XPointer)ic);
ic->private.proto.registed_filter_event &= ~KEYPRESS_MASK;
}
}
return;
}
Private void
_XimUnregisterKeyReleaseFilter(
Xic ic)
{
if (ic->core.focus_window) {
if (ic->private.proto.registed_filter_event & KEYRELEASE_MASK) {
_XUnregisterFilter (ic->core.im->core.display,
ic->core.focus_window,
_XimFilterKeyrelease,
(XPointer)ic);
ic->private.proto.registed_filter_event &= ~KEYRELEASE_MASK;
}
}
return;
}
Public void
_XimRegisterFilter(
Xic ic)
{
_XimRegisterKeyPressFilter(ic);
if (IS_FORWARD_EVENT(ic, KeyReleaseMask))
_XimRegisterKeyReleaseFilter(ic);
return;
}
Public void
_XimUnregisterFilter(
Xic ic)
{
_XimUnregisterKeyPressFilter(ic);
_XimUnregisterKeyReleaseFilter(ic);
return;
}
Public void
_XimReregisterFilter(
Xic ic)
{
if (IS_FORWARD_EVENT(ic, KeyReleaseMask))
_XimRegisterKeyReleaseFilter(ic);
else
_XimUnregisterKeyReleaseFilter(ic);
return;
}
Private Bool
_XimFilterServerDestroy(
Display *d,
Window w,
XEvent *ev,
XPointer client_data)
{
Xim im = (Xim)client_data;
if (ev->type == DestroyNotify) {
UNMARK_SERVER_CONNECTED(im);
#ifdef XIM_CONNECTABLE
if (!IS_SERVER_CONNECTED(im) && IS_RECONNECTABLE(im)) {
_XimServerReconectableDestroy();
return True;
}
#endif /* XIM_CONNECTABLE */
_XimServerDestroy(im);
}
return True;
}
Public void
_XimRegisterServerFilter(
Xim im)
{
if (im->private.proto.im_window) {
if (!(im->private.proto.registed_filter_event & DESTROYNOTIFY_MASK)) {
_XRegisterFilterByMask(im->core.display,
im->private.proto.im_window,
StructureNotifyMask,
_XimFilterServerDestroy,
(XPointer)im);
XSelectInput(im->core.display, im->private.proto.im_window,
StructureNotifyMask);
im->private.proto.registed_filter_event |= DESTROYNOTIFY_MASK;
}
}
return;
}
Public void
_XimUnregisterServerFilter(
Xim im)
{
if (im->private.proto.im_window) {
if (im->private.proto.registed_filter_event & DESTROYNOTIFY_MASK) {
_XUnregisterFilter(im->core.display,
im->private.proto.im_window,
_XimFilterServerDestroy,
(XPointer)im);
im->private.proto.registed_filter_event &= ~DESTROYNOTIFY_MASK;
}
}
return;
}
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