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Diffstat (limited to 'libX11/modules/im/ximcp/imDefFlt.c')
-rw-r--r--libX11/modules/im/ximcp/imDefFlt.c420
1 files changed, 420 insertions, 0 deletions
diff --git a/libX11/modules/im/ximcp/imDefFlt.c b/libX11/modules/im/ximcp/imDefFlt.c
new file mode 100644
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+++ b/libX11/modules/im/ximcp/imDefFlt.c
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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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