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authorMike Gabriel <mike.gabriel@das-netzwerkteam.de>2017-07-21 12:31:09 +0200
committerMike Gabriel <mike.gabriel@das-netzwerkteam.de>2017-08-25 10:06:49 +0200
commitc350873c7c977efe5210484f04160be45f84ba7e (patch)
tree717d33eb315f4def1307d65108d14715696cd5cf /nx-X11/lib/modules/im/ximcp/imLcFlt.c
parent1472e7e37838f17b7ed948fa206e8c3434a9d346 (diff)
downloadnx-libs-c350873c7c977efe5210484f04160be45f84ba7e.tar.gz
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Convert nx-X11/lib/ build flow from imake to autotools.
Diffstat (limited to 'nx-X11/lib/modules/im/ximcp/imLcFlt.c')
-rw-r--r--nx-X11/lib/modules/im/ximcp/imLcFlt.c157
1 files changed, 157 insertions, 0 deletions
diff --git a/nx-X11/lib/modules/im/ximcp/imLcFlt.c b/nx-X11/lib/modules/im/ximcp/imLcFlt.c
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index 000000000..50f4c252a
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+++ b/nx-X11/lib/modules/im/ximcp/imLcFlt.c
@@ -0,0 +1,157 @@
+/******************************************************************
+
+ Copyright 1992 by Fuji Xerox Co., Ltd.
+ Copyright 1992, 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 Fuji Xerox,
+FUJITSU LIMITED not be used in advertising or publicity pertaining
+to distribution of the software without specific, written prior
+permission. Fuji Xerox, FUJITSU LIMITED make no representations
+about the suitability of this software for any purpose.
+It is provided "as is" without express or implied warranty.
+
+FUJI XEROX, FUJITSU LIMITED DISCLAIM ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL FUJI XEROX,
+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 : Kazunori Nishihara Fuji Xerox
+ Modifier : Takashi Fujiwara FUJITSU LIMITED
+ fujiwara@a80.tech.yk.fujitsu.co.jp
+
+******************************************************************/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "Xlibint.h"
+#include <nx-X11/keysym.h>
+#include "Xlcint.h"
+#include "Ximint.h"
+
+Bool
+_XimLocalFilter(Display *d, Window w, XEvent *ev, XPointer client_data)
+{
+ Xic ic = (Xic)client_data;
+ KeySym keysym;
+ static char buf[256];
+ static unsigned prevcode = 0, prevstate = 0;
+ unsigned currstate;
+ DefTree *b = ic->private.local.base.tree;
+ DTIndex t;
+ Bool braille = False, anymodifier = False;
+
+ if(ev->xkey.keycode == 0)
+ return (False);
+
+ XLookupString((XKeyEvent *)ev, buf, sizeof(buf), &keysym, NULL);
+
+ if(keysym >= XK_braille_dot_1 && keysym <= XK_braille_dot_8) {
+ if(ev->type == KeyPress) {
+ ic->private.local.brl_pressed |=
+ 1<<(keysym-XK_braille_dot_1);
+ return(True);
+ } else {
+ if(!ic->private.local.brl_committing
+ || ev->xkey.time - ic->private.local.brl_release_start > 300) {
+ ic->private.local.brl_committing = ic->private.local.brl_pressed;
+ ic->private.local.brl_release_start = ev->xkey.time;
+ }
+ ic->private.local.brl_pressed &= ~(1<<(keysym-XK_braille_dot_1));
+ if(!ic->private.local.brl_pressed && ic->private.local.brl_committing) {
+ /* Commited a braille pattern, let it go through compose tree */
+ keysym = XK_braille_blank | ic->private.local.brl_committing;
+ ev->type = KeyPress;
+ braille = True;
+ } else {
+ return(True);
+ }
+ }
+ }
+
+ if(((Xim)ic->core.im)->private.local.top == 0 )
+ goto emit_braille;
+
+ currstate = ev->xkey.state;
+ if(ev->type == KeyPress) {
+ prevcode = ev->xkey.keycode;
+ prevstate = currstate;
+
+ if(IsModifierKey(keysym))
+ return(False);
+ prevcode = 0;
+ } else {
+ if(prevcode != ev->xkey.keycode)
+ return False;
+
+ /* For lookup, we use the state at the time when the key was pressed, */
+ /* because this state was not affected by the modifier that is mapped */
+ /* to the key. */
+ ev->xkey.state = prevstate;
+ XLookupString((XKeyEvent *)ev, buf, sizeof(buf), &keysym, NULL);
+ }
+
+ for(t = ic->private.local.context; t; t = b[t].next) {
+ if(IsModifierKey(b[t].keysym))
+ anymodifier = True;
+ if(((ev->xkey.state & b[t].modifier_mask) == b[t].modifier) &&
+ (keysym == b[t].keysym))
+ break;
+ }
+
+ /* Restore the state */
+ ev->xkey.state = currstate;
+
+ if(t) { /* Matched */
+ if(b[t].succession) { /* Intermediate */
+ ic->private.local.context = b[t].succession;
+ return (ev->type == KeyPress);
+ } else { /* Terminate (reached to leaf) */
+ ic->private.local.composed = t;
+ ic->private.local.brl_committed = 0;
+ /* return back to client KeyPressEvent keycode == 0 */
+ ev->xkey.keycode = 0;
+ ev->xkey.type = KeyPress;
+ XPutBackEvent(d, ev);
+ if(prevcode){
+ /* For modifier key releases, restore the event, as we do not */
+ /* filter it. */
+ ev->xkey.type = KeyRelease;
+ ev->xkey.keycode = prevcode;
+ }
+ /* initialize internal state for next key sequence */
+ ic->private.local.context = ((Xim)ic->core.im)->private.local.top;
+ return (ev->type == KeyPress);
+ }
+ } else { /* Unmatched */
+ /* Unmatched modifier key releases abort matching only in the case that */
+ /* there was any modifier that would have matched */
+ if((ic->private.local.context == ((Xim)ic->core.im)->private.local.top) ||
+ (ev->type == KeyRelease && !anymodifier)) {
+ goto emit_braille;
+ }
+ /* Error (Sequence Unmatch occured) */
+ /* initialize internal state for next key sequence */
+ ic->private.local.context = ((Xim)ic->core.im)->private.local.top;
+ return (ev->type == KeyPress);
+ }
+
+emit_braille:
+ if(braille) {
+ /* Braille pattern is not in compose tree, emit alone */
+ ic->private.local.brl_committed = ic->private.local.brl_committing;
+ ic->private.local.composed = 0;
+ ev->xkey.keycode = 0;
+ _XPutBackEvent(d, ev);
+ return(True);
+ }
+ return(False);
+}