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|
/* $Xorg: imTrX.c,v 1.4 2000/08/17 19:45:15 cpqbld Exp $ */
/******************************************************************
Copyright 1992 by Sun Microsystems, Inc.
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 Sun Microsystems, Inc.
and FUJITSU LIMITED not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior permission.
Sun Microsystems, Inc. and FUJITSU LIMITED makes no representations about
the suitability of this software for any purpose.
It is provided "as is" without express or implied warranty.
Sun Microsystems Inc. AND FUJITSU LIMITED DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS, IN NO EVENT SHALL Sun Microsystems, Inc. AND 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: Hideki Hiura (hhiura@Sun.COM) Sun Microsystems, Inc.
Takashi Fujiwara FUJITSU LIMITED
fujiwara@a80.tech.yk.fujitsu.co.jp
******************************************************************/
/* $XFree86: xc/lib/X11/imTrX.c,v 1.2 2002/11/26 01:21:25 dawes Exp $ */
#include <string.h>
#include <X11/Xatom.h>
#define NEED_EVENTS
#include "Xlibint.h"
#include "Xlcint.h"
#include "Ximint.h"
#include "XimTrInt.h"
#include "XimTrX.h"
Private Bool
_XimXRegisterDispatcher(im, callback, call_data)
Xim im;
Bool (*callback)(
#if NeedNestedPrototypes
Xim, INT16, XPointer, XPointer
#endif
);
XPointer call_data;
{
XIntrCallbackPtr rec;
XSpecRec *spec = (XSpecRec *)im->private.proto.spec;
if (!(rec = (XIntrCallbackPtr)Xmalloc(sizeof(XIntrCallbackRec))))
return False;
rec->func = callback;
rec->call_data = call_data;
rec->next = spec->intr_cb;
spec->intr_cb = rec;
return True;
}
Private void
_XimXFreeIntrCallback(im)
Xim im;
{
XSpecRec *spec = (XSpecRec *)im->private.proto.spec;
register XIntrCallbackPtr rec, next;
for (rec = spec->intr_cb; rec;) {
next = rec->next;
Xfree(rec);
rec = next;
}
return;
}
Private Bool
#if NeedFunctionPrototypes
_XimXCallDispatcher(Xim im, INT16 len, XPointer data)
#else
_XimXCallDispatcher(im, len, data)
Xim im;
INT16 len;
XPointer data;
#endif
{
register XIntrCallbackRec *rec;
XSpecRec *spec = (XSpecRec *)im->private.proto.spec;
for (rec = spec->intr_cb; rec; rec = rec->next) {
if ((*rec->func)(im, len, data, rec->call_data))
return True;
}
return False;
}
Private Bool
_XimXFilterWaitEvent(d, w, ev, arg)
Display *d;
Window w;
XEvent *ev;
XPointer arg;
{
Xim im = (Xim)arg;
XSpecRec *spec = (XSpecRec *)im->private.proto.spec;
Bool ret;
spec->ev = (XPointer)ev;
ret = _XimFilterWaitEvent(im);
/*
* If ev is a pointer to a stack variable, there could be
* a coredump later on if the pointer is dereferenced.
* Therefore, reset to NULL to force reinitialization in
* _XimXRead().
*
* Keep in mind _XimXRead may be called again when the stack
* is very different.
*/
spec->ev = (XPointer)NULL;
return ret;
}
Private Bool
_CheckConnect(display, event, xim)
Display *display;
XEvent *event;
XPointer xim;
{
Xim im = (Xim)xim;
XSpecRec *spec = (XSpecRec *)im->private.proto.spec;
if ((event->type == ClientMessage)
&& (event->xclient.message_type == spec->imconnectid)) {
return True;
}
return False;
}
Private Bool
#if NeedFunctionPrototypes
_XimXConnect(Xim im)
#else
_XimXConnect(im)
Xim im;
#endif
{
XEvent event;
XSpecRec *spec = (XSpecRec *)im->private.proto.spec;
CARD32 major_code;
CARD32 minor_code;
if (!(spec->lib_connect_wid = XCreateSimpleWindow(im->core.display,
DefaultRootWindow(im->core.display), 0, 0, 1, 1, 1, 0, 0))) {
return False;
}
event.xclient.type = ClientMessage;
event.xclient.display = im->core.display;
event.xclient.window = im->private.proto.im_window;
event.xclient.message_type = spec->imconnectid;
event.xclient.format = 32;
event.xclient.data.l[0] = (CARD32)spec->lib_connect_wid;
event.xclient.data.l[1] = spec->major_code;
event.xclient.data.l[2] = spec->minor_code;
if(event.xclient.data.l[1] == 1 || event.xclient.data.l[1] == 2) {
XWindowAttributes atr;
long event_mask;
XGetWindowAttributes(im->core.display, spec->lib_connect_wid, &atr);
event_mask = atr.your_event_mask | PropertyChangeMask;
XSelectInput(im->core.display, spec->lib_connect_wid, event_mask);
_XRegisterFilterByType(im->core.display, spec->lib_connect_wid,
PropertyNotify, PropertyNotify,
_XimXFilterWaitEvent, (XPointer)im);
}
XSendEvent(im->core.display, im->private.proto.im_window,
False, NoEventMask, &event);
XFlush(im->core.display);
for (;;) {
XIfEvent(im->core.display, &event, _CheckConnect, (XPointer)im);
if (event.xclient.type != ClientMessage) {
return False;
}
if (event.xclient.message_type == spec->imconnectid)
break;
}
spec->ims_connect_wid = (Window)event.xclient.data.l[0];
major_code = (CARD32)event.xclient.data.l[1];
minor_code = (CARD32)event.xclient.data.l[2];
if (((major_code == 0) && (minor_code <= 2)) ||
((major_code == 1) && (minor_code == 0)) ||
((major_code == 2) && (minor_code <= 1))) {
spec->major_code = major_code;
spec->minor_code = minor_code;
}
if (((major_code == 0) && (minor_code == 2)) ||
((major_code == 2) && (minor_code == 1))) {
spec->BoundarySize = (CARD32)event.xclient.data.l[3];
}
/* ClientMessage Event Filter */
_XRegisterFilterByType(im->core.display, spec->lib_connect_wid,
ClientMessage, ClientMessage,
_XimXFilterWaitEvent, (XPointer)im);
return True;
}
Private Bool
#if NeedFunctionPrototypes
_XimXShutdown(Xim im)
#else
_XimXShutdown(im)
Xim im;
#endif
{
XSpecRec *spec = (XSpecRec *)im->private.proto.spec;
if (!spec)
return True;
/* ClientMessage Event Filter */
_XUnregisterFilter(im->core.display,
((XSpecRec *)im->private.proto.spec)->lib_connect_wid,
_XimXFilterWaitEvent, (XPointer)im);
XDestroyWindow(im->core.display,
((XSpecRec *)im->private.proto.spec)->lib_connect_wid);
_XimXFreeIntrCallback(im);
Xfree(spec);
im->private.proto.spec = 0;
return True;
}
Private char *
_NewAtom(atomName)
char *atomName;
{
static int sequence = 0;
(void)sprintf(atomName, "_client%d", sequence);
sequence = ((sequence < 20) ? sequence + 1 : 0);
return atomName;
}
Private Bool
#if NeedFunctionPrototypes
_XimXWrite(Xim im, INT16 len, XPointer data)
#else
_XimXWrite(im, len, data)
Xim im;
INT16 len;
XPointer data;
#endif
{
Atom atom;
char atomName[16];
XSpecRec *spec = (XSpecRec *)im->private.proto.spec;
XEvent event;
CARD8 *p;
CARD32 major_code = spec->major_code;
CARD32 minor_code = spec->minor_code;
int BoundSize;
bzero(&event,sizeof(XEvent));
event.xclient.type = ClientMessage;
event.xclient.display = im->core.display;
event.xclient.window = spec->ims_connect_wid;
if(major_code == 1 && minor_code == 0) {
BoundSize = 0;
} else if((major_code == 0 && minor_code == 2) ||
(major_code == 2 && minor_code == 1)) {
BoundSize = spec->BoundarySize;
} else if(major_code == 0 && minor_code == 1) {
BoundSize = len;
} else {
BoundSize = XIM_CM_DATA_SIZE;
}
if (len > BoundSize) {
event.xclient.message_type = spec->improtocolid;
atom = XInternAtom(im->core.display, _NewAtom(atomName), False);
XChangeProperty(im->core.display, spec->ims_connect_wid,
atom, XA_STRING, 8, PropModeAppend,
(unsigned char *)data, len);
if(major_code == 0) {
event.xclient.format = 32;
event.xclient.data.l[0] = (long)len;
event.xclient.data.l[1] = (long)atom;
XSendEvent(im->core.display, spec->ims_connect_wid,
False, NoEventMask, &event);
}
} else {
int length;
event.xclient.format = 8;
for(length = 0 ; length < len ; length += XIM_CM_DATA_SIZE) {
p = (CARD8 *)&event.xclient.data.b[0];
if((length + XIM_CM_DATA_SIZE) >= len) {
event.xclient.message_type = spec->improtocolid;
bzero(p, XIM_CM_DATA_SIZE);
memcpy((char *)p, (data + length), (len - length));
} else {
event.xclient.message_type = spec->immoredataid;
memcpy((char *)p, (data + length), XIM_CM_DATA_SIZE);
}
XSendEvent(im->core.display, spec->ims_connect_wid,
False, NoEventMask, &event);
}
}
return True;
}
Private Bool
_XimXGetReadData(im, buf, buf_len, ret_len, event)
Xim im;
char *buf;
int buf_len;
int *ret_len;
XEvent *event;
{
char *data;
int len;
char tmp_buf[XIM_CM_DATA_SIZE];
XSpecRec *spec = (XSpecRec *)im->private.proto.spec;
unsigned long length;
Atom prop;
int return_code;
Atom type_ret;
int format_ret;
unsigned long nitems;
unsigned long bytes_after_ret;
unsigned char *prop_ret;
if ((event->type == ClientMessage) &&
!((event->xclient.message_type == spec->improtocolid) ||
(event->xclient.message_type == spec->immoredataid))) {
/* This event has nothing to do with us,
* FIXME should not have gotten here then...
*/
return False;
} else if ((event->type == ClientMessage) && (event->xclient.format == 8)) {
data = event->xclient.data.b;
if (buf_len >= XIM_CM_DATA_SIZE) {
(void)memcpy(buf, data, XIM_CM_DATA_SIZE);
*ret_len = XIM_CM_DATA_SIZE;
} else {
(void)memcpy(buf, data, buf_len);
len = XIM_CM_DATA_SIZE - buf_len;
(void)memcpy(tmp_buf, &data[buf_len], len);
bzero(data, XIM_CM_DATA_SIZE);
(void)memcpy(data, tmp_buf, len);
XPutBackEvent(im->core.display, event);
*ret_len = buf_len;
}
} else if ((event->type == ClientMessage)
&& (event->xclient.format == 32)) {
length = (unsigned long)event->xclient.data.l[0];
prop = (Atom)event->xclient.data.l[1];
return_code = XGetWindowProperty(im->core.display,
spec->lib_connect_wid, prop, 0L,
(long)((length + 3)/ 4), True, AnyPropertyType,
&type_ret, &format_ret, &nitems, &bytes_after_ret, &prop_ret);
if (return_code != Success || format_ret == 0 || nitems == 0) {
if (return_code == Success)
XFree(prop_ret);
return False;
}
if (buf_len >= length) {
(void)memcpy(buf, prop_ret, (int)nitems);
*ret_len = (int)nitems;
if (bytes_after_ret > 0) {
XGetWindowProperty(im->core.display,
spec->lib_connect_wid, prop, 0L,
((length + bytes_after_ret + 3)/ 4), True, AnyPropertyType,
&type_ret, &format_ret, &nitems, &bytes_after_ret,
&prop_ret);
XChangeProperty(im->core.display, spec->lib_connect_wid, prop,
XA_STRING, 8, PropModePrepend, &prop_ret[length],
(nitems - length));
}
} else {
(void)memcpy(buf, prop_ret, buf_len);
*ret_len = buf_len;
len = nitems - buf_len;
if (bytes_after_ret > 0) {
XFree(prop_ret);
XGetWindowProperty(im->core.display,
spec->lib_connect_wid, prop, 0L,
((length + bytes_after_ret + 3)/ 4), True, AnyPropertyType,
&type_ret, &format_ret, &nitems, &bytes_after_ret, &prop_ret);
}
XChangeProperty(im->core.display, spec->lib_connect_wid, prop,
XA_STRING, 8, PropModePrepend, &prop_ret[buf_len], len);
event->xclient.data.l[0] = (long)len;
event->xclient.data.l[1] = (long)prop;
XPutBackEvent(im->core.display, event);
}
XFree(prop_ret);
} else if (event->type == PropertyNotify) {
prop = event->xproperty.atom;
return_code = XGetWindowProperty(im->core.display,
spec->lib_connect_wid, prop, 0L,
1000000L, True, AnyPropertyType,
&type_ret, &format_ret, &nitems, &bytes_after_ret, &prop_ret);
if (return_code != Success || format_ret == 0 || nitems == 0) {
if (return_code == Success)
XFree(prop_ret);
return False;
}
if (buf_len >= nitems) {
(void)memcpy(buf, prop_ret, (int)nitems);
*ret_len = (int)nitems;
} else {
(void)memcpy(buf, prop_ret, buf_len);
*ret_len = buf_len;
len = nitems - buf_len;
XChangeProperty(im->core.display, spec->lib_connect_wid, prop,
XA_STRING, 8, PropModePrepend, &prop_ret[buf_len], len);
}
XFree(prop_ret);
}
return True;
}
Private Bool
_CheckCMEvent(display, event, xim)
Display *display;
XEvent *event;
XPointer xim;
{
Xim im = (Xim)xim;
XSpecRec *spec = (XSpecRec *)im->private.proto.spec;
CARD32 major_code = spec->major_code;
if ((event->type == ClientMessage)
&&((event->xclient.message_type == spec->improtocolid) ||
(event->xclient.message_type == spec->immoredataid)))
return True;
if((major_code == 1 || major_code == 2) &&
(event->type == PropertyNotify) &&
(event->xproperty.state == PropertyNewValue))
return True;
return False;
}
Private Bool
#if NeedFunctionPrototypes
_XimXRead(Xim im, XPointer recv_buf, int buf_len, int *ret_len)
#else
_XimXRead(im, recv_buf, buf_len, ret_len)
Xim im;
XPointer recv_buf;
int buf_len;
int *ret_len;
#endif
{
XEvent *ev;
XEvent event;
int len;
XSpecRec *spec = (XSpecRec *)im->private.proto.spec;
XPointer arg = spec->ev;
if (!arg) {
bzero(&event, sizeof(XEvent));
ev = &event;
XIfEvent(im->core.display, ev, _CheckCMEvent, (XPointer)im);
} else {
ev = (XEvent *)arg;
spec->ev = (XPointer)NULL;
}
if (!(_XimXGetReadData(im, recv_buf, buf_len, &len, ev)))
return False;
*ret_len = len;
return True;
}
Private void
#if NeedFunctionPrototypes
_XimXFlush(Xim im)
#else
_XimXFlush(im)
Xim im;
#endif
{
XFlush(im->core.display);
return;
}
Public Bool
_XimXConf(im, address)
Xim im;
char *address;
{
XSpecRec *spec;
if (!(spec = (XSpecRec *)Xmalloc(sizeof(XSpecRec))))
return False;
bzero(spec, sizeof(XSpecRec));
spec->improtocolid = XInternAtom(im->core.display, _XIM_PROTOCOL, False);
spec->imconnectid = XInternAtom(im->core.display, _XIM_XCONNECT, False);
spec->immoredataid = XInternAtom(im->core.display, _XIM_MOREDATA, False);
spec->major_code = MAJOR_TRANSPORT_VERSION;
spec->minor_code = MINOR_TRANSPORT_VERSION;
im->private.proto.spec = (XPointer)spec;
im->private.proto.connect = _XimXConnect;
im->private.proto.shutdown = _XimXShutdown;
im->private.proto.write = _XimXWrite;
im->private.proto.read = _XimXRead;
im->private.proto.flush = _XimXFlush;
im->private.proto.register_dispatcher = _XimXRegisterDispatcher;
im->private.proto.call_dispatcher = _XimXCallDispatcher;
return True;
}
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