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Diffstat (limited to 'libX11/src/RegstFlt.c')
| -rw-r--r-- | libX11/src/RegstFlt.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/libX11/src/RegstFlt.c b/libX11/src/RegstFlt.c new file mode 100644 index 000000000..0648a54d1 --- /dev/null +++ b/libX11/src/RegstFlt.c @@ -0,0 +1,157 @@ +/* $Xorg: RegstFlt.c,v 1.5 2001/02/09 02:03:35 xorgcvs Exp $ */ + + /* + * Copyright 1990, 1991 by OMRON Corporation + * + * 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 OMRON not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. OMRON makes no representations + * about the suitability of this software for any purpose. It is provided + * "as is" without express or implied warranty. + * + * OMRON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL OMRON 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 + * TORTUOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + * + * Author: Seiji Kuwari OMRON Corporation + * kuwa@omron.co.jp + * kuwa%omron.co.jp@uunet.uu.net + */ +/* + +Copyright 1990, 1991, 1998 The Open Group + +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. + +The above copyright notice and this permission notice shall be included +in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR +OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, +ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall +not be used in advertising or otherwise to promote the sale, use or +other dealings in this Software without prior written authorization +from The Open Group. + +*/ +/* $XFree86: xc/lib/X11/RegstFlt.c,v 1.5 2003/04/13 19:22:17 dawes Exp $ */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include "Xlibint.h" +#include "Xlcint.h" + +static void +_XFreeIMFilters( + Display *display) +{ + register XFilterEventList fl; + + while ((fl = display->im_filters)) { + display->im_filters = fl->next; + Xfree((char *)fl); + } +} + +/* + * Register a filter with the filter machinery by event mask. + */ +void +_XRegisterFilterByMask( + Display *display, + Window window, + unsigned long event_mask, + Bool (*filter)( + Display*, Window, XEvent*, XPointer + ), + XPointer client_data) +{ + XFilterEventRec *rec; + + rec = (XFilterEventList)Xmalloc(sizeof(XFilterEventRec)); + if (!rec) + return; + rec->window = window; + rec->event_mask = event_mask; + rec->start_type = 0; + rec->end_type = 0; + rec->filter = filter; + rec->client_data = client_data; + LockDisplay(display); + rec->next = display->im_filters; + display->im_filters = rec; + display->free_funcs->im_filters = _XFreeIMFilters; + UnlockDisplay(display); +} + +/* + * Register a filter with the filter machinery by type code. + */ +void +_XRegisterFilterByType( + Display *display, + Window window, + int start_type, + int end_type, + Bool (*filter)( + Display*, Window, XEvent*, XPointer + ), + XPointer client_data) +{ + XFilterEventRec *rec; + + rec = (XFilterEventList)Xmalloc(sizeof(XFilterEventRec)); + if (!rec) + return; + rec->window = window; + rec->event_mask = 0; + rec->start_type = start_type; + rec->end_type = end_type; + rec->filter = filter; + rec->client_data = client_data; + LockDisplay(display); + rec->next = display->im_filters; + display->im_filters = rec; + display->free_funcs->im_filters = _XFreeIMFilters; + UnlockDisplay(display); +} + +void +_XUnregisterFilter( + Display *display, + Window window, + Bool (*filter)( + Display*, Window, XEvent*, XPointer + ), + XPointer client_data) +{ + register XFilterEventList *prev, fl; + + for (prev = &display->im_filters; (fl = *prev); ) { + if (fl->window == window && + fl->filter == filter && fl->client_data == client_data) { + *prev = fl->next; + Xfree((char *)fl); + } else + prev = &fl->next; + } +} |