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authormarha <marha@users.sourceforge.net>2009-11-05 19:00:15 +0000
committermarha <marha@users.sourceforge.net>2009-11-05 19:00:15 +0000
commit87ae92b4b611b4bb494816c9b6a1a8211e1c2f59 (patch)
tree9c5568e1d0765c66ba7ad7de6c4859c8a163c31b /libXt/src/ActionHook.c
parent17cd2280a71d7ae609961734b0aa750919147529 (diff)
parentd65b4c94a92498a770e3e5c2497bf5abb921c522 (diff)
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Added libXt library
Diffstat (limited to 'libXt/src/ActionHook.c')
-rw-r--r--libXt/src/ActionHook.c135
1 files changed, 135 insertions, 0 deletions
diff --git a/libXt/src/ActionHook.c b/libXt/src/ActionHook.c
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+/* $Xorg: ActionHook.c,v 1.4 2001/02/09 02:03:53 xorgcvs Exp $ */
+
+/*LINTLIBRARY*/
+
+/***********************************************************
+Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts,
+Copyright 1993 by Sun Microsystems, Inc. Mountain View, CA.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+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 names of Digital or Sun not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL 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.
+
+SUN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT-
+NESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SUN BE LI-
+ABLE 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.
+
+******************************************************************/
+
+/*
+
+Copyright 1987, 1988, 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/Xt/ActionHook.c,v 1.2 2001/08/22 22:52:17 dawes Exp $ */
+
+/*
+ * Contains XtAppAddActionHook, XtRemoveActionHook
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "IntrinsicI.h"
+
+
+/*ARGSUSED*/
+static void FreeActionHookList(
+ Widget widget, /* unused (and invalid) */
+ XtPointer closure, /* ActionHook* */
+ XtPointer call_data) /* unused */
+{
+ ActionHook list = *(ActionHook*)closure;
+ while (list != NULL) {
+ ActionHook next = list->next;
+ XtFree( (XtPointer)list );
+ list = next;
+ }
+}
+
+
+XtActionHookId XtAppAddActionHook(
+ XtAppContext app,
+ XtActionHookProc proc,
+ XtPointer closure)
+{
+ ActionHook hook = XtNew(ActionHookRec);
+ LOCK_APP(app);
+ hook->next = app->action_hook_list;
+ hook->app = app;
+ hook->proc = proc;
+ hook->closure = closure;
+ if (app->action_hook_list == NULL) {
+ _XtAddCallback( &app->destroy_callbacks,
+ FreeActionHookList,
+ (XtPointer)&app->action_hook_list
+ );
+ }
+ app->action_hook_list = hook;
+ UNLOCK_APP(app);
+ return (XtActionHookId)hook;
+}
+
+
+void XtRemoveActionHook(
+ XtActionHookId id)
+{
+ ActionHook *p, hook = (ActionHook)id;
+ XtAppContext app = hook->app;
+ LOCK_APP(app);
+ for (p = &app->action_hook_list; p != NULL && *p != hook; p = &(*p)->next);
+ if (p) {
+ *p = hook->next;
+ XtFree( (XtPointer)hook );
+ if (app->action_hook_list == NULL)
+ _XtRemoveCallback(&app->destroy_callbacks, FreeActionHookList,
+ (XtPointer) &app->action_hook_list);
+ }
+#ifdef DEBUG
+ else {
+ XtAppWarningMsg(app, "badId", "xtRemoveActionHook", XtCXtToolkitError,
+ "XtRemoveActionHook called with bad or old hook id",
+ (String*)NULL, (Cardinal*)NULL);
+ }
+#endif /*DEBUG*/
+ UNLOCK_APP(app);
+}