From 505cabbd3036081f26586cabc64c26e7769c0ec9 Mon Sep 17 00:00:00 2001 From: Perberos Date: Thu, 1 Dec 2011 23:53:21 -0300 Subject: moving from https://github.com/perberos/mate-desktop-environment --- plugins/clipboard/xutils.c | 117 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 117 insertions(+) create mode 100644 plugins/clipboard/xutils.c (limited to 'plugins/clipboard/xutils.c') diff --git a/plugins/clipboard/xutils.c b/plugins/clipboard/xutils.c new file mode 100644 index 0000000..4e48b98 --- /dev/null +++ b/plugins/clipboard/xutils.c @@ -0,0 +1,117 @@ +/* + * Copyright © 2004 Red Hat, Inc. + * + * 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 Red Hat not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. Red Hat makes no representations about the + * suitability of this software for any purpose. It is provided "as is" + * without express or implied warranty. + * + * RED HAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL RED HAT + * 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: Matthias Clasen, Red Hat, Inc. + */ + +#include + +#include "xutils.h" + +Atom XA_ATOM_PAIR; +Atom XA_CLIPBOARD_MANAGER; +Atom XA_CLIPBOARD; +Atom XA_DELETE; +Atom XA_INCR; +Atom XA_INSERT_PROPERTY; +Atom XA_INSERT_SELECTION; +Atom XA_MANAGER; +Atom XA_MULTIPLE; +Atom XA_NULL; +Atom XA_SAVE_TARGETS; +Atom XA_TARGETS; +Atom XA_TIMESTAMP; + +unsigned long SELECTION_MAX_SIZE = 0; + + +void +init_atoms (Display *display) +{ + unsigned long max_request_size; + + if (SELECTION_MAX_SIZE > 0) + return; + + XA_ATOM_PAIR = XInternAtom (display, "ATOM_PAIR", False); + XA_CLIPBOARD_MANAGER = XInternAtom (display, "CLIPBOARD_MANAGER", False); + XA_CLIPBOARD = XInternAtom (display, "CLIPBOARD", False); + XA_DELETE = XInternAtom (display, "DELETE", False); + XA_INCR = XInternAtom (display, "INCR", False); + XA_INSERT_PROPERTY = XInternAtom (display, "INSERT_PROPERTY", False); + XA_INSERT_SELECTION = XInternAtom (display, "INSERT_SELECTION", False); + XA_MANAGER = XInternAtom (display, "MANAGER", False); + XA_MULTIPLE = XInternAtom (display, "MULTIPLE", False); + XA_NULL = XInternAtom (display, "NULL", False); + XA_SAVE_TARGETS = XInternAtom (display, "SAVE_TARGETS", False); + XA_TARGETS = XInternAtom (display, "TARGETS", False); + XA_TIMESTAMP = XInternAtom (display, "TIMESTAMP", False); + + max_request_size = XExtendedMaxRequestSize (display); + if (max_request_size == 0) + max_request_size = XMaxRequestSize (display); + + SELECTION_MAX_SIZE = max_request_size - 100; + if (SELECTION_MAX_SIZE > 262144) + SELECTION_MAX_SIZE = 262144; +} + +typedef struct +{ + Window window; + Atom timestamp_prop_atom; +} TimeStampInfo; + +static Bool +timestamp_predicate (Display *display, + XEvent *xevent, + XPointer arg) +{ + TimeStampInfo *info = (TimeStampInfo *)arg; + + if (xevent->type == PropertyNotify && + xevent->xproperty.window == info->window && + xevent->xproperty.atom == info->timestamp_prop_atom) + return True; + + return False; +} + +Time +get_server_time (Display *display, + Window window) +{ + unsigned char c = 'a'; + XEvent xevent; + TimeStampInfo info; + + info.timestamp_prop_atom = XInternAtom (display, "_TIMESTAMP_PROP", False); + info.window = window; + + XChangeProperty (display, window, + info.timestamp_prop_atom, info.timestamp_prop_atom, + 8, PropModeReplace, &c, 1); + + XIfEvent (display, &xevent, + timestamp_predicate, (XPointer)&info); + + return xevent.xproperty.time; +} + -- cgit v1.2.1