1 files changed, 117 insertions, 0 deletions
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 <stdlib.h>
+
+#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;
+}
+