Clipboard
/* Copyright (C) 2010-2012 by Cristian Henzel <oss@rspwn.com>
*
* forked from parcellite, which is
* Copyright (C) 2007-2008 by Xyhthyx <xyhthyx@gmail.com>
*
* This file is part of ClipIt.
*
* ClipIt is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* ClipIt is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <glib.h>
#include <gtk/gtk.h>
#include "daemon.h"
static gint timeout_id;
static gchar *primary_text;
static gchar *clipboard_text;
static GtkClipboard *primary;
static GtkClipboard *clipboard;
/* Called during the daemon loop to protect primary/clipboard contents */
static void daemon_check()
{
/* Get current primary/clipboard contents */
gchar *primary_temp = gtk_clipboard_wait_for_text(primary);
gchar *clipboard_temp = gtk_clipboard_wait_for_text(clipboard);
/* Check if primary contents were lost */
if ((primary_temp == NULL) && (primary_text != NULL))
{
/* Check contents */
gint count;
GdkAtom *targets;
gboolean contents = gtk_clipboard_wait_for_targets(primary, &targets, &count);
g_free(targets);
/* Only recover lost contents if there isn't any other type of content in the clipboard */
if (!contents)
gtk_clipboard_set_text(primary, primary_text, -1);
}
else
{
/* Get the button state to check if the mouse button is being held */
GdkModifierType button_state;
gdk_window_get_pointer(NULL, NULL, NULL, &button_state);
if ((primary_temp != NULL) && !(button_state & GDK_BUTTON1_MASK))
{
g_free(primary_text);
primary_text = g_strdup(primary_temp);
}
}
/* Check if clipboard contents were lost */
if ((clipboard_temp == NULL) && (clipboard_text != NULL))
{
/* Check contents */
gint count;
GdkAtom *targets;
gboolean contents = gtk_clipboard_wait_for_targets(clipboard, &targets, &count);
g_free(targets);
/* Only recover lost contents if there isn't any other type of content in the clipboard */
if (!contents)
gtk_clipboard_set_text(clipboard, clipboard_text, -1);
}
else
{
g_free(clipboard_text);
clipboard_text = g_strdup(clipboard_temp);
}
g_free(primary_temp);
g_free(clipboard_temp);
}
/* Called if timeout was destroyed */
static void reset_daemon(gpointer data)
{
if (timeout_id != 0)
g_source_remove(timeout_id);
/* Add the daemon loop */
timeout_id = g_timeout_add_full(G_PRIORITY_LOW,
DAEMON_INTERVAL,
(GSourceFunc)daemon_check,
NULL,
(GDestroyNotify)reset_daemon);
}
/* Initializes daemon mode */
void init_daemon_mode()
{
/* Create clipboard and primary and connect signals */
primary = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
clipboard = gtk_clipboard_get(GDK_SELECTION_CLIPBOARD);
/* Add the daemon loop */
timeout_id = g_timeout_add_full(G_PRIORITY_LOW,
DAEMON_INTERVAL,
(GSourceFunc)daemon_check,
NULL,
(GDestroyNotify)reset_daemon);
/* Start daemon loop */
gtk_main();
}