1 /**
2 * @file gntclipboard.c
3 *
4 * Copyright (C) 2007 Richard Nelson <wabz@whatsbeef.net>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
19 */
20
21
22 #include "internal.h"
23 #include <glib.h>
24
25 #define PLUGIN_STATIC_NAME GntClipboard
26
27 #ifdef HAVE_X11
28 #include <X11/Xlib.h>
29 #include <X11/Xutil.h>
30 #include <X11/Xatom.h>
31 #endif
32
33 #include <sys/types.h>
34 #include <signal.h>
35
36 #include <glib.h>
37
38 #include <plugin.h>
39 #include <version.h>
40 #include <debug.h>
41 #include <notify.h>
42 #include <gntwm.h>
43
44 #include <gntplugin.h>
45
46 #ifdef HAVE_X11
47 static pid_t child = 0;
48
49 static gulong sig_handle;
50
51 static void
set_clip(gchar * string)52 set_clip(gchar *string)
53 {
54 Window w;
55 XEvent e, respond;
56 XSelectionRequestEvent *req;
57 const char *ids;
58 Display *dpy = XOpenDisplay(NULL);
59
60 if (!dpy)
61 return;
62 ids = getenv("WINDOWID");
63 if (ids == NULL)
64 return;
65 w = atoi(ids);
66 XSetSelectionOwner(dpy, XA_PRIMARY, w, CurrentTime);
67 XFlush(dpy);
68 XSelectInput(dpy, w, StructureNotifyMask);
69 while (TRUE) {
70 XNextEvent(dpy, &e); /* this blocks. */
71 req = &e.xselectionrequest;
72 if (e.type == SelectionRequest) {
73 XChangeProperty(dpy,
74 req->requestor,
75 req->property,
76 XA_STRING,
77 8, PropModeReplace,
78 (unsigned char *)string,
79 strlen(string));
80 respond.xselection.property = req->property;
81 respond.xselection.type = SelectionNotify;
82 respond.xselection.display = req->display;
83 respond.xselection.requestor = req->requestor;
84 respond.xselection.selection = req->selection;
85 respond.xselection.target= req->target;
86 respond.xselection.time = req->time;
87 XSendEvent(dpy, req->requestor, 0, 0, &respond);
88 XFlush (dpy);
89 } else if (e.type == SelectionClear) {
90 return;
91 }
92 }
93 return;
94 }
95
96 static void
clipboard_changed(GntWM * wm,gchar * string)97 clipboard_changed(GntWM *wm, gchar *string)
98 {
99 if (child) {
100 kill(child, SIGTERM);
101 }
102 if ((child = fork() == 0)) {
103 set_clip(string);
104 _exit(0);
105 }
106 }
107 #endif
108
109 static gboolean
plugin_load(PurplePlugin * plugin)110 plugin_load(PurplePlugin *plugin)
111 {
112 #ifdef HAVE_X11
113 if (!XOpenDisplay(NULL)) {
114 purple_debug_warning("gntclipboard", "Couldn't find X display\n");
115 purple_notify_error(NULL, _("Error"), _("Error loading the plugin."),
116 _("Couldn't find X display"));
117 return FALSE;
118 }
119 if (!getenv("WINDOWID")) {
120 purple_debug_warning("gntclipboard", "Couldn't find window\n");
121 purple_notify_error(NULL, _("Error"), _("Error loading the plugin."),
122 _("Couldn't find window"));
123 return FALSE;
124 }
125 sig_handle = g_signal_connect(G_OBJECT(gnt_get_clipboard()), "clipboard_changed", G_CALLBACK(clipboard_changed), NULL);
126 return TRUE;
127 #else
128 purple_notify_error(NULL, _("Error"), _("Error loading the plugin."),
129 _("This plugin cannot be loaded because it was not built with X11 support."));
130 return FALSE;
131 #endif
132 }
133
134 static gboolean
plugin_unload(PurplePlugin * plugin)135 plugin_unload(PurplePlugin *plugin)
136 {
137 #ifdef HAVE_X11
138 if (child) {
139 kill(child, SIGTERM);
140 child = 0;
141 }
142 g_signal_handler_disconnect(G_OBJECT(gnt_get_clipboard()), sig_handle);
143 #endif
144 return TRUE;
145 }
146
147 static PurplePluginInfo info =
148 {
149 PURPLE_PLUGIN_MAGIC,
150 PURPLE_MAJOR_VERSION,
151 PURPLE_MINOR_VERSION,
152 PURPLE_PLUGIN_STANDARD,
153 FINCH_PLUGIN_TYPE,
154 0,
155 NULL,
156 PURPLE_PRIORITY_DEFAULT,
157 "gntclipboard",
158 N_("GntClipboard"),
159 DISPLAY_VERSION,
160 N_("Clipboard plugin"),
161 N_("When the gnt clipboard contents change, "
162 "the contents are made available to X, if possible."),
163 "Richard Nelson <wabz@whatsbeef.net>",
164 PURPLE_WEBSITE,
165 plugin_load,
166 plugin_unload,
167 NULL,
168 NULL,
169 NULL,
170 NULL,
171 NULL,
172
173 /* padding */
174 NULL,
175 NULL,
176 NULL,
177 NULL
178 };
179
180 static void
init_plugin(PurplePlugin * plugin)181 init_plugin(PurplePlugin *plugin)
182 {
183 }
184
185 PURPLE_INIT_PLUGIN(PLUGIN_STATIC_NAME, init_plugin, info)
186