1 /* GTK - The GIMP Toolkit
2 * gtkxembed.c: Utilities for the XEMBED protocol
3 * Copyright (C) 2001, 2003, Red Hat, Inc.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
22 #include "gtkprivate.h"
23 #include "gtkxembed.h"
27 typedef struct _GtkXEmbedMessage GtkXEmbedMessage;
29 struct _GtkXEmbedMessage
38 static GSList *current_messages;
42 * _gtk_xembed_push_message:
45 * Adds a client message to the stack of current XEMBED events.
48 _gtk_xembed_push_message (XEvent *xevent)
50 GtkXEmbedMessage *message = g_slice_new (GtkXEmbedMessage);
52 message->time = xevent->xclient.data.l[0];
53 message->message = xevent->xclient.data.l[1];
54 message->detail = xevent->xclient.data.l[2];
55 message->data1 = xevent->xclient.data.l[3];
56 message->data2 = xevent->xclient.data.l[4];
58 current_messages = g_slist_prepend (current_messages, message);
62 * _gtk_xembed_pop_message:
64 * Removes an event added with _gtk_xembed_push_message()
67 _gtk_xembed_pop_message (void)
69 GtkXEmbedMessage *message = current_messages->data;
70 current_messages = g_slist_delete_link (current_messages, current_messages);
71 g_slice_free (GtkXEmbedMessage, message);
75 * _gtk_xembed_set_focus_wrapped:
77 * Sets a flag indicating that the current focus sequence wrapped
78 * around to the beginning of the ultimate toplevel.
81 _gtk_xembed_set_focus_wrapped (void)
83 GtkXEmbedMessage *message;
85 g_return_if_fail (current_messages != NULL);
86 message = current_messages->data;
87 g_return_if_fail (message->message == XEMBED_FOCUS_PREV || message->message == XEMBED_FOCUS_NEXT);
89 message->data1 |= XEMBED_FOCUS_WRAPAROUND;
93 * _gtk_xembed_get_focus_wrapped:
95 * Gets whether the current focus sequence has wrapped around
96 * to the beginning of the ultimate toplevel.
98 * Return value: %TRUE if the focus sequence has wrapped around.
101 _gtk_xembed_get_focus_wrapped (void)
103 GtkXEmbedMessage *message;
105 g_return_val_if_fail (current_messages != NULL, FALSE);
106 message = current_messages->data;
108 return (message->data1 & XEMBED_FOCUS_WRAPAROUND) != 0;
112 gtk_xembed_get_time (void)
114 if (current_messages)
116 GtkXEmbedMessage *message = current_messages->data;
117 return message->time;
120 return gtk_get_current_event_time ();
124 * _gtk_xembed_send_message:
125 * @recipient: (allow-none): window to which to send the window, or %NULL
126 * in which case nothing will be sent
127 * @message: type of message
128 * @detail: detail field of message
129 * @data1: data1 field of message
130 * @data2: data2 field of message
132 * Sends a generic XEMBED message to a particular window.
135 _gtk_xembed_send_message (GdkWindow *recipient,
136 XEmbedMessageType message,
142 XClientMessageEvent xclient;
147 g_return_if_fail (GDK_IS_WINDOW (recipient));
149 display = gdk_window_get_display (recipient);
150 GTK_NOTE (PLUGSOCKET,
151 g_message ("Sending %s", _gtk_xembed_message_name (message)));
153 memset (&xclient, 0, sizeof (xclient));
154 xclient.window = GDK_WINDOW_XID (recipient);
155 xclient.type = ClientMessage;
156 xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "_XEMBED");
158 xclient.data.l[0] = gtk_xembed_get_time ();
159 xclient.data.l[1] = message;
160 xclient.data.l[2] = detail;
161 xclient.data.l[3] = data1;
162 xclient.data.l[4] = data2;
164 gdk_error_trap_push ();
165 XSendEvent (GDK_WINDOW_XDISPLAY(recipient),
166 GDK_WINDOW_XID (recipient),
167 False, NoEventMask, (XEvent *)&xclient);
168 gdk_error_trap_pop_ignored ();
172 * _gtk_xembed_send_focus_message:
173 * @recipient: (allow-none): window to which to send the window, or %NULL
174 * in which case nothing will be sent
175 * @message: type of message
176 * @detail: detail field of message
178 * Sends a XEMBED message for moving the focus along the focus
179 * chain to a window. The flags field that these messages share
180 * will be correctly filled in.
183 _gtk_xembed_send_focus_message (GdkWindow *recipient,
184 XEmbedMessageType message,
192 g_return_if_fail (GDK_IS_WINDOW (recipient));
193 g_return_if_fail (message == XEMBED_FOCUS_IN ||
194 message == XEMBED_FOCUS_NEXT ||
195 message == XEMBED_FOCUS_PREV);
197 if (current_messages)
199 GtkXEmbedMessage *message = current_messages->data;
200 switch (message->message)
202 case XEMBED_FOCUS_IN:
203 case XEMBED_FOCUS_NEXT:
204 case XEMBED_FOCUS_PREV:
205 flags = message->data1 & XEMBED_FOCUS_WRAPAROUND;
212 _gtk_xembed_send_message (recipient, message, detail, flags, 0);
216 _gtk_xembed_message_name (XEmbedMessageType message)
222 #define CASE(x) case XEMBED_##x: return "XEMBED_"#x
223 CASE (EMBEDDED_NOTIFY);
224 CASE (WINDOW_ACTIVATE);
225 CASE (WINDOW_DEACTIVATE);
226 CASE (REQUEST_FOCUS);
236 CASE (GTK_UNGRAB_KEY);
239 snprintf (unk, 24, "UNKNOWN(%d)", message);