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/* GTK - The GIMP Toolkit
* gtkxembed.c: Utilities for the XEMBED protocol
* Copyright (C) 2001, 2003, Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include "gtkmain.h"
#include "gtkprivate.h"
#include "gtkxembed.h"
#include "gtkdebug.h"
typedef struct _GtkXEmbedMessage GtkXEmbedMessage;
struct _GtkXEmbedMessage
{
glong message;
glong detail;
glong data1;
glong data2;
guint32 time;
};
static GSList *current_messages;
/**
* _gtk_xembed_push_message:
* @xevent: a XEvent
*
* Adds a client message to the stack of current XEMBED events.
**/
void
_gtk_xembed_push_message (XEvent *xevent)
{
GtkXEmbedMessage *message = g_slice_new (GtkXEmbedMessage);
message->time = xevent->xclient.data.l[0];
message->message = xevent->xclient.data.l[1];
message->detail = xevent->xclient.data.l[2];
message->data1 = xevent->xclient.data.l[3];
message->data2 = xevent->xclient.data.l[4];
current_messages = g_slist_prepend (current_messages, message);
}
/**
* _gtk_xembed_pop_message:
*
* Removes an event added with _gtk_xembed_push_message()
**/
void
_gtk_xembed_pop_message (void)
{
GtkXEmbedMessage *message = current_messages->data;
current_messages = g_slist_delete_link (current_messages, current_messages);
g_slice_free (GtkXEmbedMessage, message);
}
/**
* _gtk_xembed_set_focus_wrapped:
*
* Sets a flag indicating that the current focus sequence wrapped
* around to the beginning of the ultimate toplevel.
**/
void
_gtk_xembed_set_focus_wrapped (void)
{
GtkXEmbedMessage *message;
g_return_if_fail (current_messages != NULL);
message = current_messages->data;
g_return_if_fail (message->message == XEMBED_FOCUS_PREV || message->message == XEMBED_FOCUS_NEXT);
message->data1 |= XEMBED_FOCUS_WRAPAROUND;
}
/**
* _gtk_xembed_get_focus_wrapped:
*
* Gets whether the current focus sequence has wrapped around
* to the beginning of the ultimate toplevel.
*
* Returns: %TRUE if the focus sequence has wrapped around.
**/
gboolean
_gtk_xembed_get_focus_wrapped (void)
{
GtkXEmbedMessage *message;
g_return_val_if_fail (current_messages != NULL, FALSE);
message = current_messages->data;
return (message->data1 & XEMBED_FOCUS_WRAPAROUND) != 0;
}
static guint32
gtk_xembed_get_time (void)
{
if (current_messages)
{
GtkXEmbedMessage *message = current_messages->data;
return message->time;
}
else
return gtk_get_current_event_time ();
}
/**
* _gtk_xembed_send_message:
* @recipient: (allow-none): window to which to send the window, or %NULL
* in which case nothing will be sent
* @message: type of message
* @detail: detail field of message
* @data1: data1 field of message
* @data2: data2 field of message
*
* Sends a generic XEMBED message to a particular window.
**/
void
_gtk_xembed_send_message (GdkWindow *recipient,
XEmbedMessageType message,
glong detail,
glong data1,
glong data2)
{
GdkDisplay *display;
XClientMessageEvent xclient;
if (!recipient)
return;
g_return_if_fail (GDK_IS_WINDOW (recipient));
display = gdk_window_get_display (recipient);
GTK_NOTE (PLUGSOCKET,
g_message ("Sending %s", _gtk_xembed_message_name (message)));
memset (&xclient, 0, sizeof (xclient));
xclient.window = GDK_WINDOW_XID (recipient);
xclient.type = ClientMessage;
xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "_XEMBED");
xclient.format = 32;
xclient.data.l[0] = gtk_xembed_get_time ();
xclient.data.l[1] = message;
xclient.data.l[2] = detail;
xclient.data.l[3] = data1;
xclient.data.l[4] = data2;
gdk_error_trap_push ();
XSendEvent (GDK_WINDOW_XDISPLAY(recipient),
GDK_WINDOW_XID (recipient),
False, NoEventMask, (XEvent *)&xclient);
gdk_error_trap_pop_ignored ();
}
/**
* _gtk_xembed_send_focus_message:
* @recipient: (allow-none): window to which to send the window, or %NULL
* in which case nothing will be sent
* @message: type of message
* @detail: detail field of message
*
* Sends a XEMBED message for moving the focus along the focus
* chain to a window. The flags field that these messages share
* will be correctly filled in.
**/
void
_gtk_xembed_send_focus_message (GdkWindow *recipient,
XEmbedMessageType message,
glong detail)
{
gulong flags = 0;
if (!recipient)
return;
g_return_if_fail (GDK_IS_WINDOW (recipient));
g_return_if_fail (message == XEMBED_FOCUS_IN ||
message == XEMBED_FOCUS_NEXT ||
message == XEMBED_FOCUS_PREV);
if (current_messages)
{
GtkXEmbedMessage *message = current_messages->data;
switch (message->message)
{
case XEMBED_FOCUS_IN:
case XEMBED_FOCUS_NEXT:
case XEMBED_FOCUS_PREV:
flags = message->data1 & XEMBED_FOCUS_WRAPAROUND;
break;
default:
break;
}
}
_gtk_xembed_send_message (recipient, message, detail, flags, 0);
}
const char *
_gtk_xembed_message_name (XEmbedMessageType message)
{
static char unk[24];
switch (message)
{
#define CASE(x) case XEMBED_##x: return "XEMBED_"#x
CASE (EMBEDDED_NOTIFY);
CASE (WINDOW_ACTIVATE);
CASE (WINDOW_DEACTIVATE);
CASE (REQUEST_FOCUS);
CASE (FOCUS_IN);
CASE (FOCUS_OUT);
CASE (FOCUS_NEXT);
CASE (FOCUS_PREV);
CASE (GRAB_KEY);
CASE (UNGRAB_KEY);
CASE (MODALITY_ON);
CASE (MODALITY_OFF);
CASE (GTK_GRAB_KEY);
CASE (GTK_UNGRAB_KEY);
#undef CASE
default:
snprintf (unk, 24, "UNKNOWN(%d)", message);
return unk;
}
}
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