This is intended mainly for GNU/Linux distros who will remove GTK2 support in the near future.
245 lines
6.3 KiB
C
245 lines
6.3 KiB
C
/* GTK - The GIMP Toolkit
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* gtkxembed.c: Utilities for the XEMBED protocol
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* Copyright (C) 2001, 2003, Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <string.h>
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#include "gtkmain.h"
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#include "gtkprivate.h"
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#include "gtkxembed.h"
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#include "gtkalias.h"
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typedef struct _GtkXEmbedMessage GtkXEmbedMessage;
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struct _GtkXEmbedMessage
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{
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glong message;
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glong detail;
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glong data1;
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glong data2;
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guint32 time;
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};
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static GSList *current_messages;
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/**
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* _gtk_xembed_push_message:
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* @xevent: a XEvent
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*
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* Adds a client message to the stack of current XEMBED events.
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**/
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void
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_gtk_xembed_push_message (XEvent *xevent)
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{
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GtkXEmbedMessage *message = g_slice_new (GtkXEmbedMessage);
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message->time = xevent->xclient.data.l[0];
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message->message = xevent->xclient.data.l[1];
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message->detail = xevent->xclient.data.l[2];
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message->data1 = xevent->xclient.data.l[3];
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message->data2 = xevent->xclient.data.l[4];
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current_messages = g_slist_prepend (current_messages, message);
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}
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/**
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* _gtk_xembed_pop_message:
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*
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* Removes an event added with _gtk_xembed_push_message()
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**/
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void
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_gtk_xembed_pop_message (void)
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{
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GtkXEmbedMessage *message = current_messages->data;
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current_messages = g_slist_delete_link (current_messages, current_messages);
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g_slice_free (GtkXEmbedMessage, message);
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}
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/**
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* _gtk_xembed_set_focus_wrapped:
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*
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* Sets a flag indicating that the current focus sequence wrapped
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* around to the beginning of the ultimate toplevel.
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**/
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void
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_gtk_xembed_set_focus_wrapped (void)
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{
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GtkXEmbedMessage *message;
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g_return_if_fail (current_messages != NULL);
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message = current_messages->data;
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g_return_if_fail (message->message == XEMBED_FOCUS_PREV || message->message == XEMBED_FOCUS_NEXT);
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message->data1 |= XEMBED_FOCUS_WRAPAROUND;
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}
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/**
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* _gtk_xembed_get_focus_wrapped:
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*
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* Gets whether the current focus sequence has wrapped around
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* to the beginning of the ultimate toplevel.
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*
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* Return value: %TRUE if the focus sequence has wrapped around.
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**/
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gboolean
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_gtk_xembed_get_focus_wrapped (void)
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{
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GtkXEmbedMessage *message;
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g_return_val_if_fail (current_messages != NULL, FALSE);
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message = current_messages->data;
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return (message->data1 & XEMBED_FOCUS_WRAPAROUND) != 0;
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}
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static guint32
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gtk_xembed_get_time (void)
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{
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if (current_messages)
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{
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GtkXEmbedMessage *message = current_messages->data;
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return message->time;
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}
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else
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return gtk_get_current_event_time ();
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}
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/**
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* _gtk_xembed_send_message:
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* @recipient: (allow-none): window to which to send the window, or %NULL
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* in which case nothing will be sent
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* @message: type of message
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* @detail: detail field of message
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* @data1: data1 field of message
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* @data2: data2 field of message
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*
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* Sends a generic XEMBED message to a particular window.
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**/
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void
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_gtk_xembed_send_message (GdkWindow *recipient,
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XEmbedMessageType message,
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glong detail,
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glong data1,
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glong data2)
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{
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GdkDisplay *display;
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XClientMessageEvent xclient;
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if (!recipient)
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return;
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g_return_if_fail (GDK_IS_WINDOW (recipient));
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display = gdk_window_get_display (recipient);
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GTK_NOTE (PLUGSOCKET,
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g_message ("Sending %s", _gtk_xembed_message_name (message)));
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memset (&xclient, 0, sizeof (xclient));
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xclient.window = GDK_WINDOW_XWINDOW (recipient);
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xclient.type = ClientMessage;
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xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "_XEMBED");
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xclient.format = 32;
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xclient.data.l[0] = gtk_xembed_get_time ();
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xclient.data.l[1] = message;
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xclient.data.l[2] = detail;
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xclient.data.l[3] = data1;
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xclient.data.l[4] = data2;
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gdk_error_trap_push ();
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XSendEvent (GDK_WINDOW_XDISPLAY(recipient),
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GDK_WINDOW_XWINDOW (recipient),
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False, NoEventMask, (XEvent *)&xclient);
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gdk_display_sync (display);
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gdk_error_trap_pop ();
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}
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/**
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* _gtk_xembed_send_focus_message:
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* @recipient: (allow-none): window to which to send the window, or %NULL
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* in which case nothing will be sent
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* @message: type of message
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* @detail: detail field of message
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*
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* Sends a XEMBED message for moving the focus along the focus
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* chain to a window. The flags field that these messages share
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* will be correctly filled in.
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**/
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void
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_gtk_xembed_send_focus_message (GdkWindow *recipient,
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XEmbedMessageType message,
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glong detail)
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{
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gulong flags = 0;
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if (!recipient)
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return;
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g_return_if_fail (GDK_IS_WINDOW (recipient));
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g_return_if_fail (message == XEMBED_FOCUS_IN ||
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message == XEMBED_FOCUS_NEXT ||
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message == XEMBED_FOCUS_PREV);
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if (current_messages)
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{
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GtkXEmbedMessage *message = current_messages->data;
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switch (message->message)
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{
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case XEMBED_FOCUS_IN:
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case XEMBED_FOCUS_NEXT:
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case XEMBED_FOCUS_PREV:
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flags = message->data1 & XEMBED_FOCUS_WRAPAROUND;
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break;
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default:
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break;
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}
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}
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_gtk_xembed_send_message (recipient, message, detail, flags, 0);
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}
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const char *
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_gtk_xembed_message_name (XEmbedMessageType message)
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{
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static char unk[24];
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switch (message)
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{
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#define CASE(x) case XEMBED_##x: return "XEMBED_"#x
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CASE (EMBEDDED_NOTIFY);
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CASE (WINDOW_ACTIVATE);
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CASE (WINDOW_DEACTIVATE);
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CASE (REQUEST_FOCUS);
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CASE (FOCUS_IN);
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CASE (FOCUS_OUT);
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CASE (FOCUS_NEXT);
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CASE (FOCUS_PREV);
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CASE (GRAB_KEY);
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CASE (UNGRAB_KEY);
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CASE (MODALITY_ON);
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CASE (MODALITY_OFF);
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CASE (GTK_GRAB_KEY);
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CASE (GTK_UNGRAB_KEY);
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#undef CASE
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default:
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snprintf (unk, 24, "UNKNOWN(%d)", message);
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return unk;
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}
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}
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