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gtk2/gtk/gtksocket.c
Owen Taylor c0f78ae00e Add a "is_focus" property indicating whether a widget is the focus widget 
Fri May 17 17:27:21 2002  Owen Taylor  <otaylor@redhat.com>

        * gtk/gtkwindow.c gtk/gtkwidget.c: Add a "is_focus"
        property indicating whether a widget is the focus
        widget within the toplevel.

        * gtk/gtkwindow.[ch]: Add "is_active" "has_toplevel_focus"
        properties to indicate (separately) the idea of
        being the part of the toplevel with the input focus
        and being the active widget. (Needed for full XEMBED
        compliance.)

        * gtk/gtkplug.c gtk/gtksocket.c: Update to work
        in terms of is_active/has_toplevel_focus, and thus
        handle the active/focused XEMBED distinction
        correctly.

        * gtk/gtkplug.c (gtk_plug_realize): Remove
        FOCUS_CHANGE_MASK, since we don't need it.

Fri May 17 18:07:34 2002  Owen Taylor  <otaylor@redhat.com>

        * gtk/gtksocket.c (gtk_socket_add_window): Send
        XEMBED_EMBEDDED_NOTIFY.

        * gtk/gtksocket.c: Assume windows without _XEMBED_INFO
        property want to be mapped, for better
        current-Qt compatibility.
2002-06-06 15:38:39 +00:00

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/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* 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, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* By Owen Taylor <otaylor@gtk.org> 98/4/4 */
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include <string.h>
#include "gdk/gdkkeysyms.h"
#include "gtkmain.h"
#include "gtkmarshalers.h"
#include "gtkwindow.h"
#include "gtkplug.h"
#include "gtkprivate.h"
#include "gtksignal.h"
#include "gtksocket.h"
#include "gtkdnd.h"
#include "x11/gdkx.h"
#include "xembed.h"
typedef struct _GtkSocketPrivate GtkSocketPrivate;
struct _GtkSocketPrivate
{
gint resize_count;
};
/* Forward declararations */
static void gtk_socket_class_init (GtkSocketClass *klass);
static void gtk_socket_init (GtkSocket *socket);
static void gtk_socket_finalize (GObject *object);
static void gtk_socket_notify (GObject *object,
GParamSpec *pspec);
static void gtk_socket_realize (GtkWidget *widget);
static void gtk_socket_unrealize (GtkWidget *widget);
static void gtk_socket_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_socket_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_socket_hierarchy_changed (GtkWidget *widget,
GtkWidget *old_toplevel);
static void gtk_socket_grab_notify (GtkWidget *widget,
gboolean was_grabbed);
static gboolean gtk_socket_key_press_event (GtkWidget *widget,
GdkEventKey *event);
static void gtk_socket_claim_focus (GtkSocket *socket,
gboolean send_event);
static void gtk_socket_send_configure_event (GtkSocket *socket);
static gboolean gtk_socket_focus (GtkWidget *widget,
GtkDirectionType direction);
static void gtk_socket_remove (GtkContainer *container,
GtkWidget *widget);
static void gtk_socket_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data);
static void gtk_socket_add_window (GtkSocket *socket,
GdkNativeWindow xid,
gboolean need_reparent);
static GdkFilterReturn gtk_socket_filter_func (GdkXEvent *gdk_xevent,
GdkEvent *event,
gpointer data);
static void send_xembed_message (GtkSocket *socket,
glong message,
glong detail,
glong data1,
glong data2,
guint32 time);
static gboolean xembed_get_info (GdkWindow *gdk_window,
unsigned long *version,
unsigned long *flags);
/* From Tk */
#define EMBEDDED_APP_WANTS_FOCUS NotifyNormal+20
/* Local data */
enum {
PLUG_ADDED,
PLUG_REMOVED,
LAST_SIGNAL
};
static guint socket_signals[LAST_SIGNAL] = { 0 };
static GtkWidgetClass *parent_class = NULL;
GtkSocketPrivate *
gtk_socket_get_private (GtkSocket *socket)
{
GtkSocketPrivate *private;
static GQuark private_quark = 0;
if (!private_quark)
private_quark = g_quark_from_static_string ("gtk-socket-private");
private = g_object_get_qdata (G_OBJECT (socket), private_quark);
if (!private)
{
private = g_new0 (GtkSocketPrivate, 1);
private->resize_count = 0;
g_object_set_qdata_full (G_OBJECT (socket), private_quark,
private, (GDestroyNotify) g_free);
}
return private;
}
GtkType
gtk_socket_get_type (void)
{
static GtkType socket_type = 0;
if (!socket_type)
{
static const GTypeInfo socket_info =
{
sizeof (GtkSocketClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_socket_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkSocket),
16, /* n_preallocs */
(GInstanceInitFunc) gtk_socket_init,
};
socket_type = g_type_register_static (GTK_TYPE_CONTAINER, "GtkSocket", &socket_info, 0);
}
return socket_type;
}
static void
gtk_socket_finalize (GObject *object)
{
GtkSocket *socket = GTK_SOCKET (object);
g_object_unref (socket->accel_group);
socket->accel_group = NULL;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gtk_socket_class_init (GtkSocketClass *class)
{
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
GObjectClass *gobject_class;
gobject_class = (GObjectClass *) class;
widget_class = (GtkWidgetClass*) class;
container_class = (GtkContainerClass*) class;
parent_class = gtk_type_class (GTK_TYPE_CONTAINER);
gobject_class->finalize = gtk_socket_finalize;
gobject_class->notify = gtk_socket_notify;
widget_class->realize = gtk_socket_realize;
widget_class->unrealize = gtk_socket_unrealize;
widget_class->size_request = gtk_socket_size_request;
widget_class->size_allocate = gtk_socket_size_allocate;
widget_class->hierarchy_changed = gtk_socket_hierarchy_changed;
widget_class->grab_notify = gtk_socket_grab_notify;
widget_class->key_press_event = gtk_socket_key_press_event;
widget_class->focus = gtk_socket_focus;
container_class->remove = gtk_socket_remove;
container_class->forall = gtk_socket_forall;
socket_signals[PLUG_ADDED] =
g_signal_new ("plug_added",
G_OBJECT_CLASS_TYPE (class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkSocketClass, plug_added),
NULL, NULL,
_gtk_marshal_VOID__VOID,
GTK_TYPE_NONE, 0);
socket_signals[PLUG_REMOVED] =
g_signal_new ("plug_removed",
G_OBJECT_CLASS_TYPE (class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkSocketClass, plug_removed),
_gtk_boolean_handled_accumulator, NULL,
_gtk_marshal_BOOLEAN__VOID,
G_TYPE_BOOLEAN, 0);
}
static void
gtk_socket_init (GtkSocket *socket)
{
socket->request_width = 0;
socket->request_height = 0;
socket->current_width = 0;
socket->current_height = 0;
socket->plug_window = NULL;
socket->plug_widget = NULL;
socket->focus_in = FALSE;
socket->have_size = FALSE;
socket->need_map = FALSE;
socket->active = FALSE;
socket->accel_group = gtk_accel_group_new ();
g_object_set_data (G_OBJECT (socket->accel_group), "gtk-socket", socket);
}
/**
* gtk_socket_new:
*
* Create a new empty #GtkSocket.
*
* Return value: the new #GtkSocket.
**/
GtkWidget*
gtk_socket_new (void)
{
GtkSocket *socket;
socket = g_object_new (GTK_TYPE_SOCKET, NULL);
return GTK_WIDGET (socket);
}
/**
* gtk_socket_steal:
* @socket: a #GtkSocket
* @wid: the window ID of an existing toplevel window.
*
* Reparents a pre-existing toplevel window into a #GtkSocket. This is
* meant to embed clients that do not know about embedding into a
* #GtkSocket, however doing so is inherently unreliable, and using
* this function is not recommended.
*
* The #GtkSocket must have already be added into a toplevel window
* before you can make this call.
**/
void
gtk_socket_steal (GtkSocket *socket, GdkNativeWindow wid)
{
g_return_if_fail (GTK_IS_SOCKET (socket));
g_return_if_fail (GTK_WIDGET_ANCHORED (socket));
if (!GTK_WIDGET_REALIZED (socket))
gtk_widget_realize (GTK_WIDGET (socket));
gtk_socket_add_window (socket, wid, TRUE);
}
/**
* gtk_socket_add_id:
* @socket: a #GtkSocket
* @window_id: the window ID of a client participating in the XEMBED protocol.
*
* Adds an XEMBED client, such as a #GtkPlug, to the #GtkSocket. The
* client may be in the same process or in a different process.
*
* To embed a #GtkPlug in a #GtkSocket, you can either create the
* #GtkPlug with <literal>gtk_plug_new (0)</literal>, call
* gtk_plug_get_id() to get the window ID of the plug, and then pass that to the
* gtk_socket_add_id(), or you can call gtk_socket_get_id() to get the
* window ID for the socket, and call gtk_plug_new() passing in that
* ID.
*
* The #GtkSocket must have already be added into a toplevel window
* before you can make this call.
**/
void
gtk_socket_add_id (GtkSocket *socket, GdkNativeWindow window_id)
{
g_return_if_fail (GTK_IS_SOCKET (socket));
g_return_if_fail (GTK_WIDGET_ANCHORED (socket));
if (!GTK_WIDGET_REALIZED (socket))
gtk_widget_realize (GTK_WIDGET (socket));
gtk_socket_add_window (socket, window_id, TRUE);
}
/**
* gtk_socket_get_id:
* @socket: a #GtkSocket.
*
* Gets the window ID of a #GtkSocket widget, which can then
* be used to create a client embedded inside the socket, for
* instance with gtk_plug_new().
*
* The #GtkSocket must have already be added into a toplevel window
* before you can make this call.
*
* Return value: the window ID for the socket
**/
GdkNativeWindow
gtk_socket_get_id (GtkSocket *socket)
{
g_return_val_if_fail (GTK_IS_SOCKET (socket), 0);
g_return_val_if_fail (GTK_WIDGET_ANCHORED (socket), 0);
if (!GTK_WIDGET_REALIZED (socket))
gtk_widget_realize (GTK_WIDGET (socket));
return GDK_WINDOW_XWINDOW (GTK_WIDGET (socket)->window);
}
static void
gtk_socket_realize (GtkWidget *widget)
{
GtkSocket *socket;
GdkWindowAttr attributes;
gint attributes_mask;
XWindowAttributes xattrs;
g_return_if_fail (GTK_IS_SOCKET (widget));
socket = GTK_SOCKET (widget);
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = widget->allocation.x;
attributes.y = widget->allocation.y;
attributes.width = widget->allocation.width;
attributes.height = widget->allocation.height;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = GDK_FOCUS_CHANGE_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
&attributes, attributes_mask);
gdk_window_set_user_data (widget->window, socket);
widget->style = gtk_style_attach (widget->style, widget->window);
gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
XGetWindowAttributes (GDK_WINDOW_XDISPLAY (widget->window),
GDK_WINDOW_XWINDOW (widget->window),
&xattrs);
XSelectInput (GDK_WINDOW_XDISPLAY (widget->window),
GDK_WINDOW_XWINDOW (widget->window),
xattrs.your_event_mask |
SubstructureNotifyMask | SubstructureRedirectMask);
gdk_window_add_filter (widget->window, gtk_socket_filter_func, widget);
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
/* We sync here so that we make sure that if the XID for
* our window is passed to another application, SubstructureRedirectMask
* will be set by the time the other app creates its window.
*/
gdk_display_sync (gtk_widget_get_display (widget));
}
static void
gtk_socket_end_embedding (GtkSocket *socket)
{
GtkSocketPrivate *private = gtk_socket_get_private (socket);
GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (socket));
gint i;
if (toplevel && GTK_IS_WINDOW (toplevel))
gtk_window_remove_embedded_xid (GTK_WINDOW (toplevel),
GDK_WINDOW_XWINDOW (socket->plug_window));
g_object_unref (socket->plug_window);
socket->plug_window = NULL;
private->resize_count = 0;
/* Remove from end to avoid indexes shifting. This is evil */
for (i = socket->accel_group->n_accels - 1; i >= 0; i--)
{
GtkAccelGroupEntry *accel_entry = &socket->accel_group->priv_accels[i];
gtk_accel_group_disconnect (socket->accel_group, accel_entry->closure);
}
}
static void
gtk_socket_unrealize (GtkWidget *widget)
{
GtkSocket *socket = GTK_SOCKET (widget);
GTK_WIDGET_UNSET_FLAGS (widget, GTK_REALIZED);
if (socket->plug_widget)
{
_gtk_plug_remove_from_socket (GTK_PLUG (socket->plug_widget), socket);
}
else if (socket->plug_window)
{
gtk_socket_end_embedding (socket);
}
if (GTK_WIDGET_CLASS (parent_class)->unrealize)
(* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
}
static void
gtk_socket_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkSocket *socket = GTK_SOCKET (widget);
if (socket->plug_widget)
{
gtk_widget_size_request (socket->plug_widget, requisition);
}
else
{
if (socket->is_mapped && !socket->have_size && socket->plug_window)
{
XSizeHints hints;
long supplied;
gdk_error_trap_push ();
socket->request_width = 1;
socket->request_height = 1;
if (XGetWMNormalHints (GDK_WINDOW_XDISPLAY (socket->plug_window),
GDK_WINDOW_XWINDOW (socket->plug_window),
&hints, &supplied))
{
if (hints.flags & PMinSize)
{
socket->request_width = hints.min_width;
socket->request_height = hints.min_height;
}
else if (hints.flags & PBaseSize)
{
socket->request_width = hints.base_width;
socket->request_height = hints.base_height;
}
}
socket->have_size = TRUE;
gdk_error_trap_pop ();
}
if (socket->is_mapped && socket->have_size)
{
requisition->width = MAX (socket->request_width, 1);
requisition->height = MAX (socket->request_height, 1);
}
else
{
requisition->width = 1;
requisition->height = 1;
}
}
}
static void
gtk_socket_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkSocket *socket;
g_return_if_fail (GTK_IS_SOCKET (widget));
g_return_if_fail (allocation != NULL);
socket = GTK_SOCKET (widget);
widget->allocation = *allocation;
if (GTK_WIDGET_REALIZED (widget))
{
gdk_window_move_resize (widget->window,
allocation->x, allocation->y,
allocation->width, allocation->height);
if (socket->plug_widget)
{
GtkAllocation child_allocation;
child_allocation.x = 0;
child_allocation.y = 0;
child_allocation.width = allocation->width;
child_allocation.height = allocation->height;
gtk_widget_size_allocate (socket->plug_widget, &child_allocation);
}
else if (socket->plug_window)
{
GtkSocketPrivate *private = gtk_socket_get_private (socket);
gdk_error_trap_push ();
if (allocation->width != socket->current_width ||
allocation->height != socket->current_height)
{
gdk_window_move_resize (socket->plug_window,
0, 0,
allocation->width, allocation->height);
if (private->resize_count)
private->resize_count--;
GTK_NOTE(PLUGSOCKET,
g_message ("GtkSocket - allocated: %d %d",
allocation->width, allocation->height));
socket->current_width = allocation->width;
socket->current_height = allocation->height;
}
if (socket->need_map)
{
gdk_window_show (socket->plug_window);
socket->need_map = FALSE;
}
while (private->resize_count)
{
gtk_socket_send_configure_event (socket);
private->resize_count--;
GTK_NOTE(PLUGSOCKET,
g_message ("GtkSocket - sending synthetic configure: %d %d",
allocation->width, allocation->height));
}
gdk_display_sync (gtk_widget_get_display (widget));
gdk_error_trap_pop ();
}
}
}
typedef struct
{
guint accel_key;
GdkModifierType accel_mods;
} GrabbedKey;
static void
activate_key (GtkAccelGroup *accel_group,
GrabbedKey *grabbed_key)
{
XEvent xevent;
GdkEvent *gdk_event = gtk_get_current_event ();
GtkSocket *socket = g_object_get_data (G_OBJECT (accel_group), "gtk-socket");
GdkScreen *screen = gdk_drawable_get_screen (socket->plug_window);
if (gdk_event && gdk_event->type == GDK_KEY_PRESS && socket->plug_window)
{
xevent.xkey.type = KeyPress;
xevent.xkey.window = GDK_WINDOW_XWINDOW (socket->plug_window);
xevent.xkey.root = GDK_WINDOW_XWINDOW (gdk_screen_get_root_window (screen));
xevent.xkey.subwindow = None;
xevent.xkey.time = gdk_event->key.time;
xevent.xkey.x = 0;
xevent.xkey.y = 0;
xevent.xkey.x_root = 0;
xevent.xkey.y_root = 0;
xevent.xkey.state = gdk_event->key.state;
xevent.xkey.keycode = gdk_event->key.hardware_keycode;
xevent.xkey.same_screen = True;
gdk_error_trap_push ();
XSendEvent (GDK_WINDOW_XDISPLAY (socket->plug_window),
GDK_WINDOW_XWINDOW (socket->plug_window),
False, KeyPressMask, &xevent);
gdk_display_sync (gdk_screen_get_display (screen));
gdk_error_trap_pop ();
}
if (gdk_event)
gdk_event_free (gdk_event);
}
static gboolean
find_accel_key (GtkAccelKey *key,
GClosure *closure,
gpointer data)
{
GrabbedKey *grabbed_key = data;
return (key->accel_key == grabbed_key->accel_key &&
key->accel_mods == grabbed_key->accel_mods);
}
static void
add_grabbed_key (GtkSocket *socket,
guint keyval,
GdkModifierType modifiers)
{
GClosure *closure;
GrabbedKey *grabbed_key;
grabbed_key = g_new (GrabbedKey, 1);
grabbed_key->accel_key = keyval;
grabbed_key->accel_mods = modifiers;
if (gtk_accel_group_find (socket->accel_group,
find_accel_key,
&grabbed_key))
{
g_warning ("GtkSocket: request to add already present grabbed key %u,%#x\n",
keyval, modifiers);
g_free (grabbed_key);
return;
}
closure = g_cclosure_new (G_CALLBACK (activate_key), grabbed_key, (GClosureNotify)g_free);
gtk_accel_group_connect (socket->accel_group, keyval, modifiers, GTK_ACCEL_LOCKED,
closure);
}
static void
remove_grabbed_key (GtkSocket *socket,
guint keyval,
GdkModifierType modifiers)
{
gint i;
for (i = 0; i < socket->accel_group->n_accels; i++)
{
GtkAccelGroupEntry *accel_entry = &socket->accel_group->priv_accels[i];
if (accel_entry->key.accel_key == keyval &&
accel_entry->key.accel_mods == modifiers)
{
gtk_accel_group_disconnect (socket->accel_group,
accel_entry->closure);
return;
}
}
g_warning ("GtkSocket: request to remove non-present grabbed key %u,%#x\n",
keyval, modifiers);
}
static void
socket_update_focus_in (GtkSocket *socket)
{
gboolean focus_in = FALSE;
if (socket->plug_window)
{
GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (socket));
if (GTK_WIDGET_TOPLEVEL (toplevel) &&
GTK_WINDOW (toplevel)->has_toplevel_focus &&
gtk_widget_is_focus (GTK_WIDGET (socket)))
focus_in = TRUE;
}
if (focus_in != socket->focus_in)
{
socket->focus_in = focus_in;
if (focus_in)
{
send_xembed_message (socket, XEMBED_FOCUS_IN, XEMBED_FOCUS_CURRENT, 0, 0,
gtk_get_current_event_time ());
}
else
{
send_xembed_message (socket, XEMBED_FOCUS_OUT, 0, 0, 0,
gtk_get_current_event_time ());
}
}
}
static void
socket_update_active (GtkSocket *socket)
{
gboolean active = FALSE;
if (socket->plug_window)
{
GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (socket));
if (GTK_WIDGET_TOPLEVEL (toplevel) &&
GTK_WINDOW (toplevel)->is_active)
active = TRUE;
}
if (active != socket->active)
{
socket->active = active;
send_xembed_message (socket,
active ? XEMBED_WINDOW_ACTIVATE : XEMBED_WINDOW_DEACTIVATE,
0, 0, 0,
gtk_get_current_event_time ());
}
}
static void
gtk_socket_hierarchy_changed (GtkWidget *widget,
GtkWidget *old_toplevel)
{
GtkSocket *socket = GTK_SOCKET (widget);
GtkWidget *toplevel = gtk_widget_get_toplevel (widget);
if (toplevel && !GTK_IS_WINDOW (toplevel))
toplevel = NULL;
if (toplevel != socket->toplevel)
{
if (socket->toplevel)
{
gtk_window_remove_accel_group (GTK_WINDOW (socket->toplevel), socket->accel_group);
g_signal_handlers_disconnect_by_func (socket->toplevel,
(gpointer) socket_update_focus_in, socket);
g_signal_handlers_disconnect_by_func (socket->toplevel,
(gpointer) socket_update_active, socket);
}
socket->toplevel = toplevel;
if (toplevel)
{
gtk_window_add_accel_group (GTK_WINDOW (socket->toplevel), socket->accel_group);
g_signal_connect_swapped (socket->toplevel, "notify::has_toplevel_focus",
G_CALLBACK (socket_update_focus_in), socket);
g_signal_connect_swapped (socket->toplevel, "notify::is_active",
G_CALLBACK (socket_update_active), socket);
}
socket_update_focus_in (socket);
socket_update_active (socket);
}
}
static void
gtk_socket_grab_notify (GtkWidget *widget,
gboolean was_grabbed)
{
GtkSocket *socket = GTK_SOCKET (widget);
if (!socket->same_app)
send_xembed_message (GTK_SOCKET (widget),
was_grabbed ? XEMBED_MODALITY_OFF : XEMBED_MODALITY_ON,
0, 0, 0, gtk_get_current_event_time ());
}
static gboolean
gtk_socket_key_press_event (GtkWidget *widget,
GdkEventKey *event)
{
GtkSocket *socket = GTK_SOCKET (widget);
if (GTK_WIDGET_HAS_FOCUS (socket) && socket->plug_window && !socket->plug_widget)
{
GdkScreen *screen = gdk_drawable_get_screen (socket->plug_window);
XEvent xevent;
xevent.xkey.type = KeyPress;
xevent.xkey.window = GDK_WINDOW_XWINDOW (socket->plug_window);
xevent.xkey.root = GDK_WINDOW_XWINDOW (gdk_screen_get_root_window (screen));
xevent.xkey.time = event->time;
/* FIXME, the following might cause problems for non-GTK apps */
xevent.xkey.x = 0;
xevent.xkey.y = 0;
xevent.xkey.x_root = 0;
xevent.xkey.y_root = 0;
xevent.xkey.state = event->state;
xevent.xkey.keycode = event->hardware_keycode;
xevent.xkey.same_screen = TRUE; /* FIXME ? */
gdk_error_trap_push ();
XSendEvent (GDK_WINDOW_XDISPLAY (socket->plug_window),
GDK_WINDOW_XWINDOW (socket->plug_window),
False, NoEventMask, &xevent);
gdk_display_sync (gtk_widget_get_display (widget));
gdk_error_trap_pop ();
return TRUE;
}
else
return FALSE;
}
static void
gtk_socket_notify (GObject *object,
GParamSpec *pspec)
{
if (!strcmp (pspec->name, "is_focus"))
return;
socket_update_focus_in (GTK_SOCKET (object));
}
static void
gtk_socket_claim_focus (GtkSocket *socket,
gboolean send_event)
{
if (!send_event)
socket->focus_in = TRUE; /* Otherwise, our notify handler will send FOCUS_IN */
/* Oh, the trickery... */
GTK_WIDGET_SET_FLAGS (socket, GTK_CAN_FOCUS);
gtk_widget_grab_focus (GTK_WIDGET (socket));
GTK_WIDGET_UNSET_FLAGS (socket, GTK_CAN_FOCUS);
}
static gboolean
gtk_socket_focus (GtkWidget *widget, GtkDirectionType direction)
{
GtkSocket *socket;
gint detail = -1;
g_return_val_if_fail (GTK_IS_SOCKET (widget), FALSE);
socket = GTK_SOCKET (widget);
if (socket->plug_widget)
return gtk_widget_child_focus (socket->plug_widget, direction);
if (!GTK_WIDGET_HAS_FOCUS (widget))
{
switch (direction)
{
case GTK_DIR_UP:
case GTK_DIR_LEFT:
case GTK_DIR_TAB_BACKWARD:
detail = XEMBED_FOCUS_LAST;
break;
case GTK_DIR_DOWN:
case GTK_DIR_RIGHT:
case GTK_DIR_TAB_FORWARD:
detail = XEMBED_FOCUS_FIRST;
break;
}
send_xembed_message (socket, XEMBED_FOCUS_IN, detail, 0, 0,
gtk_get_current_event_time ());
gtk_socket_claim_focus (socket, FALSE);
return TRUE;
}
else
return FALSE;
}
static void
gtk_socket_remove (GtkContainer *container,
GtkWidget *child)
{
GtkSocket *socket = GTK_SOCKET (container);
g_return_if_fail (child == socket->plug_widget);
_gtk_plug_remove_from_socket (GTK_PLUG (socket->plug_widget), socket);
}
static void
gtk_socket_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GtkSocket *socket = GTK_SOCKET (container);
if (socket->plug_widget)
(* callback) (socket->plug_widget, callback_data);
}
static void
gtk_socket_send_configure_event (GtkSocket *socket)
{
XEvent event;
gint x, y;
g_return_if_fail (socket->plug_window != NULL);
event.xconfigure.type = ConfigureNotify;
event.xconfigure.event = GDK_WINDOW_XWINDOW (socket->plug_window);
event.xconfigure.window = GDK_WINDOW_XWINDOW (socket->plug_window);
/* The ICCCM says that synthetic events should have root relative
* coordinates. We still aren't really ICCCM compliant, since
* we don't send events when the real toplevel is moved.
*/
gdk_error_trap_push ();
gdk_window_get_origin (socket->plug_window, &x, &y);
gdk_error_trap_pop ();
event.xconfigure.x = x;
event.xconfigure.y = y;
event.xconfigure.width = GTK_WIDGET(socket)->allocation.width;
event.xconfigure.height = GTK_WIDGET(socket)->allocation.height;
event.xconfigure.border_width = 0;
event.xconfigure.above = None;
event.xconfigure.override_redirect = False;
gdk_error_trap_push ();
XSendEvent (GDK_WINDOW_XDISPLAY (socket->plug_window),
GDK_WINDOW_XWINDOW (socket->plug_window),
False, NoEventMask, &event);
gdk_display_sync (gtk_widget_get_display (GTK_WIDGET (socket)));
gdk_error_trap_pop ();
}
static void
gtk_socket_add_window (GtkSocket *socket,
GdkNativeWindow xid,
gboolean need_reparent)
{
GtkWidget *widget = GTK_WIDGET (socket);
GdkDisplay *display = gtk_widget_get_display (widget);
gpointer user_data = NULL;
socket->plug_window = gdk_window_lookup_for_display (display, xid);
if (socket->plug_window)
{
g_object_ref (socket->plug_window);
gdk_window_get_user_data (socket->plug_window, &user_data);
}
if (user_data) /* A widget's window in this process */
{
GtkWidget *child_widget = user_data;
if (!GTK_IS_PLUG (child_widget))
{
g_warning (G_STRLOC "Can't add non-GtkPlug to GtkSocket");
socket->plug_window = NULL;
gdk_error_trap_pop ();
return;
}
_gtk_plug_add_to_socket (GTK_PLUG (child_widget), socket);
}
else /* A foreign window */
{
GtkWidget *toplevel;
GdkDragProtocol protocol;
unsigned long version;
unsigned long flags;
gdk_error_trap_push ();
if (!socket->plug_window)
{
socket->plug_window = gdk_window_foreign_new_for_display (display, xid);
if (!socket->plug_window) /* was deleted before we could get it */
{
gdk_error_trap_pop ();
return;
}
}
XSelectInput (GDK_DISPLAY_XDISPLAY (display),
GDK_WINDOW_XWINDOW (socket->plug_window),
StructureNotifyMask | PropertyChangeMask);
if (gdk_error_trap_pop ())
{
gdk_window_unref (socket->plug_window);
socket->plug_window = NULL;
return;
}
/* OK, we now will reliably get destroy notification on socket->plug_window */
gdk_error_trap_push ();
if (need_reparent)
{
gdk_window_hide (socket->plug_window); /* Shouldn't actually be necessary for XEMBED, but just in case */
gdk_window_reparent (socket->plug_window, widget->window, 0, 0);
}
socket->have_size = FALSE;
socket->xembed_version = -1;
if (xembed_get_info (socket->plug_window, &version, &flags))
{
socket->xembed_version = version;
socket->is_mapped = (flags & XEMBED_MAPPED) != 0;
}
else
{
/* FIXME, we should probably actually check the state before we started */
socket->is_mapped = TRUE;
}
socket->need_map = socket->is_mapped;
if (gdk_drag_get_protocol_for_display (display, xid, &protocol))
gtk_drag_dest_set_proxy (GTK_WIDGET (socket), socket->plug_window,
protocol, TRUE);
gdk_display_sync (display);
gdk_error_trap_pop ();
gdk_window_add_filter (socket->plug_window,
gtk_socket_filter_func, socket);
/* Add a pointer to the socket on our toplevel window */
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (socket));
if (toplevel && GTK_IS_WINDOW (toplevel))
gtk_window_add_embedded_xid (GTK_WINDOW (toplevel), xid);
send_xembed_message (socket, XEMBED_EMBEDDED_NOTIFY, 0, 0, 0,
gtk_get_current_event_time ());
socket_update_active (socket);
socket_update_focus_in (socket);
gtk_widget_queue_resize (GTK_WIDGET (socket));
}
if (socket->plug_window)
g_signal_emit (G_OBJECT (socket), socket_signals[PLUG_ADDED], 0);
}
static void
send_xembed_message (GtkSocket *socket,
glong message,
glong detail,
glong data1,
glong data2,
guint32 time)
{
GTK_NOTE(PLUGSOCKET,
g_message ("GtkSocket: Sending XEMBED message of type %ld", message));
if (socket->plug_window)
{
GdkDisplay *display = gtk_widget_get_display (GTK_WIDGET (socket));
XEvent xevent;
xevent.xclient.window = GDK_WINDOW_XWINDOW (socket->plug_window);
xevent.xclient.type = ClientMessage;
xevent.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "_XEMBED");
xevent.xclient.format = 32;
xevent.xclient.data.l[0] = time;
xevent.xclient.data.l[1] = message;
xevent.xclient.data.l[2] = detail;
xevent.xclient.data.l[3] = data1;
xevent.xclient.data.l[4] = data2;
gdk_error_trap_push ();
XSendEvent (GDK_DISPLAY_XDISPLAY (display),
GDK_WINDOW_XWINDOW (socket->plug_window),
False, NoEventMask, &xevent);
gdk_display_sync (display);
gdk_error_trap_pop ();
}
}
static gboolean
xembed_get_info (GdkWindow *window,
unsigned long *version,
unsigned long *flags)
{
GdkDisplay *display = gdk_drawable_get_display (window);
Atom xembed_info_atom = gdk_x11_get_xatom_by_name_for_display (display, "_XEMBED_INFO");
Atom type;
int format;
unsigned long nitems, bytes_after;
unsigned char *data;
unsigned long *data_long;
int status;
gdk_error_trap_push();
status = XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display),
GDK_WINDOW_XWINDOW (window),
xembed_info_atom,
0, 2, False,
xembed_info_atom, &type, &format,
&nitems, &bytes_after, &data);
gdk_error_trap_pop();
if (status != Success)
return FALSE; /* Window vanished? */
if (type == None) /* No info property */
return FALSE;
if (type != xembed_info_atom)
{
g_warning ("_XEMBED_INFO property has wrong type\n");
return FALSE;
}
if (nitems < 2)
{
g_warning ("_XEMBED_INFO too short\n");
XFree (data);
return FALSE;
}
data_long = (unsigned long *)data;
if (version)
*version = data_long[0];
if (flags)
*flags = data_long[1] & XEMBED_MAPPED;
XFree (data);
return TRUE;
}
static void
handle_xembed_message (GtkSocket *socket,
glong message,
glong detail,
glong data1,
glong data2,
guint32 time)
{
GTK_NOTE (PLUGSOCKET,
g_message ("GtkSocket: Message of type %ld received", message));
switch (message)
{
case XEMBED_EMBEDDED_NOTIFY:
case XEMBED_WINDOW_ACTIVATE:
case XEMBED_WINDOW_DEACTIVATE:
case XEMBED_MODALITY_ON:
case XEMBED_MODALITY_OFF:
case XEMBED_FOCUS_IN:
case XEMBED_FOCUS_OUT:
g_warning ("GtkSocket: Invalid _XEMBED message of type %ld received", message);
break;
case XEMBED_REQUEST_FOCUS:
gtk_socket_claim_focus (socket, TRUE);
break;
case XEMBED_FOCUS_NEXT:
case XEMBED_FOCUS_PREV:
{
GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (socket));
if (toplevel)
{
gtk_widget_child_focus (toplevel,
(message == XEMBED_FOCUS_NEXT ?
GTK_DIR_TAB_FORWARD : GTK_DIR_TAB_BACKWARD));
}
break;
}
case XEMBED_GTK_GRAB_KEY:
add_grabbed_key (socket, data1, data2);
break;
case XEMBED_GTK_UNGRAB_KEY:
remove_grabbed_key (socket, data1, data2);
break;
case XEMBED_GRAB_KEY:
case XEMBED_UNGRAB_KEY:
break;
default:
GTK_NOTE (PLUGSOCKET,
g_message ("GtkSocket: Ignoring unknown _XEMBED message of type %ld", message));
break;
}
}
static void
map_request (GtkSocket *socket)
{
if (!socket->is_mapped)
{
socket->is_mapped = TRUE;
socket->need_map = TRUE;
gtk_widget_queue_resize (GTK_WIDGET (socket));
}
}
static void
unmap_notify (GtkSocket *socket)
{
if (socket->is_mapped)
{
socket->is_mapped = FALSE;
gtk_widget_queue_resize (GTK_WIDGET (socket));
}
}
static GdkFilterReturn
gtk_socket_filter_func (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
{
GtkSocket *socket;
GtkWidget *widget;
GdkDisplay *display;
XEvent *xevent;
GdkFilterReturn return_val;
socket = GTK_SOCKET (data);
widget = GTK_WIDGET (socket);
xevent = (XEvent *)gdk_xevent;
display = gdk_drawable_get_display (event->any.window);
return_val = GDK_FILTER_CONTINUE;
if (socket->plug_widget)
return return_val;
switch (xevent->type)
{
case ClientMessage:
if (xevent->xclient.message_type == gdk_x11_get_xatom_by_name_for_display (display, "_XEMBED"))
{
handle_xembed_message (socket,
xevent->xclient.data.l[1],
xevent->xclient.data.l[2],
xevent->xclient.data.l[3],
xevent->xclient.data.l[4],
xevent->xclient.data.l[0]);
return_val = GDK_FILTER_REMOVE;
}
break;
case CreateNotify:
{
XCreateWindowEvent *xcwe = &xevent->xcreatewindow;
if (!socket->plug_window)
{
gtk_socket_add_window (socket, xcwe->window, FALSE);
if (socket->plug_window)
{
GTK_NOTE(PLUGSOCKET,
g_message ("GtkSocket - window created"));
}
}
return_val = GDK_FILTER_REMOVE;
break;
}
case ConfigureRequest:
{
XConfigureRequestEvent *xcre = &xevent->xconfigurerequest;
if (!socket->plug_window)
gtk_socket_add_window (socket, xcre->window, FALSE);
if (socket->plug_window)
{
GtkSocketPrivate *private = gtk_socket_get_private (socket);
if (xcre->value_mask & (CWWidth | CWHeight))
{
GTK_NOTE(PLUGSOCKET,
g_message ("GtkSocket - configure request: %d %d",
socket->request_width,
socket->request_height));
private->resize_count++;
gtk_widget_queue_resize (widget);
}
else if (xcre->value_mask & (CWX | CWY))
{
gtk_socket_send_configure_event (socket);
}
/* Ignore stacking requests. */
return_val = GDK_FILTER_REMOVE;
}
break;
}
case DestroyNotify:
{
XDestroyWindowEvent *xdwe = &xevent->xdestroywindow;
/* Note that we get destroy notifies both from SubstructureNotify on
* our window and StructureNotify on socket->plug_window
*/
if (socket->plug_window && (xdwe->window == GDK_WINDOW_XWINDOW (socket->plug_window)))
{
gboolean result;
GTK_NOTE(PLUGSOCKET,
g_message ("GtkSocket - destroy notify"));
gdk_window_destroy_notify (socket->plug_window);
gtk_socket_end_embedding (socket);
g_object_ref (widget);
g_signal_emit (G_OBJECT (widget), socket_signals[PLUG_REMOVED], 0, &result);
if (!result)
gtk_widget_destroy (widget);
g_object_unref (widget);
return_val = GDK_FILTER_REMOVE;
}
break;
}
case FocusIn:
if (xevent->xfocus.mode == EMBEDDED_APP_WANTS_FOCUS)
{
gtk_socket_claim_focus (socket, TRUE);
}
return_val = GDK_FILTER_REMOVE;
break;
case FocusOut:
return_val = GDK_FILTER_REMOVE;
break;
case MapRequest:
if (!socket->plug_window)
gtk_socket_add_window (socket, xevent->xmaprequest.window, FALSE);
if (socket->plug_window)
{
GTK_NOTE(PLUGSOCKET,
g_message ("GtkSocket - Map Request"));
map_request (socket);
return_val = GDK_FILTER_REMOVE;
}
break;
case PropertyNotify:
if (socket->plug_window &&
xevent->xproperty.window == GDK_WINDOW_XWINDOW (socket->plug_window))
{
GdkDragProtocol protocol;
if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "WM_NORMAL_HINTS"))
{
socket->have_size = FALSE;
gtk_widget_queue_resize (widget);
}
else if ((xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "XdndAware")) ||
(xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_MOTIF_DRAG_RECEIVER_INFO")))
{
gdk_error_trap_push ();
if (gdk_drag_get_protocol_for_display (display,
xevent->xproperty.window,
&protocol))
gtk_drag_dest_set_proxy (GTK_WIDGET (socket),
socket->plug_window,
protocol, TRUE);
gdk_display_sync (display);
gdk_error_trap_pop ();
}
else if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_XEMBED_INFO"))
{
unsigned long flags;
if (xembed_get_info (socket->plug_window, NULL, &flags))
{
gboolean was_mapped = socket->is_mapped;
gboolean is_mapped = (flags & XEMBED_MAPPED) != 0;
if (was_mapped != is_mapped)
{
if (is_mapped)
map_request (socket);
else
{
gdk_error_trap_push ();
gdk_window_show (socket->plug_window);
gdk_flush ();
gdk_error_trap_pop ();
unmap_notify (socket);
}
}
}
}
return_val = GDK_FILTER_REMOVE;
}
break;
case ReparentNotify:
{
XReparentEvent *xre = &xevent->xreparent;
if (!socket->plug_window && xre->parent == GDK_WINDOW_XWINDOW (widget->window))
{
gtk_socket_add_window (socket, xre->window, FALSE);
if (socket->plug_window)
{
GTK_NOTE(PLUGSOCKET,
g_message ("GtkSocket - window reparented"));
}
return_val = GDK_FILTER_REMOVE;
}
break;
}
case UnmapNotify:
if (socket->plug_window &&
xevent->xunmap.window == GDK_WINDOW_XWINDOW (socket->plug_window))
{
GTK_NOTE(PLUGSOCKET,
g_message ("GtkSocket - Unmap notify"));
unmap_notify (socket);
return_val = GDK_FILTER_REMOVE;
}
break;
}
return return_val;
}
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