AuroraMiddleware/gtk2
1
0
Fork 0
forked from AuroraMiddleware/gtk
Code Issues Pull Requests Projects Releases Wiki Activity
f04a720348
gtk2/gtk/gtktrayicon-x11.c

749 lines
21 KiB
C
Raw Blame History

/* gtktrayicon.c
* Copyright (C) 2002 Anders Carlsson <andersca@gnu.org>
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* This is an implementation of the freedesktop.org "system tray" spec,
* http://www.freedesktop.org/wiki/Standards/systemtray-spec
*/
#include "config.h"
#include <string.h>
#include "gtkintl.h"
#include "gtkprivate.h"
#include "gtktrayicon.h"
#include "gtkalias.h"
#include "x11/gdkx.h"
#include <X11/Xatom.h>
#define SYSTEM_TRAY_REQUEST_DOCK 0
#define SYSTEM_TRAY_BEGIN_MESSAGE 1
#define SYSTEM_TRAY_CANCEL_MESSAGE 2
#define SYSTEM_TRAY_ORIENTATION_HORZ 0
#define SYSTEM_TRAY_ORIENTATION_VERT 1
enum {
PROP_0,
PROP_ORIENTATION
};
struct _GtkTrayIconPrivate
{
guint stamp;
Atom selection_atom;
Atom manager_atom;
Atom system_tray_opcode_atom;
Atom orientation_atom;
Atom visual_atom;
Window manager_window;
GdkVisual *manager_visual;
gboolean manager_visual_rgba;
GtkOrientation orientation;
};
static void gtk_tray_icon_constructed (GObject *object);
static void gtk_tray_icon_dispose (GObject *object);
static void gtk_tray_icon_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_tray_icon_realize (GtkWidget *widget);
static void gtk_tray_icon_style_set (GtkWidget *widget,
GtkStyle *previous_style);
static gboolean gtk_tray_icon_delete (GtkWidget *widget,
GdkEventAny *event);
static gboolean gtk_tray_icon_expose (GtkWidget *widget,
GdkEventExpose *event);
static void gtk_tray_icon_clear_manager_window (GtkTrayIcon *icon);
static void gtk_tray_icon_update_manager_window (GtkTrayIcon *icon);
static void gtk_tray_icon_manager_window_destroyed (GtkTrayIcon *icon);
static GdkFilterReturn gtk_tray_icon_manager_filter (GdkXEvent *xevent,
GdkEvent *event,
gpointer user_data);
G_DEFINE_TYPE (GtkTrayIcon, gtk_tray_icon, GTK_TYPE_PLUG)
static void
gtk_tray_icon_class_init (GtkTrayIconClass *class)
{
GObjectClass *gobject_class = (GObjectClass *)class;
GtkWidgetClass *widget_class = (GtkWidgetClass *)class;
gobject_class->get_property = gtk_tray_icon_get_property;
gobject_class->constructed = gtk_tray_icon_constructed;
gobject_class->dispose = gtk_tray_icon_dispose;
widget_class->realize = gtk_tray_icon_realize;
widget_class->style_set = gtk_tray_icon_style_set;
widget_class->delete_event = gtk_tray_icon_delete;
widget_class->expose_event = gtk_tray_icon_expose;
g_object_class_install_property (gobject_class,
PROP_ORIENTATION,
g_param_spec_enum ("orientation",
P_("Orientation"),
P_("The orientation of the tray"),
GTK_TYPE_ORIENTATION,
GTK_ORIENTATION_HORIZONTAL,
GTK_PARAM_READABLE));
g_type_class_add_private (class, sizeof (GtkTrayIconPrivate));
}
static void
gtk_tray_icon_init (GtkTrayIcon *icon)
{
icon->priv = G_TYPE_INSTANCE_GET_PRIVATE (icon, GTK_TYPE_TRAY_ICON,
GtkTrayIconPrivate);
icon->priv->stamp = 1;
icon->priv->orientation = GTK_ORIENTATION_HORIZONTAL;
gtk_widget_set_app_paintable (GTK_WIDGET (icon), TRUE);
gtk_widget_add_events (GTK_WIDGET (icon), GDK_PROPERTY_CHANGE_MASK);
}
static void
gtk_tray_icon_constructed (GObject *object)
{
/* Do setup that depends on the screen; screen has been set at this point */
GtkTrayIcon *icon = GTK_TRAY_ICON (object);
GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (object));
GdkWindow *root_window = gdk_screen_get_root_window (screen);
GdkDisplay *display = gtk_widget_get_display (GTK_WIDGET (object));
Display *xdisplay = gdk_x11_display_get_xdisplay (display);
char buffer[256];
g_snprintf (buffer, sizeof (buffer),
"_NET_SYSTEM_TRAY_S%d",
gdk_screen_get_number (screen));
icon->priv->selection_atom = XInternAtom (xdisplay, buffer, False);
icon->priv->manager_atom = XInternAtom (xdisplay, "MANAGER", False);
icon->priv->system_tray_opcode_atom = XInternAtom (xdisplay,
"_NET_SYSTEM_TRAY_OPCODE",
False);
icon->priv->orientation_atom = XInternAtom (xdisplay,
"_NET_SYSTEM_TRAY_ORIENTATION",
False);
icon->priv->visual_atom = XInternAtom (xdisplay,
"_NET_SYSTEM_TRAY_VISUAL",
False);
/* Add a root window filter so that we get changes on MANAGER */
gdk_window_add_filter (root_window,
gtk_tray_icon_manager_filter, icon);
gtk_tray_icon_update_manager_window (icon);
}
static void
gtk_tray_icon_clear_manager_window (GtkTrayIcon *icon)
{
GdkDisplay *display = gtk_widget_get_display (GTK_WIDGET (icon));
if (icon->priv->manager_window != None)
{
GdkWindow *gdkwin;
gdkwin = gdk_window_lookup_for_display (display,
icon->priv->manager_window);
gdk_window_remove_filter (gdkwin, gtk_tray_icon_manager_filter, icon);
icon->priv->manager_window = None;
icon->priv->manager_visual = NULL;
}
}
static void
gtk_tray_icon_dispose (GObject *object)
{
GtkTrayIcon *icon = GTK_TRAY_ICON (object);
GtkWidget *widget = GTK_WIDGET (object);
GdkWindow *root_window = gdk_screen_get_root_window (gtk_widget_get_screen (widget));
gtk_tray_icon_clear_manager_window (icon);
gdk_window_remove_filter (root_window, gtk_tray_icon_manager_filter, icon);
}
static void
gtk_tray_icon_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkTrayIcon *icon = GTK_TRAY_ICON (object);
switch (prop_id)
{
case PROP_ORIENTATION:
g_value_set_enum (value, icon->priv->orientation);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gtk_tray_icon_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkTrayIcon *icon = GTK_TRAY_ICON (widget);
GtkWidget *focus_child;
gint border_width, x, y, width, height;
gboolean retval = FALSE;
if (icon->priv->manager_visual_rgba)
{
/* Clear to transparent */
cairo_t *cr = gdk_cairo_create (widget->window);
cairo_set_source_rgba (cr, 0, 0, 0, 0);
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
gdk_cairo_region (cr, event->region);
cairo_fill (cr);
cairo_destroy (cr);
}
else
{
/* Clear to parent-relative pixmap */
gdk_window_clear_area (widget->window, event->area.x, event->area.y,
event->area.width, event->area.height);
}
if (GTK_WIDGET_CLASS (gtk_tray_icon_parent_class)->expose_event)
retval = GTK_WIDGET_CLASS (gtk_tray_icon_parent_class)->expose_event (widget, event);
focus_child = GTK_CONTAINER (widget)->focus_child;
if (focus_child && gtk_widget_has_focus (focus_child))
{
border_width = GTK_CONTAINER (widget)->border_width;
x = widget->allocation.x + border_width;
y = widget->allocation.y + border_width;
width = widget->allocation.width - 2 * border_width;
height = widget->allocation.height - 2 * border_width;
gtk_paint_focus (widget->style, widget->window,
gtk_widget_get_state (widget),
&event->area, widget, "tray_icon",
x, y, width, height);
}
return retval;
}
static void
gtk_tray_icon_get_orientation_property (GtkTrayIcon *icon)
{
GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (icon));
GdkDisplay *display = gdk_screen_get_display (screen);
Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
Atom type;
int format;
union {
gulong *prop;
guchar *prop_ch;
} prop = { NULL };
gulong nitems;
gulong bytes_after;
int error, result;
g_assert (icon->priv->manager_window != None);
gdk_error_trap_push ();
type = None;
result = XGetWindowProperty (xdisplay,
icon->priv->manager_window,
icon->priv->orientation_atom,
0, G_MAXLONG, FALSE,
XA_CARDINAL,
&type, &format, &nitems,
&bytes_after, &(prop.prop_ch));
error = gdk_error_trap_pop ();
if (error || result != Success)
return;
if (type == XA_CARDINAL && nitems == 1 && format == 32)
{
GtkOrientation orientation;
orientation = (prop.prop [0] == SYSTEM_TRAY_ORIENTATION_HORZ) ?
GTK_ORIENTATION_HORIZONTAL :
GTK_ORIENTATION_VERTICAL;
if (icon->priv->orientation != orientation)
{
icon->priv->orientation = orientation;
g_object_notify (G_OBJECT (icon), "orientation");
}
}
if (type != None)
XFree (prop.prop);
}
static void
gtk_tray_icon_get_visual_property (GtkTrayIcon *icon)
{
GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (icon));
GdkDisplay *display = gdk_screen_get_display (screen);
Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
Atom type;
int format;
union {
gulong *prop;
guchar *prop_ch;
} prop = { NULL };
gulong nitems;
gulong bytes_after;
int error, result;
GdkVisual *visual;
g_assert (icon->priv->manager_window != None);
gdk_error_trap_push ();
type = None;
result = XGetWindowProperty (xdisplay,
icon->priv->manager_window,
icon->priv->visual_atom,
0, G_MAXLONG, FALSE,
XA_VISUALID,
&type, &format, &nitems,
&bytes_after, &(prop.prop_ch));
error = gdk_error_trap_pop ();
visual = NULL;
if (!error && result == Success &&
type == XA_VISUALID && nitems == 1 && format == 32)
{
VisualID visual_id = prop.prop[0];
visual = gdk_x11_screen_lookup_visual (screen, visual_id);
}
icon->priv->manager_visual = visual;
icon->priv->manager_visual_rgba = visual != NULL &&
(visual->red_prec + visual->blue_prec + visual->green_prec < visual->depth);
/* For the background-relative hack we use when we aren't using a real RGBA
* visual, we can't be double-buffered */
gtk_widget_set_double_buffered (GTK_WIDGET (icon), icon->priv->manager_visual_rgba);
if (type != None)
XFree (prop.prop);
}
static GdkFilterReturn
gtk_tray_icon_manager_filter (GdkXEvent *xevent,
GdkEvent *event,
gpointer user_data)
{
GtkTrayIcon *icon = user_data;
XEvent *xev = (XEvent *)xevent;
if (xev->xany.type == ClientMessage &&
xev->xclient.message_type == icon->priv->manager_atom &&
xev->xclient.data.l[1] == icon->priv->selection_atom)
{
GTK_NOTE (PLUGSOCKET,
g_print ("GtkStatusIcon %p: tray manager appeared\n", icon));
gtk_tray_icon_update_manager_window (icon);
}
else if (xev->xany.window == icon->priv->manager_window)
{
if (xev->xany.type == PropertyNotify &&
xev->xproperty.atom == icon->priv->orientation_atom)
{
GTK_NOTE (PLUGSOCKET,
g_print ("GtkStatusIcon %p: got PropertyNotify on manager window for orientation atom\n", icon));
gtk_tray_icon_get_orientation_property (icon);
}
else if (xev->xany.type == DestroyNotify)
{
GTK_NOTE (PLUGSOCKET,
g_print ("GtkStatusIcon %p: got DestroyNotify for manager window\n", icon));
gtk_tray_icon_manager_window_destroyed (icon);
}
else
GTK_NOTE (PLUGSOCKET,
g_print ("GtkStatusIcon %p: got other message on manager window\n", icon));
}
return GDK_FILTER_CONTINUE;
}
static void
gtk_tray_icon_send_manager_message (GtkTrayIcon *icon,
long message,
Window window,
long data1,
long data2,
long data3)
{
XClientMessageEvent ev;
Display *display;
memset (&ev, 0, sizeof (ev));
ev.type = ClientMessage;
ev.window = window;
ev.message_type = icon->priv->system_tray_opcode_atom;
ev.format = 32;
ev.data.l[0] = gdk_x11_get_server_time (GTK_WIDGET (icon)->window);
ev.data.l[1] = message;
ev.data.l[2] = data1;
ev.data.l[3] = data2;
ev.data.l[4] = data3;
display = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon)));
gdk_error_trap_push ();
XSendEvent (display,
icon->priv->manager_window, False, NoEventMask, (XEvent *)&ev);
gdk_display_sync (gtk_widget_get_display (GTK_WIDGET (icon)));
gdk_error_trap_pop ();
}
static void
gtk_tray_icon_send_dock_request (GtkTrayIcon *icon)
{
GTK_NOTE (PLUGSOCKET,
g_print ("GtkStatusIcon %p: sending dock request to manager window %lx\n",
icon, (gulong) icon->priv->manager_window));
gtk_tray_icon_send_manager_message (icon,
SYSTEM_TRAY_REQUEST_DOCK,
icon->priv->manager_window,
gtk_plug_get_id (GTK_PLUG (icon)),
0, 0);
}
static void
gtk_tray_icon_update_manager_window (GtkTrayIcon *icon)
{
GtkWidget *widget = GTK_WIDGET (icon);
GdkScreen *screen = gtk_widget_get_screen (widget);
GdkDisplay *display = gdk_screen_get_display (screen);
Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
GTK_NOTE (PLUGSOCKET,
g_print ("GtkStatusIcon %p: updating tray icon manager window, current manager window: %lx\n",
icon, (gulong) icon->priv->manager_window));
if (icon->priv->manager_window != None)
return;
GTK_NOTE (PLUGSOCKET,
g_print ("GtkStatusIcon %p: trying to find manager window\n", icon));
XGrabServer (xdisplay);
icon->priv->manager_window = XGetSelectionOwner (xdisplay,
icon->priv->selection_atom);
if (icon->priv->manager_window != None)
XSelectInput (xdisplay,
icon->priv->manager_window, StructureNotifyMask|PropertyChangeMask);
XUngrabServer (xdisplay);
XFlush (xdisplay);
if (icon->priv->manager_window != None)
{
GdkWindow *gdkwin;
GTK_NOTE (PLUGSOCKET,
g_print ("GtkStatusIcon %p: is being managed by window %lx\n",
icon, (gulong) icon->priv->manager_window));
gdkwin = gdk_window_lookup_for_display (display,
icon->priv->manager_window);
gdk_window_add_filter (gdkwin, gtk_tray_icon_manager_filter, icon);
gtk_tray_icon_get_orientation_property (icon);
gtk_tray_icon_get_visual_property (icon);
if (gtk_widget_get_realized (GTK_WIDGET (icon)))
{
if ((icon->priv->manager_visual == NULL &&
gtk_widget_get_visual (widget) == gdk_screen_get_system_visual (screen)) ||
(icon->priv->manager_visual == gtk_widget_get_visual (widget)))
{
/* Already have the right visual, can just dock
*/
gtk_tray_icon_send_dock_request (icon);
}
else
{
/* Need to re-realize the widget to get the right visual
*/
gtk_widget_hide (widget);
gtk_widget_unrealize (widget);
gtk_widget_show (widget);
}
}
}
else
GTK_NOTE (PLUGSOCKET,
g_print ("GtkStatusIcon %p: no tray manager found\n", icon));
}
static void
gtk_tray_icon_manager_window_destroyed (GtkTrayIcon *icon)
{
g_return_if_fail (icon->priv->manager_window != None);
GTK_NOTE (PLUGSOCKET,
g_print ("GtkStatusIcon %p: tray manager window destroyed\n", icon));
gtk_tray_icon_clear_manager_window (icon);
}
static gboolean
gtk_tray_icon_delete (GtkWidget *widget,
GdkEventAny *event)
{
#ifdef G_ENABLE_DEBUG
GtkTrayIcon *icon = GTK_TRAY_ICON (widget);
#endif
GTK_NOTE (PLUGSOCKET,
g_print ("GtkStatusIcon %p: delete notify, tray manager window %lx\n",
icon, (gulong) icon->priv->manager_window));
/* A bug in X server versions up to x.org 1.5.0 means that:
* XFixesChangeSaveSet(...., SaveSetRoot, SaveSetUnmap) doesn't work properly
* and we'll left mapped in a separate toplevel window if the tray is destroyed.
* For simplicity just get rid of our X window and start over.
*/
gtk_widget_hide (widget);
gtk_widget_unrealize (widget);
gtk_widget_show (widget);
/* Handled it, don't destroy the tray icon */
return TRUE;
}
static void
gtk_tray_icon_set_colormap (GtkTrayIcon *icon)
{
GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (icon));
GdkColormap *colormap;
GdkVisual *visual = icon->priv->manager_visual;
gboolean new_colormap = FALSE;
/* To avoid uncertainty about colormaps, _NET_SYSTEM_TRAY_VISUAL is supposed
* to be either the screen default visual or a TrueColor visual; ignore it
* if it is something else
*/
if (visual && visual->type != GDK_VISUAL_TRUE_COLOR)
visual = NULL;
if (visual == NULL || visual == gdk_screen_get_system_visual (screen))
colormap = gdk_screen_get_system_colormap (screen);
else if (visual == gdk_screen_get_rgb_visual (screen))
colormap = gdk_screen_get_rgb_colormap (screen);
else if (visual == gdk_screen_get_rgba_visual (screen))
colormap = gdk_screen_get_rgba_colormap (screen);
else
{
colormap = gdk_colormap_new (visual, FALSE);
new_colormap = TRUE;
}
gtk_widget_set_colormap (GTK_WIDGET (icon), colormap);
if (new_colormap)
g_object_unref (colormap);
}
static void
gtk_tray_icon_realize (GtkWidget *widget)
{
GtkTrayIcon *icon = GTK_TRAY_ICON (widget);
/* Set our colormap before realizing */
gtk_tray_icon_set_colormap (icon);
GTK_WIDGET_CLASS (gtk_tray_icon_parent_class)->realize (widget);
if (icon->priv->manager_visual_rgba)
{
/* Set a transparent background */
GdkColor transparent = { 0, 0, 0, 0 }; /* Only pixel=0 matters */
gdk_window_set_background (widget->window, &transparent);
}
else
{
/* Set a parent-relative background pixmap */
gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
}
GTK_NOTE (PLUGSOCKET,
g_print ("GtkStatusIcon %p: realized, window: %lx, socket window: %lx\n",
widget,
(gulong) GDK_WINDOW_XWINDOW (widget->window),
GTK_PLUG (icon)->socket_window ?
(gulong) GDK_WINDOW_XWINDOW (GTK_PLUG (icon)->socket_window) : 0UL));
if (icon->priv->manager_window != None)
gtk_tray_icon_send_dock_request (icon);
}
static void
gtk_tray_icon_style_set (GtkWidget *widget,
GtkStyle *previous_style)
{
/* The default handler resets the background according to the style. We either
* use a transparent background or a parent-relative background and ignore the
* style background. So, just don't chain up.
*/
}
guint
_gtk_tray_icon_send_message (GtkTrayIcon *icon,
gint timeout,
const gchar *message,
gint len)
{
guint stamp;
Display *xdisplay;
g_return_val_if_fail (GTK_IS_TRAY_ICON (icon), 0);
g_return_val_if_fail (timeout >= 0, 0);
g_return_val_if_fail (message != NULL, 0);
if (icon->priv->manager_window == None)
return 0;
if (len < 0)
len = strlen (message);
stamp = icon->priv->stamp++;
/* Get ready to send the message */
gtk_tray_icon_send_manager_message (icon, SYSTEM_TRAY_BEGIN_MESSAGE,
(Window)gtk_plug_get_id (GTK_PLUG (icon)),
timeout, len, stamp);
/* Now to send the actual message */
xdisplay = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon)));
gdk_error_trap_push ();
while (len > 0)
{
XClientMessageEvent ev;
memset (&ev, 0, sizeof (ev));
ev.type = ClientMessage;
ev.window = (Window)gtk_plug_get_id (GTK_PLUG (icon));
ev.format = 8;
ev.message_type = XInternAtom (xdisplay,
"_NET_SYSTEM_TRAY_MESSAGE_DATA", False);
if (len > 20)
{
memcpy (&ev.data, message, 20);
len -= 20;
message += 20;
}
else
{
memcpy (&ev.data, message, len);
len = 0;
}
XSendEvent (xdisplay,
icon->priv->manager_window, False,
StructureNotifyMask, (XEvent *)&ev);
}
gdk_display_sync (gtk_widget_get_display (GTK_WIDGET (icon)));
gdk_error_trap_pop ();
return stamp;
}
void
_gtk_tray_icon_cancel_message (GtkTrayIcon *icon,
guint id)
{
g_return_if_fail (GTK_IS_TRAY_ICON (icon));
g_return_if_fail (id > 0);
gtk_tray_icon_send_manager_message (icon, SYSTEM_TRAY_CANCEL_MESSAGE,
(Window)gtk_plug_get_id (GTK_PLUG (icon)),
id, 0, 0);
}
GtkTrayIcon *
_gtk_tray_icon_new_for_screen (GdkScreen *screen,
const gchar *name)
{
g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
return g_object_new (GTK_TYPE_TRAY_ICON,
"screen", screen,
"title", name,
NULL);
}
GtkTrayIcon*
_gtk_tray_icon_new (const gchar *name)
{
return g_object_new (GTK_TYPE_TRAY_ICON,
"title", name,
NULL);
}
GtkOrientation
_gtk_tray_icon_get_orientation (GtkTrayIcon *icon)
{
g_return_val_if_fail (GTK_IS_TRAY_ICON (icon), GTK_ORIENTATION_HORIZONTAL);
return icon->priv->orientation;
}
#define __GTK_TRAY_ICON_X11_C__
#include "gtkaliasdef.c"
Reference in New Issue View Git Blame Copy Permalink