Add new notification icon. Update for new files. Restructure code a little

2004-09-13  Glynn Foster  <glynn.foster@sun.com>

	* data/Makefile.am, data/zenity-notification.png: Add new
	notification icon.
	* src/Makefile.am: Update for new files.
	* src/about.c, src/calendar.c, src/entry.c, src/fileselection.c,
	src/progress.c, src/text.c, src/tree.c, src/msg.c: Restructure code a
	little bit for new utility functions for setting window icons.
	* src/eggtrayicon.c, src/eggtrayicon.h: New files for notification area
	support.
	* src/main.c, src/notification.c, src/util.c, src/util.h, src/zenity.h:
	Add support for notification area.
	* data/zenity.1, help/*: Update docs for notification and new file
	selection changes.

1 files changed, 468 insertions, 0 deletions

diff --git a/src/eggtrayicon.c b/src/eggtrayicon.c
new file mode 100644
index 00000000..c4aa3e6e
--- /dev/null
+++ b/src/eggtrayicon.c
@@ -0,0 +1,468 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/* eggtrayicon.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.
+ */
+
+#include <config.h>
+#include <string.h>
+#include <libintl.h>
+
+#include "eggtrayicon.h"
+
+#include <gdk/gdkx.h>
+#include <X11/Xatom.h>
+
+#ifndef EGG_COMPILATION
+#ifndef _
+#define _(x) dgettext (GETTEXT_PACKAGE, x)
+#define N_(x) x
+#endif
+#else
+#define _(x) x
+#define N_(x) x
+#endif
+
+#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
+};
+         
+static GtkPlugClass *parent_class = NULL;
+
+static void egg_tray_icon_init (EggTrayIcon *icon);
+static void egg_tray_icon_class_init (EggTrayIconClass *klass);
+
+static void egg_tray_icon_get_property (GObject    *object,
+					guint       prop_id,
+					GValue     *value,
+					GParamSpec *pspec);
+
+static void egg_tray_icon_realize   (GtkWidget *widget);
+static void egg_tray_icon_unrealize (GtkWidget *widget);
+
+static void egg_tray_icon_update_manager_window (EggTrayIcon *icon);
+
+GType
+egg_tray_icon_get_type (void)
+{
+  static GType our_type = 0;
+
+  if (our_type == 0)
+    {
+      static const GTypeInfo our_info =
+      {
+	sizeof (EggTrayIconClass),
+	(GBaseInitFunc) NULL,
+	(GBaseFinalizeFunc) NULL,
+	(GClassInitFunc) egg_tray_icon_class_init,
+	NULL, /* class_finalize */
+	NULL, /* class_data */
+	sizeof (EggTrayIcon),
+	0,    /* n_preallocs */
+	(GInstanceInitFunc) egg_tray_icon_init
+      };
+
+      our_type = g_type_register_static (GTK_TYPE_PLUG, "EggTrayIcon", &our_info, 0);
+    }
+
+  return our_type;
+}
+
+static void
+egg_tray_icon_init (EggTrayIcon *icon)
+{
+  icon->stamp = 1;
+  icon->orientation = GTK_ORIENTATION_HORIZONTAL;
+  
+  gtk_widget_add_events (GTK_WIDGET (icon), GDK_PROPERTY_CHANGE_MASK);
+}
+
+static void
+egg_tray_icon_class_init (EggTrayIconClass *klass)
+{
+  GObjectClass *gobject_class = (GObjectClass *)klass;
+  GtkWidgetClass *widget_class = (GtkWidgetClass *)klass;
+
+  parent_class = g_type_class_peek_parent (klass);
+
+  gobject_class->get_property = egg_tray_icon_get_property;
+
+  widget_class->realize   = egg_tray_icon_realize;
+  widget_class->unrealize = egg_tray_icon_unrealize;
+
+  g_object_class_install_property (gobject_class,
+				   PROP_ORIENTATION,
+				   g_param_spec_enum ("orientation",
+						      _("Orientation"),
+						      _("The orientation of the tray."),
+						      GTK_TYPE_ORIENTATION,
+						      GTK_ORIENTATION_HORIZONTAL,
+						      G_PARAM_READABLE));
+}
+
+static void
+egg_tray_icon_get_property (GObject    *object,
+			    guint       prop_id,
+			    GValue     *value,
+			    GParamSpec *pspec)
+{
+  EggTrayIcon *icon = EGG_TRAY_ICON (object);
+
+  switch (prop_id)
+    {
+    case PROP_ORIENTATION:
+      g_value_set_enum (value, icon->orientation);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static void
+egg_tray_icon_get_orientation_property (EggTrayIcon *icon)
+{
+  Display *xdisplay;
+  Atom type;
+  int format;
+  union {
+	gulong *prop;
+	guchar *prop_ch;
+  } prop = { NULL };
+  gulong nitems;
+  gulong bytes_after;
+  int error, result;
+
+  g_assert (icon->manager_window != None);
+  
+  xdisplay = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon)));
+
+  gdk_error_trap_push ();
+  type = None;
+  result = XGetWindowProperty (xdisplay,
+			       icon->manager_window,
+			       icon->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)
+    {
+      GtkOrientation orientation;
+
+      orientation = (prop.prop [0] == SYSTEM_TRAY_ORIENTATION_HORZ) ?
+					GTK_ORIENTATION_HORIZONTAL :
+					GTK_ORIENTATION_VERTICAL;
+
+      if (icon->orientation != orientation)
+	{
+	  icon->orientation = orientation;
+
+	  g_object_notify (G_OBJECT (icon), "orientation");
+	}
+    }
+
+  if (prop.prop)
+    XFree (prop.prop);
+}
+
+static GdkFilterReturn
+egg_tray_icon_manager_filter (GdkXEvent *xevent, GdkEvent *event, gpointer user_data)
+{
+  EggTrayIcon *icon = user_data;
+  XEvent *xev = (XEvent *)xevent;
+
+  if (xev->xany.type == ClientMessage &&
+      xev->xclient.message_type == icon->manager_atom &&
+      xev->xclient.data.l[1] == icon->selection_atom)
+    {
+      egg_tray_icon_update_manager_window (icon);
+    }
+  else if (xev->xany.window == icon->manager_window)
+    {
+      if (xev->xany.type == PropertyNotify &&
+	  xev->xproperty.atom == icon->orientation_atom)
+	{
+	  egg_tray_icon_get_orientation_property (icon);
+	}
+      if (xev->xany.type == DestroyNotify)
+	{
+	  egg_tray_icon_update_manager_window (icon);
+	}
+    }
+  
+  return GDK_FILTER_CONTINUE;
+}
+
+static void
+egg_tray_icon_unrealize (GtkWidget *widget)
+{
+  EggTrayIcon *icon = EGG_TRAY_ICON (widget);
+  GdkWindow *root_window;
+
+  if (icon->manager_window != None)
+    {
+      GdkWindow *gdkwin;
+
+      gdkwin = gdk_window_lookup_for_display (gtk_widget_get_display (widget),
+                                              icon->manager_window);
+
+      gdk_window_remove_filter (gdkwin, egg_tray_icon_manager_filter, icon);
+    }
+
+  root_window = gdk_screen_get_root_window (gtk_widget_get_screen (widget));
+
+  gdk_window_remove_filter (root_window, egg_tray_icon_manager_filter, icon);
+
+  if (GTK_WIDGET_CLASS (parent_class)->unrealize)
+    (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
+}
+
+static void
+egg_tray_icon_send_manager_message (EggTrayIcon *icon,
+				    long         message,
+				    Window       window,
+				    long         data1,
+				    long         data2,
+				    long         data3)
+{
+  XClientMessageEvent ev;
+  Display *display;
+  
+  ev.type = ClientMessage;
+  ev.window = window;
+  ev.message_type = icon->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->manager_window, False, NoEventMask, (XEvent *)&ev);
+  XSync (display, False);
+  gdk_error_trap_pop ();
+}
+
+static void
+egg_tray_icon_send_dock_request (EggTrayIcon *icon)
+{
+  egg_tray_icon_send_manager_message (icon,
+				      SYSTEM_TRAY_REQUEST_DOCK,
+				      icon->manager_window,
+				      gtk_plug_get_id (GTK_PLUG (icon)),
+				      0, 0);
+}
+
+static void
+egg_tray_icon_update_manager_window (EggTrayIcon *icon)
+{
+  Display *xdisplay;
+  
+  xdisplay = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon)));
+  
+  if (icon->manager_window != None)
+    {
+      GdkWindow *gdkwin;
+
+      gdkwin = gdk_window_lookup_for_display (gtk_widget_get_display (GTK_WIDGET (icon)),
+					      icon->manager_window);
+      
+      gdk_window_remove_filter (gdkwin, egg_tray_icon_manager_filter, icon);
+    }
+  
+  XGrabServer (xdisplay);
+  
+  icon->manager_window = XGetSelectionOwner (xdisplay,
+					     icon->selection_atom);
+
+  if (icon->manager_window != None)
+    XSelectInput (xdisplay,
+		  icon->manager_window, StructureNotifyMask|PropertyChangeMask);
+
+  XUngrabServer (xdisplay);
+  XFlush (xdisplay);
+  
+  if (icon->manager_window != None)
+    {
+      GdkWindow *gdkwin;
+
+      gdkwin = gdk_window_lookup_for_display (gtk_widget_get_display (GTK_WIDGET (icon)),
+					      icon->manager_window);
+      
+      gdk_window_add_filter (gdkwin, egg_tray_icon_manager_filter, icon);
+
+      /* Send a request that we'd like to dock */
+      egg_tray_icon_send_dock_request (icon);
+
+      egg_tray_icon_get_orientation_property (icon);
+    }
+}
+
+static void
+egg_tray_icon_realize (GtkWidget *widget)
+{
+  EggTrayIcon *icon = EGG_TRAY_ICON (widget);
+  GdkScreen *screen;
+  GdkDisplay *display;
+  Display *xdisplay;
+  char buffer[256];
+  GdkWindow *root_window;
+
+  if (GTK_WIDGET_CLASS (parent_class)->realize)
+    GTK_WIDGET_CLASS (parent_class)->realize (widget);
+
+  screen = gtk_widget_get_screen (widget);
+  display = gdk_screen_get_display (screen);
+  xdisplay = gdk_x11_display_get_xdisplay (display);
+
+  /* Now see if there's a manager window around */
+  g_snprintf (buffer, sizeof (buffer),
+	      "_NET_SYSTEM_TRAY_S%d",
+	      gdk_screen_get_number (screen));
+
+  icon->selection_atom = XInternAtom (xdisplay, buffer, False);
+  
+  icon->manager_atom = XInternAtom (xdisplay, "MANAGER", False);
+  
+  icon->system_tray_opcode_atom = XInternAtom (xdisplay,
+						   "_NET_SYSTEM_TRAY_OPCODE",
+						   False);
+
+  icon->orientation_atom = XInternAtom (xdisplay,
+					"_NET_SYSTEM_TRAY_ORIENTATION",
+					False);
+
+  egg_tray_icon_update_manager_window (icon);
+
+  root_window = gdk_screen_get_root_window (screen);
+  
+  /* Add a root window filter so that we get changes on MANAGER */
+  gdk_window_add_filter (root_window,
+			 egg_tray_icon_manager_filter, icon);
+}
+
+EggTrayIcon *
+egg_tray_icon_new_for_screen (GdkScreen *screen, const char *name)
+{
+  g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
+
+  return g_object_new (EGG_TYPE_TRAY_ICON, "screen", screen, "title", name, NULL);
+}
+
+EggTrayIcon*
+egg_tray_icon_new (const gchar *name)
+{
+  return g_object_new (EGG_TYPE_TRAY_ICON, "title", name, NULL);
+}
+
+guint
+egg_tray_icon_send_message (EggTrayIcon *icon,
+			    gint         timeout,
+			    const gchar *message,
+			    gint         len)
+{
+  guint stamp;
+  
+  g_return_val_if_fail (EGG_IS_TRAY_ICON (icon), 0);
+  g_return_val_if_fail (timeout >= 0, 0);
+  g_return_val_if_fail (message != NULL, 0);
+		     
+  if (icon->manager_window == None)
+    return 0;
+
+  if (len < 0)
+    len = strlen (message);
+
+  stamp = icon->stamp++;
+  
+  /* Get ready to send the message */
+  egg_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 */
+  gdk_error_trap_push ();
+  while (len > 0)
+    {
+      XClientMessageEvent ev;
+      Display *xdisplay;
+
+      xdisplay = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon)));
+      
+      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->manager_window, False, StructureNotifyMask, (XEvent *)&ev);
+      XSync (xdisplay, False);
+    }
+  gdk_error_trap_pop ();
+
+  return stamp;
+}
+
+void
+egg_tray_icon_cancel_message (EggTrayIcon *icon,
+			      guint        id)
+{
+  g_return_if_fail (EGG_IS_TRAY_ICON (icon));
+  g_return_if_fail (id > 0);
+  
+  egg_tray_icon_send_manager_message (icon, SYSTEM_TRAY_CANCEL_MESSAGE,
+				      (Window)gtk_plug_get_id (GTK_PLUG (icon)),
+				      id, 0, 0);
+}
+
+GtkOrientation
+egg_tray_icon_get_orientation (EggTrayIcon *icon)
+{
+  g_return_val_if_fail (EGG_IS_TRAY_ICON (icon), GTK_ORIENTATION_HORIZONTAL);
+
+  return icon->orientation;
+}