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diff --git a/libmate-panel-applet/mate-panel-applet.c b/libmate-panel-applet/mate-panel-applet.c
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+/*
+ * mate-panel-applet.c: panel applet writing library.
+ *
+ * Copyright (c) 2010 Carlos Garcia Campos <[email protected]>
+ * Copyright (C) 2001 Sun Microsystems, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library 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.
+ *
+ * Authors:
+ * Mark McLoughlin <[email protected]>
+ */
+
+#ifdef HAVE_CONFIG_H
+ #include <config.h>
+#endif
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <glib/gi18n-lib.h>
+#include <cairo.h>
+#include <gdk/gdk.h>
+#include <gdk/gdkx.h>
+#include <gdk/gdkkeysyms.h>
+#include <gtk/gtk.h>
+#include <mateconf/mateconf.h>
+#include <mateconf/mateconf-client.h>
+#include <X11/Xatom.h>
+
+#include "mate-panel-applet.h"
+#include "mate-panel-applet-factory.h"
+#include "mate-panel-applet-marshal.h"
+#include "mate-panel-applet-enums.h"
+
+#define MATE_PANEL_APPLET_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), PANEL_TYPE_APPLET, MatePanelAppletPrivate))
+
+struct _MatePanelAppletPrivate {
+ GtkWidget *plug;
+ GtkWidget *applet;
+ MateConfClient *client;
+ GDBusConnection *connection;
+
+ char *id;
+ GClosure *closure;
+ char *object_path;
+ guint object_id;
+ char *prefs_key;
+
+ GtkUIManager *ui_manager;
+ GtkActionGroup *applet_action_group;
+ GtkActionGroup *panel_action_group;
+
+ MatePanelAppletFlags flags;
+ MatePanelAppletOrient orient;
+ guint size;
+ char *background;
+ GtkWidget *background_widget;
+
+ int previous_width;
+ int previous_height;
+
+ int *size_hints;
+ int size_hints_len;
+
+ gboolean moving_focus_out;
+
+ gboolean locked;
+ gboolean locked_down;
+};
+
+enum {
+ CHANGE_ORIENT,
+ CHANGE_SIZE,
+ CHANGE_BACKGROUND,
+ MOVE_FOCUS_OUT_OF_APPLET,
+ SAVE_YOURSELF,
+ LAST_SIGNAL
+};
+
+static guint mate_panel_applet_signals[LAST_SIGNAL];
+
+enum {
+ PROP_0,
+ PROP_ID,
+ PROP_CLOSURE,
+ PROP_CONNECTION,
+ PROP_PREFS_KEY,
+ PROP_ORIENT,
+ PROP_SIZE,
+ PROP_BACKGROUND,
+ PROP_FLAGS,
+ PROP_SIZE_HINTS,
+ PROP_LOCKED,
+ PROP_LOCKED_DOWN
+};
+
+static void mate_panel_applet_handle_background (MatePanelApplet *applet);
+static GtkAction *mate_panel_applet_menu_get_action (MatePanelApplet *applet,
+ const gchar *action);
+static void mate_panel_applet_menu_update_actions (MatePanelApplet *applet);
+static void mate_panel_applet_menu_cmd_remove (GtkAction *action,
+ MatePanelApplet *applet);
+static void mate_panel_applet_menu_cmd_move (GtkAction *action,
+ MatePanelApplet *applet);
+static void mate_panel_applet_menu_cmd_lock (GtkAction *action,
+ MatePanelApplet *applet);
+static void mate_panel_applet_register_object (MatePanelApplet *applet);
+
+static const gchar panel_menu_ui[] =
+ "<ui>\n"
+ " <popup name=\"MatePanelAppletPopup\" action=\"PopupAction\">\n"
+ " <placeholder name=\"AppletItems\"/>\n"
+ " <separator/>\n"
+ " <menuitem name=\"RemoveItem\" action=\"Remove\"/>\n"
+ " <menuitem name=\"MoveItem\" action=\"Move\"/>\n"
+ " <separator/>\n"
+ " <menuitem name=\"LockItem\" action=\"Lock\"/>\n"
+ " </popup>\n"
+ "</ui>\n";
+
+static const GtkActionEntry menu_entries[] = {
+ { "Remove", GTK_STOCK_REMOVE, N_("_Remove From Panel"),
+ NULL, NULL,
+ G_CALLBACK (mate_panel_applet_menu_cmd_remove) },
+ { "Move", NULL, N_("_Move"),
+ NULL, NULL,
+ G_CALLBACK (mate_panel_applet_menu_cmd_move) }
+};
+
+static const GtkToggleActionEntry menu_toggle_entries[] = {
+ { "Lock", NULL, N_("Loc_k To Panel"),
+ NULL, NULL,
+ G_CALLBACK (mate_panel_applet_menu_cmd_lock) }
+};
+
+G_DEFINE_TYPE (MatePanelApplet, mate_panel_applet, GTK_TYPE_EVENT_BOX)
+
+#define MATE_PANEL_APPLET_INTERFACE "org.mate.panel.applet.Applet"
+#define MATE_PANEL_APPLET_OBJECT_PATH "/org/mate/panel/applet/%s/%d"
+
+static void
+mate_panel_applet_associate_schemas_in_dir (MateConfClient *client,
+ const gchar *prefs_key,
+ const gchar *schema_dir,
+ GError **error)
+{
+ GSList *list, *l;
+
+ list = mateconf_client_all_entries (client, schema_dir, error);
+
+ if (*error != NULL)
+ return;
+
+ for (l = list; l; l = l->next) {
+ MateConfEntry *entry = l->data;
+ const gchar *schema_key;
+ MateConfEntry *applet_entry;
+ const gchar *applet_schema_key;
+ gchar *key;
+ gchar *tmp;
+
+ schema_key = mateconf_entry_get_key (entry);
+ tmp = g_path_get_basename (schema_key);
+
+ if (strchr (tmp, '-'))
+ g_warning ("Applet key '%s' contains a hyphen. Please "
+ "use underscores in mateconf keys\n", tmp);
+
+ key = g_strdup_printf ("%s/%s", prefs_key, tmp);
+ g_free (tmp);
+
+ /* Associating a schema is potentially expensive, so let's try
+ * to avoid this by doing it only when needed. So we check if
+ * the key is already correctly associated. */
+
+ applet_entry = mateconf_client_get_entry (client, key,
+ NULL, TRUE, NULL);
+ if (applet_entry)
+ applet_schema_key = mateconf_entry_get_schema_name (applet_entry);
+ else
+ applet_schema_key = NULL;
+
+ if (g_strcmp0 (schema_key, applet_schema_key) != 0) {
+ mateconf_engine_associate_schema (client->engine,
+ key, schema_key, error);
+
+ if (applet_entry == NULL ||
+ mateconf_entry_get_value (applet_entry) == NULL ||
+ mateconf_entry_get_is_default (applet_entry)) {
+ /* unset the key: mateconf_client_get_entry()
+ * brought an invalid entry in the client
+ * cache, and we want to fix this */
+ mateconf_client_unset (client, key, NULL);
+ }
+ }
+
+ g_free (key);
+
+ if (applet_entry)
+ mateconf_entry_unref (applet_entry);
+ mateconf_entry_unref (entry);
+
+ if (*error) {
+ g_slist_free (list);
+ return;
+ }
+ }
+
+ g_slist_free (list);
+
+ list = mateconf_client_all_dirs (client, schema_dir, error);
+
+ for (l = list; l; l = l->next) {
+ gchar *subdir = l->data;
+ gchar *prefs_subdir;
+ gchar *schema_subdir;
+ gchar *tmp;
+
+ tmp = g_path_get_basename (subdir);
+
+ prefs_subdir = g_strdup_printf ("%s/%s", prefs_key, tmp);
+ schema_subdir = g_strdup_printf ("%s/%s", schema_dir, tmp);
+
+ mate_panel_applet_associate_schemas_in_dir (client,
+ prefs_subdir,
+ schema_subdir,
+ error);
+
+ g_free (prefs_subdir);
+ g_free (schema_subdir);
+ g_free (subdir);
+ g_free (tmp);
+
+ if (*error) {
+ g_slist_free (list);
+ return;
+ }
+ }
+
+ g_slist_free (list);
+}
+
+void
+mate_panel_applet_add_preferences (MatePanelApplet *applet,
+ const gchar *schema_dir,
+ GError **opt_error)
+{
+ GError **error = NULL;
+ GError *our_error = NULL;
+
+ g_return_if_fail (PANEL_IS_APPLET (applet));
+ g_return_if_fail (schema_dir != NULL);
+
+ if (!applet->priv->prefs_key)
+ return;
+
+ if (opt_error)
+ error = opt_error;
+ else
+ error = &our_error;
+
+ mate_panel_applet_associate_schemas_in_dir (applet->priv->client,
+ applet->priv->prefs_key,
+ schema_dir,
+ error);
+
+ if (!opt_error && our_error) {
+ g_warning (G_STRLOC ": failed to add preferences from '%s' : '%s'",
+ schema_dir, our_error->message);
+ g_error_free (our_error);
+ }
+}
+
+char *
+mate_panel_applet_get_preferences_key (MatePanelApplet *applet)
+{
+ g_return_val_if_fail (PANEL_IS_APPLET (applet), NULL);
+
+ if (!applet->priv->prefs_key)
+ return NULL;
+
+ return g_strdup (applet->priv->prefs_key);
+}
+
+static void
+mate_panel_applet_set_preferences_key (MatePanelApplet *applet,
+ const char *prefs_key)
+{
+ if (applet->priv->prefs_key == prefs_key)
+ return;
+
+ if (g_strcmp0 (applet->priv->prefs_key, prefs_key) == 0)
+ return;
+
+ if (applet->priv->prefs_key) {
+ mateconf_client_remove_dir (applet->priv->client,
+ applet->priv->prefs_key,
+ NULL);
+
+ g_free (applet->priv->prefs_key);
+ applet->priv->prefs_key = NULL;
+ }
+
+ if (prefs_key) {
+ applet->priv->prefs_key = g_strdup (prefs_key);
+
+ mateconf_client_add_dir (applet->priv->client,
+ applet->priv->prefs_key,
+ MATECONF_CLIENT_PRELOAD_RECURSIVE,
+ NULL);
+ }
+
+ g_object_notify (G_OBJECT (applet), "prefs-key");
+}
+
+MatePanelAppletFlags
+mate_panel_applet_get_flags (MatePanelApplet *applet)
+{
+ g_return_val_if_fail (PANEL_IS_APPLET (applet), MATE_PANEL_APPLET_FLAGS_NONE);
+
+ return applet->priv->flags;
+}
+
+void
+mate_panel_applet_set_flags (MatePanelApplet *applet,
+ MatePanelAppletFlags flags)
+{
+ g_return_if_fail (PANEL_IS_APPLET (applet));
+
+ if (applet->priv->flags == flags)
+ return;
+
+ applet->priv->flags = flags;
+
+ g_object_notify (G_OBJECT (applet), "flags");
+
+ if (applet->priv->connection) {
+ GVariantBuilder *builder;
+ GVariantBuilder *invalidated_builder;
+ GError *error = NULL;
+
+ builder = g_variant_builder_new (G_VARIANT_TYPE_ARRAY);
+ invalidated_builder = g_variant_builder_new (G_VARIANT_TYPE ("as"));
+
+ g_variant_builder_add (builder, "{sv}", "Flags",
+ g_variant_new_uint32 (applet->priv->flags));
+
+ g_dbus_connection_emit_signal (applet->priv->connection,
+ NULL,
+ applet->priv->object_path,
+ "org.freedesktop.DBus.Properties",
+ "PropertiesChanged",
+ g_variant_new ("(sa{sv}as)",
+ MATE_PANEL_APPLET_INTERFACE,
+ builder,
+ invalidated_builder),
+ &error);
+ if (error) {
+ g_printerr ("Failed to send signal PropertiesChanged::Flags: %s\n",
+ error->message);
+ g_error_free (error);
+ }
+ }
+}
+
+static void
+mate_panel_applet_size_hints_ensure (MatePanelApplet *applet,
+ int new_size)
+{
+ if (applet->priv->size_hints && applet->priv->size_hints_len < new_size) {
+ g_free (applet->priv->size_hints);
+ applet->priv->size_hints = g_new (gint, new_size);
+ } else if (!applet->priv->size_hints) {
+ applet->priv->size_hints = g_new (gint, new_size);
+ }
+ applet->priv->size_hints_len = new_size;
+}
+
+static gboolean
+mate_panel_applet_size_hints_changed (MatePanelApplet *applet,
+ const int *size_hints,
+ int n_elements,
+ int base_size)
+{
+ gint i;
+
+ if (!applet->priv->size_hints)
+ return TRUE;
+
+ if (applet->priv->size_hints_len != n_elements)
+ return TRUE;
+
+ for (i = 0; i < n_elements; i++) {
+ if (size_hints[i] + base_size != applet->priv->size_hints[i])
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+void
+mate_panel_applet_set_size_hints (MatePanelApplet *applet,
+ const int *size_hints,
+ int n_elements,
+ int base_size)
+{
+ gint i;
+
+ /* Make sure property has really changed to avoid bus traffic */
+ if (!mate_panel_applet_size_hints_changed (applet, size_hints, n_elements, base_size))
+ return;
+
+ mate_panel_applet_size_hints_ensure (applet, n_elements);
+ for (i = 0; i < n_elements; i++)
+ applet->priv->size_hints[i] = size_hints[i] + base_size;
+
+ g_object_notify (G_OBJECT (applet), "size-hints");
+
+ if (applet->priv->connection) {
+ GVariantBuilder *builder;
+ GVariantBuilder *invalidated_builder;
+ GVariant **children;
+ GError *error = NULL;
+
+ builder = g_variant_builder_new (G_VARIANT_TYPE_ARRAY);
+ invalidated_builder = g_variant_builder_new (G_VARIANT_TYPE ("as"));
+
+ children = g_new (GVariant *, applet->priv->size_hints_len);
+ for (i = 0; i < n_elements; i++)
+ children[i] = g_variant_new_int32 (applet->priv->size_hints[i]);
+ g_variant_builder_add (builder, "{sv}", "SizeHints",
+ g_variant_new_array (G_VARIANT_TYPE_INT32,
+ children, applet->priv->size_hints_len));
+ g_free (children);
+
+ g_dbus_connection_emit_signal (applet->priv->connection,
+ NULL,
+ applet->priv->object_path,
+ "org.freedesktop.DBus.Properties",
+ "PropertiesChanged",
+ g_variant_new ("(sa{sv}as)",
+ MATE_PANEL_APPLET_INTERFACE,
+ builder,
+ invalidated_builder),
+ &error);
+ if (error) {
+ g_printerr ("Failed to send signal PropertiesChanged::SizeHints: %s\n",
+ error->message);
+ g_error_free (error);
+ }
+ }
+}
+
+guint
+mate_panel_applet_get_size (MatePanelApplet *applet)
+{
+ g_return_val_if_fail (PANEL_IS_APPLET (applet), 0);
+
+ return applet->priv->size;
+}
+
+/* Applets cannot set their size, so API is not public. */
+static void
+mate_panel_applet_set_size (MatePanelApplet *applet,
+ guint size)
+{
+ g_return_if_fail (PANEL_IS_APPLET (applet));
+
+ if (applet->priv->size == size)
+ return;
+
+ applet->priv->size = size;
+ g_signal_emit (G_OBJECT (applet),
+ mate_panel_applet_signals [CHANGE_SIZE],
+ 0, size);
+
+ g_object_notify (G_OBJECT (applet), "size");
+}
+
+MatePanelAppletOrient
+mate_panel_applet_get_orient (MatePanelApplet *applet)
+{
+ g_return_val_if_fail (PANEL_IS_APPLET (applet), 0);
+
+ return applet->priv->orient;
+}
+
+/* Applets cannot set their orientation, so API is not public. */
+static void
+mate_panel_applet_set_orient (MatePanelApplet *applet,
+ MatePanelAppletOrient orient)
+{
+ g_return_if_fail (PANEL_IS_APPLET (applet));
+
+ if (applet->priv->orient == orient)
+ return;
+
+ applet->priv->orient = orient;
+ g_signal_emit (G_OBJECT (applet),
+ mate_panel_applet_signals [CHANGE_ORIENT],
+ 0, orient);
+
+ g_object_notify (G_OBJECT (applet), "orient");
+}
+
+#if 0
+/* Locked should not be public API: it's not useful for applet writers to know
+ * if the applet is locked (as opposed to locked_down). */
+static gboolean
+mate_panel_applet_get_locked (MatePanelApplet *applet)
+{
+ g_return_val_if_fail (PANEL_IS_APPLET (applet), FALSE);
+
+ return applet->priv->locked;
+}
+#endif
+
+static void
+mate_panel_applet_set_locked (MatePanelApplet *applet,
+ gboolean locked)
+{
+ GtkAction *action;
+
+ g_return_if_fail (PANEL_IS_APPLET (applet));
+
+ if (applet->priv->locked == locked)
+ return;
+
+ applet->priv->locked = locked;
+
+ action = mate_panel_applet_menu_get_action (applet, "Lock");
+ g_signal_handlers_block_by_func (action,
+ mate_panel_applet_menu_cmd_lock,
+ applet);
+ gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action), locked);
+ g_signal_handlers_unblock_by_func (action,
+ mate_panel_applet_menu_cmd_lock,
+ applet);
+
+ mate_panel_applet_menu_update_actions (applet);
+
+ g_object_notify (G_OBJECT (applet), "locked");
+
+ if (applet->priv->connection) {
+ GError *error = NULL;
+
+ g_dbus_connection_emit_signal (applet->priv->connection,
+ NULL,
+ applet->priv->object_path,
+ MATE_PANEL_APPLET_INTERFACE,
+ locked ? "Lock" : "Unlock",
+ NULL, &error);
+ if (error) {
+ g_printerr ("Failed to send signal %s: %s\n",
+ locked ? "Lock" : "Unlock",
+ error->message);
+ g_error_free (error);
+ }
+ }
+}
+
+gboolean
+mate_panel_applet_get_locked_down (MatePanelApplet *applet)
+{
+ g_return_val_if_fail (PANEL_IS_APPLET (applet), FALSE);
+
+ return applet->priv->locked_down;
+}
+
+/* Applets cannot set the lockdown state, so API is not public. */
+static void
+mate_panel_applet_set_locked_down (MatePanelApplet *applet,
+ gboolean locked_down)
+{
+ g_return_if_fail (PANEL_IS_APPLET (applet));
+
+ if (applet->priv->locked_down == locked_down)
+ return;
+
+ applet->priv->locked_down = locked_down;
+ mate_panel_applet_menu_update_actions (applet);
+
+ g_object_notify (G_OBJECT (applet), "locked-down");
+}
+
+static Atom _net_wm_window_type = None;
+static Atom _net_wm_window_type_dock = None;
+static Atom _net_active_window = None;
+
+static void
+mate_panel_applet_init_atoms (Display *xdisplay)
+{
+ if (_net_wm_window_type == None)
+ _net_wm_window_type = XInternAtom (xdisplay,
+ "_NET_WM_WINDOW_TYPE",
+ False);
+
+ if (_net_wm_window_type_dock == None)
+ _net_wm_window_type_dock = XInternAtom (xdisplay,
+ "_NET_WM_WINDOW_TYPE_DOCK",
+ False);
+
+ if (_net_active_window == None)
+ _net_active_window = XInternAtom (xdisplay,
+ "_NET_ACTIVE_WINDOW",
+ False);
+}
+
+static Window
+mate_panel_applet_find_toplevel_dock_window (MatePanelApplet *applet,
+ Display *xdisplay)
+{
+ GtkWidget *toplevel;
+ Window xwin;
+ Window root, parent, *child;
+ int num_children;
+
+ toplevel = gtk_widget_get_toplevel (GTK_WIDGET (applet));
+ if (!gtk_widget_get_realized (toplevel))
+ return None;
+
+ xwin = GDK_WINDOW_XID (gtk_widget_get_window (toplevel));
+
+ child = NULL;
+ parent = root = None;
+ do {
+ Atom type_return;
+ Atom window_type;
+ int format_return;
+ gulong number_return, bytes_after_return;
+ guchar *data_return;
+
+ XGetWindowProperty (xdisplay,
+ xwin,
+ _net_wm_window_type,
+ 0, 1, False,
+ XA_ATOM,
+ &type_return, &format_return,
+ &number_return,
+ &bytes_after_return,
+ &data_return);
+
+ if (type_return == XA_ATOM) {
+ window_type = *(Atom *) data_return;
+
+ XFree (data_return);
+ data_return = NULL;
+
+ if (window_type == _net_wm_window_type_dock)
+ return xwin;
+ }
+
+ if (!XQueryTree (xdisplay,
+ xwin,
+ &root, &parent, &child,
+ (guint *) &num_children)) {
+ return None;
+ }
+
+ if (child && num_children > 0)
+ XFree (child);
+
+ xwin = parent;
+
+ } while (xwin != None && xwin != root);
+
+ return None;
+}
+
+/* This function
+ * 1) Gets the window id of the panel that contains the applet
+ * using XQueryTree and XGetWindowProperty to find an ancestor
+ * window with the _NET_WM_WINDOW_TYPE_DOCK window type.
+ * 2) Sends a _NET_ACTIVE_WINDOW message to get that panel focused
+ */
+void
+mate_panel_applet_request_focus (MatePanelApplet *applet,
+ guint32 timestamp)
+{
+ GdkScreen *screen;
+ GdkWindow *root;
+ GdkDisplay *display;
+ Display *xdisplay;
+ Window dock_xwindow;
+ Window xroot;
+ XEvent xev;
+
+ g_return_if_fail (PANEL_IS_APPLET (applet));
+
+ screen = gtk_widget_get_screen (GTK_WIDGET (applet));
+ root = gdk_screen_get_root_window (screen);
+ display = gdk_screen_get_display (screen);
+
+ xdisplay = GDK_DISPLAY_XDISPLAY (display);
+ xroot = GDK_WINDOW_XWINDOW (root);
+
+ mate_panel_applet_init_atoms (xdisplay);
+
+ dock_xwindow = mate_panel_applet_find_toplevel_dock_window (applet, xdisplay);
+ if (dock_xwindow == None)
+ return;
+
+ xev.xclient.type = ClientMessage;
+ xev.xclient.serial = 0;
+ xev.xclient.send_event = True;
+ xev.xclient.window = dock_xwindow;
+ xev.xclient.message_type = _net_active_window;
+ xev.xclient.format = 32;
+ xev.xclient.data.l[0] = 1; /* requestor type; we're an app, I guess */
+ xev.xclient.data.l[1] = timestamp;
+ xev.xclient.data.l[2] = None; /* "currently active window", supposedly */
+ xev.xclient.data.l[3] = 0;
+ xev.xclient.data.l[4] = 0;
+
+ XSendEvent (xdisplay,
+ xroot, False,
+ SubstructureRedirectMask | SubstructureNotifyMask,
+ &xev);
+}
+
+static GtkAction *
+mate_panel_applet_menu_get_action (MatePanelApplet *applet,
+ const gchar *action)
+{
+ return gtk_action_group_get_action (applet->priv->panel_action_group, action);
+}
+
+static void
+mate_panel_applet_menu_update_actions (MatePanelApplet *applet)
+{
+ gboolean locked = applet->priv->locked;
+ gboolean locked_down = applet->priv->locked_down;
+
+ g_object_set (mate_panel_applet_menu_get_action (applet, "Lock"),
+ "visible", !locked_down, NULL);
+ g_object_set (mate_panel_applet_menu_get_action (applet, "Move"),
+ "sensitive", !locked,
+ "visible", !locked_down,
+ NULL);
+ g_object_set (mate_panel_applet_menu_get_action (applet, "Remove"),
+ "sensitive", !locked,
+ "visible", !locked_down,
+ NULL);
+}
+
+static void
+mate_panel_applet_menu_cmd_remove (GtkAction *action,
+ MatePanelApplet *applet)
+{
+ GError *error = NULL;
+
+ if (!applet->priv->connection)
+ return;
+
+ g_dbus_connection_emit_signal (applet->priv->connection,
+ NULL,
+ applet->priv->object_path,
+ MATE_PANEL_APPLET_INTERFACE,
+ "RemoveFromPanel",
+ NULL, &error);
+ if (error) {
+ g_printerr ("Failed to send signal RemoveFromPanel: %s\n",
+ error->message);
+ g_error_free (error);
+ }
+}
+
+static void
+mate_panel_applet_menu_cmd_move (GtkAction *action,
+ MatePanelApplet *applet)
+{
+ GError *error = NULL;
+
+ if (!applet->priv->connection)
+ return;
+
+ g_dbus_connection_emit_signal (applet->priv->connection,
+ NULL,
+ applet->priv->object_path,
+ MATE_PANEL_APPLET_INTERFACE,
+ "Move",
+ NULL, &error);
+ if (error) {
+ g_printerr ("Failed to send signal RemoveFromPanel: %s\n",
+ error->message);
+ g_error_free (error);
+ }
+}
+
+static void
+mate_panel_applet_menu_cmd_lock (GtkAction *action,
+ MatePanelApplet *applet)
+{
+ gboolean locked;
+
+ locked = gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action));
+ mate_panel_applet_set_locked (applet, locked);
+}
+
+void
+mate_panel_applet_setup_menu (MatePanelApplet *applet,
+ const gchar *xml,
+ GtkActionGroup *applet_action_group)
+{
+ gchar *new_xml;
+ GError *error = NULL;
+
+ g_return_if_fail (PANEL_IS_APPLET (applet));
+ g_return_if_fail (xml != NULL);
+
+ if (applet->priv->applet_action_group)
+ return;
+
+ applet->priv->applet_action_group = g_object_ref (applet_action_group);
+ gtk_ui_manager_insert_action_group (applet->priv->ui_manager,
+ applet_action_group, 0);
+
+ new_xml = g_strdup_printf ("<ui><popup name=\"MatePanelAppletPopup\" action=\"AppletItems\">"
+ "<placeholder name=\"AppletItems\">%s\n</placeholder>\n"
+ "</popup></ui>\n", xml);
+ gtk_ui_manager_add_ui_from_string (applet->priv->ui_manager, new_xml, -1, &error);
+ g_free (new_xml);
+ gtk_ui_manager_ensure_update (applet->priv->ui_manager);
+ if (error) {
+ g_warning ("Error merging menus: %s\n", error->message);
+ g_error_free (error);
+ }
+}
+
+void
+mate_panel_applet_setup_menu_from_file (MatePanelApplet *applet,
+ const gchar *filename,
+ GtkActionGroup *applet_action_group)
+{
+ gchar *xml = NULL;
+ GError *error = NULL;
+
+ if (g_file_get_contents (filename, &xml, NULL, &error)) {
+ mate_panel_applet_setup_menu (applet, xml, applet_action_group);
+ } else {
+ g_warning ("%s", error->message);
+ g_error_free (error);
+ }
+
+ g_free (xml);
+}
+
+static void
+mate_panel_applet_finalize (GObject *object)
+{
+ MatePanelApplet *applet = MATE_PANEL_APPLET (object);
+
+ if (applet->priv->connection) {
+ if (applet->priv->object_id)
+ g_dbus_connection_unregister_object (applet->priv->connection,
+ applet->priv->object_id);
+ applet->priv->object_id = 0;
+ g_object_unref (applet->priv->connection);
+ applet->priv->connection = NULL;
+ }
+
+ if (applet->priv->object_path) {
+ g_free (applet->priv->object_path);
+ applet->priv->object_path = NULL;
+ }
+
+ mate_panel_applet_set_preferences_key (applet, NULL);
+
+ if (applet->priv->client)
+ g_object_unref (applet->priv->client);
+ applet->priv->client = NULL;
+
+ if (applet->priv->applet_action_group) {
+ g_object_unref (applet->priv->applet_action_group);
+ applet->priv->applet_action_group = NULL;
+ }
+
+ if (applet->priv->panel_action_group) {
+ g_object_unref (applet->priv->panel_action_group);
+ applet->priv->panel_action_group = NULL;
+ }
+
+ if (applet->priv->ui_manager) {
+ g_object_unref (applet->priv->ui_manager);
+ applet->priv->ui_manager = NULL;
+ }
+
+ g_free (applet->priv->size_hints);
+ g_free (applet->priv->prefs_key);
+ g_free (applet->priv->background);
+ g_free (applet->priv->id);
+
+ /* closure is owned by the factory */
+ applet->priv->closure = NULL;
+
+ G_OBJECT_CLASS (mate_panel_applet_parent_class)->finalize (object);
+}
+
+static gboolean
+container_has_focusable_child (GtkContainer *container)
+{
+ GtkWidget *child;
+ GList *list;
+ GList *t;
+ gboolean retval = FALSE;
+
+ list = gtk_container_get_children (container);
+
+ for (t = list; t; t = t->next) {
+ child = GTK_WIDGET (t->data);
+ if (gtk_widget_get_can_focus (child)) {
+ retval = TRUE;
+ break;
+ } else if (GTK_IS_CONTAINER (child)) {
+ retval = container_has_focusable_child (GTK_CONTAINER (child));
+ if (retval)
+ break;
+ }
+ }
+ g_list_free (list);
+ return retval;
+}
+
+static void
+mate_panel_applet_position_menu (GtkMenu *menu,
+ int *x,
+ int *y,
+ gboolean *push_in,
+ GtkWidget *widget)
+{
+ MatePanelApplet *applet;
+ GtkAllocation allocation;
+ GtkRequisition requisition;
+ GdkScreen *screen;
+ int menu_x = 0;
+ int menu_y = 0;
+ int pointer_x;
+ int pointer_y;
+
+ g_return_if_fail (PANEL_IS_APPLET (widget));
+
+ applet = MATE_PANEL_APPLET (widget);
+
+ screen = gtk_widget_get_screen (widget);
+
+ gtk_widget_size_request (GTK_WIDGET (menu), &requisition);
+ gdk_window_get_origin (gtk_widget_get_window (widget),
+ &menu_x, &menu_y);
+ gtk_widget_get_pointer (widget, &pointer_x, &pointer_y);
+
+ gtk_widget_get_allocation (widget, &allocation);
+
+ menu_x += allocation.x;
+ menu_y += allocation.y;
+
+ if (applet->priv->orient == MATE_PANEL_APPLET_ORIENT_UP ||
+ applet->priv->orient == MATE_PANEL_APPLET_ORIENT_DOWN) {
+ if (gtk_widget_get_direction (GTK_WIDGET (menu)) != GTK_TEXT_DIR_RTL) {
+ if (pointer_x < allocation.width &&
+ requisition.width < pointer_x)
+ menu_x += MIN (pointer_x,
+ allocation.width - requisition.width);
+ } else {
+ menu_x += allocation.width - requisition.width;
+ if (pointer_x > 0 && pointer_x < allocation.width &&
+ pointer_x < allocation.width - requisition.width) {
+ menu_x -= MIN (allocation.width - pointer_x,
+ allocation.width - requisition.width);
+ }
+ }
+ menu_x = MIN (menu_x, gdk_screen_get_width (screen) - requisition.width);
+
+ if (menu_y > gdk_screen_get_height (screen) / 2)
+ menu_y -= requisition.height;
+ else
+ menu_y += allocation.height;
+ } else {
+ if (pointer_y < allocation.height &&
+ requisition.height < pointer_y)
+ menu_y += MIN (pointer_y, allocation.height - requisition.height);
+ menu_y = MIN (menu_y, gdk_screen_get_height (screen) - requisition.height);
+
+ if (menu_x > gdk_screen_get_width (screen) / 2)
+ menu_x -= requisition.width;
+ else
+ menu_x += allocation.width;
+
+ }
+
+ *x = menu_x;
+ *y = menu_y;
+ *push_in = TRUE;
+}
+
+static void
+mate_panel_applet_menu_popup (MatePanelApplet *applet,
+ guint button,
+ guint32 time)
+{
+ GtkWidget *menu;
+
+ menu = gtk_ui_manager_get_widget (applet->priv->ui_manager,
+ "/MatePanelAppletPopup");
+ gtk_menu_popup (GTK_MENU (menu),
+ NULL, NULL,
+ (GtkMenuPositionFunc) mate_panel_applet_position_menu,
+ applet,
+ button, time);
+}
+
+static gboolean
+mate_panel_applet_can_focus (GtkWidget *widget)
+{
+ /*
+ * A MatePanelApplet widget can focus if it has a tooltip or it does
+ * not have any focusable children.
+ */
+ if (gtk_widget_get_has_tooltip (widget))
+ return TRUE;
+
+ if (!PANEL_IS_APPLET (widget))
+ return FALSE;
+
+ return !container_has_focusable_child (GTK_CONTAINER (widget));
+}
+
+/* Taken from libmatecomponentui/matecomponent/matecomponent-plug.c */
+static gboolean
+mate_panel_applet_button_event (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ GdkWindow *window;
+ GdkWindow *socket_window;
+ XEvent xevent;
+
+ if (!gtk_widget_is_toplevel (widget))
+ return FALSE;
+
+ window = gtk_widget_get_window (widget);
+ socket_window = gtk_plug_get_socket_window (GTK_PLUG (widget));
+
+ if (event->type == GDK_BUTTON_PRESS) {
+ xevent.xbutton.type = ButtonPress;
+
+ /* X does an automatic pointer grab on button press
+ * if we have both button press and release events
+ * selected.
+ * We don't want to hog the pointer on our parent.
+ */
+ gdk_display_pointer_ungrab
+ (gtk_widget_get_display (widget),
+ GDK_CURRENT_TIME);
+ } else {
+ xevent.xbutton.type = ButtonRelease;
+ }
+
+ xevent.xbutton.display = GDK_WINDOW_XDISPLAY (window);
+ xevent.xbutton.window = GDK_WINDOW_XWINDOW (socket_window);
+ xevent.xbutton.root = GDK_WINDOW_XWINDOW (gdk_screen_get_root_window
+ (gdk_drawable_get_screen (window)));
+ /*
+ * FIXME: the following might cause
+ * big problems for non-GTK apps
+ */
+ xevent.xbutton.x = 0;
+ xevent.xbutton.y = 0;
+ xevent.xbutton.x_root = 0;
+ xevent.xbutton.y_root = 0;
+ xevent.xbutton.state = event->state;
+ xevent.xbutton.button = event->button;
+ xevent.xbutton.same_screen = TRUE; /* FIXME ? */
+
+ gdk_error_trap_push ();
+
+ XSendEvent (GDK_WINDOW_XDISPLAY (window),
+ GDK_WINDOW_XWINDOW (socket_window),
+ False, NoEventMask, &xevent);
+
+ gdk_flush ();
+ gdk_error_trap_pop ();
+
+ return TRUE;
+}
+
+static gboolean
+mate_panel_applet_button_press (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ MatePanelApplet *applet = MATE_PANEL_APPLET (widget);
+
+ if (!container_has_focusable_child (GTK_CONTAINER (applet))) {
+ if (!gtk_widget_has_focus (widget)) {
+ gtk_widget_set_can_focus (widget, TRUE);
+ gtk_widget_grab_focus (widget);
+ }
+ }
+
+ if (event->button == 3) {
+ mate_panel_applet_menu_popup (applet, event->button, event->time);
+
+ return TRUE;
+ }
+
+ return mate_panel_applet_button_event (applet->priv->plug, event);
+}
+
+static gboolean
+mate_panel_applet_button_release (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ MatePanelApplet *applet = MATE_PANEL_APPLET (widget);
+
+ return mate_panel_applet_button_event (applet->priv->plug, event);
+}
+
+static gboolean
+mate_panel_applet_popup_menu (GtkWidget *widget)
+{
+ mate_panel_applet_menu_popup (MATE_PANEL_APPLET (widget), 3, GDK_CURRENT_TIME);
+
+ return TRUE;
+}
+
+static void
+mate_panel_applet_size_request (GtkWidget *widget, GtkRequisition *requisition)
+{
+ int focus_width = 0;
+
+ GTK_WIDGET_CLASS (mate_panel_applet_parent_class)->size_request (widget,
+ requisition);
+
+ if (!mate_panel_applet_can_focus (widget))
+ return;
+
+ /*
+ * We are deliberately ignoring focus-padding here to
+ * save valuable panel real estate.
+ */
+ gtk_widget_style_get (widget,
+ "focus-line-width", &focus_width,
+ NULL);
+
+ requisition->width += 2 * focus_width;
+ requisition->height += 2 * focus_width;
+}
+
+static void
+mate_panel_applet_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation)
+{
+ GtkAllocation child_allocation;
+ GtkBin *bin;
+ GtkWidget *child;
+ int border_width;
+ int focus_width = 0;
+ MatePanelApplet *applet;
+
+ if (!mate_panel_applet_can_focus (widget)) {
+ GTK_WIDGET_CLASS (mate_panel_applet_parent_class)->size_allocate (widget, allocation);
+ } else {
+ /*
+ * We are deliberately ignoring focus-padding here to
+ * save valuable panel real estate.
+ */
+ gtk_widget_style_get (widget,
+ "focus-line-width", &focus_width,
+ NULL);
+
+ border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
+
+ gtk_widget_set_allocation (widget, allocation);
+ bin = GTK_BIN (widget);
+
+ child_allocation.x = focus_width;
+ child_allocation.y = focus_width;
+
+ child_allocation.width = MAX (allocation->width - border_width * 2, 0);
+ child_allocation.height = MAX (allocation->height - border_width * 2, 0);
+
+ if (gtk_widget_get_realized (widget))
+ gdk_window_move_resize (gtk_widget_get_window (widget),
+ allocation->x + border_width,
+ allocation->y + border_width,
+ child_allocation.width,
+ child_allocation.height);
+
+ child_allocation.width = MAX (child_allocation.width - 2 * focus_width, 0);
+ child_allocation.height = MAX (child_allocation.height - 2 * focus_width, 0);
+
+ child = gtk_bin_get_child (bin);
+ if (child)
+ gtk_widget_size_allocate (child, &child_allocation);
+ }
+
+ applet = MATE_PANEL_APPLET (widget);
+
+ if (applet->priv->previous_height != allocation->height ||
+ applet->priv->previous_width != allocation->width) {
+ applet->priv->previous_height = allocation->height;
+ applet->priv->previous_width = allocation->width;
+
+ mate_panel_applet_handle_background (applet);
+ }
+}
+
+static gboolean mate_panel_applet_expose(GtkWidget* widget, GdkEventExpose* event)
+{
+ GtkAllocation allocation;
+ int border_width;
+ int focus_width = 0;
+ int x, y, width, height;
+
+ g_return_val_if_fail (PANEL_IS_APPLET (widget), FALSE);
+ g_return_val_if_fail (event != NULL, FALSE);
+
+ GTK_WIDGET_CLASS (mate_panel_applet_parent_class)->expose_event(widget, event);
+
+ if (!gtk_widget_has_focus (widget))
+ return FALSE;
+
+ gtk_widget_get_allocation(widget, &allocation);
+
+ /*
+ * We are deliberately ignoring focus-padding here to
+ * save valuable panel real estate.
+ */
+ gtk_widget_style_get (widget,
+ "focus-line-width", &focus_width,
+ NULL);
+
+ border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
+
+ x = allocation.x;
+ y = allocation.y;
+
+ width = allocation.width - 2 * border_width;
+ height = allocation.height - 2 * border_width;
+
+ gtk_paint_focus (gtk_widget_get_style (widget),
+ gtk_widget_get_window (widget),
+ gtk_widget_get_state (widget),
+ &event->area, widget, "mate_panel_applet",
+ x, y, width, height);
+
+ return FALSE;
+}
+
+static gboolean
+mate_panel_applet_focus (GtkWidget *widget,
+ GtkDirectionType dir)
+{
+ gboolean ret;
+ GtkWidget *previous_focus_child;
+ MatePanelApplet *applet;
+
+ g_return_val_if_fail (PANEL_IS_APPLET (widget), FALSE);
+
+ applet = MATE_PANEL_APPLET (widget);
+ if (applet->priv->moving_focus_out) {
+ /*
+ * Applet will retain focus if there is nothing else on the
+ * panel to get focus
+ */
+ applet->priv->moving_focus_out = FALSE;
+ return FALSE;
+ }
+
+ previous_focus_child = gtk_container_get_focus_child (GTK_CONTAINER (widget));
+ if (!previous_focus_child && !gtk_widget_has_focus (widget)) {
+ if (gtk_widget_get_has_tooltip (widget)) {
+ gtk_widget_set_can_focus (widget, TRUE);
+ gtk_widget_grab_focus (widget);
+ gtk_widget_set_can_focus (widget, FALSE);
+ return TRUE;
+ }
+ }
+ ret = GTK_WIDGET_CLASS (mate_panel_applet_parent_class)->focus (widget, dir);
+
+ if (!ret && !previous_focus_child) {
+ if (!gtk_widget_has_focus (widget)) {
+ /*
+ * Applet does not have a widget which can focus so set
+ * the focus on the applet unless it already had focus
+ * because it had a tooltip.
+ */
+ gtk_widget_set_can_focus (widget, TRUE);
+ gtk_widget_grab_focus (widget);
+ gtk_widget_set_can_focus (widget, FALSE);
+ ret = TRUE;
+ }
+ }
+
+ return ret;
+}
+
+static gboolean
+mate_panel_applet_parse_color (const gchar *color_str,
+ GdkColor *color)
+{
+ int r, g, b;
+
+ g_assert (color_str && color);
+
+ if (sscanf (color_str, "%4x%4x%4x", &r, &g, &b) != 3)
+ return FALSE;
+
+ color->red = r;
+ color->green = g;
+ color->blue = b;
+
+ return TRUE;
+}
+
+static gboolean
+mate_panel_applet_parse_pixmap_str (const char *str,
+ GdkNativeWindow *xid,
+ int *x,
+ int *y)
+{
+ char **elements;
+ char *tmp;
+
+ g_return_val_if_fail (str != NULL, FALSE);
+ g_return_val_if_fail (xid != NULL, FALSE);
+ g_return_val_if_fail (x != NULL, FALSE);
+ g_return_val_if_fail (y != NULL, FALSE);
+
+ elements = g_strsplit (str, ",", -1);
+
+ if (!elements)
+ return FALSE;
+
+ if (!elements [0] || !*elements [0] ||
+ !elements [1] || !*elements [1] ||
+ !elements [2] || !*elements [2])
+ goto ERROR_AND_FREE;
+
+ *xid = strtol (elements [0], &tmp, 10);
+ if (tmp == elements [0])
+ goto ERROR_AND_FREE;
+
+ *x = strtol (elements [1], &tmp, 10);
+ if (tmp == elements [1])
+ goto ERROR_AND_FREE;
+
+ *y = strtol (elements [2], &tmp, 10);
+ if (tmp == elements [2])
+ goto ERROR_AND_FREE;
+
+ g_strfreev (elements);
+ return TRUE;
+
+ ERROR_AND_FREE:
+ g_strfreev (elements);
+ return FALSE;
+}
+
+static GdkPixmap *
+mate_panel_applet_get_pixmap (MatePanelApplet *applet,
+ GdkNativeWindow xid,
+ int x,
+ int y)
+{
+ gboolean display_grabbed;
+ GdkPixmap *pixmap;
+ GdkDisplay *display;
+ GdkPixmap *retval;
+ GdkWindow *window;
+ int width;
+ int height;
+ cairo_t *cr;
+ cairo_pattern_t *pattern;
+
+ g_return_val_if_fail (PANEL_IS_APPLET (applet), NULL);
+
+ if (!gtk_widget_get_realized (GTK_WIDGET (applet)))
+ return NULL;
+
+ display = gdk_display_get_default ();
+ display_grabbed = FALSE;
+
+ window = gtk_widget_get_window (GTK_WIDGET (applet));
+
+ pixmap = gdk_pixmap_lookup_for_display (display, xid);
+ if (pixmap)
+ g_object_ref (pixmap);
+ else {
+ display_grabbed = TRUE;
+ gdk_x11_display_grab (display);
+ pixmap = gdk_pixmap_foreign_new_for_display (display, xid);
+ }
+
+ /* This can happen if the user changes the background very fast.
+ * We'll get the next update, so it's not a big deal. */
+ if (pixmap == NULL) {
+ if (display_grabbed)
+ gdk_x11_display_ungrab (display);
+ return NULL;
+ }
+
+ #if GTK_CHECK_VERSION(3, 0, 0)
+ width = gdk_window_get_width(window);
+ height = gdk_window_get_height(window);
+ #else
+ gdk_drawable_get_size(GDK_DRAWABLE(window), &width, &height);
+ #endif
+
+ retval = gdk_pixmap_new (window, width, height, -1);
+
+ /* the pixmap has no colormap, and we need one */
+ gdk_drawable_set_colormap (GDK_DRAWABLE (pixmap),
+ gdk_drawable_get_colormap (window));
+
+ cr = gdk_cairo_create (GDK_DRAWABLE (retval));
+ gdk_cairo_set_source_pixmap (cr, pixmap, -x, -y);
+ pattern = cairo_get_source (cr);
+ cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT);
+
+ cairo_rectangle (cr, 0, 0, width, height);
+ cairo_fill (cr);
+
+ cairo_destroy (cr);
+
+ g_object_unref (pixmap);
+
+ if (display_grabbed)
+ gdk_x11_display_ungrab (display);
+
+ return retval;
+}
+
+static MatePanelAppletBackgroundType
+mate_panel_applet_handle_background_string (MatePanelApplet *applet,
+ GdkColor *color,
+ GdkPixmap **pixmap)
+{
+ MatePanelAppletBackgroundType retval;
+ char **elements;
+
+ retval = PANEL_NO_BACKGROUND;
+
+ if (!gtk_widget_get_realized (GTK_WIDGET (applet)) || !applet->priv->background)
+ return retval;
+
+ elements = g_strsplit (applet->priv->background, ":", -1);
+
+ if (elements [0] && !strcmp (elements [0], "none" )) {
+ retval = PANEL_NO_BACKGROUND;
+
+ } else if (elements [0] && !strcmp (elements [0], "color")) {
+ g_return_val_if_fail (color != NULL, PANEL_NO_BACKGROUND);
+
+ if (!elements [1] || !mate_panel_applet_parse_color (elements [1], color)) {
+
+ g_warning ("Incomplete '%s' background type received", elements [0]);
+ g_strfreev (elements);
+ return PANEL_NO_BACKGROUND;
+ }
+
+ retval = PANEL_COLOR_BACKGROUND;
+
+ } else if (elements [0] && !strcmp (elements [0], "pixmap")) {
+ GdkNativeWindow pixmap_id;
+ int x, y;
+
+ g_return_val_if_fail (pixmap != NULL, PANEL_NO_BACKGROUND);
+
+ if (!mate_panel_applet_parse_pixmap_str (elements [1], &pixmap_id, &x, &y)) {
+ g_warning ("Incomplete '%s' background type received: %s",
+ elements [0], elements [1]);
+
+ g_strfreev (elements);
+ return PANEL_NO_BACKGROUND;
+ }
+
+ *pixmap = mate_panel_applet_get_pixmap (applet, pixmap_id, x, y);
+ if (!*pixmap) {
+ g_warning ("Failed to get pixmap %s", elements [1]);
+ g_strfreev (elements);
+ return PANEL_NO_BACKGROUND;
+ }
+
+ retval = PANEL_PIXMAP_BACKGROUND;
+ } else
+ g_warning ("Unknown background type received");
+
+ g_strfreev (elements);
+
+ return retval;
+}
+
+MatePanelAppletBackgroundType
+mate_panel_applet_get_background (MatePanelApplet *applet,
+ GdkColor *color,
+ GdkPixmap **pixmap)
+{
+ g_return_val_if_fail (PANEL_IS_APPLET (applet), PANEL_NO_BACKGROUND);
+
+ /* initial sanity */
+ if (pixmap != NULL)
+ *pixmap = NULL;
+ if (color != NULL)
+ memset (color, 0, sizeof (GdkColor));
+
+ return mate_panel_applet_handle_background_string (applet, color, pixmap);
+}
+
+static void
+mate_panel_applet_set_background_string (MatePanelApplet *applet,
+ const gchar *background)
+{
+ if (applet->priv->background == background)
+ return;
+
+ if (g_strcmp0 (applet->priv->background, background) == 0)
+ return;
+
+ if (applet->priv->background)
+ g_free (applet->priv->background);
+ applet->priv->background = background ? g_strdup (background) : NULL;
+ mate_panel_applet_handle_background (applet);
+
+ g_object_notify (G_OBJECT (applet), "background");
+}
+
+static void
+mate_panel_applet_update_background_for_widget (GtkWidget *widget,
+ MatePanelAppletBackgroundType type,
+ GdkColor *color,
+ GdkPixmap *pixmap)
+{
+ GtkRcStyle *rc_style;
+ GtkStyle *style;
+
+ /* reset style */
+ gtk_widget_set_style (widget, NULL);
+ rc_style = gtk_rc_style_new ();
+ gtk_widget_modify_style (widget, rc_style);
+ g_object_unref (rc_style);
+
+ switch (type) {
+ case PANEL_NO_BACKGROUND:
+ break;
+ case PANEL_COLOR_BACKGROUND:
+ gtk_widget_modify_bg (widget, GTK_STATE_NORMAL, color);
+ break;
+ case PANEL_PIXMAP_BACKGROUND:
+ style = gtk_style_copy (gtk_widget_get_style (widget));
+ if (style->bg_pixmap[GTK_STATE_NORMAL])
+ g_object_unref (style->bg_pixmap[GTK_STATE_NORMAL]);
+ style->bg_pixmap[GTK_STATE_NORMAL] = g_object_ref (pixmap);
+ gtk_widget_set_style (widget, style);
+ g_object_unref (style);
+ break;
+ default:
+ g_assert_not_reached ();
+ break;
+ }
+}
+
+static void
+mate_panel_applet_handle_background (MatePanelApplet *applet)
+{
+ MatePanelAppletBackgroundType type;
+ GdkColor color;
+ GdkPixmap *pixmap;
+
+ type = mate_panel_applet_get_background (applet, &color, &pixmap);
+
+ if (applet->priv->background_widget)
+ mate_panel_applet_update_background_for_widget (applet->priv->background_widget,
+ type, &color, pixmap);
+
+ switch (type) {
+ case PANEL_NO_BACKGROUND:
+ g_signal_emit (G_OBJECT (applet),
+ mate_panel_applet_signals [CHANGE_BACKGROUND],
+ 0, PANEL_NO_BACKGROUND, NULL, NULL);
+ break;
+ case PANEL_COLOR_BACKGROUND:
+ g_signal_emit (G_OBJECT (applet),
+ mate_panel_applet_signals [CHANGE_BACKGROUND],
+ 0, PANEL_COLOR_BACKGROUND, &color, NULL);
+ break;
+ case PANEL_PIXMAP_BACKGROUND:
+ g_signal_emit (G_OBJECT (applet),
+ mate_panel_applet_signals [CHANGE_BACKGROUND],
+ 0, PANEL_PIXMAP_BACKGROUND, NULL, pixmap);
+
+ g_object_unref (pixmap);
+ break;
+ default:
+ g_assert_not_reached ();
+ break;
+ }
+}
+
+static void
+mate_panel_applet_realize (GtkWidget *widget)
+{
+ GTK_WIDGET_CLASS (mate_panel_applet_parent_class)->realize (widget);
+
+ if (MATE_PANEL_APPLET (widget)->priv->background)
+ mate_panel_applet_handle_background (MATE_PANEL_APPLET (widget));
+}
+
+static void
+mate_panel_applet_move_focus_out_of_applet (MatePanelApplet *applet,
+ GtkDirectionType dir)
+{
+ GtkWidget *toplevel;
+
+ applet->priv->moving_focus_out = TRUE;
+ toplevel = gtk_widget_get_toplevel (GTK_WIDGET (applet));
+ g_return_if_fail (toplevel);
+
+ gtk_widget_child_focus (toplevel, dir);
+ applet->priv->moving_focus_out = FALSE;
+}
+
+static void
+mate_panel_applet_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ MatePanelApplet *applet = MATE_PANEL_APPLET (object);
+
+ switch (prop_id) {
+ case PROP_ID:
+ g_value_set_string (value, applet->priv->id);
+ break;
+ case PROP_CLOSURE:
+ g_value_set_pointer (value, applet->priv->closure);
+ break;
+ case PROP_CONNECTION:
+ g_value_set_object (value, applet->priv->connection);
+ break;
+ case PROP_PREFS_KEY:
+ g_value_set_string (value, applet->priv->prefs_key);
+ break;
+ case PROP_ORIENT:
+ g_value_set_uint (value, applet->priv->orient);
+ break;
+ case PROP_SIZE:
+ g_value_set_uint (value, applet->priv->size);
+ break;
+ case PROP_BACKGROUND:
+ g_value_set_string (value, applet->priv->background);
+ break;
+ case PROP_FLAGS:
+ g_value_set_uint (value, applet->priv->flags);
+ break;
+ case PROP_SIZE_HINTS: {
+ GVariant **children;
+ GVariant *variant;
+ gint i;
+
+ children = g_new (GVariant *, applet->priv->size_hints_len);
+ for (i = 0; i < applet->priv->size_hints_len; i++)
+ children[i] = g_variant_new_int32 (applet->priv->size_hints[i]);
+ variant = g_variant_new_array (G_VARIANT_TYPE_INT32,
+ children, applet->priv->size_hints_len);
+ g_free (children);
+ g_value_set_pointer (value, variant);
+ }
+ break;
+ case PROP_LOCKED:
+ g_value_set_boolean (value, applet->priv->locked);
+ break;
+ case PROP_LOCKED_DOWN:
+ g_value_set_boolean (value, applet->priv->locked_down);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ }
+}
+
+static void
+mate_panel_applet_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ MatePanelApplet *applet = MATE_PANEL_APPLET (object);
+
+ switch (prop_id) {
+ case PROP_ID:
+ applet->priv->id = g_value_dup_string (value);
+ break;
+ case PROP_CLOSURE:
+ applet->priv->closure = g_value_get_pointer (value);
+ g_closure_set_marshal (applet->priv->closure,
+ mate_panel_applet_marshal_BOOLEAN__STRING);
+ break;
+ case PROP_CONNECTION:
+ applet->priv->connection = g_value_dup_object (value);
+ break;
+ case PROP_PREFS_KEY:
+ mate_panel_applet_set_preferences_key (applet, g_value_get_string (value));
+ break;
+ case PROP_ORIENT:
+ mate_panel_applet_set_orient (applet, g_value_get_uint (value));
+ break;
+ case PROP_SIZE:
+ mate_panel_applet_set_size (applet, g_value_get_uint (value));
+ break;
+ case PROP_BACKGROUND:
+ mate_panel_applet_set_background_string (applet, g_value_get_string (value));
+ break;
+ case PROP_FLAGS:
+ mate_panel_applet_set_flags (applet, g_value_get_uint (value));
+ break;
+ case PROP_SIZE_HINTS: {
+ const int *size_hints;
+ gsize n_elements;
+
+ size_hints = g_variant_get_fixed_array (g_value_get_pointer (value),
+ &n_elements, sizeof (gint32));
+ mate_panel_applet_set_size_hints (applet, size_hints, n_elements, 0);
+ }
+ break;
+ case PROP_LOCKED:
+ mate_panel_applet_set_locked (applet, g_value_get_boolean (value));
+ break;
+ case PROP_LOCKED_DOWN:
+ mate_panel_applet_set_locked_down (applet, g_value_get_boolean (value));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ }
+}
+
+static void
+add_tab_bindings (GtkBindingSet *binding_set,
+ GdkModifierType modifiers,
+ GtkDirectionType direction)
+{
+ gtk_binding_entry_add_signal (binding_set, GDK_Tab, modifiers,
+ "move_focus_out_of_applet", 1,
+ GTK_TYPE_DIRECTION_TYPE, direction);
+ gtk_binding_entry_add_signal (binding_set, GDK_KP_Tab, modifiers,
+ "move_focus_out_of_applet", 1,
+ GTK_TYPE_DIRECTION_TYPE, direction);
+}
+
+static void
+mate_panel_applet_setup (MatePanelApplet *applet)
+{
+ GValue value = {0, };
+ GArray *params;
+ gint i;
+ gboolean ret;
+
+ g_assert (applet->priv->id != NULL &&
+ applet->priv->closure != NULL);
+
+ params = g_array_sized_new (FALSE, TRUE, sizeof (GValue), 2);
+ value.g_type = 0;
+ g_value_init (&value, G_TYPE_OBJECT);
+ g_value_set_object (&value, G_OBJECT (applet));
+ g_array_append_val (params, value);
+
+ value.g_type = 0;
+ g_value_init (&value, G_TYPE_STRING);
+ g_value_set_string (&value, applet->priv->id);
+ g_array_append_val (params, value);
+
+ value.g_type = 0;
+ g_value_init (&value, G_TYPE_BOOLEAN);
+
+ g_closure_invoke (applet->priv->closure,
+ &value, params->len,
+ (GValue *) params->data,
+ NULL);
+
+ for (i = 0; i < params->len; i++)
+ g_value_unset (&g_array_index (params, GValue, i));
+ g_array_free (params, TRUE);
+
+ ret = g_value_get_boolean (&value);
+ g_value_unset (&value);
+
+ if (!ret) { /* FIXME */
+ g_warning ("need to free the control here");
+
+ return;
+ }
+}
+
+static void
+mate_panel_applet_init (MatePanelApplet *applet)
+{
+ applet->priv = MATE_PANEL_APPLET_GET_PRIVATE (applet);
+
+ applet->priv->flags = MATE_PANEL_APPLET_FLAGS_NONE;
+ applet->priv->orient = MATE_PANEL_APPLET_ORIENT_UP;
+ applet->priv->size = 24;
+
+ applet->priv->client = mateconf_client_get_default ();
+
+ applet->priv->panel_action_group = gtk_action_group_new ("PanelActions");
+ gtk_action_group_set_translation_domain (applet->priv->panel_action_group, GETTEXT_PACKAGE);
+ gtk_action_group_add_actions (applet->priv->panel_action_group,
+ menu_entries,
+ G_N_ELEMENTS (menu_entries),
+ applet);
+ gtk_action_group_add_toggle_actions (applet->priv->panel_action_group,
+ menu_toggle_entries,
+ G_N_ELEMENTS (menu_toggle_entries),
+ applet);
+
+ applet->priv->ui_manager = gtk_ui_manager_new ();
+ gtk_ui_manager_insert_action_group (applet->priv->ui_manager,
+ applet->priv->panel_action_group, 1);
+ gtk_ui_manager_add_ui_from_string (applet->priv->ui_manager,
+ panel_menu_ui, -1, NULL);
+
+
+
+
+ applet->priv->plug = gtk_plug_new (0);
+ g_signal_connect_swapped (G_OBJECT (applet->priv->plug), "embedded",
+ G_CALLBACK (mate_panel_applet_setup),
+ applet);
+
+ gtk_widget_set_events (GTK_WIDGET (applet),
+ GDK_BUTTON_PRESS_MASK |
+ GDK_BUTTON_RELEASE_MASK);
+
+ gtk_container_add (GTK_CONTAINER (applet->priv->plug), GTK_WIDGET (applet));
+}
+
+static void mate_panel_applet_constructed(GObject* object)
+{
+ MatePanelApplet* applet = MATE_PANEL_APPLET(object);
+
+ /* Voy a renombrar la clase para que se pueda tener compatibilidad con todos
+ * los estilos visuales de GTK2
+ *
+ * Issue #27
+ */
+ gtk_widget_set_name(GTK_WIDGET(applet), "PanelApplet");
+
+ mate_panel_applet_register_object (applet);
+}
+
+static void
+mate_panel_applet_class_init (MatePanelAppletClass *klass)
+{
+ GObjectClass *gobject_class = (GObjectClass *) klass;
+ GtkObjectClass *object_class = (GtkObjectClass *) klass;
+ GtkWidgetClass *widget_class = (GtkWidgetClass *) klass;
+ GtkBindingSet *binding_set;
+
+ gobject_class->get_property = mate_panel_applet_get_property;
+ gobject_class->set_property = mate_panel_applet_set_property;
+ gobject_class->constructed = mate_panel_applet_constructed;
+ klass->move_focus_out_of_applet = mate_panel_applet_move_focus_out_of_applet;
+
+ widget_class->button_press_event = mate_panel_applet_button_press;
+ widget_class->button_release_event = mate_panel_applet_button_release;
+ widget_class->size_request = mate_panel_applet_size_request;
+ widget_class->size_allocate = mate_panel_applet_size_allocate;
+ widget_class->expose_event = mate_panel_applet_expose;
+ widget_class->focus = mate_panel_applet_focus;
+ widget_class->realize = mate_panel_applet_realize;
+ widget_class->popup_menu = mate_panel_applet_popup_menu;
+
+ gobject_class->finalize = mate_panel_applet_finalize;
+
+ g_type_class_add_private (klass, sizeof (MatePanelAppletPrivate));
+
+ g_object_class_install_property (gobject_class,
+ PROP_ID,
+ g_param_spec_string ("id",
+ "Id",
+ "The Applet identifier",
+ NULL,
+ G_PARAM_CONSTRUCT_ONLY |
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_CLOSURE,
+ g_param_spec_pointer ("closure",
+ "GClosure",
+ "The Applet closure",
+ G_PARAM_CONSTRUCT_ONLY |
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_CONNECTION,
+ g_param_spec_object ("connection",
+ "Connection",
+ "The DBus Connection",
+ G_TYPE_DBUS_CONNECTION,
+ G_PARAM_CONSTRUCT_ONLY |
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_PREFS_KEY,
+ g_param_spec_string ("prefs-key",
+ "PrefsKey",
+ "MateConf Preferences Key",
+ NULL,
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_ORIENT,
+ g_param_spec_uint ("orient",
+ "Orient",
+ "Panel Applet Orientation",
+ 0, G_MAXUINT, 0, /* FIXME */
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_SIZE,
+ g_param_spec_uint ("size",
+ "Size",
+ "Panel Applet Size",
+ 0, G_MAXUINT, 0,
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_BACKGROUND,
+ g_param_spec_string ("background",
+ "Background",
+ "Panel Applet Background",
+ NULL,
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_FLAGS,
+ g_param_spec_uint ("flags",
+ "Flags",
+ "Panel Applet flags",
+ 0, G_MAXUINT, 0, /* FIXME */
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_SIZE_HINTS,
+ /* FIXME: value_array? */
+ g_param_spec_pointer ("size-hints",
+ "SizeHints",
+ "Panel Applet Size Hints",
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_LOCKED,
+ g_param_spec_boolean ("locked",
+ "Locked",
+ "Whether Panel Applet is locked",
+ FALSE,
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_LOCKED_DOWN,
+ g_param_spec_boolean ("locked-down",
+ "LockedDown",
+ "Whether Panel Applet is locked down",
+ FALSE,
+ G_PARAM_READWRITE));
+
+ mate_panel_applet_signals [CHANGE_ORIENT] =
+ g_signal_new ("change_orient",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (MatePanelAppletClass, change_orient),
+ NULL,
+ NULL,
+ mate_panel_applet_marshal_VOID__UINT,
+ G_TYPE_NONE,
+ 1,
+ G_TYPE_UINT);
+
+ mate_panel_applet_signals [CHANGE_SIZE] =
+ g_signal_new ("change_size",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (MatePanelAppletClass, change_size),
+ NULL,
+ NULL,
+ mate_panel_applet_marshal_VOID__INT,
+ G_TYPE_NONE,
+ 1,
+ G_TYPE_INT);
+
+ mate_panel_applet_signals [CHANGE_BACKGROUND] =
+ g_signal_new ("change_background",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (MatePanelAppletClass, change_background),
+ NULL,
+ NULL,
+ mate_panel_applet_marshal_VOID__ENUM_BOXED_OBJECT,
+ G_TYPE_NONE,
+ 3,
+ PANEL_TYPE_MATE_PANEL_APPLET_BACKGROUND_TYPE,
+ GDK_TYPE_COLOR,
+ GDK_TYPE_PIXMAP);
+
+ mate_panel_applet_signals [MOVE_FOCUS_OUT_OF_APPLET] =
+ g_signal_new ("move_focus_out_of_applet",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (MatePanelAppletClass, move_focus_out_of_applet),
+ NULL,
+ NULL,
+ mate_panel_applet_marshal_VOID__ENUM,
+ G_TYPE_NONE,
+ 1,
+ GTK_TYPE_DIRECTION_TYPE);
+
+ binding_set = gtk_binding_set_by_class (object_class);
+ add_tab_bindings (binding_set, 0, GTK_DIR_TAB_FORWARD);
+ add_tab_bindings (binding_set, GDK_SHIFT_MASK, GTK_DIR_TAB_BACKWARD);
+ add_tab_bindings (binding_set, GDK_CONTROL_MASK, GTK_DIR_TAB_FORWARD);
+ add_tab_bindings (binding_set, GDK_CONTROL_MASK | GDK_SHIFT_MASK, GTK_DIR_TAB_BACKWARD);
+}
+
+GtkWidget* mate_panel_applet_new(void)
+{
+ MatePanelApplet* applet = g_object_new(PANEL_TYPE_APPLET, NULL);
+
+ return GTK_WIDGET(applet);
+}
+
+static void
+method_call_cb (GDBusConnection *connection,
+ const gchar *sender,
+ const gchar *object_path,
+ const gchar *interface_name,
+ const gchar *method_name,
+ GVariant *parameters,
+ GDBusMethodInvocation *invocation,
+ gpointer user_data)
+{
+ MatePanelApplet *applet = MATE_PANEL_APPLET (user_data);
+
+ if (g_strcmp0 (method_name, "PopupMenu") == 0) {
+ guint button;
+ guint time;
+
+ g_variant_get (parameters, "(uu)", &button, &time);
+ mate_panel_applet_menu_popup (applet, button, time);
+
+ g_dbus_method_invocation_return_value (invocation, NULL);
+ }
+}
+
+static GVariant *
+get_property_cb (GDBusConnection *connection,
+ const gchar *sender,
+ const gchar *object_path,
+ const gchar *interface_name,
+ const gchar *property_name,
+ GError **error,
+ gpointer user_data)
+{
+ MatePanelApplet *applet = MATE_PANEL_APPLET (user_data);
+ GVariant *retval = NULL;
+
+ if (g_strcmp0 (property_name, "PrefsKey") == 0) {
+ retval = g_variant_new_string (applet->priv->prefs_key ?
+ applet->priv->prefs_key : "");
+ } else if (g_strcmp0 (property_name, "Orient") == 0) {
+ retval = g_variant_new_uint32 (applet->priv->orient);
+ } else if (g_strcmp0 (property_name, "Size") == 0) {
+ retval = g_variant_new_uint32 (applet->priv->size);
+ } else if (g_strcmp0 (property_name, "Background") == 0) {
+ retval = g_variant_new_string (applet->priv->background ?
+ applet->priv->background : "");
+ } else if (g_strcmp0 (property_name, "Flags") == 0) {
+ retval = g_variant_new_uint32 (applet->priv->flags);
+ } else if (g_strcmp0 (property_name, "SizeHints") == 0) {
+ GVariant **children;
+ gint i;
+
+ children = g_new (GVariant *, applet->priv->size_hints_len);
+ for (i = 0; i < applet->priv->size_hints_len; i++)
+ children[i] = g_variant_new_int32 (applet->priv->size_hints[i]);
+ retval = g_variant_new_array (G_VARIANT_TYPE_INT32,
+ children, applet->priv->size_hints_len);
+ g_free (children);
+ } else if (g_strcmp0 (property_name, "Locked") == 0) {
+ retval = g_variant_new_boolean (applet->priv->locked);
+ } else if (g_strcmp0 (property_name, "LockedDown") == 0) {
+ retval = g_variant_new_boolean (applet->priv->locked_down);
+ }
+
+ return retval;
+}
+
+static gboolean
+set_property_cb (GDBusConnection *connection,
+ const gchar *sender,
+ const gchar *object_path,
+ const gchar *interface_name,
+ const gchar *property_name,
+ GVariant *value,
+ GError **error,
+ gpointer user_data)
+{
+ MatePanelApplet *applet = MATE_PANEL_APPLET (user_data);
+
+ if (g_strcmp0 (property_name, "PrefsKey") == 0) {
+ mate_panel_applet_set_preferences_key (applet, g_variant_get_string (value, NULL));
+ } else if (g_strcmp0 (property_name, "Orient") == 0) {
+ mate_panel_applet_set_orient (applet, g_variant_get_uint32 (value));
+ } else if (g_strcmp0 (property_name, "Size") == 0) {
+ mate_panel_applet_set_size (applet, g_variant_get_uint32 (value));
+ } else if (g_strcmp0 (property_name, "Background") == 0) {
+ mate_panel_applet_set_background_string (applet, g_variant_get_string (value, NULL));
+ } else if (g_strcmp0 (property_name, "Flags") == 0) {
+ mate_panel_applet_set_flags (applet, g_variant_get_uint32 (value));
+ } else if (g_strcmp0 (property_name, "SizeHints") == 0) {
+ const int *size_hints;
+ gsize n_elements;
+
+ size_hints = g_variant_get_fixed_array (value, &n_elements, sizeof (gint32));
+ mate_panel_applet_set_size_hints (applet, size_hints, n_elements, 0);
+ } else if (g_strcmp0 (property_name, "Locked") == 0) {
+ mate_panel_applet_set_locked (applet, g_variant_get_boolean (value));
+ } else if (g_strcmp0 (property_name, "LockedDown") == 0) {
+ mate_panel_applet_set_locked_down (applet, g_variant_get_boolean (value));
+ }
+
+ return TRUE;
+}
+
+static const gchar introspection_xml[] =
+ "<node>"
+ "<interface name='org.mate.panel.applet.Applet'>"
+ "<method name='PopupMenu'>"
+ "<arg name='button' type='u' direction='in'/>"
+ "<arg name='time' type='u' direction='in'/>"
+ "</method>"
+ "<property name='PrefsKey' type='s' access='readwrite'/>"
+ "<property name='Orient' type='u' access='readwrite' />"
+ "<property name='Size' type='u' access='readwrite'/>"
+ "<property name='Background' type='s' access='readwrite'/>"
+ "<property name='Flags' type='u' access='readwrite'/>"
+ "<property name='SizeHints' type='ai' access='readwrite'/>"
+ "<property name='Locked' type='b' access='readwrite'/>"
+ "<property name='LockedDown' type='b' access='readwrite'/>"
+ "<signal name='Move' />"
+ "<signal name='RemoveFromPanel' />"
+ "<signal name='Lock' />"
+ "<signal name='Unlock' />"
+ "</interface>"
+ "</node>";
+
+static const GDBusInterfaceVTable interface_vtable = {
+ method_call_cb,
+ get_property_cb,
+ set_property_cb
+};
+
+static GDBusNodeInfo *introspection_data = NULL;
+
+static void
+mate_panel_applet_register_object (MatePanelApplet *applet)
+{
+ GError *error = NULL;
+ static gint id = 0;
+
+ if (!introspection_data)
+ introspection_data = g_dbus_node_info_new_for_xml (introspection_xml, NULL);
+
+ applet->priv->object_path = g_strdup_printf (MATE_PANEL_APPLET_OBJECT_PATH, applet->priv->id, id++);
+ applet->priv->object_id =
+ g_dbus_connection_register_object (applet->priv->connection,
+ applet->priv->object_path,
+ introspection_data->interfaces[0],
+ &interface_vtable,
+ applet, NULL,
+ &error);
+ if (!applet->priv->object_id) {
+ g_printerr ("Failed to register object %s: %s\n", applet->priv->object_path, error->message);
+ g_error_free (error);
+ }
+}
+
+static void mate_panel_applet_factory_main_finalized(gpointer data, GObject* object)
+{
+ gtk_main_quit();
+
+ if (introspection_data)
+ {
+ g_dbus_node_info_unref(introspection_data);
+ introspection_data = NULL;
+ }
+}
+
+static int (*_x_error_func) (Display *, XErrorEvent *);
+
+static int
+_x_error_handler (Display *display, XErrorEvent *error)
+{
+ if (!error->error_code)
+ return 0;
+
+ /* If we got a BadDrawable or a BadWindow, we ignore it for now.
+ * FIXME: We need to somehow distinguish real errors from
+ * X-server-induced errors. Keeping a list of windows for which we
+ * will ignore BadDrawables would be a good idea. */
+ if (error->error_code == BadDrawable ||
+ error->error_code == BadWindow)
+ return 0;
+
+ return _x_error_func (display, error);
+}
+
+/*
+ * To do graphical embedding in the X window system, MATE Panel
+ * uses the classic foreign-window-reparenting trick. The
+ * GtkPlug/GtkSocket widgets are used for this purpose. However,
+ * serious robustness problems arise if the GtkSocket end of the
+ * connection unexpectedly dies. The X server sends out DestroyNotify
+ * events for the descendants of the GtkPlug (i.e., your embedded
+ * component's windows) in effectively random order. Furthermore, if
+ * you happened to be drawing on any of those windows when the
+ * GtkSocket was destroyed (a common state of affairs), an X error
+ * will kill your application.
+ *
+ * To solve this latter problem, MATE Panel sets up its own X error
+ * handler which ignores certain X errors that might have been
+ * caused by such a scenario. Other X errors get passed to gdk_x_error
+ * normally.
+ */
+static void
+_mate_panel_applet_setup_x_error_handler (void)
+{
+ static gboolean error_handler_setup = FALSE;
+
+ if (error_handler_setup)
+ return;
+
+ error_handler_setup = TRUE;
+
+ _x_error_func = XSetErrorHandler (_x_error_handler);
+}
+
+int mate_panel_applet_factory_main(const gchar* factory_id, gboolean out_process, GType applet_type, MatePanelAppletFactoryCallback callback, gpointer user_data)
+{
+ MatePanelAppletFactory* factory;
+ GClosure* closure;
+
+ g_return_val_if_fail(factory_id != NULL, 1);
+ g_return_val_if_fail(callback != NULL, 1);
+ g_assert(g_type_is_a(applet_type, PANEL_TYPE_APPLET));
+
+ if (out_process)
+ {
+ _mate_panel_applet_setup_x_error_handler();
+ }
+
+ closure = g_cclosure_new(G_CALLBACK(callback), user_data, NULL);
+ factory = mate_panel_applet_factory_new(factory_id, applet_type, closure);
+ g_closure_unref(closure);
+
+ if (mate_panel_applet_factory_register_service(factory))
+ {
+ if (out_process)
+ {
+ g_object_weak_ref(G_OBJECT(factory), mate_panel_applet_factory_main_finalized, NULL);
+ gtk_main();
+ }
+
+ return 0;
+ }
+
+ g_object_unref (factory);
+
+ return 1;
+}
+
+void
+mate_panel_applet_set_background_widget (MatePanelApplet *applet,
+ GtkWidget *widget)
+{
+ applet->priv->background_widget = widget;
+
+ if (widget) {
+ MatePanelAppletBackgroundType type;
+ GdkColor color;
+ GdkPixmap *pixmap;
+
+ type = mate_panel_applet_get_background (applet, &color, &pixmap);
+ mate_panel_applet_update_background_for_widget (widget, type,
+ &color, pixmap);
+ if (type == PANEL_PIXMAP_BACKGROUND)
+ g_object_unref (pixmap);
+ }
+}
+
+guint32
+mate_panel_applet_get_xid (MatePanelApplet *applet,
+ GdkScreen *screen)
+{
+ gtk_window_set_screen (GTK_WINDOW (applet->priv->plug), screen);
+ gtk_widget_show (applet->priv->plug);
+
+ return gtk_plug_get_id (GTK_PLUG (applet->priv->plug));
+}
+
+const gchar *
+mate_panel_applet_get_object_path (MatePanelApplet *applet)
+{
+ return applet->priv->object_path;
+}