moved from Mate-Extra

1 files changed, 1038 insertions, 0 deletions

diff --git a/applets/brightness/brightness-applet.c b/applets/brightness/brightness-applet.c
new file mode 100644
index 0000000..125af49
--- /dev/null
+++ b/applets/brightness/brightness-applet.c
@@ -0,0 +1,1038 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
+ *
+ * MATE Power Manager Brightness Applet
+ * Copyright (C) 2006 Benjamin Canou <[email protected]>
+ * Copyright (C) 2007 Richard Hughes <[email protected]>
+ *
+ * Licensed under the GNU General Public License Version 2
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+/* FIXME: gdk_gc_* needs porting to cairo */
+#undef GDK_DISABLE_DEPRECATED
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <mate-panel-applet.h>
+#include <gtk/gtk.h>
+#include <gdk/gdkkeysyms.h>
+#include <glib-object.h>
+#include <dbus/dbus-glib.h>
+
+#include "egg-debug.h"
+#include "egg-dbus-monitor.h"
+#include "gpm-common.h"
+
+#define GPM_TYPE_BRIGHTNESS_APPLET		(gpm_brightness_applet_get_type ())
+#define GPM_BRIGHTNESS_APPLET(o)		(G_TYPE_CHECK_INSTANCE_CAST ((o), GPM_TYPE_BRIGHTNESS_APPLET, GpmBrightnessApplet))
+#define GPM_BRIGHTNESS_APPLET_CLASS(k)		(G_TYPE_CHECK_CLASS_CAST((k), GPM_TYPE_BRIGHTNESS_APPLET, GpmBrightnessAppletClass))
+#define GPM_IS_BRIGHTNESS_APPLET(o)		(G_TYPE_CHECK_INSTANCE_TYPE ((o), GPM_TYPE_BRIGHTNESS_APPLET))
+#define GPM_IS_BRIGHTNESS_APPLET_CLASS(k)	(G_TYPE_CHECK_CLASS_TYPE ((k), GPM_TYPE_BRIGHTNESS_APPLET))
+#define GPM_BRIGHTNESS_APPLET_GET_CLASS(o)	(G_TYPE_INSTANCE_GET_CLASS ((o), GPM_TYPE_BRIGHTNESS_APPLET, GpmBrightnessAppletClass))
+
+typedef struct{
+	MatePanelApplet parent;
+	/* applet state */
+	gboolean call_worked; /* g-p-m refusing action */
+	gboolean popped; /* the popup is shown */
+	/* the popup and its widgets */
+	GtkWidget *popup, *slider, *btn_plus, *btn_minus;
+	/* the icon and a cache for size*/
+	GdkPixbuf *icon;
+	gint icon_width, icon_height;
+	/* connection to g-p-m */
+	DBusGProxy *proxy;
+	DBusGConnection *connection;
+	EggDbusMonitor *monitor;
+	guint level;
+	/* a cache for panel size */
+	gint size;
+} GpmBrightnessApplet;
+
+typedef struct{
+	MatePanelAppletClass	parent_class;
+} GpmBrightnessAppletClass;
+
+GType                gpm_brightness_applet_get_type  (void);
+
+
+static void      gpm_brightness_applet_class_init (GpmBrightnessAppletClass *klass);
+static void      gpm_brightness_applet_init       (GpmBrightnessApplet *applet);
+
+G_DEFINE_TYPE (GpmBrightnessApplet, gpm_brightness_applet, PANEL_TYPE_APPLET)
+
+static void      gpm_applet_get_icon              (GpmBrightnessApplet *applet);
+static void      gpm_applet_check_size            (GpmBrightnessApplet *applet);
+static gboolean  gpm_applet_draw_cb               (GpmBrightnessApplet *applet);
+static void      gpm_applet_change_background_cb  (GpmBrightnessApplet *applet,
+						   MatePanelAppletBackgroundType arg1,
+						   GdkColor *arg2, GdkPixmap *arg3, gpointer data);
+static void      gpm_applet_theme_change_cb (GtkIconTheme *icon_theme, gpointer data);
+static void      gpm_applet_stop_scroll_events_cb (GtkWidget *widget, GdkEvent  *event);
+static gboolean  gpm_applet_destroy_popup_cb      (GpmBrightnessApplet *applet);
+static void      gpm_applet_update_tooltip        (GpmBrightnessApplet *applet);
+static void      gpm_applet_update_popup_level    (GpmBrightnessApplet *applet);
+static gboolean  gpm_applet_plus_cb               (GtkWidget *w, GpmBrightnessApplet *applet);
+static gboolean  gpm_applet_minus_cb              (GtkWidget *w, GpmBrightnessApplet *applet);
+static gboolean  gpm_applet_key_press_cb          (GpmBrightnessApplet *applet, GdkEventKey *event);
+static gboolean  gpm_applet_scroll_cb             (GpmBrightnessApplet *applet, GdkEventScroll *event);
+static gboolean  gpm_applet_slide_cb              (GtkWidget *w, GpmBrightnessApplet *applet);
+static void      gpm_applet_create_popup          (GpmBrightnessApplet *applet);
+static gboolean  gpm_applet_popup_cb              (GpmBrightnessApplet *applet, GdkEventButton *event);
+static void      gpm_applet_dialog_about_cb       (MateComponentUIComponent *uic, gpointer data, const gchar *verbname);
+static gboolean  gpm_applet_matecomponent_cb             (MatePanelApplet *_applet, const gchar *iid, gpointer data);
+static void      gpm_applet_destroy_cb            (GtkObject *object);
+
+#define GPM_BRIGHTNESS_APPLET_OAFID		"OAFIID:MATE_BrightnessApplet"
+#define GPM_BRIGHTNESS_APPLET_FACTORY_OAFID	"OAFIID:MATE_BrightnessApplet_Factory"
+#define GPM_BRIGHTNESS_APPLET_ICON		"mate-brightness-applet"
+#define GPM_BRIGHTNESS_APPLET_ICON_DISABLED	"gpm-brightness-lcd-disabled"
+#define GPM_BRIGHTNESS_APPLET_ICON_INVALID	"gpm-brightness-lcd-invalid"
+#define GPM_BRIGHTNESS_APPLET_NAME		_("Power Manager Brightness Applet")
+#define GPM_BRIGHTNESS_APPLET_DESC		_("Adjusts laptop panel brightness.")
+#define MATE_PANEL_APPLET_VERTICAL(p)					\
+	 (((p) == MATE_PANEL_APPLET_ORIENT_LEFT) || ((p) == MATE_PANEL_APPLET_ORIENT_RIGHT))
+
+/**
+ * gpm_applet_get_brightness:
+ * Return value: Success value, or zero for failure
+ **/
+static gboolean
+gpm_applet_get_brightness (GpmBrightnessApplet *applet)
+{
+	GError  *error = NULL;
+	gboolean ret;
+	guint policy_brightness;
+
+	if (applet->proxy == NULL) {
+		egg_warning ("not connected\n");
+		return FALSE;
+	}
+
+	ret = dbus_g_proxy_call (applet->proxy, "GetBrightness", &error,
+				 G_TYPE_INVALID,
+				 G_TYPE_UINT, &policy_brightness,
+				 G_TYPE_INVALID);
+	if (error) {
+		egg_debug ("ERROR: %s\n", error->message);
+		g_error_free (error);
+	}
+	if (ret) {
+		applet->level = policy_brightness;
+	} else {
+		/* abort as the DBUS method failed */
+		egg_warning ("GetBrightness failed!\n");
+	}
+
+	return ret;
+}
+
+/**
+ * gpm_applet_set_brightness:
+ * Return value: Success value, or zero for failure
+ **/
+static gboolean
+gpm_applet_set_brightness (GpmBrightnessApplet *applet)
+{
+	GError  *error = NULL;
+	gboolean ret;
+
+	if (applet->proxy == NULL) {
+		egg_warning ("not connected");
+		return FALSE;
+	}
+
+	ret = dbus_g_proxy_call (applet->proxy, "SetBrightness", &error,
+				 G_TYPE_UINT, applet->level,
+				 G_TYPE_INVALID,
+				 G_TYPE_INVALID);
+	if (error) {
+		egg_debug ("ERROR: %s", error->message);
+		g_error_free (error);
+	}
+	if (!ret) {
+		/* abort as the DBUS method failed */
+		egg_warning ("SetBrightness failed!");
+	}
+
+	return ret;
+}
+
+/**
+ * gpm_applet_get_icon:
+ * @applet: Brightness applet instance
+ *
+ * retrieve an icon from stock with a size adapted to panel
+ **/
+static void
+gpm_applet_get_icon (GpmBrightnessApplet *applet)
+{
+	const gchar *icon;
+
+	/* free */
+	if (applet->icon != NULL) {
+		g_object_unref (applet->icon);
+		applet->icon = NULL;
+	}
+
+	if (applet->size <= 2) {
+		return;
+	}
+
+	/* get icon */
+	if (applet->proxy == NULL) {
+		icon = GPM_BRIGHTNESS_APPLET_ICON_INVALID;
+	} else if (applet->call_worked == FALSE) {
+		icon = GPM_BRIGHTNESS_APPLET_ICON_DISABLED;
+	} else {
+		icon = GPM_BRIGHTNESS_APPLET_ICON;
+	}
+
+	applet->icon = gtk_icon_theme_load_icon (gtk_icon_theme_get_default (),
+						 icon, applet->size - 2, 0, NULL);
+
+	if (applet->icon == NULL) {
+		egg_warning ("Cannot find %s!\n", icon);
+	} else {
+		egg_debug ("got icon %s!\n", icon);
+		/* update size cache */
+		applet->icon_height = gdk_pixbuf_get_height (applet->icon);
+		applet->icon_width = gdk_pixbuf_get_width (applet->icon);
+	}
+}
+
+/**
+ * gpm_applet_check_size:
+ * @applet: Brightness applet instance
+ *
+ * check if panel size has changed and applet adapt size
+ **/
+static void
+gpm_applet_check_size (GpmBrightnessApplet *applet)
+{
+	GtkAllocation allocation;
+
+	/* we don't use the size function here, but the yet allocated size because the
+	   size value is false (kind of rounded) */
+	gtk_widget_get_allocation (GTK_WIDGET (applet), &allocation);
+	if (MATE_PANEL_APPLET_VERTICAL(mate_panel_applet_get_orient (MATE_PANEL_APPLET (applet)))) {
+		if (applet->size != allocation.width) {
+			applet->size = allocation.width;
+			gpm_applet_get_icon (applet);
+			gtk_widget_set_size_request (GTK_WIDGET(applet), applet->size, applet->icon_height + 2);
+		}
+	} else {
+		if (applet->size != allocation.height) {
+			applet->size = allocation.height;
+			gpm_applet_get_icon (applet);
+			gtk_widget_set_size_request (GTK_WIDGET(applet), applet->icon_width + 2, applet->size);
+		}
+	}
+}
+
+/**
+ * gpm_applet_draw_cb:
+ * @applet: Brightness applet instance
+ *
+ * draws applet content (background + icon)
+ **/
+static gboolean
+gpm_applet_draw_cb (GpmBrightnessApplet *applet)
+{
+	gint w, h, bg_type;
+	GdkColor color;
+	GdkGC *gc;
+	GdkPixmap *background;
+	GtkAllocation allocation;
+
+	if (gtk_widget_get_window (GTK_WIDGET(applet)) == NULL) {
+		return FALSE;
+	}
+
+	/* retrieve applet size */
+	gpm_applet_get_icon (applet);
+	gpm_applet_check_size (applet);
+	if (applet->size <= 2) {
+		return FALSE;
+	}
+
+	/* if no icon, then don't try to display */
+	if (applet->icon == NULL) {
+		return FALSE;
+	}
+
+	gtk_widget_get_allocation (GTK_WIDGET (applet), &allocation);
+	w = allocation.width;
+	h = allocation.height;
+
+	gc = gdk_gc_new (gtk_widget_get_window (GTK_WIDGET(applet)));
+
+	/* draw pixmap background */
+	bg_type = mate_panel_applet_get_background (MATE_PANEL_APPLET (applet), &color, &background);
+	if (bg_type == PANEL_PIXMAP_BACKGROUND && !applet->popped) {
+		/* fill with given background pixmap */
+		gdk_draw_drawable (gtk_widget_get_window (GTK_WIDGET(applet)), gc, background, 0, 0, 0, 0, w, h);
+	}
+	
+	/* draw color background */
+	if (bg_type == PANEL_COLOR_BACKGROUND && !applet->popped) {
+		gdk_gc_set_rgb_fg_color (gc,&color);
+		gdk_gc_set_fill (gc,GDK_SOLID);
+		gdk_draw_rectangle (gtk_widget_get_window (GTK_WIDGET(applet)), gc, TRUE, 0, 0, w, h);
+	}
+
+	/* fill with selected color if popped */
+	if (applet->popped) {
+		color = gtk_rc_get_style (GTK_WIDGET(applet))->bg[GTK_STATE_SELECTED];
+		gdk_gc_set_rgb_fg_color (gc,&color);
+		gdk_gc_set_fill (gc,GDK_SOLID);
+		gdk_draw_rectangle (gtk_widget_get_window (GTK_WIDGET(applet)), gc, TRUE, 0, 0, w, h);
+	}
+
+	/* draw icon at center */
+	gdk_draw_pixbuf (gtk_widget_get_window (GTK_WIDGET(applet)), gc, applet->icon,
+			 0, 0, (w - applet->icon_width)/2, (h - applet->icon_height)/2,
+			 applet->icon_width, applet->icon_height,
+			 GDK_RGB_DITHER_NONE, 0, 0);
+
+	g_object_unref (gc);
+
+	return TRUE;
+}
+
+/**
+ * gpm_applet_change_background_cb:
+ *
+ * Enqueues an expose event (don't know why it's not the default behaviour)
+ **/
+static void
+gpm_applet_change_background_cb (GpmBrightnessApplet *applet,
+				 MatePanelAppletBackgroundType arg1,
+				 GdkColor *arg2, GdkPixmap *arg3, gpointer data)
+{
+	gtk_widget_queue_draw (GTK_WIDGET (applet));
+}
+
+/**
+ * gpm_applet_destroy_popup_cb:
+ * @applet: Brightness applet instance
+ *
+ * destroys the popup (called if orientation has changed)
+ **/
+static gboolean
+gpm_applet_destroy_popup_cb (GpmBrightnessApplet *applet)
+{
+	if (applet->popup != NULL) {
+		gtk_widget_set_parent (applet->popup, NULL);
+		gtk_widget_destroy (applet->popup);
+		applet->popup = NULL;
+	}
+	return TRUE;
+}
+
+/**
+ * gpm_applet_update_tooltip:
+ * @applet: Brightness applet instance
+ *
+ * sets tooltip's content (percentage or disabled)
+ **/
+static void
+gpm_applet_update_tooltip (GpmBrightnessApplet *applet)
+{
+	gchar *buf = NULL;
+	if (applet->popped == FALSE) {
+		if (applet->proxy == NULL) {
+			buf = g_strdup (_("Cannot connect to mate-power-manager"));
+		} else if (applet->call_worked == FALSE) {
+			buf = g_strdup (_("Cannot get laptop panel brightness"));
+		} else {
+			buf = g_strdup_printf (_("LCD brightness : %d%%"), applet->level);
+		}
+		gtk_widget_set_tooltip_text (GTK_WIDGET(applet), buf);
+	} else {
+		gtk_widget_set_tooltip_text (GTK_WIDGET(applet), NULL);
+	}
+	g_free (buf);
+}
+
+/**
+ * gpm_applet_update_popup_level:
+ * @applet: Brightness applet instance
+ * @get_hw: set UI value from HW value
+ * @set_hw: set HW value from UI value
+ *
+ * updates popup and hardware level of brightness
+ * FALSE FAlSE -> set UI from cached value
+ * TRUE  FAlSE -> set UI from HW value
+ * TRUE  FALSE -> set HW from UI value, then set UI from HW value
+ * FALSE TRUE  -> set HW from UI value
+ **/
+static void
+gpm_applet_update_popup_level (GpmBrightnessApplet *applet)
+{
+	if (applet->popup != NULL) {
+		gtk_widget_set_sensitive (applet->btn_plus, applet->level < 100);
+		gtk_widget_set_sensitive (applet->btn_minus, applet->level > 0);
+		gtk_range_set_value (GTK_RANGE(applet->slider), (guint) applet->level);
+	}
+	gpm_applet_update_tooltip (applet);
+}
+
+/**
+ * gpm_applet_plus_cb:
+ * @widget: The sending widget (plus button)
+ * @applet: Brightness applet instance
+ *
+ * callback for the plus button
+ **/
+static gboolean
+gpm_applet_plus_cb (GtkWidget *w, GpmBrightnessApplet *applet)
+{
+	if (applet->level < 100) {
+		applet->level++;
+	}
+	applet->call_worked = gpm_applet_set_brightness (applet);
+	gpm_applet_update_popup_level (applet);
+	return TRUE;
+}
+
+/**
+ * gpm_applet_minus_cb:
+ * @widget: The sending widget (minus button)
+ * @applet: Brightness applet instance
+ *
+ * callback for the minus button
+ **/
+static gboolean
+gpm_applet_minus_cb (GtkWidget *w, GpmBrightnessApplet *applet)
+{
+	if (applet->level > 0) {
+		applet->level--;
+	}
+	applet->call_worked = gpm_applet_set_brightness (applet);
+	gpm_applet_update_popup_level (applet);
+	return TRUE;
+}
+
+/**
+ * gpm_applet_slide_cb:
+ * @widget: The sending widget (slider)
+ * @applet: Brightness applet instance
+ *
+ * callback for the slider
+ **/
+static gboolean
+gpm_applet_slide_cb (GtkWidget *w, GpmBrightnessApplet *applet)
+{
+	applet->level = gtk_range_get_value (GTK_RANGE(applet->slider));
+	applet->call_worked = gpm_applet_set_brightness (applet);
+	gpm_applet_update_popup_level (applet);
+	return TRUE;
+}
+
+/**
+ * gpm_applet_slide_cb:
+ * @applet: Brightness applet instance
+ * @event: The key press event
+ *
+ * callback handling keyboard
+ * mainly escape to unpop and arrows to change brightness
+ **/
+static gboolean
+gpm_applet_key_press_cb (GpmBrightnessApplet *applet, GdkEventKey *event)
+{
+	int i;
+	
+	switch (event->keyval) {
+	case GDK_KP_Enter:
+	case GDK_ISO_Enter:
+	case GDK_3270_Enter:
+	case GDK_Return:
+	case GDK_space:
+	case GDK_KP_Space:
+	case GDK_Escape:
+		/* if yet popped, release focus and hide then redraw applet unselected */
+		if (applet->popped) {
+			gdk_keyboard_ungrab (GDK_CURRENT_TIME);
+			gdk_pointer_ungrab (GDK_CURRENT_TIME);
+			gtk_grab_remove (GTK_WIDGET(applet));
+			gtk_widget_set_state (GTK_WIDGET(applet), GTK_STATE_NORMAL);
+			gtk_widget_hide (applet->popup);
+			applet->popped = FALSE;
+			gpm_applet_draw_cb (applet);
+			gpm_applet_update_tooltip (applet);
+			return TRUE;
+		} else {
+			return FALSE;
+		}
+		break;
+	case GDK_Page_Up:
+		for (i = 0;i < 10;i++) {
+			gpm_applet_plus_cb (NULL, applet);
+		}
+		return TRUE;
+		break;
+	case GDK_Left:
+	case GDK_Up:
+		gpm_applet_plus_cb (NULL, applet);
+		return TRUE;
+		break;
+	case GDK_Page_Down:
+		for (i = 0;i < 10;i++) {
+			gpm_applet_minus_cb (NULL, applet);
+		}
+		return TRUE;
+		break;
+	case GDK_Right:
+	case GDK_Down:
+		gpm_applet_minus_cb (NULL, applet);
+		return TRUE;
+		break;
+	default:
+		return FALSE;
+		break;
+	}
+
+	return FALSE;
+}
+
+/**
+ * gpm_applet_scroll_cb:
+ * @applet: Brightness applet instance
+ * @event: The scroll event
+ *
+ * callback handling mouse scrolls, either when the applet
+ * is not popped and the mouse is over the applet, or when
+ * the applet is popped and no matter where the mouse is.
+ **/
+static gboolean
+gpm_applet_scroll_cb (GpmBrightnessApplet *applet, GdkEventScroll *event)
+{
+	int i;
+
+	if (event->type == GDK_SCROLL) {
+		if (event->direction == GDK_SCROLL_UP) {
+			for (i = 0;i < 5;i++) {
+				gpm_applet_plus_cb (NULL, applet);
+			}
+			
+		} else {
+			for (i = 0;i < 5;i++) {
+				gpm_applet_minus_cb (NULL, applet);
+			}
+		}
+		return TRUE;
+	}
+
+	return FALSE;
+}
+
+/**
+ * gpm_applet_create_popup:
+ * @applet: Brightness applet instance
+ *
+ * cretes a new popup according to orientation of panel
+ **/
+static void
+gpm_applet_create_popup (GpmBrightnessApplet *applet)
+{
+	static GtkWidget *box, *frame;
+	gint orientation = mate_panel_applet_get_orient (MATE_PANEL_APPLET (MATE_PANEL_APPLET (applet)));
+
+	gpm_applet_destroy_popup_cb (applet);
+
+	/* slider */
+	if (MATE_PANEL_APPLET_VERTICAL(orientation)) {
+		applet->slider = gtk_hscale_new_with_range (0, 100, 1);
+		gtk_widget_set_size_request (applet->slider, 100, -1);
+	} else {
+		applet->slider = gtk_vscale_new_with_range (0, 100, 1);
+		gtk_widget_set_size_request (applet->slider, -1, 100);
+	}
+	gtk_range_set_inverted (GTK_RANGE(applet->slider), TRUE);
+	gtk_scale_set_draw_value (GTK_SCALE(applet->slider), FALSE);
+	gtk_range_set_value (GTK_RANGE(applet->slider), applet->level);
+	g_signal_connect (G_OBJECT(applet->slider), "value-changed", G_CALLBACK(gpm_applet_slide_cb), applet);
+
+	/* minus button */
+	applet->btn_minus = gtk_button_new_with_label ("\342\210\222"); /* U+2212 MINUS SIGN */
+	gtk_button_set_relief (GTK_BUTTON(applet->btn_minus), GTK_RELIEF_NONE);
+	g_signal_connect (G_OBJECT(applet->btn_minus), "pressed", G_CALLBACK(gpm_applet_minus_cb), applet);
+
+	/* plus button */
+	applet->btn_plus = gtk_button_new_with_label ("+");
+	gtk_button_set_relief (GTK_BUTTON(applet->btn_plus), GTK_RELIEF_NONE);
+	g_signal_connect (G_OBJECT(applet->btn_plus), "pressed", G_CALLBACK(gpm_applet_plus_cb), applet);
+
+	/* box */
+	if (MATE_PANEL_APPLET_VERTICAL(orientation)) {
+		box = gtk_hbox_new (FALSE, 1);
+	} else {
+		box = gtk_vbox_new (FALSE, 1);
+	}
+	gtk_box_pack_start (GTK_BOX(box), applet->btn_plus, FALSE, FALSE, 0);
+	gtk_box_pack_start (GTK_BOX(box), applet->slider, TRUE, TRUE, 0);
+	gtk_box_pack_start (GTK_BOX(box), applet->btn_minus, FALSE, FALSE, 0);
+
+	/* frame */
+	frame = gtk_frame_new (NULL);
+	gtk_frame_set_shadow_type (GTK_FRAME(frame), GTK_SHADOW_OUT);
+	gtk_container_add (GTK_CONTAINER(frame), box);
+
+	/* window */
+	applet->popup = gtk_window_new (GTK_WINDOW_POPUP);
+	gtk_window_set_type_hint (GTK_WINDOW(applet->popup), GDK_WINDOW_TYPE_HINT_UTILITY);
+	gtk_widget_set_parent (applet->popup, GTK_WIDGET(applet));
+	gtk_container_add (GTK_CONTAINER(applet->popup), frame);
+}
+
+/**
+ * gpm_applet_popup_cb:
+ * @applet: Brightness applet instance
+ *
+ * pops and unpops
+ **/
+static gboolean
+gpm_applet_popup_cb (GpmBrightnessApplet *applet, GdkEventButton *event)
+{
+	GtkAllocation allocation, popup_allocation;
+	gint orientation, x, y;
+
+	/* react only to left mouse button */
+	if (event->button != 1) {
+		return FALSE;
+	}
+
+	/* if yet popped, release focus and hide then redraw applet unselected */
+	if (applet->popped) {
+		gdk_keyboard_ungrab (GDK_CURRENT_TIME);
+		gdk_pointer_ungrab (GDK_CURRENT_TIME);
+		gtk_grab_remove (GTK_WIDGET(applet));
+		gtk_widget_set_state (GTK_WIDGET(applet), GTK_STATE_NORMAL);
+		gtk_widget_hide (applet->popup);
+		applet->popped = FALSE;
+		gpm_applet_draw_cb (applet);
+		gpm_applet_update_tooltip (applet);
+		return TRUE;
+	}
+
+	/* update UI for current brightness */
+	gpm_applet_update_popup_level (applet);
+
+	/* otherwise pop */
+	applet->popped = TRUE;
+	gpm_applet_draw_cb (applet);
+
+	/* create a new popup (initial or if panel parameters changed) */
+	if (applet->popup == NULL) {
+		gpm_applet_create_popup (applet);
+	}
+
+	/* update UI for current brightness */
+	gpm_applet_update_popup_level (applet);
+
+	gtk_widget_show_all (applet->popup);
+
+	/* retrieve geometry parameters and move window appropriately */
+	orientation = mate_panel_applet_get_orient (MATE_PANEL_APPLET (MATE_PANEL_APPLET (applet)));
+	gdk_window_get_origin (gtk_widget_get_window (GTK_WIDGET(applet)), &x, &y);
+
+	gtk_widget_get_allocation (GTK_WIDGET (applet), &allocation);
+	gtk_widget_get_allocation (GTK_WIDGET (applet->popup), &popup_allocation);
+	switch (orientation) {
+	case MATE_PANEL_APPLET_ORIENT_DOWN:
+		x += allocation.x + allocation.width/2;
+		y += allocation.y + allocation.height;
+		x -= popup_allocation.width/2;
+		break;
+	case MATE_PANEL_APPLET_ORIENT_UP:
+		x += allocation.x + allocation.width/2;
+		y += allocation.y;
+		x -= popup_allocation.width/2;
+		y -= popup_allocation.height;
+		break;
+	case MATE_PANEL_APPLET_ORIENT_RIGHT:
+		y += allocation.y + allocation.height/2;
+		x += allocation.x + allocation.width;
+		y -= popup_allocation.height/2;
+		break;
+	case MATE_PANEL_APPLET_ORIENT_LEFT:
+		y += allocation.y + allocation.height/2;
+		x += allocation.x;
+		x -= popup_allocation.width;
+		y -= popup_allocation.height/2;
+		break;
+	default:
+		g_assert_not_reached ();
+	}
+
+	gtk_window_move (GTK_WINDOW (applet->popup), x, y);
+
+	/* grab input */
+	gtk_widget_grab_focus (GTK_WIDGET(applet));
+	gtk_grab_add (GTK_WIDGET(applet));
+	gdk_pointer_grab (gtk_widget_get_window (GTK_WIDGET(applet)), TRUE,
+			  GDK_BUTTON_PRESS_MASK |
+			  GDK_BUTTON_RELEASE_MASK |
+			  GDK_POINTER_MOTION_MASK,
+			  NULL, NULL, GDK_CURRENT_TIME);
+	gdk_keyboard_grab (gtk_widget_get_window (GTK_WIDGET(applet)),
+			   TRUE, GDK_CURRENT_TIME);
+	gtk_widget_set_state (GTK_WIDGET(applet), GTK_STATE_SELECTED);
+
+	return TRUE;
+}
+
+/**
+ * gpm_applet_theme_change_cb:
+ *
+ * Updtes icon when theme changes
+ **/
+static void
+gpm_applet_theme_change_cb (GtkIconTheme *icon_theme, gpointer data)
+{
+	GpmBrightnessApplet *applet = GPM_BRIGHTNESS_APPLET (data);
+	gpm_applet_get_icon (applet);
+}
+
+/**
+ * gpm_applet_stop_scroll_events_cb:
+ *
+ * Prevents scroll events from reaching the tooltip
+ **/
+static void
+gpm_applet_stop_scroll_events_cb (GtkWidget *widget, GdkEvent  *event)
+{
+	if (event->type == GDK_SCROLL)
+		g_signal_stop_emission_by_name (widget, "event-after");
+}
+
+/**
+ * gpm_applet_dialog_about_cb:
+ *
+ * displays about dialog
+ **/
+static void
+gpm_applet_dialog_about_cb (MateComponentUIComponent *uic, gpointer data, const gchar *verbname)
+{
+	GtkAboutDialog *about;
+
+	GdkPixbuf *logo =
+		gtk_icon_theme_load_icon (gtk_icon_theme_get_default (),
+					  GPM_BRIGHTNESS_APPLET_ICON,
+					  128, 0, NULL);
+
+	static const gchar *authors[] = {
+		"Benjamin Canou <[email protected]>",
+		"Richard Hughes <[email protected]>",
+		NULL
+	};
+	const char *documenters [] = {
+		NULL
+	};
+	const char *license[] = {
+		 N_("Licensed under the GNU General Public License Version 2"),
+		 N_("Power Manager is free software; you can redistribute it and/or\n"
+		   "modify it under the terms of the GNU General Public License\n"
+		   "as published by the Free Software Foundation; either version 2\n"
+		   "of the License, or (at your option) any later version."),
+		 N_("Power Manager is distributed in the hope that it will be useful,\n"
+		   "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
+		   "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
+		   "GNU General Public License for more details."),
+		 N_("You should have received a copy of the GNU General Public License\n"
+		   "along with this program; if not, write to the Free Software\n"
+		   "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA\n"
+		   "02110-1301, USA.")
+	};
+	const char *translator_credits = NULL;
+	char	   *license_trans;
+
+	license_trans = g_strconcat (_(license[0]), "\n\n", _(license[1]), "\n\n",
+				     _(license[2]), "\n\n", _(license[3]), "\n", NULL);
+
+	about = (GtkAboutDialog*) gtk_about_dialog_new ();
+	gtk_about_dialog_set_program_name (about, GPM_BRIGHTNESS_APPLET_NAME);
+	gtk_about_dialog_set_version (about, VERSION);
+	gtk_about_dialog_set_copyright (about, _("Copyright \xc2\xa9 2006 Benjamin Canou"));
+	gtk_about_dialog_set_comments (about, GPM_BRIGHTNESS_APPLET_DESC);
+	gtk_about_dialog_set_authors (about, authors);
+	gtk_about_dialog_set_documenters (about, documenters);
+	gtk_about_dialog_set_translator_credits (about, translator_credits);
+	gtk_about_dialog_set_logo (about, logo);
+	gtk_about_dialog_set_license (about, license_trans);
+	gtk_about_dialog_set_website (about, GPM_HOMEPAGE_URL);
+
+	g_signal_connect (G_OBJECT(about), "response",
+			  G_CALLBACK(gtk_widget_destroy), NULL);
+
+	gtk_widget_show (GTK_WIDGET(about));
+
+	g_free (license_trans);
+	g_object_unref (logo);
+}
+
+/**
+ * gpm_applet_help_cb:
+ *
+ * open gpm help
+ **/
+static void
+gpm_applet_help_cb (MateComponentUIComponent *uic, gpointer data, const gchar *verbname)
+{
+	gpm_help_display ("applets-brightness");
+}
+
+/**
+ * gpm_applet_destroy_cb:
+ * @object: Class instance to destroy
+ **/
+static void
+gpm_applet_destroy_cb (GtkObject *object)
+{
+	GpmBrightnessApplet *applet = GPM_BRIGHTNESS_APPLET(object);
+
+	if (applet->monitor != NULL) {
+		g_object_unref (applet->monitor);
+	}
+	if (applet->icon != NULL) {
+		g_object_unref (applet->icon);
+	}
+}
+
+/**
+ * gpm_brightness_applet_class_init:
+ * @klass: Class instance
+ **/
+static void
+gpm_brightness_applet_class_init (GpmBrightnessAppletClass *class)
+{
+	/* nothing to do here */
+}
+
+static void
+brightness_changed_cb (DBusGProxy          *proxy,
+		       guint	            brightness,
+		       GpmBrightnessApplet *applet)
+{
+	egg_debug ("BrightnessChanged detected: %i\n", brightness);
+	applet->level = brightness;
+}
+
+/**
+ * gpm_brightness_applet_dbus_connect:
+ **/
+gboolean
+gpm_brightness_applet_dbus_connect (GpmBrightnessApplet *applet)
+{
+	GError *error = NULL;
+
+	if (applet->connection == NULL) {
+		egg_debug ("get connection\n");
+		g_clear_error (&error);
+		applet->connection = dbus_g_bus_get (DBUS_BUS_SESSION, &error);
+		if (error != NULL) {
+			egg_warning ("Could not connect to DBUS daemon: %s", error->message);
+			g_error_free (error);
+			applet->connection = NULL;
+			return FALSE;
+		}
+	}
+	if (applet->proxy == NULL) {
+		egg_debug ("get proxy\n");
+		g_clear_error (&error);
+		applet->proxy = dbus_g_proxy_new_for_name_owner (applet->connection,
+							 GPM_DBUS_SERVICE,
+							 GPM_DBUS_PATH_BACKLIGHT,
+							 GPM_DBUS_INTERFACE_BACKLIGHT,
+							 &error);
+		if (error != NULL) {
+			egg_warning ("Cannot connect, maybe the daemon is not running: %s\n", error->message);
+			g_error_free (error);
+			applet->proxy = NULL;
+			return FALSE;
+		}
+		dbus_g_proxy_add_signal (applet->proxy, "BrightnessChanged",
+					 G_TYPE_UINT, G_TYPE_INVALID);
+		dbus_g_proxy_connect_signal (applet->proxy, "BrightnessChanged",
+					     G_CALLBACK (brightness_changed_cb),
+					     applet, NULL);
+		/* reset, we might be starting race */
+		applet->call_worked = gpm_applet_get_brightness (applet);
+	}
+	return TRUE;
+}
+
+/**
+ * gpm_brightness_applet_dbus_disconnect:
+ **/
+gboolean
+gpm_brightness_applet_dbus_disconnect (GpmBrightnessApplet *applet)
+{
+	if (applet->proxy != NULL) {
+		egg_debug ("removing proxy\n");
+		g_object_unref (applet->proxy);
+		applet->proxy = NULL;
+	}
+	return TRUE;
+}
+
+/**
+ * monitor_connection_cb:
+ * @proxy: The dbus raw proxy
+ * @status: The status of the service, where TRUE is connected
+ * @screensaver: This class instance
+ **/
+static void
+monitor_connection_cb (EggDbusMonitor           *monitor,
+		     gboolean	          status,
+		     GpmBrightnessApplet *applet)
+{
+	if (status) {
+		gpm_brightness_applet_dbus_connect (applet);
+		gpm_applet_update_tooltip (applet);
+		gpm_applet_draw_cb (applet);
+	} else {
+		gpm_brightness_applet_dbus_disconnect (applet);
+		gpm_applet_update_tooltip (applet);
+		gpm_applet_draw_cb (applet);
+	}
+}
+
+/**
+ * gpm_brightness_applet_init:
+ * @applet: Brightness applet instance
+ **/
+static void
+gpm_brightness_applet_init (GpmBrightnessApplet *applet)
+{
+	DBusGConnection *connection;
+
+	/* initialize fields */
+	applet->size = 0;
+	applet->call_worked = TRUE;
+	applet->popped = FALSE;
+	applet->popup = NULL;
+	applet->icon = NULL;
+	applet->connection = NULL;
+	applet->proxy = NULL;
+
+	/* Add application specific icons to search path */
+	gtk_icon_theme_append_search_path (gtk_icon_theme_get_default (),
+                                           GPM_DATA G_DIR_SEPARATOR_S "icons");
+
+
+	applet->monitor = egg_dbus_monitor_new ();
+	g_signal_connect (applet->monitor, "connection-changed",
+			  G_CALLBACK (monitor_connection_cb), applet);
+	connection = dbus_g_bus_get (DBUS_BUS_SESSION, NULL);
+	egg_dbus_monitor_assign (applet->monitor, connection, GPM_DBUS_SERVICE);
+	gpm_brightness_applet_dbus_connect (applet);
+
+	/* coldplug */
+	applet->call_worked = gpm_applet_get_brightness (applet);
+	gpm_applet_update_popup_level (applet);
+
+	/* prepare */
+	mate_panel_applet_set_flags (MATE_PANEL_APPLET (applet), MATE_PANEL_APPLET_EXPAND_MINOR);
+
+	/* show */
+	gtk_widget_show_all (GTK_WIDGET(applet));
+
+	/* set appropriate size and load icon accordingly */
+	gpm_applet_draw_cb (applet);
+
+	/* connect */
+	g_signal_connect (G_OBJECT(applet), "button-press-event",
+			  G_CALLBACK(gpm_applet_popup_cb), NULL);
+
+	g_signal_connect (G_OBJECT(applet), "scroll-event",
+			  G_CALLBACK(gpm_applet_scroll_cb), NULL);
+
+	g_signal_connect (G_OBJECT(applet), "key-press-event",
+			  G_CALLBACK(gpm_applet_key_press_cb), NULL);
+
+	/* We use g_signal_connect_after because letting the panel draw
+	 * the background is the only way to have the correct
+	 * background when a theme defines a background picture. */
+	g_signal_connect_after (G_OBJECT(applet), "expose-event",
+				G_CALLBACK(gpm_applet_draw_cb), NULL);
+
+	g_signal_connect (G_OBJECT(applet), "change-background",
+			  G_CALLBACK(gpm_applet_change_background_cb), NULL);
+
+	g_signal_connect (G_OBJECT(applet), "change-orient",
+			  G_CALLBACK(gpm_applet_draw_cb), NULL);
+
+	g_signal_connect (G_OBJECT(applet), "change-orient",
+			  G_CALLBACK(gpm_applet_destroy_popup_cb), NULL);
+
+	g_signal_connect (G_OBJECT(applet), "destroy",
+			  G_CALLBACK(gpm_applet_destroy_cb), NULL);
+
+	/* prevent scroll events from reaching the tooltip */
+	g_signal_connect (G_OBJECT (applet), "event-after", G_CALLBACK (gpm_applet_stop_scroll_events_cb), NULL);
+
+	g_signal_connect (gtk_icon_theme_get_default (), "changed", G_CALLBACK (gpm_applet_theme_change_cb), applet);
+}
+
+/**
+ * gpm_applet_matecomponent_cb:
+ * @_applet: GpmBrightnessApplet instance created by the matecomponent factory
+ * @iid: MateComponent id
+ *
+ * the function called by matecomponent factory after creation
+ **/
+static gboolean
+gpm_applet_matecomponent_cb (MatePanelApplet *_applet, const gchar *iid, gpointer data)
+{
+	GpmBrightnessApplet *applet = GPM_BRIGHTNESS_APPLET(_applet);
+
+	static MateComponentUIVerb verbs [] = {
+		MATECOMPONENT_UI_VERB ("About", gpm_applet_dialog_about_cb),
+		MATECOMPONENT_UI_VERB ("Help", gpm_applet_help_cb),
+		MATECOMPONENT_UI_VERB_END
+	};
+
+	if (strcmp (iid, GPM_BRIGHTNESS_APPLET_OAFID) != 0) {
+		return FALSE;
+	}
+
+	mate_panel_applet_setup_menu_from_file (MATE_PANEL_APPLET (applet),
+					   DATADIR,
+					   "MATE_BrightnessApplet.xml",
+					   NULL, verbs, applet);
+	gpm_applet_draw_cb (applet);
+	return TRUE;
+}
+
+/**
+ * this generates a main with a matecomponent factory
+ **/
+MATE_PANEL_APPLET_MATECOMPONENT_FACTORY
+ (/* the factory iid */
+ GPM_BRIGHTNESS_APPLET_FACTORY_OAFID,
+ /* generates brighness applets instead of regular mate applets  */
+ GPM_TYPE_BRIGHTNESS_APPLET,
+ /* the applet name and version */
+ "BrightnessApplet", VERSION,
+ /* our callback (with no user data) */
+ gpm_applet_matecomponent_cb, NULL);