2 * simple-brightness-applet - simple statusarea applet that allows the user to select the brightness from a range of 1-5
4 * Copyright (c) 2009 Faheem Pervez <trippin1@gmail.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
27 #include "simple-brightness-applet.h"
31 #include <hildon/hildon.h>
32 #include <gconf/gconf-client.h>
35 #ifdef HILDON_DISABLE_DEPRECATED
36 #undef HILDON_DISABLE_DEPRECATED
39 HD_DEFINE_PLUGIN_MODULE (SimpleBrightnessApplet, simple_brightness_applet, HD_TYPE_STATUS_MENU_ITEM)
41 #define SIMPLE_BRIGHTNESS_GCONF_PATH "/system/osso/dsm/display"
42 #define BRIGHTNESS_KEY SIMPLE_BRIGHTNESS_GCONF_PATH "/display_brightness"
44 #define SIMPLE_BRIGHTNESS_APPLET_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), \
45 SIMPLE_TYPE_BRIGHTNESS_APPLET, SimpleBrightnessAppletPrivate))
47 typedef struct _SimpleBrightnessAppletPrivate SimpleBrightnessAppletPrivate;
49 struct _SimpleBrightnessAppletPrivate
51 GConfClient *gconf_client;
52 GtkHBox *applet_contents;
53 HildonControlbar *brightness_ctrlbar;
54 GtkWidget *settings_dialog;
55 GtkWidget *dispchkbtn;
56 GtkWidget *applet_button;
58 gulong brightness_ctrlbar_valchanged_id;
59 gulong dispchkbtn_toggled_id;
61 guint display_keepalive_timeout;
63 gboolean dispchkbtn_active;
65 osso_context_t *osso_context;
68 static void simple_brightness_applet_finalize (GObject *object);
71 static gboolean simple_brightness_applet_keep_backlight_alive (SimpleBrightnessApplet *plugin)
73 SimpleBrightnessAppletPrivate *priv = SIMPLE_BRIGHTNESS_APPLET_GET_PRIVATE (plugin);
75 g_return_val_if_fail(priv->osso_context, FALSE);
77 osso_display_state_on(priv->osso_context);
78 if (osso_display_blanking_pause(priv->osso_context) != OSSO_OK)
84 static void simple_brightness_applet_on_gconf_value_changed (GConfClient *gconf_client G_GNUC_UNUSED, guint cnxn_id G_GNUC_UNUSED, GConfEntry *entry G_GNUC_UNUSED, SimpleBrightnessApplet *plugin)
86 SimpleBrightnessAppletPrivate *priv = SIMPLE_BRIGHTNESS_APPLET_GET_PRIVATE (plugin);
88 g_signal_handler_block (priv->brightness_ctrlbar, priv->brightness_ctrlbar_valchanged_id);
89 hildon_controlbar_set_value (priv->brightness_ctrlbar, gconf_client_get_int(priv->gconf_client, BRIGHTNESS_KEY, NULL));
90 g_signal_handler_unblock (priv->brightness_ctrlbar, priv->brightness_ctrlbar_valchanged_id);
93 static void simple_brightness_applet_on_value_changed (HildonControlbar *brightness_ctrlbar G_GNUC_UNUSED, SimpleBrightnessApplet *plugin)
95 SimpleBrightnessAppletPrivate *priv = SIMPLE_BRIGHTNESS_APPLET_GET_PRIVATE (plugin);
97 gconf_client_set_int (priv->gconf_client, BRIGHTNESS_KEY, hildon_controlbar_get_value (priv->brightness_ctrlbar), NULL);
100 static void simple_brightness_applet_on_settings_button_clicked (GtkWidget *button, SimpleBrightnessApplet *plugin)
102 SimpleBrightnessAppletPrivate *priv = SIMPLE_BRIGHTNESS_APPLET_GET_PRIVATE (plugin);
103 gboolean failed = FALSE;
105 gtk_widget_hide(priv->settings_dialog);
107 if (priv->osso_context)
109 if (osso_cp_plugin_execute(priv->osso_context, "libcpdisplay.so", NULL, TRUE) != OSSO_OK)
117 gtk_widget_destroy(priv->settings_dialog);
120 hildon_banner_show_information(NULL, NULL, "Failed to show display settings");
123 static void simple_brightness_applet_on_dispchkbtn_toggled (GtkWidget *button G_GNUC_UNUSED, SimpleBrightnessApplet *plugin)
125 SimpleBrightnessAppletPrivate *priv = SIMPLE_BRIGHTNESS_APPLET_GET_PRIVATE (plugin);
126 GdkPixbuf *pixbuf = NULL;
128 priv->dispchkbtn_active = hildon_check_button_get_active (HILDON_CHECK_BUTTON(priv->dispchkbtn));
130 g_signal_handler_block (priv->dispchkbtn, priv->dispchkbtn_toggled_id);
132 gtk_widget_hide(priv->settings_dialog);
134 if (priv->dispchkbtn_active)
136 simple_brightness_applet_keep_backlight_alive(plugin);
137 priv->display_keepalive_timeout = g_timeout_add_seconds(50, (GSourceFunc) simple_brightness_applet_keep_backlight_alive, plugin);
138 if (priv->display_keepalive_timeout == 0)
140 hildon_banner_show_information(NULL, NULL, "Failed to keep backlight on");
141 priv->dispchkbtn_active = FALSE;
142 hildon_check_button_set_active(HILDON_CHECK_BUTTON(priv->dispchkbtn), priv->dispchkbtn_active);
143 g_signal_handler_unblock (priv->dispchkbtn, priv->dispchkbtn_toggled_id);
147 gtk_widget_set_name(priv->applet_button, "hildon-reject-button-finger");
148 pixbuf = gtk_icon_theme_load_icon (gtk_icon_theme_get_default(), "general_brightness", 18, 0, NULL);
151 hd_status_plugin_item_set_status_area_icon (HD_STATUS_PLUGIN_ITEM (plugin), pixbuf);
152 g_object_unref (pixbuf);
158 if(g_source_remove(priv->display_keepalive_timeout))
160 gtk_widget_set_name(priv->applet_button, "GtkButton-finger");
161 hd_status_plugin_item_set_status_area_icon (HD_STATUS_PLUGIN_ITEM (plugin), NULL);
162 priv->display_keepalive_timeout = 0;
166 priv->dispchkbtn_active = TRUE;
167 hildon_check_button_set_active(HILDON_CHECK_BUTTON(priv->dispchkbtn), priv->dispchkbtn_active);
171 g_signal_handler_unblock (priv->dispchkbtn, priv->dispchkbtn_toggled_id);
172 gtk_widget_destroy(priv->settings_dialog);
175 /* Setup applet and dialogs: */
176 static void simple_brightness_applet_on_button_clicked (GtkWidget *button, SimpleBrightnessApplet *plugin)
178 SimpleBrightnessAppletPrivate *priv = SIMPLE_BRIGHTNESS_APPLET_GET_PRIVATE (plugin);
179 GtkWidget *toplevel, *settings_button;
180 GdkPixbuf *pixbuf = NULL;
182 toplevel = gtk_widget_get_toplevel(button);
183 gtk_widget_hide (toplevel);
185 priv->settings_dialog = gtk_dialog_new ();
186 gtk_window_set_title (GTK_WINDOW (priv->settings_dialog), "Simple Brightness Applet:");
187 gtk_window_set_transient_for(GTK_WINDOW(priv->settings_dialog), GTK_WINDOW(toplevel));
188 gtk_window_set_destroy_with_parent (GTK_WINDOW (priv->settings_dialog), TRUE);
190 settings_button = hildon_button_new(HILDON_SIZE_FINGER_HEIGHT | HILDON_SIZE_AUTO_WIDTH, HILDON_BUTTON_ARRANGEMENT_HORIZONTAL);
191 hildon_button_set_title(HILDON_BUTTON (settings_button), "Open Display Settings...");
192 pixbuf = gtk_icon_theme_load_icon (gtk_icon_theme_get_default(), "general_brightness", 64, 0, NULL);
196 image = gtk_image_new_from_pixbuf (pixbuf);
197 g_object_unref (pixbuf);
199 hildon_button_set_image(HILDON_BUTTON(settings_button), image);
201 gtk_box_pack_start(GTK_BOX(GTK_DIALOG(priv->settings_dialog)->vbox), settings_button, TRUE, TRUE, 0);
202 g_signal_connect(settings_button, "clicked", G_CALLBACK(simple_brightness_applet_on_settings_button_clicked), plugin);
204 priv->dispchkbtn = hildon_check_button_new(HILDON_SIZE_FINGER_HEIGHT | HILDON_SIZE_AUTO_WIDTH);
205 gtk_button_set_label(GTK_BUTTON (priv->dispchkbtn), "Keep display on");
206 gtk_button_set_alignment(GTK_BUTTON(priv->dispchkbtn), 0.5f, 0.5f);
207 hildon_check_button_set_active(HILDON_CHECK_BUTTON(priv->dispchkbtn), priv->dispchkbtn_active);
208 gtk_box_pack_start(GTK_BOX(GTK_DIALOG(priv->settings_dialog)->vbox), priv->dispchkbtn, TRUE, TRUE, 0);
209 priv->dispchkbtn_toggled_id = g_signal_connect(priv->dispchkbtn, "toggled", G_CALLBACK(simple_brightness_applet_on_dispchkbtn_toggled), plugin);
211 gtk_widget_show_all(priv->settings_dialog);
214 static void simple_brightness_applet_setup (SimpleBrightnessApplet *plugin)
216 GdkPixbuf *pixbuf = NULL;
217 SimpleBrightnessAppletPrivate *priv = SIMPLE_BRIGHTNESS_APPLET_GET_PRIVATE (plugin);
219 priv->applet_contents = GTK_HBOX (gtk_hbox_new (FALSE, HILDON_MARGIN_DEFAULT));
221 priv->applet_button = hildon_gtk_button_new(HILDON_SIZE_FINGER_HEIGHT | HILDON_SIZE_AUTO_WIDTH);
222 gtk_box_pack_start (GTK_BOX (priv->applet_contents), priv->applet_button, FALSE, FALSE, 0);
223 g_signal_connect (priv->applet_button, "clicked", G_CALLBACK(simple_brightness_applet_on_button_clicked), plugin);
224 pixbuf = gtk_icon_theme_load_icon (gtk_icon_theme_get_default(), "general_brightness", 64, 0, NULL);
228 image = gtk_image_new_from_pixbuf (pixbuf);
229 g_object_unref (pixbuf);
231 gtk_button_set_image(GTK_BUTTON(priv->applet_button), image);
234 priv->brightness_ctrlbar = HILDON_CONTROLBAR (hildon_controlbar_new ()); /* Yes, I know: I'm very naughty for using a depreciated widget. But let me know, Nokia, when you actually stop using it too. */
235 hildon_gtk_widget_set_theme_size(GTK_WIDGET(priv->brightness_ctrlbar), HILDON_SIZE_FINGER_HEIGHT | HILDON_SIZE_AUTO_WIDTH);
236 hildon_controlbar_set_range (priv->brightness_ctrlbar, gconf_client_get_int(priv->gconf_client, "/system/osso/dsm/display/display_brightness_level_step", NULL), gconf_client_get_int(priv->gconf_client, "/system/osso/dsm/display/max_display_brightness_levels", NULL));
237 hildon_controlbar_set_value (priv->brightness_ctrlbar, gconf_client_get_int(priv->gconf_client, BRIGHTNESS_KEY, NULL));
238 priv->brightness_ctrlbar_valchanged_id = g_signal_connect (priv->brightness_ctrlbar, "value-changed", G_CALLBACK(simple_brightness_applet_on_value_changed), plugin);
239 gtk_box_pack_start (GTK_BOX (priv->applet_contents), GTK_WIDGET (priv->brightness_ctrlbar), TRUE, TRUE, 0);
241 gconf_client_add_dir (priv->gconf_client, SIMPLE_BRIGHTNESS_GCONF_PATH, GCONF_CLIENT_PRELOAD_NONE, NULL);
242 priv->gconfnotify_id = gconf_client_notify_add (priv->gconf_client, BRIGHTNESS_KEY, (GConfClientNotifyFunc)simple_brightness_applet_on_gconf_value_changed, plugin, NULL, NULL);
246 static void simple_brightness_applet_class_init (SimpleBrightnessAppletClass *class)
248 GObjectClass *object_class = G_OBJECT_CLASS (class);
250 object_class->finalize = simple_brightness_applet_finalize;
252 g_type_class_add_private (class, sizeof (SimpleBrightnessAppletPrivate));
255 static void simple_brightness_applet_class_finalize (SimpleBrightnessAppletClass *class G_GNUC_UNUSED)
259 static void simple_brightness_applet_init (SimpleBrightnessApplet *plugin)
261 SimpleBrightnessAppletPrivate *priv = SIMPLE_BRIGHTNESS_APPLET_GET_PRIVATE (plugin);
262 memset (priv, 0, sizeof (SimpleBrightnessAppletPrivate));
264 priv->dispchkbtn_active = FALSE;
265 priv->osso_context = osso_initialize(PACKAGE, PACKAGE_VERSION, TRUE, NULL);
266 priv->brightness_ctrlbar_valchanged_id = priv->dispchkbtn_toggled_id = priv->gconfnotify_id = priv->display_keepalive_timeout = 0;
267 priv->gconf_client = gconf_client_get_default ();
269 simple_brightness_applet_setup (plugin);
270 gtk_container_add (GTK_CONTAINER (plugin), GTK_WIDGET(priv->applet_contents));
271 gtk_widget_show_all (GTK_WIDGET(plugin));
274 static void simple_brightness_applet_finalize (GObject *object)
276 SimpleBrightnessApplet *plugin = SIMPLE_BRIGHTNESS_APPLET (object);
277 SimpleBrightnessAppletPrivate *priv = SIMPLE_BRIGHTNESS_APPLET_GET_PRIVATE (plugin);
279 if (priv->brightness_ctrlbar_valchanged_id != 0)
281 g_signal_handler_disconnect (priv->brightness_ctrlbar, priv->brightness_ctrlbar_valchanged_id);
282 priv->brightness_ctrlbar_valchanged_id = 0;
285 if (priv->dispchkbtn_toggled_id != 0)
287 g_signal_handler_disconnect (priv->dispchkbtn, priv->dispchkbtn_toggled_id);
288 priv->dispchkbtn_toggled_id = 0;
291 if (priv->display_keepalive_timeout != 0)
293 g_source_remove(priv->display_keepalive_timeout);
294 priv->display_keepalive_timeout = 0;
297 if (priv->gconfnotify_id != 0)
299 gconf_client_notify_remove (priv->gconf_client, priv->gconfnotify_id);
300 priv->gconfnotify_id = 0;
301 gconf_client_remove_dir (priv->gconf_client, SIMPLE_BRIGHTNESS_GCONF_PATH, NULL);
304 if (priv->gconf_client)
306 gconf_client_clear_cache (priv->gconf_client);
307 g_object_unref (priv->gconf_client);
308 priv->gconf_client = NULL;
311 if (priv->osso_context)
313 osso_deinitialize(priv->osso_context);
314 priv->osso_context = NULL;
317 G_OBJECT_CLASS (simple_brightness_applet_parent_class)->finalize (object);
320 SimpleBrightnessApplet* simple_brightness_applet_new (void)
322 return g_object_new (SIMPLE_TYPE_BRIGHTNESS_APPLET, NULL);