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 <gconf/gconf-client.h>
33 #include <hildon/hildon.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 struct _SimpleBrightnessAppletPrivate
49 GConfClient *gconf_client;
50 GtkHBox *applet_contents;
51 HildonControlbar *brightness_ctrlbar;
52 GtkWidget *settings_dialog;
53 GtkWidget *dispchkbtn;
54 GtkWidget *applet_button;
56 gulong brightness_ctrlbar_valchanged_id;
57 gulong dispchkbtn_toggled_id;
59 guint display_keepalive_timeout;
61 gboolean dispchkbtn_active;
63 osso_context_t *osso_context;
66 static void simple_brightness_applet_finalize (GObject *object);
69 static gboolean simple_brightness_applet_keep_backlight_alive (SimpleBrightnessApplet *plugin)
71 g_return_val_if_fail (plugin->priv->osso_context, FALSE);
73 osso_display_state_on (plugin->priv->osso_context);
74 return (osso_display_blanking_pause (plugin->priv->osso_context) == OSSO_OK);
77 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)
79 g_signal_handler_block (plugin->priv->brightness_ctrlbar, plugin->priv->brightness_ctrlbar_valchanged_id);
80 hildon_controlbar_set_value (plugin->priv->brightness_ctrlbar, gconf_client_get_int (plugin->priv->gconf_client, BRIGHTNESS_KEY, NULL));
81 g_signal_handler_unblock (plugin->priv->brightness_ctrlbar, plugin->priv->brightness_ctrlbar_valchanged_id);
84 static void simple_brightness_applet_on_value_changed (HildonControlbar *brightness_ctrlbar G_GNUC_UNUSED, SimpleBrightnessApplet *plugin)
86 gconf_client_set_int (plugin->priv->gconf_client, BRIGHTNESS_KEY, hildon_controlbar_get_value (plugin->priv->brightness_ctrlbar), NULL);
89 static void simple_brightness_applet_on_settings_button_clicked (GtkWidget *button G_GNUC_UNUSED, SimpleBrightnessApplet *plugin)
91 gtk_widget_hide (plugin->priv->settings_dialog);
93 if (plugin->priv->osso_context)
94 osso_cp_plugin_execute (plugin->priv->osso_context, "libcpdisplay.so", NULL, TRUE);
96 gtk_widget_destroy (plugin->priv->settings_dialog);
99 static void simple_brightness_applet_on_dispchkbtn_toggled (GtkWidget *button G_GNUC_UNUSED, SimpleBrightnessApplet *plugin)
101 GdkPixbuf *pixbuf = NULL;
103 plugin->priv->dispchkbtn_active = hildon_check_button_get_active (HILDON_CHECK_BUTTON(plugin->priv->dispchkbtn));
105 g_signal_handler_block (plugin->priv->dispchkbtn, plugin->priv->dispchkbtn_toggled_id);
107 gtk_widget_hide(plugin->priv->settings_dialog);
109 if (plugin->priv->dispchkbtn_active)
111 simple_brightness_applet_keep_backlight_alive(plugin);
112 plugin->priv->display_keepalive_timeout = g_timeout_add_seconds(50, (GSourceFunc) simple_brightness_applet_keep_backlight_alive, plugin);
113 if (plugin->priv->display_keepalive_timeout == 0)
115 hildon_banner_show_information(NULL, NULL, "Failed to keep backlight on");
116 plugin->priv->dispchkbtn_active = FALSE;
117 hildon_check_button_set_active(HILDON_CHECK_BUTTON(plugin->priv->dispchkbtn), plugin->priv->dispchkbtn_active);
118 g_signal_handler_unblock (plugin->priv->dispchkbtn, plugin->priv->dispchkbtn_toggled_id);
122 gtk_widget_set_name(plugin->priv->applet_button, "hildon-reject-button-finger");
123 pixbuf = gtk_icon_theme_load_icon (gtk_icon_theme_get_default(), "general_brightness", 18, 0, NULL);
126 hd_status_plugin_item_set_status_area_icon (HD_STATUS_PLUGIN_ITEM (plugin), pixbuf);
127 g_object_unref (pixbuf);
133 if(g_source_remove(plugin->priv->display_keepalive_timeout))
135 gtk_widget_set_name(plugin->priv->applet_button, "GtkButton-finger");
136 hd_status_plugin_item_set_status_area_icon (HD_STATUS_PLUGIN_ITEM (plugin), NULL);
137 plugin->priv->display_keepalive_timeout = 0;
141 plugin->priv->dispchkbtn_active = TRUE;
142 hildon_check_button_set_active(HILDON_CHECK_BUTTON(plugin->priv->dispchkbtn), plugin->priv->dispchkbtn_active);
146 g_signal_handler_unblock (plugin->priv->dispchkbtn, plugin->priv->dispchkbtn_toggled_id);
147 gtk_widget_destroy(plugin->priv->settings_dialog);
150 /* Setup applet and dialogs: */
151 static void simple_brightness_applet_on_button_clicked (GtkWidget *button, SimpleBrightnessApplet *plugin)
153 GtkWidget *settings_button;
155 gtk_widget_hide (gtk_widget_get_toplevel (button));
157 plugin->priv->settings_dialog = gtk_dialog_new ();
158 gtk_window_set_title (GTK_WINDOW (plugin->priv->settings_dialog), "Simple Brightness Applet:");
159 gtk_window_set_destroy_with_parent (GTK_WINDOW (plugin->priv->settings_dialog), TRUE);
161 settings_button = hildon_gtk_button_new (HILDON_SIZE_FINGER_HEIGHT | HILDON_SIZE_AUTO_WIDTH);
162 gtk_button_set_label (GTK_BUTTON (settings_button), "Open Display Settings...");
163 gtk_button_set_image (GTK_BUTTON (settings_button), gtk_image_new_from_icon_name ("general_brightness", HILDON_ICON_SIZE_THUMB));
164 gtk_box_pack_start (GTK_BOX (GTK_DIALOG (plugin->priv->settings_dialog)->vbox), settings_button, TRUE, TRUE, 0);
165 g_signal_connect (settings_button, "clicked", G_CALLBACK (simple_brightness_applet_on_settings_button_clicked), plugin);
167 plugin->priv->dispchkbtn = hildon_check_button_new (HILDON_SIZE_FINGER_HEIGHT | HILDON_SIZE_AUTO_WIDTH);
168 gtk_button_set_label (GTK_BUTTON (plugin->priv->dispchkbtn), "Keep display on");
169 gtk_button_set_alignment (GTK_BUTTON (plugin->priv->dispchkbtn), 0.5f, 0.5f);
170 hildon_check_button_set_active (HILDON_CHECK_BUTTON (plugin->priv->dispchkbtn), plugin->priv->dispchkbtn_active);
171 gtk_box_pack_start (GTK_BOX (GTK_DIALOG (plugin->priv->settings_dialog)->vbox), plugin->priv->dispchkbtn, TRUE, TRUE, 0);
172 plugin->priv->dispchkbtn_toggled_id = g_signal_connect (plugin->priv->dispchkbtn, "toggled", G_CALLBACK (simple_brightness_applet_on_dispchkbtn_toggled), plugin);
174 gtk_widget_show_all (plugin->priv->settings_dialog);
177 static inline void simple_brightness_applet_setup (SimpleBrightnessApplet *plugin)
179 plugin->priv->applet_contents = GTK_HBOX (gtk_hbox_new (FALSE, 0));
181 plugin->priv->applet_button = hildon_gtk_button_new (HILDON_SIZE_FINGER_HEIGHT);
182 gtk_box_pack_start (GTK_BOX (plugin->priv->applet_contents), plugin->priv->applet_button, FALSE, TRUE, 0);
183 g_signal_connect (plugin->priv->applet_button, "clicked", G_CALLBACK(simple_brightness_applet_on_button_clicked), plugin);
184 gtk_button_set_image (GTK_BUTTON (plugin->priv->applet_button), gtk_image_new_from_icon_name ("general_brightness", HILDON_ICON_SIZE_THUMB));
186 plugin->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. */
187 hildon_gtk_widget_set_theme_size(GTK_WIDGET(plugin->priv->brightness_ctrlbar), HILDON_SIZE_FINGER_HEIGHT | HILDON_SIZE_AUTO_WIDTH);
188 hildon_controlbar_set_range (plugin->priv->brightness_ctrlbar, gconf_client_get_int(plugin->priv->gconf_client, "/system/osso/dsm/display/display_brightness_level_step", NULL), gconf_client_get_int(plugin->priv->gconf_client, "/system/osso/dsm/display/max_display_brightness_levels", NULL));
189 hildon_controlbar_set_value (plugin->priv->brightness_ctrlbar, gconf_client_get_int(plugin->priv->gconf_client, BRIGHTNESS_KEY, NULL));
190 plugin->priv->brightness_ctrlbar_valchanged_id = g_signal_connect (plugin->priv->brightness_ctrlbar, "value-changed", G_CALLBACK(simple_brightness_applet_on_value_changed), plugin);
191 gtk_box_pack_start (GTK_BOX (plugin->priv->applet_contents), GTK_WIDGET (plugin->priv->brightness_ctrlbar), FALSE, TRUE, 0);
193 gconf_client_add_dir (plugin->priv->gconf_client, SIMPLE_BRIGHTNESS_GCONF_PATH, GCONF_CLIENT_PRELOAD_NONE, NULL);
194 plugin->priv->gconfnotify_id = gconf_client_notify_add (plugin->priv->gconf_client, BRIGHTNESS_KEY, (GConfClientNotifyFunc)simple_brightness_applet_on_gconf_value_changed, plugin, NULL, NULL);
198 static void simple_brightness_applet_class_init (SimpleBrightnessAppletClass *klass)
200 GObjectClass *object_class = G_OBJECT_CLASS (klass);
202 object_class->finalize = (GObjectFinalizeFunc) simple_brightness_applet_finalize;
204 g_type_class_add_private (klass, sizeof (SimpleBrightnessAppletPrivate));
207 static void simple_brightness_applet_class_finalize (SimpleBrightnessAppletClass *klass G_GNUC_UNUSED)
211 static void simple_brightness_applet_init (SimpleBrightnessApplet *plugin)
213 plugin->priv = SIMPLE_BRIGHTNESS_APPLET_GET_PRIVATE (plugin);
214 if (G_UNLIKELY (!plugin->priv))
216 memset (plugin->priv, 0, sizeof (SimpleBrightnessAppletPrivate));
218 plugin->priv->dispchkbtn_active = FALSE;
220 plugin->priv->osso_context = osso_initialize (PACKAGE, PACKAGE_VERSION, TRUE, NULL);
221 if (G_UNLIKELY (!plugin->priv->osso_context))
224 plugin->priv->gconf_client = gconf_client_get_default ();
225 if (G_UNLIKELY (!plugin->priv->gconf_client))
228 simple_brightness_applet_setup (plugin);
229 gtk_container_add (GTK_CONTAINER (plugin), GTK_WIDGET (plugin->priv->applet_contents));
230 gtk_widget_show_all (GTK_WIDGET (plugin));
233 static void simple_brightness_applet_finalize (GObject *object)
235 SimpleBrightnessApplet *plugin = SIMPLE_BRIGHTNESS_APPLET (object);
237 if (plugin->priv->brightness_ctrlbar_valchanged_id != 0)
238 g_signal_handler_disconnect (plugin->priv->brightness_ctrlbar, plugin->priv->brightness_ctrlbar_valchanged_id);
240 if (plugin->priv->display_keepalive_timeout != 0)
241 g_source_remove(plugin->priv->display_keepalive_timeout);
243 if (plugin->priv->gconfnotify_id != 0)
245 gconf_client_notify_remove (plugin->priv->gconf_client, plugin->priv->gconfnotify_id);
246 gconf_client_remove_dir (plugin->priv->gconf_client, SIMPLE_BRIGHTNESS_GCONF_PATH, NULL);
249 if (plugin->priv->gconf_client)
251 gconf_client_clear_cache (plugin->priv->gconf_client);
252 g_object_unref (plugin->priv->gconf_client);
255 if (plugin->priv->osso_context)
256 osso_deinitialize(plugin->priv->osso_context);
258 G_OBJECT_CLASS (simple_brightness_applet_parent_class)->finalize (object);