git.maemo.org Git - sbrightapplet/blob - src/simple-brightness-applet.c

   1 /*
   2  * simple-brightness-applet - simple statusarea applet that allows the user to select the brightness from a range of 1-5
   3  *
   4  * Copyright (c) 2009-2010 Faheem Pervez <trippin1@gmail.com>
   5  *
   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.
  10  *
  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.
  15  *
  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,
  19  * MA 02110-1301, USA.
  20  *
  21  */
  22
  23 //#ifdef HAVE_CONFIG_H
  24 #include <config.h>
  25 //#endif
  26
  27 #include "simple-brightness-applet.h"
  28
  29 #include <glib/gi18n-lib.h>
  30 #include <string.h>
  31 #include <libosso.h>
  32 #include <gconf/gconf-client.h>
  33 #include <gtk/gtk.h>
  34 #include <hildon/hildon.h>
  35
  36 #ifdef HILDON_DISABLE_DEPRECATED
  37 #undef HILDON_DISABLE_DEPRECATED
  38 #endif
  39
  40 HD_DEFINE_PLUGIN_MODULE (SimpleBrightnessApplet, simple_brightness_applet, HD_TYPE_STATUS_MENU_ITEM)
  41
  42 #define SIMPLE_BRIGHTNESS_GCONF_PATH "/system/osso/dsm/display"
  43 #define BRIGHTNESS_KEY SIMPLE_BRIGHTNESS_GCONF_PATH "/display_brightness"
  44
  45 #define SIMPLE_BRIGHTNESS_APPLET_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), \
  46                                                 SIMPLE_TYPE_BRIGHTNESS_APPLET, SimpleBrightnessAppletPrivate))
  47
  48 struct _SimpleBrightnessAppletPrivate
  49 {
  50         GConfClient *gconf_client;
  51         GtkHBox *applet_contents;
  52         HildonControlbar *brightness_ctrlbar;
  53         GtkWidget *settings_dialog;
  54         GtkWidget *dispchkbtn;
  55         GtkWidget *applet_button;
  56
  57         gulong brightness_ctrlbar_valchanged_id;
  58         gulong dispchkbtn_toggled_id;
  59         guint gconfnotify_id;
  60         guint display_keepalive_timeout;
  61
  62         gboolean keepdispon_active;
  63
  64         osso_context_t *osso_context;
  65 };
  66
  67 static void simple_brightness_applet_finalize (GObject *object);
  68
  69 /* Callbacks: */
  70 static inline void simple_brightness_applet_show_fail_msg (void)
  71 {
  72         hildon_banner_show_information (NULL, NULL, _("Failed to keep backlight on"));
  73 }
  74
  75 static gboolean simple_brightness_applet_keep_backlight_alive (SimpleBrightnessApplet *plugin)
  76 {
  77         osso_display_state_on (plugin->priv->osso_context);
  78         if (osso_display_blanking_pause (plugin->priv->osso_context) != OSSO_OK)
  79         {
  80                 simple_brightness_applet_show_fail_msg ();
  81                 plugin->priv->display_keepalive_timeout = 0;
  82                 g_signal_handler_block (plugin->priv->dispchkbtn, plugin->priv->dispchkbtn_toggled_id);
  83                 plugin->priv->keepdispon_active = FALSE;
  84                 hildon_check_button_set_active (HILDON_CHECK_BUTTON (plugin->priv->dispchkbtn), FALSE);
  85                 g_signal_handler_unblock (plugin->priv->dispchkbtn, plugin->priv->dispchkbtn_toggled_id);
  86                 return FALSE;
  87         }
  88         return TRUE;
  89 }
  90
  91 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)
  92 {
  93         g_signal_handler_block (plugin->priv->brightness_ctrlbar, plugin->priv->brightness_ctrlbar_valchanged_id);
  94         hildon_controlbar_set_value (plugin->priv->brightness_ctrlbar, gconf_client_get_int (plugin->priv->gconf_client, BRIGHTNESS_KEY, NULL));
  95         g_signal_handler_unblock (plugin->priv->brightness_ctrlbar, plugin->priv->brightness_ctrlbar_valchanged_id);
  96 }
  97
  98 static void simple_brightness_applet_on_value_changed (HildonControlbar *brightness_ctrlbar G_GNUC_UNUSED, SimpleBrightnessApplet *plugin)
  99 {
 100         gconf_client_set_int (plugin->priv->gconf_client, BRIGHTNESS_KEY, hildon_controlbar_get_value (plugin->priv->brightness_ctrlbar), NULL);
 101 }
 102
 103 static void simple_brightness_applet_on_settings_button_clicked (GtkWidget *button G_GNUC_UNUSED, SimpleBrightnessApplet *plugin)
 104 {
 105         gtk_widget_hide (plugin->priv->settings_dialog);
 106
 107         if (plugin->priv->osso_context)
 108                 osso_cp_plugin_execute (plugin->priv->osso_context, "libcpdisplay.so", NULL, TRUE);
 109
 110         gtk_widget_destroy (plugin->priv->settings_dialog);
 111 }
 112
 113 static void simple_brightness_applet_on_dispchkbtn_toggled (GtkWidget *button G_GNUC_UNUSED, SimpleBrightnessApplet *plugin)
 114 {
 115         GdkPixbuf *pixbuf;
 116
 117         plugin->priv->keepdispon_active = hildon_check_button_get_active (HILDON_CHECK_BUTTON (plugin->priv->dispchkbtn));
 118         g_signal_handler_block (plugin->priv->dispchkbtn, plugin->priv->dispchkbtn_toggled_id);
 119         gtk_widget_hide(plugin->priv->settings_dialog);
 120
 121         if (plugin->priv->keepdispon_active)
 122         {
 123                 simple_brightness_applet_keep_backlight_alive (plugin);
 124                 plugin->priv->display_keepalive_timeout = g_timeout_add_seconds (50, (GSourceFunc) simple_brightness_applet_keep_backlight_alive, plugin);
 125                 if (plugin->priv->display_keepalive_timeout == 0)
 126                 {
 127                         plugin->priv->keepdispon_active = FALSE;
 128                         hildon_check_button_set_active (HILDON_CHECK_BUTTON (plugin->priv->dispchkbtn), FALSE);
 129                         simple_brightness_applet_show_fail_msg ();
 130                         goto finish;
 131                 }
 132
 133                 gtk_widget_set_name (plugin->priv->applet_button, "hildon-reject-button-finger");
 134                 pixbuf = gtk_icon_theme_load_icon (gtk_icon_theme_get_default (), "general_brightness", 18, 0, NULL);
 135                 if (pixbuf)
 136                 {
 137                         hd_status_plugin_item_set_status_area_icon (HD_STATUS_PLUGIN_ITEM (plugin), pixbuf);
 138                         g_object_unref (pixbuf);
 139                 }
 140         }
 141         else
 142         {
 143                 if (g_source_remove (plugin->priv->display_keepalive_timeout))
 144                 {
 145                         gtk_widget_set_name (plugin->priv->applet_button, "GtkButton-finger");
 146                         hd_status_plugin_item_set_status_area_icon (HD_STATUS_PLUGIN_ITEM (plugin), NULL);
 147                         plugin->priv->display_keepalive_timeout = 0;
 148                 }
 149                 else
 150                 {
 151                         plugin->priv->keepdispon_active = TRUE;
 152                         hildon_check_button_set_active (HILDON_CHECK_BUTTON (plugin->priv->dispchkbtn), plugin->priv->keepdispon_active);
 153                 }
 154         }
 155
 156 finish:
 157         g_signal_handler_unblock (plugin->priv->dispchkbtn, plugin->priv->dispchkbtn_toggled_id);
 158         gtk_widget_destroy(plugin->priv->settings_dialog);
 159 }
 160
 161 /* Setup applet and dialogs: */
 162 static void simple_brightness_applet_on_button_clicked (GtkWidget *button, SimpleBrightnessApplet *plugin)
 163 {
 164         GtkWidget *settings_button;
 165
 166         gtk_widget_hide (gtk_widget_get_toplevel (button));
 167
 168         plugin->priv->settings_dialog = gtk_dialog_new ();
 169         gtk_window_set_title (GTK_WINDOW (plugin->priv->settings_dialog), "Simple Brightness Applet:");
 170         gtk_window_set_destroy_with_parent (GTK_WINDOW (plugin->priv->settings_dialog), TRUE);
 171
 172         settings_button = hildon_gtk_button_new (HILDON_SIZE_FINGER_HEIGHT | HILDON_SIZE_AUTO_WIDTH);
 173         gtk_button_set_label (GTK_BUTTON (settings_button), _("Open Display Settings..."));
 174         gtk_button_set_image (GTK_BUTTON (settings_button), gtk_image_new_from_icon_name ("general_brightness", HILDON_ICON_SIZE_THUMB));
 175         gtk_box_pack_start (GTK_BOX (GTK_DIALOG (plugin->priv->settings_dialog)->vbox), settings_button, TRUE, TRUE, 0);
 176         g_signal_connect (settings_button, "clicked", G_CALLBACK (simple_brightness_applet_on_settings_button_clicked), plugin);
 177
 178         plugin->priv->dispchkbtn = hildon_check_button_new (HILDON_SIZE_FINGER_HEIGHT | HILDON_SIZE_AUTO_WIDTH);
 179         gtk_button_set_label (GTK_BUTTON (plugin->priv->dispchkbtn), _("Keep display on"));
 180         gtk_button_set_alignment (GTK_BUTTON (plugin->priv->dispchkbtn), 0.5f, 0.5f);
 181         hildon_check_button_set_active (HILDON_CHECK_BUTTON (plugin->priv->dispchkbtn), plugin->priv->keepdispon_active);
 182         gtk_box_pack_start (GTK_BOX (GTK_DIALOG (plugin->priv->settings_dialog)->vbox), plugin->priv->dispchkbtn, TRUE, TRUE, 0);
 183         plugin->priv->dispchkbtn_toggled_id = g_signal_connect (plugin->priv->dispchkbtn, "toggled", G_CALLBACK (simple_brightness_applet_on_dispchkbtn_toggled), plugin);
 184
 185         gtk_widget_show_all (plugin->priv->settings_dialog);
 186 }
 187
 188 static inline void simple_brightness_applet_setup (SimpleBrightnessApplet *plugin)
 189 {
 190         plugin->priv->applet_contents = GTK_HBOX (gtk_hbox_new (FALSE, 0));
 191
 192         plugin->priv->applet_button = hildon_gtk_button_new (HILDON_SIZE_FINGER_HEIGHT);
 193         gtk_box_pack_start (GTK_BOX (plugin->priv->applet_contents), plugin->priv->applet_button, FALSE, TRUE, 0);
 194         g_signal_connect (plugin->priv->applet_button, "clicked", G_CALLBACK(simple_brightness_applet_on_button_clicked), plugin);
 195         gtk_button_set_image (GTK_BUTTON (plugin->priv->applet_button), gtk_image_new_from_icon_name ("general_brightness", HILDON_ICON_SIZE_THUMB));
 196
 197         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. */
 198         hildon_gtk_widget_set_theme_size(GTK_WIDGET(plugin->priv->brightness_ctrlbar), HILDON_SIZE_FINGER_HEIGHT | HILDON_SIZE_AUTO_WIDTH);
 199         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));
 200         hildon_controlbar_set_value (plugin->priv->brightness_ctrlbar, gconf_client_get_int(plugin->priv->gconf_client, BRIGHTNESS_KEY, NULL));
 201         plugin->priv->brightness_ctrlbar_valchanged_id = g_signal_connect (plugin->priv->brightness_ctrlbar, "value-changed", G_CALLBACK(simple_brightness_applet_on_value_changed), plugin);
 202         gtk_box_pack_start (GTK_BOX (plugin->priv->applet_contents), GTK_WIDGET (plugin->priv->brightness_ctrlbar), FALSE, TRUE, 0);
 203
 204         gconf_client_add_dir (plugin->priv->gconf_client, SIMPLE_BRIGHTNESS_GCONF_PATH, GCONF_CLIENT_PRELOAD_NONE, NULL);
 205         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);
 206 }
 207
 208 /* GObject stuff: */
 209 static void simple_brightness_applet_class_init (SimpleBrightnessAppletClass *klass)
 210 {
 211         GObjectClass *object_class = G_OBJECT_CLASS (klass);
 212
 213         object_class->finalize = (GObjectFinalizeFunc) simple_brightness_applet_finalize;
 214
 215         g_type_class_add_private (klass, sizeof (SimpleBrightnessAppletPrivate));
 216 }
 217
 218 static void simple_brightness_applet_class_finalize (SimpleBrightnessAppletClass *klass G_GNUC_UNUSED) {}
 219
 220 static void simple_brightness_applet_init (SimpleBrightnessApplet *plugin)
 221 {
 222         plugin->priv = SIMPLE_BRIGHTNESS_APPLET_GET_PRIVATE (plugin);
 223         if (G_UNLIKELY (!plugin->priv))
 224                 return;
 225         memset (plugin->priv, 0, sizeof (SimpleBrightnessAppletPrivate));
 226
 227         bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
 228         bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
 229
 230         plugin->priv->keepdispon_active = FALSE;
 231
 232         plugin->priv->osso_context = osso_initialize (PACKAGE, PACKAGE_VERSION, TRUE, NULL);
 233         if (G_UNLIKELY (!plugin->priv->osso_context))
 234                 return;
 235
 236         plugin->priv->gconf_client = gconf_client_get_default ();
 237         if (G_UNLIKELY (!plugin->priv->gconf_client))
 238                 return;
 239
 240         simple_brightness_applet_setup (plugin);
 241         gtk_container_add (GTK_CONTAINER (plugin), GTK_WIDGET (plugin->priv->applet_contents));
 242         gtk_widget_show_all (GTK_WIDGET (plugin));
 243 }
 244
 245 static void simple_brightness_applet_finalize (GObject *object)
 246 {
 247         SimpleBrightnessApplet *plugin = SIMPLE_BRIGHTNESS_APPLET (object);
 248
 249         if (plugin->priv->brightness_ctrlbar_valchanged_id != 0)
 250                 g_signal_handler_disconnect (plugin->priv->brightness_ctrlbar, plugin->priv->brightness_ctrlbar_valchanged_id);
 251
 252         if (plugin->priv->display_keepalive_timeout != 0)
 253                 g_source_remove (plugin->priv->display_keepalive_timeout);
 254
 255         if (plugin->priv->gconfnotify_id != 0)
 256         {
 257                 gconf_client_notify_remove (plugin->priv->gconf_client, plugin->priv->gconfnotify_id);
 258                 gconf_client_remove_dir (plugin->priv->gconf_client, SIMPLE_BRIGHTNESS_GCONF_PATH, NULL);
 259         }
 260
 261         if (plugin->priv->gconf_client)
 262         {
 263                 gconf_client_clear_cache (plugin->priv->gconf_client);
 264                 g_object_unref (plugin->priv->gconf_client);
 265         }
 266
 267         if (plugin->priv->osso_context)
 268                 osso_deinitialize (plugin->priv->osso_context);
 269
 270         G_OBJECT_CLASS (simple_brightness_applet_parent_class)->finalize (object);
 271 }