src/app_power.vala

   1 /*
   2  * app_power - zavai power handling
   3  *
   4  * Copyright (C) 2009  Enrico Zini <enrico@enricozini.org>
   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 using GLib;
  22
  23 namespace zavai {
  24 namespace ui {
  25 namespace power {
  26
  27 // Compute a-b in microseconds
  28 static long timediff(Posix.timeval* a, Posix.timeval* b)
  29 {
  30         return (a->tv_sec - b->tv_sec) * 1000000 + (a->tv_usec - b->tv_usec);
  31 }
  32
  33 public class Power : zavai.Resource, Object
  34 {
  35         public dynamic DBus.Object usage;
  36         public bool screen_locked;
  37         private int screen_lock_fd;
  38         // Timestamp of the past power button pressed even (0 if the button has
  39         // been released)
  40         private Posix.timeval last_down;
  41
  42         private bool hide_after_closing_power_menu;
  43
  44         public signal void screen_lock_changed(bool state);
  45
  46         public Power()
  47         {
  48                 screen_locked = false;
  49                 screen_lock_fd = -1;
  50                 hide_after_closing_power_menu = false;
  51                 last_down.tv_sec = 0;
  52                 last_down.tv_usec = 0;
  53
  54                 usage = zavai.registry.sbus.get_object(
  55                         "org.freesmartphone.ousaged",
  56                         "/org/freesmartphone/Usage",
  57                         "org.freesmartphone.Usage");
  58
  59                 zavai.input.power_button.power_button += on_power_button;
  60                 zavai.input.power_button.request("zavai.ui.powerbutton.power");
  61         }
  62
  63         public void shutdown()
  64         {
  65                 zavai.input.power_button.release("zavai.ui.powerbutton.power");
  66         }
  67
  68         public void do_suspend() { usage.Suspend(); }
  69         public void do_shutdown() { usage.Shutdown(); }
  70         public void do_reboot() { usage.Reboot(); }
  71
  72         public void set_screen_lock(bool locked)
  73         {
  74                 if (locked && screen_locked)
  75                         return;
  76                 if (!locked && !screen_locked)
  77                         return;
  78
  79                 if (locked)
  80                 {
  81                         screen_lock_fd = Posix.open("/dev/input/event1", Posix.O_RDWR | Posix.O_NONBLOCK);
  82                         if (screen_lock_fd < 0)
  83                         {
  84                                 zavai.log.error("Cannot open /dev/input/event1");
  85                                 return;
  86                         }
  87
  88                         int EVIOCGRAB = 0x40044590;
  89                         if (Posix.ioctl(screen_lock_fd, EVIOCGRAB, locked ? 1 : 0) != 0)
  90                         {
  91                                 zavai.log.error("Cannot EVIOCGRAB /dev/input/event1");
  92                                 Posix.close(screen_lock_fd);
  93                                 return;
  94                         }
  95                 } else {
  96                         Posix.close(screen_lock_fd);
  97                 }
  98                 screen_locked = locked;
  99                 if (!locked)
 100                         backlight.wiggle();
 101
 102                 screen_lock_changed(locked);
 103         }
 104
 105         private void on_power_button(Posix.timeval* t, bool pressed)
 106         {
 107                 bool short_press = false;
 108                 bool long_press = false;
 109
 110                 if (pressed)
 111                 {
 112                         if (last_down.tv_sec == 0)
 113                                 last_down = *t;
 114                         else
 115                         {
 116                                 long diff = timediff(t, &last_down);
 117                                 long_press = diff >= 1500000;
 118                         }
 119                 } else {
 120                         long diff = timediff(t, &last_down);
 121                         if (diff >= 1500000)
 122                                 long_press = true;
 123                         else
 124                                 short_press = true;
 125
 126                         last_down.tv_sec = 0;
 127                         last_down.tv_usec = 0;
 128                 }
 129
 130                 if (short_press) {
 131                         if (screen_locked)
 132                                 // Short press: turn on backlight for a bit
 133                                 backlight.wiggle();
 134                         else
 135                                 // Short press: toggle power menu
 136                                 power_menu.toggle();
 137                 } else if (long_press) {
 138                         if (screen_locked)
 139                                 // Long press: unlock
 140                                 set_screen_lock(false);
 141                         else
 142                                 // Long press: lock screen
 143                                 set_screen_lock(true);
 144                 }
 145         }
 146 }
 147
 148 public class BatteryIcon : Gtk.StatusIcon
 149 {
 150         public dynamic DBus.Object battery;
 151         protected string last_status;
 152         protected int last_capacity;
 153
 154         public BatteryIcon()
 155         {
 156                 battery = zavai.registry.sbus.get_object(
 157                         "org.freesmartphone.odeviced",
 158                         "/org/freesmartphone/Device/PowerSupply/battery",
 159                         "org.freesmartphone.Device.PowerSupply");
 160
 161                 // activate += on_activate;
 162
 163                 battery.PowerStatus += on_power_status;
 164                 battery.Capacity += on_capacity;
 165
 166                 last_status = battery.GetPowerStatus();
 167                 last_capacity = battery.GetCapacity();
 168
 169                 update_icon();
 170         }
 171
 172         private void on_power_status(dynamic DBus.Object bat, string status)
 173         {
 174                 zavai.log.info("New battery status: " + status);
 175                 last_status = status;
 176                 update_icon();
 177         }
 178
 179         private void on_capacity(dynamic DBus.Object bat, int val)
 180         {
 181 stderr.printf("NEW CAPACITY: %d\n", val);
 182                 last_capacity = val;
 183                 update_icon();
 184         }
 185
 186         /*
 187         private void on_activate()
 188         {
 189         }
 190         */
 191
 192         protected void update_icon()
 193         {
 194                 string name = zavai.config.icondir + "/battery/";
 195
 196                 if (last_status == "charging")
 197                         name += "%02d0_charging_500.png".printf(last_capacity/10);
 198                 else
 199                         name += "%02d0.png".printf(last_capacity/10);
 200
 201 stderr.printf("Loading icon from %s\n", name);
 202
 203                 set_from_file(name);
 204         }
 205 }
 206
 207 public class ScreenLockButton : Gtk.Button
 208 {
 209         public ScreenLockButton()
 210         {
 211                 label = "Lock screen";
 212                 clicked += on_clicked;
 213                 set_size_request(0, zavai.config.min_button_height);
 214         }
 215
 216         public void on_clicked()
 217         {
 218                 zavai.log.info("Locking screen");
 219                 power.set_screen_lock(true);
 220                 power_menu.hide();
 221         }
 222 }
 223
 224 public class SuspendButton : Gtk.Button
 225 {
 226         public SuspendButton()
 227         {
 228                 label = "Suspend";
 229                 clicked += on_clicked;
 230                 set_size_request(0, zavai.config.min_button_height);
 231         }
 232
 233         public void on_clicked()
 234         {
 235                 zavai.log.info("Suspending the phone via FSO");
 236                 power.do_suspend();
 237                 power_menu.hide();
 238         }
 239 }
 240
 241 public class ShutdownButton : Gtk.Button
 242 {
 243         public ShutdownButton()
 244         {
 245                 label = "Shut down";
 246                 clicked += on_clicked;
 247                 set_size_request(0, zavai.config.min_button_height);
 248         }
 249
 250         public void on_clicked()
 251         {
 252                 zavai.log.info("Shutting down the phone via FSO");
 253                 power.do_shutdown();
 254                 power_menu.hide();
 255         }
 256 }
 257
 258 public class RebootButton : Gtk.Button
 259 {
 260         public RebootButton()
 261         {
 262                 label = "Reboot";
 263                 clicked += on_clicked;
 264                 set_size_request(0, zavai.config.min_button_height);
 265         }
 266
 267         public void on_clicked()
 268         {
 269                 zavai.log.info("Rebooting the phone via FSO");
 270                 power.do_reboot();
 271                 power_menu.hide();
 272         }
 273 }
 274
 275 // For a list of dbus services, look in /etc/dbus-1/system.d/
 276 public class Backlight: zavai.Service
 277 {
 278         public dynamic DBus.Object usage;
 279
 280         public Backlight()
 281         {
 282                 name = "backlight";
 283
 284                 usage = zavai.registry.sbus.get_object(
 285                         "org.freesmartphone.ousaged",
 286                         "/org/freesmartphone/Usage",
 287                         "org.freesmartphone.Usage");
 288         }
 289
 290         // Turn the backlight and then let it fade off
 291         public void wiggle()
 292         {
 293                 // There must be a better method
 294                 usage.RequestResource("Display");
 295                 usage.ReleaseResource("Display");
 296         }
 297
 298         /// Request GPS resource
 299         public override void start()
 300         {
 301                 if (started) return;
 302                 try {
 303                         usage.RequestResource("Display");
 304                         zavai.log.info("Acquired display");
 305                         base.start();
 306                 } catch (GLib.Error e) {
 307                         zavai.log.error(e.message);
 308                 }
 309                 base.start();
 310         }
 311
 312         // Release usage of GPS
 313         public override void stop()
 314         {
 315                 if (!started) return;
 316                 try {
 317                         usage.ReleaseResource("Display");
 318                         zavai.log.info("Released display");
 319                         base.stop();
 320                 } catch (GLib.Error e) {
 321                         zavai.log.error(e.message);
 322                 }
 323                 base.stop();
 324         }
 325 }
 326
 327 public class PowerMenu : zavai.Resource, Gtk.Window
 328 {
 329         protected Gtk.VBox vbox;
 330         protected ScreenLockButton act_screen_lock;
 331         protected SuspendButton act_suspend;
 332         protected ShutdownButton act_shutdown;
 333         protected RebootButton act_reboot;
 334         protected ServiceRequestLink act_backlight_on;
 335         protected bool shown;
 336
 337         public PowerMenu()
 338         {
 339                 type = Gtk.WindowType.TOPLEVEL;
 340                 title = "Power Menu";
 341                 shown = false;
 342                 destroy_with_parent = true;
 343                 set_transient_for(zavai.app);
 344                 set_modal(true);
 345                 set_position(Gtk.WindowPosition.CENTER_ON_PARENT);
 346                 set_size_request(300, 500);
 347
 348                 vbox = new Gtk.VBox(false, 0);
 349                 add(vbox);
 350
 351                 //destroy += Gtk.main_quit;
 352                 //set_events(get_events() | Gdk.EventMask.VISIBILITY_NOTIFY_MASK);
 353                 //visibility_notify_event += on_visibility;
 354                 set_skip_pager_hint(true);
 355                 set_skip_taskbar_hint(true);
 356                 set_type_hint(Gdk.WindowTypeHint.POPUP_MENU);
 357
 358                 act_screen_lock = new ScreenLockButton();
 359                 vbox.pack_start(act_screen_lock, false, false, 0);
 360
 361                 act_suspend = new SuspendButton();
 362                 vbox.pack_start(act_suspend, false, false, 0);
 363
 364                 act_shutdown = new ShutdownButton();
 365                 vbox.pack_start(act_shutdown, false, false, 0);
 366
 367                 act_reboot = new RebootButton();
 368                 vbox.pack_start(act_reboot, false, false, 0);
 369
 370                 act_backlight_on = new ServiceRequestLink("backlight", "Keep backlight on", "Let backlight fade");
 371                 vbox.pack_start(act_backlight_on, false, false, 0);
 372
 373                 //vbox.show_all();
 374         }
 375
 376         public void toggle()
 377         {
 378                 if (!shown)
 379                 {
 380                         show_all();
 381                         show();
 382                         visible = true;
 383                         present();
 384                         shown = true;
 385                 } else {
 386                         // TODO: do more in case it is visible but has no visibility (is covered by others)
 387                         visible = !visible;
 388                         if (visible)
 389                                 present();
 390                 }
 391         }
 392
 393         public void hide()
 394         {
 395                 visible = false;
 396         }
 397
 398         public void shutdown() {}
 399 }
 400
 401 /*
 402 public class TogglePowerMenu : Gtk.Button
 403 {
 404         public TogglePowerMenu()
 405         {
 406                 label = "Toggle power menu";
 407                 clicked += on_clicked;
 408                 set_size_request(0, zavai.config.min_button_height);
 409         }
 410
 411         public void on_clicked()
 412         {
 413                 zavai.log.info("Toggling power menu");
 414                 power_menu.toggle();
 415         }
 416 }
 417 */
 418
 419 Power power;
 420 PowerMenu power_menu;
 421 BatteryIcon battery_icon;
 422 Backlight backlight;
 423 //TogglePowerMenu tpm;
 424
 425 public void init()
 426 {
 427         power = new Power();
 428         backlight = new Backlight();
 429         zavai.registry.register_service(backlight);
 430
 431         battery_icon = new BatteryIcon();
 432         battery_icon.set_visible(true);
 433
 434         power_menu = new PowerMenu();
 435         zavai.registry.register_resource("powermenu", power_menu);
 436
 437     //zavai.registry.getmenu("menu.main").add_applet("menu.power");
 438         //tpm = new TogglePowerMenu();
 439     //zavai.registry.getmenu("menu.main").add_widget(tpm);
 440
 441     /*
 442         raise_icon = new RaiseIcon();
 443         raise_icon.set_visible(true);
 444
 445         close_or_back = new CloseOrBack();
 446         close_or_back.set_visible(true);
 447
 448         window_list = new WindowList("Current apps");
 449         zavai.registry.register_applet("wm.list", window_list);
 450         zavai.registry.getmenu("menu.main").add_applet("wm.list");
 451
 452         try {
 453                 launcher = new Launcher("Run program");
 454         } catch (Error e) {
 455                 zavai.log.error("Not running launcher: " + e.message);
 456                 launcher = null;
 457         }
 458
 459         if (launcher != null)
 460         {
 461                 zavai.registry.register_applet("wm.launcher", launcher);
 462                 zavai.registry.getmenu("menu.main").add_applet("wm.launcher");
 463         }
 464     */
 465 }
 466
 467 }
 468 }
 469 }