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 signal void power_short_press();
  47         public signal void power_long_press();
  48         private uint button_press_timeout;
  49
  50         public Power()
  51         {
  52                 screen_locked = false;
  53                 screen_lock_fd = -1;
  54                 hide_after_closing_power_menu = false;
  55                 last_down.tv_sec = 0;
  56                 last_down.tv_usec = 0;
  57                 button_press_timeout = 0;
  58
  59                 usage = zavai.registry.sbus.get_object(
  60                         "org.freesmartphone.ousaged",
  61                         "/org/freesmartphone/Usage",
  62                         "org.freesmartphone.Usage");
  63
  64                 zavai.input.power_button.power_button += on_power_button;
  65                 zavai.input.power_button.request("zavai.ui.powerbutton.power");
  66
  67                 power_short_press += on_power_short_press;
  68                 power_long_press += on_power_long_press;
  69         }
  70
  71         public void shutdown()
  72         {
  73                 zavai.input.power_button.release("zavai.ui.powerbutton.power");
  74         }
  75
  76         public void do_suspend()
  77         {
  78                 try {
  79                         usage.Suspend();
  80                 } catch (Error e) {
  81                         zavai.log.error("Suspending phone: " + e.message);
  82                 }
  83         }
  84         public void do_shutdown()
  85         {
  86                 try {
  87                         usage.Shutdown();
  88                 } catch (Error e) {
  89                         zavai.log.error("Shutting down phone: " + e.message);
  90                 }
  91         }
  92         public void do_reboot()
  93         {
  94                 try {
  95                         usage.Reboot();
  96                 } catch (Error e) {
  97                         zavai.log.error("Rebooting phone: " + e.message);
  98                 }
  99         }
 100
 101         public void set_screen_lock(bool locked)
 102         {
 103                 if (locked && screen_locked)
 104                         return;
 105                 if (!locked && !screen_locked)
 106                         return;
 107
 108                 if (locked)
 109                 {
 110                         screen_lock_fd = Posix.open("/dev/input/event1", Posix.O_RDWR | Posix.O_NONBLOCK);
 111                         if (screen_lock_fd < 0)
 112                         {
 113                                 zavai.log.error("Cannot open /dev/input/event1");
 114                                 return;
 115                         }
 116
 117                         int EVIOCGRAB = 0x40044590;
 118                         if (Posix.ioctl(screen_lock_fd, EVIOCGRAB, locked ? 1 : 0) != 0)
 119                         {
 120                                 zavai.log.error("Cannot EVIOCGRAB /dev/input/event1");
 121                                 Posix.close(screen_lock_fd);
 122                                 return;
 123                         }
 124                 } else {
 125                         Posix.close(screen_lock_fd);
 126                 }
 127                 screen_locked = locked;
 128                 if (!locked)
 129                         backlight.wiggle();
 130
 131                 screen_lock_changed(locked);
 132         }
 133
 134         private bool on_power_button_timeout()
 135         {
 136                 last_down.tv_sec = 0;
 137                 last_down.tv_usec = 0;
 138                 power_long_press();
 139                 // Do not reschedule
 140                 return false;
 141         }
 142
 143         private void on_power_button(Posix.timeval* t, bool pressed)
 144         {
 145                 bool short_press = false;
 146                 bool long_press = false;
 147
 148                 if (pressed)
 149                 {
 150                         if (last_down.tv_sec == 0)
 151                         {
 152                                 last_down = *t;
 153                                 button_press_timeout = Timeout.add(1000, on_power_button_timeout);
 154                         }
 155                         else
 156                         {
 157                                 long diff = timediff(t, &last_down);
 158                                 long_press = diff >= 1000000;
 159                         }
 160                 } else {
 161                         if (last_down.tv_sec == 0)
 162                         {
 163                                 // Ignore: release has been simulated with the timeout
 164                         } else {
 165                                 if (button_press_timeout != 0)
 166                                 {
 167                                         // Cancel the timeout
 168                                         Source.remove(button_press_timeout);
 169                                         button_press_timeout = 0;
 170                                 }
 171                                 long diff = timediff(t, &last_down);
 172                                 if (diff >= 1000000)
 173                                         long_press = true;
 174                                 else
 175                                         short_press = true;
 176
 177                                 last_down.tv_sec = 0;
 178                                 last_down.tv_usec = 0;
 179                         }
 180                 }
 181
 182                 if (long_press) power_long_press();
 183                 if (short_press) power_short_press();
 184         }
 185
 186         private void on_power_short_press()
 187         {
 188                 if (screen_locked)
 189                         // Short press: turn on backlight for a bit
 190                         backlight.wiggle();
 191                 else
 192                         // Short press: toggle power menu
 193                         power_menu.toggle();
 194         }
 195
 196         private void on_power_long_press()
 197         {
 198                 if (screen_locked)
 199                         // Long press: unlock
 200                         set_screen_lock(false);
 201                 else
 202                         // Long press: lock screen
 203                         set_screen_lock(true);
 204         }
 205 }
 206
 207 public class BatteryIcon : Gtk.StatusIcon
 208 {
 209         public dynamic DBus.Object battery;
 210         protected string last_status;
 211         protected int last_capacity;
 212
 213         public BatteryIcon()
 214         {
 215                 battery = zavai.registry.sbus.get_object(
 216                         "org.freesmartphone.odeviced",
 217                         "/org/freesmartphone/Device/PowerSupply/battery",
 218                         "org.freesmartphone.Device.PowerSupply");
 219
 220                 // activate += on_activate;
 221
 222                 battery.PowerStatus += on_power_status;
 223                 battery.Capacity += on_capacity;
 224
 225                 last_status = battery.GetPowerStatus();
 226                 last_capacity = battery.GetCapacity();
 227
 228                 update_icon();
 229         }
 230
 231         private void on_power_status(dynamic DBus.Object bat, string status)
 232         {
 233                 zavai.log.info("New battery status: " + status);
 234                 last_status = status;
 235                 update_icon();
 236         }
 237
 238         private void on_capacity(dynamic DBus.Object bat, int val)
 239         {
 240 stderr.printf("NEW CAPACITY: %d\n", val);
 241                 last_capacity = val;
 242                 update_icon();
 243         }
 244
 245         /*
 246         private void on_activate()
 247         {
 248         }
 249         */
 250
 251         protected void update_icon()
 252         {
 253                 string name = zavai.config.icondir + "/battery/";
 254
 255                 if (last_status == "charging")
 256                         name += "%02d0_charging_500.png".printf(last_capacity/10);
 257                 else
 258                         name += "%02d0.png".printf(last_capacity/10);
 259
 260 stderr.printf("Loading icon from %s\n", name);
 261
 262                 set_from_file(name);
 263         }
 264 }
 265
 266 public class ScreenLockButton : Gtk.Button
 267 {
 268         public ScreenLockButton()
 269         {
 270                 label = "Lock screen";
 271                 clicked += on_clicked;
 272                 set_size_request(0, zavai.config.min_button_height);
 273         }
 274
 275         public void on_clicked()
 276         {
 277                 zavai.log.info("Locking screen");
 278                 power.set_screen_lock(true);
 279                 power_menu.hide_menu();
 280         }
 281 }
 282
 283 public class SuspendButton : Gtk.Button
 284 {
 285         public SuspendButton()
 286         {
 287                 label = "Suspend";
 288                 clicked += on_clicked;
 289                 set_size_request(0, zavai.config.min_button_height);
 290         }
 291
 292         public void on_clicked()
 293         {
 294                 zavai.log.info("Suspending the phone via FSO");
 295                 power.do_suspend();
 296                 power_menu.hide_menu();
 297         }
 298 }
 299
 300 public class ShutdownButton : Gtk.Button
 301 {
 302         public ShutdownButton()
 303         {
 304                 label = "Shut down";
 305                 clicked += on_clicked;
 306                 set_size_request(0, zavai.config.min_button_height);
 307         }
 308
 309         public void on_clicked()
 310         {
 311                 zavai.log.info("Shutting down the phone via FSO");
 312                 power.do_shutdown();
 313                 power_menu.hide_menu();
 314         }
 315 }
 316
 317 public class RebootButton : Gtk.Button
 318 {
 319         public RebootButton()
 320         {
 321                 label = "Reboot";
 322                 clicked += on_clicked;
 323                 set_size_request(0, zavai.config.min_button_height);
 324         }
 325
 326         public void on_clicked()
 327         {
 328                 zavai.log.info("Rebooting the phone via FSO");
 329                 power.do_reboot();
 330                 power_menu.hide_menu();
 331         }
 332 }
 333
 334 // For a list of dbus services, look in /etc/dbus-1/system.d/
 335 public class Backlight: zavai.Service
 336 {
 337         public dynamic DBus.Object usage;
 338
 339         public Backlight()
 340         {
 341                 name = "backlight";
 342
 343                 usage = zavai.registry.sbus.get_object(
 344                         "org.freesmartphone.ousaged",
 345                         "/org/freesmartphone/Usage",
 346                         "org.freesmartphone.Usage");
 347         }
 348
 349         // Turn the backlight and then let it fade off
 350         public void wiggle()
 351         {
 352                 // There must be a better method
 353                 try {
 354                         usage.RequestResource("Display");
 355                         usage.ReleaseResource("Display");
 356                 } catch (Error e) {
 357                         zavai.log.error("Requesting/releasing resource Display: " + e.message);
 358                 }
 359         }
 360
 361         /// Request GPS resource
 362         public override void start()
 363         {
 364                 if (started) return;
 365                 try {
 366                         usage.RequestResource("Display");
 367                         zavai.log.info("Acquired display");
 368                         base.start();
 369                 } catch (GLib.Error e) {
 370                         zavai.log.error(e.message);
 371                 }
 372                 base.start();
 373         }
 374
 375         // Release usage of GPS
 376         public override void stop()
 377         {
 378                 if (!started) return;
 379                 try {
 380                         usage.ReleaseResource("Display");
 381                         zavai.log.info("Released display");
 382                         base.stop();
 383                 } catch (GLib.Error e) {
 384                         zavai.log.error(e.message);
 385                 }
 386                 base.stop();
 387         }
 388 }
 389
 390 public class PowerMenu : zavai.Resource, Gtk.Window
 391 {
 392         protected Gtk.VBox vbox;
 393         protected ScreenLockButton act_screen_lock;
 394         protected SuspendButton act_suspend;
 395         protected ShutdownButton act_shutdown;
 396         protected RebootButton act_reboot;
 397         protected ServiceRequestLink act_backlight_on;
 398         protected bool shown;
 399
 400         public PowerMenu()
 401         {
 402                 type = Gtk.WindowType.TOPLEVEL;
 403                 title = "Power Menu";
 404                 shown = false;
 405                 destroy_with_parent = true;
 406                 set_transient_for(zavai.app);
 407                 set_modal(true);
 408                 set_position(Gtk.WindowPosition.CENTER_ON_PARENT);
 409                 set_size_request(300, 500);
 410
 411                 vbox = new Gtk.VBox(false, 0);
 412                 add(vbox);
 413
 414                 //destroy += Gtk.main_quit;
 415                 //set_events(get_events() | Gdk.EventMask.VISIBILITY_NOTIFY_MASK);
 416                 //visibility_notify_event += on_visibility;
 417                 set_skip_pager_hint(true);
 418                 set_skip_taskbar_hint(true);
 419                 set_type_hint(Gdk.WindowTypeHint.POPUP_MENU);
 420
 421                 act_screen_lock = new ScreenLockButton();
 422                 vbox.pack_start(act_screen_lock, false, false, 0);
 423
 424                 act_suspend = new SuspendButton();
 425                 vbox.pack_start(act_suspend, false, false, 0);
 426
 427                 act_shutdown = new ShutdownButton();
 428                 vbox.pack_start(act_shutdown, false, false, 0);
 429
 430                 act_reboot = new RebootButton();
 431                 vbox.pack_start(act_reboot, false, false, 0);
 432
 433                 act_backlight_on = new ServiceRequestLink("backlight", "Keep backlight on", "Let backlight fade");
 434                 act_backlight_on.toggled += (src) => { this.hide_menu(); };
 435                 vbox.pack_start(act_backlight_on, false, false, 0);
 436
 437                 //vbox.show_all();
 438         }
 439
 440         public void toggle()
 441         {
 442                 if (!shown)
 443                 {
 444                         show_all();
 445                         show();
 446                         visible = true;
 447                         present();
 448                         shown = true;
 449                 } else {
 450                         // TODO: do more in case it is visible but has no visibility (is covered by others)
 451                         visible = !visible;
 452                         if (visible)
 453                                 present();
 454                 }
 455         }
 456
 457         public void hide_menu()
 458         {
 459                 visible = false;
 460         }
 461
 462         public void shutdown() {}
 463 }
 464
 465 /*
 466 public class TogglePowerMenu : Gtk.Button
 467 {
 468         public TogglePowerMenu()
 469         {
 470                 label = "Toggle power menu";
 471                 clicked += on_clicked;
 472                 set_size_request(0, zavai.config.min_button_height);
 473         }
 474
 475         public void on_clicked()
 476         {
 477                 zavai.log.info("Toggling power menu");
 478                 power_menu.toggle();
 479         }
 480 }
 481 */
 482
 483 Power power;
 484 PowerMenu power_menu;
 485 BatteryIcon battery_icon;
 486 Backlight backlight;
 487 //TogglePowerMenu tpm;
 488
 489 public void init()
 490 {
 491         power = new Power();
 492         backlight = new Backlight();
 493         zavai.registry.register_service(backlight);
 494
 495         battery_icon = new BatteryIcon();
 496         battery_icon.set_visible(true);
 497
 498         power_menu = new PowerMenu();
 499         zavai.registry.register_resource("powermenu", power_menu);
 500
 501     //zavai.registry.getmenu("menu.main").add_applet("menu.power");
 502         //tpm = new TogglePowerMenu();
 503     //zavai.registry.getmenu("menu.main").add_widget(tpm);
 504
 505     /*
 506         raise_icon = new RaiseIcon();
 507         raise_icon.set_visible(true);
 508
 509         close_or_back = new CloseOrBack();
 510         close_or_back.set_visible(true);
 511
 512         window_list = new WindowList("Current apps");
 513         zavai.registry.register_applet("wm.list", window_list);
 514         zavai.registry.getmenu("menu.main").add_applet("wm.list");
 515
 516         try {
 517                 launcher = new Launcher("Run program");
 518         } catch (Error e) {
 519                 zavai.log.error("Not running launcher: " + e.message);
 520                 launcher = null;
 521         }
 522
 523         if (launcher != null)
 524         {
 525                 zavai.registry.register_applet("wm.launcher", launcher);
 526                 zavai.registry.getmenu("menu.main").add_applet("wm.launcher");
 527         }
 528     */
 529 }
 530
 531 }
 532 }
 533 }