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         private Posix.timeval last_short_press;
  42
  43         private bool hide_after_closing_power_menu;
  44
  45         public signal void screen_lock_changed(bool state);
  46
  47         public signal void power_short_press(Posix.timeval* t);
  48         public signal void power_long_press();
  49         private uint button_press_timeout;
  50
  51         public Power()
  52         {
  53                 screen_locked = false;
  54                 screen_lock_fd = -1;
  55                 hide_after_closing_power_menu = false;
  56                 last_down.tv_sec = 0;
  57                 last_down.tv_usec = 0;
  58                 last_short_press.tv_sec = 0;
  59                 last_short_press.tv_usec = 0;
  60                 button_press_timeout = 0;
  61
  62                 usage = zavai.registry.sbus.get_object(
  63                         "org.freesmartphone.ousaged",
  64                         "/org/freesmartphone/Usage",
  65                         "org.freesmartphone.Usage");
  66
  67                 zavai.input.power_button.power_button += on_power_button;
  68                 zavai.input.power_button.request("zavai.ui.powerbutton.power");
  69
  70                 power_short_press += on_power_short_press;
  71                 power_long_press += on_power_long_press;
  72         }
  73
  74         public void shutdown()
  75         {
  76                 zavai.input.power_button.release("zavai.ui.powerbutton.power");
  77         }
  78
  79         public void do_suspend()
  80         {
  81                 try {
  82                         usage.Suspend();
  83                 } catch (Error e) {
  84                         zavai.log.error("Suspending phone: " + e.message);
  85                 }
  86         }
  87         public void do_shutdown()
  88         {
  89                 try {
  90                         //usage.Shutdown();
  91                         zavai.app.run_script("shutdown -h now");
  92                 } catch (Error e) {
  93                         zavai.log.error("Shutting down phone: " + e.message);
  94                 }
  95         }
  96         public void do_reboot()
  97         {
  98                 try {
  99                         //usage.Reboot();
 100                         zavai.app.run_script("shutdown -r now");
 101                 } catch (Error e) {
 102                         zavai.log.error("Rebooting phone: " + e.message);
 103                 }
 104         }
 105
 106         public void set_screen_lock(bool locked)
 107         {
 108                 if (locked && screen_locked)
 109                         return;
 110                 if (!locked && !screen_locked)
 111                         return;
 112
 113                 if (locked)
 114                 {
 115                         screen_lock_fd = Posix.open("/dev/input/event1", Posix.O_RDWR | Posix.O_NONBLOCK);
 116                         if (screen_lock_fd < 0)
 117                         {
 118                                 zavai.log.error("Cannot open /dev/input/event1");
 119                                 return;
 120                         }
 121
 122                         // FIXME: X won't see events, but it's still generating interrupts,
 123                         // isn't it?
 124                         int EVIOCGRAB = 0x40044590;
 125                         if (Posix.ioctl(screen_lock_fd, EVIOCGRAB, locked ? 1 : 0) != 0)
 126                         {
 127                                 zavai.log.error("Cannot EVIOCGRAB /dev/input/event1");
 128                                 Posix.close(screen_lock_fd);
 129                                 return;
 130                         }
 131
 132                         backlight.lock_screen();
 133                 } else {
 134                         Posix.close(screen_lock_fd);
 135                         backlight.unlock_screen();
 136                 }
 137                 screen_locked = locked;
 138                 if (!locked)
 139                         backlight.wiggle();
 140
 141                 screen_lock_changed(locked);
 142         }
 143
 144         private bool on_power_button_timeout()
 145         {
 146                 last_down.tv_sec = 0;
 147                 last_down.tv_usec = 0;
 148                 power_long_press();
 149                 // Do not reschedule
 150                 return false;
 151         }
 152
 153         private void on_power_button(Posix.timeval* t, bool pressed)
 154         {
 155                 bool short_press = false;
 156                 bool long_press = false;
 157
 158                 if (pressed)
 159                 {
 160                         if (last_down.tv_sec == 0)
 161                         {
 162                                 last_down = *t;
 163                                 button_press_timeout = Timeout.add(1000, on_power_button_timeout);
 164                         }
 165                         else
 166                         {
 167                                 long diff = timediff(t, &last_down);
 168                                 long_press = diff >= 1000000;
 169                         }
 170                 } else {
 171                         if (last_down.tv_sec == 0)
 172                         {
 173                                 // Ignore: release has been simulated with the timeout
 174                         } else {
 175                                 if (button_press_timeout != 0)
 176                                 {
 177                                         // Cancel the timeout
 178                                         Source.remove(button_press_timeout);
 179                                         button_press_timeout = 0;
 180                                 }
 181                                 long diff = timediff(t, &last_down);
 182                                 if (diff >= 1000000)
 183                                         long_press = true;
 184                                 else
 185                                         short_press = true;
 186
 187                                 last_down.tv_sec = 0;
 188                                 last_down.tv_usec = 0;
 189                         }
 190                 }
 191
 192                 if (long_press)
 193                 {
 194                         power_long_press();
 195                         last_short_press.tv_sec = 0;
 196                         last_short_press.tv_usec = 0;
 197                 }
 198                 if (short_press) power_short_press(t);
 199         }
 200
 201         private void on_power_short_press(Posix.timeval* t)
 202         {
 203                 long diff = timediff(t, &last_short_press);
 204                 bool combo = screen_locked && (diff <= 5000000);
 205                 last_short_press = *t;
 206
 207                 if (screen_locked)
 208                 {
 209                         // Short press: turn on backlight for a bit
 210                         backlight.wiggle();
 211                         if (combo)
 212                         {
 213                                 app.back_to_main();
 214                                 app.toggle_visibility();
 215                         }
 216                 }
 217                 else
 218                         // Short press: toggle power menu
 219                         power_menu.toggle();
 220         }
 221
 222         private void on_power_long_press()
 223         {
 224                 if (screen_locked)
 225                         // Long press: unlock
 226                         set_screen_lock(false);
 227                 else
 228                         // Long press: lock screen
 229                         set_screen_lock(true);
 230         }
 231 }
 232
 233 public class BatteryIcon : Gtk.StatusIcon
 234 {
 235         public dynamic DBus.Object battery;
 236         protected string last_status;
 237         protected int last_capacity;
 238
 239         public BatteryIcon()
 240         {
 241                 battery = zavai.registry.sbus.get_object(
 242                         "org.freesmartphone.odeviced",
 243                         "/org/freesmartphone/Device/PowerSupply/battery",
 244                         "org.freesmartphone.Device.PowerSupply");
 245
 246                 // activate += on_activate;
 247
 248                 battery.PowerStatus += on_power_status;
 249                 battery.Capacity += on_capacity;
 250
 251                 last_status = battery.GetPowerStatus();
 252                 last_capacity = battery.GetCapacity();
 253
 254                 update_icon();
 255         }
 256
 257         private void on_power_status(dynamic DBus.Object bat, string status)
 258         {
 259                 zavai.log.info("New battery status: " + status);
 260                 last_status = status;
 261                 update_icon();
 262         }
 263
 264         private void on_capacity(dynamic DBus.Object bat, int val)
 265         {
 266 stderr.printf("NEW CAPACITY: %d\n", val);
 267                 last_capacity = val;
 268                 update_icon();
 269         }
 270
 271         /*
 272         private void on_activate()
 273         {
 274         }
 275         */
 276
 277         protected void update_icon()
 278         {
 279                 string name = zavai.config.icondir + "/battery/";
 280
 281                 if (last_status == "charging")
 282                         name += "%02d0_charging_500.png".printf(last_capacity/10);
 283                 else
 284                         name += "%02d0.png".printf(last_capacity/10);
 285
 286 stderr.printf("Loading icon from %s\n", name);
 287
 288                 set_from_file(name);
 289         }
 290 }
 291
 292 public class ScreenLockButton : Gtk.Button
 293 {
 294         public ScreenLockButton()
 295         {
 296                 label = "Lock screen";
 297                 clicked += on_clicked;
 298                 set_size_request(0, zavai.config.min_button_height);
 299         }
 300
 301         public void on_clicked()
 302         {
 303                 zavai.log.info("Locking screen");
 304                 power.set_screen_lock(true);
 305                 power_menu.hide_menu();
 306         }
 307 }
 308
 309 public class SuspendButton : Gtk.Button
 310 {
 311         public SuspendButton()
 312         {
 313                 label = "Suspend";
 314                 clicked += on_clicked;
 315                 set_size_request(0, zavai.config.min_button_height);
 316         }
 317
 318         public void on_clicked()
 319         {
 320                 zavai.log.info("Suspending the phone via FSO");
 321                 power.do_suspend();
 322                 power_menu.hide_menu();
 323         }
 324 }
 325
 326 public class ShutdownButton : Gtk.Button
 327 {
 328         public ShutdownButton()
 329         {
 330                 label = "Shut down";
 331                 clicked += on_clicked;
 332                 set_size_request(0, zavai.config.min_button_height);
 333         }
 334
 335         public void on_clicked()
 336         {
 337                 zavai.log.info("Shutting down the phone via FSO");
 338                 power.do_shutdown();
 339                 power_menu.hide_menu();
 340         }
 341 }
 342
 343 public class RebootButton : Gtk.Button
 344 {
 345         public RebootButton()
 346         {
 347                 label = "Reboot";
 348                 clicked += on_clicked;
 349                 set_size_request(0, zavai.config.min_button_height);
 350         }
 351
 352         public void on_clicked()
 353         {
 354                 zavai.log.info("Rebooting the phone via FSO");
 355                 power.do_reboot();
 356                 power_menu.hide_menu();
 357         }
 358 }
 359
 360 // For a list of dbus services, look in /etc/dbus-1/system.d/
 361 public class Backlight: zavai.Service
 362 {
 363         public dynamic DBus.Object usage;
 364         public dynamic DBus.Object display;
 365
 366         public Backlight()
 367         {
 368                 name = "backlight";
 369
 370                 usage = zavai.registry.sbus.get_object(
 371                         "org.freesmartphone.ousaged",
 372                         "/org/freesmartphone/Usage",
 373                         "org.freesmartphone.Usage");
 374
 375                 display = zavai.registry.sbus.get_object(
 376                         "org.freesmartphone.odeviced",
 377                         "/org/freesmartphone/Device/Display/0",
 378                         "org.freesmartphone.Device.Display");
 379         }
 380
 381         // Turn the backlight and then let it fade off
 382         public void wiggle()
 383         {
 384                 // There must be a better method
 385                 try {
 386                         display.SetBacklightPower(true);
 387                         //usage.SetResourcePolicy("Display", "auto");
 388                         usage.RequestResource("Display");
 389                         usage.ReleaseResource("Display");
 390                 } catch (Error e) {
 391                         zavai.log.error("Requesting/releasing resource Display: " + e.message);
 392                 }
 393         }
 394
 395         public void lock_screen()
 396         {
 397                 if (!started)
 398                 {
 399                         try {
 400                                 display.SetBacklightPower(false);
 401                                 zavai.app.run_script(zavai.config.xset_dpms_short_wait);
 402                                 /*
 403                                 string policy = usage.GetResourcePolicy("Display");
 404                                 if (policy == "auto")
 405                                 {
 406                                         usage.SetResourcePolicy("Display", "disabled");
 407                                 }
 408                                 */
 409                         } catch (GLib.Error e) {
 410                                 zavai.log.error(e.message);
 411                         }
 412                 }
 413         }
 414
 415         public void unlock_screen()
 416         {
 417                 try {
 418                         display.SetBacklightPower(true);
 419                         zavai.app.run_script(zavai.config.xset_dpms_long_wait);
 420                         //usage.SetResourcePolicy("Display", "auto");
 421                 } catch (GLib.Error e) {
 422                         zavai.log.error(e.message);
 423                 }
 424         }
 425
 426
 427         /// Request GPS resource
 428         public override void start()
 429         {
 430                 if (started) return;
 431                 try {
 432                         usage.RequestResource("Display");
 433                         zavai.app.run_script(zavai.config.xset_dpms_always_on);
 434                         zavai.log.info("Acquired display");
 435                         base.start();
 436                 } catch (GLib.Error e) {
 437                         zavai.log.error(e.message);
 438                 }
 439                 base.start();
 440         }
 441
 442         // Release usage of GPS
 443         public override void stop()
 444         {
 445                 if (!started) return;
 446                 try {
 447                         usage.ReleaseResource("Display");
 448                         zavai.app.run_script(zavai.config.xset_dpms_long_wait);
 449                         zavai.log.info("Released display");
 450                         base.stop();
 451                 } catch (GLib.Error e) {
 452                         zavai.log.error(e.message);
 453                 }
 454                 base.stop();
 455         }
 456 }
 457
 458 public class PowerMenu : zavai.Resource, Gtk.Window
 459 {
 460         protected Gtk.VBox vbox;
 461         protected ScreenLockButton act_screen_lock;
 462         protected SuspendButton act_suspend;
 463         protected ShutdownButton act_shutdown;
 464         protected RebootButton act_reboot;
 465         protected ServiceRequestLink act_backlight_on;
 466         protected bool shown;
 467
 468         public PowerMenu()
 469         {
 470                 type = Gtk.WindowType.TOPLEVEL;
 471                 title = "Power Menu";
 472                 shown = false;
 473                 destroy_with_parent = true;
 474                 set_transient_for(zavai.app);
 475                 set_modal(true);
 476                 set_position(Gtk.WindowPosition.CENTER_ON_PARENT);
 477                 set_size_request(300, 500);
 478
 479                 vbox = new Gtk.VBox(false, 0);
 480                 add(vbox);
 481
 482                 //destroy += Gtk.main_quit;
 483                 //set_events(get_events() | Gdk.EventMask.VISIBILITY_NOTIFY_MASK);
 484                 //visibility_notify_event += on_visibility;
 485                 set_skip_pager_hint(true);
 486                 set_skip_taskbar_hint(true);
 487                 set_type_hint(Gdk.WindowTypeHint.POPUP_MENU);
 488
 489                 act_screen_lock = new ScreenLockButton();
 490                 vbox.pack_start(act_screen_lock, false, false, 0);
 491
 492                 act_suspend = new SuspendButton();
 493                 vbox.pack_start(act_suspend, false, false, 0);
 494
 495                 act_shutdown = new ShutdownButton();
 496                 vbox.pack_start(act_shutdown, false, false, 0);
 497
 498                 act_reboot = new RebootButton();
 499                 vbox.pack_start(act_reboot, false, false, 0);
 500
 501                 act_backlight_on = new ServiceRequestLink("backlight", "Keep backlight on", "Let backlight fade");
 502                 act_backlight_on.toggled += (src) => { this.hide_menu(); };
 503                 vbox.pack_start(act_backlight_on, false, false, 0);
 504
 505                 //vbox.show_all();
 506         }
 507
 508         public void toggle()
 509         {
 510                 if (!shown)
 511                 {
 512                         show_all();
 513                         show();
 514                         visible = true;
 515                         present();
 516                         shown = true;
 517                 } else {
 518                         // TODO: do more in case it is visible but has no visibility (is covered by others)
 519                         visible = !visible;
 520                         if (visible)
 521                                 present();
 522                 }
 523         }
 524
 525         public void hide_menu()
 526         {
 527                 visible = false;
 528         }
 529
 530         public void shutdown() {}
 531 }
 532
 533 /*
 534 public class TogglePowerMenu : Gtk.Button
 535 {
 536         public TogglePowerMenu()
 537         {
 538                 label = "Toggle power menu";
 539                 clicked += on_clicked;
 540                 set_size_request(0, zavai.config.min_button_height);
 541         }
 542
 543         public void on_clicked()
 544         {
 545                 zavai.log.info("Toggling power menu");
 546                 power_menu.toggle();
 547         }
 548 }
 549 */
 550
 551 Power power;
 552 PowerMenu power_menu;
 553 BatteryIcon battery_icon;
 554 Backlight backlight;
 555 //TogglePowerMenu tpm;
 556
 557 public void init()
 558 {
 559         power = new Power();
 560         backlight = new Backlight();
 561         zavai.registry.register_service(backlight);
 562
 563         battery_icon = new BatteryIcon();
 564         battery_icon.set_visible(true);
 565
 566         power_menu = new PowerMenu();
 567         zavai.registry.register_resource("powermenu", power_menu);
 568
 569     //zavai.registry.getmenu("menu.main").add_applet("menu.power");
 570         //tpm = new TogglePowerMenu();
 571     //zavai.registry.getmenu("menu.main").add_widget(tpm);
 572
 573     /*
 574         raise_icon = new RaiseIcon();
 575         raise_icon.set_visible(true);
 576
 577         close_or_back = new CloseOrBack();
 578         close_or_back.set_visible(true);
 579
 580         window_list = new WindowList("Current apps");
 581         zavai.registry.register_applet("wm.list", window_list);
 582         zavai.registry.getmenu("menu.main").add_applet("wm.list");
 583
 584         try {
 585                 launcher = new Launcher("Run program");
 586         } catch (Error e) {
 587                 zavai.log.error("Not running launcher: " + e.message);
 588                 launcher = null;
 589         }
 590
 591         if (launcher != null)
 592         {
 593                 zavai.registry.register_applet("wm.launcher", launcher);
 594                 zavai.registry.getmenu("menu.main").add_applet("wm.launcher");
 595         }
 596     */
 597 }
 598
 599 }
 600 }
 601 }