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() { usage.Suspend(); }
  77         public void do_shutdown() { usage.Shutdown(); }
  78         public void do_reboot() { usage.Reboot(); }
  79
  80         public void set_screen_lock(bool locked)
  81         {
  82                 if (locked && screen_locked)
  83                         return;
  84                 if (!locked && !screen_locked)
  85                         return;
  86
  87                 if (locked)
  88                 {
  89                         screen_lock_fd = Posix.open("/dev/input/event1", Posix.O_RDWR | Posix.O_NONBLOCK);
  90                         if (screen_lock_fd < 0)
  91                         {
  92                                 zavai.log.error("Cannot open /dev/input/event1");
  93                                 return;
  94                         }
  95
  96                         int EVIOCGRAB = 0x40044590;
  97                         if (Posix.ioctl(screen_lock_fd, EVIOCGRAB, locked ? 1 : 0) != 0)
  98                         {
  99                                 zavai.log.error("Cannot EVIOCGRAB /dev/input/event1");
 100                                 Posix.close(screen_lock_fd);
 101                                 return;
 102                         }
 103                 } else {
 104                         Posix.close(screen_lock_fd);
 105                 }
 106                 screen_locked = locked;
 107                 if (!locked)
 108                         backlight.wiggle();
 109
 110                 screen_lock_changed(locked);
 111         }
 112
 113         private bool on_power_button_timeout()
 114         {
 115                 last_down.tv_sec = 0;
 116                 last_down.tv_usec = 0;
 117                 power_long_press();
 118                 // Do not reschedule
 119                 return false;
 120         }
 121
 122         private void on_power_button(Posix.timeval* t, bool pressed)
 123         {
 124                 bool short_press = false;
 125                 bool long_press = false;
 126
 127 stderr.printf("EVENT %d\n", (int)pressed);
 128
 129                 if (pressed)
 130                 {
 131                         if (last_down.tv_sec == 0)
 132                         {
 133 stderr.printf("  FIRST PRESSED\n");
 134                                 last_down = *t;
 135                                 button_press_timeout = Timeout.add(1500, on_power_button_timeout);
 136                         }
 137                         else
 138                         {
 139                                 long diff = timediff(t, &last_down);
 140 stderr.printf("  PRESSED FOR %ld\n", diff);
 141                                 long_press = diff >= 1500000;
 142                         }
 143                 } else {
 144                         if (last_down.tv_sec == 0)
 145                         {
 146                                 // Ignore: release has been simulated with the timeout
 147                         } else {
 148                                 if (button_press_timeout != 0)
 149                                 {
 150                                         // Cancel the timeout
 151                                         Source.remove(button_press_timeout);
 152                                         button_press_timeout = 0;
 153                                 }
 154                                 long diff = timediff(t, &last_down);
 155 stderr.printf("  RELEASED AFTER %ld\n", diff);
 156                                 if (diff >= 1500000)
 157                                         long_press = true;
 158                                 else
 159                                         short_press = true;
 160
 161                                 last_down.tv_sec = 0;
 162                                 last_down.tv_usec = 0;
 163                         }
 164                 }
 165
 166 stderr.printf("  LP %d SP %d\n", (int)long_press, (int)short_press);
 167
 168                 if (long_press) power_long_press();
 169                 if (short_press) power_short_press();
 170         }
 171
 172         private void on_power_short_press()
 173         {
 174                 if (screen_locked)
 175                         // Short press: turn on backlight for a bit
 176                         backlight.wiggle();
 177                 else
 178                         // Short press: toggle power menu
 179                         power_menu.toggle();
 180         }
 181
 182         private void on_power_long_press()
 183         {
 184                 if (screen_locked)
 185                         // Long press: unlock
 186                         set_screen_lock(false);
 187                 else
 188                         // Long press: lock screen
 189                         set_screen_lock(true);
 190         }
 191 }
 192
 193 public class BatteryIcon : Gtk.StatusIcon
 194 {
 195         public dynamic DBus.Object battery;
 196         protected string last_status;
 197         protected int last_capacity;
 198
 199         public BatteryIcon()
 200         {
 201                 battery = zavai.registry.sbus.get_object(
 202                         "org.freesmartphone.odeviced",
 203                         "/org/freesmartphone/Device/PowerSupply/battery",
 204                         "org.freesmartphone.Device.PowerSupply");
 205
 206                 // activate += on_activate;
 207
 208                 battery.PowerStatus += on_power_status;
 209                 battery.Capacity += on_capacity;
 210
 211                 last_status = battery.GetPowerStatus();
 212                 last_capacity = battery.GetCapacity();
 213
 214                 update_icon();
 215         }
 216
 217         private void on_power_status(dynamic DBus.Object bat, string status)
 218         {
 219                 zavai.log.info("New battery status: " + status);
 220                 last_status = status;
 221                 update_icon();
 222         }
 223
 224         private void on_capacity(dynamic DBus.Object bat, int val)
 225         {
 226 stderr.printf("NEW CAPACITY: %d\n", val);
 227                 last_capacity = val;
 228                 update_icon();
 229         }
 230
 231         /*
 232         private void on_activate()
 233         {
 234         }
 235         */
 236
 237         protected void update_icon()
 238         {
 239                 string name = zavai.config.icondir + "/battery/";
 240
 241                 if (last_status == "charging")
 242                         name += "%02d0_charging_500.png".printf(last_capacity/10);
 243                 else
 244                         name += "%02d0.png".printf(last_capacity/10);
 245
 246 stderr.printf("Loading icon from %s\n", name);
 247
 248                 set_from_file(name);
 249         }
 250 }
 251
 252 public class ScreenLockButton : Gtk.Button
 253 {
 254         public ScreenLockButton()
 255         {
 256                 label = "Lock screen";
 257                 clicked += on_clicked;
 258                 set_size_request(0, zavai.config.min_button_height);
 259         }
 260
 261         public void on_clicked()
 262         {
 263                 zavai.log.info("Locking screen");
 264                 power.set_screen_lock(true);
 265                 power_menu.hide();
 266         }
 267 }
 268
 269 public class SuspendButton : Gtk.Button
 270 {
 271         public SuspendButton()
 272         {
 273                 label = "Suspend";
 274                 clicked += on_clicked;
 275                 set_size_request(0, zavai.config.min_button_height);
 276         }
 277
 278         public void on_clicked()
 279         {
 280                 zavai.log.info("Suspending the phone via FSO");
 281                 power.do_suspend();
 282                 power_menu.hide();
 283         }
 284 }
 285
 286 public class ShutdownButton : Gtk.Button
 287 {
 288         public ShutdownButton()
 289         {
 290                 label = "Shut down";
 291                 clicked += on_clicked;
 292                 set_size_request(0, zavai.config.min_button_height);
 293         }
 294
 295         public void on_clicked()
 296         {
 297                 zavai.log.info("Shutting down the phone via FSO");
 298                 power.do_shutdown();
 299                 power_menu.hide();
 300         }
 301 }
 302
 303 public class RebootButton : Gtk.Button
 304 {
 305         public RebootButton()
 306         {
 307                 label = "Reboot";
 308                 clicked += on_clicked;
 309                 set_size_request(0, zavai.config.min_button_height);
 310         }
 311
 312         public void on_clicked()
 313         {
 314                 zavai.log.info("Rebooting the phone via FSO");
 315                 power.do_reboot();
 316                 power_menu.hide();
 317         }
 318 }
 319
 320 // For a list of dbus services, look in /etc/dbus-1/system.d/
 321 public class Backlight: zavai.Service
 322 {
 323         public dynamic DBus.Object usage;
 324
 325         public Backlight()
 326         {
 327                 name = "backlight";
 328
 329                 usage = zavai.registry.sbus.get_object(
 330                         "org.freesmartphone.ousaged",
 331                         "/org/freesmartphone/Usage",
 332                         "org.freesmartphone.Usage");
 333         }
 334
 335         // Turn the backlight and then let it fade off
 336         public void wiggle()
 337         {
 338                 // There must be a better method
 339                 usage.RequestResource("Display");
 340                 usage.ReleaseResource("Display");
 341         }
 342
 343         /// Request GPS resource
 344         public override void start()
 345         {
 346                 if (started) return;
 347                 try {
 348                         usage.RequestResource("Display");
 349                         zavai.log.info("Acquired display");
 350                         base.start();
 351                 } catch (GLib.Error e) {
 352                         zavai.log.error(e.message);
 353                 }
 354                 base.start();
 355         }
 356
 357         // Release usage of GPS
 358         public override void stop()
 359         {
 360                 if (!started) return;
 361                 try {
 362                         usage.ReleaseResource("Display");
 363                         zavai.log.info("Released display");
 364                         base.stop();
 365                 } catch (GLib.Error e) {
 366                         zavai.log.error(e.message);
 367                 }
 368                 base.stop();
 369         }
 370 }
 371
 372 public class PowerMenu : zavai.Resource, Gtk.Window
 373 {
 374         protected Gtk.VBox vbox;
 375         protected ScreenLockButton act_screen_lock;
 376         protected SuspendButton act_suspend;
 377         protected ShutdownButton act_shutdown;
 378         protected RebootButton act_reboot;
 379         protected ServiceRequestLink act_backlight_on;
 380         protected bool shown;
 381
 382         public PowerMenu()
 383         {
 384                 type = Gtk.WindowType.TOPLEVEL;
 385                 title = "Power Menu";
 386                 shown = false;
 387                 destroy_with_parent = true;
 388                 set_transient_for(zavai.app);
 389                 set_modal(true);
 390                 set_position(Gtk.WindowPosition.CENTER_ON_PARENT);
 391                 set_size_request(300, 500);
 392
 393                 vbox = new Gtk.VBox(false, 0);
 394                 add(vbox);
 395
 396                 //destroy += Gtk.main_quit;
 397                 //set_events(get_events() | Gdk.EventMask.VISIBILITY_NOTIFY_MASK);
 398                 //visibility_notify_event += on_visibility;
 399                 set_skip_pager_hint(true);
 400                 set_skip_taskbar_hint(true);
 401                 set_type_hint(Gdk.WindowTypeHint.POPUP_MENU);
 402
 403                 act_screen_lock = new ScreenLockButton();
 404                 vbox.pack_start(act_screen_lock, false, false, 0);
 405
 406                 act_suspend = new SuspendButton();
 407                 vbox.pack_start(act_suspend, false, false, 0);
 408
 409                 act_shutdown = new ShutdownButton();
 410                 vbox.pack_start(act_shutdown, false, false, 0);
 411
 412                 act_reboot = new RebootButton();
 413                 vbox.pack_start(act_reboot, false, false, 0);
 414
 415                 act_backlight_on = new ServiceRequestLink("backlight", "Keep backlight on", "Let backlight fade");
 416                 vbox.pack_start(act_backlight_on, false, false, 0);
 417
 418                 //vbox.show_all();
 419         }
 420
 421         public void toggle()
 422         {
 423                 if (!shown)
 424                 {
 425                         show_all();
 426                         show();
 427                         visible = true;
 428                         present();
 429                         shown = true;
 430                 } else {
 431                         // TODO: do more in case it is visible but has no visibility (is covered by others)
 432                         visible = !visible;
 433                         if (visible)
 434                                 present();
 435                 }
 436         }
 437
 438         public void hide()
 439         {
 440                 visible = false;
 441         }
 442
 443         public void shutdown() {}
 444 }
 445
 446 /*
 447 public class TogglePowerMenu : Gtk.Button
 448 {
 449         public TogglePowerMenu()
 450         {
 451                 label = "Toggle power menu";
 452                 clicked += on_clicked;
 453                 set_size_request(0, zavai.config.min_button_height);
 454         }
 455
 456         public void on_clicked()
 457         {
 458                 zavai.log.info("Toggling power menu");
 459                 power_menu.toggle();
 460         }
 461 }
 462 */
 463
 464 Power power;
 465 PowerMenu power_menu;
 466 BatteryIcon battery_icon;
 467 Backlight backlight;
 468 //TogglePowerMenu tpm;
 469
 470 public void init()
 471 {
 472         power = new Power();
 473         backlight = new Backlight();
 474         zavai.registry.register_service(backlight);
 475
 476         battery_icon = new BatteryIcon();
 477         battery_icon.set_visible(true);
 478
 479         power_menu = new PowerMenu();
 480         zavai.registry.register_resource("powermenu", power_menu);
 481
 482     //zavai.registry.getmenu("menu.main").add_applet("menu.power");
 483         //tpm = new TogglePowerMenu();
 484     //zavai.registry.getmenu("menu.main").add_widget(tpm);
 485
 486     /*
 487         raise_icon = new RaiseIcon();
 488         raise_icon.set_visible(true);
 489
 490         close_or_back = new CloseOrBack();
 491         close_or_back.set_visible(true);
 492
 493         window_list = new WindowList("Current apps");
 494         zavai.registry.register_applet("wm.list", window_list);
 495         zavai.registry.getmenu("menu.main").add_applet("wm.list");
 496
 497         try {
 498                 launcher = new Launcher("Run program");
 499         } catch (Error e) {
 500                 zavai.log.error("Not running launcher: " + e.message);
 501                 launcher = null;
 502         }
 503
 504         if (launcher != null)
 505         {
 506                 zavai.registry.register_applet("wm.launcher", launcher);
 507                 zavai.registry.getmenu("menu.main").add_applet("wm.launcher");
 508         }
 509     */
 510 }
 511
 512 }
 513 }
 514 }