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