Dogcows Code - chaz/tint2/blob - src/tint.c

   1 /**************************************************************************
   2 *
   3 * Tint2 panel
   4 *
   5 * Copyright (C) 2007 Pål Staurland (staura@gmail.com)
   6 * Modified (C) 2008 thierry lorthiois (lorthiois@bbsoft.fr)
   7 *
   8 * This program is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License version 2
  10 * as published by the Free Software Foundation.
  11 *
  12 * This program is distributed in the hope that it will be useful,
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 * GNU General Public License for more details.
  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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  19 **************************************************************************/
  20
  21 #include <sys/stat.h>
  22 #include <unistd.h>
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <stdint.h>
  26 #include <string.h>
  27 #include <X11/Xutil.h>
  28 #include <X11/Xatom.h>
  29 #include <X11/Xlocale.h>
  30 #include <X11/extensions/Xdamage.h>
  31 #include <Imlib2.h>
  32 #include <signal.h>
  33
  34 #include "server.h"
  35 #include "window.h"
  36 #include "config.h"
  37 #include "task.h"
  38 #include "taskbar.h"
  39 #include "systraybar.h"
  40 #include "panel.h"
  41 #include "tooltip.h"
  42 #include "timer.h"
  43
  44 void signal_handler(int sig)
  45 {
  46         // signal handler is light as it should be
  47         signal_pending = sig;
  48 }
  49
  50
  51 void init (int argc, char *argv[])
  52 {
  53         int i;
  54
  55         // read options
  56         for (i = 1; i < argc; ++i) {
  57                 if (!strcmp(argv[i], "-h") || !strcmp(argv[i], "--help"))       {
  58                         printf("Usage: tint2 [-c] <config_file>\n");
  59                         exit(0);
  60                 }
  61                 if (!strcmp(argv[i], "-v") || !strcmp(argv[i], "--version"))    {
  62                         printf("tint2 version 0.8\n");
  63                         exit(0);
  64                 }
  65                 if (!strcmp(argv[i], "-c")) {
  66                         i++;
  67                         if (i < argc)
  68                                 config_path = strdup(argv[i]);
  69                 }
  70                 if (!strcmp(argv[i], "-s"))     {
  71                         i++;
  72                         if (i < argc)
  73                                 snapshot_path = strdup(argv[i]);
  74                 }
  75         }
  76         // Set signal handler
  77         struct sigaction sa = { .sa_handler = signal_handler };
  78         sigaction(SIGUSR1, &sa, 0);
  79         sigaction(SIGINT, &sa, 0);
  80         sigaction(SIGTERM, &sa, 0);
  81         sigaction(SIGHUP, &sa, 0);
  82         signal(SIGCHLD, SIG_IGN);               // don't have to wait() after fork()
  83
  84         // BSD is too stupid to support pselect(), therefore we have to use select and hope that we do not
  85         // end up in a race condition there
  86         // block all signals, such that no race conditions occur before pselect in our main loop
  87 //      sigset_t block_mask;
  88 //      sigaddset(&block_mask, SIGINT);
  89 //      sigaddset(&block_mask, SIGTERM);
  90 //      sigaddset(&block_mask, SIGHUP);
  91 //      sigaddset(&block_mask, SIGUSR1);
  92 //      sigprocmask(SIG_BLOCK, &block_mask, 0);
  93
  94         // set global data
  95         memset(&server, 0, sizeof(Server_global));
  96         memset(&systray, 0, sizeof(Systraybar));
  97 }
  98
  99 void init_X11()
 100 {
 101         server.dsp = XOpenDisplay (NULL);
 102         if (!server.dsp) {
 103                 fprintf(stderr, "tint2 exit : could not open display.\n");
 104                 exit(0);
 105         }
 106         server_init_atoms ();
 107         server.screen = DefaultScreen (server.dsp);
 108         server.root_win = RootWindow(server.dsp, server.screen);
 109         server.desktop = server_get_current_desktop ();
 110         server_init_visual();
 111         XSetErrorHandler ((XErrorHandler) server_catch_error);
 112
 113         imlib_context_set_display (server.dsp);
 114         imlib_context_set_visual (server.visual);
 115         imlib_context_set_colormap (server.colormap);
 116
 117         /* Catch events */
 118         XSelectInput (server.dsp, server.root_win, PropertyChangeMask|StructureNotifyMask);
 119
 120         setlocale (LC_ALL, "");
 121
 122         // load default icon
 123         gchar *path;
 124         const gchar * const *data_dirs;
 125         data_dirs = g_get_system_data_dirs ();
 126         int i;
 127         for (i = 0; data_dirs[i] != NULL; i++)  {
 128                 path = g_build_filename(data_dirs[i], "tint2", "default_icon.png", NULL);
 129                 if (g_file_test (path, G_FILE_TEST_EXISTS))
 130                         default_icon = imlib_load_image(path);
 131                 g_free(path);
 132         }
 133
 134         // get monitor and desktop config
 135         get_monitors();
 136         get_desktops();
 137 }
 138
 139
 140 void cleanup()
 141 {
 142         stop_all_timeouts();
 143         cleanup_systray();
 144         stop_net();
 145         cleanup_panel();
 146         cleanup_tooltip();
 147         cleanup_clock();
 148 #ifdef ENABLE_BATTERY
 149         cleanup_battery();
 150 #endif
 151
 152         if (default_icon) {
 153                 imlib_context_set_image(default_icon);
 154                 imlib_free_image();
 155         }
 156         if (config_path) g_free(config_path);
 157         if (snapshot_path) g_free(snapshot_path);
 158
 159         cleanup_server();
 160         if (server.dsp) XCloseDisplay(server.dsp);
 161 }
 162
 163
 164 void get_snapshot(const char *path)
 165 {
 166         Panel *panel = &panel1[0];
 167
 168         if (panel->temp_pmap) XFreePixmap(server.dsp, panel->temp_pmap);
 169         panel->temp_pmap = XCreatePixmap(server.dsp, server.root_win, panel->area.width, panel->area.height, server.depth);
 170
 171         refresh(&panel->area);
 172
 173         Imlib_Image img = NULL;
 174         imlib_context_set_drawable(panel->temp_pmap);
 175         img = imlib_create_image_from_drawable(0, 0, 0, panel->area.width, panel->area.height, 0);
 176
 177         imlib_context_set_image(img);
 178         imlib_save_image(path);
 179         imlib_free_image();
 180 }
 181
 182
 183 void window_action (Task *tsk, int action)
 184 {
 185         if (!tsk) return;
 186         int desk;
 187         switch (action) {
 188                 case CLOSE:
 189                         set_close (tsk->win);
 190                         break;
 191                 case TOGGLE:
 192                         set_active(tsk->win);
 193                         break;
 194                 case ICONIFY:
 195                         XIconifyWindow (server.dsp, tsk->win, server.screen);
 196                         break;
 197                 case TOGGLE_ICONIFY:
 198                         if (task_active && tsk->win == task_active->win)
 199                                 XIconifyWindow (server.dsp, tsk->win, server.screen);
 200                         else
 201                                 set_active (tsk->win);
 202                         break;
 203                 case SHADE:
 204                         window_toggle_shade (tsk->win);
 205                         break;
 206                 case MAXIMIZE_RESTORE:
 207                         window_maximize_restore (tsk->win);
 208                         break;
 209                 case MAXIMIZE:
 210                         window_maximize_restore (tsk->win);
 211                         break;
 212                 case RESTORE:
 213                         window_maximize_restore (tsk->win);
 214                         break;
 215                 case DESKTOP_LEFT:
 216                         if ( tsk->desktop == 0 ) break;
 217                         desk = tsk->desktop - 1;
 218                         windows_set_desktop(tsk->win, desk);
 219                         if (desk == server.desktop)
 220                                 set_active(tsk->win);
 221                         break;
 222                 case DESKTOP_RIGHT:
 223                         if (tsk->desktop == server.nb_desktop ) break;
 224                         desk = tsk->desktop + 1;
 225                         windows_set_desktop(tsk->win, desk);
 226                         if (desk == server.desktop)
 227                                 set_active(tsk->win);
 228                         break;
 229                 case NEXT_TASK:
 230                         if (task_active) {
 231                                 Task *tsk1;
 232                                 tsk1 = next_task(task_active);
 233                                 set_active(tsk1->win);
 234                         }
 235                         break;
 236                 case PREV_TASK:
 237                         if (task_active) {
 238                                 Task *tsk1;
 239                                 tsk1 = prev_task(task_active);
 240                                 set_active(tsk1->win);
 241                         }
 242         }
 243 }
 244
 245
 246 int tint2_handles_click(Panel* panel, XButtonEvent* e)
 247 {
 248         Task* task = click_task(panel, e->x, e->y);
 249         if (task) {
 250                 if(   (e->button == 1)
 251                          || (e->button == 2 && mouse_middle != 0)
 252                          || (e->button == 3 && mouse_right != 0)
 253                          || (e->button == 4 && mouse_scroll_up != 0)
 254                          || (e->button == 5 && mouse_scroll_down !=0) )
 255                 {
 256                         return 1;
 257                 }
 258                 else
 259                         return 0;
 260         }
 261         // no task clicked --> check if taskbar clicked
 262         Taskbar *tskbar = click_taskbar(panel, e->x, e->y);
 263         if (tskbar && e->button == 1 && panel_mode == MULTI_DESKTOP)
 264                 return 1;
 265         if (click_clock(panel, e->x, e->y)) {
 266                 if ( (e->button == 1 && clock_lclick_command) || (e->button == 3 && clock_rclick_command) )
 267                         return 1;
 268                 else
 269                         return 0;
 270         }
 271         return 0;
 272 }
 273
 274
 275 void forward_click(XEvent* e)
 276 {
 277         // forward the click to the desktop window (thanks conky)
 278         XUngrabPointer(server.dsp, e->xbutton.time);
 279         e->xbutton.window = server.root_win;
 280         // icewm doesn't open under the mouse.
 281         // and xfce doesn't open at all.
 282         e->xbutton.x = e->xbutton.x_root;
 283         e->xbutton.y = e->xbutton.y_root;
 284         //printf("**** %d, %d\n", e->xbutton.x, e->xbutton.y);
 285         //XSetInputFocus(server.dsp, e->xbutton.window, RevertToParent, e->xbutton.time);
 286         XSendEvent(server.dsp, e->xbutton.window, False, ButtonPressMask, e);
 287 }
 288
 289
 290 void event_button_press (XEvent *e)
 291 {
 292         Panel *panel = get_panel(e->xany.window);
 293         if (!panel) return;
 294
 295
 296         if (wm_menu && !tint2_handles_click(panel, &e->xbutton) ) {
 297                 forward_click(e);
 298                 return;
 299         }
 300         task_drag = click_task(panel, e->xbutton.x, e->xbutton.y);
 301
 302         XLowerWindow (server.dsp, panel->main_win);
 303 }
 304
 305
 306 void event_button_release (XEvent *e)
 307 {
 308         Panel *panel = get_panel(e->xany.window);
 309         if (!panel) return;
 310
 311         if (wm_menu && !tint2_handles_click(panel, &e->xbutton)) {
 312                 forward_click(e);
 313                 XLowerWindow (server.dsp, panel->main_win);
 314                 task_drag = 0;
 315                 return;
 316         }
 317
 318         int action = TOGGLE_ICONIFY;
 319         switch (e->xbutton.button) {
 320                 case 2:
 321                         action = mouse_middle;
 322                         break;
 323                 case 3:
 324                         action = mouse_right;
 325                         break;
 326                 case 4:
 327                         action = mouse_scroll_up;
 328                         break;
 329                 case 5:
 330                         action = mouse_scroll_down;
 331                         break;
 332                 case 6:
 333                         action = mouse_tilt_left;
 334                         break;
 335                 case 7:
 336                         action = mouse_tilt_right;
 337                         break;
 338         }
 339
 340         if ( click_clock(panel, e->xbutton.x, e->xbutton.y)) {
 341                 clock_action(e->xbutton.button);
 342                 XLowerWindow (server.dsp, panel->main_win);
 343                 task_drag = 0;
 344                 return;
 345         }
 346
 347         Taskbar *tskbar;
 348         if ( !(tskbar = click_taskbar(panel, e->xbutton.x, e->xbutton.y)) ) {
 349                 // TODO: check better solution to keep window below
 350                 XLowerWindow (server.dsp, panel->main_win);
 351                 task_drag = 0;
 352                 return;
 353         }
 354
 355         // drag and drop task
 356         if (task_drag) {
 357                 if (tskbar != task_drag->area.parent && action == TOGGLE_ICONIFY) {
 358                         if (task_drag->desktop != ALLDESKTOP && panel_mode == MULTI_DESKTOP) {
 359                                 windows_set_desktop(task_drag->win, tskbar->desktop);
 360                                 if (tskbar->desktop == server.desktop)
 361                                         set_active(task_drag->win);
 362                                 task_drag = 0;
 363                         }
 364                         return;
 365                 }
 366                 else task_drag = 0;
 367         }
 368
 369         // switch desktop
 370         if (panel_mode == MULTI_DESKTOP) {
 371                 if (tskbar->desktop != server.desktop && action != CLOSE && action != DESKTOP_LEFT && action != DESKTOP_RIGHT)
 372                         set_desktop (tskbar->desktop);
 373         }
 374
 375         // action on task
 376         window_action( click_task(panel, e->xbutton.x, e->xbutton.y), action);
 377
 378         // to keep window below
 379         XLowerWindow (server.dsp, panel->main_win);
 380 }
 381
 382
 383 void event_property_notify (XEvent *e)
 384 {
 385         int i;
 386         Task *tsk;
 387         Window win = e->xproperty.window;
 388         Atom at = e->xproperty.atom;
 389
 390         if (win == server.root_win) {
 391                 if (!server.got_root_win) {
 392                         XSelectInput (server.dsp, server.root_win, PropertyChangeMask|StructureNotifyMask);
 393                         server.got_root_win = 1;
 394                 }
 395
 396                 // Change number of desktops
 397                 else if (at == server.atom._NET_NUMBER_OF_DESKTOPS) {
 398                         server.nb_desktop = server_get_number_of_desktop ();
 399                         cleanup_taskbar();
 400                         init_taskbar();
 401                         visible_object();
 402                         for (i=0 ; i < nb_panel ; i++) {
 403                                 panel1[i].area.resize = 1;
 404                         }
 405                         task_refresh_tasklist();
 406                         active_task();
 407                         panel_refresh = 1;
 408                 }
 409                 // Change desktop
 410                 else if (at == server.atom._NET_CURRENT_DESKTOP) {
 411                         int old_desktop = server.desktop;
 412                         server.desktop = server_get_current_desktop ();
 413                         for (i=0 ; i < nb_panel ; i++) {
 414                                 Panel *panel = &panel1[i];
 415                                 if (panel_mode == MULTI_DESKTOP && panel->g_taskbar.use_active) {
 416                                         // redraw both taskbar
 417                                         if (server.nb_desktop > old_desktop) {
 418                                                 // can happen if last desktop is deleted and we've been on the last desktop
 419                                                 panel->taskbar[old_desktop].area.bg = panel->g_taskbar.bg;
 420                                                 panel->taskbar[old_desktop].area.resize = 1;
 421                                         }
 422                                         panel->taskbar[server.desktop].area.bg = panel->g_taskbar.bg_active;
 423                                         panel->taskbar[server.desktop].area.resize = 1;
 424                                         panel_refresh = 1;
 425                                 }
 426                                 // check ALLDESKTOP task => resize taskbar
 427                                 Taskbar *tskbar;
 428                                 Task *tsk;
 429                                 GSList *l;
 430                                 if (server.nb_desktop > old_desktop) {
 431                                         tskbar = &panel->taskbar[old_desktop];
 432                                         for (l = tskbar->area.list; l ; l = l->next) {
 433                                                 tsk = l->data;
 434                                                 if (tsk->desktop == ALLDESKTOP) {
 435                                                         tsk->area.on_screen = 0;
 436                                                         tskbar->area.resize = 1;
 437                                                         panel_refresh = 1;
 438                                                 }
 439                                         }
 440                                 }
 441                                 tskbar = &panel->taskbar[server.desktop];
 442                                 for (l = tskbar->area.list; l ; l = l->next) {
 443                                         tsk = l->data;
 444                                         if (tsk->desktop == ALLDESKTOP) {
 445                                                 tsk->area.on_screen = 1;
 446                                                 tskbar->area.resize = 1;
 447                                         }
 448                                 }
 449                         }
 450                         if (panel_mode != MULTI_DESKTOP) {
 451                                 visible_object();
 452                         }
 453                 }
 454                 // Window list
 455                 else if (at == server.atom._NET_CLIENT_LIST) {
 456                         task_refresh_tasklist();
 457                         panel_refresh = 1;
 458                 }
 459                 // Change active
 460                 else if (at == server.atom._NET_ACTIVE_WINDOW) {
 461                         active_task();
 462                         panel_refresh = 1;
 463                 }
 464                 else if (at == server.atom._XROOTPMAP_ID) {
 465                         // change Wallpaper
 466                         for (i=0 ; i < nb_panel ; i++) {
 467                                 set_panel_background(&panel1[i]);
 468                         }
 469                         panel_refresh = 1;
 470                 }
 471         }
 472         else {
 473                 tsk = task_get_task (win);
 474                 if (!tsk) {
 475                         if (at != server.atom._NET_WM_STATE)
 476                                 return;
 477                         else {
 478                                 // xfce4 sends _NET_WM_STATE after minimized to tray, so we need to check if window is mapped
 479                                 // if it is mapped and not set as skip_taskbar, we must add it to our task list
 480                                 XWindowAttributes wa;
 481                                 XGetWindowAttributes(server.dsp, win, &wa);
 482                                 if (wa.map_state == IsViewable && !window_is_skip_taskbar(win)) {
 483                                         if ( (tsk = add_task(win)) )
 484                                                 panel_refresh = 1;
 485                                         else
 486                                                 return;
 487                                 }
 488                                 else
 489                                         return;
 490                         }
 491                 }
 492                 //printf("atom root_win = %s, %s\n", XGetAtomName(server.dsp, at), tsk->title);
 493
 494                 // Window title changed
 495                 if (at == server.atom._NET_WM_VISIBLE_NAME || at == server.atom._NET_WM_NAME || at == server.atom.WM_NAME) {
 496                         get_title(tsk);
 497                         panel_refresh = 1;
 498                 }
 499                 // Demand attention
 500                 else if (at == server.atom._NET_WM_STATE) {
 501                         if (window_is_urgent (win)) {
 502                                 add_urgent(tsk);
 503                         }
 504                         if (window_is_skip_taskbar(win)) {
 505                                 remove_task( tsk );
 506                                 panel_refresh = 1;
 507                         }
 508                 }
 509                 else if (at == server.atom.WM_STATE) {
 510                         // Iconic state
 511                         int state = (task_active && tsk->win == task_active->win ? TASK_ACTIVE : TASK_NORMAL);
 512                         if (window_is_iconified(win))
 513                                 state = TASK_ICONIFIED;
 514                         set_task_state(tsk, state);
 515                         panel_refresh = 1;
 516                 }
 517                 // Window icon changed
 518                 else if (at == server.atom._NET_WM_ICON) {
 519                         get_icon(tsk);
 520                         panel_refresh = 1;
 521                 }
 522                 // Window desktop changed
 523                 else if (at == server.atom._NET_WM_DESKTOP) {
 524                         int desktop = window_get_desktop (win);
 525                         //printf("  Window desktop changed %d, %d\n", tsk->desktop, desktop);
 526                         // bug in windowmaker : send unecessary 'desktop changed' when focus changed
 527                         if (desktop != tsk->desktop) {
 528                                 remove_task (tsk);
 529                                 tsk = add_task (win);
 530                                 active_task();
 531                                 panel_refresh = 1;
 532                         }
 533                 }
 534                 else if (at == server.atom.WM_HINTS) {
 535                         XWMHints* wmhints = XGetWMHints(server.dsp, win);
 536                         if (wmhints && wmhints->flags & XUrgencyHint) {
 537                                 add_urgent(tsk);
 538                         }
 539                         XFree(wmhints);
 540                 }
 541
 542                 if (!server.got_root_win) server.root_win = RootWindow (server.dsp, server.screen);
 543         }
 544 }
 545
 546
 547 void event_expose (XEvent *e)
 548 {
 549         Panel *panel;
 550         panel = get_panel(e->xany.window);
 551         if (!panel) return;
 552         // TODO : one panel_refresh per panel ?
 553         panel_refresh = 1;
 554 }
 555
 556
 557 void event_configure_notify (Window win)
 558 {
 559         // change in root window (xrandr)
 560         if (win == server.root_win) {
 561                 get_monitors();
 562                 init_config();
 563                 config_read_file (config_path);
 564                 init_panel();
 565                 cleanup_config();
 566                 return;
 567         }
 568
 569         // 'win' is a trayer icon
 570         TrayWindow *traywin;
 571         GSList *l;
 572         for (l = systray.list_icons; l ; l = l->next) {
 573                 traywin = (TrayWindow*)l->data;
 574                 if (traywin->tray_id == win) {
 575                         //printf("move tray %d\n", traywin->x);
 576                         XMoveResizeWindow(server.dsp, traywin->id, traywin->x, traywin->y, traywin->width, traywin->height);
 577                         XResizeWindow(server.dsp, traywin->tray_id, traywin->width, traywin->height);
 578                         panel_refresh = 1;
 579                         return;
 580                 }
 581         }
 582
 583         // 'win' move in another monitor
 584         if (nb_panel == 1) return;
 585         Task *tsk = task_get_task (win);
 586         if (!tsk) return;
 587
 588         Panel *p = tsk->area.panel;
 589         if (p->monitor != window_get_monitor (win)) {
 590                 remove_task (tsk);
 591                 tsk = add_task (win);
 592                 if (win == window_get_active ()) {
 593                         set_task_state(tsk, TASK_ACTIVE);
 594                         task_active = tsk;
 595                 }
 596                 panel_refresh = 1;
 597         }
 598 }
 599
 600
 601 void dnd_message(XClientMessageEvent *e)
 602 {
 603         Panel *panel = get_panel(e->window);
 604         int x, y, mapX, mapY;
 605         Window child;
 606         x = (e->data.l[2] >> 16) & 0xFFFF;
 607         y = e->data.l[2] & 0xFFFF;
 608         XTranslateCoordinates(server.dsp, server.root_win, e->window, x, y, &mapX, &mapY, &child);
 609         Task* task = click_task(panel, mapX, mapY);
 610         if (task) {
 611                 if (task->desktop != server.desktop )
 612                         set_desktop (task->desktop);
 613                 window_action(task, TOGGLE);
 614         }
 615
 616         // send XdndStatus event to get more XdndPosition events
 617         XClientMessageEvent se;
 618         se.type = ClientMessage;
 619         se.window = e->data.l[0];
 620         se.message_type = server.atom.XdndStatus;
 621         se.format = 32;
 622         se.data.l[0] = e->window;  // XID of the target window
 623         se.data.l[1] = 0;          // bit 0: accept drop    bit 1: send XdndPosition events if inside rectangle
 624         se.data.l[2] = 0;          // Rectangle x,y for which no more XdndPosition events
 625         se.data.l[3] = (1 << 16) | 1;  // Rectangle w,h for which no more XdndPosition events
 626         se.data.l[4] = None;       // None = drop will not be accepted
 627         XSendEvent(server.dsp, e->data.l[0], False, NoEventMask, (XEvent*)&se);
 628 }
 629
 630
 631 int main (int argc, char *argv[])
 632 {
 633         XEvent e;
 634         fd_set fdset;
 635         int x11_fd, i;
 636         Panel *panel;
 637         GSList *it;
 638         struct timeval* timeout;
 639
 640         init (argc, argv);
 641         init_config();
 642         i = 0;
 643         if (config_path)
 644                 i = config_read_file (config_path);
 645         else
 646                 i = config_read ();
 647         if (!i) {
 648                 fprintf(stderr, "usage: tint2 [-c] <config_file>\n");
 649                 cleanup();
 650                 exit(1);
 651         }
 652
 653         init_X11();
 654         init_panel();
 655         cleanup_config();
 656         if (snapshot_path) {
 657                 get_snapshot(snapshot_path);
 658                 cleanup();
 659                 exit(0);
 660         }
 661
 662         int damage_event, damage_error;
 663         XDamageQueryExtension(server.dsp, &damage_event, &damage_error);
 664         x11_fd = ConnectionNumber(server.dsp);
 665         XSync(server.dsp, False);
 666
 667 //      sigset_t empty_mask;
 668 //      sigemptyset(&empty_mask);
 669
 670         while (1) {
 671                 if (panel_refresh) {
 672                         panel_refresh = 0;
 673
 674                         // QUESTION: do we need this first refresh_systray, because we check refresh_systray once again later...
 675                         if (refresh_systray) {
 676                                 panel = (Panel*)systray.area.panel;
 677                                 XSetWindowBackgroundPixmap (server.dsp, panel->main_win, None);
 678                         }
 679                         for (i=0 ; i < nb_panel ; i++) {
 680                                 panel = &panel1[i];
 681
 682                                 if (panel->is_hidden) {
 683                                         XCopyArea(server.dsp, panel->hidden_pixmap, panel->main_win, server.gc, 0, 0, panel->hidden_width, panel->hidden_height, 0, 0);
 684                                         XSetWindowBackgroundPixmap(server.dsp, panel->main_win, panel->hidden_pixmap);
 685                                 }
 686                                 else {
 687                                         if (panel->temp_pmap) XFreePixmap(server.dsp, panel->temp_pmap);
 688                                         panel->temp_pmap = XCreatePixmap(server.dsp, server.root_win, panel->area.width, panel->area.height, server.depth);
 689                                         refresh(&panel->area);
 690                                         XCopyArea(server.dsp, panel->temp_pmap, panel->main_win, server.gc, 0, 0, panel->area.width, panel->area.height, 0, 0);
 691                                 }
 692                         }
 693                         XFlush (server.dsp);
 694
 695                         panel = (Panel*)systray.area.panel;
 696                         if (refresh_systray && !panel->is_hidden) {
 697                                 refresh_systray = 0;
 698                                 panel = (Panel*)systray.area.panel;
 699                                 // tint2 doen't draw systray icons. it just redraw background.
 700                                 XSetWindowBackgroundPixmap (server.dsp, panel->main_win, panel->temp_pmap);
 701                                 // force icon's refresh
 702                                 refresh_systray_icon();
 703                         }
 704                 }
 705
 706                 // thanks to AngryLlama for the timer
 707                 // Create a File Description Set containing x11_fd
 708                 FD_ZERO (&fdset);
 709                 FD_SET (x11_fd, &fdset);
 710                 update_next_timeout();
 711                 if (next_timeout.tv_sec >= 0 && next_timeout.tv_usec >= 0)
 712                         timeout = &next_timeout;
 713                 else
 714                         timeout = 0;
 715
 716                 // Wait for X Event or a Timer
 717                 if (select(x11_fd+1, &fdset, 0, 0, timeout) > 0) {
 718                         while (XPending (server.dsp)) {
 719                                 XNextEvent(server.dsp, &e);
 720
 721                                 panel = get_panel(e.xany.window);
 722                                 if (panel && panel_autohide) {
 723                                         if (e.type == EnterNotify)
 724                                                 autohide_trigger_show(panel);
 725                                         else if (e.type == LeaveNotify)
 726                                                 autohide_trigger_hide(panel);
 727                                         if (panel->is_hidden)
 728                                                 continue;   // discard further processing of this event because the panel is not visible yet
 729                                 }
 730
 731                                 switch (e.type) {
 732                                         case ButtonPress:
 733                                                 tooltip_hide(0);
 734                                                 event_button_press (&e);
 735                                                 break;
 736
 737                                         case ButtonRelease:
 738                                                 event_button_release(&e);
 739                                                 break;
 740
 741                                         case MotionNotify: {
 742                                                 if (!g_tooltip.enabled) break;
 743                                                 Panel* panel = get_panel(e.xmotion.window);
 744                                                 Area* area = click_area(panel, e.xmotion.x, e.xmotion.y);
 745                                                 if (area->_get_tooltip_text)
 746                                                         tooltip_trigger_show(area, panel, e.xmotion.x_root, e.xmotion.y_root);
 747                                                 else
 748                                                         tooltip_trigger_hide();
 749                                                 break;
 750                                         }
 751
 752                                         case LeaveNotify:
 753                                                 if (g_tooltip.enabled)
 754                                                         tooltip_trigger_hide();
 755                                                 break;
 756
 757                                         case Expose:
 758                                                 event_expose(&e);
 759                                                 break;
 760
 761                                         case PropertyNotify:
 762                                                 event_property_notify(&e);
 763                                                 break;
 764
 765                                         case ConfigureNotify:
 766                                                 event_configure_notify (e.xconfigure.window);
 767                                                 break;
 768
 769                                         case ReparentNotify:
 770                                                 if (!systray_enabled)
 771                                                         break;
 772                                                 panel = (Panel*)systray.area.panel;
 773                                                 if (e.xany.window == panel->main_win) // reparented to us
 774                                                         break;
 775                                                 // FIXME: 'reparent to us' badly detected => disabled
 776                                                 break;
 777                                         case UnmapNotify:
 778                                         case DestroyNotify:
 779                                                 if (e.xany.window == g_tooltip.window || !systray.area.on_screen)
 780                                                         break;
 781                                                 for (it = systray.list_icons; it; it = g_slist_next(it)) {
 782                                                         if (((TrayWindow*)it->data)->tray_id == e.xany.window) {
 783                                                                 remove_icon((TrayWindow*)it->data);
 784                                                                 break;
 785                                                         }
 786                                                 }
 787                                         break;
 788
 789                                         case ClientMessage:
 790                                                 if (!systray.area.on_screen) break;
 791                                                 if (e.xclient.message_type == server.atom._NET_SYSTEM_TRAY_OPCODE && e.xclient.format == 32 && e.xclient.window == net_sel_win) {
 792                                                         net_message(&e.xclient);
 793                                                 }
 794                                                 else if (e.xclient.message_type == server.atom.XdndPosition) {
 795                                                         dnd_message(&e.xclient);
 796                                                 }
 797                                                 break;
 798
 799                                         default:
 800                                                 if (e.type == XDamageNotify+damage_event) {
 801                                                         // union needed to avoid strict-aliasing warnings by gcc
 802                                                         union { XEvent e; XDamageNotifyEvent de; } event_union = {.e=e};
 803                                                         TrayWindow *traywin;
 804                                                         GSList *l;
 805                                                         XDamageNotifyEvent* de = &event_union.de;
 806                                                         for (l = systray.list_icons; l ; l = l->next) {
 807                                                                 traywin = (TrayWindow*)l->data;
 808                                                                 if ( traywin->id == de->drawable && !de->more ) {
 809                                                                         systray_render_icon(traywin);
 810                                                                         break;
 811                                                                 }
 812                                                         }
 813                                                 }
 814                                 }
 815                         }
 816                 }
 817
 818                 callback_timeout_expired();
 819
 820                 switch (signal_pending) {
 821                 case SIGUSR1: // reload config file
 822                         signal_pending = 0;
 823                         init_config();
 824                         config_read_file (config_path);
 825                         init_panel();
 826                         cleanup_config();
 827                         break;
 828                 case SIGINT:
 829                 case SIGTERM:
 830                 case SIGHUP:
 831                         cleanup ();
 832                         return 0;
 833                 }
 834         }
 835 }
 836
 837