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 "version.h"
  35 #include "server.h"
  36 #include "window.h"
  37 #include "config.h"
  38 #include "task.h"
  39 #include "taskbar.h"
  40 #include "systraybar.h"
  41 #include "panel.h"
  42 #include "tooltip.h"
  43 #include "timer.h"
  44
  45 void signal_handler(int sig)
  46 {
  47         // signal handler is light as it should be
  48         signal_pending = sig;
  49 }
  50
  51
  52 void init (int argc, char *argv[])
  53 {
  54         int i;
  55
  56         // read options
  57         for (i = 1; i < argc; ++i) {
  58                 if (!strcmp(argv[i], "-h") || !strcmp(argv[i], "--help"))       {
  59                         printf("Usage: tint2 [-c] <config_file>\n");
  60                         exit(0);
  61                 }
  62                 if (!strcmp(argv[i], "-v") || !strcmp(argv[i], "--version"))    {
  63                         printf("tint2 version %s\n", VERSION_STRING);
  64                         exit(0);
  65                 }
  66                 if (!strcmp(argv[i], "-c")) {
  67                         i++;
  68                         if (i < argc)
  69                                 config_path = strdup(argv[i]);
  70                 }
  71                 if (!strcmp(argv[i], "-s"))     {
  72                         i++;
  73                         if (i < argc)
  74                                 snapshot_path = strdup(argv[i]);
  75                 }
  76         }
  77         // Set signal handler
  78         struct sigaction sa = { .sa_handler = signal_handler };
  79         sigaction(SIGUSR1, &sa, 0);
  80         sigaction(SIGINT, &sa, 0);
  81         sigaction(SIGTERM, &sa, 0);
  82         sigaction(SIGHUP, &sa, 0);
  83         signal(SIGCHLD, SIG_IGN);               // don't have to wait() after fork()
  84
  85         // BSD is too stupid to support pselect(), therefore we have to use select and hope that we do not
  86         // end up in a race condition there
  87         // block all signals, such that no race conditions occur before pselect in our main loop
  88 //      sigset_t block_mask;
  89 //      sigaddset(&block_mask, SIGINT);
  90 //      sigaddset(&block_mask, SIGTERM);
  91 //      sigaddset(&block_mask, SIGHUP);
  92 //      sigaddset(&block_mask, SIGUSR1);
  93 //      sigprocmask(SIG_BLOCK, &block_mask, 0);
  94
  95         // set global data
  96         memset(&server, 0, sizeof(Server_global));
  97         memset(&systray, 0, sizeof(Systraybar));
  98 }
  99
 100 void init_X11()
 101 {
 102         server.dsp = XOpenDisplay (NULL);
 103         if (!server.dsp) {
 104                 fprintf(stderr, "tint2 exit : could not open display.\n");
 105                 exit(0);
 106         }
 107         server_init_atoms ();
 108         server.screen = DefaultScreen (server.dsp);
 109         server.root_win = RootWindow(server.dsp, server.screen);
 110         server.desktop = server_get_current_desktop ();
 111         server_init_visual();
 112         XSetErrorHandler ((XErrorHandler) server_catch_error);
 113
 114         imlib_context_set_display (server.dsp);
 115         imlib_context_set_visual (server.visual);
 116         imlib_context_set_colormap (server.colormap);
 117
 118         /* Catch events */
 119         XSelectInput (server.dsp, server.root_win, PropertyChangeMask|StructureNotifyMask);
 120
 121         setlocale (LC_ALL, "");
 122
 123         // load default icon
 124         gchar *path;
 125         const gchar * const *data_dirs;
 126         data_dirs = g_get_system_data_dirs ();
 127         int i;
 128         for (i = 0; data_dirs[i] != NULL; i++)  {
 129                 path = g_build_filename(data_dirs[i], "tint2", "default_icon.png", NULL);
 130                 if (g_file_test (path, G_FILE_TEST_EXISTS))
 131                         default_icon = imlib_load_image(path);
 132                 g_free(path);
 133         }
 134
 135         // get monitor and desktop config
 136         get_monitors();
 137         get_desktops();
 138 }
 139
 140
 141 void cleanup()
 142 {
 143         stop_all_timeouts();
 144         cleanup_systray();
 145         stop_net();
 146         cleanup_panel();
 147         cleanup_tooltip();
 148         cleanup_clock();
 149 #ifdef ENABLE_BATTERY
 150         cleanup_battery();
 151 #endif
 152
 153         if (default_icon) {
 154                 imlib_context_set_image(default_icon);
 155                 imlib_free_image();
 156         }
 157         if (config_path) g_free(config_path);
 158         if (snapshot_path) g_free(snapshot_path);
 159
 160         cleanup_server();
 161         if (server.dsp) XCloseDisplay(server.dsp);
 162 }
 163
 164
 165 void get_snapshot(const char *path)
 166 {
 167         Panel *panel = &panel1[0];
 168
 169         if (panel->temp_pmap) XFreePixmap(server.dsp, panel->temp_pmap);
 170         panel->temp_pmap = XCreatePixmap(server.dsp, server.root_win, panel->area.width, panel->area.height, server.depth);
 171
 172         refresh(&panel->area);
 173
 174         Imlib_Image img = NULL;
 175         imlib_context_set_drawable(panel->temp_pmap);
 176         img = imlib_create_image_from_drawable(0, 0, 0, panel->area.width, panel->area.height, 0);
 177
 178         imlib_context_set_image(img);
 179         imlib_save_image(path);
 180         imlib_free_image();
 181 }
 182
 183
 184 void window_action (Task *tsk, int action)
 185 {
 186         if (!tsk) return;
 187         int desk;
 188         switch (action) {
 189                 case CLOSE:
 190                         set_close (tsk->win);
 191                         break;
 192                 case TOGGLE:
 193                         set_active(tsk->win);
 194                         break;
 195                 case ICONIFY:
 196                         XIconifyWindow (server.dsp, tsk->win, server.screen);
 197                         break;
 198                 case TOGGLE_ICONIFY:
 199                         if (task_active && tsk->win == task_active->win)
 200                                 XIconifyWindow (server.dsp, tsk->win, server.screen);
 201                         else
 202                                 set_active (tsk->win);
 203                         break;
 204                 case SHADE:
 205                         window_toggle_shade (tsk->win);
 206                         break;
 207                 case MAXIMIZE_RESTORE:
 208                         window_maximize_restore (tsk->win);
 209                         break;
 210                 case MAXIMIZE:
 211                         window_maximize_restore (tsk->win);
 212                         break;
 213                 case RESTORE:
 214                         window_maximize_restore (tsk->win);
 215                         break;
 216                 case DESKTOP_LEFT:
 217                         if ( tsk->desktop == 0 ) break;
 218                         desk = tsk->desktop - 1;
 219                         windows_set_desktop(tsk->win, desk);
 220                         if (desk == server.desktop)
 221                                 set_active(tsk->win);
 222                         break;
 223                 case DESKTOP_RIGHT:
 224                         if (tsk->desktop == server.nb_desktop ) break;
 225                         desk = tsk->desktop + 1;
 226                         windows_set_desktop(tsk->win, desk);
 227                         if (desk == server.desktop)
 228                                 set_active(tsk->win);
 229                         break;
 230                 case NEXT_TASK:
 231                         if (task_active) {
 232                                 Task *tsk1;
 233                                 tsk1 = next_task(task_active);
 234                                 set_active(tsk1->win);
 235                         }
 236                         break;
 237                 case PREV_TASK:
 238                         if (task_active) {
 239                                 Task *tsk1;
 240                                 tsk1 = prev_task(task_active);
 241                                 set_active(tsk1->win);
 242                         }
 243         }
 244 }
 245
 246
 247 int tint2_handles_click(Panel* panel, XButtonEvent* e)
 248 {
 249         Task* task = click_task(panel, e->x, e->y);
 250         if (task) {
 251                 if(   (e->button == 1)
 252                          || (e->button == 2 && mouse_middle != 0)
 253                          || (e->button == 3 && mouse_right != 0)
 254                          || (e->button == 4 && mouse_scroll_up != 0)
 255                          || (e->button == 5 && mouse_scroll_down !=0) )
 256                 {
 257                         return 1;
 258                 }
 259                 else
 260                         return 0;
 261         }
 262         // no task clicked --> check if taskbar clicked
 263         Taskbar *tskbar = click_taskbar(panel, e->x, e->y);
 264         if (tskbar && e->button == 1 && panel_mode == MULTI_DESKTOP)
 265                 return 1;
 266         if (click_clock(panel, e->x, e->y)) {
 267                 if ( (e->button == 1 && clock_lclick_command) || (e->button == 3 && clock_rclick_command) )
 268                         return 1;
 269                 else
 270                         return 0;
 271         }
 272         return 0;
 273 }
 274
 275
 276 void forward_click(XEvent* e)
 277 {
 278         // forward the click to the desktop window (thanks conky)
 279         XUngrabPointer(server.dsp, e->xbutton.time);
 280         e->xbutton.window = server.root_win;
 281         // icewm doesn't open under the mouse.
 282         // and xfce doesn't open at all.
 283         e->xbutton.x = e->xbutton.x_root;
 284         e->xbutton.y = e->xbutton.y_root;
 285         //printf("**** %d, %d\n", e->xbutton.x, e->xbutton.y);
 286         //XSetInputFocus(server.dsp, e->xbutton.window, RevertToParent, e->xbutton.time);
 287         XSendEvent(server.dsp, e->xbutton.window, False, ButtonPressMask, e);
 288 }
 289
 290
 291 void event_button_press (XEvent *e)
 292 {
 293         Panel *panel = get_panel(e->xany.window);
 294         if (!panel) return;
 295
 296
 297         if (wm_menu && !tint2_handles_click(panel, &e->xbutton) ) {
 298                 forward_click(e);
 299                 return;
 300         }
 301         task_drag = click_task(panel, e->xbutton.x, e->xbutton.y);
 302
 303         XLowerWindow (server.dsp, panel->main_win);
 304 }
 305
 306
 307 void event_button_release (XEvent *e)
 308 {
 309         Panel *panel = get_panel(e->xany.window);
 310         if (!panel) return;
 311
 312         if (wm_menu && !tint2_handles_click(panel, &e->xbutton)) {
 313                 forward_click(e);
 314                 XLowerWindow (server.dsp, panel->main_win);
 315                 task_drag = 0;
 316                 return;
 317         }
 318
 319         int action = TOGGLE_ICONIFY;
 320         switch (e->xbutton.button) {
 321                 case 2:
 322                         action = mouse_middle;
 323                         break;
 324                 case 3:
 325                         action = mouse_right;
 326                         break;
 327                 case 4:
 328                         action = mouse_scroll_up;
 329                         break;
 330                 case 5:
 331                         action = mouse_scroll_down;
 332                         break;
 333                 case 6:
 334                         action = mouse_tilt_left;
 335                         break;
 336                 case 7:
 337                         action = mouse_tilt_right;
 338                         break;
 339         }
 340
 341         if ( click_clock(panel, e->xbutton.x, e->xbutton.y)) {
 342                 clock_action(e->xbutton.button);
 343                 XLowerWindow (server.dsp, panel->main_win);
 344                 task_drag = 0;
 345                 return;
 346         }
 347
 348         Taskbar *tskbar;
 349         if ( !(tskbar = click_taskbar(panel, e->xbutton.x, e->xbutton.y)) ) {
 350                 // TODO: check better solution to keep window below
 351                 XLowerWindow (server.dsp, panel->main_win);
 352                 task_drag = 0;
 353                 return;
 354         }
 355
 356         // drag and drop task
 357         if (task_drag) {
 358                 if (tskbar != task_drag->area.parent && action == TOGGLE_ICONIFY) {
 359                         if (task_drag->desktop != ALLDESKTOP && panel_mode == MULTI_DESKTOP) {
 360                                 windows_set_desktop(task_drag->win, tskbar->desktop);
 361                                 if (tskbar->desktop == server.desktop)
 362                                         set_active(task_drag->win);
 363                                 task_drag = 0;
 364                         }
 365                         return;
 366                 }
 367                 else task_drag = 0;
 368         }
 369
 370         // switch desktop
 371         if (panel_mode == MULTI_DESKTOP) {
 372                 if (tskbar->desktop != server.desktop && action != CLOSE && action != DESKTOP_LEFT && action != DESKTOP_RIGHT)
 373                         set_desktop (tskbar->desktop);
 374         }
 375
 376         // action on task
 377         window_action( click_task(panel, e->xbutton.x, e->xbutton.y), action);
 378
 379         // to keep window below
 380         XLowerWindow (server.dsp, panel->main_win);
 381 }
 382
 383
 384 void event_property_notify (XEvent *e)
 385 {
 386         int i;
 387         Task *tsk;
 388         Window win = e->xproperty.window;
 389         Atom at = e->xproperty.atom;
 390
 391         if (win == server.root_win) {
 392                 if (!server.got_root_win) {
 393                         XSelectInput (server.dsp, server.root_win, PropertyChangeMask|StructureNotifyMask);
 394                         server.got_root_win = 1;
 395                 }
 396
 397                 // Change number of desktops
 398                 else if (at == server.atom._NET_NUMBER_OF_DESKTOPS) {
 399                         server.nb_desktop = server_get_number_of_desktop ();
 400                         cleanup_taskbar();
 401                         init_taskbar();
 402                         visible_object();
 403                         for (i=0 ; i < nb_panel ; i++) {
 404                                 panel1[i].area.resize = 1;
 405                         }
 406                         task_refresh_tasklist();
 407                         active_task();
 408                         panel_refresh = 1;
 409                 }
 410                 // Change desktop
 411                 else if (at == server.atom._NET_CURRENT_DESKTOP) {
 412                         int old_desktop = server.desktop;
 413                         server.desktop = server_get_current_desktop ();
 414                         for (i=0 ; i < nb_panel ; i++) {
 415                                 Panel *panel = &panel1[i];
 416                                 if (panel_mode == MULTI_DESKTOP && panel->g_taskbar.use_active) {
 417                                         // redraw both taskbar
 418                                         if (server.nb_desktop > old_desktop) {
 419                                                 // can happen if last desktop is deleted and we've been on the last desktop
 420                                                 panel->taskbar[old_desktop].area.bg = panel->g_taskbar.bg;
 421                                                 panel->taskbar[old_desktop].area.resize = 1;
 422                                         }
 423                                         panel->taskbar[server.desktop].area.bg = panel->g_taskbar.bg_active;
 424                                         panel->taskbar[server.desktop].area.resize = 1;
 425                                         panel_refresh = 1;
 426                                 }
 427                                 // check ALLDESKTOP task => resize taskbar
 428                                 Taskbar *tskbar;
 429                                 Task *tsk;
 430                                 GSList *l;
 431                                 if (server.nb_desktop > old_desktop) {
 432                                         tskbar = &panel->taskbar[old_desktop];
 433                                         for (l = tskbar->area.list; l ; l = l->next) {
 434                                                 tsk = l->data;
 435                                                 if (tsk->desktop == ALLDESKTOP) {
 436                                                         tsk->area.on_screen = 0;
 437                                                         tskbar->area.resize = 1;
 438                                                         panel_refresh = 1;
 439                                                 }
 440                                         }
 441                                 }
 442                                 tskbar = &panel->taskbar[server.desktop];
 443                                 for (l = tskbar->area.list; l ; l = l->next) {
 444                                         tsk = l->data;
 445                                         if (tsk->desktop == ALLDESKTOP) {
 446                                                 tsk->area.on_screen = 1;
 447                                                 tskbar->area.resize = 1;
 448                                         }
 449                                 }
 450                         }
 451                         if (panel_mode != MULTI_DESKTOP) {
 452                                 visible_object();
 453                         }
 454                 }
 455                 // Window list
 456                 else if (at == server.atom._NET_CLIENT_LIST) {
 457                         task_refresh_tasklist();
 458                         panel_refresh = 1;
 459                 }
 460                 // Change active
 461                 else if (at == server.atom._NET_ACTIVE_WINDOW) {
 462                         active_task();
 463                         panel_refresh = 1;
 464                 }
 465                 else if (at == server.atom._XROOTPMAP_ID) {
 466                         // change Wallpaper
 467                         for (i=0 ; i < nb_panel ; i++) {
 468                                 set_panel_background(&panel1[i]);
 469                         }
 470                         panel_refresh = 1;
 471                 }
 472         }
 473         else {
 474                 tsk = task_get_task (win);
 475                 if (!tsk) {
 476                         if (at != server.atom._NET_WM_STATE)
 477                                 return;
 478                         else {
 479                                 // xfce4 sends _NET_WM_STATE after minimized to tray, so we need to check if window is mapped
 480                                 // if it is mapped and not set as skip_taskbar, we must add it to our task list
 481                                 XWindowAttributes wa;
 482                                 XGetWindowAttributes(server.dsp, win, &wa);
 483                                 if (wa.map_state == IsViewable && !window_is_skip_taskbar(win)) {
 484                                         if ( (tsk = add_task(win)) )
 485                                                 panel_refresh = 1;
 486                                         else
 487                                                 return;
 488                                 }
 489                                 else
 490                                         return;
 491                         }
 492                 }
 493                 //printf("atom root_win = %s, %s\n", XGetAtomName(server.dsp, at), tsk->title);
 494
 495                 // Window title changed
 496                 if (at == server.atom._NET_WM_VISIBLE_NAME || at == server.atom._NET_WM_NAME || at == server.atom.WM_NAME) {
 497                         get_title(tsk);
 498                         if (g_tooltip.mapped && (g_tooltip.area == (Area*)tsk)) {
 499                                 tooltip_copy_text((Area*)tsk);
 500                                 tooltip_update();
 501                         }
 502                         panel_refresh = 1;
 503                 }
 504                 // Demand attention
 505                 else if (at == server.atom._NET_WM_STATE) {
 506                         if (window_is_urgent (win)) {
 507                                 add_urgent(tsk);
 508                         }
 509                         if (window_is_skip_taskbar(win)) {
 510                                 remove_task( tsk );
 511                                 panel_refresh = 1;
 512                         }
 513                 }
 514                 else if (at == server.atom.WM_STATE) {
 515                         // Iconic state
 516                         int state = (task_active && tsk->win == task_active->win ? TASK_ACTIVE : TASK_NORMAL);
 517                         if (window_is_iconified(win))
 518                                 state = TASK_ICONIFIED;
 519                         set_task_state(tsk, state);
 520                         panel_refresh = 1;
 521                 }
 522                 // Window icon changed
 523                 else if (at == server.atom._NET_WM_ICON) {
 524                         get_icon(tsk);
 525                         panel_refresh = 1;
 526                 }
 527                 // Window desktop changed
 528                 else if (at == server.atom._NET_WM_DESKTOP) {
 529                         int desktop = window_get_desktop (win);
 530                         //printf("  Window desktop changed %d, %d\n", tsk->desktop, desktop);
 531                         // bug in windowmaker : send unecessary 'desktop changed' when focus changed
 532                         if (desktop != tsk->desktop) {
 533                                 remove_task (tsk);
 534                                 tsk = add_task (win);
 535                                 active_task();
 536                                 panel_refresh = 1;
 537                         }
 538                 }
 539                 else if (at == server.atom.WM_HINTS) {
 540                         XWMHints* wmhints = XGetWMHints(server.dsp, win);
 541                         if (wmhints && wmhints->flags & XUrgencyHint) {
 542                                 add_urgent(tsk);
 543                         }
 544                         XFree(wmhints);
 545                 }
 546
 547                 if (!server.got_root_win) server.root_win = RootWindow (server.dsp, server.screen);
 548         }
 549 }
 550
 551
 552 void event_expose (XEvent *e)
 553 {
 554         Panel *panel;
 555         panel = get_panel(e->xany.window);
 556         if (!panel) return;
 557         // TODO : one panel_refresh per panel ?
 558         panel_refresh = 1;
 559 }
 560
 561
 562 void event_configure_notify (Window win)
 563 {
 564         // change in root window (xrandr)
 565         if (win == server.root_win) {
 566                 get_monitors();
 567                 init_config();
 568                 config_read_file (config_path);
 569                 init_panel();
 570                 cleanup_config();
 571                 return;
 572         }
 573
 574         // 'win' is a trayer icon
 575         TrayWindow *traywin;
 576         GSList *l;
 577         for (l = systray.list_icons; l ; l = l->next) {
 578                 traywin = (TrayWindow*)l->data;
 579                 if (traywin->tray_id == win) {
 580                         //printf("move tray %d\n", traywin->x);
 581                         XMoveResizeWindow(server.dsp, traywin->id, traywin->x, traywin->y, traywin->width, traywin->height);
 582                         XResizeWindow(server.dsp, traywin->tray_id, traywin->width, traywin->height);
 583                         panel_refresh = 1;
 584                         return;
 585                 }
 586         }
 587
 588         // 'win' move in another monitor
 589         if (nb_panel == 1) return;
 590         Task *tsk = task_get_task (win);
 591         if (!tsk) return;
 592
 593         Panel *p = tsk->area.panel;
 594         if (p->monitor != window_get_monitor (win)) {
 595                 remove_task (tsk);
 596                 tsk = add_task (win);
 597                 if (win == window_get_active ()) {
 598                         set_task_state(tsk, TASK_ACTIVE);
 599                         task_active = tsk;
 600                 }
 601                 panel_refresh = 1;
 602         }
 603 }
 604
 605
 606 void dnd_message(XClientMessageEvent *e)
 607 {
 608         Panel *panel = get_panel(e->window);
 609         int x, y, mapX, mapY;
 610         Window child;
 611         x = (e->data.l[2] >> 16) & 0xFFFF;
 612         y = e->data.l[2] & 0xFFFF;
 613         XTranslateCoordinates(server.dsp, server.root_win, e->window, x, y, &mapX, &mapY, &child);
 614         Task* task = click_task(panel, mapX, mapY);
 615         if (task) {
 616                 if (task->desktop != server.desktop )
 617                         set_desktop (task->desktop);
 618                 window_action(task, TOGGLE);
 619         }
 620
 621         // send XdndStatus event to get more XdndPosition events
 622         XClientMessageEvent se;
 623         se.type = ClientMessage;
 624         se.window = e->data.l[0];
 625         se.message_type = server.atom.XdndStatus;
 626         se.format = 32;
 627         se.data.l[0] = e->window;  // XID of the target window
 628         se.data.l[1] = 0;          // bit 0: accept drop    bit 1: send XdndPosition events if inside rectangle
 629         se.data.l[2] = 0;          // Rectangle x,y for which no more XdndPosition events
 630         se.data.l[3] = (1 << 16) | 1;  // Rectangle w,h for which no more XdndPosition events
 631         se.data.l[4] = None;       // None = drop will not be accepted
 632         XSendEvent(server.dsp, e->data.l[0], False, NoEventMask, (XEvent*)&se);
 633 }
 634
 635
 636 int main (int argc, char *argv[])
 637 {
 638         XEvent e;
 639         XClientMessageEvent *ev;
 640         fd_set fdset;
 641         int x11_fd, i;
 642         Panel *panel;
 643         GSList *it;
 644         struct timeval* timeout;
 645
 646         init (argc, argv);
 647         init_config();
 648         i = 0;
 649         if (config_path)
 650                 i = config_read_file (config_path);
 651         else
 652                 i = config_read ();
 653         if (!i) {
 654                 fprintf(stderr, "usage: tint2 [-c] <config_file>\n");
 655                 cleanup();
 656                 exit(1);
 657         }
 658
 659         init_X11();
 660         init_panel();
 661         cleanup_config();
 662         if (snapshot_path) {
 663                 get_snapshot(snapshot_path);
 664                 cleanup();
 665                 exit(0);
 666         }
 667
 668         int damage_event, damage_error;
 669         XDamageQueryExtension(server.dsp, &damage_event, &damage_error);
 670         x11_fd = ConnectionNumber(server.dsp);
 671         XSync(server.dsp, False);
 672
 673 //      sigset_t empty_mask;
 674 //      sigemptyset(&empty_mask);
 675
 676         while (1) {
 677                 if (panel_refresh) {
 678                         panel_refresh = 0;
 679
 680                         // QUESTION: do we need this first refresh_systray, because we check refresh_systray once again later...
 681                         // ANSWER: yes, panel->temp_pmap is freeded in the loop.
 682                         // we change background to None to avoid tray icon using freeded pixmap.
 683                         if (refresh_systray) {
 684                                 panel = (Panel*)systray.area.panel;
 685                                 XSetWindowBackgroundPixmap (server.dsp, panel->main_win, None);
 686                         }
 687                         for (i=0 ; i < nb_panel ; i++) {
 688                                 panel = &panel1[i];
 689
 690                                 if (panel->is_hidden) {
 691                                         XCopyArea(server.dsp, panel->hidden_pixmap, panel->main_win, server.gc, 0, 0, panel->hidden_width, panel->hidden_height, 0, 0);
 692                                         XSetWindowBackgroundPixmap(server.dsp, panel->main_win, panel->hidden_pixmap);
 693                                 }
 694                                 else {
 695                                         if (panel->temp_pmap) XFreePixmap(server.dsp, panel->temp_pmap);
 696                                         panel->temp_pmap = XCreatePixmap(server.dsp, server.root_win, panel->area.width, panel->area.height, server.depth);
 697                                         refresh(&panel->area);
 698                                         XCopyArea(server.dsp, panel->temp_pmap, panel->main_win, server.gc, 0, 0, panel->area.width, panel->area.height, 0, 0);
 699                                 }
 700                         }
 701                         XFlush (server.dsp);
 702
 703                         panel = (Panel*)systray.area.panel;
 704                         if (refresh_systray && !panel->is_hidden) {
 705                                 refresh_systray = 0;
 706                                 // tint2 doen't draw systray icons. it just redraw background.
 707                                 XSetWindowBackgroundPixmap (server.dsp, panel->main_win, panel->temp_pmap);
 708                                 // force icon's refresh
 709                                 refresh_systray_icon();
 710                         }
 711                 }
 712
 713                 // thanks to AngryLlama for the timer
 714                 // Create a File Description Set containing x11_fd
 715                 FD_ZERO (&fdset);
 716                 FD_SET (x11_fd, &fdset);
 717                 update_next_timeout();
 718                 if (next_timeout.tv_sec >= 0 && next_timeout.tv_usec >= 0)
 719                         timeout = &next_timeout;
 720                 else
 721                         timeout = 0;
 722
 723                 // Wait for X Event or a Timer
 724                 if (select(x11_fd+1, &fdset, 0, 0, timeout) > 0) {
 725                         while (XPending (server.dsp)) {
 726                                 XNextEvent(server.dsp, &e);
 727
 728                                 panel = get_panel(e.xany.window);
 729                                 if (panel && panel_autohide) {
 730                                         if (e.type == EnterNotify)
 731                                                 autohide_trigger_show(panel);
 732                                         else if (e.type == LeaveNotify)
 733                                                 autohide_trigger_hide(panel);
 734                                         if (panel->is_hidden)
 735                                                 continue;   // discard further processing of this event because the panel is not visible yet
 736                                 }
 737
 738                                 switch (e.type) {
 739                                         case ButtonPress:
 740                                                 tooltip_hide(0);
 741                                                 event_button_press (&e);
 742                                                 break;
 743
 744                                         case ButtonRelease:
 745                                                 event_button_release(&e);
 746                                                 break;
 747
 748                                         case MotionNotify: {
 749                                                 if (!g_tooltip.enabled) break;
 750                                                 Panel* panel = get_panel(e.xmotion.window);
 751                                                 Area* area = click_area(panel, e.xmotion.x, e.xmotion.y);
 752                                                 if (area->_get_tooltip_text)
 753                                                         tooltip_trigger_show(area, panel, e.xmotion.x_root, e.xmotion.y_root);
 754                                                 else
 755                                                         tooltip_trigger_hide();
 756                                                 break;
 757                                         }
 758
 759                                         case LeaveNotify:
 760                                                 if (g_tooltip.enabled)
 761                                                         tooltip_trigger_hide();
 762                                                 break;
 763
 764                                         case Expose:
 765                                                 event_expose(&e);
 766                                                 break;
 767
 768                                         case PropertyNotify:
 769                                                 event_property_notify(&e);
 770                                                 break;
 771
 772                                         case ConfigureNotify:
 773                                                 event_configure_notify (e.xconfigure.window);
 774                                                 break;
 775
 776                                         case ReparentNotify:
 777                                                 if (!systray_enabled)
 778                                                         break;
 779                                                 panel = (Panel*)systray.area.panel;
 780                                                 if (e.xany.window == panel->main_win) // reparented to us
 781                                                         break;
 782                                                 // FIXME: 'reparent to us' badly detected => disabled
 783                                                 break;
 784                                         case UnmapNotify:
 785                                         case DestroyNotify:
 786                                                 if (e.xany.window == server.composite_manager) {
 787                                                         printf("Stop composite.\n");
 788                                                         //signal_pending = SIGUSR2;
 789                                                         server_init_visual();
 790                                                         break;
 791                                                 }
 792                                                 if (e.xany.window == g_tooltip.window || !systray.area.on_screen)
 793                                                         break;
 794                                                 for (it = systray.list_icons; it; it = g_slist_next(it)) {
 795                                                         if (((TrayWindow*)it->data)->tray_id == e.xany.window) {
 796                                                                 remove_icon((TrayWindow*)it->data);
 797                                                                 break;
 798                                                         }
 799                                                 }
 800                                         break;
 801
 802                                         case ClientMessage:
 803                                                 ev = &e;
 804                                                 if (ev->data.l[1] == server.atom._NET_WM_CM_S0) {
 805                                                         if (ev->data.l[2] == None)
 806                                                                 printf("Stop composite 2.\n");
 807                                                         else
 808                                                                 printf("Start composite.\n");
 809                                                         server_init_visual();
 810                                                         //signal_pending = SIGUSR2;
 811                                                 }
 812                                                 if (!systray.area.on_screen) break;
 813                                                 if (e.xclient.message_type == server.atom._NET_SYSTEM_TRAY_OPCODE && e.xclient.format == 32 && e.xclient.window == net_sel_win) {
 814                                                         net_message(&e.xclient);
 815                                                 }
 816                                                 else if (e.xclient.message_type == server.atom.XdndPosition) {
 817                                                         dnd_message(&e.xclient);
 818                                                 }
 819                                                 break;
 820
 821                                         default:
 822                                                 if (e.type == XDamageNotify+damage_event) {
 823                                                         // union needed to avoid strict-aliasing warnings by gcc
 824                                                         union { XEvent e; XDamageNotifyEvent de; } event_union = {.e=e};
 825                                                         TrayWindow *traywin;
 826                                                         GSList *l;
 827                                                         XDamageNotifyEvent* de = &event_union.de;
 828                                                         for (l = systray.list_icons; l ; l = l->next) {
 829                                                                 traywin = (TrayWindow*)l->data;
 830                                                                 if ( traywin->id == de->drawable && !de->more ) {
 831                                                                         systray_render_icon(traywin);
 832                                                                         break;
 833                                                                 }
 834                                                         }
 835                                                 }
 836                                 }
 837                         }
 838                 }
 839
 840                 callback_timeout_expired();
 841
 842                 switch (signal_pending) {
 843                 case SIGUSR1: // reload config file
 844                         signal_pending = 0;
 845                         init_config();
 846                         config_read_file (config_path);
 847                         init_panel();
 848                         cleanup_config();
 849                         break;
 850                 case SIGINT:
 851                 case SIGTERM:
 852                 case SIGHUP:
 853                         cleanup ();
 854                         return 0;
 855                 }
 856         }
 857 }
 858
 859