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
  46 void signal_handler(int sig)
  47 {
  48         // signal handler is light as it should be
  49         signal_pending = sig;
  50 }
  51
  52
  53 void init (int argc, char *argv[])
  54 {
  55         int i;
  56
  57         // set global data
  58         default_timeout();
  59         default_systray();
  60         memset(&server, 0, sizeof(Server_global));
  61         default_battery();
  62         default_clock();
  63         default_taskbar();
  64         default_tooltip();
  65         default_config();
  66
  67         // read options
  68         for (i = 1; i < argc; ++i) {
  69                 if (!strcmp(argv[i], "-h") || !strcmp(argv[i], "--help"))       {
  70                         printf("Usage: tint2 [-c] <config_file>\n");
  71                         exit(0);
  72                 }
  73                 if (!strcmp(argv[i], "-v") || !strcmp(argv[i], "--version"))    {
  74                         printf("tint2 version %s\n", VERSION_STRING);
  75                         exit(0);
  76                 }
  77                 if (!strcmp(argv[i], "-c")) {
  78                         i++;
  79                         if (i < argc)
  80                                 config_path = strdup(argv[i]);
  81                 }
  82                 if (!strcmp(argv[i], "-s"))     {
  83                         i++;
  84                         if (i < argc)
  85                                 snapshot_path = strdup(argv[i]);
  86                 }
  87         }
  88         // Set signal handler
  89         struct sigaction sa = { .sa_handler = signal_handler };
  90         sigaction(SIGUSR1, &sa, 0);
  91         sigaction(SIGINT, &sa, 0);
  92         sigaction(SIGTERM, &sa, 0);
  93         sigaction(SIGHUP, &sa, 0);
  94         signal(SIGCHLD, SIG_IGN);               // don't have to wait() after fork()
  95
  96         // BSD is too stupid to support pselect(), therefore we have to use select and hope that we do not
  97         // end up in a race condition there
  98         // block all signals, such that no race conditions occur before pselect in our main loop
  99 //      sigset_t block_mask;
 100 //      sigaddset(&block_mask, SIGINT);
 101 //      sigaddset(&block_mask, SIGTERM);
 102 //      sigaddset(&block_mask, SIGHUP);
 103 //      sigaddset(&block_mask, SIGUSR1);
 104 //      sigprocmask(SIG_BLOCK, &block_mask, 0);
 105 }
 106
 107 void init_X11()
 108 {
 109         server.dsp = XOpenDisplay (NULL);
 110         if (!server.dsp) {
 111                 fprintf(stderr, "tint2 exit : could not open display.\n");
 112                 exit(0);
 113         }
 114         server_init_atoms ();
 115         server.screen = DefaultScreen (server.dsp);
 116         server.root_win = RootWindow(server.dsp, server.screen);
 117         server.desktop = server_get_current_desktop ();
 118         server_init_visual();
 119         XSetErrorHandler ((XErrorHandler) server_catch_error);
 120
 121         imlib_context_set_display (server.dsp);
 122         imlib_context_set_visual (server.visual);
 123         imlib_context_set_colormap (server.colormap);
 124
 125         /* Catch events */
 126         XSelectInput (server.dsp, server.root_win, PropertyChangeMask|StructureNotifyMask);
 127
 128         setlocale (LC_ALL, "");
 129
 130         // load default icon
 131         gchar *path;
 132         const gchar * const *data_dirs;
 133         data_dirs = g_get_system_data_dirs ();
 134         int i;
 135         for (i = 0; data_dirs[i] != NULL; i++)  {
 136                 path = g_build_filename(data_dirs[i], "tint2", "default_icon.png", NULL);
 137                 if (g_file_test (path, G_FILE_TEST_EXISTS))
 138                         default_icon = imlib_load_image(path);
 139                 g_free(path);
 140         }
 141
 142         // get monitor and desktop config
 143         get_monitors();
 144         get_desktops();
 145 }
 146
 147
 148 void cleanup()
 149 {
 150 printf("*** cleanup()\n");
 151         cleanup_timeout();
 152         cleanup_systray();
 153         stop_net();
 154         cleanup_panel();
 155         cleanup_tooltip();
 156         cleanup_clock();
 157 #ifdef ENABLE_BATTERY
 158         cleanup_battery();
 159 #endif
 160         cleanup_config();
 161
 162         if (default_icon) {
 163                 imlib_context_set_image(default_icon);
 164                 imlib_free_image();
 165         }
 166
 167         cleanup_server();
 168         if (server.dsp) XCloseDisplay(server.dsp);
 169 }
 170
 171
 172 void get_snapshot(const char *path)
 173 {
 174         Panel *panel = &panel1[0];
 175
 176         if (panel->area.width > server.monitor[0].width)
 177                 panel->area.width = server.monitor[0].width;
 178
 179         panel->temp_pmap = XCreatePixmap(server.dsp, server.root_win, panel->area.width, panel->area.height, server.depth);
 180         refresh(&panel->area);
 181
 182         Imlib_Image img = NULL;
 183         imlib_context_set_drawable(panel->temp_pmap);
 184         img = imlib_create_image_from_drawable(0, 0, 0, panel->area.width, panel->area.height, 0);
 185
 186         imlib_context_set_image(img);
 187         if (!panel_horizontal) {
 188                 // rotate 90° vertical panel
 189                 imlib_image_flip_horizontal();
 190                 imlib_image_flip_diagonal();
 191         }
 192         imlib_save_image(path);
 193         imlib_free_image();
 194         XFreePixmap(server.dsp, panel->temp_pmap);
 195 }
 196
 197
 198 void window_action (Task *tsk, int action)
 199 {
 200         if (!tsk) return;
 201         int desk;
 202         switch (action) {
 203                 case CLOSE:
 204                         set_close (tsk->win);
 205                         break;
 206                 case TOGGLE:
 207                         set_active(tsk->win);
 208                         break;
 209                 case ICONIFY:
 210                         XIconifyWindow (server.dsp, tsk->win, server.screen);
 211                         break;
 212                 case TOGGLE_ICONIFY:
 213                         if (task_active && tsk->win == task_active->win)
 214                                 XIconifyWindow (server.dsp, tsk->win, server.screen);
 215                         else
 216                                 set_active (tsk->win);
 217                         break;
 218                 case SHADE:
 219                         window_toggle_shade (tsk->win);
 220                         break;
 221                 case MAXIMIZE_RESTORE:
 222                         window_maximize_restore (tsk->win);
 223                         break;
 224                 case MAXIMIZE:
 225                         window_maximize_restore (tsk->win);
 226                         break;
 227                 case RESTORE:
 228                         window_maximize_restore (tsk->win);
 229                         break;
 230                 case DESKTOP_LEFT:
 231                         if ( tsk->desktop == 0 ) break;
 232                         desk = tsk->desktop - 1;
 233                         windows_set_desktop(tsk->win, desk);
 234                         if (desk == server.desktop)
 235                                 set_active(tsk->win);
 236                         break;
 237                 case DESKTOP_RIGHT:
 238                         if (tsk->desktop == server.nb_desktop ) break;
 239                         desk = tsk->desktop + 1;
 240                         windows_set_desktop(tsk->win, desk);
 241                         if (desk == server.desktop)
 242                                 set_active(tsk->win);
 243                         break;
 244                 case NEXT_TASK:
 245                         if (task_active) {
 246                                 Task *tsk1;
 247                                 tsk1 = next_task(task_active);
 248                                 set_active(tsk1->win);
 249                         }
 250                         break;
 251                 case PREV_TASK:
 252                         if (task_active) {
 253                                 Task *tsk1;
 254                                 tsk1 = prev_task(task_active);
 255                                 set_active(tsk1->win);
 256                         }
 257         }
 258 }
 259
 260
 261 int tint2_handles_click(Panel* panel, XButtonEvent* e)
 262 {
 263         Task* task = click_task(panel, e->x, e->y);
 264         if (task) {
 265                 if(   (e->button == 1)
 266                          || (e->button == 2 && mouse_middle != 0)
 267                          || (e->button == 3 && mouse_right != 0)
 268                          || (e->button == 4 && mouse_scroll_up != 0)
 269                          || (e->button == 5 && mouse_scroll_down !=0) )
 270                 {
 271                         return 1;
 272                 }
 273                 else
 274                         return 0;
 275         }
 276         // no task clicked --> check if taskbar clicked
 277         Taskbar *tskbar = click_taskbar(panel, e->x, e->y);
 278         if (tskbar && e->button == 1 && panel_mode == MULTI_DESKTOP)
 279                 return 1;
 280         if (click_clock(panel, e->x, e->y)) {
 281                 if ( (e->button == 1 && clock_lclick_command) || (e->button == 3 && clock_rclick_command) )
 282                         return 1;
 283                 else
 284                         return 0;
 285         }
 286         return 0;
 287 }
 288
 289
 290 void forward_click(XEvent* e)
 291 {
 292         // forward the click to the desktop window (thanks conky)
 293         XUngrabPointer(server.dsp, e->xbutton.time);
 294         e->xbutton.window = server.root_win;
 295         // icewm doesn't open under the mouse.
 296         // and xfce doesn't open at all.
 297         e->xbutton.x = e->xbutton.x_root;
 298         e->xbutton.y = e->xbutton.y_root;
 299         //printf("**** %d, %d\n", e->xbutton.x, e->xbutton.y);
 300         //XSetInputFocus(server.dsp, e->xbutton.window, RevertToParent, e->xbutton.time);
 301         XSendEvent(server.dsp, e->xbutton.window, False, ButtonPressMask, e);
 302 }
 303
 304
 305 void event_button_press (XEvent *e)
 306 {
 307         Panel *panel = get_panel(e->xany.window);
 308         if (!panel) return;
 309
 310
 311         if (wm_menu && !tint2_handles_click(panel, &e->xbutton) ) {
 312                 forward_click(e);
 313                 return;
 314         }
 315         task_drag = click_task(panel, e->xbutton.x, e->xbutton.y);
 316
 317         XLowerWindow (server.dsp, panel->main_win);
 318 }
 319
 320 void event_button_motion_notify (XEvent *e)
 321 {
 322         Panel * panel = get_panel(e->xany.window);
 323         if(!panel || !task_drag)
 324                 return;
 325
 326         // Find the taskbar on the event's location
 327         Taskbar * event_taskbar = click_taskbar(panel, e->xbutton.x, e->xbutton.y);
 328         if(event_taskbar == NULL)
 329                 return;
 330
 331         // Find the task on the event's location
 332         Task * event_task = click_task(panel, e->xbutton.x, e->xbutton.y);
 333
 334         // If the event takes place on the same taskbar as the task being dragged
 335         if(event_taskbar == task_drag->area.parent)     {
 336                 // Swap the task_drag with the task on the event's location (if they differ)
 337                 if(event_task && event_task != task_drag) {
 338                         GSList * drag_iter = g_slist_find(event_taskbar->area.list, task_drag);
 339                         GSList * task_iter = g_slist_find(event_taskbar->area.list, event_task);
 340                         if(drag_iter && task_iter) {
 341                                 gpointer temp = task_iter->data;
 342                                 task_iter->data = drag_iter->data;
 343                                 drag_iter->data = temp;
 344                                 event_taskbar->area.resize = 1;
 345                                 panel_refresh = 1;
 346                                 task_dragged = 1;
 347                         }
 348                 }
 349         }
 350         else { // The event is on another taskbar than the task being dragged
 351                 if(task_drag->desktop == ALLDESKTOP || panel_mode != MULTI_DESKTOP)
 352                         return;
 353
 354                 Taskbar * drag_taskbar = (Taskbar*)task_drag->area.parent;
 355                 drag_taskbar->area.list = g_slist_remove(drag_taskbar->area.list, task_drag);
 356
 357                 if(event_taskbar->area.posx > drag_taskbar->area.posx || event_taskbar->area.posy > drag_taskbar->area.posy)
 358                         event_taskbar->area.list = g_slist_prepend(event_taskbar->area.list, task_drag);
 359                 else
 360                         event_taskbar->area.list = g_slist_append(event_taskbar->area.list, task_drag);
 361
 362                 // Move task to other desktop (but avoid the 'Window desktop changed' code in 'event_property_notify')
 363                 task_drag->area.parent = event_taskbar;
 364                 task_drag->desktop = event_taskbar->desktop;
 365
 366                 windows_set_desktop(task_drag->win, event_taskbar->desktop);
 367
 368                 event_taskbar->area.resize = 1;
 369                 drag_taskbar->area.resize = 1;
 370                 task_dragged = 1;
 371                 panel_refresh = 1;
 372         }
 373 }
 374
 375 void event_button_release (XEvent *e)
 376 {
 377         Panel *panel = get_panel(e->xany.window);
 378         if (!panel) return;
 379
 380         if (wm_menu && !tint2_handles_click(panel, &e->xbutton)) {
 381                 forward_click(e);
 382                 XLowerWindow (server.dsp, panel->main_win);
 383                 task_drag = 0;
 384                 return;
 385         }
 386
 387         int action = TOGGLE_ICONIFY;
 388         switch (e->xbutton.button) {
 389                 case 2:
 390                         action = mouse_middle;
 391                         break;
 392                 case 3:
 393                         action = mouse_right;
 394                         break;
 395                 case 4:
 396                         action = mouse_scroll_up;
 397                         break;
 398                 case 5:
 399                         action = mouse_scroll_down;
 400                         break;
 401                 case 6:
 402                         action = mouse_tilt_left;
 403                         break;
 404                 case 7:
 405                         action = mouse_tilt_right;
 406                         break;
 407         }
 408
 409         if ( click_clock(panel, e->xbutton.x, e->xbutton.y)) {
 410                 clock_action(e->xbutton.button);
 411                 XLowerWindow (server.dsp, panel->main_win);
 412                 task_drag = 0;
 413                 return;
 414         }
 415
 416         Taskbar *tskbar;
 417         if ( !(tskbar = click_taskbar(panel, e->xbutton.x, e->xbutton.y)) ) {
 418                 // TODO: check better solution to keep window below
 419                 XLowerWindow (server.dsp, panel->main_win);
 420                 task_drag = 0;
 421                 return;
 422         }
 423
 424         // drag and drop task
 425         if (task_dragged) {
 426                 task_drag = 0;
 427                 task_dragged = 0;
 428                 return;
 429         }
 430
 431         // switch desktop
 432         if (panel_mode == MULTI_DESKTOP) {
 433                 if (tskbar->desktop != server.desktop && action != CLOSE && action != DESKTOP_LEFT && action != DESKTOP_RIGHT)
 434                         set_desktop (tskbar->desktop);
 435         }
 436
 437         // action on task
 438         window_action( click_task(panel, e->xbutton.x, e->xbutton.y), action);
 439
 440         // to keep window below
 441         XLowerWindow (server.dsp, panel->main_win);
 442 }
 443
 444
 445 void event_property_notify (XEvent *e)
 446 {
 447         int i;
 448         Task *tsk;
 449         Window win = e->xproperty.window;
 450         Atom at = e->xproperty.atom;
 451
 452         if (win == server.root_win) {
 453                 if (!server.got_root_win) {
 454                         XSelectInput (server.dsp, server.root_win, PropertyChangeMask|StructureNotifyMask);
 455                         server.got_root_win = 1;
 456                 }
 457
 458                 // Change number of desktops
 459                 else if (at == server.atom._NET_NUMBER_OF_DESKTOPS) {
 460                         server.nb_desktop = server_get_number_of_desktop ();
 461                         cleanup_taskbar();
 462                         init_taskbar();
 463                         visible_object();
 464                         for (i=0 ; i < nb_panel ; i++) {
 465                                 panel1[i].area.resize = 1;
 466                         }
 467                         task_refresh_tasklist();
 468                         active_task();
 469                         panel_refresh = 1;
 470                 }
 471                 // Change desktop
 472                 else if (at == server.atom._NET_CURRENT_DESKTOP) {
 473                         int old_desktop = server.desktop;
 474                         server.desktop = server_get_current_desktop ();
 475                         for (i=0 ; i < nb_panel ; i++) {
 476                                 Panel *panel = &panel1[i];
 477                                 if (panel_mode == MULTI_DESKTOP && panel->g_taskbar.use_active) {
 478                                         // redraw both taskbar
 479                                         if (server.nb_desktop > old_desktop) {
 480                                                 // can happen if last desktop is deleted and we've been on the last desktop
 481                                                 panel->taskbar[old_desktop].area.bg = panel->g_taskbar.bg;
 482                                                 panel->taskbar[old_desktop].area.resize = 1;
 483                                         }
 484                                         panel->taskbar[server.desktop].area.bg = panel->g_taskbar.bg_active;
 485                                         panel->taskbar[server.desktop].area.resize = 1;
 486                                         panel_refresh = 1;
 487                                 }
 488                                 // check ALLDESKTOP task => resize taskbar
 489                                 Taskbar *tskbar;
 490                                 Task *tsk;
 491                                 GSList *l;
 492                                 if (server.nb_desktop > old_desktop) {
 493                                         tskbar = &panel->taskbar[old_desktop];
 494                                         for (l = tskbar->area.list; l ; l = l->next) {
 495                                                 tsk = l->data;
 496                                                 if (tsk->desktop == ALLDESKTOP) {
 497                                                         tsk->area.on_screen = 0;
 498                                                         tskbar->area.resize = 1;
 499                                                         panel_refresh = 1;
 500                                                 }
 501                                         }
 502                                 }
 503                                 tskbar = &panel->taskbar[server.desktop];
 504                                 for (l = tskbar->area.list; l ; l = l->next) {
 505                                         tsk = l->data;
 506                                         if (tsk->desktop == ALLDESKTOP) {
 507                                                 tsk->area.on_screen = 1;
 508                                                 tskbar->area.resize = 1;
 509                                         }
 510                                 }
 511                         }
 512                         if (panel_mode != MULTI_DESKTOP) {
 513                                 visible_object();
 514                         }
 515                 }
 516                 // Window list
 517                 else if (at == server.atom._NET_CLIENT_LIST) {
 518                         task_refresh_tasklist();
 519                         panel_refresh = 1;
 520                 }
 521                 // Change active
 522                 else if (at == server.atom._NET_ACTIVE_WINDOW) {
 523                         active_task();
 524                         panel_refresh = 1;
 525                 }
 526                 else if (at == server.atom._XROOTPMAP_ID) {
 527                         // change Wallpaper
 528                         for (i=0 ; i < nb_panel ; i++) {
 529                                 set_panel_background(&panel1[i]);
 530                         }
 531                         panel_refresh = 1;
 532                 }
 533         }
 534         else {
 535                 tsk = task_get_task (win);
 536                 if (!tsk) {
 537                         if (at != server.atom._NET_WM_STATE)
 538                                 return;
 539                         else {
 540                                 // xfce4 sends _NET_WM_STATE after minimized to tray, so we need to check if window is mapped
 541                                 // if it is mapped and not set as skip_taskbar, we must add it to our task list
 542                                 XWindowAttributes wa;
 543                                 XGetWindowAttributes(server.dsp, win, &wa);
 544                                 if (wa.map_state == IsViewable && !window_is_skip_taskbar(win)) {
 545                                         if ( (tsk = add_task(win)) )
 546                                                 panel_refresh = 1;
 547                                         else
 548                                                 return;
 549                                 }
 550                                 else
 551                                         return;
 552                         }
 553                 }
 554                 //printf("atom root_win = %s, %s\n", XGetAtomName(server.dsp, at), tsk->title);
 555
 556                 // Window title changed
 557                 if (at == server.atom._NET_WM_VISIBLE_NAME || at == server.atom._NET_WM_NAME || at == server.atom.WM_NAME) {
 558                         get_title(tsk);
 559                         if (g_tooltip.mapped && (g_tooltip.area == (Area*)tsk)) {
 560                                 tooltip_copy_text((Area*)tsk);
 561                                 tooltip_update();
 562                         }
 563                         panel_refresh = 1;
 564                 }
 565                 // Demand attention
 566                 else if (at == server.atom._NET_WM_STATE) {
 567                         if (window_is_urgent (win)) {
 568                                 add_urgent(tsk);
 569                         }
 570                         if (window_is_skip_taskbar(win)) {
 571                                 remove_task( tsk );
 572                                 panel_refresh = 1;
 573                         }
 574                 }
 575                 else if (at == server.atom.WM_STATE) {
 576                         // Iconic state
 577                         int state = (task_active && tsk->win == task_active->win ? TASK_ACTIVE : TASK_NORMAL);
 578                         if (window_is_iconified(win))
 579                                 state = TASK_ICONIFIED;
 580                         set_task_state(tsk, state);
 581                         panel_refresh = 1;
 582                 }
 583                 // Window icon changed
 584                 else if (at == server.atom._NET_WM_ICON) {
 585                         get_icon(tsk);
 586                         panel_refresh = 1;
 587                 }
 588                 // Window desktop changed
 589                 else if (at == server.atom._NET_WM_DESKTOP) {
 590                         int desktop = window_get_desktop (win);
 591                         //printf("  Window desktop changed %d, %d\n", tsk->desktop, desktop);
 592                         // bug in windowmaker : send unecessary 'desktop changed' when focus changed
 593                         if (desktop != tsk->desktop) {
 594                                 remove_task (tsk);
 595                                 tsk = add_task (win);
 596                                 active_task();
 597                                 panel_refresh = 1;
 598                         }
 599                 }
 600                 else if (at == server.atom.WM_HINTS) {
 601                         XWMHints* wmhints = XGetWMHints(server.dsp, win);
 602                         if (wmhints && wmhints->flags & XUrgencyHint) {
 603                                 add_urgent(tsk);
 604                         }
 605                         XFree(wmhints);
 606                 }
 607
 608                 if (!server.got_root_win) server.root_win = RootWindow (server.dsp, server.screen);
 609         }
 610 }
 611
 612
 613 void event_expose (XEvent *e)
 614 {
 615         Panel *panel;
 616         panel = get_panel(e->xany.window);
 617         if (!panel) return;
 618         // TODO : one panel_refresh per panel ?
 619         panel_refresh = 1;
 620 }
 621
 622
 623 void event_configure_notify (Window win)
 624 {
 625         // change in root window (xrandr)
 626         if (win == server.root_win) {
 627                 get_monitors();
 628                 init_config();
 629                 config_read_file (config_path);
 630                 init_panel();
 631                 cleanup_config();
 632                 return;
 633         }
 634
 635         // 'win' is a trayer icon
 636         TrayWindow *traywin;
 637         GSList *l;
 638         for (l = systray.list_icons; l ; l = l->next) {
 639                 traywin = (TrayWindow*)l->data;
 640                 if (traywin->tray_id == win) {
 641                         //printf("move tray %d\n", traywin->x);
 642                         XMoveResizeWindow(server.dsp, traywin->id, traywin->x, traywin->y, traywin->width, traywin->height);
 643                         XResizeWindow(server.dsp, traywin->tray_id, traywin->width, traywin->height);
 644                         panel_refresh = 1;
 645                         return;
 646                 }
 647         }
 648
 649         // 'win' move in another monitor
 650         if (nb_panel == 1) return;
 651         Task *tsk = task_get_task (win);
 652         if (!tsk) return;
 653
 654         Panel *p = tsk->area.panel;
 655         if (p->monitor != window_get_monitor (win)) {
 656                 remove_task (tsk);
 657                 tsk = add_task (win);
 658                 if (win == window_get_active ()) {
 659                         set_task_state(tsk, TASK_ACTIVE);
 660                         task_active = tsk;
 661                 }
 662                 panel_refresh = 1;
 663         }
 664 }
 665
 666
 667 void dnd_message(XClientMessageEvent *e)
 668 {
 669         Panel *panel = get_panel(e->window);
 670         int x, y, mapX, mapY;
 671         Window child;
 672         x = (e->data.l[2] >> 16) & 0xFFFF;
 673         y = e->data.l[2] & 0xFFFF;
 674         XTranslateCoordinates(server.dsp, server.root_win, e->window, x, y, &mapX, &mapY, &child);
 675         Task* task = click_task(panel, mapX, mapY);
 676         if (task) {
 677                 if (task->desktop != server.desktop )
 678                         set_desktop (task->desktop);
 679                 window_action(task, TOGGLE);
 680         }
 681
 682         // send XdndStatus event to get more XdndPosition events
 683         XClientMessageEvent se;
 684         se.type = ClientMessage;
 685         se.window = e->data.l[0];
 686         se.message_type = server.atom.XdndStatus;
 687         se.format = 32;
 688         se.data.l[0] = e->window;  // XID of the target window
 689         se.data.l[1] = 0;          // bit 0: accept drop    bit 1: send XdndPosition events if inside rectangle
 690         se.data.l[2] = 0;          // Rectangle x,y for which no more XdndPosition events
 691         se.data.l[3] = (1 << 16) | 1;  // Rectangle w,h for which no more XdndPosition events
 692         se.data.l[4] = None;       // None = drop will not be accepted
 693         XSendEvent(server.dsp, e->data.l[0], False, NoEventMask, (XEvent*)&se);
 694 }
 695
 696
 697 int main (int argc, char *argv[])
 698 {
 699         XEvent e;
 700         XClientMessageEvent *ev;
 701         fd_set fdset;
 702         int x11_fd, i;
 703         Panel *panel;
 704         GSList *it;
 705         struct timeval* timeout;
 706
 707         init (argc, argv);
 708         init_config();
 709         init_X11();
 710
 711         i = 0;
 712         if (config_path)
 713                 i = config_read_file (config_path);
 714         else
 715                 i = config_read ();
 716         if (!i) {
 717                 fprintf(stderr, "usage: tint2 [-c] <config_file>\n");
 718                 cleanup();
 719                 exit(1);
 720         }
 721
 722         init_panel();
 723         cleanup_config();
 724         if (snapshot_path) {
 725                 get_snapshot(snapshot_path);
 726                 cleanup();
 727                 exit(0);
 728         }
 729
 730         int damage_event, damage_error;
 731         XDamageQueryExtension(server.dsp, &damage_event, &damage_error);
 732         x11_fd = ConnectionNumber(server.dsp);
 733         XSync(server.dsp, False);
 734
 735 //      sigset_t empty_mask;
 736 //      sigemptyset(&empty_mask);
 737
 738         while (1) {
 739                 if (panel_refresh) {
 740                         panel_refresh = 0;
 741
 742                         for (i=0 ; i < nb_panel ; i++) {
 743                                 panel = &panel1[i];
 744
 745                                 if (panel->is_hidden) {
 746                                         XCopyArea(server.dsp, panel->hidden_pixmap, panel->main_win, server.gc, 0, 0, panel->hidden_width, panel->hidden_height, 0, 0);
 747                                         XSetWindowBackgroundPixmap(server.dsp, panel->main_win, panel->hidden_pixmap);
 748                                 }
 749                                 else {
 750                                         if (panel->temp_pmap) XFreePixmap(server.dsp, panel->temp_pmap);
 751                                         panel->temp_pmap = XCreatePixmap(server.dsp, server.root_win, panel->area.width, panel->area.height, server.depth);
 752                                         refresh(&panel->area);
 753                                         XCopyArea(server.dsp, panel->temp_pmap, panel->main_win, server.gc, 0, 0, panel->area.width, panel->area.height, 0, 0);
 754                                 }
 755                         }
 756                         XFlush (server.dsp);
 757
 758                         panel = (Panel*)systray.area.panel;
 759                         if (refresh_systray && panel && !panel->is_hidden) {
 760                                 refresh_systray = 0;
 761                                 // tint2 doen't draw systray icons. it just redraw background.
 762                                 XSetWindowBackgroundPixmap (server.dsp, panel->main_win, panel->temp_pmap);
 763                                 // force icon's refresh
 764                                 refresh_systray_icon();
 765                         }
 766                 }
 767
 768                 // thanks to AngryLlama for the timer
 769                 // Create a File Description Set containing x11_fd
 770                 FD_ZERO (&fdset);
 771                 FD_SET (x11_fd, &fdset);
 772                 update_next_timeout();
 773                 if (next_timeout.tv_sec >= 0 && next_timeout.tv_usec >= 0)
 774                         timeout = &next_timeout;
 775                 else
 776                         timeout = 0;
 777
 778                 // Wait for X Event or a Timer
 779                 if (select(x11_fd+1, &fdset, 0, 0, timeout) > 0) {
 780                         while (XPending (server.dsp)) {
 781                                 XNextEvent(server.dsp, &e);
 782
 783                                 panel = get_panel(e.xany.window);
 784                                 if (panel && panel_autohide) {
 785                                         if (e.type == EnterNotify)
 786                                                 autohide_trigger_show(panel);
 787                                         else if (e.type == LeaveNotify)
 788                                                 autohide_trigger_hide(panel);
 789                                         if (panel->is_hidden)
 790                                                 continue;   // discard further processing of this event because the panel is not visible yet
 791                                 }
 792
 793                                 switch (e.type) {
 794                                         case ButtonPress:
 795                                                 tooltip_hide(0);
 796                                                 event_button_press (&e);
 797                                                 break;
 798
 799                                         case ButtonRelease:
 800                                                 event_button_release(&e);
 801                                                 break;
 802
 803                                         case MotionNotify: {
 804                                                 unsigned int button_mask = Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask;
 805                                                 if (e.xmotion.state & button_mask)
 806                                                         event_button_motion_notify (&e);
 807
 808                                                 if (!g_tooltip.enabled) break;
 809                                                 Panel* panel = get_panel(e.xmotion.window);
 810                                                 Area* area = click_area(panel, e.xmotion.x, e.xmotion.y);
 811                                                 if (area->_get_tooltip_text)
 812                                                         tooltip_trigger_show(area, panel, e.xmotion.x_root, e.xmotion.y_root);
 813                                                 else
 814                                                         tooltip_trigger_hide();
 815                                                 break;
 816                                         }
 817
 818                                         case LeaveNotify:
 819                                                 if (g_tooltip.enabled)
 820                                                         tooltip_trigger_hide();
 821                                                 break;
 822
 823                                         case Expose:
 824                                                 event_expose(&e);
 825                                                 break;
 826
 827                                         case PropertyNotify:
 828                                                 event_property_notify(&e);
 829                                                 break;
 830
 831                                         case ConfigureNotify:
 832                                                 event_configure_notify (e.xconfigure.window);
 833                                                 break;
 834
 835                                         case ReparentNotify:
 836                                                 if (!systray_enabled)
 837                                                         break;
 838                                                 panel = (Panel*)systray.area.panel;
 839                                                 if (e.xany.window == panel->main_win) // reparented to us
 840                                                         break;
 841                                                 // FIXME: 'reparent to us' badly detected => disabled
 842                                                 break;
 843                                         case UnmapNotify:
 844                                         case DestroyNotify:
 845                                                 if (e.xany.window == server.composite_manager) {
 846                                                         // TODO: Stop real_transparency
 847                                                         //signal_pending = SIGUSR2;
 848                                                         break;
 849                                                 }
 850                                                 if (e.xany.window == g_tooltip.window || !systray.area.on_screen)
 851                                                         break;
 852                                                 for (it = systray.list_icons; it; it = g_slist_next(it)) {
 853                                                         if (((TrayWindow*)it->data)->tray_id == e.xany.window) {
 854                                                                 remove_icon((TrayWindow*)it->data);
 855                                                                 break;
 856                                                         }
 857                                                 }
 858                                         break;
 859
 860                                         case ClientMessage:
 861                                                 ev = &e.xclient;
 862                                                 if (ev->data.l[1] == server.atom._NET_WM_CM_S0) {
 863                                                         if (ev->data.l[2] == None)
 864                                                                 // TODO: Stop real_transparency
 865                                                                 //signal_pending = SIGUSR2;
 866                                                                 ;
 867                                                         else
 868                                                                 // TODO: Start real_transparency
 869                                                                 //signal_pending = SIGUSR2;
 870                                                                 ;
 871                                                 }
 872                                                 if (!systray.area.on_screen) break;
 873                                                 if (e.xclient.message_type == server.atom._NET_SYSTEM_TRAY_OPCODE && e.xclient.format == 32 && e.xclient.window == net_sel_win) {
 874                                                         net_message(&e.xclient);
 875                                                 }
 876                                                 else if (e.xclient.message_type == server.atom.XdndPosition) {
 877                                                         dnd_message(&e.xclient);
 878                                                 }
 879                                                 break;
 880
 881                                         default:
 882                                                 if (e.type == XDamageNotify+damage_event) {
 883                                                         // union needed to avoid strict-aliasing warnings by gcc
 884                                                         union { XEvent e; XDamageNotifyEvent de; } event_union = {.e=e};
 885                                                         TrayWindow *traywin;
 886                                                         GSList *l;
 887                                                         XDamageNotifyEvent* de = &event_union.de;
 888                                                         for (l = systray.list_icons; l ; l = l->next) {
 889                                                                 traywin = (TrayWindow*)l->data;
 890                                                                 if ( traywin->id == de->drawable ) {
 891                                                                         systray_render_icon(traywin);
 892                                                                         break;
 893                                                                 }
 894                                                         }
 895                                                 }
 896                                 }
 897                         }
 898                 }
 899
 900                 callback_timeout_expired();
 901
 902                 switch (signal_pending) {
 903                 case SIGUSR1: // reload config file
 904                         signal_pending = 0;
 905                         init_config();
 906                         config_read_file (config_path);
 907                         init_panel();
 908                         cleanup_config();
 909                         break;
 910                 case SIGINT:
 911                 case SIGTERM:
 912                 case SIGHUP:
 913                         cleanup ();
 914                         return 0;
 915                 }
 916         }
 917 }
 918
 919