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         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 == 2 && 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                 task_drag = 0;
 314                 return;
 315         }
 316
 317         int action = TOGGLE_ICONIFY;
 318         switch (e->xbutton.button) {
 319                 case 2:
 320                         action = mouse_middle;
 321                         break;
 322                 case 3:
 323                         action = mouse_right;
 324                         break;
 325                 case 4:
 326                         action = mouse_scroll_up;
 327                         break;
 328                 case 5:
 329                         action = mouse_scroll_down;
 330                         break;
 331                 case 6:
 332                         action = mouse_tilt_left;
 333                         break;
 334                 case 7:
 335                         action = mouse_tilt_right;
 336                         break;
 337         }
 338
 339         if ( click_clock(panel, e->xbutton.x, e->xbutton.y)) {
 340                 clock_action(e->xbutton.button);
 341                 XLowerWindow (server.dsp, panel->main_win);
 342                 task_drag = 0;
 343                 return;
 344         }
 345
 346         Taskbar *tskbar;
 347         if ( !(tskbar = click_taskbar(panel, e->xbutton.x, e->xbutton.y)) ) {
 348                 // TODO: check better solution to keep window below
 349                 XLowerWindow (server.dsp, panel->main_win);
 350                 task_drag = 0;
 351                 return;
 352         }
 353
 354         // drag and drop task
 355         if (task_drag) {
 356                 if (tskbar != task_drag->area.parent && action == TOGGLE_ICONIFY) {
 357                         if (task_drag->desktop != ALLDESKTOP && panel_mode == MULTI_DESKTOP) {
 358                                 windows_set_desktop(task_drag->win, tskbar->desktop);
 359                                 if (tskbar->desktop == server.desktop)
 360                                         set_active(task_drag->win);
 361                                 task_drag = 0;
 362                         }
 363                         return;
 364                 }
 365                 else task_drag = 0;
 366         }
 367
 368         // switch desktop
 369         if (panel_mode == MULTI_DESKTOP) {
 370                 if (tskbar->desktop != server.desktop && action != CLOSE && action != DESKTOP_LEFT && action != DESKTOP_RIGHT)
 371                         set_desktop (tskbar->desktop);
 372         }
 373
 374         // action on task
 375         window_action( click_task(panel, e->xbutton.x, e->xbutton.y), action);
 376
 377         // to keep window below
 378         XLowerWindow (server.dsp, panel->main_win);
 379 }
 380
 381
 382 void event_property_notify (XEvent *e)
 383 {
 384         int i, j;
 385         Task *tsk;
 386         Window win = e->xproperty.window;
 387         Atom at = e->xproperty.atom;
 388
 389         if (win == server.root_win) {
 390                 if (!server.got_root_win) {
 391                         XSelectInput (server.dsp, server.root_win, PropertyChangeMask|StructureNotifyMask);
 392                         server.got_root_win = 1;
 393                 }
 394
 395                 // Change number of desktops
 396                 else if (at == server.atom._NET_NUMBER_OF_DESKTOPS) {
 397                         server.nb_desktop = server_get_number_of_desktop ();
 398                         cleanup_taskbar();
 399                         init_taskbar();
 400                         visible_object();
 401                         for (i=0 ; i < nb_panel ; i++) {
 402                                 panel1[i].area.resize = 1;
 403                         }
 404                         task_refresh_tasklist();
 405                         active_task();
 406                         panel_refresh = 1;
 407                 }
 408                 // Change desktop
 409                 else if (at == server.atom._NET_CURRENT_DESKTOP) {
 410                         int old_desktop = server.desktop;
 411                         server.desktop = server_get_current_desktop ();
 412                         for (i=0 ; i < nb_panel ; i++) {
 413                                 Panel *panel = &panel1[i];
 414                                 if (panel_mode == MULTI_DESKTOP && panel->g_taskbar.use_active) {
 415                                         // redraw both taskbar
 416                                         if (server.nb_desktop > old_desktop) {
 417                                                 // can happen if last desktop is deleted and we've been on the last desktop
 418                                                 panel->taskbar[old_desktop].area.bg = panel->g_taskbar.bg;
 419                                                 panel->taskbar[old_desktop].area.resize = 1;
 420                                         }
 421                                         panel->taskbar[server.desktop].area.bg = panel->g_taskbar.bg_active;
 422                                         panel->taskbar[server.desktop].area.resize = 1;
 423                                         panel_refresh = 1;
 424                                 }
 425                                 // check ALLDESKTOP task => resize taskbar
 426                                 Taskbar *tskbar;
 427                                 Task *tsk;
 428                                 GSList *l;
 429                                 if (server.nb_desktop > old_desktop) {
 430                                         tskbar = &panel->taskbar[old_desktop];
 431                                         for (l = tskbar->area.list; l ; l = l->next) {
 432                                                 tsk = l->data;
 433                                                 if (tsk->desktop == ALLDESKTOP) {
 434                                                         tsk->area.on_screen = 0;
 435                                                         tskbar->area.resize = 1;
 436                                                         panel_refresh = 1;
 437                                                 }
 438                                         }
 439                                 }
 440                                 tskbar = &panel->taskbar[server.desktop];
 441                                 for (l = tskbar->area.list; l ; l = l->next) {
 442                                         tsk = l->data;
 443                                         if (tsk->desktop == ALLDESKTOP) {
 444                                                 tsk->area.on_screen = 1;
 445                                                 tskbar->area.resize = 1;
 446                                         }
 447                                 }
 448                         }
 449                         if (panel_mode != MULTI_DESKTOP) {
 450                                 visible_object();
 451                         }
 452                 }
 453                 // Window list
 454                 else if (at == server.atom._NET_CLIENT_LIST) {
 455                         task_refresh_tasklist();
 456                         panel_refresh = 1;
 457                 }
 458                 // Change active
 459                 else if (at == server.atom._NET_ACTIVE_WINDOW) {
 460                         active_task();
 461                         panel_refresh = 1;
 462                 }
 463                 else if (at == server.atom._XROOTPMAP_ID) {
 464                         // change Wallpaper
 465                         for (i=0 ; i < nb_panel ; i++) {
 466                                 set_panel_background(&panel1[i]);
 467                         }
 468                         panel_refresh = 1;
 469                 }
 470         }
 471         else {
 472                 tsk = task_get_task (win);
 473                 if (!tsk) {
 474                         if (at != server.atom._NET_WM_STATE)
 475                                 return;
 476                         else {
 477                                 // xfce4 sends _NET_WM_STATE after minimized to tray, so we need to check if window is mapped
 478                                 // if it is mapped and not set as skip_taskbar, we must add it to our task list
 479                                 XWindowAttributes wa;
 480                                 XGetWindowAttributes(server.dsp, win, &wa);
 481                                 if (wa.map_state == IsViewable && !window_is_skip_taskbar(win)) {
 482                                         if ( (tsk = add_task(win)) )
 483                                                 panel_refresh = 1;
 484                                         else
 485                                                 return;
 486                                 }
 487                                 else
 488                                         return;
 489                         }
 490                 }
 491                 //printf("atom root_win = %s, %s\n", XGetAtomName(server.dsp, at), tsk->title);
 492
 493                 // Window title changed
 494                 if (at == server.atom._NET_WM_VISIBLE_NAME || at == server.atom._NET_WM_NAME || at == server.atom.WM_NAME) {
 495                         Task *tsk2;
 496                         GSList *l0;
 497                         get_title(tsk);
 498                         // changed other tsk->title
 499                         for (i=0 ; i < nb_panel ; i++) {
 500                                 for (j=0 ; j < panel1[i].nb_desktop ; j++) {
 501                                         for (l0 = panel1[i].taskbar[j].area.list; l0 ; l0 = l0->next) {
 502                                                 tsk2 = l0->data;
 503                                                 if (tsk->win == tsk2->win && tsk != tsk2) {
 504                                                         tsk2->title = tsk->title;
 505                                                         tsk2->area.redraw = 1;
 506                                                 }
 507                                         }
 508                                 }
 509                         }
 510                         panel_refresh = 1;
 511                 }
 512                 // Demand attention
 513                 else if (at == server.atom._NET_WM_STATE) {
 514                         if (window_is_urgent (win)) {
 515                                 add_urgent(tsk);
 516                         }
 517                         if (window_is_skip_taskbar(win)) {
 518                                 remove_task( tsk );
 519                                 panel_refresh = 1;
 520                         }
 521                 }
 522                 else if (at == server.atom.WM_STATE) {
 523                         // Iconic state
 524                         int state = task_active == tsk ? TASK_ACTIVE : TASK_NORMAL;
 525                         if (window_is_iconified(win))
 526                                 state = TASK_ICONIFIED;
 527                         GSList* task_list = task_get_tasks(win);
 528                         GSList* it = task_list;
 529                         while (it) {
 530                                 Task* t = it->data;
 531                                 set_task_state(t, state);
 532                                 it = it->next;
 533                         }
 534                         g_slist_free(task_list);
 535                         panel_refresh = 1;
 536                 }
 537                 // Window icon changed
 538                 else if (at == server.atom._NET_WM_ICON) {
 539                         get_icon(tsk);
 540                         Task *tsk2;
 541                         GSList* task_list = task_get_tasks(tsk->win);
 542                         GSList *l0 = task_list;
 543                         while (l0) {
 544                                 tsk2 = l0->data;
 545                                 if (tsk2 !=  tsk) {
 546                                         tsk2->icon_width = tsk->icon_width;
 547                                         tsk2->icon_height = tsk->icon_height;
 548                                         int k=0;
 549                                         for ( ; k<TASK_STATE_COUNT; ++k)
 550                                                 tsk2->icon[k] = tsk->icon[k];
 551                                         tsk2->area.redraw = 1;
 552                                 }
 553                                 l0 = l0->next;
 554                         }
 555                         g_slist_free(task_list);
 556                         panel_refresh = 1;
 557                 }
 558                 // Window desktop changed
 559                 else if (at == server.atom._NET_WM_DESKTOP) {
 560                         int desktop = window_get_desktop (win);
 561                         //printf("  Window desktop changed %d, %d\n", tsk->desktop, desktop);
 562                         // bug in windowmaker : send unecessary 'desktop changed' when focus changed
 563                         if (desktop != tsk->desktop) {
 564                                 remove_task (tsk);
 565                                 tsk = add_task (win);
 566                                 active_task();
 567                                 panel_refresh = 1;
 568                         }
 569                 }
 570                 else if (at == server.atom.WM_HINTS) {
 571                         XWMHints* wmhints = XGetWMHints(server.dsp, win);
 572                         if (wmhints && wmhints->flags & XUrgencyHint) {
 573                                 add_urgent(tsk);
 574                         }
 575                         XFree(wmhints);
 576                 }
 577
 578                 if (!server.got_root_win) server.root_win = RootWindow (server.dsp, server.screen);
 579         }
 580 }
 581
 582
 583 void event_expose (XEvent *e)
 584 {
 585         Panel *panel;
 586         panel = get_panel(e->xany.window);
 587         if (!panel) return;
 588         // TODO : one panel_refresh per panel ?
 589         panel_refresh = 1;
 590 }
 591
 592
 593 void event_configure_notify (Window win)
 594 {
 595         // change in root window (xrandr)
 596         if (win == server.root_win) {
 597                 get_monitors();
 598                 init_config();
 599                 config_read_file (config_path);
 600                 init_panel();
 601                 cleanup_config();
 602                 return;
 603         }
 604
 605         // 'win' is a trayer icon
 606         TrayWindow *traywin;
 607         GSList *l;
 608         for (l = systray.list_icons; l ; l = l->next) {
 609                 traywin = (TrayWindow*)l->data;
 610                 if (traywin->tray_id == win) {
 611                         //printf("move tray %d\n", traywin->x);
 612                         XMoveResizeWindow(server.dsp, traywin->id, traywin->x, traywin->y, traywin->width, traywin->height);
 613                         XResizeWindow(server.dsp, traywin->tray_id, traywin->width, traywin->height);
 614                         panel_refresh = 1;
 615                         return;
 616                 }
 617         }
 618
 619         // 'win' move in another monitor
 620         if (nb_panel == 1) return;
 621         Task *tsk = task_get_task (win);
 622         if (!tsk) return;
 623
 624         Panel *p = tsk->area.panel;
 625         if (p->monitor != window_get_monitor (win)) {
 626                 remove_task (tsk);
 627                 add_task (win);
 628                 if (win == window_get_active ()) {
 629                         GSList* task_list = task_get_tasks(win);
 630                         GSList* it = task_list;
 631                         while (it) {
 632                                 Task *tsk = it->data;
 633                                 tsk->current_state = TASK_ACTIVE;
 634                                 task_active = tsk;
 635                                 it = task_list->next;
 636                         }
 637                         g_slist_free(task_list);
 638                 }
 639                 panel_refresh = 1;
 640         }
 641 }
 642
 643
 644 void dnd_message(XClientMessageEvent *e)
 645 {
 646         Panel *panel = get_panel(e->window);
 647         int x, y, mapX, mapY;
 648         Window child;
 649         x = (e->data.l[2] >> 16) & 0xFFFF;
 650         y = e->data.l[2] & 0xFFFF;
 651         XTranslateCoordinates(server.dsp, server.root_win, e->window, x, y, &mapX, &mapY, &child);
 652         Task* task = click_task(panel, mapX, mapY);
 653         if (task) {
 654                 if (task->desktop != server.desktop )
 655                         set_desktop (task->desktop);
 656                 window_action(task, TOGGLE);
 657         }
 658
 659         // send XdndStatus event to get more XdndPosition events
 660         XClientMessageEvent se;
 661         se.type = ClientMessage;
 662         se.window = e->data.l[0];
 663         se.message_type = server.atom.XdndStatus;
 664         se.format = 32;
 665         se.data.l[0] = e->window;  // XID of the target window
 666         se.data.l[1] = 0;          // bit 0: accept drop    bit 1: send XdndPosition events if inside rectangle
 667         se.data.l[2] = 0;          // Rectangle x,y for which no more XdndPosition events
 668         se.data.l[3] = (1 << 16) | 1;  // Rectangle w,h for which no more XdndPosition events
 669         se.data.l[4] = None;       // None = drop will not be accepted
 670         XSendEvent(server.dsp, e->data.l[0], False, NoEventMask, (XEvent*)&se);
 671 }
 672
 673
 674 int main (int argc, char *argv[])
 675 {
 676         XEvent e;
 677         fd_set fdset;
 678         int x11_fd, i;
 679         Panel *panel;
 680         GSList *it;
 681         struct timeval* timeout;
 682
 683         init (argc, argv);
 684         init_config();
 685         i = 0;
 686         if (config_path)
 687                 i = config_read_file (config_path);
 688         else
 689                 i = config_read ();
 690         if (!i) {
 691                 fprintf(stderr, "usage: tint2 [-c] <config_file>\n");
 692                 cleanup();
 693                 exit(1);
 694         }
 695
 696         init_X11();
 697         init_panel();
 698         cleanup_config();
 699         if (snapshot_path) {
 700                 get_snapshot(snapshot_path);
 701                 cleanup();
 702                 exit(0);
 703         }
 704
 705         int damage_event, damage_error;
 706         XDamageQueryExtension(server.dsp, &damage_event, &damage_error);
 707         x11_fd = ConnectionNumber(server.dsp);
 708         XSync(server.dsp, False);
 709
 710 //      sigset_t empty_mask;
 711 //      sigemptyset(&empty_mask);
 712
 713         while (1) {
 714                 if (panel_refresh) {
 715                         panel_refresh = 0;
 716
 717                         // QUESTION: do we need this first refresh_systray, because we check refresh_systray once again later...
 718                         if (refresh_systray) {
 719                                 panel = (Panel*)systray.area.panel;
 720                                 XSetWindowBackgroundPixmap (server.dsp, panel->main_win, None);
 721                         }
 722                         for (i=0 ; i < nb_panel ; i++) {
 723                                 panel = &panel1[i];
 724
 725                                 if (panel->is_hidden)
 726                                         XCopyArea(server.dsp, panel->hidden_pixmap, panel->main_win, server.gc, 0, 0, panel->hidden_width, panel->hidden_height, 0, 0);
 727                                 else {
 728                                         if (panel->temp_pmap) XFreePixmap(server.dsp, panel->temp_pmap);
 729                                         panel->temp_pmap = XCreatePixmap(server.dsp, server.root_win, panel->area.width, panel->area.height, server.depth);
 730                                         refresh(&panel->area);
 731                                         XCopyArea(server.dsp, panel->temp_pmap, panel->main_win, server.gc, 0, 0, panel->area.width, panel->area.height, 0, 0);
 732                                 }
 733                         }
 734                         XFlush (server.dsp);
 735
 736                         panel = (Panel*)systray.area.panel;
 737                         if (refresh_systray && !panel->is_hidden) {
 738                                 refresh_systray = 0;
 739                                 panel = (Panel*)systray.area.panel;
 740                                 // tint2 doen't draw systray icons. it just redraw background.
 741                                 XSetWindowBackgroundPixmap (server.dsp, panel->main_win, panel->temp_pmap);
 742                                 // force icon's refresh
 743                                 refresh_systray_icon();
 744                         }
 745                 }
 746
 747                 // thanks to AngryLlama for the timer
 748                 // Create a File Description Set containing x11_fd
 749                 FD_ZERO (&fdset);
 750                 FD_SET (x11_fd, &fdset);
 751                 update_next_timeout();
 752                 if (next_timeout.tv_sec >= 0 && next_timeout.tv_usec >= 0)
 753                         timeout = &next_timeout;
 754                 else
 755                         timeout = 0;
 756
 757                 // Wait for X Event or a Timer
 758                 if (select(x11_fd+1, &fdset, 0, 0, timeout) > 0) {
 759                         while (XPending (server.dsp)) {
 760                                 XNextEvent(server.dsp, &e);
 761
 762                                 panel = get_panel(e.xany.window);
 763                                 if (panel && panel_autohide) {
 764                                         if (e.type == EnterNotify)
 765                                                 autohide_trigger_show(panel);
 766                                         else if (e.type == LeaveNotify)
 767                                                 autohide_trigger_hide(panel);
 768                                         if (panel->is_hidden)
 769                                                 continue;   // discard further processing of this event because the panel is not visible yet
 770                                 }
 771
 772                                 switch (e.type) {
 773                                         case ButtonPress:
 774                                                 tooltip_hide(0);
 775                                                 event_button_press (&e);
 776                                                 break;
 777
 778                                         case ButtonRelease:
 779                                                 event_button_release(&e);
 780                                                 break;
 781
 782                                         case MotionNotify: {
 783                                                 if (!g_tooltip.enabled) break;
 784                                                 Panel* panel = get_panel(e.xmotion.window);
 785                                                 Area* area = click_area(panel, e.xmotion.x, e.xmotion.y);
 786                                                 if (area->_get_tooltip_text)
 787                                                         tooltip_trigger_show(area, panel, e.xmotion.x_root, e.xmotion.y_root);
 788                                                 else
 789                                                         tooltip_trigger_hide();
 790                                                 break;
 791                                         }
 792
 793                                         case LeaveNotify:
 794                                                 if (g_tooltip.enabled)
 795                                                         tooltip_trigger_hide();
 796                                                 break;
 797
 798                                         case Expose:
 799                                                 event_expose(&e);
 800                                                 break;
 801
 802                                         case MapNotify:
 803                                                 if (e.xany.window == g_tooltip.window)
 804                                                         tooltip_update();
 805                                                 break;
 806
 807                                         case PropertyNotify:
 808                                                 event_property_notify(&e);
 809                                                 break;
 810
 811                                         case ConfigureNotify:
 812                                                 event_configure_notify (e.xconfigure.window);
 813                                                 break;
 814
 815                                         case ReparentNotify:
 816                                                 if (!systray_enabled)
 817                                                         break;
 818                                                 panel = (Panel*)systray.area.panel;
 819                                                 if (e.xany.window == panel->main_win) // reparented to us
 820                                                         break;
 821                                                 // FIXME: 'reparent to us' badly detected => disabled
 822                                                 break;
 823                                         case UnmapNotify:
 824                                         case DestroyNotify:
 825                                                 if (e.xany.window == g_tooltip.window || !systray.area.on_screen)
 826                                                         break;
 827                                                 for (it = systray.list_icons; it; it = g_slist_next(it)) {
 828                                                         if (((TrayWindow*)it->data)->tray_id == e.xany.window) {
 829                                                                 remove_icon((TrayWindow*)it->data);
 830                                                                 break;
 831                                                         }
 832                                                 }
 833                                         break;
 834
 835                                         case ClientMessage:
 836                                                 if (!systray.area.on_screen) break;
 837                                                 if (e.xclient.message_type == server.atom._NET_SYSTEM_TRAY_OPCODE && e.xclient.format == 32 && e.xclient.window == net_sel_win) {
 838                                                         net_message(&e.xclient);
 839                                                 }
 840                                                 else if (e.xclient.message_type == server.atom.XdndPosition) {
 841                                                         dnd_message(&e.xclient);
 842                                                 }
 843                                                 break;
 844
 845                                         default:
 846                                                 if (e.type == XDamageNotify+damage_event) {
 847                                                         TrayWindow *traywin;
 848                                                         GSList *l;
 849                                                         XDamageNotifyEvent* de = (XDamageNotifyEvent*)&e;
 850                                                         for (l = systray.list_icons; l ; l = l->next) {
 851                                                                 traywin = (TrayWindow*)l->data;
 852                                                                 if ( traywin->id == de->drawable && !de->more ) {
 853                                                                         systray_render_icon(traywin);
 854                                                                         break;
 855                                                                 }
 856                                                         }
 857                                                 }
 858                                 }
 859                         }
 860                 }
 861
 862                 callback_timeout_expired();
 863
 864                 switch (signal_pending) {
 865                 case SIGUSR1: // reload config file
 866                         signal_pending = 0;
 867                         init_config();
 868                         config_read_file (config_path);
 869                         init_panel();
 870                         cleanup_config();
 871                         break;
 872                 case SIGINT:
 873                 case SIGTERM:
 874                 case SIGHUP:
 875                         cleanup ();
 876                         return 0;
 877                 }
 878         }
 879 }
 880
 881