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