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 <sys/time.h>
  23 #include <unistd.h>
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <X11/Xutil.h>
  28 #include <X11/Xatom.h>
  29 #include <X11/Xlocale.h>
  30 #include <Imlib2.h>
  31 #include <signal.h>
  32
  33 #include "server.h"
  34 #include "window.h"
  35 #include "config.h"
  36 #include "task.h"
  37 #include "taskbar.h"
  38 #include "panel.h"
  39 #include "docker.h"
  40 #include "net.h"
  41 #include "kde.h"
  42
  43
  44 void signal_handler(int sig)
  45 {
  46         // signal handler is light as it should be
  47         panel.signal_pending = sig;
  48 }
  49
  50
  51 void init ()
  52 {
  53         // Set signal handler
  54    signal(SIGUSR1, signal_handler);
  55    signal(SIGINT, signal_handler);
  56    signal(SIGTERM, signal_handler);
  57
  58    // set global data
  59    memset(&panel, 0, sizeof(Panel));
  60    memset(&server, 0, sizeof(Server_global));
  61    memset(&g_task, 0, sizeof(Global_task));
  62    memset(&g_taskbar, 0, sizeof(Area));
  63    panel.clock.area.draw_foreground = draw_foreground_clock;
  64    g_task.area.draw_foreground = draw_foreground_task;
  65    window.main_win = 0;
  66
  67    server.dsp = XOpenDisplay (NULL);
  68    if (!server.dsp) {
  69       fprintf(stderr, "Could not open display.\n");
  70       exit(0);
  71    }
  72    server_init_atoms ();
  73    server.screen = DefaultScreen (server.dsp);
  74         server.root_win = RootWindow(server.dsp, server.screen);
  75    server.depth = DefaultDepth (server.dsp, server.screen);
  76    server.visual = DefaultVisual (server.dsp, server.screen);
  77    server.desktop = server_get_current_desktop ();
  78
  79    XSetErrorHandler ((XErrorHandler) server_catch_error);
  80
  81    // init systray
  82    display = server.dsp;
  83    root = RootWindow(display, DefaultScreen(display));
  84    //create_main_window();
  85    //kde_init();
  86    //net_init();
  87    //printf("ici 4\n");
  88
  89    imlib_context_set_display (server.dsp);
  90    imlib_context_set_visual (server.visual);
  91    imlib_context_set_colormap (DefaultColormap (server.dsp, server.screen));
  92
  93    /* Catch events */
  94    XSelectInput (server.dsp, server.root_win, PropertyChangeMask|StructureNotifyMask);
  95
  96    setlocale (LC_ALL, "");
  97 }
  98
  99
 100 void window_action (Task *tsk, int action)
 101 {
 102    switch (action) {
 103       case CLOSE:
 104          set_close (tsk->win);
 105          break;
 106       case TOGGLE:
 107          set_active(tsk->win);
 108          break;
 109       case ICONIFY:
 110          XIconifyWindow (server.dsp, tsk->win, server.screen);
 111          break;
 112       case TOGGLE_ICONIFY:
 113          if (tsk == panel.task_active) XIconifyWindow (server.dsp, tsk->win, server.screen);
 114          else set_active (tsk->win);
 115          break;
 116       case SHADE:
 117          window_toggle_shade (tsk->win);
 118          break;
 119    }
 120 }
 121
 122
 123 void event_button_press (int x, int y)
 124 {
 125    if (panel.mode == SINGLE_DESKTOP) {
 126       // drag and drop disabled
 127       XLowerWindow (server.dsp, window.main_win);
 128       return;
 129    }
 130
 131    Taskbar *tskbar;
 132    GSList *l0;
 133    for (l0 = panel.area.list; l0 ; l0 = l0->next) {
 134       tskbar = l0->data;
 135       if (x >= tskbar->area.posx && x <= (tskbar->area.posx + tskbar->area.width))
 136          break;
 137    }
 138
 139    if (l0) {
 140       Task *tsk;
 141       for (l0 = tskbar->area.list; l0 ; l0 = l0->next) {
 142          tsk = l0->data;
 143          if (x >= tsk->area.posx && x <= (tsk->area.posx + tsk->area.width)) {
 144             panel.task_drag = tsk;
 145             break;
 146          }
 147       }
 148    }
 149
 150    XLowerWindow (server.dsp, window.main_win);
 151 }
 152
 153
 154 void event_button_release (int button, int x, int y)
 155 {
 156    int action = TOGGLE_ICONIFY;
 157    // TODO: convert event_button_press(int x, int y) to area->event_button_press()
 158    // if systray is ok
 159
 160    switch (button) {
 161       case 2:
 162          action = panel.mouse_middle;
 163          break;
 164       case 3:
 165          action = panel.mouse_right;
 166          break;
 167       case 4:
 168          action = panel.mouse_scroll_up;
 169          break;
 170       case 5:
 171          action = panel.mouse_scroll_down;
 172          break;
 173    }
 174
 175    // search taskbar
 176    Taskbar *tskbar;
 177    GSList *l0;
 178    for (l0 = panel.area.list; l0 ; l0 = l0->next) {
 179       tskbar = l0->data;
 180       if (x >= tskbar->area.posx && x <= (tskbar->area.posx + tskbar->area.width))
 181          goto suite;
 182    }
 183
 184    // TODO: check better solution to keep window below
 185    XLowerWindow (server.dsp, window.main_win);
 186    panel.task_drag = 0;
 187    return;
 188
 189 suite:
 190    // drag and drop task
 191    if (panel.task_drag) {
 192       if (tskbar != panel.task_drag->area.parent && action == TOGGLE_ICONIFY) {
 193          windows_set_desktop(panel.task_drag->win, tskbar->desktop);
 194          if (tskbar->desktop == server.desktop)
 195             set_active(panel.task_drag->win);
 196          panel.task_drag = 0;
 197          return;
 198       }
 199       else panel.task_drag = 0;
 200    }
 201
 202    // switch desktop
 203    if (panel.mode == MULTI_DESKTOP)
 204       if (tskbar->desktop != server.desktop && action != CLOSE)
 205          set_desktop (tskbar->desktop);
 206
 207    // action on task
 208    Task *tsk;
 209    GSList *l;
 210    for (l = tskbar->area.list ; l ; l = l->next) {
 211       tsk = l->data;
 212       if (x >= tsk->area.posx && x <= (tsk->area.posx + tsk->area.width)) {
 213          window_action (tsk, action);
 214          break;
 215       }
 216    }
 217
 218    // to keep window below
 219    XLowerWindow (server.dsp, window.main_win);
 220 }
 221
 222
 223 void event_property_notify (Window win, Atom at)
 224 {
 225
 226    if (win == server.root_win) {
 227       if (!server.got_root_win) {
 228          XSelectInput (server.dsp, server.root_win, PropertyChangeMask|StructureNotifyMask);
 229          server.got_root_win = 1;
 230       }
 231
 232       /* Change number of desktops */
 233       else if (at == server.atom._NET_NUMBER_OF_DESKTOPS) {
 234          config_taskbar();
 235          visible_object();
 236       }
 237       /* Change desktop */
 238       else if (at == server.atom._NET_CURRENT_DESKTOP) {
 239          server.desktop = server_get_current_desktop ();
 240          if (panel.mode != MULTI_DESKTOP) {
 241             visible_object();
 242          }
 243       }
 244       /* Window list */
 245       else if (at == server.atom._NET_CLIENT_LIST) {
 246          task_refresh_tasklist ();
 247          panel.refresh = 1;
 248       }
 249       /* Active */
 250       else if (at == server.atom._NET_ACTIVE_WINDOW) {
 251          Window w1 = window_get_active ();
 252          Task *t = task_get_task(w1);
 253          if (t) panel.task_active = t;
 254          else {
 255             Window w2;
 256             if (XGetTransientForHint(server.dsp, w1, &w2) != 0)
 257                if (w2) panel.task_active = task_get_task(w2);
 258          }
 259          panel.refresh = 1;
 260       }
 261       /* Wallpaper changed */
 262       else if (at == server.atom._XROOTPMAP_ID) {
 263          XFreePixmap (server.dsp, panel.area.pmap);
 264          panel.area.pmap = 0;
 265          panel.refresh = 1;
 266       }
 267    }
 268    else {
 269       Task *tsk;
 270       tsk = task_get_task (win);
 271       if (!tsk) return;
 272       //printf("atom root_win = %s, %s\n", XGetAtomName(server.dsp, at), tsk->title);
 273
 274       /* Window title changed */
 275       if (at == server.atom._NET_WM_VISIBLE_NAME || at == server.atom._NET_WM_NAME || at == server.atom.WM_NAME) {
 276          get_title(tsk);
 277          tsk->area.redraw = 1;
 278          panel.refresh = 1;
 279       }
 280       /* Iconic state */
 281       else if (at == server.atom.WM_STATE) {
 282          if (window_is_iconified (win))
 283             if (panel.task_active == tsk) panel.task_active = 0;
 284       }
 285       /* Window icon changed */
 286       else if (at == server.atom._NET_WM_ICON) {
 287          if (tsk->icon_data) {
 288             free (tsk->icon_data);
 289             tsk->icon_data = 0;
 290          }
 291          tsk->area.redraw = 1;
 292          panel.refresh = 1;
 293       }
 294       /* Window desktop changed */
 295       else if (at == server.atom._NET_WM_DESKTOP) {
 296          add_task (tsk->win);
 297          remove_task (tsk);
 298          panel.refresh = 1;
 299       }
 300
 301       if (!server.got_root_win) server.root_win = RootWindow (server.dsp, server.screen);
 302    }
 303 }
 304
 305
 306 void event_configure_notify (Window win)
 307 {
 308    Task *tsk;
 309
 310    tsk = task_get_task (win);
 311    if (!tsk) return;
 312
 313    Taskbar *tskbar = tsk->area.parent;
 314    if (tskbar->monitor != window_get_monitor (win)) {
 315       // task on another monitor
 316       add_task (tsk->win);
 317       remove_task (tsk);
 318       panel.refresh = 1;
 319    }
 320 }
 321
 322
 323 void event_timer()
 324 {
 325    struct timeval stv;
 326
 327    if (!panel.clock.time1_format) return;
 328
 329    if (gettimeofday(&stv, 0)) return;
 330
 331    if (abs(stv.tv_sec - panel.clock.clock.tv_sec) < panel.clock.time_precision) return;
 332
 333    // update clock
 334    panel.clock.clock.tv_sec = stv.tv_sec;
 335    panel.clock.clock.tv_sec -= panel.clock.clock.tv_sec % panel.clock.time_precision;
 336    panel.clock.area.redraw = 1;
 337    panel.refresh = 1;
 338 }
 339
 340
 341 int main (int argc, char *argv[])
 342 {
 343    XEvent e;
 344    fd_set fd;
 345    int x11_fd, i, c;
 346    struct timeval tv;
 347
 348    c = getopt (argc, argv, "c:");
 349    init ();
 350
 351 load_config:
 352    if (panel.area.pmap) XFreePixmap (server.dsp, panel.area.pmap);
 353    panel.area.pmap = 0;
 354    // append full transparency background
 355    list_back = g_slist_append(0, calloc(1, sizeof(Area)));
 356
 357    // read tint2rc config
 358    i = 0;
 359    if (c != -1)
 360       i = config_read_file (optarg);
 361    if (!i)
 362       i = config_read ();
 363    if (!i) {
 364       fprintf(stderr, "usage: tint2 [-c] <config_file>\n");
 365       cleanup();
 366       exit(1);
 367    }
 368    config_finish ();
 369
 370    window_draw_panel ();
 371
 372    // BUG: refresh(clock) is needed here, but 'on the paper' it's not necessary.
 373    refresh(&panel.clock.area);
 374
 375    x11_fd = ConnectionNumber (server.dsp);
 376    XSync (server.dsp, False);
 377
 378    while (1) {
 379       // thanks to AngryLlama for the timer
 380       // Create a File Description Set containing x11_fd
 381       FD_ZERO (&fd);
 382       FD_SET (x11_fd, &fd);
 383
 384       tv.tv_usec = 500000;
 385       tv.tv_sec = 0;
 386
 387       // Wait for X Event or a Timer
 388       if (select(x11_fd+1, &fd, 0, 0, &tv)) {
 389          while (XPending (server.dsp)) {
 390             XNextEvent(server.dsp, &e);
 391
 392             switch (e.type) {
 393                case ButtonPress:
 394                   if (e.xbutton.button == 1) event_button_press (e.xbutton.x, e.xbutton.y);
 395                   break;
 396
 397                case ButtonRelease:
 398                   event_button_release (e.xbutton.button, e.xbutton.x, e.xbutton.y);
 399                   break;
 400
 401                case Expose:
 402                   XCopyArea (server.dsp, panel.area.pmap, server.root_win, server.gc_root, 0, 0, panel.area.width, panel.area.height, server.posx, server.posy);
 403                   XCopyArea (server.dsp, server.pmap, window.main_win, server.gc, panel.area.paddingx, 0, panel.area.width-(2*panel.area.paddingx), panel.area.height, 0, 0);
 404                   break;
 405
 406                case PropertyNotify:
 407                   //printf("PropertyNotify\n");
 408                   event_property_notify (e.xproperty.window, e.xproperty.atom);
 409                   break;
 410
 411                case ConfigureNotify:
 412                   if (e.xconfigure.window == server.root_win)
 413                      goto load_config;
 414                   else
 415                      if (panel.mode == MULTI_MONITOR)
 416                         event_configure_notify (e.xconfigure.window);
 417                   break;
 418             }
 419          }
 420       }
 421       else event_timer();
 422
 423                 switch (panel.signal_pending) {
 424                         case SIGUSR1:
 425             goto load_config;
 426                         case SIGINT:
 427                         case SIGTERM:
 428                            cleanup ();
 429                            return 0;
 430       }
 431
 432       if (panel.refresh && !panel.sleep_mode) {
 433          visual_refresh ();
 434          //printf("   *** visual_refresh\n");
 435       }
 436    }
 437 }
 438
 439