tools/slit/slit.c

   1 #include "render/render.h"
   2 #include "render/theme.h"
   3
   4 #include <X11/Xlib.h>
   5 #include <stdlib.h>
   6 #include <glib.h>
   7 #ifdef HAVE_SIGNAL_H
   8 #  include <signal.h>
   9 #endif
  10 #ifdef HAVE_SYS_SELECT_H
  11 #  include <sys/select.h>
  12 #endif
  13
  14 #define TITLE_EVENT_MASK (ButtonPressMask | ButtonReleaseMask | \
  15                           ButtonMotionMask)
  16 #define ROOT_EVENT_MASK (PropertyChangeMask | StructureNotifyMask | \
  17                          SubstructureNotifyMask)
  18 #define SLITAPP_EVENT_MASK (StructureNotifyMask)
  19
  20 Display *ob_display;
  21 Window ob_root;
  22 int ob_screen;
  23
  24 static struct Slit {
  25     Window frame;
  26     Window title;
  27
  28     /* user-requested position stuff */
  29     int gravity;
  30     int user_x, user_y;
  31
  32     /* actual position (when not auto-hidden) */
  33     int x, y;
  34     int w, h;
  35
  36     gboolean horz;
  37
  38     Appearance *a_frame;
  39     Appearance *a_title;
  40
  41     GList *slit_apps;
  42 } *slit;
  43 static int nslits;
  44
  45 struct SlitApp {
  46     Window icon_win;
  47     Window win;
  48     int x;
  49     int y;
  50     int w;
  51     int h;
  52 };
  53
  54 static Atom atom_atom;
  55 static Atom atom_card;
  56 static Atom atom_theme;
  57 static Atom atom_type;
  58 static Atom atom_type_dock;
  59 static Atom atom_desktop;
  60 static Atom atom_state;
  61 static Atom atom_strut;
  62
  63 static gboolean quit = FALSE;
  64 static gboolean reconfig = FALSE;
  65
  66 void slit_read_theme();
  67 void slit_configure();
  68 void event_handle(XEvent *e);
  69 void slit_add_existing();
  70 void slit_add_app(Window win);
  71 void slit_remove_app(struct Slit *slit, struct SlitApp *app,gboolean reparent);
  72
  73 void sighandler(int signal)
  74 {
  75     if (signal == SIGUSR1)
  76         reconfig =TRUE;
  77     else
  78         quit = TRUE;
  79 }
  80
  81 int xerrorhandler(Display *d, XErrorEvent *e)
  82 {
  83     char errtxt[128];
  84     XGetErrorText(d, e->error_code, errtxt, 127);
  85     g_error("X Error: %s", errtxt);
  86     return 0;
  87 }
  88
  89 int main()
  90 {
  91     int i;
  92     guint desk = 0xffffffff;
  93     XEvent e;
  94     XSetWindowAttributes attrib;
  95     struct sigaction action;
  96     sigset_t sigset;
  97     int xfd;
  98     fd_set selset;
  99
 100     /* set up signal handler */
 101     sigemptyset(&sigset);
 102     action.sa_handler = sighandler;
 103     action.sa_mask = sigset;
 104     action.sa_flags = SA_NOCLDSTOP;
 105     sigaction(SIGUSR1, &action, (struct sigaction *) NULL);
 106     sigaction(SIGPIPE, &action, (struct sigaction *) NULL);
 107     sigaction(SIGSEGV, &action, (struct sigaction *) NULL);
 108     sigaction(SIGFPE, &action, (struct sigaction *) NULL);
 109     sigaction(SIGTERM, &action, (struct sigaction *) NULL);
 110     sigaction(SIGINT, &action, (struct sigaction *) NULL);
 111     sigaction(SIGHUP, &action, (struct sigaction *) NULL);
 112
 113     ob_display = XOpenDisplay(NULL);
 114     ob_screen = DefaultScreen(ob_display);
 115     ob_root = RootWindow(ob_display, ob_screen);
 116
 117    XSetErrorHandler(xerrorhandler);
 118
 119     render_startup();
 120     theme_startup();
 121
 122     atom_atom = XInternAtom(ob_display, "ATOM", False);
 123     atom_card = XInternAtom(ob_display, "CARDINAL", False);
 124     atom_theme = XInternAtom(ob_display, "_OPENBOX_THEME", False);
 125     atom_type = XInternAtom(ob_display, "_NET_WM_WINDOW_TYPE", False);
 126     atom_type_dock = XInternAtom(ob_display, "_NET_WM_WINDOW_TYPE_DOCK",False);
 127     atom_desktop =XInternAtom(ob_display, "_NET_WM_DESKTOP", False);
 128     atom_state = XInternAtom(ob_display, "WM_STATE", False);
 129     atom_strut = XInternAtom(ob_display, "_NET_WM_STRUT", False);
 130
 131     nslits = 1;
 132     slit = g_new0(struct Slit, nslits);
 133
 134     for (i = 0; i < nslits; ++i) {
 135         slit[i].horz = TRUE;
 136
 137         slit[i].frame = XCreateWindow(ob_display, ob_root, 0, 0, 1, 1, 0,
 138                                       render_depth, InputOutput, render_visual,
 139                                       0, NULL);
 140         attrib.event_mask = TITLE_EVENT_MASK;
 141         slit[i].title = XCreateWindow(ob_display, slit[i].frame, 0, 0, 1, 1, 0,
 142                                       render_depth, InputOutput, render_visual,
 143                                       CWEventMask, &attrib);
 144         XMapWindow(ob_display, slit[i].title);
 145
 146         XChangeProperty(ob_display, slit[i].frame, atom_type, atom_atom,
 147                         32, PropModeReplace, (guchar*)&atom_type_dock, 1);
 148
 149         XChangeProperty(ob_display, slit[i].frame, atom_desktop, atom_card,
 150                         32, PropModeReplace, (guchar*)&desk, 1);
 151     }
 152
 153     slit_read_theme();
 154
 155     XSelectInput(ob_display, ob_root, ROOT_EVENT_MASK);
 156
 157     slit_add_existing();
 158
 159     xfd = ConnectionNumber(ob_display);
 160     FD_ZERO(&selset);
 161     FD_SET(xfd, &selset);
 162     while (!quit) {
 163         gboolean hadevent = FALSE;
 164         while (XPending(ob_display)) {
 165             XNextEvent(ob_display, &e);
 166             event_handle(&e);
 167             hadevent = TRUE;
 168         }
 169         if (!hadevent) {
 170             if (reconfig)
 171                 slit_read_theme();
 172
 173             if (!quit)
 174                 select(xfd + 1, &selset, NULL, NULL, NULL);
 175         }
 176     }
 177
 178     for (i = 0; i < nslits; ++i) {
 179         while (slit[i].slit_apps)
 180             slit_remove_app(&slit[i], slit[i].slit_apps->data, TRUE);
 181
 182         XDestroyWindow(ob_display, slit[i].title);
 183         XDestroyWindow(ob_display, slit[i].frame);
 184
 185         appearance_free(slit[i].a_frame);
 186         appearance_free(slit[i].a_title);
 187     }
 188
 189     theme_shutdown();
 190     render_shutdown();
 191     XCloseDisplay(ob_display);
 192     return 0;
 193 }
 194
 195 Window find_client(Window win)
 196 {
 197   Window r, *children;
 198   unsigned int n, i;
 199   Atom ret_type;
 200   int ret_format;
 201   unsigned long ret_items, ret_bytesleft;
 202   unsigned long *prop_return;
 203
 204   XQueryTree(ob_display, win, &r, &r, &children, &n);
 205   for (i = 0; i < n; ++i) {
 206     Window w = find_client(children[i]);
 207     if (w) return w;
 208   }
 209
 210   /* try me */
 211   XGetWindowProperty(ob_display, win, atom_state, 0, 1,
 212                      False, atom_state, &ret_type, &ret_format,
 213                      &ret_items, &ret_bytesleft,
 214                      (unsigned char**) &prop_return);
 215   if (ret_type == None || ret_items < 1)
 216     return None;
 217   return win; /* found it! */
 218 }
 219
 220 void event_handle(XEvent *e)
 221 {
 222     int i;
 223     Window win;
 224     static guint button = 0;
 225     int sw, sh;
 226     int xpos, ypos;
 227     int x, y, g;
 228
 229     switch (e->type) {
 230     case ButtonPress:
 231         if (!button) {
 232             button = e->xbutton.button;
 233         }
 234         break;
 235     case ButtonRelease:
 236         if (button == e->xbutton.button)
 237             button = 0;
 238         break;
 239     case MotionNotify:
 240         if (button == 1) {
 241             for (i = 0; i < nslits; ++i)
 242                 if (slit[i].title == e->xmotion.window) {
 243                     /* pick a corner and move it */
 244                     sw = WidthOfScreen(ScreenOfDisplay(ob_display, ob_screen));
 245                     sh = HeightOfScreen(ScreenOfDisplay(ob_display,ob_screen));
 246
 247                     if (e->xmotion.x_root < sw / 3) /* left edge */
 248                         xpos = 0;
 249                     else if (e->xmotion.x_root < sw / 3 * 2) /* middle */
 250                         xpos = 1;
 251                     else /* right edge */
 252                         xpos = 2;
 253                     if (e->xmotion.y_root < sh / 3) /* top edge */
 254                         ypos = 0;
 255                     else if (e->xmotion.y_root < sh / 3 * 2) /* middle */
 256                         ypos = 1;
 257                     else /* bottom edge */
 258                         ypos = 2;
 259
 260                     if (xpos == 1 && ypos == 1)
 261                         return; /* cant go in middle middle */
 262
 263                     if (xpos == 0) {
 264                         if (ypos == 0) {
 265                             x = 0;
 266                             y = 0;
 267                             g = NorthWestGravity;
 268                         } else if (ypos == 1) {
 269                             x = 0;
 270                             y = sh / 2;
 271                             g = WestGravity;
 272                         } else {
 273                             x = 0;
 274                             y = sh;
 275                             g = SouthWestGravity;
 276                         }
 277                     } else if (xpos == 1) {
 278                         if (ypos == 0) {
 279                             x = sw / 2;
 280                             y = 0;
 281                             g = NorthGravity;
 282                         } else {
 283                             x = sw / 2;
 284                             y = sh;
 285                             g = SouthGravity;
 286                         }
 287                     } else {
 288                         if (ypos == 0) {
 289                             x = sw;
 290                             y = 0;
 291                             g = NorthEastGravity;
 292                         } else if (ypos == 1) {
 293                             x = sw;
 294                             y = sh / 2;
 295                             g = EastGravity;
 296                         } else {
 297                             x = sw;
 298                             y = sh;
 299                             g = SouthEastGravity;
 300                         }
 301                     }
 302                     if (x != slit[i].x || y != slit[i].y ||
 303                         g != slit[i].gravity) {
 304                         slit[i].user_x = x;
 305                         slit[i].user_y = y;
 306                         slit[i].gravity = g;
 307                         slit_configure();
 308                     }
 309                 }
 310         }
 311         break;
 312     case PropertyNotify:
 313         g_message("PropertyNotify on 0x%lx", e->xproperty.window);
 314         if (e->xproperty.window == ob_root) {
 315             if (e->xproperty.atom == atom_theme)
 316                 slit_read_theme();
 317         }
 318         break;
 319     case ConfigureNotify:
 320         g_message("ConfigureNotify on 0x%lx", e->xconfigure.window);
 321         if (e->xconfigure.window == ob_root) {
 322             slit_configure();
 323             return;
 324         }
 325
 326         /* an owned slitapp? */
 327         for (i = 0; i < nslits; ++i) {
 328             GList *it;
 329
 330             for (it = slit[i].slit_apps; it; it = it->next) {
 331                 struct SlitApp *app = it->data;
 332                 if (e->xconfigure.window == app->icon_win) {
 333                     if (app->w != e->xconfigure.width ||
 334                         app->h != e->xconfigure.height) {
 335                         g_message("w %d h %d w %d h %d",
 336                                   app->w, e->xconfigure.width,
 337                                   app->h, e->xconfigure.height);
 338                         app->w = e->xconfigure.width;
 339                         app->h = e->xconfigure.height;
 340                         slit_configure();
 341                     }
 342                     return;
 343                 }
 344             }
 345         }
 346         break;
 347     case MapNotify:
 348         g_message("MapNotify on 0x%lx", e->xmap.window);
 349
 350         win = find_client(e->xmap.window);
 351         if (!win) return;
 352
 353         for (i = 0; i < nslits; ++i)
 354             if (win == slit[i].frame)
 355                 return;
 356
 357         slit_add_app(win);
 358         break;
 359     case UnmapNotify:
 360         g_message("UnmapNotify on 0x%lx", e->xunmap.window);
 361         for (i = 0; i < nslits; ++i) {
 362             GList *it;
 363
 364             for (it = slit[i].slit_apps; it; it = it->next) {
 365                 struct SlitApp *app = it->data;
 366                 if (e->xunmap.window == app->icon_win) {
 367                     gboolean r;
 368                     XEvent e;
 369
 370                     r = !XCheckTypedWindowEvent(ob_display, app->icon_win,
 371                                                 DestroyNotify, &e);
 372                     if (r) {
 373                         if (XCheckTypedWindowEvent(ob_display, app->icon_win,
 374                                                    ReparentNotify, &e)) {
 375                             XPutBackEvent(ob_display, &e);
 376                             r = FALSE;
 377                         }
 378                     }
 379                     slit_remove_app(&slit[i], app, r);
 380                     break;
 381                 }
 382             }
 383         }
 384         break;
 385     case ReparentNotify:
 386         g_message("ReparentNotify on 0x%lx", e->xdestroywindow.window);
 387         for (i = 0; i < nslits; ++i) {
 388             GList *it;
 389
 390             for (it = slit[i].slit_apps; it; it = it->next) {
 391                 struct SlitApp *app = it->data;
 392                 if (e->xdestroywindow.window == app->icon_win) {
 393                     slit_remove_app(&slit[i], app, FALSE);
 394                     break;
 395                 }
 396             }
 397         }
 398     case DestroyNotify:
 399         g_message("DestroyNotify on 0x%lx", e->xdestroywindow.window);
 400         for (i = 0; i < nslits; ++i) {
 401             GList *it;
 402
 403             for (it = slit[i].slit_apps; it; it = it->next) {
 404                 struct SlitApp *app = it->data;
 405                 if (e->xdestroywindow.window == app->icon_win) {
 406                     slit_remove_app(&slit[i], app, FALSE);
 407                     break;
 408                 }
 409             }
 410         }
 411         break;
 412     }
 413 }
 414
 415 void slit_add_existing()
 416 {
 417     unsigned int i, nchild;
 418     int j;
 419     Window w, *children;
 420     XWindowAttributes attrib;
 421
 422     XQueryTree(ob_display, ob_root, &w, &w, &children, &nchild);
 423
 424     for (i = 0; i < nchild; ++i) {
 425         for (j = 0; j < nslits; ++j)
 426             if (children[i] == slit[j].frame)
 427                 continue;
 428         if (children[i] == None)
 429             continue;
 430         if ((children[i] = find_client(children[i])) == None)
 431             continue;
 432         if (XGetWindowAttributes(ob_display, children[i], &attrib)) {
 433             if (attrib.override_redirect) continue;
 434
 435             slit_add_app(children[i]);
 436         }
 437     }
 438     XFree(children);
 439 }
 440
 441 void slit_add_app(Window win)
 442 {
 443     int i;
 444     XWMHints *h;
 445     XWindowAttributes attrib;
 446     struct Slit *s;
 447
 448     s = &slit[0];
 449
 450     if ((h = XGetWMHints(ob_display, win))) {
 451         if (h->flags & StateHint && h->initial_state == WithdrawnState) {
 452             struct SlitApp *app = g_new(struct SlitApp, 1);
 453
 454             app->win = win;
 455             app->icon_win = (h->flags & IconWindowHint) ?
 456                 h->icon_window : win;
 457
 458             XFree(h);
 459
 460             for (i = 0; i < nslits; ++i) {
 461                 GList *it;
 462                 for (it = slit[i].slit_apps; it; it = it->next)
 463                     if (app->icon_win ==
 464                         ((struct SlitApp*)it->data)->icon_win)
 465                         /* already managed! */
 466                         return;
 467             }
 468
 469             if (XGetWindowAttributes(ob_display, app->icon_win, &attrib)) {
 470                 app->w = attrib.width;
 471                 app->h = attrib.height;
 472             } else {
 473                 g_free(app);
 474                 app = NULL;
 475             }
 476
 477             if (app) {
 478                 s->slit_apps = g_list_append(s->slit_apps, app);
 479                 slit_configure();
 480                 XReparentWindow(ob_display, app->icon_win,
 481                                 s->frame, app->x, app->y);
 482 /*                if (app->win != app->icon_win)
 483                   XUnmapWindow(ob_display, app->win);*/
 484                 XSync(ob_display, False);
 485                 XSelectInput(ob_display, app->icon_win,
 486                              SLITAPP_EVENT_MASK);
 487             }
 488             g_message("Managed: 0x%lx", app->icon_win);
 489         } else
 490             XFree(h);
 491     }
 492 }
 493
 494 void slit_remove_app(struct Slit *slit, struct SlitApp *app, gboolean reparent)
 495 {
 496
 497     XSelectInput(ob_display, app->icon_win, NoEventMask);
 498     XSync(ob_display, False);
 499     if (reparent) {
 500         g_message("reparenting");
 501 /*        if (app->win != app->icon_win)
 502           XMapWindow(ob_display, app->win);*/
 503         XReparentWindow(ob_display, app->icon_win, ob_root, 0, 0);
 504     }
 505
 506     g_free(app);
 507     slit->slit_apps = g_list_remove(slit->slit_apps, app);
 508     slit_configure();
 509 }
 510
 511 void slit_read_theme()
 512 {
 513     XTextProperty prop;
 514     int i;
 515     char *theme = NULL;
 516
 517     if (XGetTextProperty(ob_display, ob_root, &prop,
 518                          XInternAtom(ob_display, "_OPENBOX_THEME", False))) {
 519         theme = theme_load((char*)prop.value);
 520         XFree(prop.value);
 521     } else
 522         theme = theme_load(NULL);
 523
 524     g_free(theme);
 525     if (!theme) exit(EXIT_FAILURE);
 526
 527     for (i = 0; i < nslits; ++i) {
 528         appearance_free(slit[i].a_frame);
 529         appearance_free(slit[i].a_title);
 530
 531         slit[i].a_frame = appearance_copy(theme_a_unfocused_title);
 532         slit[i].a_title = appearance_copy(theme_a_unfocused_title);
 533
 534         XSetWindowBorder(ob_display, slit[i].frame, theme_b_color->pixel);
 535         XSetWindowBorderWidth(ob_display, slit[i].frame, theme_bwidth);
 536         XSetWindowBorder(ob_display, slit[i].frame, BlackPixel(ob_display, ob_screen));
 537         XSetWindowBorderWidth(ob_display, slit[i].frame, 30);
 538     }
 539
 540     slit_configure();
 541 }
 542
 543 void slit_configure()
 544 {
 545     int i;
 546     int titleh;
 547     GList *it;
 548     int spot;
 549
 550     titleh = 4;
 551
 552     for (i = 0; i < nslits; ++i) {
 553         if (slit[i].horz) {
 554             slit[i].w = titleh;
 555             slit[i].h = 0;
 556         } else {
 557             slit[i].w = 0;
 558             slit[i].h = titleh;
 559         }
 560         spot = titleh;
 561
 562         for (it = slit[i].slit_apps; it; it = it->next) {
 563             struct SlitApp *app = it->data;
 564             if (slit[i].horz) {
 565                 g_message("%d", spot);
 566                 app->x = spot;
 567                 app->y = 0;
 568                 slit[i].w += app->w;
 569                 slit[i].h = MAX(slit[i].h, app->h);
 570                 spot += app->w;
 571             } else {
 572                 app->x = 0;
 573                 app->y = spot;
 574                 slit[i].w = MAX(slit[i].h, app->w);
 575                 slit[i].h += app->h;
 576                 spot += app->h;
 577             }
 578
 579             XMoveWindow(ob_display, app->icon_win, app->x, app->y);
 580         }
 581
 582         /* calculate position */
 583         slit[i].x = slit[i].user_x;
 584         slit[i].y = slit[i].user_y;
 585
 586         switch(slit[i].gravity) {
 587         case NorthGravity:
 588         case CenterGravity:
 589         case SouthGravity:
 590             slit[i].x -= slit[i].w / 2;
 591             break;
 592         case NorthEastGravity:
 593         case EastGravity:
 594         case SouthEastGravity:
 595             slit[i].x -= slit[i].w;
 596             break;
 597         }
 598         switch(slit[i].gravity) {
 599         case WestGravity:
 600         case CenterGravity:
 601         case EastGravity:
 602             slit[i].y -= slit[i].h / 2;
 603             break;
 604         case SouthWestGravity:
 605         case SouthGravity:
 606         case SouthEastGravity:
 607             slit[i].y -= slit[i].h;
 608             break;
 609         }
 610
 611         if (slit[i].w > 0 && slit[i].h > 0) {
 612             RECT_SET(slit[i].a_frame->area, 0, 0, slit[i].w, slit[i].h);
 613             XMoveResizeWindow(ob_display, slit[i].frame,
 614                               slit[i].x - theme_bwidth,
 615                               slit[i].y - theme_bwidth,
 616                               slit[i].w, slit[i].h);
 617
 618             if (slit[i].horz) {
 619                 RECT_SET(slit[i].a_title->area, 0, 0, titleh, slit[i].h);
 620                 XMoveResizeWindow(ob_display, slit[i].title, 0, 0,
 621                                   titleh, slit[i].h);
 622             } else {
 623                 RECT_SET(slit[i].a_title->area, 0, 0, slit[i].w, titleh);
 624                 XMoveResizeWindow(ob_display, slit[i].title, 0, 0,
 625                                   slit[i].w, titleh);
 626             }
 627
 628             paint(slit[i].frame, slit[i].a_frame);
 629             paint(slit[i].title, slit[i].a_title);
 630             XMapWindow(ob_display, slit[i].frame);
 631         } else
 632             XUnmapWindow(ob_display, slit[i].frame);
 633     }
 634 }