Dogcows Code - chaz/tint2/blob - src/server.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 <X11/extensions/Xrender.h>
  22 #include <X11/extensions/Xrandr.h>
  23
  24
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <unistd.h>
  28
  29 #include "server.h"
  30 #include "config.h"
  31 #include "task.h"
  32 #include "window.h"
  33
  34 void server_catch_error (Display *d, XErrorEvent *ev){}
  35
  36 int real_transparency = 0;
  37
  38 void server_init_atoms ()
  39 {
  40         server.atom._XROOTPMAP_ID = XInternAtom (server.dsp, "_XROOTPMAP_ID", False);
  41         server.atom._NET_CURRENT_DESKTOP = XInternAtom (server.dsp, "_NET_CURRENT_DESKTOP", False);
  42         server.atom._NET_NUMBER_OF_DESKTOPS = XInternAtom (server.dsp, "_NET_NUMBER_OF_DESKTOPS", False);
  43         server.atom._NET_DESKTOP_GEOMETRY = XInternAtom (server.dsp, "_NET_DESKTOP_GEOMETRY", False);
  44         server.atom._NET_DESKTOP_VIEWPORT = XInternAtom (server.dsp, "_NET_DESKTOP_VIEWPORT", False);
  45         server.atom._NET_ACTIVE_WINDOW = XInternAtom (server.dsp, "_NET_ACTIVE_WINDOW", False);
  46         server.atom._NET_WM_WINDOW_TYPE = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE", False);
  47         server.atom._NET_WM_STATE_SKIP_PAGER = XInternAtom (server.dsp, "_NET_WM_STATE_SKIP_PAGER", False);
  48         server.atom._NET_WM_STATE_SKIP_TASKBAR = XInternAtom (server.dsp, "_NET_WM_STATE_SKIP_TASKBAR", False);
  49         server.atom._NET_WM_STATE_STICKY = XInternAtom (server.dsp, "_NET_WM_STATE_STICKY", False);
  50         server.atom._NET_WM_STATE_DEMANDS_ATTENTION = XInternAtom (server.dsp, "_NET_WM_STATE_DEMANDS_ATTENTION", False);
  51         server.atom._NET_WM_WINDOW_TYPE_DOCK = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE_DOCK", False);
  52         server.atom._NET_WM_WINDOW_TYPE_DESKTOP = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE_DESKTOP", False);
  53         server.atom._NET_WM_WINDOW_TYPE_TOOLBAR = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE_TOOLBAR", False);
  54         server.atom._NET_WM_WINDOW_TYPE_MENU = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE_MENU", False);
  55         server.atom._NET_WM_WINDOW_TYPE_SPLASH = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE_SPLASH", False);
  56         server.atom._NET_WM_WINDOW_TYPE_DIALOG = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE_DIALOG", False);
  57         server.atom._NET_WM_WINDOW_TYPE_NORMAL = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE_NORMAL", False);
  58         server.atom._NET_WM_DESKTOP = XInternAtom (server.dsp, "_NET_WM_DESKTOP", False);
  59         server.atom.WM_STATE = XInternAtom (server.dsp, "WM_STATE", False);
  60         server.atom._NET_WM_STATE = XInternAtom (server.dsp, "_NET_WM_STATE", False);
  61         server.atom._NET_WM_STATE_MAXIMIZED_VERT = XInternAtom (server.dsp, "_NET_WM_STATE_MAXIMIZED_VERT", False);
  62         server.atom._NET_WM_STATE_MAXIMIZED_HORZ = XInternAtom (server.dsp, "_NET_WM_STATE_MAXIMIZED_HORZ", False);
  63         server.atom._NET_WM_STATE_SHADED = XInternAtom (server.dsp, "_NET_WM_STATE_SHADED", False);
  64         server.atom._NET_WM_STATE_HIDDEN = XInternAtom (server.dsp, "_NET_WM_STATE_HIDDEN", False);
  65         server.atom._NET_WM_STATE_BELOW = XInternAtom (server.dsp, "_NET_WM_STATE_BELOW", False);
  66         server.atom._NET_WM_STATE_ABOVE = XInternAtom (server.dsp, "_NET_WM_STATE_ABOVE", False);
  67         server.atom._NET_WM_STATE_MODAL = XInternAtom (server.dsp, "_NET_WM_STATE_MODAL", False);
  68         server.atom._NET_CLIENT_LIST = XInternAtom (server.dsp, "_NET_CLIENT_LIST", False);
  69         server.atom._NET_WM_VISIBLE_NAME = XInternAtom (server.dsp, "_NET_WM_VISIBLE_NAME", False);
  70         server.atom._NET_WM_NAME = XInternAtom (server.dsp, "_NET_WM_NAME", False);
  71         server.atom._NET_WM_STRUT = XInternAtom (server.dsp, "_NET_WM_STRUT", False);
  72         server.atom._NET_WM_ICON = XInternAtom (server.dsp, "_NET_WM_ICON", False);
  73         server.atom._NET_CLOSE_WINDOW = XInternAtom (server.dsp, "_NET_CLOSE_WINDOW", False);
  74         server.atom.UTF8_STRING = XInternAtom (server.dsp, "UTF8_STRING", False);
  75         server.atom._NET_SUPPORTING_WM_CHECK = XInternAtom (server.dsp, "_NET_SUPPORTING_WM_CHECK", False);
  76         server.atom._NET_WM_CM_S0 = XInternAtom (server.dsp, "_NET_WM_CM_S0", False);
  77         server.atom._NET_SUPPORTING_WM_CHECK = XInternAtom (server.dsp, "_NET_WM_NAME", False);
  78         server.atom._NET_WM_STRUT_PARTIAL = XInternAtom (server.dsp, "_NET_WM_STRUT_PARTIAL", False);
  79         server.atom.WM_NAME = XInternAtom(server.dsp, "WM_NAME", False);
  80         server.atom.__SWM_VROOT = XInternAtom(server.dsp, "__SWM_VROOT", False);
  81         server.atom._MOTIF_WM_HINTS = XInternAtom(server.dsp, "_MOTIF_WM_HINTS", False);
  82         server.atom.WM_HINTS = XInternAtom(server.dsp, "WM_HINTS", False);
  83
  84         // systray protocol
  85         char *name_trayer = g_strdup_printf("_NET_SYSTEM_TRAY_S%d", DefaultScreen(server.dsp));
  86         server.atom._NET_SYSTEM_TRAY_SCREEN = XInternAtom(server.dsp, name_trayer, False);
  87         server.atom._NET_SYSTEM_TRAY_OPCODE = XInternAtom(server.dsp, "_NET_SYSTEM_TRAY_OPCODE", False);
  88         server.atom.MANAGER = XInternAtom(server.dsp, "MANAGER", False);
  89         server.atom._NET_SYSTEM_TRAY_MESSAGE_DATA = XInternAtom(server.dsp, "_NET_SYSTEM_TRAY_MESSAGE_DATA", False);
  90         server.atom._NET_SYSTEM_TRAY_ORIENTATION = XInternAtom(server.dsp, "_NET_SYSTEM_TRAY_ORIENTATION", False);
  91         server.atom._XEMBED = XInternAtom(server.dsp, "_XEMBED", False);
  92         server.atom._XEMBED_INFO = XInternAtom(server.dsp, "_XEMBED_INFO", False);
  93         g_free(name_trayer);
  94
  95         // drag 'n' drop
  96         server.atom.XdndAware = XInternAtom(server.dsp, "XdndAware", False);
  97         server.atom.XdndPosition = XInternAtom(server.dsp, "XdndPosition", False);
  98         server.atom.XdndStatus = XInternAtom(server.dsp, "XdndStatus", False);
  99
 100         server.colormap = 0;
 101         server.monitor = 0;
 102         server.gc = 0;
 103 }
 104
 105
 106 void cleanup_server()
 107 {
 108         if (server.colormap) XFreeColormap(server.dsp, server.colormap);
 109         if (server.colormap32) XFreeColormap(server.dsp, server.colormap32);
 110         if (server.monitor) {
 111                 int i;
 112                 for (i=0; i<server.nb_monitor; ++i)
 113                         g_strfreev(server.monitor[i].names);
 114                 free(server.monitor);
 115         }
 116         if (server.gc) XFreeGC(server.dsp, server.gc);
 117 }
 118
 119
 120 void send_event32 (Window win, Atom at, long data1, long data2, long data3)
 121 {
 122         XEvent event;
 123
 124         event.xclient.type = ClientMessage;
 125         event.xclient.serial = 0;
 126         event.xclient.send_event = True;
 127         event.xclient.display = server.dsp;
 128         event.xclient.window = win;
 129         event.xclient.message_type = at;
 130
 131         event.xclient.format = 32;
 132         event.xclient.data.l[0] = data1;
 133         event.xclient.data.l[1] = data2;
 134         event.xclient.data.l[2] = data3;
 135         event.xclient.data.l[3] = 0;
 136         event.xclient.data.l[4] = 0;
 137
 138         XSendEvent(server.dsp, server.root_win, False, SubstructureRedirectMask|SubstructureNotifyMask, &event);
 139 }
 140
 141
 142 int get_property32 (Window win, Atom at, Atom type)
 143 {
 144         Atom type_ret;
 145         int format_ret = 0, data = 0;
 146         unsigned long nitems_ret = 0;
 147         unsigned long bafter_ret = 0;
 148         unsigned char *prop_value = 0;
 149         int result;
 150
 151         if (!win) return 0;
 152
 153         result = XGetWindowProperty(server.dsp, win, at, 0, 0x7fffffff, False, type, &type_ret, &format_ret, &nitems_ret, &bafter_ret, &prop_value);
 154
 155         if (result == Success && prop_value) {
 156                 data = ((gulong*)prop_value)[0];
 157                 XFree (prop_value);
 158         }
 159         return data;
 160 }
 161
 162
 163 void *server_get_property (Window win, Atom at, Atom type, int *num_results)
 164 {
 165         Atom type_ret;
 166         int format_ret = 0;
 167         unsigned long nitems_ret = 0;
 168         unsigned long bafter_ret = 0;
 169         unsigned char *prop_value;
 170         int result;
 171
 172         if (!win) return 0;
 173
 174         result = XGetWindowProperty(server.dsp, win, at, 0, 0x7fffffff, False, type, &type_ret, &format_ret, &nitems_ret, &bafter_ret, &prop_value);
 175
 176         /* Send back resultcount */
 177         if (num_results) *num_results = nitems_ret;
 178
 179         if (result == Success && prop_value) return prop_value;
 180         else return 0;
 181 }
 182
 183
 184 void get_root_pixmap()
 185 {
 186         Pixmap ret = None;
 187
 188         unsigned long *res;
 189         int  c = 2;
 190
 191         do {
 192                 res = server_get_property (server.root_win, server.atom._XROOTPMAP_ID, XA_PIXMAP, 0);
 193                 if (res) {
 194                         ret = *((Pixmap*)res);
 195                         XFree(res);
 196                         break;
 197                 }
 198         } while (--c > 0);
 199         server.root_pmap = ret;
 200
 201         if (server.root_pmap == None)
 202                 fprintf(stderr, "tint2 : pixmap background detection failed\n");
 203         else {
 204                 XGCValues  gcv;
 205                 gcv.ts_x_origin = 0;
 206                 gcv.ts_y_origin = 0;
 207                 gcv.fill_style = FillTiled;
 208                 uint mask = GCTileStipXOrigin | GCTileStipYOrigin | GCFillStyle | GCTile;
 209
 210                 gcv.tile = server.root_pmap;
 211                 XChangeGC(server.dsp, server.gc, mask, &gcv);
 212         }
 213 }
 214
 215
 216 int compareMonitorPos(const void *monitor1, const void *monitor2)
 217 {
 218         Monitor *m1 = (Monitor*)monitor1;
 219         Monitor *m2 = (Monitor*)monitor2;
 220
 221         if (m1->x < m2->x) {
 222                 return -1;
 223         }
 224         else if (m1->x > m2->x) {
 225                 return 1;
 226         }
 227         else if (m1->y < m2->y) {
 228                 return -1;
 229         }
 230         else if (m1->y > m2->y) {
 231                 return 1;
 232         }
 233         else {
 234                 return 0;
 235         }
 236 }
 237
 238
 239 int compareMonitorIncluded(const void *monitor1, const void *monitor2)
 240 {
 241         Monitor *m1 = (Monitor*)monitor1;
 242         Monitor *m2 = (Monitor*)monitor2;
 243
 244         if (m1->x >= m2->x && m1->y >= m2->y && (m1->x+m1->width) <= (m2->x+m2->width) && (m1->y+m1->height) <= (m2->y+m2->height)) {
 245                 // m1 included inside m2
 246                 return 1;
 247         }
 248         else {
 249                 return -1;
 250         }
 251 }
 252
 253
 254 void get_monitors()
 255 {
 256         if (server.monitor) {
 257                 int i;
 258                 for (i=0; i<server.nb_monitor; ++i)
 259                         g_strfreev(server.monitor[i].names);
 260                 free(server.monitor);
 261         }
 262         server.nb_monitor = 0;
 263         server.monitor = 0;
 264
 265         int i, j, nbmonitor;
 266         if (XineramaIsActive(server.dsp)) {
 267                 XineramaScreenInfo *info = XineramaQueryScreens(server.dsp, &nbmonitor);
 268                 XRRScreenResources *res = XRRGetScreenResourcesCurrent(server.dsp, server.root_win);
 269
 270                 if (res->ncrtc >= nbmonitor) {
 271                         // use xrandr to identify monitors (does not work with proprietery nvidia drivers)
 272                         printf("xRandr: Found crtc's: %d\n", res->ncrtc );
 273                         server.monitor = malloc(res->ncrtc * sizeof(Monitor));
 274                         for (i=0; i<res->ncrtc; ++i) {
 275                                 XRRCrtcInfo* crtc_info = XRRGetCrtcInfo(server.dsp, res, res->crtcs[i]);
 276                                 server.monitor[i].x = crtc_info->x;
 277                                 server.monitor[i].y = crtc_info->y;
 278                                 server.monitor[i].width = crtc_info->width;
 279                                 server.monitor[i].height = crtc_info->height;
 280                                 server.monitor[i].names = malloc((crtc_info->noutput+1) * sizeof(char*));
 281                                 for (j=0; j<crtc_info->noutput; ++j) {
 282                                         XRROutputInfo* output_info = XRRGetOutputInfo(server.dsp, res, crtc_info->outputs[j]);
 283                                         printf("xRandr: Linking output %s with crtc %d\n", output_info->name, i);
 284                                         server.monitor[i].names[j] = g_strdup(output_info->name);
 285                                         XRRFreeOutputInfo(output_info);
 286                                 }
 287                                 server.monitor[i].names[j] = 0;
 288                                 XRRFreeCrtcInfo(crtc_info);
 289                         }
 290                         nbmonitor = res->ncrtc;
 291                 }
 292                 else if (info && nbmonitor > 0) {
 293                         server.monitor = malloc(nbmonitor * sizeof(Monitor));
 294                         for (i=0 ; i < nbmonitor ; i++) {
 295                                 server.monitor[i].x = info[i].x_org;
 296                                 server.monitor[i].y = info[i].y_org;
 297                                 server.monitor[i].width = info[i].width;
 298                                 server.monitor[i].height = info[i].height;
 299                                 server.monitor[i].names = 0;
 300                         }
 301                 }
 302
 303                 // ordered monitor
 304                 qsort(server.monitor, nbmonitor, sizeof(Monitor), compareMonitorIncluded);
 305
 306                 // remove monitor included into another one
 307                 i = 0;
 308                 while (i < nbmonitor) {
 309                         for (j=0; j < i ; j++) {
 310                                 if (compareMonitorIncluded(&server.monitor[i], &server.monitor[j]) > 0) {
 311                                         goto next;
 312                                 }
 313                         }
 314                         i++;
 315                 }
 316 next:
 317                 for (j=i; j<server.nb_monitor; ++j)
 318                         g_strfreev(server.monitor[j].names);
 319                 server.nb_monitor = i;
 320                 server.monitor = realloc(server.monitor, server.nb_monitor * sizeof(Monitor));
 321                 qsort(server.monitor, server.nb_monitor, sizeof(Monitor), compareMonitorPos);
 322
 323                 XRRFreeScreenResources(res);
 324                 XFree(info);
 325         }
 326
 327         if (!server.nb_monitor) {
 328                 server.nb_monitor = 1;
 329                 server.monitor = malloc(sizeof(Monitor));
 330                 server.monitor[0].x = server.monitor[0].y = 0;
 331                 server.monitor[0].width = DisplayWidth (server.dsp, server.screen);
 332                 server.monitor[0].height = DisplayHeight (server.dsp, server.screen);
 333         }
 334 }
 335
 336
 337 void get_desktops()
 338 {
 339         int i;
 340
 341         // detect number of desktops
 342         // wait 15s to leave some time for window manager startup
 343         for (i=0 ; i < 15 ; i++) {
 344                 server.nb_desktop = server_get_number_of_desktop ();
 345                 if (server.nb_desktop > 0) break;
 346                 sleep(1);
 347         }
 348         if (server.nb_desktop == 0) {
 349                 server.nb_desktop = 1;
 350                 fprintf(stderr, "warning : WM doesn't respect NETWM specs. tint2 default to 1 desktop.\n");
 351         }
 352 }
 353
 354
 355 void server_init_visual()
 356 {
 357         // inspired by freedesktops fdclock ;)
 358         XVisualInfo *xvi;
 359         XVisualInfo templ = { .screen=server.screen, .depth=32, .class=TrueColor };
 360         int nvi;
 361         xvi = XGetVisualInfo(server.dsp, VisualScreenMask|VisualDepthMask|VisualClassMask, &templ, &nvi);
 362
 363         Visual *visual = 0;
 364         if (xvi) {
 365                 int i;
 366                 XRenderPictFormat *format;
 367                 for (i = 0; i < nvi; i++) {
 368                         format = XRenderFindVisualFormat(server.dsp, xvi[i].visual);
 369                         if (format->type == PictTypeDirect && format->direct.alphaMask) {
 370                                 visual = xvi[i].visual;
 371                                 break;
 372                         }
 373                 }
 374         }
 375         XFree (xvi);
 376
 377         // check composite manager
 378         server.composite_manager = XGetSelectionOwner(server.dsp, server.atom._NET_WM_CM_S0);
 379         if (server.colormap)
 380                 XFreeColormap(server.dsp, server.colormap);
 381         if (server.colormap32)
 382                 XFreeColormap(server.dsp, server.colormap32);
 383
 384         if (visual) {
 385                 server.visual32 = visual;
 386                 server.colormap32 = XCreateColormap(server.dsp, server.root_win, visual, AllocNone);
 387         }
 388
 389         if (visual && server.composite_manager != None && snapshot_path == 0) {
 390                 XSetWindowAttributes attrs;
 391                 attrs.event_mask = StructureNotifyMask;
 392                 XChangeWindowAttributes (server.dsp, server.composite_manager, CWEventMask, &attrs);
 393
 394                 real_transparency = 1;
 395                 server.depth = 32;
 396                 printf("real transparency on... depth: %d\n", server.depth);
 397                 server.colormap = XCreateColormap(server.dsp, server.root_win, visual, AllocNone);
 398                 server.visual = visual;
 399         }
 400         else {
 401                 // no composite manager or snapshot mode => fake transparency
 402                 real_transparency = 0;
 403                 server.depth = DefaultDepth(server.dsp, server.screen);
 404                 printf("real transparency off.... depth: %d\n", server.depth);
 405                 server.colormap = DefaultColormap(server.dsp, server.screen);
 406                 server.visual = DefaultVisual(server.dsp, server.screen);
 407         }
 408 }