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