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