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