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