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