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