layout.c

   1 /*
   2  * layout.c - layout management
   3  *
   4  * Copyright © 2007 Julien Danjou <julien@danjou.info>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  */
  21
  22 #include <X11/Xatom.h>
  23 #include <X11/Xutil.h>
  24
  25 #include "tag.h"
  26 #include "util.h"
  27 #include "xutil.h"
  28 #include "focus.h"
  29 #include "widget.h"
  30 #include "window.h"
  31 #include "ewmh.h"
  32 #include "client.h"
  33 #include "screen.h"
  34 #include "layouts/tile.h"
  35 #include "layouts/max.h"
  36 #include "layouts/fibonacci.h"
  37 #include "layouts/floating.h"
  38
  39 extern AwesomeConf globalconf;
  40
  41 const NameFuncLink LayoutsList[] =
  42 {
  43     {"tile", layout_tile},
  44     {"tileleft", layout_tileleft},
  45     {"max", layout_max},
  46     {"spiral", layout_spiral},
  47     {"dwindle", layout_dwindle},
  48     {"floating", layout_floating},
  49     {NULL, NULL}
  50 };
  51
  52 /** Arrange windows following current selected layout
  53  * \param screen the screen to arrange
  54  */
  55 void
  56 arrange(int screen)
  57 {
  58     Client *c;
  59     Tag **curtags = get_current_tags(screen);
  60     Window client_win, root_win;
  61     int x, y, d;
  62     unsigned int m;
  63
  64     for(c = globalconf.clients; c; c = c->next)
  65     {
  66         if(client_isvisible(c, screen))
  67             client_unban(c);
  68         /* we don't touch other screens windows */
  69         else if(c->screen == screen)
  70             client_ban(c);
  71     }
  72
  73     curtags[0]->layout->arrange(screen);
  74     c = focus_get_current_client(screen);
  75     focus(c, True, screen);
  76     if(c && XQueryPointer(globalconf.display, RootWindow(globalconf.display, screen),
  77                           &root_win, &client_win, &x, &y, &d, &d, &m) &&
  78             (root_win == None || client_win == None || client_win == root_win))
  79             window_grabbuttons(c->screen, c->win, False, False);
  80
  81     p_delete(&curtags);
  82     restack(screen);
  83 }
  84
  85
  86 Layout *
  87 get_current_layout(int screen)
  88 {
  89     Tag **curtags = get_current_tags(screen);
  90     Layout *l = curtags[0]->layout;
  91     p_delete(&curtags);
  92     return l;
  93 }
  94
  95 /** Send focus to next client in stack
  96  * \param screen Screen ID
  97  * \param arg Unused
  98  * \ingroup ui_callback
  99  */
 100 void
 101 uicb_client_focusnext(int screen, char *arg __attribute__ ((unused)))
 102 {
 103     Client *c, *sel = globalconf.focus->client;
 104
 105     if(!sel)
 106         return;
 107     for(c = sel->next; c && (c->skip || !client_isvisible(c, screen)); c = c->next);
 108     if(!c)
 109         for(c = globalconf.clients; c && (c->skip || !client_isvisible(c, screen)); c = c->next);
 110     if(c)
 111     {
 112         focus(c, True, screen);
 113         restack(screen);
 114     }
 115 }
 116
 117 /** Send focus to previous client in stack
 118  * \param screen Screen ID
 119  * \param arg Unused
 120  * \ingroup ui_callback
 121  */
 122 void
 123 uicb_client_focusprev(int screen, char *arg __attribute__ ((unused)))
 124 {
 125     Client *c, *sel = globalconf.focus->client;
 126
 127     if(!sel)
 128         return;
 129     for(c = sel->prev; c && (c->skip || !client_isvisible(c, screen)); c = c->prev);
 130     if(!c)
 131     {
 132         for(c = globalconf.clients; c && c->next; c = c->next);
 133         for(; c && (c->skip || !client_isvisible(c, screen)); c = c->prev);
 134     }
 135     if(c)
 136     {
 137         focus(c, True, screen);
 138         restack(screen);
 139     }
 140 }
 141
 142 void
 143 loadawesomeprops(int screen)
 144 {
 145     int i, ntags = 0;
 146     char *prop;
 147     Tag *tag;
 148
 149     for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 150         ntags++;
 151
 152     prop = p_new(char, ntags + 1);
 153
 154     if(xgettextprop(RootWindow(globalconf.display, get_phys_screen(screen)),
 155                     XInternAtom(globalconf.display, "_AWESOME_PROPERTIES", False),
 156                     prop, ntags + 1))
 157         for(i = 0, tag = globalconf.screens[screen].tags; tag && prop[i]; i++, tag = tag->next)
 158             if(prop[i] == '1')
 159                 tag->selected = True;
 160             else
 161                 tag->selected = False;
 162
 163     p_delete(&prop);
 164
 165     ewmh_update_net_current_desktop(get_phys_screen(screen));
 166 }
 167
 168 void
 169 restack(int screen)
 170 {
 171     Client *c, *sel = globalconf.focus->client;
 172     XWindowChanges wc;
 173     Tag **curtags;
 174
 175     if(!sel)
 176         return;
 177
 178     if(globalconf.screens[screen].allow_lower_floats)
 179         XRaiseWindow(globalconf.display, sel->win);
 180     else
 181     {
 182         curtags = get_current_tags(screen);
 183         if(sel->isfloating ||
 184            curtags[0]->layout->arrange == layout_floating)
 185             XRaiseWindow(globalconf.display, sel->win);
 186         if(!(curtags[0]->layout->arrange == layout_floating))
 187         {
 188             wc.stack_mode = Below;
 189             if(!sel->isfloating)
 190                 XConfigureWindow(globalconf.display, sel->win, CWStackMode, &wc);
 191             for(c = globalconf.clients; c; c = c->next)
 192             {
 193                 if(!IS_TILED(c, screen) || c == sel)
 194                     continue;
 195                 XConfigureWindow(globalconf.display, c->win, CWStackMode, &wc);
 196             }
 197         }
 198         p_delete(&curtags);
 199     }
 200     if(globalconf.screens[screen].focus_move_pointer)
 201         XWarpPointer(globalconf.display, None, sel->win, 0, 0, 0, 0,
 202                      sel->geometry.width / 2, sel->geometry.height / 2);
 203     XSync(globalconf.display, False);
 204 }
 205
 206 void
 207 saveawesomeprops(int screen)
 208 {
 209     int i, ntags = 0;
 210     char *prop;
 211     Tag *tag;
 212
 213     for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 214         ntags++;
 215
 216     prop = p_new(char, ntags + 1);
 217
 218     for(i = 0, tag = globalconf.screens[screen].tags; tag; tag = tag->next, i++)
 219         prop[i] = tag->selected ? '1' : '0';
 220
 221     prop[i] = '\0';
 222     XChangeProperty(globalconf.display,
 223                     RootWindow(globalconf.display, get_phys_screen(screen)),
 224                     XInternAtom(globalconf.display, "_AWESOME_PROPERTIES", False),
 225                     XA_STRING, 8, PropModeReplace, (unsigned char *) prop, i);
 226     p_delete(&prop);
 227 }
 228
 229 /** Set layout for tag
 230  * \param screen Screen ID
 231  * \param arg Layout specifier
 232  * \ingroup ui_callback
 233  */
 234 void
 235 uicb_tag_setlayout(int screen, char *arg)
 236 {
 237     Layout *l = globalconf.screens[screen].layouts;
 238     Tag *tag, **curtags;
 239     int i;
 240
 241     if(arg)
 242     {
 243         curtags = get_current_tags(screen);
 244         for(i = 0; l && l != curtags[0]->layout; i++, l = l->next);
 245         p_delete(&curtags);
 246
 247         if(!l)
 248             i = 0;
 249
 250         i = compute_new_value_from_arg(arg, (double) i);
 251
 252         if(i >= 0)
 253             for(l = globalconf.screens[screen].layouts; l && i > 0; i--)
 254                  l = l->next;
 255         else
 256             for(l = globalconf.screens[screen].layouts; l && i < 0; i++)
 257                  l = l->prev;
 258
 259         if(!l)
 260             l = globalconf.screens[screen].layouts;
 261     }
 262
 263     for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 264         if(tag->selected)
 265             tag->layout = l;
 266
 267     if(globalconf.focus->client)
 268         arrange(screen);
 269
 270     widget_invalidate_cache(screen, WIDGET_CACHE_LAYOUTS);
 271
 272     saveawesomeprops(screen);
 273 }
 274
 275 /** Toggle floating state of a client
 276  * \param screen Screen ID
 277  * \param arg unused
 278  * \ingroup ui_callback
 279  */
 280 void
 281 uicb_client_togglefloating(int screen, char *arg)
 282 {
 283     Client *sel = globalconf.focus->client;
 284
 285     if(!sel)
 286         return;
 287
 288     if((sel->isfloating = !sel->isfloating))
 289     {
 290         if(!arg)
 291             client_resize(sel, sel->f_geometry, False);
 292     }
 293     else if(sel->ismax)
 294         client_resize(sel, sel->m_geometry, False);
 295
 296     widget_invalidate_cache(sel->screen, WIDGET_CACHE_CLIENTS);
 297     client_saveprops(sel);
 298     arrange(screen);
 299 }
 300
 301 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80