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 name_func_link_t 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) && !c->newcomer)
  67             client_unban(c);
  68         /* we don't touch other screens windows */
  69         else if(c->screen == screen || c->newcomer)
  70             client_ban(c);
  71     }
  72
  73     curtags[0]->layout->arrange(screen);
  74     for(c = globalconf.clients; c; c = c->next)
  75         if(c->newcomer && client_isvisible(c, screen))
  76         {
  77             c->newcomer = False;
  78             client_unban(c);
  79         }
  80     c = focus_get_current_client(screen);
  81     focus(c, True, screen);
  82     if(c && XQueryPointer(globalconf.display, RootWindow(globalconf.display, get_phys_screen(screen)),
  83                           &root_win, &client_win, &x, &y, &d, &d, &m) &&
  84             (root_win == None || client_win == None || client_win == root_win))
  85             window_grabbuttons(c->screen, c->win, False, False);
  86
  87     p_delete(&curtags);
  88     restack(screen);
  89 }
  90
  91
  92 Layout *
  93 get_current_layout(int screen)
  94 {
  95     Tag **curtags = get_current_tags(screen);
  96     Layout *l = curtags[0]->layout;
  97     p_delete(&curtags);
  98     return l;
  99 }
 100
 101 /** Send focus to next client in stack
 102  * \param screen Screen ID
 103  * \param arg Unused
 104  * \ingroup ui_callback
 105  */
 106 void
 107 uicb_client_focusnext(int screen, char *arg __attribute__ ((unused)))
 108 {
 109     Client *c, *sel = globalconf.focus->client;
 110
 111     if(!sel)
 112         return;
 113     for(c = sel->next; c && (c->skip || !client_isvisible(c, screen)); c = c->next);
 114     if(!c)
 115         for(c = globalconf.clients; c && (c->skip || !client_isvisible(c, screen)); c = c->next);
 116     if(c)
 117     {
 118         focus(c, True, screen);
 119         restack(screen);
 120     }
 121 }
 122
 123 /** Send focus to previous client in stack
 124  * \param screen Screen ID
 125  * \param arg Unused
 126  * \ingroup ui_callback
 127  */
 128 void
 129 uicb_client_focusprev(int screen, char *arg __attribute__ ((unused)))
 130 {
 131     Client *prev;
 132
 133     if((prev = client_find_prev_visible(globalconf.focus->client)))
 134     {
 135         focus(prev, True, screen);
 136         restack(screen);
 137     }
 138 }
 139
 140 void
 141 loadawesomeprops(int screen)
 142 {
 143     int i, ntags = 0;
 144     char *prop;
 145     Tag *tag;
 146
 147     for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 148         ntags++;
 149
 150     prop = p_new(char, ntags + 1);
 151
 152     if(xgettextprop(RootWindow(globalconf.display, get_phys_screen(screen)),
 153                     XInternAtom(globalconf.display, "_AWESOME_PROPERTIES", False),
 154                     prop, ntags + 1))
 155         for(i = 0, tag = globalconf.screens[screen].tags; tag && prop[i]; i++, tag = tag->next)
 156             if(prop[i] == '1')
 157                 tag->selected = True;
 158             else
 159                 tag->selected = False;
 160
 161     p_delete(&prop);
 162
 163     ewmh_update_net_current_desktop(get_phys_screen(screen));
 164 }
 165
 166 void
 167 restack(int screen)
 168 {
 169     Client *c, *sel = globalconf.focus->client;
 170     XWindowChanges wc;
 171     Tag **curtags;
 172
 173     if(!sel)
 174         return;
 175
 176     if(globalconf.screens[screen].allow_lower_floats)
 177         XRaiseWindow(globalconf.display, sel->win);
 178     else
 179     {
 180         curtags = get_current_tags(screen);
 181         if(sel->isfloating ||
 182            curtags[0]->layout->arrange == layout_floating)
 183             XRaiseWindow(globalconf.display, sel->win);
 184         if(!(curtags[0]->layout->arrange == layout_floating))
 185         {
 186             wc.stack_mode = Below;
 187             if(!sel->isfloating)
 188                 XConfigureWindow(globalconf.display, sel->win, CWStackMode, &wc);
 189             for(c = globalconf.clients; c; c = c->next)
 190             {
 191                 if(!IS_TILED(c, screen) || c == sel)
 192                     continue;
 193                 XConfigureWindow(globalconf.display, c->win, CWStackMode, &wc);
 194             }
 195         }
 196         p_delete(&curtags);
 197     }
 198     if(globalconf.screens[screen].focus_move_pointer)
 199         XWarpPointer(globalconf.display, None, sel->win, 0, 0, 0, 0,
 200                      sel->geometry.width / 2, sel->geometry.height / 2);
 201 }
 202
 203 void
 204 saveawesomeprops(int screen)
 205 {
 206     int i, ntags = 0;
 207     char *prop;
 208     Tag *tag;
 209
 210     for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 211         ntags++;
 212
 213     prop = p_new(char, ntags + 1);
 214
 215     for(i = 0, tag = globalconf.screens[screen].tags; tag; tag = tag->next, i++)
 216         prop[i] = tag->selected ? '1' : '0';
 217
 218     prop[i] = '\0';
 219     XChangeProperty(globalconf.display,
 220                     RootWindow(globalconf.display, get_phys_screen(screen)),
 221                     XInternAtom(globalconf.display, "_AWESOME_PROPERTIES", False),
 222                     XA_STRING, 8, PropModeReplace, (unsigned char *) prop, i);
 223     p_delete(&prop);
 224 }
 225
 226 /** Set layout for tag
 227  * \param screen Screen ID
 228  * \param arg Layout specifier
 229  * \ingroup ui_callback
 230  */
 231 void
 232 uicb_tag_setlayout(int screen, char *arg)
 233 {
 234     Layout *l = globalconf.screens[screen].layouts;
 235     Tag *tag, **curtags;
 236     int i;
 237
 238     if(arg)
 239     {
 240         curtags = get_current_tags(screen);
 241         for(i = 0; l && l != curtags[0]->layout; i++, l = l->next);
 242         p_delete(&curtags);
 243
 244         if(!l)
 245             i = 0;
 246
 247         i = compute_new_value_from_arg(arg, (double) i);
 248
 249         if(i >= 0)
 250             for(l = globalconf.screens[screen].layouts; l && i > 0; i--)
 251                  l = l->next;
 252         else
 253             for(l = globalconf.screens[screen].layouts; l && i < 0; i++)
 254                  l = l->prev;
 255
 256         if(!l)
 257             l = globalconf.screens[screen].layouts;
 258     }
 259
 260     for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 261         if(tag->selected)
 262             tag->layout = l;
 263
 264     if(globalconf.focus->client)
 265         arrange(screen);
 266
 267     widget_invalidate_cache(screen, WIDGET_CACHE_LAYOUTS);
 268
 269     saveawesomeprops(screen);
 270 }
 271
 272 /** Toggle floating state of a client
 273  * \param screen Screen ID
 274  * \param arg unused
 275  * \ingroup ui_callback
 276  */
 277 void
 278 uicb_client_togglefloating(int screen, char *arg)
 279 {
 280     Client *sel = globalconf.focus->client;
 281
 282     if(!sel)
 283         return;
 284
 285     if((sel->isfloating = !sel->isfloating))
 286     {
 287         if(!arg)
 288             client_resize(sel, sel->f_geometry, False);
 289     }
 290     else if(sel->ismax)
 291         client_resize(sel, sel->m_geometry, False);
 292
 293     widget_invalidate_cache(sel->screen, WIDGET_CACHE_CLIENTS);
 294     client_saveprops(sel);
 295     arrange(screen);
 296 }
 297
 298 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80