titlebar.c

   1 /*
   2  * titlebar.c - titlebar management
   3  *
   4  * Copyright © 2008 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 <xcb/xcb.h>
  23
  24 #include "titlebar.h"
  25 #include "client.h"
  26 #include "widget.h"
  27 #include "wibox.h"
  28 #include "screen.h"
  29
  30 /** Get a client by its titlebar.
  31  * \param titlebar The titlebar.
  32  * \return A client.
  33  */
  34 client_t *
  35 client_getbytitlebar(wibox_t *titlebar)
  36 {
  37     foreach(c, globalconf.clients)
  38         if((*c)->titlebar == titlebar)
  39             return *c;
  40
  41     return NULL;
  42 }
  43
  44 /** Get a client by its titlebar window.
  45  * \param win The window.
  46  * \return A client.
  47  */
  48 client_t *
  49 client_getbytitlebarwin(xcb_window_t win)
  50 {
  51     foreach(c, globalconf.clients)
  52         if((*c)->titlebar && (*c)->titlebar->window == win)
  53             return *c;
  54
  55     return NULL;
  56 }
  57
  58 /** Move a titlebar out of the viewport.
  59  * \param titlebar The titlebar.
  60  */
  61 void
  62 titlebar_ban(wibox_t *titlebar)
  63 {
  64     /* Do it manually because client geometry remains unchanged. */
  65     if(titlebar && !titlebar->isbanned)
  66     {
  67         client_t *c;
  68
  69         if(titlebar->window)
  70             xcb_unmap_window(globalconf.connection, titlebar->window);
  71
  72         /* Remove titlebar geometry from client. */
  73         if((c = client_getbytitlebar(titlebar)))
  74             c->geometry = titlebar_geometry_remove(titlebar, 0, c->geometry);
  75
  76         titlebar->isbanned = true;
  77     }
  78 }
  79
  80 /** Move a titlebar on top of its client.
  81  * \param titlebar The titlebar.
  82  */
  83 void
  84 titlebar_unban(wibox_t *titlebar)
  85 {
  86     /* Do this manually because the system doesn't know we moved the toolbar.
  87      * Note that !isvisible titlebars are unmapped and for fullscreen it'll
  88      * end up offscreen anyway. */
  89     if(titlebar && titlebar->isbanned)
  90     {
  91         client_t *c;
  92
  93         if(titlebar->window)
  94             xcb_map_window(globalconf.connection, titlebar->window);
  95
  96         titlebar->isbanned = false;
  97
  98         /* Add titlebar geometry from client. */
  99         if((c = client_getbytitlebar(titlebar)))
 100             c->geometry = titlebar_geometry_add(titlebar, 0, c->geometry);
 101     }
 102 }
 103
 104 /** Get titlebar area.
 105  * \param c The client
 106  * \param geometry The client geometry including borders, excluding titlebars.
 107  * \param res Pointer to area of titlebar, must be allocated already.
 108  */
 109 void
 110 titlebar_geometry_compute(client_t *c, area_t geometry, area_t *res)
 111 {
 112     int height, width, x_offset = 0, y_offset = 0;
 113
 114     switch(c->titlebar->position)
 115     {
 116       default:
 117         return;
 118       case Top:
 119         width = MAX(1, geometry.width);
 120         switch(c->titlebar->align)
 121         {
 122           default:
 123             break;
 124           case AlignRight:
 125             x_offset = geometry.width - width;
 126             break;
 127           case AlignCenter:
 128             x_offset = (geometry.width - width) / 2;
 129             break;
 130         }
 131         res->x = geometry.x + x_offset;
 132         res->y = geometry.y - c->titlebar->geometry.height;
 133         res->width = width;
 134         res->height = c->titlebar->geometry.height;
 135         break;
 136       case Bottom:
 137         width = MAX(1, geometry.width);
 138         switch(c->titlebar->align)
 139         {
 140           default:
 141             break;
 142           case AlignRight:
 143             x_offset = geometry.width - width;
 144             break;
 145           case AlignCenter:
 146             x_offset = (geometry.width - width) / 2;
 147             break;
 148         }
 149         res->x = geometry.x + x_offset;
 150         res->y = geometry.y + geometry.height;
 151         res->width = width;
 152         res->height = c->titlebar->geometry.height;
 153         break;
 154       case Left:
 155         height = MAX(1, geometry.height);
 156         switch(c->titlebar->align)
 157         {
 158           default:
 159             break;
 160           case AlignRight:
 161             y_offset = geometry.height - height;
 162             break;
 163           case AlignCenter:
 164             y_offset = (geometry.height - height) / 2;
 165             break;
 166         }
 167         res->x = geometry.x - c->titlebar->geometry.width;
 168         res->y = geometry.y + y_offset;
 169         res->width = c->titlebar->geometry.width;
 170         res->height = height;
 171         break;
 172       case Right:
 173         height = MAX(1, geometry.height);
 174         switch(c->titlebar->align)
 175         {
 176           default:
 177             break;
 178           case AlignRight:
 179             y_offset = geometry.height - height;
 180             break;
 181           case AlignCenter:
 182             y_offset = (geometry.height - height) / 2;
 183             break;
 184         }
 185         res->x = geometry.x + geometry.width;
 186         res->y = geometry.y + y_offset;
 187         res->width = c->titlebar->geometry.width;
 188         res->height = height;
 189         break;
 190     }
 191 }
 192
 193 /** Detach a wibox titlebar from its client.
 194  * \param c The client.
 195  */
 196 void
 197 titlebar_client_detach(client_t *c)
 198 {
 199     /* If client has a titlebar, kick it out. */
 200     if(c && c->titlebar)
 201     {
 202         /* Update client geometry to exclude the titlebar. */
 203         c->geometry = titlebar_geometry_remove(c->titlebar, 0, c->geometry);
 204         wibox_wipe(c->titlebar);
 205         c->titlebar->type = WIBOX_TYPE_NORMAL;
 206         c->titlebar->screen = NULL;
 207
 208         wibox_unref(globalconf.L, c->titlebar);
 209         c->titlebar = NULL;
 210
 211         hook_property(client, c, "titlebar");
 212         client_stack();
 213     }
 214 }
 215
 216 /** Attach a wibox to a client as its titlebar.
 217  * \param c The client.
 218  */
 219 void
 220 titlebar_client_attach(client_t *c)
 221 {
 222     /* check if we can register the object */
 223     wibox_t *t = wibox_ref(globalconf.L, -1);
 224
 225     titlebar_client_detach(c);
 226
 227     /* check if titlebar is already on a client */
 228     titlebar_client_detach(client_getbytitlebar(t));
 229
 230     /* check if client already has a titlebar. */
 231     titlebar_client_detach(c);
 232
 233     /* set the object as new client's titlebar */
 234     c->titlebar = t;
 235
 236     t->type = WIBOX_TYPE_TITLEBAR;
 237     t->screen = c->screen;
 238
 239     switch(t->position)
 240     {
 241       case Top:
 242       case Bottom:
 243         if(!t->geometry.height)
 244             t->geometry.height = 1.5 * globalconf.font->height;
 245         break;
 246       case Left:
 247       case Right:
 248         if(!t->geometry.width)
 249             t->geometry.width = 1.5 * globalconf.font->height;
 250         break;
 251     }
 252
 253     /* Update client geometry to include the titlebar. */
 254     c->geometry = titlebar_geometry_add(c->titlebar, 0, c->geometry);
 255
 256     /* Client geometry without titlebar, but including borders, since that is always consistent. */
 257     titlebar_geometry_compute(c, titlebar_geometry_remove(c->titlebar, 0, c->geometry), &t->geometry);
 258
 259     wibox_init(t, c->phys_screen);
 260
 261     t->need_update = true;
 262
 263     /* Call update geometry. This will move the wibox to the right place,
 264      * which might be the same as `wingeom', but then it will ban the
 265      * titlebar if needed. */
 266     titlebar_update_geometry(c);
 267
 268     xcb_map_window(globalconf.connection, t->window);
 269
 270     hook_property(client, c, "titlebar");
 271     client_stack();
 272 }
 273
 274 /** Map or unmap a titlebar wibox.
 275  * \param t The wibox/titlebar.
 276  * \param visible The new state of the titlebar.
 277  */
 278 void
 279 titlebar_set_visible(wibox_t *t, bool visible)
 280 {
 281     if(visible != t->isvisible)
 282     {
 283         if((t->isvisible = visible))
 284             titlebar_unban(t);
 285         else
 286             titlebar_ban(t);
 287
 288         hook_property(wibox, t, "visible");
 289         client_stack();
 290     }
 291 }
 292
 293 /** Titlebar newindex.
 294  * \param L The Lua VM state.
 295  * \param titlebar The wibox titlebar.
 296  * \param tok The attribute token.
 297  * \return The number of elements pushed on stack.
 298  */
 299 int
 300 luaA_titlebar_newindex(lua_State *L, wibox_t *titlebar, awesome_token_t tok)
 301 {
 302     client_t *c = NULL;
 303
 304     switch(tok)
 305     {
 306         position_t position;
 307         int i;
 308         size_t len;
 309         const char *buf;
 310
 311       case A_TK_ALIGN:
 312         if((buf = luaL_checklstring(L, 3, &len)))
 313             titlebar->align = draw_align_fromstr(buf, len);
 314         else
 315             return 0;
 316         break;
 317       case A_TK_BORDER_WIDTH:
 318         if((i = luaL_checknumber(L, 3)) >= 0)
 319             wibox_border_width_set(titlebar, i);
 320         else
 321             return 0;
 322         break;
 323       case A_TK_BORDER_COLOR:
 324         if((buf = luaL_checklstring(L, 3, &len)))
 325             if(xcolor_init_reply(xcolor_init_unchecked(&titlebar->border.color, buf, len)))
 326                 wibox_border_color_set(titlebar, &titlebar->border.color);
 327         return 0;
 328       case A_TK_POSITION:
 329         buf = luaL_checklstring(L, 3, &len);
 330         position = position_fromstr(buf, len);
 331         if(position != titlebar->position)
 332         {
 333             switch(position)
 334             {
 335               case Left:
 336                 switch(titlebar->position)
 337                 {
 338                     int tmp;
 339                   case Left:
 340                   case Right:
 341                     break;
 342                   case Top:
 343                   case Bottom:
 344                     tmp = titlebar->geometry.width;
 345                     titlebar->geometry.width = titlebar->geometry.height;
 346                     titlebar->geometry.height = tmp;
 347                     break;
 348                 }
 349                 wibox_orientation_set(titlebar, North);
 350                 break;
 351               case Right:
 352                 switch(titlebar->position)
 353                 {
 354                     int tmp;
 355                   case Left:
 356                   case Right:
 357                     break;
 358                   case Top:
 359                   case Bottom:
 360                     tmp = titlebar->geometry.width;
 361                     titlebar->geometry.width = titlebar->geometry.height;
 362                     titlebar->geometry.height = tmp;
 363                     break;
 364                 }
 365                 wibox_orientation_set(titlebar, South);
 366                 break;
 367               case Top:
 368               case Bottom:
 369                 switch(titlebar->position)
 370                 {
 371                     int tmp;
 372                   case Left:
 373                   case Right:
 374                     tmp = titlebar->geometry.width;
 375                     titlebar->geometry.width = titlebar->geometry.height;
 376                     titlebar->geometry.height = tmp;
 377                     break;
 378                   case Top:
 379                   case Bottom:
 380                     break;
 381                 }
 382                 wibox_orientation_set(titlebar, East);
 383                 break;
 384             }
 385             titlebar->position = position;
 386             if((c = client_getbytitlebar(titlebar)))
 387             {
 388                 titlebar_update_geometry(c);
 389                 /* call geometry hook for client because some like to
 390                  * set titlebar width in that hook, which make sense */
 391                 hook_property(client, c, "geometry");
 392             }
 393         }
 394         break;
 395       default:
 396         return 0;
 397     }
 398
 399     return 0;
 400 }
 401
 402 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80