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 extern awesome_t globalconf;
  31
  32 /** Get a client by its titlebar.
  33  * \param titlebar The titlebar.
  34  * \return A client.
  35  */
  36 client_t *
  37 client_getbytitlebar(wibox_t *titlebar)
  38 {
  39     client_t *c;
  40
  41     for(c = globalconf.clients; c; c = c->next)
  42         if(c->titlebar == titlebar)
  43             return c;
  44
  45     return NULL;
  46 }
  47
  48 /** Get a client by its titlebar window.
  49  * \param win The window.
  50  * \return A client.
  51  */
  52 client_t *
  53 client_getbytitlebarwin(xcb_window_t win)
  54 {
  55     client_t *c;
  56
  57     for(c = globalconf.clients; c; c = c->next)
  58         if(c->titlebar && c->titlebar->sw.window == win)
  59             return c;
  60
  61     return NULL;
  62 }
  63
  64 /** Move a titlebar out of the viewport.
  65  * \param titlebar The titlebar.
  66  */
  67 void
  68 titlebar_ban(wibox_t *titlebar)
  69 {
  70     /* Do it manually because client geometry remains unchanged. */
  71     if(titlebar && !titlebar->isbanned)
  72     {
  73         client_t *c;
  74         simple_window_t *sw = &titlebar->sw;
  75
  76         if(sw->window)
  77         {
  78             uint32_t request[] = { - sw->geometry.width, - sw->geometry.height };
  79             /* Move the titlebar to the same place as the window. */
  80             xcb_configure_window(globalconf.connection, sw->window,
  81                                  XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y,
  82                                  request);
  83         }
  84
  85         /* Remove titlebar geometry from client. */
  86         if((c = client_getbytitlebar(titlebar)))
  87             c->geometry = titlebar_geometry_remove(titlebar, 0, c->geometry);
  88
  89         titlebar->isbanned = true;
  90     }
  91 }
  92
  93 /** Move a titlebar on top of its client.
  94  * \param titlebar The titlebar.
  95  */
  96 void
  97 titlebar_unban(wibox_t *titlebar)
  98 {
  99     /* Do this manually because the system doesn't know we moved the toolbar.
 100      * Note that !isvisible titlebars are unmapped and for fullscreen it'll
 101      * end up offscreen anyway. */
 102     if(titlebar && titlebar->isbanned)
 103     {
 104         client_t *c;
 105         simple_window_t *sw = &titlebar->sw;
 106
 107         if(sw->window)
 108         {
 109             /* All resizing is done, so only move now. */
 110             uint32_t request[] = { sw->geometry.x, sw->geometry.y };
 111
 112             xcb_configure_window(globalconf.connection, sw->window,
 113                                 XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y,
 114                                 request);
 115         }
 116
 117         titlebar->isbanned = false;
 118
 119         /* Add titlebar geometry from client. */
 120         if((c = client_getbytitlebar(titlebar)))
 121             c->geometry = titlebar_geometry_add(titlebar, 0, c->geometry);
 122     }
 123 }
 124
 125 /** Get titlebar area.
 126  * \param c The client
 127  * \param geometry The client geometry including borders, excluding titlebars.
 128  * \param res Pointer to area of titlebar, must be allocated already.
 129  */
 130 void
 131 titlebar_geometry_compute(client_t *c, area_t geometry, area_t *res)
 132 {
 133     int height, width, x_offset = 0, y_offset = 0;
 134
 135     switch(c->titlebar->position)
 136     {
 137       default:
 138         return;
 139       case Top:
 140         width = MAX(1, geometry.width);
 141         switch(c->titlebar->align)
 142         {
 143           default:
 144             break;
 145           case AlignRight:
 146             x_offset = geometry.width - width;
 147             break;
 148           case AlignCenter:
 149             x_offset = (geometry.width - width) / 2;
 150             break;
 151         }
 152         res->x = geometry.x + x_offset;
 153         res->y = geometry.y - c->titlebar->sw.geometry.height;
 154         res->width = width;
 155         res->height = c->titlebar->sw.geometry.height;
 156         break;
 157       case Bottom:
 158         width = MAX(1, geometry.width);
 159         switch(c->titlebar->align)
 160         {
 161           default:
 162             break;
 163           case AlignRight:
 164             x_offset = geometry.width - width;
 165             break;
 166           case AlignCenter:
 167             x_offset = (geometry.width - width) / 2;
 168             break;
 169         }
 170         res->x = geometry.x + x_offset;
 171         res->y = geometry.y + geometry.height;
 172         res->width = width;
 173         res->height = c->titlebar->sw.geometry.height;
 174         break;
 175       case Left:
 176         height = MAX(1, geometry.height);
 177         switch(c->titlebar->align)
 178         {
 179           default:
 180             break;
 181           case AlignRight:
 182             y_offset = geometry.height - height;
 183             break;
 184           case AlignCenter:
 185             y_offset = (geometry.height - height) / 2;
 186             break;
 187         }
 188         res->x = geometry.x - c->titlebar->sw.geometry.width;
 189         res->y = geometry.y + y_offset;
 190         res->width = c->titlebar->sw.geometry.width;
 191         res->height = height;
 192         break;
 193       case Right:
 194         height = MAX(1, geometry.height);
 195         switch(c->titlebar->align)
 196         {
 197           default:
 198             break;
 199           case AlignRight:
 200             y_offset = geometry.height - height;
 201             break;
 202           case AlignCenter:
 203             y_offset = (geometry.height - height) / 2;
 204             break;
 205         }
 206         res->x = geometry.x + geometry.width;
 207         res->y = geometry.y + y_offset;
 208         res->width = c->titlebar->sw.geometry.width;
 209         res->height = height;
 210         break;
 211     }
 212 }
 213
 214 /** Detach a wibox titlebar from its client.
 215  * \param c The client.
 216  */
 217 void
 218 titlebar_client_detach(client_t *c)
 219 {
 220     /* If client has a titlebar, kick it out. */
 221     if(c && c->titlebar)
 222     {
 223         /* Update client geometry to exclude the titlebar. */
 224         c->geometry = titlebar_geometry_remove(c->titlebar, 0, c->geometry);
 225         simplewindow_wipe(&c->titlebar->sw);
 226         c->titlebar->type = WIBOX_TYPE_NORMAL;
 227         c->titlebar->screen = SCREEN_UNDEF;
 228         wibox_unref(&c->titlebar);
 229         c->titlebar = NULL;
 230         client_need_arrange(c);
 231         client_stack();
 232     }
 233 }
 234
 235 /** Attach a wibox to a client as its titlebar.
 236  * \param c The client.
 237  * \param t The wibox/titlebar.
 238  */
 239 void
 240 titlebar_client_attach(client_t *c, wibox_t *t)
 241 {
 242     titlebar_client_detach(c);
 243
 244     if(c && t)
 245     {
 246         area_t wingeom;
 247
 248         /* check if titlebar is already on a client */
 249         titlebar_client_detach(client_getbytitlebar(t));
 250
 251         /* check if client already has a titlebar. */
 252         titlebar_client_detach(c);
 253
 254         c->titlebar = wibox_ref(&t);
 255         t->type = WIBOX_TYPE_TITLEBAR;
 256         t->screen = c->screen;
 257
 258         switch(t->position)
 259         {
 260           case Floating:
 261             t->position = Top;
 262           case Top:
 263           case Bottom:
 264             if(!t->sw.geometry.height)
 265                 t->sw.geometry.height = 1.5 * globalconf.font->height;
 266             break;
 267           case Left:
 268           case Right:
 269             if(!t->sw.geometry.width)
 270                 t->sw.geometry.width = 1.5 * globalconf.font->height;
 271             break;
 272         }
 273
 274         /* Update client geometry to include the titlebar. */
 275         c->geometry = titlebar_geometry_add(c->titlebar, 0, c->geometry);
 276
 277         /* Client geometry without titlebar, but including borders, since that is always consistent. */
 278         titlebar_geometry_compute(c, titlebar_geometry_remove(c->titlebar, 0, c->geometry), &wingeom);
 279
 280         simplewindow_init(&t->sw, c->phys_screen,
 281                           wingeom, 0, t->sw.orientation,
 282                           &t->sw.ctx.fg, &t->sw.ctx.bg);
 283         simplewindow_border_color_set(&t->sw, &t->sw.border.color);
 284
 285         t->need_update = true;
 286
 287         /* Call update geometry. This will move the wibox to the right place,
 288          * which might be the same as `wingeom', but then it will ban the
 289          * titlebar if needed. */
 290         titlebar_update_geometry(c);
 291
 292         xcb_map_window(globalconf.connection, t->sw.window);
 293
 294         client_need_arrange(c);
 295         client_stack();
 296     }
 297 }
 298
 299 /** Map or unmap a titlebar wibox.
 300  * \param t The wibox/titlebar.
 301  * \param visible The new state of the titlebar.
 302  */
 303 void
 304 titlebar_set_visible(wibox_t *t, bool visible)
 305 {
 306     if(visible != t->isvisible)
 307     {
 308         if((t->isvisible = visible))
 309             titlebar_unban(t);
 310         else
 311             titlebar_ban(t);
 312
 313         globalconf.screens[t->screen].need_arrange = true;
 314         client_stack();
 315     }
 316 }
 317
 318 /** Titlebar newindex.
 319  * \param L The Lua VM state.
 320  * \param titlebar The wibox titlebar.
 321  * \param tok The attribute token.
 322  * \return The number of elements pushed on stack.
 323  */
 324 int
 325 luaA_titlebar_newindex(lua_State *L, wibox_t *titlebar, awesome_token_t tok)
 326 {
 327     client_t *c = NULL;
 328
 329     switch(tok)
 330     {
 331         position_t position;
 332         int i;
 333         size_t len;
 334         const char *buf;
 335
 336       case A_TK_ALIGN:
 337         if((buf = luaL_checklstring(L, 3, &len)))
 338             titlebar->align = draw_align_fromstr(buf, len);
 339         else
 340             return 0;
 341         break;
 342       case A_TK_BORDER_WIDTH:
 343         if((i = luaL_checknumber(L, 3)) >= 0)
 344             simplewindow_border_width_set(&titlebar->sw, i);
 345         else
 346             return 0;
 347         break;
 348       case A_TK_BORDER_COLOR:
 349         if((buf = luaL_checklstring(L, 3, &len)))
 350             if(xcolor_init_reply(xcolor_init_unchecked(&titlebar->sw.border.color, buf, len)))
 351                 simplewindow_border_color_set(&titlebar->sw, &titlebar->sw.border.color);
 352         return 0;
 353       case A_TK_POSITION:
 354         buf = luaL_checklstring(L, 3, &len);
 355         position = position_fromstr(buf, len);
 356         if(position != titlebar->position)
 357         {
 358             switch(position)
 359             {
 360               case Left:
 361                 switch(titlebar->position)
 362                 {
 363                     int tmp;
 364                   case Left:
 365                   case Right:
 366                     break;
 367                   case Top:
 368                   case Bottom:
 369                   case Floating:
 370                     tmp = titlebar->sw.geometry.width;
 371                     titlebar->sw.geometry.width = titlebar->sw.geometry.height;
 372                     titlebar->sw.geometry.height = tmp;
 373                     break;
 374                 }
 375                 simplewindow_orientation_set(&titlebar->sw, North);
 376                 break;
 377               case Right:
 378                 switch(titlebar->position)
 379                 {
 380                     int tmp;
 381                   case Left:
 382                   case Right:
 383                     break;
 384                   case Top:
 385                   case Bottom:
 386                   case Floating:
 387                     tmp = titlebar->sw.geometry.width;
 388                     titlebar->sw.geometry.width = titlebar->sw.geometry.height;
 389                     titlebar->sw.geometry.height = tmp;
 390                     break;
 391                 }
 392                 simplewindow_orientation_set(&titlebar->sw, South);
 393                 break;
 394               case Top:
 395               case Bottom:
 396               case Floating:
 397                 switch(titlebar->position)
 398                 {
 399                     int tmp;
 400                   case Left:
 401                   case Right:
 402                     tmp = titlebar->sw.geometry.width;
 403                     titlebar->sw.geometry.width = titlebar->sw.geometry.height;
 404                     titlebar->sw.geometry.height = tmp;
 405                     break;
 406                   case Top:
 407                   case Bottom:
 408                   case Floating:
 409                     break;
 410                 }
 411                 simplewindow_orientation_set(&titlebar->sw, East);
 412                 break;
 413             }
 414             titlebar->position = position;
 415             if((c = client_getbytitlebar(titlebar)))
 416             {
 417                 titlebar_update_geometry(c);
 418                 /* call geometry hook for client because some like to
 419                  * set titlebar width in that hook, which make sense */
 420                 hooks_property(c, "geometry");
 421             }
 422         }
 423         break;
 424       default:
 425         return 0;
 426     }
 427
 428     if((c || (c = client_getbytitlebar(titlebar))))
 429         client_need_arrange(c);
 430
 431     return 0;
 432 }
 433
 434 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80