ioncore/screen.c

   1 /*
   2  * ion/ioncore/screen.c
   3  *
   4  * Copyright (c) Tuomo Valkonen 1999-2009.
   5  *
   6  * See the included file LICENSE for details.
   7  */
   8
   9 #include <string.h>
  10
  11 #include <libtu/objp.h>
  12 #include <libtu/minmax.h>
  13
  14 #include "common.h"
  15 #include "global.h"
  16 #include "screen.h"
  17 #include "region.h"
  18 #include "attach.h"
  19 #include "manage.h"
  20 #include "focus.h"
  21 #include "property.h"
  22 #include "names.h"
  23 #include "reginfo.h"
  24 #include "saveload.h"
  25 #include "resize.h"
  26 #include "event.h"
  27 #include "bindmaps.h"
  28 #include "regbind.h"
  29 #include "frame-pointer.h"
  30 #include "rectangle.h"
  31 #include "extlconv.h"
  32 #include "llist.h"
  33 #include "group-ws.h"
  34 #include "mplex.h"
  35 #include "conf.h"
  36 #include "activity.h"
  37 #include "screen-notify.h"
  38
  39
  40 WHook *screen_managed_changed_hook=NULL;
  41
  42
  43 /*{{{ Init/deinit */
  44
  45
  46 bool screen_init(WScreen *scr, WRootWin *parent, const WFitParams *fp, int id)
  47 {
  48     Window win;
  49     XSetWindowAttributes attr;
  50     ulong attrflags=0;
  51
  52     scr->id=id;
  53     scr->atom_workspace=None;
  54     scr->managed_off.x=0;
  55     scr->managed_off.y=0;
  56     scr->managed_off.w=0;
  57     scr->managed_off.h=0;
  58     scr->next_scr=NULL;
  59     scr->prev_scr=NULL;
  60
  61     watch_init(&(scr->notifywin_watch));
  62     watch_init(&(scr->infowin_watch));
  63
  64     attr.background_pixmap=ParentRelative;
  65     attrflags=CWBackPixmap;
  66
  67     win=XCreateWindow(ioncore_g.dpy, WROOTWIN_ROOT(parent),
  68         fp->g.x, fp->g.y, fp->g.w, fp->g.h, 0,
  69         DefaultDepth(ioncore_g.dpy, parent->xscr),
  70         InputOutput,
  71         DefaultVisual(ioncore_g.dpy, parent->xscr),
  72         attrflags, &attr);
  73     if(win==None)
  74         return FALSE;
  75
  76     if(!mplex_do_init((WMPlex*)scr, (WWindow*)parent, fp, win, "WScreen")){
  77         XDestroyWindow(ioncore_g.dpy, win);
  78         return FALSE;
  79     }
  80
  81     /*scr->mplex.win.region.rootwin=rootwin;
  82     region_set_parent((WRegion*)scr, (WRegion*)rootwin);*/
  83     scr->mplex.flags|=MPLEX_ADD_TO_END;
  84     scr->mplex.win.region.flags|=REGION_BINDINGS_ARE_GRABBED;
  85
  86     scr->mplex.win.region.flags|=REGION_MAPPED;
  87     window_select_input((WWindow*)scr, IONCORE_EVENTMASK_SCREEN);
  88
  89     if(id==0){
  90         scr->atom_workspace=XInternAtom(ioncore_g.dpy,
  91                                         "_ION_WORKSPACE", False);
  92     }else if(id>=0){
  93         char *str;
  94         libtu_asprintf(&str, "_ION_WORKSPACE%d", id);
  95         if(str!=NULL){
  96             scr->atom_workspace=XInternAtom(ioncore_g.dpy, str, False);
  97             free(str);
  98         }
  99     }
 100
 101     /* Add all the needed bindings here; mplex does nothing so that
 102      * frames don't have to remove extra bindings.
 103      */
 104     region_add_bindmap((WRegion*)scr, ioncore_screen_bindmap);
 105     region_add_bindmap((WRegion*)scr, ioncore_mplex_bindmap);
 106     region_add_bindmap((WRegion*)scr, ioncore_mplex_toplevel_bindmap);
 107
 108     LINK_ITEM(ioncore_g.screens, scr, next_scr, prev_scr);
 109
 110     return TRUE;
 111 }
 112
 113
 114 WScreen *create_screen(WRootWin *parent, const WFitParams *fp, int id)
 115 {
 116     CREATEOBJ_IMPL(WScreen, screen, (p, parent, fp, id));
 117 }
 118
 119
 120 void screen_deinit(WScreen *scr)
 121 {
 122     UNLINK_ITEM(ioncore_g.screens, scr, next_scr, prev_scr);
 123
 124     mplex_deinit((WMPlex*)scr);
 125 }
 126
 127
 128 /*}}}*/
 129
 130
 131 /*{{{ Attach/detach */
 132
 133
 134 void screen_managed_geom(WScreen *scr, WRectangle *geom)
 135 {
 136     geom->x=scr->managed_off.x;
 137     geom->y=scr->managed_off.y;
 138     geom->w=REGION_GEOM(scr).w+scr->managed_off.w;
 139     geom->h=REGION_GEOM(scr).h+scr->managed_off.h;
 140     geom->w=maxof(geom->w, 0);
 141     geom->h=maxof(geom->h, 0);
 142 }
 143
 144
 145 static bool screen_handle_drop(WScreen *scr, int x, int y, WRegion *dropped)
 146 {
 147     WRegion *curr=mplex_mx_current(&(scr->mplex));
 148
 149     /* This code should handle dropping tabs on floating workspaces. */
 150     if(curr && HAS_DYN(curr, region_handle_drop)){
 151         int rx, ry;
 152         region_rootpos(curr, &rx, &ry);
 153         if(rectangle_contains(&REGION_GEOM(curr), x-rx, y-ry)){
 154             if(region_handle_drop(curr, x, y, dropped))
 155                 return TRUE;
 156         }
 157     }
 158
 159     /* Do not attach to ourselves unlike generic WMPlex. */
 160     return FALSE;
 161 }
 162
 163
 164 /*}}}*/
 165
 166
 167 /*{{{ Region dynfun implementations */
 168
 169
 170 static void screen_managed_changed(WScreen *scr, int mode, bool sw,
 171                                    WRegion *reg_)
 172 {
 173     if(ioncore_g.opmode==IONCORE_OPMODE_DEINIT)
 174         return;
 175
 176     if(sw && scr->atom_workspace!=None){
 177         WRegion *reg=mplex_mx_current(&(scr->mplex));
 178         const char *n=NULL;
 179
 180         if(reg!=NULL)
 181             n=region_displayname(reg);
 182
 183         xwindow_set_string_property(region_root_of((WRegion*)scr),
 184                                     scr->atom_workspace,
 185                                     n==NULL ? "" : n);
 186     }
 187
 188     if(region_is_activity_r((WRegion*)scr))
 189         screen_update_notifywin(scr);
 190
 191     screen_update_infowin(scr);
 192
 193     mplex_call_changed_hook((WMPlex*)scr,
 194                             screen_managed_changed_hook,
 195                             mode, sw, reg_);
 196 }
 197
 198
 199 static void screen_map(WScreen *scr)
 200 {
 201     mplex_map((WMPlex*)scr);
 202 }
 203
 204
 205 static void screen_unmap(WScreen *scr)
 206 {
 207     mplex_unmap((WMPlex*)scr);
 208 }
 209
 210 void screen_inactivated(WScreen *scr)
 211 {
 212     screen_update_infowin(scr);
 213 }
 214
 215
 216 void screen_activated(WScreen *scr)
 217 {
 218     screen_update_infowin(scr);
 219 }
 220
 221
 222 /*}}}*/
 223
 224
 225 /*{{{ Misc. */
 226
 227
 228 /*EXTL_DOC
 229  * Find the screen with numerical id \var{id}.
 230  */
 231 EXTL_SAFE
 232 EXTL_EXPORT
 233 WScreen *ioncore_find_screen_id(int id)
 234 {
 235     WScreen *scr, *maxscr=NULL;
 236
 237     FOR_ALL_SCREENS(scr){
 238         if(id==-1){
 239             if(maxscr==NULL || scr->id>maxscr->id)
 240                 maxscr=scr;
 241         }
 242         if(scr->id==id)
 243             return scr;
 244     }
 245
 246     return maxscr;
 247 }
 248
 249
 250 /*EXTL_DOC
 251  * Switch focus to the screen with id \var{id} and return it.
 252  *
 253  * Note that this function is asynchronous; the screen will not
 254  * actually have received the focus when this function returns.
 255  */
 256 EXTL_EXPORT
 257 WScreen *ioncore_goto_nth_screen(int id)
 258 {
 259     WScreen *scr=ioncore_find_screen_id(id);
 260     if(scr!=NULL){
 261         if(!region_goto((WRegion*)scr))
 262             return NULL;
 263     }
 264     return scr;
 265 }
 266
 267
 268 static WScreen *current_screen()
 269 {
 270     if(ioncore_g.focus_current==NULL)
 271         return ioncore_g.screens;
 272     else
 273         return region_screen_of(ioncore_g.focus_current);
 274 }
 275
 276
 277 /*EXTL_DOC
 278  * Switch focus to the next screen and return it.
 279  *
 280  * Note that this function is asynchronous; the screen will not
 281  * actually have received the focus when this function returns.
 282  */
 283 EXTL_EXPORT
 284 WScreen *ioncore_goto_next_screen()
 285 {
 286     WScreen *scr=current_screen();
 287
 288     if(scr!=NULL)
 289         scr=scr->next_scr;
 290     if(scr==NULL)
 291         scr=ioncore_g.screens;
 292     if(scr!=NULL){
 293         if(!region_goto((WRegion*)scr))
 294             return NULL;
 295     }
 296     return scr;
 297 }
 298
 299
 300 /*EXTL_DOC
 301  * Switch focus to the previous screen and return it.
 302  *
 303  * Note that this function is asynchronous; the screen will not
 304  * actually have received the focus when this function returns.
 305  */
 306 EXTL_EXPORT
 307 WScreen *ioncore_goto_prev_screen()
 308 {
 309     WScreen *scr=current_screen();
 310
 311     if(scr!=NULL)
 312         scr=scr->prev_scr;
 313     else
 314         scr=ioncore_g.screens;
 315     if(scr!=NULL){
 316         if(!region_goto((WRegion*)scr))
 317             return NULL;
 318     }
 319     return scr;
 320 }
 321
 322
 323 /*EXTL_DOC
 324  * Return the numerical id for screen \var{scr}.
 325  */
 326 EXTL_SAFE
 327 EXTL_EXPORT_MEMBER
 328 int screen_id(WScreen *scr)
 329 {
 330     return scr->id;
 331 }
 332
 333
 334 static WRegion *screen_managed_disposeroot(WScreen *scr, WRegion *reg)
 335 {
 336     bool onmxlist=FALSE, others=FALSE;
 337     WLListNode *lnode;
 338     WLListIterTmp tmp;
 339
 340     if(OBJ_IS(reg, WGroupWS)){
 341         FOR_ALL_NODES_ON_LLIST(lnode, scr->mplex.mx_list, tmp){
 342             if(lnode->st->reg==reg){
 343                 onmxlist=TRUE;
 344             }else if(OBJ_IS(lnode->st->reg, WGroupWS)){
 345                 others=TRUE;
 346                 break;
 347             }
 348         }
 349
 350         if(onmxlist && !others){
 351             warn(TR("Only workspace may not be destroyed/detached."));
 352             return NULL;
 353         }
 354     }
 355
 356     return reg;
 357 }
 358
 359
 360 static bool screen_may_dispose(WScreen *scr)
 361 {
 362     warn(TR("Screens may not be destroyed."));
 363     return FALSE;
 364 }
 365
 366
 367
 368 void screen_set_managed_offset(WScreen *scr, const WRectangle *off)
 369 {
 370     scr->managed_off=*off;
 371     mplex_fit_managed((WMPlex*)scr);
 372 }
 373
 374
 375 /*EXTL_DOC
 376  * Set offset of objects managed by the screen from actual screen geometry.
 377  * The table \var{offset} should contain the entries \code{x}, \code{y},
 378  * \code{w} and \code{h} indicating offsets of that component of screen
 379  * geometry.
 380  */
 381 EXTL_EXPORT_AS(WScreen, set_managed_offset)
 382 bool screen_set_managed_offset_extl(WScreen *scr, ExtlTab offset)
 383 {
 384     WRectangle g;
 385
 386     if(!extl_table_to_rectangle(offset, &g))
 387         goto err;
 388
 389     if(-g.w>=REGION_GEOM(scr).w)
 390         goto err;
 391     if(-g.h>=REGION_GEOM(scr).h)
 392         goto err;
 393
 394     screen_set_managed_offset(scr, &g);
 395
 396     return TRUE;
 397 err:
 398     warn(TR("Invalid offset."));
 399     return FALSE;
 400 }
 401
 402
 403 /*}}}*/
 404
 405
 406 /*{{{ Save/load */
 407
 408
 409 ExtlTab screen_get_configuration(WScreen *scr)
 410 {
 411     return mplex_get_configuration(&scr->mplex);
 412 }
 413
 414
 415 static WRegion *do_create_initial(WWindow *parent, const WFitParams *fp,
 416                                   WRegionLoadCreateFn *fn)
 417 {
 418     return fn(parent, fp, extl_table_none());
 419 }
 420
 421
 422 static bool create_initial_ws(WScreen *scr)
 423 {
 424     WRegion *reg=NULL;
 425     WMPlexAttachParams par=MPLEXATTACHPARAMS_INIT;
 426     ExtlTab lo=ioncore_get_layout("default");
 427
 428     if(lo==extl_table_none()){
 429         reg=mplex_do_attach_new(&scr->mplex, &par,
 430                                 (WRegionCreateFn*)create_groupws, NULL);
 431     }else{
 432         reg=mplex_attach_new_(&scr->mplex, &par, 0, lo);
 433         extl_unref_table(lo);
 434     }
 435
 436     if(reg==NULL){
 437         warn(TR("Unable to create a workspace on screen %d."), scr->id);
 438         return FALSE;
 439     }
 440
 441     return TRUE;
 442 }
 443
 444
 445 bool screen_init_layout(WScreen *scr, ExtlTab tab)
 446 {
 447     char *name;
 448     ExtlTab substab, subtab;
 449     int n, i;
 450
 451     if(tab==extl_table_none())
 452         return create_initial_ws(scr);
 453
 454     mplex_load_contents(&scr->mplex, tab);
 455
 456     return TRUE;
 457 }
 458
 459 /*}}}*/
 460
 461
 462 /*{{{ Dynamic function table and class implementation */
 463
 464
 465 static DynFunTab screen_dynfuntab[]={
 466     {region_map,
 467      screen_map},
 468
 469     {region_unmap,
 470      screen_unmap},
 471
 472     {region_activated,
 473      screen_activated},
 474
 475     {region_inactivated,
 476      screen_inactivated},
 477
 478     {(DynFun*)region_managed_disposeroot,
 479      (DynFun*)screen_managed_disposeroot},
 480
 481     {(DynFun*)region_may_dispose,
 482      (DynFun*)screen_may_dispose},
 483
 484     {mplex_managed_changed,
 485      screen_managed_changed},
 486
 487     {region_managed_notify,
 488      screen_managed_notify},
 489
 490     {mplex_managed_geom,
 491      screen_managed_geom},
 492
 493     {(DynFun*)region_get_configuration,
 494      (DynFun*)screen_get_configuration},
 495
 496     {(DynFun*)region_handle_drop,
 497      (DynFun*)screen_handle_drop},
 498
 499     END_DYNFUNTAB
 500 };
 501
 502
 503 EXTL_EXPORT
 504 IMPLCLASS(WScreen, WMPlex, screen_deinit, screen_dynfuntab);
 505
 506
 507 /*}}}*/