ioncore/eventh.c

   1 /*
   2  * ion/ioncore/eventh.c
   3  *
   4  * Copyright (c) Tuomo Valkonen 1999-2007.
   5  *
   6  * Ion is free software; you can redistribute it and/or modify it under
   7  * the terms of the GNU Lesser General Public License as published by
   8  * the Free Software Foundation; either version 2.1 of the License, or
   9  * (at your option) any later version.
  10  */
  11
  12 #include <stdlib.h>
  13 #include <unistd.h>
  14 #include <sys/time.h>
  15
  16 #include <libtu/objp.h>
  17 #include "common.h"
  18 #include "global.h"
  19 #include "rootwin.h"
  20 #include "property.h"
  21 #include "pointer.h"
  22 #include "key.h"
  23 #include "focus.h"
  24 #include "selection.h"
  25 #include "event.h"
  26 #include "eventh.h"
  27 #include "clientwin.h"
  28 #include "colormap.h"
  29 #include "grab.h"
  30 #include "bindmaps.h"
  31 #include "activity.h"
  32 #include "netwm.h"
  33 #include "xwindow.h"
  34
  35
  36 /*{{{ ioncore_handle_event */
  37
  38
  39 #define CASE_EVENT(EV) case EV:  /*\
  40     fprintf(stderr, "[%#lx] %s\n", ev->xany.window, #EV);*/
  41
  42
  43 bool ioncore_handle_event(XEvent *ev)
  44 {
  45
  46     switch(ev->type){
  47     CASE_EVENT(MapRequest)
  48         ioncore_handle_map_request(&(ev->xmaprequest));
  49         break;
  50     CASE_EVENT(ConfigureRequest)
  51         ioncore_handle_configure_request(&(ev->xconfigurerequest));
  52         break;
  53     CASE_EVENT(UnmapNotify)
  54         ioncore_handle_unmap_notify(&(ev->xunmap));
  55         break;
  56     CASE_EVENT(DestroyNotify)
  57         ioncore_handle_destroy_notify(&(ev->xdestroywindow));
  58         break;
  59     CASE_EVENT(ClientMessage)
  60         ioncore_handle_client_message(&(ev->xclient));
  61         break;
  62     CASE_EVENT(PropertyNotify)
  63         ioncore_handle_property(&(ev->xproperty));
  64         break;
  65     CASE_EVENT(FocusIn)
  66         ioncore_handle_focus_in(&(ev->xfocus), FALSE);
  67         break;
  68     CASE_EVENT(FocusOut)
  69         ioncore_handle_focus_out(&(ev->xfocus));
  70         break;
  71     CASE_EVENT(EnterNotify)
  72         ioncore_handle_enter_window(ev);
  73         break;
  74     CASE_EVENT(Expose)
  75         ioncore_handle_expose(&(ev->xexpose));
  76         break;
  77     CASE_EVENT(KeyPress)
  78         ioncore_handle_keyboard(ev);
  79         break;
  80     CASE_EVENT(KeyRelease)
  81         ioncore_handle_keyboard(ev);
  82         break;
  83     CASE_EVENT(ButtonPress)
  84         ioncore_handle_buttonpress(ev);
  85         break;
  86     CASE_EVENT(ColormapNotify)
  87         ioncore_handle_colormap_notify(&(ev->xcolormap));
  88         break;
  89     CASE_EVENT(MappingNotify)
  90         ioncore_handle_mapping_notify(ev);
  91         break;
  92     CASE_EVENT(SelectionClear)
  93         ioncore_clear_selection();
  94         break;
  95     CASE_EVENT(SelectionNotify)
  96         ioncore_handle_selection(&(ev->xselection));
  97         break;
  98     CASE_EVENT(SelectionRequest)
  99         ioncore_handle_selection_request(&(ev->xselectionrequest));
 100         break;
 101     }
 102
 103     return TRUE;
 104 }
 105
 106
 107 /*}}}*/
 108
 109
 110 /*{{{ Map, unmap, destroy */
 111
 112
 113 void ioncore_handle_map_request(const XMapRequestEvent *ev)
 114 {
 115     WRegion *reg;
 116
 117     reg=XWINDOW_REGION_OF(ev->window);
 118
 119     if(reg!=NULL)
 120         return;
 121
 122     ioncore_manage_clientwin(ev->window, TRUE);
 123 }
 124
 125
 126 void ioncore_handle_unmap_notify(const XUnmapEvent *ev)
 127 {
 128     WClientWin *cwin;
 129
 130     /* We are not interested in SubstructureNotify -unmaps. */
 131     if(ev->event!=ev->window && ev->send_event!=True)
 132         return;
 133
 134     cwin=XWINDOW_REGION_OF_T(ev->window, WClientWin);
 135
 136     if(cwin!=NULL)
 137         clientwin_unmapped(cwin);
 138 }
 139
 140
 141 void ioncore_handle_destroy_notify(const XDestroyWindowEvent *ev)
 142 {
 143     WClientWin *cwin;
 144
 145     cwin=XWINDOW_REGION_OF_T(ev->window, WClientWin);
 146
 147     if(cwin!=NULL)
 148         clientwin_destroyed(cwin);
 149 }
 150
 151
 152 /*}}}*/
 153
 154
 155 /*{{{ Client configure/property/message */
 156
 157
 158 void ioncore_handle_configure_request(XConfigureRequestEvent *ev)
 159 {
 160     WClientWin *cwin;
 161     XWindowChanges wc;
 162
 163     cwin=XWINDOW_REGION_OF_T(ev->window, WClientWin);
 164
 165     if(cwin==NULL){
 166         wc.border_width=ev->border_width;
 167         wc.sibling=ev->above;
 168         wc.stack_mode=ev->detail;
 169         wc.x=ev->x;
 170         wc.y=ev->y;
 171         wc.width=ev->width;
 172         wc.height=ev->height;
 173         XConfigureWindow(ioncore_g.dpy, ev->window, ev->value_mask, &wc);
 174         return;
 175     }
 176
 177     clientwin_handle_configure_request(cwin, ev);
 178 }
 179
 180
 181 void ioncore_handle_client_message(const XClientMessageEvent *ev)
 182 {
 183     netwm_handle_client_message(ev);
 184
 185 #if 0
 186     WClientWin *cwin;
 187
 188     if(ev->message_type!=ioncore_g.atom_wm_change_state)
 189         return;
 190
 191     cwin=XWINDOW_REGION_OF_T(ev->window, WClientWin);
 192
 193     if(cwin==NULL)
 194         return;
 195
 196     if(ev->format==32 && ev->data.l[0]==IconicState){
 197         if(cwin->state==NormalState)
 198             iconify_clientwin(cwin);
 199     }
 200 #endif
 201 }
 202
 203
 204 static bool pchg_mrsh_extl(ExtlFn fn, void **p)
 205 {
 206     extl_call(fn, "oi", NULL, p[0], ((XPropertyEvent*)p[1])->atom);
 207     return TRUE;
 208 }
 209
 210 static bool pchg_mrsh(void (*fn)(void *p1, void *p2), void **p)
 211 {
 212     fn(p[0], p[1]);
 213     return TRUE;
 214 }
 215
 216
 217 void ioncore_handle_property(const XPropertyEvent *ev)
 218 {
 219     WClientWin *cwin;
 220
 221     cwin=XWINDOW_REGION_OF_T(ev->window, WClientWin);
 222
 223     if(cwin==NULL)
 224         return;
 225
 226     if(ev->atom==XA_WM_HINTS){
 227         XWMHints *hints;
 228         hints=XGetWMHints(ioncore_g.dpy, ev->window);
 229         /* region_notify/clear_activity take care of checking current state */
 230         if(hints!=NULL){
 231             if(hints->flags&XUrgencyHint){
 232                 if(!region_skip_focus((WRegion*)cwin))
 233                     region_set_activity((WRegion*)cwin, SETPARAM_SET);
 234             }else{
 235                 region_set_activity((WRegion*)cwin, SETPARAM_UNSET);
 236             }
 237         }
 238         XFree(hints);
 239     }else if(ev->atom==XA_WM_NORMAL_HINTS){
 240         clientwin_get_size_hints(cwin);
 241     }else if(ev->atom==XA_WM_NAME){
 242         if(!(cwin->flags&CLIENTWIN_USE_NET_WM_NAME))
 243             clientwin_get_set_name(cwin);
 244     }else if(ev->atom==XA_WM_TRANSIENT_FOR){
 245         clientwin_tfor_changed(cwin);
 246     }else if(ev->atom==ioncore_g.atom_wm_protocols){
 247         clientwin_get_protocols(cwin);
 248     }else{
 249         netwm_handle_property(cwin, ev);
 250     }
 251
 252     /* Call property hook */
 253     {
 254         void *p[2];
 255         p[0]=(void*)cwin;
 256         p[1]=(void*)ev;
 257         hook_call(clientwin_property_change_hook, p,
 258                   (WHookMarshall*)pchg_mrsh,
 259                   (WHookMarshallExtl*)pchg_mrsh_extl);
 260     }
 261 }
 262
 263
 264 /*}}}*/
 265
 266
 267 /*{{{ Misc. notifies */
 268
 269
 270 void ioncore_handle_mapping_notify(XEvent *ev)
 271 {
 272     do{
 273         XRefreshKeyboardMapping(&(ev->xmapping));
 274     }while(XCheckTypedEvent(ioncore_g.dpy, MappingNotify, ev));
 275
 276     ioncore_refresh_bindmaps();
 277 }
 278
 279
 280 /*}}}*/
 281
 282
 283 /*{{{ Expose */
 284
 285
 286 void ioncore_handle_expose(const XExposeEvent *ev)
 287 {
 288     WWindow *wwin;
 289     WRootWin *rootwin;
 290     XEvent tmp;
 291
 292     while(XCheckWindowEvent(ioncore_g.dpy, ev->window, ExposureMask, &tmp))
 293         /* nothing */;
 294
 295     wwin=XWINDOW_REGION_OF_T(ev->window, WWindow);
 296
 297     if(wwin!=NULL)
 298         window_draw(wwin, FALSE);
 299 }
 300
 301
 302 /*}}}*/
 303
 304
 305 /*{{{ Enter window, focus */
 306
 307
 308 static void do_handle_enter_window(XEvent *ev)
 309 {
 310     XEnterWindowEvent *eev=&(ev->xcrossing);
 311     WRegion *reg=NULL;
 312
 313     if(ioncore_g.input_mode!=IONCORE_INPUTMODE_NORMAL)
 314         return;
 315
 316     reg=XWINDOW_REGION_OF_T(eev->window, WRegion);
 317
 318     if(reg==NULL)
 319         return;
 320
 321     if(REGION_IS_ACTIVE(reg))
 322         return;
 323
 324     if(region_skip_focus(reg))
 325         return;
 326
 327     /* If a child of 'reg' is to be focused, do not process this
 328      * event. (ioncore_g.focus_next should only be set here by
 329      * another call to use from ioncore_handle_enter_window below.)
 330      */
 331     if(ioncore_g.focus_next!=NULL){
 332         WRegion *r2=ioncore_g.focus_next;
 333         while(r2!=NULL){
 334             if(r2==reg)
 335                 return;
 336             r2=REGION_PARENT_REG(r2);
 337         }
 338     }
 339
 340     region_goto_flags(reg, (REGION_GOTO_FOCUS|
 341                             REGION_GOTO_NOWARP|
 342                             REGION_GOTO_ENTERWINDOW));
 343 }
 344
 345
 346 void ioncore_handle_enter_window(XEvent *ev)
 347 {
 348     do{
 349         /* *sigh*, it doesn't seem reasonably simply possible to
 350          * process events in-order.
 351          */
 352         do_handle_enter_window(ev);
 353     }while(XCheckMaskEvent(ioncore_g.dpy, EnterWindowMask, ev));
 354 }
 355
 356
 357 static bool pointer_in_root(Window root1)
 358 {
 359     Window root2=None, win;
 360     int x, y, wx, wy;
 361     uint mask;
 362
 363     XQueryPointer(ioncore_g.dpy, root1, &root2, &win,
 364                   &x, &y, &wx, &wy, &mask);
 365
 366     return (root1==root2);
 367 }
 368
 369
 370
 371 void ioncore_handle_focus_in(const XFocusChangeEvent *ev, bool skip)
 372 {
 373     WRegion *reg;
 374     WWindow *wwin;
 375
 376     reg=XWINDOW_REGION_OF_T(ev->window, WRegion);
 377
 378     if(reg==NULL)
 379         return;
 380
 381     D(fprintf(stderr, "FI: %s %p %d %d\n", OBJ_TYPESTR(reg), reg, ev->mode, ev->detail);)
 382
 383     if(ev->mode==NotifyGrab)
 384         return;
 385
 386     if(ev->detail==NotifyPointer)
 387         return;
 388
 389     if(ev->window==region_root_of(reg)){ /* OBJ_IS(reg, WRootWin) */
 390         D(fprintf(stderr, "scr-in %d %d %d\n", ROOTWIN_OF(reg)->xscr,
 391                   ev->mode, ev->detail));
 392         if((ev->detail==NotifyPointerRoot || ev->detail==NotifyDetailNone) &&
 393            pointer_in_root(ev->window) && ioncore_g.focus_next==NULL){
 394             /* Restore focus */
 395             if(!skip)
 396                 region_set_focus(reg);
 397             return;
 398         }
 399     }
 400
 401     /* Input contexts */
 402     if(OBJ_IS(reg, WWindow)){
 403         wwin=(WWindow*)reg;
 404         if(wwin->xic!=NULL)
 405             XSetICFocus(wwin->xic);
 406     }
 407
 408     if(ev->detail!=NotifyInferior)
 409         netwm_set_active(reg);
 410
 411     region_got_focus(reg);
 412 }
 413
 414
 415 void ioncore_handle_focus_out(const XFocusChangeEvent *ev)
 416 {
 417     WRegion *reg;
 418     WWindow *wwin;
 419
 420     reg=XWINDOW_REGION_OF_T(ev->window, WRegion);
 421
 422     if(reg==NULL)
 423         return;
 424
 425     D(fprintf(stderr, "FO: %s %p %d %d\n", OBJ_TYPESTR(reg), reg, ev->mode, ev->detail);)
 426
 427     if(ev->mode==NotifyGrab)
 428         return;
 429
 430     if(ev->detail==NotifyPointer)
 431         return;
 432
 433     D(if(OBJ_IS(reg, WRootWin))
 434       fprintf(stderr, "scr-out %d %d %d\n", ((WRootWin*)reg)->xscr, ev->mode, ev->detail));
 435
 436     if(OBJ_IS(reg, WWindow)){
 437         wwin=(WWindow*)reg;
 438         if(wwin->xic!=NULL)
 439             XUnsetICFocus(wwin->xic);
 440     }
 441
 442     if(ev->detail!=NotifyInferior)
 443         region_lost_focus(reg);
 444     else
 445         region_got_focus(reg);
 446 }
 447
 448
 449 /*}}}*/
 450
 451
 452 /*{{{ Pointer, keyboard */
 453
 454
 455 void ioncore_handle_buttonpress(XEvent *ev)
 456 {
 457     XEvent tmp;
 458     Window win_pressed;
 459     bool finished=FALSE;
 460
 461     if(ioncore_grab_held())
 462         return;
 463
 464     win_pressed=ev->xbutton.window;
 465
 466     if(!ioncore_do_handle_buttonpress(&(ev->xbutton)))
 467         return;
 468
 469     while(!finished && ioncore_grab_held()){
 470         XFlush(ioncore_g.dpy);
 471         ioncore_get_event(ev, IONCORE_EVENTMASK_PTRLOOP);
 472
 473         if(ev->type==MotionNotify){
 474             /* Handle sequences of MotionNotify (possibly followed by button
 475              * release) as one.
 476              */
 477             if(XPeekEvent(ioncore_g.dpy, &tmp)){
 478                 if(tmp.type==MotionNotify || tmp.type==ButtonRelease)
 479                     XNextEvent(ioncore_g.dpy, ev);
 480             }
 481         }
 482
 483         switch(ev->type){
 484         CASE_EVENT(ButtonRelease)
 485             if(ioncore_do_handle_buttonrelease(&ev->xbutton))
 486                 finished=TRUE;
 487             break;
 488         CASE_EVENT(MotionNotify)
 489             ioncore_do_handle_motionnotify(&ev->xmotion);
 490             break;
 491         CASE_EVENT(Expose)
 492             ioncore_handle_expose(&(ev->xexpose));
 493             break;
 494         CASE_EVENT(KeyPress)
 495         CASE_EVENT(KeyRelease)
 496             ioncore_handle_grabs(ev);
 497             break;
 498         CASE_EVENT(FocusIn)
 499             ioncore_handle_focus_in(&(ev->xfocus), FALSE);
 500             break;
 501         CASE_EVENT(FocusOut)
 502             ioncore_handle_focus_out(&(ev->xfocus));
 503             break;
 504         }
 505     }
 506 }
 507
 508
 509 void ioncore_handle_keyboard(XEvent *ev)
 510 {
 511     if(ioncore_handle_grabs(ev))
 512         return;
 513
 514     if(ev->type==KeyPress)
 515         ioncore_do_handle_keypress(&(ev->xkey));
 516 }
 517
 518
 519 /*}}}*/
 520
 521