openbox/mouse.c

   1 #include "openbox.h"
   2 #include "config.h"
   3 #include "action.h"
   4 #include "event.h"
   5 #include "client.h"
   6 #include "prop.h"
   7 #include "grab.h"
   8 #include "frame.h"
   9 #include "translate.h"
  10 #include "mouse.h"
  11 #include "keyboard.h"
  12 #include <glib.h>
  13
  14 typedef struct {
  15     guint state;
  16     guint button;
  17     GSList *actions[OB_MOUSE_NUM_ACTIONS]; /* lists of Action pointers */
  18 } ObMouseBinding;
  19
  20 /* Array of GSList*s of PointerBinding*s. */
  21 static GSList *bound_contexts[OB_FRAME_NUM_CONTEXTS];
  22
  23 void mouse_grab_for_client(ObClient *client, gboolean grab)
  24 {
  25     int i;
  26     GSList *it;
  27
  28     for (i = 0; i < OB_FRAME_NUM_CONTEXTS; ++i)
  29         for (it = bound_contexts[i]; it != NULL; it = it->next) {
  30             /* grab/ungrab the button */
  31             ObMouseBinding *b = it->data;
  32             Window win;
  33             int mode;
  34             unsigned int mask;
  35
  36             if (i == OB_FRAME_CONTEXT_FRAME) {
  37                 win = client->frame->window;
  38                 mode = GrabModeAsync;
  39                 mask = ButtonPressMask | ButtonMotionMask | ButtonReleaseMask;
  40             } else if (i == OB_FRAME_CONTEXT_CLIENT) {
  41                 win = client->frame->plate;
  42                 mode = GrabModeSync; /* this is handled in event */
  43                 mask = ButtonPressMask; /* can't catch more than this with Sync
  44                                            mode the release event is
  45                                            manufactured in event() */
  46             } else continue;
  47
  48             if (grab)
  49                 grab_button_full(b->button, b->state, win, mask, mode, None);
  50             else
  51                 ungrab_button(b->button, b->state, win);
  52         }
  53 }
  54
  55 static void grab_all_clients(gboolean grab)
  56 {
  57     GList *it;
  58
  59     for (it = client_list; it != NULL; it = it->next)
  60         mouse_grab_for_client(it->data, grab);
  61 }
  62
  63 static void clearall()
  64 {
  65     int i;
  66     GSList *it;
  67
  68     for(i = 0; i < OB_FRAME_NUM_CONTEXTS; ++i) {
  69         for (it = bound_contexts[i]; it != NULL; it = it->next) {
  70             int j;
  71
  72             ObMouseBinding *b = it->data;
  73             for (j = 0; j < OB_MOUSE_NUM_ACTIONS; ++j) {
  74                 GSList *it;
  75                 for (it = b->actions[j]; it; it = it->next) {
  76                     action_free(it->data);
  77                 }
  78                 g_slist_free(b->actions[j]);
  79             }
  80             g_free(b);
  81         }
  82         g_slist_free(bound_contexts[i]);
  83     }
  84 }
  85
  86 static gboolean fire_button(ObMouseAction a, ObFrameContext context,
  87                             ObClient *c, guint state,
  88                             guint button, int x, int y)
  89 {
  90     GSList *it;
  91     ObMouseBinding *b;
  92
  93     for (it = bound_contexts[context]; it != NULL; it = it->next) {
  94         b = it->data;
  95         if (b->state == state && b->button == button)
  96             break;
  97     }
  98     /* if not bound, then nothing to do! */
  99     if (it == NULL) return FALSE;
 100
 101     for (it = b->actions[a]; it; it = it->next) {
 102         ObAction *act = it->data;
 103         if (act->func != NULL) {
 104             act->data.any.c = c;
 105
 106             g_assert(act->func != action_moveresize);
 107
 108             if (act->func == action_showmenu) {
 109                 act->data.showmenu.x = x;
 110                 act->data.showmenu.y = y;
 111             }
 112
 113             if (act->func == action_desktop_dir)
 114             {
 115                 act->data.desktopdir.final = FALSE;
 116                 act->data.desktopdir.cancel = FALSE;
 117             }
 118             if (act->func == action_send_to_desktop_dir)
 119             {
 120                 act->data.sendtodir.final = FALSE;
 121                 act->data.sendtodir.cancel = FALSE;
 122             }
 123
 124             if (config_desktop_popup &&
 125                 (act->func == action_desktop_dir ||
 126                  act->func == action_send_to_desktop_dir))
 127             {
 128                 keyboard_interactive_grab(state, c, context, act);
 129             }
 130
 131             act->func(&act->data);
 132         }
 133     }
 134     return TRUE;
 135 }
 136
 137 static gboolean fire_motion(ObMouseAction a, ObFrameContext context,
 138                             ObClient *c, guint state, guint button,
 139                             int x_root, int y_root, guint32 corner)
 140 {
 141     GSList *it;
 142     ObMouseBinding *b;
 143
 144     for (it = bound_contexts[context]; it != NULL; it = it->next) {
 145         b = it->data;
 146         if (b->state == state && b->button == button)
 147                 break;
 148     }
 149     /* if not bound, then nothing to do! */
 150     if (it == NULL) return FALSE;
 151
 152     for (it = b->actions[a]; it; it = it->next) {
 153         ObAction *act = it->data;
 154         if (act->func != NULL) {
 155             act->data.any.c = c;
 156
 157             if (act->func == action_moveresize) {
 158                 act->data.moveresize.x = x_root;
 159                 act->data.moveresize.y = y_root;
 160                 act->data.moveresize.button = button;
 161                 if (!(act->data.moveresize.corner ==
 162                       prop_atoms.net_wm_moveresize_move ||
 163                       act->data.moveresize.corner ==
 164                       prop_atoms.net_wm_moveresize_move_keyboard ||
 165                       act->data.moveresize.corner ==
 166                       prop_atoms.net_wm_moveresize_size_keyboard))
 167                     act->data.moveresize.corner = corner;
 168             } else
 169                 g_assert_not_reached();
 170
 171             act->func(&act->data);
 172         }
 173     }
 174     return TRUE;
 175 }
 176
 177 static guint32 pick_corner(int x, int y, int cx, int cy, int cw, int ch)
 178 {
 179     if (x - cx < cw / 2) {
 180         if (y - cy < ch / 2)
 181             return prop_atoms.net_wm_moveresize_size_topleft;
 182         else
 183             return prop_atoms.net_wm_moveresize_size_bottomleft;
 184     } else {
 185         if (y - cy < ch / 2)
 186             return prop_atoms.net_wm_moveresize_size_topright;
 187         else
 188             return prop_atoms.net_wm_moveresize_size_bottomright;
 189     }
 190 }
 191
 192 void mouse_event(ObClient *client, ObFrameContext context, XEvent *e)
 193 {
 194     static Time ltime;
 195     static guint button = 0, state = 0, lbutton = 0;
 196
 197     static Window lwindow = None;
 198     static int px, py;
 199     gboolean click = FALSE;
 200     gboolean dclick = FALSE;
 201
 202     switch (e->type) {
 203     case ButtonPress:
 204         px = e->xbutton.x_root;
 205         py = e->xbutton.y_root;
 206         button = e->xbutton.button;
 207         state = e->xbutton.state;
 208
 209         fire_button(OB_MOUSE_ACTION_PRESS, context,
 210                     client, e->xbutton.state,
 211                     e->xbutton.button,
 212                     e->xbutton.x_root, e->xbutton.y_root);
 213
 214         if (context == OB_FRAME_CONTEXT_CLIENT) {
 215             /* Replay the event, so it goes to the client*/
 216             XAllowEvents(ob_display, ReplayPointer, event_lasttime);
 217             /* Fall through to the release case! */
 218         } else
 219             break;
 220
 221     case ButtonRelease:
 222         if (e->xbutton.button == button) {
 223             /* clicks are only valid if its released over the window */
 224             int junk1, junk2;
 225             Window wjunk;
 226             guint ujunk, b, w, h;
 227             XGetGeometry(ob_display, e->xbutton.window,
 228                          &wjunk, &junk1, &junk2, &w, &h, &b, &ujunk);
 229             if (e->xbutton.x >= (signed)-b &&
 230                 e->xbutton.y >= (signed)-b &&
 231                 e->xbutton.x < (signed)(w+b) &&
 232                 e->xbutton.y < (signed)(h+b)) {
 233                 click = TRUE;
 234                 /* double clicks happen if there were 2 in a row! */
 235                 if (lbutton == button &&
 236                     lwindow == e->xbutton.window &&
 237                     e->xbutton.time - config_mouse_dclicktime <=
 238                     ltime) {
 239                     dclick = TRUE;
 240                     lbutton = 0;
 241                 } else {
 242                     lbutton = button;
 243                     lwindow = e->xbutton.window;
 244                 }
 245             } else {
 246                 lbutton = 0;
 247                 lwindow = None;
 248             }
 249
 250             button = 0;
 251             state = 0;
 252             ltime = e->xbutton.time;
 253         }
 254         fire_button(OB_MOUSE_ACTION_RELEASE, context,
 255                     client, e->xbutton.state,
 256                     e->xbutton.button,
 257                     e->xbutton.x_root, e->xbutton.y_root);
 258         if (click)
 259             fire_button(OB_MOUSE_ACTION_CLICK, context,
 260                         client, e->xbutton.state,
 261                         e->xbutton.button,
 262                         e->xbutton.x_root,
 263                         e->xbutton.y_root);
 264         if (dclick)
 265             fire_button(OB_MOUSE_ACTION_DOUBLE_CLICK, context,
 266                         client, e->xbutton.state,
 267                         e->xbutton.button,
 268                         e->xbutton.x_root,
 269                         e->xbutton.y_root);
 270         break;
 271
 272     case MotionNotify:
 273         if (button) {
 274             if (ABS(e->xmotion.x_root - px) >=
 275                 config_mouse_threshold ||
 276                 ABS(e->xmotion.y_root - py) >=
 277                 config_mouse_threshold) {
 278                 guint32 corner;
 279
 280                 /* You can't drag on buttons */
 281                 if (context == OB_FRAME_CONTEXT_MAXIMIZE ||
 282                     context == OB_FRAME_CONTEXT_ALLDESKTOPS ||
 283                     context == OB_FRAME_CONTEXT_SHADE ||
 284                     context == OB_FRAME_CONTEXT_ICONIFY ||
 285                     context == OB_FRAME_CONTEXT_ICON ||
 286                     context == OB_FRAME_CONTEXT_CLOSE)
 287                     break;
 288
 289                 if (!client)
 290                     corner = prop_atoms.net_wm_moveresize_size_bottomright;
 291                 else
 292                     corner =
 293                         pick_corner(e->xmotion.x_root,
 294                                     e->xmotion.y_root,
 295                                     client->frame->area.x,
 296                                     client->frame->area.y,
 297                                     /* use the client size because the frame
 298                                        can be differently sized (shaded
 299                                        windows) and we want this based on the
 300                                        clients size */
 301                                     client->area.width +
 302                                     client->frame->size.left +
 303                                     client->frame->size.right,
 304                                     client->area.height +
 305                                     client->frame->size.top +
 306                                     client->frame->size.bottom);
 307                 fire_motion(OB_MOUSE_ACTION_MOTION, context,
 308                             client, state, button, px, py, corner);
 309                 button = 0;
 310                 state = 0;
 311             }
 312         }
 313         break;
 314
 315     default:
 316         g_assert_not_reached();
 317     }
 318 }
 319
 320 gboolean mouse_bind(char *buttonstr, char *contextstr, ObMouseAction mact,
 321                     ObAction *action)
 322 {
 323     guint state, button;
 324     ObFrameContext context;
 325     ObMouseBinding *b;
 326     GSList *it;
 327
 328     if (!translate_button(buttonstr, &state, &button)) {
 329         g_warning("invalid button '%s'", buttonstr);
 330         return FALSE;
 331     }
 332
 333     contextstr = g_ascii_strdown(contextstr, -1);
 334     context = frame_context_from_string(contextstr);
 335     if (!context) {
 336         g_warning("invalid context '%s'", contextstr);
 337         g_free(contextstr);
 338         return FALSE;
 339     }
 340     g_free(contextstr);
 341
 342     for (it = bound_contexts[context]; it != NULL; it = it->next){
 343         b = it->data;
 344         if (b->state == state && b->button == button) {
 345             b->actions[mact] = g_slist_append(b->actions[mact], action);
 346             return TRUE;
 347         }
 348     }
 349
 350     grab_all_clients(FALSE);
 351
 352     /* add the binding */
 353     b = g_new0(ObMouseBinding, 1);
 354     b->state = state;
 355     b->button = button;
 356     b->actions[mact] = g_slist_append(NULL, action);
 357     bound_contexts[context] = g_slist_append(bound_contexts[context], b);
 358
 359     grab_all_clients(TRUE);
 360
 361     return TRUE;
 362 }
 363
 364 void mouse_startup()
 365 {
 366 }
 367
 368 void mouse_shutdown()
 369 {
 370     grab_all_clients(FALSE);
 371     clearall();
 372 }