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[NUM_MOUSEACTION]; /* 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 < NUM_MOUSEACTION; ++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 void 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;
 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 ((act->func == action_desktop_dir ||
 125                  act->func == action_send_to_desktop_dir)) {
 126                 keyboard_interactive_grab(state, c, context, act);
 127             }
 128
 129             act->func(&act->data);
 130         }
 131     }
 132 }
 133
 134 static void fire_motion(ObMouseAction a, ObFrameContext context, ObClient *c,
 135                         guint state, guint button, int x_root, int y_root,
 136                         guint32 corner)
 137 {
 138     GSList *it;
 139     ObMouseBinding *b;
 140
 141     for (it = bound_contexts[context]; it != NULL; it = it->next) {
 142         b = it->data;
 143         if (b->state == state && b->button == button)
 144                 break;
 145     }
 146     /* if not bound, then nothing to do! */
 147     if (it == NULL) return;
 148
 149     for (it = b->actions[a]; it; it = it->next) {
 150         ObAction *act = it->data;
 151         if (act->func != NULL) {
 152             act->data.any.c = c;
 153
 154             if (act->func == action_moveresize) {
 155                 act->data.moveresize.x = x_root;
 156                 act->data.moveresize.y = y_root;
 157                 act->data.moveresize.button = button;
 158                 if (!(act->data.moveresize.corner ==
 159                       prop_atoms.net_wm_moveresize_move ||
 160                       act->data.moveresize.corner ==
 161                       prop_atoms.net_wm_moveresize_move_keyboard ||
 162                       act->data.moveresize.corner ==
 163                       prop_atoms.net_wm_moveresize_size_keyboard))
 164                     act->data.moveresize.corner = corner;
 165             } else
 166                 g_assert_not_reached();
 167
 168             act->func(&act->data);
 169         }
 170     }
 171 }
 172
 173 static guint32 pick_corner(int x, int y, int cx, int cy, int cw, int ch)
 174 {
 175     if (x - cx < cw / 2) {
 176         if (y - cy < ch / 2)
 177             return prop_atoms.net_wm_moveresize_size_topleft;
 178         else
 179             return prop_atoms.net_wm_moveresize_size_bottomleft;
 180     } else {
 181         if (y - cy < ch / 2)
 182             return prop_atoms.net_wm_moveresize_size_topright;
 183         else
 184             return prop_atoms.net_wm_moveresize_size_bottomright;
 185     }
 186 }
 187
 188 void mouse_event(ObClient *client, ObFrameContext context, XEvent *e)
 189 {
 190     static Time ltime;
 191     static guint button = 0, state = 0, lbutton = 0;
 192
 193     static Window lwindow = None;
 194     static int px, py;
 195     gboolean click = FALSE;
 196     gboolean dclick = FALSE;
 197
 198     switch (e->type) {
 199     case ButtonPress:
 200         px = e->xbutton.x_root;
 201         py = e->xbutton.y_root;
 202         button = e->xbutton.button;
 203         state = e->xbutton.state;
 204
 205         fire_button(MouseAction_Press, context,
 206                     client, e->xbutton.state,
 207                     e->xbutton.button,
 208                     e->xbutton.x_root, e->xbutton.y_root);
 209
 210         if (context == OB_FRAME_CONTEXT_CLIENT) {
 211             /* Replay the event, so it goes to the client*/
 212             XAllowEvents(ob_display, ReplayPointer, event_lasttime);
 213             /* Fall through to the release case! */
 214         } else
 215             break;
 216
 217     case ButtonRelease:
 218         if (e->xbutton.button == button) {
 219             /* clicks are only valid if its released over the window */
 220             int junk1, junk2;
 221             Window wjunk;
 222             guint ujunk, b, w, h;
 223             XGetGeometry(ob_display, e->xbutton.window,
 224                          &wjunk, &junk1, &junk2, &w, &h, &b, &ujunk);
 225             if (e->xbutton.x >= (signed)-b &&
 226                 e->xbutton.y >= (signed)-b &&
 227                 e->xbutton.x < (signed)(w+b) &&
 228                 e->xbutton.y < (signed)(h+b)) {
 229                 click = TRUE;
 230                 /* double clicks happen if there were 2 in a row! */
 231                 if (lbutton == button &&
 232                     lwindow == e->xbutton.window &&
 233                     e->xbutton.time - config_mouse_dclicktime <=
 234                     ltime) {
 235                     dclick = TRUE;
 236                     lbutton = 0;
 237                 } else {
 238                     lbutton = button;
 239                     lwindow = e->xbutton.window;
 240                 }
 241             } else {
 242                 lbutton = 0;
 243                 lwindow = None;
 244             }
 245
 246             button = 0;
 247             state = 0;
 248             ltime = e->xbutton.time;
 249         }
 250         fire_button(MouseAction_Release, context,
 251                     client, e->xbutton.state,
 252                     e->xbutton.button,
 253                     e->xbutton.x_root, e->xbutton.y_root);
 254         if (click)
 255             fire_button(MouseAction_Click, context,
 256                         client, e->xbutton.state,
 257                         e->xbutton.button,
 258                         e->xbutton.x_root,
 259                         e->xbutton.y_root);
 260         if (dclick)
 261             fire_button(MouseAction_DClick, context,
 262                         client, e->xbutton.state,
 263                         e->xbutton.button,
 264                         e->xbutton.x_root,
 265                         e->xbutton.y_root);
 266         break;
 267
 268     case MotionNotify:
 269         if (button) {
 270             if (ABS(e->xmotion.x_root - px) >=
 271                 config_mouse_threshold ||
 272                 ABS(e->xmotion.y_root - py) >=
 273                 config_mouse_threshold) {
 274                 guint32 corner;
 275
 276                 /* You can't drag on buttons */
 277                 if (context == OB_FRAME_CONTEXT_MAXIMIZE ||
 278                     context == OB_FRAME_CONTEXT_ALLDESKTOPS ||
 279                     context == OB_FRAME_CONTEXT_SHADE ||
 280                     context == OB_FRAME_CONTEXT_ICONIFY ||
 281                     context == OB_FRAME_CONTEXT_ICON ||
 282                     context == OB_FRAME_CONTEXT_CLOSE)
 283                     break;
 284
 285                 if (!client)
 286                     corner = prop_atoms.net_wm_moveresize_size_bottomright;
 287                 else
 288                     corner =
 289                         pick_corner(e->xmotion.x_root,
 290                                     e->xmotion.y_root,
 291                                     client->frame->area.x,
 292                                     client->frame->area.y,
 293                                     /* use the client size because the frame
 294                                        can be differently sized (shaded
 295                                        windows) and we want this based on the
 296                                        clients size */
 297                                     client->area.width +
 298                                     client->frame->size.left +
 299                                     client->frame->size.right,
 300                                     client->area.height +
 301                                     client->frame->size.top +
 302                                     client->frame->size.bottom);
 303                 fire_motion(MouseAction_Motion, context,
 304                             client, state, button, px, py, corner);
 305                 button = 0;
 306                 state = 0;
 307             }
 308         }
 309         break;
 310
 311     default:
 312         g_assert_not_reached();
 313     }
 314 }
 315
 316 gboolean mouse_bind(char *buttonstr, char *contextstr, ObMouseAction mact,
 317                     ObAction *action)
 318 {
 319     guint state, button;
 320     ObFrameContext context;
 321     ObMouseBinding *b;
 322     GSList *it;
 323
 324     if (!translate_button(buttonstr, &state, &button)) {
 325         g_warning("invalid button '%s'", buttonstr);
 326         return FALSE;
 327     }
 328
 329     contextstr = g_ascii_strdown(contextstr, -1);
 330     context = frame_context_from_string(contextstr);
 331     if (!context) {
 332         g_warning("invalid context '%s'", contextstr);
 333         g_free(contextstr);
 334         return FALSE;
 335     }
 336     g_free(contextstr);
 337
 338     for (it = bound_contexts[context]; it != NULL; it = it->next){
 339         b = it->data;
 340         if (b->state == state && b->button == button) {
 341             b->actions[mact] = g_slist_append(b->actions[mact], action);
 342             return TRUE;
 343         }
 344     }
 345
 346     grab_all_clients(FALSE);
 347
 348     /* add the binding */
 349     b = g_new0(ObMouseBinding, 1);
 350     b->state = state;
 351     b->button = button;
 352     b->actions[mact] = g_slist_append(NULL, action);
 353     bound_contexts[context] = g_slist_append(bound_contexts[context], b);
 354
 355     grab_all_clients(TRUE);
 356
 357     return TRUE;
 358 }
 359
 360 void mouse_startup()
 361 {
 362 }
 363
 364 void mouse_shutdown()
 365 {
 366     grab_all_clients(FALSE);
 367     clearall();
 368 }