Dogcows Code - chaz/openbox/blob - openbox/mouse.c

   1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
   2
   3    mouse.c for the Openbox window manager
   4    Copyright (c) 2006        Mikael Magnusson
   5    Copyright (c) 2003-2007   Dana Jansens
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    See the COPYING file for a copy of the GNU General Public License.
  18 */
  19
  20 #include "openbox.h"
  21 #include "config.h"
  22 #include "xerror.h"
  23 #include "action.h"
  24 #include "event.h"
  25 #include "client.h"
  26 #include "prop.h"
  27 #include "grab.h"
  28 #include "frame.h"
  29 #include "translate.h"
  30 #include "mouse.h"
  31 #include "gettext.h"
  32
  33 #include <glib.h>
  34
  35 typedef struct {
  36     guint state;
  37     guint button;
  38     GSList *actions[OB_NUM_MOUSE_ACTIONS]; /* lists of Action pointers */
  39 } ObMouseBinding;
  40
  41 #define FRAME_CONTEXT(co, cl) ((cl && cl->type != OB_CLIENT_TYPE_DESKTOP) ? \
  42                                co == OB_FRAME_CONTEXT_FRAME : FALSE)
  43 #define CLIENT_CONTEXT(co, cl) ((cl && cl->type == OB_CLIENT_TYPE_DESKTOP) ? \
  44                                 co == OB_FRAME_CONTEXT_DESKTOP : \
  45                                 co == OB_FRAME_CONTEXT_CLIENT)
  46
  47 /* Array of GSList*s of ObMouseBinding*s. */
  48 static GSList *bound_contexts[OB_FRAME_NUM_CONTEXTS];
  49
  50 ObFrameContext mouse_button_frame_context(ObFrameContext context,
  51                                           guint button)
  52 {
  53     GSList *it;
  54     ObFrameContext x = context;
  55
  56     for (it = bound_contexts[context]; it; it = g_slist_next(it)) {
  57         ObMouseBinding *b = it->data;
  58
  59         if (b->button == button)
  60             return context;
  61     }
  62
  63     switch (context) {
  64     case OB_FRAME_CONTEXT_NONE:
  65     case OB_FRAME_CONTEXT_DESKTOP:
  66     case OB_FRAME_CONTEXT_CLIENT:
  67     case OB_FRAME_CONTEXT_TITLEBAR:
  68     case OB_FRAME_CONTEXT_HANDLE:
  69     case OB_FRAME_CONTEXT_FRAME:
  70     case OB_FRAME_CONTEXT_MOVE_RESIZE:
  71         break;
  72     case OB_FRAME_CONTEXT_BLCORNER:
  73     case OB_FRAME_CONTEXT_BRCORNER:
  74         x = OB_FRAME_CONTEXT_HANDLE;
  75         break;
  76     case OB_FRAME_CONTEXT_TLCORNER:
  77     case OB_FRAME_CONTEXT_TRCORNER:
  78     case OB_FRAME_CONTEXT_MAXIMIZE:
  79     case OB_FRAME_CONTEXT_ALLDESKTOPS:
  80     case OB_FRAME_CONTEXT_SHADE:
  81     case OB_FRAME_CONTEXT_ICONIFY:
  82     case OB_FRAME_CONTEXT_ICON:
  83     case OB_FRAME_CONTEXT_CLOSE:
  84         x = OB_FRAME_CONTEXT_TITLEBAR;
  85         break;
  86     case OB_FRAME_NUM_CONTEXTS:
  87         g_assert_not_reached();
  88     }
  89
  90     return x;
  91 }
  92
  93 void mouse_grab_for_client(ObClient *client, gboolean grab)
  94 {
  95     gint i;
  96     GSList *it;
  97
  98     for (i = 0; i < OB_FRAME_NUM_CONTEXTS; ++i)
  99         for (it = bound_contexts[i]; it; it = g_slist_next(it)) {
 100             /* grab/ungrab the button */
 101             ObMouseBinding *b = it->data;
 102             Window win;
 103             gint mode;
 104             guint mask;
 105
 106             if (FRAME_CONTEXT(i, client)) {
 107                 win = client->frame->window;
 108                 mode = GrabModeAsync;
 109                 mask = ButtonPressMask | ButtonMotionMask | ButtonReleaseMask;
 110             } else if (CLIENT_CONTEXT(i, client)) {
 111                 win = client->frame->plate;
 112                 mode = GrabModeSync; /* this is handled in event */
 113                 mask = ButtonPressMask; /* can't catch more than this with Sync
 114                                            mode the release event is
 115                                            manufactured in event() */
 116             } else continue;
 117
 118             if (grab)
 119                 grab_button_full(b->button, b->state, win, mask, mode,
 120                                  OB_CURSOR_NONE);
 121             else
 122                 ungrab_button(b->button, b->state, win);
 123         }
 124 }
 125
 126 static void grab_all_clients(gboolean grab)
 127 {
 128     GList *it;
 129
 130     for (it = client_list; it; it = g_list_next(it))
 131         mouse_grab_for_client(it->data, grab);
 132 }
 133
 134 void mouse_unbind_all()
 135 {
 136     gint i;
 137     GSList *it;
 138
 139     for(i = 0; i < OB_FRAME_NUM_CONTEXTS; ++i) {
 140         for (it = bound_contexts[i]; it; it = g_slist_next(it)) {
 141             ObMouseBinding *b = it->data;
 142             gint j;
 143
 144             for (j = 0; j < OB_NUM_MOUSE_ACTIONS; ++j) {
 145                 GSList *it;
 146
 147                 for (it = b->actions[j]; it; it = g_slist_next(it))
 148                     action_unref(it->data);
 149                 g_slist_free(b->actions[j]);
 150             }
 151             g_free(b);
 152         }
 153         g_slist_free(bound_contexts[i]);
 154         bound_contexts[i] = NULL;
 155     }
 156 }
 157
 158 static gboolean fire_binding(ObMouseAction a, ObFrameContext context,
 159                              ObClient *c, guint state,
 160                              guint button, gint x, gint y, Time time)
 161 {
 162     GSList *it;
 163     ObMouseBinding *b;
 164
 165     for (it = bound_contexts[context]; it; it = g_slist_next(it)) {
 166         b = it->data;
 167         if (b->state == state && b->button == button)
 168             break;
 169     }
 170     /* if not bound, then nothing to do! */
 171     if (it == NULL) return FALSE;
 172
 173     action_run_mouse(b->actions[a], c, context, state, button, x, y, time);
 174     return TRUE;
 175 }
 176
 177 void mouse_event(ObClient *client, XEvent *e)
 178 {
 179     static Time ltime;
 180     static guint button = 0, state = 0, lbutton = 0;
 181     static Window lwindow = None;
 182     static gint px, py;
 183
 184     ObFrameContext context;
 185     gboolean click = FALSE;
 186     gboolean dclick = FALSE;
 187
 188     switch (e->type) {
 189     case ButtonPress:
 190         context = frame_context(client, e->xany.window);
 191         context = mouse_button_frame_context(context, e->xbutton.button);
 192
 193         px = e->xbutton.x_root;
 194         py = e->xbutton.y_root;
 195         button = e->xbutton.button;
 196         state = e->xbutton.state;
 197
 198         fire_binding(OB_MOUSE_ACTION_PRESS, context,
 199                      client, e->xbutton.state,
 200                      e->xbutton.button,
 201                      e->xbutton.x_root, e->xbutton.y_root,
 202                      e->xbutton.time);
 203
 204         if (CLIENT_CONTEXT(context, client)) {
 205             /* Replay the event, so it goes to the client*/
 206             XAllowEvents(ob_display, ReplayPointer, event_curtime);
 207             /* Fall through to the release case! */
 208         } else
 209             break;
 210
 211     case ButtonRelease:
 212         context = frame_context(client, e->xany.window);
 213         context = mouse_button_frame_context(context, e->xbutton.button);
 214
 215         if (e->xbutton.button == button) {
 216             /* clicks are only valid if its released over the window */
 217             gint junk1, junk2;
 218             Window wjunk;
 219             guint ujunk, b, w, h;
 220             /* this can cause errors to occur when the window closes */
 221             xerror_set_ignore(TRUE);
 222             junk1 = XGetGeometry(ob_display, e->xbutton.window,
 223                                  &wjunk, &junk1, &junk2, &w, &h, &b, &ujunk);
 224             xerror_set_ignore(FALSE);
 225             if (junk1) {
 226                 if (e->xbutton.x >= (signed)-b &&
 227                     e->xbutton.y >= (signed)-b &&
 228                     e->xbutton.x < (signed)(w+b) &&
 229                     e->xbutton.y < (signed)(h+b)) {
 230                     click = TRUE;
 231                     /* double clicks happen if there were 2 in a row! */
 232                     if (lbutton == button &&
 233                         lwindow == e->xbutton.window &&
 234                         e->xbutton.time - config_mouse_dclicktime <=
 235                         ltime) {
 236                         dclick = TRUE;
 237                         lbutton = 0;
 238                     } else {
 239                         lbutton = button;
 240                         lwindow = e->xbutton.window;
 241                     }
 242                 } else {
 243                     lbutton = 0;
 244                     lwindow = None;
 245                 }
 246             }
 247
 248             button = 0;
 249             state = 0;
 250             ltime = e->xbutton.time;
 251         }
 252         fire_binding(OB_MOUSE_ACTION_RELEASE, context,
 253                      client, e->xbutton.state,
 254                      e->xbutton.button,
 255                      e->xbutton.x_root, e->xbutton.y_root,
 256                      e->xbutton.time);
 257         if (click)
 258             fire_binding(OB_MOUSE_ACTION_CLICK, context,
 259                          client, e->xbutton.state,
 260                          e->xbutton.button,
 261                          e->xbutton.x_root,
 262                          e->xbutton.y_root,
 263                          e->xbutton.time);
 264         if (dclick)
 265             fire_binding(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                          e->xbutton.time);
 271         break;
 272
 273     case MotionNotify:
 274         if (button) {
 275             context = frame_context(client, e->xany.window);
 276             context = mouse_button_frame_context(context, button);
 277
 278             if (ABS(e->xmotion.x_root - px) >=
 279                 config_mouse_threshold ||
 280                 ABS(e->xmotion.y_root - py) >=
 281                 config_mouse_threshold) {
 282
 283                 /* You can't drag on buttons */
 284                 if (context == OB_FRAME_CONTEXT_MAXIMIZE ||
 285                     context == OB_FRAME_CONTEXT_ALLDESKTOPS ||
 286                     context == OB_FRAME_CONTEXT_SHADE ||
 287                     context == OB_FRAME_CONTEXT_ICONIFY ||
 288                     context == OB_FRAME_CONTEXT_ICON ||
 289                     context == OB_FRAME_CONTEXT_CLOSE)
 290                     break;
 291
 292                 fire_binding(OB_MOUSE_ACTION_MOTION, context,
 293                              client, state, button, px, py, e->xmotion.time);
 294                 button = 0;
 295                 state = 0;
 296             }
 297         }
 298         break;
 299
 300     default:
 301         g_assert_not_reached();
 302     }
 303 }
 304
 305 gboolean mouse_bind(const gchar *buttonstr, const gchar *contextstr,
 306                     ObMouseAction mact, ObAction *action)
 307 {
 308     guint state, button;
 309     ObFrameContext context;
 310     ObMouseBinding *b;
 311     GSList *it;
 312
 313     if (!translate_button(buttonstr, &state, &button)) {
 314         g_message(_("Invalid button '%s' in pointer binding"), buttonstr);
 315         return FALSE;
 316     }
 317
 318     context = frame_context_from_string(contextstr);
 319     if (!context) {
 320         g_message(_("Invalid context '%s' in pointer binding"), contextstr);
 321         return FALSE;
 322     }
 323
 324     for (it = bound_contexts[context]; it; it = g_slist_next(it)) {
 325         b = it->data;
 326         if (b->state == state && b->button == button) {
 327             b->actions[mact] = g_slist_append(b->actions[mact], action);
 328             return TRUE;
 329         }
 330     }
 331
 332     /* when there are no modifiers in the binding, then the action cannot
 333        be interactive */
 334     if (!state && action->data.any.interactive) {
 335         action->data.any.interactive = FALSE;
 336         action->data.inter.final = TRUE;
 337     }
 338
 339     /* add the binding */
 340     b = g_new0(ObMouseBinding, 1);
 341     b->state = state;
 342     b->button = button;
 343     b->actions[mact] = g_slist_append(NULL, action);
 344     bound_contexts[context] = g_slist_append(bound_contexts[context], b);
 345
 346     return TRUE;
 347 }
 348
 349 void mouse_startup(gboolean reconfig)
 350 {
 351     grab_all_clients(TRUE);
 352 }
 353
 354 void mouse_shutdown(gboolean reconfig)
 355 {
 356     grab_all_clients(FALSE);
 357     mouse_unbind_all();
 358 }