openbox/keyboard.c

   1 #include "focus.h"
   2 #include "screen.h"
   3 #include "frame.h"
   4 #include "openbox.h"
   5 #include "event.h"
   6 #include "grab.h"
   7 #include "client.h"
   8 #include "action.h"
   9 #include "prop.h"
  10 #include "timer.h"
  11 #include "config.h"
  12 #include "keytree.h"
  13 #include "keyboard.h"
  14 #include "translate.h"
  15
  16 #include <glib.h>
  17
  18 KeyBindingTree *keyboard_firstnode;
  19
  20 typedef struct {
  21     guint state;
  22     ObClient *client;
  23     ObAction *action;
  24     ObFrameContext context;
  25 } ObInteractiveState;
  26
  27 static GSList *interactive_states;
  28
  29 static KeyBindingTree *curpos;
  30 static ObTimer *chain_timer;
  31
  32 static void grab_for_window(Window win, gboolean grab)
  33 {
  34     KeyBindingTree *p;
  35
  36     ungrab_all_keys(win);
  37
  38     if (grab) {
  39         p = curpos ? curpos->first_child : keyboard_firstnode;
  40         while (p) {
  41             grab_key(p->key, p->state, win, GrabModeAsync);
  42             p = p->next_sibling;
  43         }
  44         if (curpos)
  45             grab_key(config_keyboard_reset_keycode,
  46                      config_keyboard_reset_state,
  47                      win, GrabModeAsync);
  48     }
  49 }
  50
  51 void keyboard_grab_for_client(ObClient *c, gboolean grab)
  52 {
  53     grab_for_window(c->window, grab);
  54 }
  55
  56 static void grab_keys(gboolean grab)
  57 {
  58     GList *it;
  59
  60     grab_for_window(screen_support_win, grab);
  61     for (it = client_list; it; it = g_list_next(it))
  62         grab_for_window(((ObClient*)it->data)->frame->window, grab);
  63 }
  64
  65 void keyboard_reset_chains()
  66 {
  67     if (chain_timer) {
  68         timer_stop(chain_timer);
  69         chain_timer = NULL;
  70     }
  71     if (curpos) {
  72         curpos = NULL;
  73         grab_keys(TRUE);
  74     }
  75 }
  76
  77 static void chain_timeout(ObTimer *t, void *data)
  78 {
  79     keyboard_reset_chains();
  80 }
  81
  82 gboolean keyboard_bind(GList *keylist, ObAction *action)
  83 {
  84     KeyBindingTree *tree, *t;
  85     gboolean conflict;
  86
  87     g_assert(keylist != NULL);
  88     g_assert(action != NULL);
  89
  90     if (!(tree = tree_build(keylist)))
  91         return FALSE;
  92
  93     if ((t = tree_find(tree, &conflict)) != NULL) {
  94         /* already bound to something, use the existing tree */
  95         tree_destroy(tree);
  96         tree = NULL;
  97     } else
  98         t = tree;
  99     while (t->first_child) t = t->first_child;
 100
 101     if (conflict) {
 102         g_warning("conflict with binding");
 103         tree_destroy(tree);
 104         return FALSE;
 105     }
 106
 107     /* set the action */
 108     t->actions = g_slist_append(t->actions, action);
 109     /* assimilate this built tree into the main tree. assimilation
 110        destroys/uses the tree */
 111     if (tree) tree_assimilate(tree);
 112
 113     return TRUE;
 114 }
 115
 116 void keyboard_interactive_grab(guint state, ObClient *client,
 117                                ObFrameContext context, ObAction *action)
 118 {
 119     ObInteractiveState *s;
 120
 121     if (!interactive_states) {
 122         if (!grab_keyboard(TRUE))
 123             return;
 124         if (!grab_pointer(TRUE, None)) {
 125             grab_keyboard(FALSE);
 126             return;
 127         }
 128     }
 129
 130     s = g_new(ObInteractiveState, 1);
 131
 132     s->state = state;
 133     s->client = client;
 134     s->action = action;
 135     s->context = context;
 136
 137     interactive_states = g_slist_append(interactive_states, s);
 138 }
 139
 140 gboolean keyboard_process_interactive_grab(const XEvent *e,
 141                                            ObClient **client,
 142                                            ObFrameContext *context)
 143 {
 144     GSList *it, *next;
 145     gboolean handled = FALSE;
 146     gboolean done = FALSE;
 147     gboolean cancel = FALSE;
 148
 149     for (it = interactive_states; it; it = next) {
 150         ObInteractiveState *s = it->data;
 151
 152         next = g_slist_next(it);
 153
 154         *client = s->client;
 155         *context = s->context;
 156
 157         if ((e->type == KeyRelease &&
 158              !(s->state & e->xkey.state)))
 159             done = TRUE;
 160         else if (e->type == KeyPress) {
 161             if (e->xkey.keycode == ob_keycode(OB_KEY_RETURN))
 162                 done = TRUE;
 163             else if (e->xkey.keycode == ob_keycode(OB_KEY_ESCAPE))
 164                 cancel = done = TRUE;
 165         }
 166         if (done) {
 167             if (s->action->func == action_cycle_windows) {
 168                 s->action->data.cycle.cancel = cancel;
 169                 s->action->data.cycle.final = TRUE;
 170             }
 171             if (s->action->func == action_desktop_dir) {
 172                 s->action->data.desktopdir.cancel = cancel;
 173                 s->action->data.desktopdir.final = TRUE;
 174             }
 175             if (s->action->func == action_send_to_desktop_dir) {
 176                 s->action->data.sendtodir.cancel = cancel;
 177                 s->action->data.sendtodir.final = TRUE;
 178             }
 179
 180             s->action->func(&s->action->data);
 181
 182             grab_keyboard(FALSE);
 183             grab_pointer(FALSE, None);
 184             keyboard_reset_chains();
 185
 186             g_free(s);
 187             interactive_states = g_slist_delete_link(interactive_states, it);
 188             handled = TRUE;
 189         }
 190     }
 191
 192     return handled;
 193 }
 194
 195 void keyboard_event(ObClient *client, const XEvent *e)
 196 {
 197     KeyBindingTree *p;
 198
 199     g_assert(e->type == KeyPress);
 200
 201     if (e->xkey.keycode == config_keyboard_reset_keycode &&
 202         e->xkey.state == config_keyboard_reset_state)
 203     {
 204         keyboard_reset_chains();
 205         return;
 206     }
 207
 208     if (curpos == NULL)
 209         p = keyboard_firstnode;
 210     else
 211         p = curpos->first_child;
 212     while (p) {
 213         if (p->key == e->xkey.keycode &&
 214             p->state == e->xkey.state) {
 215             if (p->first_child != NULL) { /* part of a chain */
 216                 if (chain_timer) timer_stop(chain_timer);
 217                 /* 5 second timeout for chains */
 218                 chain_timer = timer_start(5000*1000, chain_timeout,
 219                                           NULL);
 220                 curpos = p;
 221                 grab_keys(TRUE);
 222             } else {
 223                 GSList *it;
 224                 for (it = p->actions; it; it = it->next) {
 225                     ObAction *act = it->data;
 226                     if (act->func != NULL) {
 227                         act->data.any.c = client;
 228
 229                         if (act->func == action_cycle_windows)
 230                         {
 231                             act->data.cycle.final = FALSE;
 232                             act->data.cycle.cancel = FALSE;
 233                         }
 234                         if (act->func == action_desktop_dir)
 235                         {
 236                             act->data.desktopdir.final = FALSE;
 237                             act->data.desktopdir.cancel = FALSE;
 238                         }
 239                         if (act->func == action_send_to_desktop_dir)
 240                         {
 241                             act->data.sendtodir.final = FALSE;
 242                             act->data.sendtodir.cancel = FALSE;
 243                         }
 244
 245                         if (act->func == action_moveresize)
 246                         {
 247                             screen_pointer_pos(&act->data.moveresize.x,
 248                                                &act->data.moveresize.y);
 249                         }
 250
 251                         if ((act->func == action_cycle_windows ||
 252                              act->func == action_desktop_dir ||
 253                              act->func == action_send_to_desktop_dir))
 254                         {
 255                             keyboard_interactive_grab(e->xkey.state, client,
 256                                                       0, act);
 257                         }
 258
 259                         if (act->func == action_showmenu)
 260                         {
 261                             act->data.showmenu.x = e->xkey.x_root;
 262                             act->data.showmenu.y = e->xkey.y_root;
 263                         }
 264
 265                         act->data.any.c = client;
 266                         act->func(&act->data);
 267                     }
 268                 }
 269
 270                 keyboard_reset_chains();
 271             }
 272             break;
 273         }
 274         p = p->next_sibling;
 275     }
 276 }
 277
 278 void keyboard_startup()
 279 {
 280     grab_keys(TRUE);
 281 }
 282
 283 void keyboard_shutdown()
 284 {
 285     tree_destroy(keyboard_firstnode);
 286     keyboard_firstnode = NULL;
 287     grab_keys(FALSE);
 288 }
 289