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