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