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 && grab_keyboard(TRUE)) {
 116         interactive_grab = TRUE;
 117         grabbed_state = state;
 118         grabbed_client = client;
 119         grabbed_action = action;
 120         grabbed_context = context;
 121         grab_pointer(TRUE, None);
 122     }
 123 }
 124
 125 gboolean keyboard_process_interactive_grab(const XEvent *e,
 126                                            ObClient **client,
 127                                            ObFrameContext *context)
 128 {
 129     gboolean handled = FALSE;
 130     gboolean done = FALSE;
 131
 132     if (interactive_grab) {
 133         *client = grabbed_client;
 134         *context = grabbed_context;
 135
 136         if ((e->type == KeyRelease &&
 137              !(grabbed_state & e->xkey.state)))
 138             done = TRUE;
 139         else if (e->type == KeyPress) {
 140             if (e->xkey.keycode == ob_keycode(OB_KEY_RETURN))
 141                 done = TRUE;
 142             else if (e->xkey.keycode == ob_keycode(OB_KEY_ESCAPE)) {
 143                 if (grabbed_action->func == action_cycle_windows) {
 144                     grabbed_action->data.cycle.cancel = TRUE;
 145                 }
 146                 if (grabbed_action->func == action_desktop_dir) {
 147                     grabbed_action->data.desktopdir.cancel = TRUE;
 148                 }
 149                 if (grabbed_action->func == action_send_to_desktop_dir)
 150                 {
 151                     grabbed_action->data.sendtodir.cancel = TRUE;
 152                 }
 153                 done = TRUE;
 154             }
 155         }
 156         if (done) {
 157             if (grabbed_action->func == action_cycle_windows) {
 158                 grabbed_action->data.cycle.final = TRUE;
 159             }
 160             if (grabbed_action->func == action_desktop_dir) {
 161                 grabbed_action->data.desktopdir.final = TRUE;
 162             }
 163             if (grabbed_action->func == action_send_to_desktop_dir) {
 164                 grabbed_action->data.sendtodir.final = TRUE;
 165             }
 166
 167             grabbed_action->func(&grabbed_action->data);
 168
 169             interactive_grab = FALSE;
 170             grab_keyboard(FALSE);
 171             grab_pointer(FALSE, None);
 172             keyboard_reset_chains();
 173
 174             handled = TRUE;
 175         }
 176     }
 177
 178     return handled;
 179 }
 180
 181 void keyboard_event(ObClient *client, const XEvent *e)
 182 {
 183     KeyBindingTree *p;
 184
 185     g_assert(e->type == KeyPress);
 186
 187     if (e->xkey.keycode == config_keyboard_reset_keycode &&
 188         e->xkey.state == config_keyboard_reset_state)
 189     {
 190         keyboard_reset_chains();
 191         return;
 192     }
 193
 194     if (curpos == NULL)
 195         p = keyboard_firstnode;
 196     else
 197         p = curpos->first_child;
 198     while (p) {
 199         if (p->key == e->xkey.keycode &&
 200             p->state == e->xkey.state) {
 201             if (p->first_child != NULL) { /* part of a chain */
 202                 if (chain_timer) timer_stop(chain_timer);
 203                 /* 5 second timeout for chains */
 204                 chain_timer = timer_start(5000*1000, chain_timeout,
 205                                           NULL);
 206                 curpos = p;
 207                 grab_keys(TRUE);
 208             } else {
 209                 GSList *it;
 210                 for (it = p->actions; it; it = it->next) {
 211                     ObAction *act = it->data;
 212                     if (act->func != NULL) {
 213                         act->data.any.c = client;
 214
 215                         if (act->func == action_cycle_windows)
 216                         {
 217                             act->data.cycle.final = FALSE;
 218                             act->data.cycle.cancel = FALSE;
 219                         }
 220                         if (act->func == action_desktop_dir)
 221                         {
 222                             act->data.desktopdir.final = FALSE;
 223                             act->data.desktopdir.cancel = FALSE;
 224                         }
 225                         if (act->func == action_send_to_desktop_dir)
 226                         {
 227                             act->data.sendtodir.final = FALSE;
 228                             act->data.sendtodir.cancel = FALSE;
 229                         }
 230
 231                         if (act->func == action_moveresize)
 232                         {
 233                             screen_pointer_pos(&act->data.moveresize.x,
 234                                                &act->data.moveresize.y);
 235                         }
 236
 237                         if ((act->func == action_cycle_windows ||
 238                              act->func == action_desktop_dir ||
 239                              act->func == action_send_to_desktop_dir))
 240                         {
 241                             keyboard_interactive_grab(e->xkey.state, client,
 242                                                       0, act);
 243                         }
 244
 245                         if (act->func == action_showmenu)
 246                         {
 247                             act->data.showmenu.x =
 248                                 e->xkey.x_root;
 249                             act->data.showmenu.y =
 250                                 e->xkey.y_root;
 251                         }
 252
 253                         act->data.any.c = client;
 254                         act->func(&act->data);
 255                     }
 256                 }
 257
 258                 keyboard_reset_chains();
 259             }
 260             break;
 261         }
 262         p = p->next_sibling;
 263     }
 264 }
 265
 266 void keyboard_startup()
 267 {
 268     grab_keys(TRUE);
 269 }
 270
 271 void keyboard_shutdown()
 272 {
 273     tree_destroy(keyboard_firstnode);
 274     keyboard_firstnode = NULL;
 275     grab_keys(FALSE);
 276 }
 277