plugins/keyboard/keyboard.c

   1 #include "../../kernel/focus.h"
   2 #include "../../kernel/dispatch.h"
   3 #include "../../kernel/openbox.h"
   4 #include "../../kernel/grab.h"
   5 #include "../../kernel/action.h"
   6 #include "tree.h"
   7 #include "keyboard.h"
   8 #include <glib.h>
   9
  10 void plugin_setup_config()
  11 {
  12 }
  13
  14 KeyBindingTree *firstnode;
  15
  16 static KeyBindingTree *curpos;
  17 static guint reset_key, reset_state;
  18 static gboolean grabbed;
  19
  20 static void grab_keys(gboolean grab)
  21 {
  22     if (!grab) {
  23         ungrab_all_keys();
  24     } else {
  25         KeyBindingTree *p = firstnode;
  26         while (p) {
  27             grab_key(p->key, p->state, GrabModeSync);
  28             p = p->next_sibling;
  29         }
  30     }
  31 }
  32
  33 static void reset_chains()
  34 {
  35     /* XXX kill timer */
  36     curpos = NULL;
  37     if (grabbed) {
  38         grabbed = FALSE;
  39         grab_keyboard(FALSE);
  40     }
  41 }
  42
  43 static gboolean kbind(GList *keylist, Action *action)
  44 {
  45     KeyBindingTree *tree, *t;
  46     gboolean conflict;
  47
  48     g_assert(keylist != NULL);
  49     g_assert(action != NULL);
  50
  51     if (!(tree = tree_build(keylist))) {
  52         g_warning("invalid binding");
  53         return FALSE;
  54     }
  55     if ((t = tree_find(tree, &conflict)) != NULL) {
  56         /* already bound to something */
  57         g_warning("keychain is already bound");
  58         tree_destroy(tree);
  59         return FALSE;
  60     }
  61     if (conflict) {
  62         g_warning("conflict with binding");
  63         tree_destroy(tree);
  64         return FALSE;
  65     }
  66
  67     /* grab the server here to make sure no key presses go missed */
  68     grab_server(TRUE);
  69     grab_keys(FALSE);
  70
  71     /* set the action */
  72     t = tree;
  73     while (t->first_child) t = t->first_child;
  74     t->action = action;
  75     /* assimilate this built tree into the main tree. assimilation
  76        destroys/uses the tree */
  77     tree_assimilate(tree);
  78
  79     grab_keys(TRUE);
  80     grab_server(FALSE);
  81
  82     return TRUE;
  83 }
  84
  85 static void press(ObEvent *e, void *foo)
  86 {
  87     if (e->data.x.e->xkey.keycode == reset_key &&
  88         e->data.x.e->xkey.state == reset_state) {
  89         reset_chains();
  90         XAllowEvents(ob_display, AsyncKeyboard, CurrentTime);
  91     } else {
  92         KeyBindingTree *p;
  93         if (curpos == NULL)
  94             p = firstnode;
  95         else
  96             p = curpos->first_child;
  97         while (p) {
  98             if (p->key == e->data.x.e->xkey.keycode &&
  99                 p->state == e->data.x.e->xkey.state) {
 100                 if (p->first_child != NULL) { /* part of a chain */
 101                     /* XXX TIMER */
 102                     if (!grabbed) {
 103                         grab_keyboard(TRUE);
 104                         grabbed = TRUE;
 105                     }
 106                     curpos = p;
 107                     XAllowEvents(ob_display, AsyncKeyboard, CurrentTime);
 108                 } else {
 109                     if (p->action->func != NULL) {
 110                         p->action->data.any.c = focus_client;
 111
 112                         g_assert(!(p->action->func == action_move ||
 113                                    p->action->func == action_resize));
 114
 115                         p->action->func(&p->action->data);
 116                     }
 117
 118                     XAllowEvents(ob_display, AsyncKeyboard, CurrentTime);
 119                     reset_chains();
 120                 }
 121                 break;
 122             }
 123             p = p->next_sibling;
 124         }
 125     }
 126 }
 127
 128 static void binddef()
 129 {
 130     GList *list = g_list_append(NULL, NULL);
 131     Action *a;
 132
 133     /* When creating an Action struct, all of the data elements in the
 134        appropriate struct need to be set, except the Client*, which will be set
 135        at call-time when then action function is used.
 136     */
 137
 138     list->data = "A-Right";
 139     a = action_new(action_next_desktop);
 140     a->data.nextprevdesktop.wrap = TRUE;
 141     kbind(list, a);
 142
 143     list->data = "A-Left";
 144     a = action_new(action_previous_desktop);
 145     a->data.nextprevdesktop.wrap = TRUE;
 146     kbind(list, a);
 147
 148     list->data = "A-1";
 149     a = action_new(action_desktop);
 150     a->data.desktop.desk = 0;
 151     kbind(list, a);
 152
 153     list->data = "A-2";
 154     a = action_new(action_desktop);
 155     a->data.desktop.desk = 1;
 156     kbind(list, a);
 157
 158     list->data = "A-3";
 159     a = action_new(action_desktop);
 160     a->data.desktop.desk = 2;
 161     kbind(list, a);
 162
 163     list->data = "A-4";
 164     a = action_new(action_desktop);
 165     a->data.desktop.desk = 3;
 166     kbind(list, a);
 167
 168     list->data = "A-space";
 169     a = action_new(action_execute);
 170     a->data.execute.path = g_strdup("xterm");
 171     kbind(list, a);
 172
 173     list->data = "C-A-Escape";
 174     a = action_new(action_execute);
 175     a->data.execute.path = g_strdup("xlock -nolock -mode puzzle");
 176     kbind(list, a);
 177 }
 178
 179 void plugin_startup()
 180 {
 181     dispatch_register(Event_X_KeyPress, (EventHandler)press, NULL);
 182
 183     /* XXX parse config file! */
 184     binddef();
 185 }
 186
 187 void plugin_shutdown()
 188 {
 189     dispatch_register(0, (EventHandler)press, NULL);
 190
 191     grab_keys(FALSE);
 192     tree_destroy(firstnode);
 193     firstnode = NULL;
 194     grab_keys(TRUE);
 195 }
 196