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 "keyaction.h"
   9 #include <glib.h>
  10
  11 KeyBindingTree *firstnode;
  12
  13 static KeyBindingTree *curpos;
  14 static guint reset_key, reset_state;
  15 static gboolean grabbed;
  16
  17 static void grab_keys(gboolean grab)
  18 {
  19     if (!grab) {
  20         XUngrabKey(ob_display, AnyKey, AnyModifier, ob_root);
  21     } else {
  22         KeyBindingTree *p = firstnode;
  23         while (p) {
  24             XGrabKey(ob_display, p->key, p->state, ob_root, FALSE,
  25                      GrabModeAsync, GrabModeSync);
  26             p = p->next_sibling;
  27         }
  28     }
  29 }
  30
  31 static void reset_chains()
  32 {
  33     /* XXX kill timer */
  34     curpos = NULL;
  35     if (grabbed) {
  36         grabbed = FALSE;
  37         grab_keyboard(FALSE);
  38     }
  39 }
  40
  41 static void clearall()
  42 {
  43     grab_keys(FALSE);
  44     tree_destroy(firstnode);
  45     firstnode = NULL;
  46     grab_keys(TRUE);
  47 }
  48
  49 static gboolean bind(GList *keylist, KeyAction *action)
  50 {
  51     KeyBindingTree *tree, *t;
  52     gboolean conflict;
  53
  54     if (!(tree = tree_build(keylist))) {
  55         g_warning("invalid binding");
  56         return FALSE;
  57     }
  58
  59     t = tree_find(tree, &conflict);
  60     if (conflict) {
  61         g_warning("conflict with binding");
  62         tree_destroy(tree);
  63         return FALSE;
  64     }
  65     if (t != NULL) {
  66         /* already bound to something */
  67         g_warning("keychain is already bound");
  68         tree_destroy(tree);
  69         return FALSE;
  70     }
  71
  72     /* grab the server here to make sure no key pressed go missed */
  73     grab_server(TRUE);
  74
  75     grab_keys(FALSE);
  76
  77     /* set the function */
  78     t = tree;
  79     while (t->first_child) t = t->first_child;
  80     t->action.action = action->action;
  81     t->action.type[0] = action->type[0];
  82     t->action.type[1] = action->type[1];
  83     t->action.data[0] = action->data[0];
  84     t->action.data[1] = action->data[1];
  85
  86     /* assimilate this built tree into the main tree */
  87     tree_assimilate(tree); /* assimilation destroys/uses the tree */
  88
  89     grab_keys(TRUE);
  90
  91     grab_server(FALSE);
  92
  93     return TRUE;
  94 }
  95
  96 static void press(ObEvent *e, void *foo)
  97 {
  98     if (e->data.x.e->xkey.keycode == reset_key &&
  99         e->data.x.e->xkey.state == reset_state) {
 100         reset_chains();
 101         XAllowEvents(ob_display, AsyncKeyboard, CurrentTime);
 102     } else {
 103         KeyBindingTree *p;
 104         if (curpos == NULL)
 105             p = firstnode;
 106         else
 107             p = curpos->first_child;
 108         while (p) {
 109             if (p->key == e->data.x.e->xkey.keycode &&
 110                 p->state == e->data.x.e->xkey.state) {
 111                 if (p->first_child != NULL) { /* part of a chain */
 112                     /* XXX TIMER */
 113                     if (!grabbed) {
 114                         grab_keyboard(TRUE);
 115                         grabbed = TRUE;
 116                         XAllowEvents(ob_display, AsyncKeyboard, CurrentTime);
 117                     }
 118                     curpos = p;
 119                 } else {
 120                     keyaction_do(&p->action, focus_client);
 121
 122                     XAllowEvents(ob_display, AsyncKeyboard, CurrentTime);
 123                     reset_chains();
 124                 }
 125                 break;
 126             }
 127             p = p->next_sibling;
 128         }
 129     }
 130 }
 131
 132 static void binddef()
 133 {
 134     GList *list = g_list_append(NULL, NULL);
 135     KeyAction a;
 136
 137     list->data = "C-Right";
 138     a.action = Action_NextDesktop;
 139     keyaction_set_bool(&a, 0, TRUE);
 140     keyaction_set_none(&a, 1);
 141     bind(list, &a);
 142
 143     list->data = "C-Left";
 144     a.action = Action_PreviousDesktop;
 145     keyaction_set_bool(&a, 0, TRUE);
 146     keyaction_set_none(&a, 1);
 147     bind(list, &a);
 148
 149     list->data = "C-1";
 150     a.action = Action_Desktop;
 151     keyaction_set_uint(&a, 0, 0);
 152     keyaction_set_none(&a, 1);
 153     bind(list, &a);
 154
 155     list->data = "C-2";
 156     a.action = Action_Desktop;
 157     keyaction_set_uint(&a, 0, 1);
 158     keyaction_set_none(&a, 1);
 159     bind(list, &a);
 160
 161     list->data = "C-3";
 162     a.action = Action_Desktop;
 163     keyaction_set_uint(&a, 0, 2);
 164     keyaction_set_none(&a, 1);
 165     bind(list, &a);
 166
 167     list->data = "C-4";
 168     a.action = Action_Desktop;
 169     keyaction_set_uint(&a, 0, 3);
 170     keyaction_set_none(&a, 1);
 171     bind(list, &a);
 172
 173     list->data = "C-space";
 174     a.action = Action_Execute;
 175     keyaction_set_string(&a, 0, "xterm");
 176     keyaction_set_none(&a, 1);
 177     bind(list, &a);
 178 }
 179
 180 void plugin_startup()
 181 {
 182     dispatch_register(Event_X_KeyPress, (EventHandler)press, NULL);
 183
 184     /* XXX parse config file! */
 185     binddef();
 186 }
 187
 188 void plugin_shutdown()
 189 {
 190     dispatch_register(0, (EventHandler)press, NULL);
 191     clearall();
 192 }
 193