Dogcows Code - chaz/openbox/blob - plugins/keyboard/keyboard.c

   1 #include "kernel/focus.h"
   2 #include "kernel/dispatch.h"
   3 #include "kernel/openbox.h"
   4 #include "kernel/event.h"
   5 #include "kernel/grab.h"
   6 #include "kernel/action.h"
   7 #include "kernel/parse.h"
   8 #include "tree.h"
   9 #include "keyboard.h"
  10 #include "keyparse.h"
  11 #include "translate.h"
  12 #include <glib.h>
  13
  14 void plugin_setup_config()
  15 {
  16     parse_reg_section("keyboard", keyparse, NULL);
  17 }
  18
  19 KeyBindingTree *firstnode = NULL;
  20
  21 static KeyBindingTree *curpos;
  22 static guint reset_key, reset_state;
  23 static gboolean grabbed;
  24
  25 static void grab_keys(gboolean grab)
  26 {
  27     if (!grab) {
  28         ungrab_all_keys();
  29     } else {
  30         KeyBindingTree *p = firstnode;
  31         while (p) {
  32             grab_key(p->key, p->state, GrabModeSync);
  33             p = p->next_sibling;
  34         }
  35     }
  36 }
  37
  38 static void reset_chains()
  39 {
  40     /* XXX kill timer */
  41     curpos = NULL;
  42     if (grabbed) {
  43         grabbed = FALSE;
  44         grab_keyboard(FALSE);
  45     } else
  46         XAllowEvents(ob_display, AsyncKeyboard, event_lasttime);
  47 }
  48
  49 gboolean kbind(GList *keylist, Action *action)
  50 {
  51     KeyBindingTree *tree, *t;
  52     gboolean conflict;
  53
  54     g_assert(keylist != NULL);
  55     g_assert(action != NULL);
  56
  57     if (!(tree = tree_build(keylist)))
  58         return FALSE;
  59     if ((t = tree_find(tree, &conflict)) != NULL) {
  60         /* already bound to something */
  61         g_message("keychain is already bound");
  62         tree_destroy(tree);
  63         return FALSE;
  64     }
  65     if (conflict) {
  66         g_message("conflict with binding");
  67         tree_destroy(tree);
  68         return FALSE;
  69     }
  70
  71     /* grab the server here to make sure no key presses go missed */
  72     grab_server(TRUE);
  73     grab_keys(FALSE);
  74
  75     /* set the action */
  76     t = tree;
  77     while (t->first_child) t = t->first_child;
  78     t->action = action;
  79     /* assimilate this built tree into the main tree. assimilation
  80        destroys/uses the tree */
  81     tree_assimilate(tree);
  82
  83     grab_keys(TRUE);
  84     grab_server(FALSE);
  85
  86     return TRUE;
  87 }
  88
  89 static void press(ObEvent *e, void *foo)
  90 {
  91     if (e->data.x.e->xkey.keycode == reset_key &&
  92         e->data.x.e->xkey.state == reset_state) {
  93         reset_chains();
  94     } else {
  95         KeyBindingTree *p;
  96         if (curpos == NULL)
  97             p = firstnode;
  98         else
  99             p = curpos->first_child;
 100         while (p) {
 101             if (p->key == e->data.x.e->xkey.keycode &&
 102                 p->state == e->data.x.e->xkey.state) {
 103                 if (p->first_child != NULL) { /* part of a chain */
 104                     /* XXX TIMER */
 105                     if (!grabbed) {
 106                         grab_keyboard(TRUE);
 107                         grabbed = TRUE;
 108                         XAllowEvents(ob_display, AsyncKeyboard,
 109                                      event_lasttime);
 110                     }
 111                     curpos = p;
 112                 } else {
 113                     if (p->action->func != NULL) {
 114                         p->action->data.any.c = focus_client;
 115
 116                         g_assert(!(p->action->func == action_move ||
 117                                    p->action->func == action_resize));
 118
 119                         p->action->func(&p->action->data);
 120                     }
 121
 122                     reset_chains();
 123                 }
 124                 break;
 125             }
 126             p = p->next_sibling;
 127         }
 128     }
 129 }
 130
 131 void plugin_startup()
 132 {
 133     curpos = NULL;
 134     grabbed = FALSE;
 135
 136     dispatch_register(Event_X_KeyPress, (EventHandler)press, NULL);
 137
 138     translate_key("C-g", &reset_state, &reset_key);
 139 }
 140
 141 void plugin_shutdown()
 142 {
 143     dispatch_register(0, (EventHandler)press, NULL);
 144
 145     grab_keys(FALSE);
 146     tree_destroy(firstnode);
 147     firstnode = NULL;
 148     grab_keys(TRUE);
 149 }
 150