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 event(ObEvent *e, void *foo)
  90 {
  91     static KeyBindingTree *grabbed_key = NULL;
  92
  93     if (e->type == Event_X_KeyRelease) {
  94         if (grabbed_key) {
  95             if (!(grabbed_key->state & e->data.x.e->xkey.state)) {
  96                 grabbed_key->action->data.cycle.final = TRUE;
  97                 grabbed_key->action->func(&grabbed_key->action->data);
  98                 grab_keyboard(FALSE);
  99                 grabbed_key = FALSE;
 100             }
 101         }
 102         return;
 103     }
 104
 105     if (e->data.x.e->xkey.keycode == reset_key &&
 106         e->data.x.e->xkey.state == reset_state) {
 107         reset_chains();
 108     } else {
 109         KeyBindingTree *p;
 110         if (curpos == NULL)
 111             p = firstnode;
 112         else
 113             p = curpos->first_child;
 114         while (p) {
 115             if (p->key == e->data.x.e->xkey.keycode &&
 116                 p->state == e->data.x.e->xkey.state) {
 117                 if (p->first_child != NULL) { /* part of a chain */
 118                     /* XXX TIMER */
 119                     if (!grabbed) {
 120                         grab_keyboard(TRUE);
 121                         grabbed = TRUE;
 122                         XAllowEvents(ob_display, AsyncKeyboard,
 123                                      event_lasttime);
 124                     }
 125                     curpos = p;
 126                 } else {
 127                     if (p->action->func != NULL) {
 128                         p->action->data.any.c = focus_client;
 129
 130                         g_assert(!(p->action->func == action_move ||
 131                                    p->action->func == action_resize));
 132
 133                         if (p->action->func == action_cycle_windows)
 134                             p->action->data.cycle.final = FALSE;
 135
 136                         p->action->func(&p->action->data);
 137
 138                         if (p->action->func == action_cycle_windows) {
 139                             grab_keyboard(TRUE);
 140                             grabbed_key = p;
 141                         }
 142                     }
 143
 144                     reset_chains();
 145                 }
 146                 break;
 147             }
 148             p = p->next_sibling;
 149         }
 150     }
 151 }
 152
 153 void plugin_startup()
 154 {
 155     curpos = NULL;
 156     grabbed = FALSE;
 157
 158     dispatch_register(Event_X_KeyPress | Event_X_KeyRelease, (EventHandler)event, NULL);
 159
 160     translate_key("C-g", &reset_state, &reset_key);
 161 }
 162
 163 void plugin_shutdown()
 164 {
 165     dispatch_register(0, (EventHandler)event, NULL);
 166
 167     grab_keys(FALSE);
 168     tree_destroy(firstnode);
 169     firstnode = NULL;
 170     grab_keys(TRUE);
 171 }
 172