openbox/plugins/keyboard/keyboard.c

293 lines
8 KiB
C

#include "kernel/focus.h"
#include "kernel/screen.h"
#include "kernel/frame.h"
#include "kernel/dispatch.h"
#include "kernel/openbox.h"
#include "kernel/event.h"
#include "kernel/grab.h"
#include "kernel/client.h"
#include "kernel/action.h"
#include "kernel/prop.h"
#include "kernel/timer.h"
#include "parser/parse.h"
#include "tree.h"
#include "keyboard.h"
#include "translate.h"
#include <glib.h>
/*
<keybind key="C-x">
<action name="ChangeDesktop">
<desktop>3</desktop>
</action>
</keybind>
*/
static void parse_key(xmlDocPtr doc, xmlNodePtr node, GList *keylist)
{
char *key;
Action *action;
xmlNodePtr n, nact;
GList *it;
n = parse_find_node("keybind", node);
while (n) {
if (parse_attr_string("key", n, &key)) {
keylist = g_list_append(keylist, key);
parse_key(doc, n->xmlChildrenNode, keylist);
it = g_list_last(keylist);
g_free(it->data);
keylist = g_list_delete_link(keylist, it);
}
n = parse_find_node("keybind", n->next);
}
if (keylist) {
nact = parse_find_node("action", node);
while (nact) {
if ((action = action_parse(doc, nact))) {
/* validate that its okay for a key binding */
if (action->func == action_moveresize &&
action->data.moveresize.corner !=
prop_atoms.net_wm_moveresize_move_keyboard &&
action->data.moveresize.corner !=
prop_atoms.net_wm_moveresize_size_keyboard) {
action_free(action);
action = NULL;
}
if (action)
kbind(keylist, action);
}
nact = parse_find_node("action", nact->next);
}
}
}
static void parse_xml(xmlDocPtr doc, xmlNodePtr node, void *d)
{
parse_key(doc, node->xmlChildrenNode, NULL);
}
void plugin_setup_config()
{
parse_register("keyboard", parse_xml, NULL);
}
KeyBindingTree *firstnode = NULL;
static KeyBindingTree *curpos;
static guint reset_key, reset_state;
static ObTimer *chain_timer;
static void grab_for_window(Window win, gboolean grab)
{
KeyBindingTree *p;
ungrab_all_keys(win);
if (grab) {
p = curpos ? curpos->first_child : firstnode;
while (p) {
grab_key(p->key, p->state, win, GrabModeAsync);
p = p->next_sibling;
}
if (curpos)
grab_key(reset_key, reset_state, win, GrabModeAsync);
}
}
static void grab_keys(gboolean grab)
{
GList *it;
grab_for_window(screen_support_win, grab);
for (it = client_list; it; it = g_list_next(it))
grab_for_window(((ObClient*)it->data)->frame->window, grab);
}
static void reset_chains()
{
if (chain_timer) {
timer_stop(chain_timer);
chain_timer = NULL;
}
if (curpos) {
curpos = NULL;
grab_keys(TRUE);
}
}
static void chain_timeout(void *data)
{
reset_chains();
}
gboolean kbind(GList *keylist, Action *action)
{
KeyBindingTree *tree, *t;
gboolean conflict;
g_assert(keylist != NULL);
g_assert(action != NULL);
if (!(tree = tree_build(keylist)))
return FALSE;
if ((t = tree_find(tree, &conflict)) != NULL) {
/* already bound to something, use the existing tree */
tree_destroy(tree);
tree = NULL;
} else
t = tree;
while (t->first_child) t = t->first_child;
if (conflict) {
g_warning("conflict with binding");
tree_destroy(tree);
return FALSE;
}
/* set the action */
t->actions = g_slist_append(t->actions, action);
/* assimilate this built tree into the main tree. assimilation
destroys/uses the tree */
if (tree) tree_assimilate(tree);
return TRUE;
}
static void event(ObEvent *e, void *foo)
{
static KeyBindingTree *grabbed_key = NULL;
if (e->type == Event_Client_Mapped) {
grab_for_window(e->data.c.client->window, TRUE);
return;
} else if (e->type == Event_Client_Destroy) {
grab_for_window(e->data.c.client->window, FALSE);
return;
}
if (grabbed_key) {
gboolean done = FALSE;
if ((e->type == Event_X_KeyRelease &&
!(grabbed_key->state & e->data.x.e->xkey.state)))
done = TRUE;
else if (e->type == Event_X_KeyPress) {
if (e->data.x.e->xkey.keycode == ob_keycode(OB_KEY_RETURN))
done = TRUE;
else if (e->data.x.e->xkey.keycode == ob_keycode(OB_KEY_ESCAPE)) {
GSList *it;
for (it = grabbed_key->actions; it; it = it->next) {
Action *act = it->data;
act->data.cycle.cancel = TRUE;
}
done = TRUE;
}
}
if (done) {
GSList *it;
for (it = grabbed_key->actions; it; it = it->next) {
Action *act = it->data;
act->data.cycle.final = TRUE;
act->func(&act->data);
}
grabbed_key = NULL;
grab_keyboard(FALSE);
reset_chains();
return;
}
}
if (e->type == Event_X_KeyRelease)
return;
g_assert(e->type == Event_X_KeyPress);
if (e->data.x.e->xkey.keycode == reset_key &&
e->data.x.e->xkey.state == reset_state) {
reset_chains();
} else {
KeyBindingTree *p;
if (curpos == NULL)
p = firstnode;
else
p = curpos->first_child;
while (p) {
if (p->key == e->data.x.e->xkey.keycode &&
p->state == e->data.x.e->xkey.state) {
if (p->first_child != NULL) { /* part of a chain */
if (chain_timer) timer_stop(chain_timer);
/* 5 second timeout for chains */
chain_timer = timer_start(5000*1000, chain_timeout,
NULL);
curpos = p;
grab_keys(TRUE);
} else {
GSList *it;
for (it = p->actions; it; it = it->next) {
Action *act = it->data;
if (act->func != NULL) {
act->data.any.c = focus_client;
if (act->func == action_cycle_windows) {
act->data.cycle.final = FALSE;
act->data.cycle.cancel = FALSE;
}
if (act->func == action_moveresize) {
screen_pointer_pos(&act->data.moveresize.x,
&act->data.moveresize.y);
}
if (act->func == action_cycle_windows &&
!grabbed_key && grab_keyboard(TRUE)) {
grabbed_key = p;
}
if (act->func == action_showmenu) {
act->data.showmenu.x = e->data.x.e->xkey.x_root;
act->data.showmenu.y = e->data.x.e->xkey.y_root;
}
act->data.any.c = focus_client;
act->func(&act->data);
}
}
reset_chains();
}
break;
}
p = p->next_sibling;
}
}
}
void plugin_startup()
{
curpos = NULL;
chain_timer = NULL;
dispatch_register(Event_Client_Mapped | Event_Client_Destroy |
Event_X_KeyPress | Event_X_KeyRelease,
(EventHandler)event, NULL);
translate_key("C-g", &reset_state, &reset_key);
grab_keys(TRUE);
}
void plugin_shutdown()
{
dispatch_register(0, (EventHandler)event, NULL);
tree_destroy(firstnode);
firstnode = NULL;
grab_keys(FALSE);
}