mirror of
https://github.com/alols/xcape.git
synced 2026-09-10 10:56:16 -04:00
Merge branch 'multikey' of https://github.com/polachok/xcape
This commit is contained in:
Albin Olsson
commit
98be576584
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@ -21,6 +21,13 @@ Minimal building instructions
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$ git clone https://github.com/alols/xcape.git .
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$ make
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Usage
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-----
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$ xcape -e 'Shift_L=Shift_L|parenleft;Shift_R=Shift_R|parenright;Control_L=Escape'
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Will make Left Shift pressed alone generate (, Right shift to generate ) and
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Left Control generate Escape.
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Contact
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-------
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238
xcape.c
238
xcape.c
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@ -35,19 +35,35 @@
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/************************************************************************
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* Internal data types
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***********************************************************************/
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typedef struct _Key_t
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{
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KeyCode key;
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struct _Key_t *next;
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} Key_t;
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typedef struct _KeyMap_t
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{
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KeySym from;
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Key_t *to_keys;
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Bool used;
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Bool pressed;
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Bool mouse;
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int fake;
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struct timeval down_at;
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struct _KeyMap_t *next;
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} KeyMap_t;
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typedef struct _XCape_t
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{
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Display *data_conn;
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Display *ctrl_conn;
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XRecordContext record_ctx;
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KeyCode escape_key;
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pthread_t sigwait_thread;
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sigset_t sigset;
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Bool debug;
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struct timeval down_at;
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KeyMap_t *map;
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} XCape_t;
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/************************************************************************
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* Internal function declarations
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***********************************************************************/
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@ -55,6 +71,7 @@ void *sig_handler (void *user_data);
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void intercept (XPointer user_data, XRecordInterceptData *data);
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void parse_mapping (XCape_t *self, char *mapping);
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/************************************************************************
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* Main function
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@ -62,34 +79,32 @@ void intercept (XPointer user_data, XRecordInterceptData *data);
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int main (int argc, char **argv)
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{
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XCape_t *self = malloc (sizeof (XCape_t));
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int dummy;
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int dummy, ch;
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static char default_mapping[] = "Control_L=Escape";
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char *mapping = default_mapping;
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if (argc > 1)
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{
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if (0 == strncmp(argv[1], "--debug", 7))
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{
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self->debug = True;
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}
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else
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{
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fprintf (stdout, "Usage: %s [--debug]\n", argv[0]);
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fprintf (stdout,
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"Runs as a daemon unless --debug flag is set\n");
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return EXIT_SUCCESS;
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self->debug = False;
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while ((ch = getopt(argc, argv, "de:")) != -1) {
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switch (ch) {
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case 'd':
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self->debug = True;
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break;
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case 'e':
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mapping = optarg;
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break;
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default:
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fprintf (stdout, "Usage: %s [-d] [-e <mapping>]\n", argv[0]);
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fprintf (stdout,
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"Runs as a daemon unless -d flag is set\n");
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return EXIT_SUCCESS;
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}
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}
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else
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{
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self->debug = False;
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if (self->debug != True)
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daemon (0, 0);
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}
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self->data_conn = XOpenDisplay (NULL);
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self->ctrl_conn = XOpenDisplay (NULL);
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self->escape_key = XKeysymToKeycode (self->ctrl_conn,
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XK_Escape);
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if (!XQueryExtension (self->ctrl_conn,
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"XTEST", &dummy, &dummy, &dummy))
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{
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@ -108,6 +123,8 @@ int main (int argc, char **argv)
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exit (EXIT_FAILURE);
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}
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parse_mapping(self, mapping);
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sigemptyset (&self->sigset);
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sigaddset (&self->sigset, SIGINT);
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sigaddset (&self->sigset, SIGTERM);
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@ -181,13 +198,69 @@ void *sig_handler (void *user_data)
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return NULL;
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}
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static
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void handle_key(XCape_t *self, KeyMap_t *key, Bool mouse_pressed, int key_event)
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{
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Key_t *k;
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KeyCode kk;
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if (key->fake) {
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key->fake--;
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return;
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}
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kk = XKeysymToKeycode(self->ctrl_conn, key->from);
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if (key_event == KeyPress)
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{
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if (self->debug) fprintf (stdout, "Key pressed!\n");
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key->pressed = True;
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gettimeofday (&key->down_at, NULL);
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if (mouse_pressed)
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{
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key->used = True;
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}
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}
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else
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{
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if (self->debug) fprintf (stdout, "Key released!\n");
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if (key->used == False)
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{
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struct timeval timev, ms650 = {
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.tv_sec = 0,
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.tv_usec = 650000
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};
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gettimeofday (&timev, NULL);
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timersub (&timev, &key->down_at, &timev);
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if (timercmp (&timev, &ms650, <))
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{
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if (self->debug) fprintf (stdout,
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"Generating ESC!\n");
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for (k = key->to_keys; k != NULL; k = k->next) {
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XTestFakeKeyEvent (self->ctrl_conn,
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k->key, True, 0);
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if (kk == k->key)
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key->fake += 2;
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}
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for (k = key->to_keys; k != NULL; k = k->next) {
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XTestFakeKeyEvent (self->ctrl_conn,
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k->key, False, 0);
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}
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XFlush (self->ctrl_conn);
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}
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}
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key->used = False;
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key->pressed = False;
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}
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}
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void intercept (XPointer user_data, XRecordInterceptData *data)
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{
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XCape_t *self = (XCape_t*)user_data;
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static Bool ctrl_pressed = False;
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static Bool ctrl_used = False;
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static Bool mouse_pressed = False;
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KeyMap_t *km;
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if (data->category == XRecordFromServer)
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{
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@ -199,64 +272,81 @@ void intercept (XPointer user_data, XRecordInterceptData *data)
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key_event, key_code);
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if (key_event == ButtonPress)
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{
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ctrl_used = ctrl_pressed;
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mouse_pressed = True;
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}
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else if (key_event == ButtonRelease)
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{
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mouse_pressed = False;
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}
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else
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{
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if (XkbKeycodeToKeysym (self->ctrl_conn, key_code, 0, 0)
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== XK_Control_L)
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{
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if (key_event == KeyPress)
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{
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if (self->debug) fprintf (stdout, "Control pressed!\n");
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ctrl_pressed = True;
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gettimeofday (&self->down_at, NULL);
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if (mouse_pressed)
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{
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ctrl_used = True;
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}
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for (km = self->map; km != NULL; km = km->next) {
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if (XkbKeycodeToKeysym (self->ctrl_conn, key_code, 0, 0)
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== km->from) {
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handle_key(self, km, mouse_pressed, key_event);
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} else if (km->pressed && key_event == KeyPress) {
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km->used = True;
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}
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else
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{
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if (self->debug) fprintf (stdout, "Control released!\n");
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if (ctrl_used == False)
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{
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struct timeval timev, ms650 = {
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.tv_sec = 0,
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.tv_usec = 650000
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};
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gettimeofday (&timev, NULL);
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timersub (&timev, &self->down_at, &timev);
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if (timercmp (&timev, &ms650, <))
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{
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if (self->debug) fprintf (stdout,
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"Generating ESC!\n");
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XTestFakeKeyEvent (self->ctrl_conn,
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self->escape_key, True, 0);
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XTestFakeKeyEvent (self->ctrl_conn,
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self->escape_key, False, 0);
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XFlush (self->ctrl_conn);
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}
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}
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ctrl_pressed = False;
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ctrl_used = False;
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}
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}
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else if (ctrl_pressed && key_event == KeyPress)
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{
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ctrl_used = True;
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}
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}
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}
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XRecordFreeData (data);
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}
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static
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KeyMap_t* parse_token(Display *dpy, char *token) {
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KeyMap_t *km = NULL;
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Key_t *k, *nk;
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KeySym ks;
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char *from, *to, *key;
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to = token;
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from = strsep(&to, "=");
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if (from != NULL) {
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km = calloc(1, sizeof(KeyMap_t));
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if ((ks = XStringToKeysym(from)) == NoSymbol) {
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fprintf(stderr, "Cannot parse %s\n", token);
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return NULL;
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}
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km->from = ks;
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km->to_keys = k = NULL;
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for(;;) {
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key = strsep(&to, "|");
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if (key == NULL)
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break;
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if ((ks = XStringToKeysym(key)) == NoSymbol) {
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fprintf(stderr, "Cannot parse %s\n", to);
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return NULL;
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}
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nk = calloc(1, sizeof(Key_t));
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nk->key = XKeysymToKeycode(dpy, ks);
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if (k == NULL) {
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km->to_keys = k = nk;
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} else {
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k->next = nk;
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k = nk;
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}
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}
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}
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return km;
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}
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void parse_mapping (XCape_t *self, char *mapping)
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{
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char *token;
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KeyMap_t *km, *nkm;
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km = self->map = NULL;
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for(;;) {
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token = strsep(&mapping, ";");
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if (token == NULL)
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break;
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nkm = parse_token(self->ctrl_conn, token);
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if (nkm != NULL) {
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if (km == NULL)
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self->map = km = nkm;
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else {
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km->next = nkm;
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km = nkm;
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}
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}
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}
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}
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